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12012-01-15  Jim Meyering  <meyering@redhat.com>
2
3	maint: get fdl.texi from gnulib
4	* bootstrap.conf (gnulib_modules): Add fdl.
5	* doc/fdl.texi: Remove file.
6	* doc/.gitignore: Add it here.
7
82012-01-15  Jim Meyering  <meyering@redhat.com>
9
10	maint: spell "file system" as two separate words
11	* doc/Doxyfile.in: Spell it "file system", to avoid a
12	"make syntax-check" failure.
13
142012-01-15  Jim Meyering  <meyering@redhat.com>
15
16	maint: avoid "the the"
17	* djgpp/README.in: s/the the/the/
18	* src/parse-gram.c (lloc_default): Likewise.
19	* src/parse-gram.y (lloc_default): Likewise, and remove a
20	trailing space.
21
222012-01-13  Jim Meyering  <meyering@redhat.com>
23
24	build: avoid warning from coverity about lbitset_elt_find
25	* lib/lbitset.c (lbitset_elt_find): Remove unnecessary test of "elt",
26	at a point where we know it is non-NULL, due to prior dereference.
27
282012-01-13  Akim Demaille  <akim@lrde.epita.fr>
29
30	maint: factor copyright year.
31	* configure.ac: Use $PACKAGE_COPYRIGHT_YEAR instead of repeating it.
32
332012-01-13  Akim Demaille  <akim@lrde.epita.fr>
34
35	maint: catch missing gnulib macros.
36	* configure.ac: Add m4_pattern_forbid.
37
382012-01-11  Tim Landscheidt  <tim@tim-landscheidt.de>
39
40	java: remove used variable.
41	* data/lalr1.java (yyresult): remove, unused.
42
432012-01-11  Akim Demaille  <demaille@gostai.com>
44
45	scanner: fix typo.
46	* src/scan-skel.l (@`): s/emtpy/empty/.
47	Reported by Tim Landscheidt.
48
492012-01-06  Jim Meyering  <meyering@redhat.com>
50
51	build: avoid warnings about set-but-not-used variables
52	* lib/bitset_stats.c (bitset_stats_list): Remove declaration
53	and set of unused local, "type".
54	* lib/ebitset.c (ebitset_init): Likewise, for "size".
55	* lib/lbitset.c (lbitset_not): Likewise, for "elt".
56
572011-08-21  Joel E. Denny  <joeldenny@joeldenny.org>
58
59	tests: add -pedantic for --enable-gcc-warnings.
60	This should help to avoid some portability problems.  For example,
61	it would have revealed the empty unions fixed by the last patch
62	* configure.ac (WARN_CFLAGS_TESTS, WARN_CXXFLAGS_TEST): Implement.
63	* tests/synclines.at (AT_TEST_SYNCLINE): Avoid -pedantic warning
64	about an empty translation unit.
65
662011-08-21  Joel E. Denny  <joeldenny@joeldenny.org>
67
68	tests: fix empty unions.
69	Empty unions are not accepted by the ISO C99 grammar or by at
70	least some versions of Sun Studio.  Reported by Wolfgang S. Kechel
71	at
72	<http://lists.gnu.org/archive/html/bug-bison/2011-08/msg00003.html>.
73	* NEWS (2.5.1): Document fix.
74	* THANKS (Wolfgang S. Kechel): Add.
75	* tests/existing.at (GNU Cim Grammar)
76	(GNU pic (Groff 1.18.1) Grammar.): Remove empty %union.
77
782011-07-10  Joel E. Denny  <joeldenny@joeldenny.org>
79
80	build: avoid YACC typo inherited from Autoconf.
81	The typo shows up in the `configure --help' output.  Reported by
82	W.C.A. Wijngaards and Paul Eggert at
83	<http://lists.gnu.org/archive/html/bug-bison/2011-07/msg00000.html>.
84	* README-hacking (Release Procedure): Remind about updating
85	maintainer tools before a release.
86	* THANKS (W.C.A. Wijngaards): Add.
87	* configure.ac (AC_PREREQ): Set to 2.68, which fixes the YACC
88	typo.
89
902011-07-10  Joel E. Denny  <joeldenny@joeldenny.org>
91
92	build: create xz instead of bzip2 tarballs.
93	Suggested by Jim Meyering at
94	<http://lists.gnu.org/archive/html/bug-bison/2011-06/msg00012.html>.
95	* README-hacking (Release Procedure): Update example.
96	* configure.ac (AM_INIT_AUTOMAKE): Replace dist-bzip2 with
97	dist-xz.
98
992011-05-29  Joel E. Denny  <joeldenny@joeldenny.org>
100
101	doc: clean up references to `Locations Overview'.
102	* doc/bison.texinfo (Locations Overview): Rename node to...
103	(Locations): ... this, which is its section name.  Update menus to
104	match that and not to use the title `Tracking Locations', which is
105	a different section.
106
1072011-05-29  Joel E. Denny  <joeldenny@joeldenny.org>
108
109	doc: clean up references to `Tracking Locations'.
110	* doc/bison.texinfo (Locations): Rename node to...
111	(Tracking Locations): ... this, which is its section name, and
112	update all cross references.  The trouble is that there is another
113	node about locations.  Its section name is `Locations', which was
114	easily confused with the node name of this node.  Moreover, its
115	node name is `Locations Overview', which was mistakenly used to
116	label some cross references to this node.
117
1182011-05-29  Joel E. Denny  <joeldenny@joeldenny.org>
119
120	doc: clean up `Named References' a little.
121	* doc/bison.texinfo (Named References): Rename section to match
122	the node name, and update all cross references.  Don't use the
123	acronyms RHS and LHS given that we don't expand them anywhere in
124	the manual.  Try to use @samp and @code properly.  Mention that
125	named references are experimental as we've already stated in NEWS.
126	(Destructor Decl): Expand the only remaining use of RHS or LHS.
127
1282011-05-29  Joel E. Denny  <joeldenny@joeldenny.org>
129
130	doc: motivate named references.
131	Suggested by Hans Aberg at
132	<http://lists.gnu.org/archive/html/bug-bison/2011-05/msg00008.html>.
133	* doc/bison.texinfo (Named References): Explain briefly how
134	they're better than the traditional positional references.
135
1362011-05-29  Joel E. Denny  <joeldenny@joeldenny.org>
137
138	doc: discuss named references after locations.
139	Reported by Hans Aberg at
140	<http://lists.gnu.org/archive/html/bug-bison/2011-05/msg00008.html>.
141	* NEWS (2.5.1): Document.
142	* doc/bison.texinfo (Named References): Because it discusses
143	locations in addition to semantic values, move this subsection out
144	of the section `Defining Language Semantics', where locations have
145	not yet been introduced, to be a new section after the following
146	section, `Tracking Locations'.
147
1482011-05-29  Joel E. Denny  <joeldenny@joeldenny.org>
149
150	Prepare for the possibility of a 2.5.1 release.
151	* NEWS (2.5.1): New heading.
152
1532011-05-14  Joel E. Denny  <joeldenny@joeldenny.org>
154
155	Version 2.5.
156	* NEWS (2.5): Set date.
157
1582011-05-14  Joel E. Denny  <joeldenny@joeldenny.org>
159
160	Don't use IF_LINT in Bison sources.
161	It creates unnecessary differences between the sources that Bison
162	maintainers build and test (given that maintainers normally
163	configure with --enable-gcc-warnings) and the sources that Bison
164	users build.  Instead, use PACIFY_CC, which doesn't.  This change
165	fixes compiler warnings reported by Tys Lefering at
166	<http://lists.gnu.org/archive/html/bison-patches/2011-05/msg00004.html>.
167	* configure.ac: Don't AC_DEFINE lint regardless of the configure
168	options.  This change affects imported gnulib sources, where
169	IF_LINT still appears and depends on lint.
170	* src/scan-gram.l, src/scan-skel.l: Replace uses of IF_LINT with
171	PACIFY_CC.
172	* src/system.h (IF_LINT): Remove cpp macro.
173	(PACIFY_CC): New cpp macro.
174
1752011-05-01  Joel E. Denny  <joeldenny@joeldenny.org>
176
177	Fix precedence for end token.
178	Since Bison 2.3b, which restored the ability of precedence
179	directives to assign user token numbers, doing so for user token
180	number 0 has produced an assertion failure.
181	* NEWS (2.5): Document fix.
182	* src/symtab.c (symbol_user_token_number_set): In the case of the
183	end token, don't decrement ntokens if it was never incremented.
184	* tests/regression.at (Token number in precedence declaration):
185	Extend.
186
1872011-05-01  Joel E. Denny  <joeldenny@joeldenny.org>
188
189	Prepare for 2.5 release.
190	* NEWS (2.5_rc1): Rename back to...
191	(2.5): ... this, and unset date.
192
1932011-05-01  Joel E. Denny  <joeldenny@joeldenny.org>
194
195	Version 2.5_rc1.
196	* NEWS (2.5): Rename to...
197	(2.5_rc1): ... this, and set date.
198
1992011-05-01  Joel E. Denny  <joeldenny@joeldenny.org>
200
201	Pacify -DGNULIB_POSIXCHECK.
202	* bootstrap.conf (gnulib_modules): Add all modules suggested by
203	-DGNULIB_POSIXCHECK.
204	* src/files.c (file_name_split)
205	* src/getargs.c (getargs)
206	* src/location.c (boundary_set_from_string)
207	* src/output.c (token_definitions_output, output_skeleton)
208	* src/parse-gram.y (prologue_declaration)
209	* src/scan-gram.l (handle_syncline)
210	* src/symtab.c (symbol_new): Use mbschr and mbsrchr instead of
211	strchr and strrchr.  In the cases of command-line options, file
212	names, and thus locations, functionality may be improved.  In the
213	case of symbol names, there should be no functional difference as
214	all characters are ASCII, so the intended benefit is just warning
215	suppression.
216
2172011-05-01  Joel E. Denny  <joeldenny@joeldenny.org>
218
219	* NEWS (2.5): Fix minor typos.
220
2212011-05-01  Joel E. Denny  <joeldenny@joeldenny.org>
222
223	doc: clean up quotation style in NEWS.
224	* NEWS (2.5): For multi-character tokens in example grammar rules,
225	use "token" not 'token'.  In English, use a consistent quotation
226	style; we might as well follow the precedent seen in info pages:
227	`quote' not "quote".
228
2292011-04-16  Joel E. Denny  <joeldenny@joeldenny.org>
230
231	tests: pacify gcc 4.6.0's -Wunused-but-set-variable.
232	Reported by Jim Meyering at
233	<http://lists.gnu.org/archive/html/bug-bison/2011-04/msg00002.html>.
234	* tests/actions.at
235	(Default %printer and %destructor for mid-rule values): Define
236	YYLLOC_DEFAULT so that it uses its Rhs argument.
237
2382011-04-16  Joel E. Denny  <joeldenny@joeldenny.org>
239
240	glr.c: omit yyresolveLocations when locations are disabled.
241	This prevents gcc 4.6.0's -Wunused-but-set-variable from warning
242	about yyresolveLocations's local yyrhsloc.  When locations are
243	enabled, there's no such warning because YYLLOC_DEFAULT then uses
244	yyrhsloc.  Reported by Jim Meyering at
245	<http://lists.gnu.org/archive/html/bug-bison/2011-04/msg00002.html>.
246	* data/glr.c (yyresolveLocations): Omit definition when locations
247	are disabled.
248	(yyresolveValue): Omit yyresolveLocations invocation when
249	locations are disabled.
250
2512011-04-16  Joel E. Denny  <joeldenny@joeldenny.org>
252
253	gnulib, autoconf: update.
254	* README-hacking (Updating a submodule): Give advice on how to
255	determine the versions of gnulib and autoconf to which we should
256	update.
257	(Release Procedure): Note that submodules should be updated.
258	* bootstrap.conf (gnulib_modules): Rename pipe to spawn-pipe as
259	suggested in updated gnulib NEWS.
260	* gnulib: Choose a stable snapshot according to advice in Bison's
261	README-hacking.
262	* po/POTFILES.in (lib/pipe.c): Rename to...
263	(lib/spawn-pipe.c): ... this.
264	* src/output.c: Update to include spawn-pipe.h.
265	* submodules/autoconf: Update to latest for improvement in m4.m4
266	that excludes M4 with buggy strstr.  The only other changes to
267	files that we use are copyright updates.
268
2692011-04-09  Joel E. Denny  <joeldenny@joeldenny.org>
270
271	Fix missing updates to GPLv3.
272	Reported by Tys Lefering at
273	<http://lists.gnu.org/archive/html/bison-patches/2011-04/msg00000.html>.
274	* src/print-xml.c, src/print-xml.h: In these files.
275
2762011-03-27  Joel E. Denny  <joeldenny@joeldenny.org>
277
278	Add -Wconflicts-sr and -Wconflicts-rr.
279	Thus, conflict reports are now affected by -Werror and -Wnone
280	(unless %expect or %expect-rr is specified).  Reported by George
281	Neuner at
282	<http://lists.gnu.org/archive/html/bug-bison/2010-08/msg00002.html>.
283	* NEWS (2.5): Document.
284	* doc/bison.texinfo (Bison Options): Document.
285	* src/complain.c, src/complain.h (set_warning_issued): Export
286	function.
287	* src/conflicts.c (conflicts_print): Suppress conflict report
288	based on -Wno-conflicts-sr and -Wno-conflicts-rr, and treat
289	conflicts as errors if -Werror.
290	* src/getargs.c (warnings_flag): Initialize with
291	warnings_conflicts_sr and warnings_conflicts_rr as well.
292	(warnings_args, warnings_types): Add entries for
293	warnings_conflicts_sr and warnings_conflicts_rr.
294	(usage): Update.
295	* src/getargs.h (enum warnings): Add entries for
296	warnings_conflicts_sr and warnings_conflicts_rr.
297	* tests/conflicts.at (-W versus %expect and %expect-rr): New test
298	group.
299	* tests/local.at (AT_BISON_CHECK_NO_XML): Update now that the
300	conflict report can produce a "warnings being treated as errors"
301	message.  Also, check that stderr is now fully scrubbed by -Wnone
302	when the exit status is 0.
303
3042011-03-27  Joel E. Denny  <joeldenny@joeldenny.org>
305
306	Pacify maintainer-check-posix.
307	Adding command-line options after the grammar file name is not
308	permitted, so disable checks that do that when
309	maintainer-check-posix is running.
310	* tests/local.at (AT_BISON_CHECK_NO_XML): Don't run the
311	problematic checks when POSIXLY_CORRECT=1.  Also, for readability,
312	remove an unnecessary m4_if.
313
3142011-03-27  Joel E. Denny  <joeldenny@joeldenny.org>
315
316	Add -Wother so -Wnone suppresses all warnings.
317	Reported by George Neuner at
318	<http://lists.gnu.org/archive/html/bug-bison/2010-08/msg00002.html>.
319	* NEWS (2.5): Document.
320	* THANKS (George Neuner): Add.
321	* doc/bison.texinfo (Bison Options): Document.
322	* src/complain.c, src/complain.h
323	(warn_at, warn_at_indent, warn): Suppress warning if -Wno-other.
324	(midrule_value_at): New warning function, similar to yacc_at in
325	that it's controlled by its own warning category.
326	* src/getargs.c (warnings_flag): Initialize to warnings_other.
327	(warnings_args, warnings_types): Add entry for warnings_other.
328	(usage): Update.
329	* src/getargs.h (enum warnings): Add entry for warnings_other.
330	* src/gram.c (grammar_rules_useless_report): If -Wno-other, then
331	don't print useless rules.
332	* src/reader.c (symbol_should_be_used): Rather than adjusting the
333	return value based on whether midrule value warnings are enabled,
334	accept a new parameter for telling the caller whether true is
335	being returned for a potential midrule warning.
336	(grammar_rule_check): Use midrule_value_at for midrule value
337	warnings, and continue to use warn_at for all other warnings.  Let
338	them check whether the warnings are enabled.
339	* tests/local.at (AT_BISON_CHECK): Update documentation.
340	(AT_BISON_CHECK_NO_XML): Check that -Wnone and --warnings=none
341	disable all warnings exercised in the test suite.
342
3432011-03-27  Joel E. Denny  <joeldenny@joeldenny.org>
344
345	Don't let -Wnone disable -Werror.
346	Discussed at
347	<http://lists.gnu.org/archive/html/bison-patches/2010-08/msg00009.html>.
348	* NEWS (2.5): Document.
349	* src/getargs.c (flags_argmatch): Accept a new argument that
350	specifies what flags "all" and thus "none" affect.
351	(FLAGS_ARGMATCH): Update flags_argmatch invocation.
352	* tests/input.at (-Werror is not affected by -Wnone and -Wall):
353	New test group.
354
3552011-03-27  Joel E. Denny  <joeldenny@joeldenny.org>
356
357	* NEWS (2.5): Document fix for -Wno-CATEGORY.
358
3592008-11-21  Di-an Jan  <dianj@freeshell.org>
360
361	Implement no-XXX arguments for --warnings, --report, --trace.
362	* src/getargs.c (flags_argmatch): Handles no-XXX.
363	Fix typo in doxygen comment.
364
3652011-03-20  Joel E. Denny  <joeldenny@joeldenny.org>
366
367	doc: fix confusing citation of LAC publication.
368	Suggested by Akim Demaille.
369	* doc/bison.texinfo (LAC): Here.
370
3712011-03-20  Joel E. Denny  <joeldenny@joeldenny.org>
372
373	lr.default-reductions: rename "full" value to "most".
374	Unlike "consistent" and "accepting", "full" doesn't answer the
375	question of "which states".
376	* doc/bison.texinfo (%define Summary): Update.
377	(Default Reductions): Update.
378	* src/print.c (print_reductions): Update.
379	* src/reader.c (prepare_percent_define_front_end_variables):
380	Update.
381	* src/tables.c (action_row): Update.
382	* tests/input.at (%define enum variables): Update.
383	* tests/reduce.at (%define lr.default-reductions): Update.
384
3852011-03-13  Joel E. Denny  <joeldenny@joeldenny.org>
386
387	* src/parse-gram.c, src/parse-gram.h: Regenerate.
388
3892011-03-09  Akim Demaille  <akim@lrde.epita.fr>
390
391	named references: fix double free.
392	In `rhs[name]: "a" | "b"', do not free "name" twice.
393	Reported by Tys Lefering.
394	<http://lists.gnu.org/archive/html/bug-bison/2010-06/msg00002.html>
395	* src/named-ref.h, src/named-ref.c (named_ref_copy): New.
396	* src/parse-gram.y (current_lhs): Rename as...
397	(current_lhs_symbol): this.
398	(current_lhs): New function.  Use it to free the current lhs
399	named reference.
400	* src/reader.c: Bind lhs to a copy of the current named reference.
401	* src/symlist.c: Rely on free (0) being valid.
402	* tests/named-refs.at: Test this.
403
4042011-03-09  Akim Demaille  <akim@lrde.epita.fr>
405
406	tests: style changes.
407	* tests/named-refs.at (Redundant words in LHS brackets)
408	(Unresolved references): here.
409
4102011-03-06  Joel E. Denny  <joeldenny@joeldenny.org>
411
412	java: fix parser tracing bug.
413	* NEWS (2.5): Document.
414	* data/lalr1.java (YYParser::YYStack::print): Don't skip top
415	element.
416
4172011-03-06  Joel E. Denny  <joeldenny@joeldenny.org>
418
419	java: finish fixing parser stack popping bug.
420	* NEWS (2.5): Document.
421	* data/lalr1.java (YYParser::YYStack::pop): Fix off-by-one error
422	in clearing the location stack.  Also fix pop function that
423	accepts no arguments.
424
4252011-03-06  Angelo Borsotti  <angelo.borsotti@gmail.com>  (tiny change)
426
427	java: fix parser stack popping bug.
428	Reported at
429	<http://lists.gnu.org/archive/html/bug-bison/2011-02/msg00005.html>.
430	* THANKS (Angelo Borsotti): Add.
431	* data/lalr1.java (YYParser::YYStack::pop): Fix off-by-one error
432	in clearing the value stack.  Previously, the top element of the
433	stack wasn't cleared and so the value was not garbage collected.
434
4352011-03-06  Joel E. Denny  <joeldenny@joeldenny.org>
436
437	doc: cite publication for LAC.
438	* doc/bison.texinfo (LAC): Here.
439
4402011-03-06  Joel E. Denny  <joeldenny@joeldenny.org>
441
442	doc: clean up terminology for mysterious conflicts.
443	* doc/bison.texinfo (Mystery Conflicts): Rename node to...
444	(Mysterious Conflicts): ... this, which is already the section
445	title and the name used in the index.  Update all cross-references
446	to this node.  Also, don't imply that R/R conflicts are the only
447	kind of mysterious conflict.
448
4492011-03-06  Joel E. Denny  <joeldenny@joeldenny.org>
450
451	lr.default-reductions: rename "all" value to "full".
452	States that shift the error token do not have default reductions,
453	and GLR disables some default reductions, so "all" was a misnomer.
454	* doc/bison.texinfo (%define Summary): Update.
455	(Default Reductions): Update.
456	* src/print.c (print_reductions): Update.
457	* src/reader.c (prepare_percent_define_front_end_variables):
458	Update.
459	* src/tables.c (action_row): Update.
460	* tests/input.at (%define enum variables): Update.
461	* tests/reduce.at (%define lr.default-reductions): Update.
462
4632011-03-06  Joel E. Denny  <joeldenny@joeldenny.org>
464
465	doc: create a new Tuning LR section in the manual.
466	And clean up all other documentation of the features described
467	there.
468	* NEWS (2.5): Tweak wording of lr.type and parse.lac entries a
469	bit, update the cross-references to the manual, and point out that
470	LAC has caveats.  Don't be so adamant that IELR+LAC=canonical LR.
471	That is, as the referenced section in the manual documents, LAC
472	does not fix infinite parsing loops on syntax errors.
473	* doc/bison.texinfo: Consistently drop the "(1)" suffix from LALR,
474	IELR, and LR in @cindex.
475	(%define Summary): Condense the entries for lr.default-reductions,
476	lr.keep-unreachable-states, lr.type, and parse.lac into brief
477	summaries, and cross-reference the appropriate subsections of
478	Tuning LR.  For parse.lac, mention that it's only implemented for
479	deterministic parsers in C.
480	(Error Reporting): When mentioning %error-verbose, mention LAC,
481	and add cross-reference to the LAC section.
482	(Tuning LR): New section with an extended version of the
483	documentation removed from %define Summary.  Change all
484	cross-references in the manual to point here instead of there.
485	(Calc++ Parser): When mentioning %error-verbose, mention LAC, and
486	add cross-reference to the LAC section.
487	(Table of Symbols): In %error-verbose and YYERROR_VERBOSE entries,
488	add cross-references to Error Reporting.
489	(Glossary): Capitalize entry titles consistently.  Add definitions
490	for "defaulted state" and "unreachable state".  Expand IELR
491	acronym in IELR's entry.
492
4932011-02-20  Joel E. Denny  <joeldenny@joeldenny.org>
494
495	doc: add bibliography to manual.
496	* doc/bison.texinfo (Mystery Conflicts): Cross-reference
497	bibliography instead of citing publications directly.
498	(Generalized LR Parsing): Likewise.
499	(Bibliography): New section.  Not all entries are cross-referenced
500	yet, but that will come in future patches.
501
5022011-02-19  Joel E. Denny  <joeldenny@joeldenny.org>
503
504	java: test and document previous bug fix.
505	* NEWS (2.5): Document it.
506	* tests/java.at (_AT_DATA_JAVA_CALC_Y): To one of the yyerror
507	invocations, pass a location that spans multiple tokens.  Change
508	yyerror to report all of a location rather than just the begin
509	position.  Extend yylex and Position to count tokens on a line.
510	Remove getHashCode as it's unused.  Update all expected output.
511
5122011-02-19  Bernd Kiefer  <kiefer@dfki.de>  (tiny change)
513
514	java: fix location handling bug.
515	Reported at
516	<http://lists.gnu.org/archive/html/bison-patches/2011-02/msg00005.html>.
517	* data/lalr1.java (YYParser::yylloc): For non-empty RHS, fix
518	reversed access to location stack.
519	* THANKS (Bernd Kiefer): Add.
520
5212010-05-11  Akim Demaille  <demaille@gostai.com>
522
523	doc: please Emacs.
524	* doc/bison.texinfo (Local Variables): Move this after the
525	LocalWords, since the latter are looked for in the whole document,
526	while the former are looked for only at its end.
527	Require american spell checking.
528
5292011-02-06  Joel E. Denny  <joeldenny@joeldenny.org>
530
531	doc: clean up new subsections in manual.
532	* doc/bison.texinfo (%define Summary): Reword so it reads well as
533	a separate section.  For example, add an intro, and move most of
534	the text outside of the @deffn so it is not indented so far.
535	(%code Summary): Likewise.
536	(Table of Symbols): Reword %code entry to match the %code entry in
537	Decl Summary.
538
5392011-02-06  Joel E. Denny  <joeldenny@joeldenny.org>
540
541	doc: finish splitting apart the manual's Decl Summary section.
542	Suggested by Akim Demaille at
543	<http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00013.html>.
544	* doc/bison.texinfo (Decl Summary): Extract most of the %define
545	entry into...
546	(%define Summary): ... this new subsection, and update all
547	cross-references.  For readability of the patches, rewriting of
548	the text so it makes sense as a separate subsection will come in a
549	later patch.  Moreover, the majority of the text describing the
550	various new LR features should likely move to another new section
551	somewhere.
552
5532011-02-06  Joel E. Denny  <joeldenny@joeldenny.org>
554
555	doc: begin to split apart the manual's Decl Summary section.
556	Discussed in thread starting at
557	<http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00013.html>.
558	* doc/bison.texinfo (Decl Summary): Extract most of the %code
559	entry into...
560	(%code Summary): ... this new subsection, and update all
561	cross-references.  For readability of the patches, rewriting of
562	the text so it makes sense as a separate subsection will come in a
563	later patch.
564
5652011-02-06  Joel E. Denny  <joeldenny@joeldenny.org>
566
567	doc: clean up naming of various Bison files.
568	The Bison manual's names for various files associated with a Bison
569	parser has devolved into inconsistency.  This patch makes the
570	naming consistent for the most important files.  First, it chooses
571	"grammar file" over "input file".  The former appears to be more
572	traditional in the Bison manual, and Bison has other input
573	files (skeletons).  Second, it chooses "parser implementation
574	file" over names like "parser file", "parser source file", "parser
575	source code file", and "parser output file".  The new name makes
576	it clearer where Bison generates the main parser implementation,
577	and it is easily distinguishable from "parser header file".
578	* doc/bison.texinfo: Implement throughout.
579
5802011-02-06  Joel E. Denny  <joeldenny@joeldenny.org>
581
582	doc: give credit to more of Bison's developers.
583	* doc/bison.texinfo (Introduction): Don't imply that only Robert
584	Corbett, Richard Stallman, and Wilfred Hansen have contributed to
585	Bison.  However, I don't have time to write a full history, so
586	just point readers to THANKS and ChangeLog.
587
5882011-02-06  Joel E. Denny  <joeldenny@joeldenny.org>
589
590	doc: document experimental features better.
591	* doc/bison.texinfo (Introduction): Say that IELR(1) and canonical
592	LR(1) are experimental.  Mention Java.  Normally experimental
593	features probably shouldn't be mentioned in the introduction.
594	However, if Bison's limitations to LALR(1), C, and C++ are so
595	important that they should be mentioned here, then it's important
596	to point out that Bison is beginning to escape those limitations.
597	Moreover, these particular experimental features have very little
598	chance of being removed.
599	* src/getargs.c (usage): Say that IELR(1) and canonical LR(1) are
600	experimental.
601
6022011-01-29  Joel E. Denny  <joeldenny@joeldenny.org>
603
604	Do not allow identifiers that start with a dash.
605	This cleans up our previous fixes for a bug whereby Bison
606	discarded `.field' in `$-1.field'.  The previous fixes were less
607	restrictive about where a dash could appear in an identifier, but
608	the restrictions were hard to explain.  That bug was reported and
609	this final fix was originally suggested by Paul Hilfinger.  This
610	also fixes a remaining bug reported by Paul Eggert whereby Bison
611	parses `%token ID -123' as `%token ID - 123' and handles `-' as an
612	identifier.  Now, `-' cannot be an identifier.  Discussed in
613	threads beginning at
614	<http://lists.gnu.org/archive/html/bug-bison/2011-01/msg00000.html>,
615	<http://lists.gnu.org/archive/html/bug-bison/2011-01/msg00004.html>.
616	* NEWS (2.5): Update entry describing the dash extension to
617	grammar symbol names.  Also, move that entry before the named
618	references entry because the latter mentions the former.
619	* doc/bison.texinfo (Symbol): Update documentation for symbol
620	names.  As suggested by Paul Eggert, mention the effect of periods
621	and dashes on named references.
622	(Decl Summary): Update documentation for unquoted %define values,
623	which, as a side effect, can no longer start with dashes either.
624	* src/scan-code.l (id): Implement.
625	* src/scan-gram.l (id): Implement.
626	* tests/actions.at (Exotic Dollars): Extend test group to exercise
627	bug reported by Paul Hilfinger.
628	* tests/input.at (Symbols): Update test group, and extend to
629	exercise bug reported by Paul Eggert.
630	* tests/named-refs.at (Stray symbols in brackets): Update test
631	group.
632	($ or @ followed by . or -): Likewise.
633	* tests/regression.at (Invalid inputs): Likewise.
634
6352011-01-24  Joel E. Denny  <joeldenny@joeldenny.org>
636
637	* data/yacc.c: Fix last apostrophe warning from xgettext.
638
6392011-01-09  Paul Eggert  <eggert@cs.ucla.edu>
640
641	Fix minor problems encountered by a fresh bootstrap.
642	* data/glr.c, data/yacc.c: Do not use apostrophes in '#' comments,
643	as they confuse xgettext, which tries to parse them as C character
644	constants in a preprocessor directive.
645	* data/yacc.c (yy_lac): Don't use printf %d format on *yyesp, as
646	that expression might not promote to int on some platforms.
647	* src/parse-gram.c, src/parse-gram.h: Regenerate.
648
6492011-01-09  Joel E. Denny  <joeldenny@joeldenny.org>
650
651	Improve error messages for `$' or `@' followed by `.' or `-'.
652	Previously, for this special case of an invalid reference, the
653	usual "symbol not found in production:" was printed.  However,
654	because the symbol name was parsed as the empty string, that
655	message was followed immediately by a newline instead of a symbol
656	name.  In reality, this is a syntax error, so the reference is
657	invalid regardless of the symbols actually appearing in the
658	production.  Discussed at
659	<http://lists.gnu.org/archive/html/bison-patches/2011-01/msg00012.html>.
660	* src/scan-code.l (parse_ref): Report the above case as a syntax
661	error.  Other than that, continue to handle this case like any
662	other invalid reference that Bison manages to parse because
663	"possibly meant" messages can still be helpful to the user.
664	* tests/named-refs.at ($ or @ followed by . or -): New test group.
665
6662011-01-08  Joel E. Denny  <joeldenny@joeldenny.org>
667
668	doc: don't use @acronym.
669	Lately, many GNU packages are dropping it.  See
670	<http://lists.gnu.org/archive/html/bison-patches/2011-01/msg00003.html>.
671	* doc/bison.texinfo: Remove all uses.
672
6732011-01-05  Alex Rozenman  <rozenman@gmail.com>
674
675	Do not allow identifiers that start with a negative number.
676	Reported by Paul Hilfinger as a side effect of named references
677	support at
678	<http://lists.gnu.org/archive/html/bug-bison/2011-01/msg00000.html>.
679	Suggested by Paul Eggert.
680	* src/scan-code.l ({letter}, {id}): Adjust lexical definitions.
681	* src/scan-gram.l ({letter}, {id}): Likewise.
682
6832011-01-03  Joel E. Denny  <joeldenny@joeldenny.org>
684
685	* ChangeLog (2011-01-02): improve description.
686
6872011-01-03  Joel E. Denny  <joeldenny@joeldenny.org>
688
689	maint: don't update copyright years in bootstrap.
690	* .x-update-copyright: Add entry for bootstrap.
691	* bootstrap: Remove 2011 from copyright years.  The bootstrap
692	version we're currently using comes from an older version of
693	gnulib.
694	* bootstrap.conf (bootstrap_sync): Add comments explaining this
695	issue.
696
6972011-01-02  Joel E. Denny  <joeldenny@joeldenny.org>
698
699	maint: run "make update-copyright".
700
7012011-01-02  Joel E. Denny  <joeldenny@joeldenny.org>
702
703	maint: prepare to use year ranges in copyright notices.
704	* README (Copyright statements): New section explaining the range
705	notation.  The GNU maintainers document requires this explanation:
706	<http://www.gnu.org/prep/maintain/maintain.html#Copyright-Notices>.
707	I copied our explanation from coreutils.
708	* build-aux/update-b4-copyright: Revert 2010-06-17 changes that
709	disabled Bison's automated use of ranges.
710	* cfg.mk (update-copyright-env): Likewise.
711
7122011-01-02  Joel E. Denny  <joeldenny@joeldenny.org>
713
714	Correct my email address.
715	* ChangeLog: In all recent entries.
716	* THANKS (Joel E. Denny): Here.
717
7182010-12-19  Joel E. Denny  <joeldenny@joeldenny.org>
719
720	doc: cleanup.
721	* NEWS (2.5): Try to sort entries according to how interesting
722	users might find them.
723
7242010-12-19  Joel E. Denny  <joeldenny@joeldenny.org>
725
726	doc: cleanup.
727	* NEWS (2.5): Make some minor improvements to wording, and format
728	entries more consistently.
729	* doc/bison.texinfo (Language and Grammar): Point out that IELR
730	and canonical LR are experimental features.
731	(Decl Summary): In list of %define variables, make wording more
732	consistent.  Improve discussion of using LALR for GLR.
733
7342010-12-19  Joel E. Denny  <joeldenny@joeldenny.org>
735
736	parse.lac: document.
737	* NEWS (2.5): Add entry for LAC, and mention LAC in entry for
738	other corrections to verbose syntax error messages.
739	* doc/bison.texinfo (Decl Summary): Rewrite entries for
740	lr.default-reductions and lr.type to be clearer, to mention
741	%nonassoc's effect on canonical LR, and to mention LAC.  Add entry
742	for parse.lac.
743	(Glossary): Add entry for LAC.
744
7452010-12-11  Joel E. Denny  <joeldenny@joeldenny.org>
746
747	parse.lac: implement exploratory stack reallocations.
748	* data/yacc.c: Rename %define variable parse.lac.es-capacity to
749	parse.lac.es-capacity-initial.  Accept parse.lac.memory-trace
750	with values of "failures" (default) or "full".
751	(b4_declare_parser_state_variables): Add yyesa, yyes, and
752	yyes_capacity variables.
753	(YYSTACK_USE_ALLOCA): Ignore it if LAC requested.
754	(YYSTACK_ALLOC, YYSTACK_FREE, YYSTACK_ALLOC_MAXIMUM): Define if
755	LAC requested.
756	(YYCOPY_NEEDED): New cpp macro.
757	(YYCOPY): Define if LAC requested.
758	(yy_lac_stack_realloc): New function implementing stack
759	reallocations.  Use YYMAXDEPTH for maximum stack size given that
760	the stack should never need to grow larger than the main state
761	stack needs to grow without LAC.
762	(YY_LAC_ESTABLISH): Update yy_lac invocation.
763	(yy_lac): Add arguments for exploratory stack memory data
764	recorded in the main parser.  Invoke yy_lac_stack_realloc when
765	reallocation is necessary.
766	(yysyntax_error): Add the same new arguments and pass them to
767	yy_lac.
768	(yypstate_delete): Free yyes if necessary.
769	(yyesa, yyes, yyes_capacity): #define these to yypstate members
770	in the case of push parsing.
771	(yyparse, yypush_parse): Initialize yyes and yyes_capacity.
772	Update yysyntax_error invocations.  At yyreturn, free yyes if
773	necessary.
774	* src/parse-gram.y: %define parse.lac full.
775	* tests/input.at (LAC: errors for %define): Extend for
776	parse.lac-memory-trace.
777	* tests/regression.at (LAC: Exploratory stack): Extend to check
778	that stack reallocs happen when expected.
779	(LAC: Memory exhaustion): Update to use YYMAXDEPTH and
780	parse.lac.es-capacity-initial.
781
7822010-12-11  Joel E. Denny  <joeldenny@joeldenny.org>
783
784	parse.lac: implement as %define variable.
785	LAC = lookahead correction.  See discussion at
786	<http://lists.gnu.org/archive/html/bison-patches/2009-09/msg00034.html>.
787	However, one point there must be corrected: because of %nonassoc,
788	LAC is *not* always redundant for lr.type=canonical-lr.
789	* data/yacc.c: Accept values of "none" (default) or "full" for
790	parse.lac.  Accept %define parse.lac.es-capacity to specify
791	capacity of LAC's temporary exploratory stack.  It defaults to 20
792	and, for now, will not grow dynamically.
793	(b4_lac_flag, b4_lac_if): New m4 macros.  Evaluate as true for
794	parse.lac!=none.
795	(YYBACKUP): Invoke YY_LAC_DISCARD.
796	(YY_LAC_ESTABLISH, YY_LAC_DISCARD): New cpp macros that invoke
797	yy_lac and track when it needs to be invoked
798	(yy_lac): New function that, given the current stack, determines
799	whether a token can eventually be shifted.  Return status mimics
800	yyparse return status.
801	(yysyntax_error): Change yystate argument to yyssp so stack top
802	can be passed to yy_lac.  If LAC is requested, build expected
803	token list by invoking yy_lac for every token instead of just
804	checking the current state for lookaheads.  Return 2 if yy_lac
805	exhausts memory.
806	(yyparse, yypush_parse): Use local variable yy_lac_established and
807	cpp macros YY_LAC_ESTABLISH and YY_LAC_DISCARD to implement LAC.
808	Update yysyntax_error invocation.  Add yyexhaustedlab code if LAC
809	is requested.
810	* tests/conflicts.at (%nonassoc and eof): Extend to check the
811	effect of each of -Dlr.type=canonical-lr and -Dparse.lac=full.
812	(%error-verbose and consistent errors): Likewise.
813	(LAC: %nonassoc requires splitting canonical LR states): New test
814	group demonstrating how LAC can fix canonical LR.
815	* tests/input.at (LAC: Errors for %define): New test group.
816	* tests/regression.at (LAC: Exploratory stack): New test group.
817	(LAC: Memory exhaustion): New test group.
818
8192010-11-21  Joel E. Denny  <joeldenny@joeldenny.org>
820
821	build: use gnulib's new bootstrap_sync option.
822	Now, whenever we update bison's copy of gnulib, bootstrap will
823	update itself the next time it's run.
824	* bootstrap: Copy from latest gnulib for bootstrap_sync support.
825	* bootstrap.conf (bootstrap_sync): Set to true.
826	* gnulib: Update to latest so bootstrap is in sync now.
827
8282010-11-07  Joel E. Denny  <joeldenny@joeldenny.org>
829
830	yysyntax_error: adjust prior fixes for branch-2.5's lalr1.cc.
831	On master, there is no yychar in lalr1.cc, but there is on
832	branch-2.5, and the prior cherry-pick of "Fix handling of yychar
833	manipulation in user semantic actions" wasn't adjusted for that
834	difference.
835	* data/lalr1.cc (yy::parser::parse): Translate yychar before
836	every use of yytoken, and add comments explaining this approach.
837	* tests/conflicts.at (%error-verbose and consistent errors):
838	Extend to test yychar manipulation with lalr1.cc.
839
8402010-11-07  Joel E. Denny  <joeldenny@joeldenny.org>
841
842	yysyntax_error: fix for consistent error with lookahead.
843	* NEWS (2.5): Document.
844	* data/yacc.c (yysyntax_error): In a verbose syntax error
845	message while in a consistent state with a default action (which
846	must be an error action given that yysyntax_error is being
847	invoked), continue to drop the expected token list, but don't
848	drop the unexpected token unless there actually is no lookahead.
849	Moreover, handle that internally instead of returning 1 to tell
850	the caller to do it.  With that meaning of 1 gone, renumber
851	return codes more usefully.
852	(yyparse, yypush_parse): Update yysyntax_error usage.  Most
853	importantly, set yytoken to YYEMPTY when there's no lookahead.
854	* data/glr.c (yyreportSyntaxError): As in yacc.c, don't drop the
855	unexpected token unless there actually is no lookahead.
856	* data/lalr1.cc (yy::parser::parse): If there's no lookahead,
857	set yytoken to yyempty_ before invoking yysyntax_error_.
858	(yy::parser::yysyntax_error_): Again, don't drop the unexpected
859	token unless there actually is no lookahead.
860	* data/lalr1.java (YYParser::parse): If there's no lookahead,
861	set yytoken to yyempty_ before invoking yysyntax_error.
862	(YYParser::yysyntax_error): Again, don't drop the unexpected
863	token unless there actually is no lookahead.
864	* tests/conflicts.at (%error-verbose and consistent
865	errors): Extend test group to further reveal how the previous
866	use of the simple "syntax error" message was too general.  Test
867	yacc.c, glr.c, lalr1.cc, and lalr1.java.  No longer an expected
868	failure.
869	* tests/java.at (AT_JAVA_COMPILE, AT_JAVA_PARSER_CHECK): Move
870	to...
871	* tests/local.at: ... here.
872	(_AT_BISON_OPTION_PUSHDEFS): Push AT_SKEL_JAVA_IF definition.
873	(AT_BISON_OPTION_POPDEFS): Pop it.
874	(AT_FULL_COMPILE): Extend to handle Java.
875
8762010-11-07  Joel E. Denny  <joeldenny@joeldenny.org>
877
878	yysyntax_error: more preparation for readability of next patch.
879	There are no behavioral changes here.
880	* data/glr.c (yyreportSyntaxError): Reorganize.
881	* data/lalr1.cc (yy::parser::yysyntax_error_): Reorganize.
882	* tests/conflicts.at (%error-verbose and consistent errors):
883	Reorganize.
884
8852010-11-07  Joel E. Denny  <joeldenny@joeldenny.org>
886
887	yysyntax_error: prepare for readability of next patches.
888	These are purely whitespace changes that result in ugly code
889	but that make the next couple of patches much easier to read.
890	* data/glr.c (yyreportSyntaxError): Reindent.
891	* data/lalr1.cc (yy::parser::yysyntax_error_): Reindent.
892	* data/lalr1.java (YYParser::yysyntax_error): Reindent.
893	* data/yacc.c (yysyntax_error): Reindent.
894
8952010-10-31  Joel E. Denny  <joeldenny@joeldenny.org>
896
897	yysyntax_error: improve invocation readability.
898	* data/yacc.c (yyparse, yypush_parse): For yysyntax_error
899	invocation, get rid of the while loop, which is misleading
900	because there are really at most two iterations.
901
9022010-10-31  Joel E. Denny  <joeldenny@joeldenny.org>
903
904	* ChangeLog: Correct some errors in previous entries.
905
9062010-10-17  Joel E. Denny  <joeldenny@joeldenny.org>
907
908	maint: re-anchor all .gitignore entries.
909	* bootstrap: Copy from gnulib's latest for the fix to
910	automatically anchor entries it constructs.
911	* gnulib: Update to latest just so it has the same bootstrap.
912	* .gitignore, build-aux/.gitignore, doc/.gitignore:
913	* lib/.gitignore, m4/.gitignore, po/.gitignore:
914	* runtime-po/.gitignore: Re-anchor all entries.
915
9162010-10-08  Paul Eggert  <eggert@cs.ucla.edu>
917
918	Fix portability problem on OpenBSD 4.7.
919
920	Jim Meyering reported this in
921	<http://lists.gnu.org/archive/html/bug-bison/2010-10/msg00007.html>.
922	* data/yacc.c: Use EXIT_SUCCESS as a witness for stdlib.h,
923	not _STDLIB_H.  EXIT_SUCCESS has been defined by the standard
924	for quite some time.
925	* src/parse-gram.c, src/parse-gram.h: Regenerate.
926	* tests/regression.at: Tamper with the renamed witness.
927
928	Adjust to recent changes to gnulib bootstrap.
929
930	* .cvsignore, build-aux/.cvsignore, doc/.cvsignore, etc/.cvsignore:
931	* examples/calc++/.cvsignore, lib/.cvsignore, m4/.cvsignore:
932	* po/.cvsignore, runtime-po/.cvsignore, src/.cvsignore:
933	* tests/.cvsignore: Remove; I don't use CVS to maintain Bison
934	anymore and don't know of anybody else who does.  If someone needs
935	these files, they can resurrect them.
936	* .gitignore, build-aux/.gitignore, doc/.gitignore, lib/.gitignore:
937	* m4/.gitignore, po/.gitignore, runtime-po/.gitignore:
938	Omit leading '/', since bootstrap omits it.
939	Adjust file names to match current contents better.
940	* bootstrap: Sync from gnulib: this contains the new gnulib_mk_hook
941	installed just for us.
942	* bootstrap.conf (excluded_files): Don't exclude codeset.m4,
943	glibc21.m4, inttypes_h.m4, size_max.m4, xsize.m4, as they are now
944	needed somehow.  Don't have time to look into why.
945	(gnulib_modules): Change malloc to malloc-gnu.  Do we really assume
946	the GNU malloc behavior, where malloc (0) != NULL unless we're
947	out of storage?  If not, we can omit malloc-gnu; but for now I left
948	it in to be safe.
949	(vc_ignore): Remove.
950	* README-hacking: Renamed from HACKING, since gnulib bootstrap now
951	uses that convention.
952
9532010-08-05  Joel E. Denny  <joeldenny@joeldenny.org>
954
955	Version 2.4.3.
956	* NEWS (2.4.3): Set date.
957
9582010-08-04  Joel E. Denny  <joeldenny@joeldenny.org>
959
960	maint: add gettext version to release announcements.
961	Suggested by Paul Hilfinger at
962	<http://lists.gnu.org/archive/html/bison-patches/2010-07/msg00019.html>
963	<http://lists.gnu.org/archive/html/bison-patches/2010-08/msg00002.html>.
964	* cfg.mk (bootstrap-tools): Add gettext.
965
9662010-08-04  Joel E. Denny  <joeldenny@joeldenny.org>
967
968	doc: fix -W and %expect documentation some.
969	* NEWS (2.4.3): Mention that there are documentation fixes.
970	* doc/bison.texinfo (Expect Decl): Make it clear that %expect
971	turns conflicts into errors not warnings.
972	(Shift/Reduce): Likewise.
973	(Bison Options): Don't mention -Wsyntax.  It doesn't exist.
974
9752010-08-01  Joel E. Denny  <joeldenny@joeldenny.org>
976
977	-Werror: fix for rules useless in parser after conflicts.
978	* NEWS (2.4.3): Document fix.
979	* src/complain.c (error_message): Extend to handle incomplete
980	error messages so warn and warn_at can be used in more cases.
981	* src/gram.c (grammar_rules_useless_report): Use warn_at so that
982	-Werror is always obeyed.
983	* src/reduce.c (reduce_print): Use warn so that the "warnings
984	being treated as errors" message is printed consistently before
985	the first warning message.  This makes testing easier.
986	* tests/local.at (AT_BISON_WERROR_MSG): New macro.
987	(AT_BISON_CHECK_NO_XML): Extend to check -Werror and
988	--warnings=error when warnings appear in bison's stderr.
989
9902010-07-29  Joel E. Denny  <joeldenny@joeldenny.org>
991
992	maint: enable gnits only at stable releases.
993	* configure.ac (AM_INIT_AUTOMAKE): Underscore or dash in a
994	version string should disable gnits.  Explain in comments.
995
9962010-07-28  Joel E. Denny  <joeldenny@joeldenny.org>
997
998	i18n: update.
999	* po/POTFILES.in: Add src/graphviz.c.
1000
10012010-07-28  Joel E. Denny  <joeldenny@joeldenny.org>
1002
1003	i18n: fix for gnulib.
1004	* po/POTFILES.in: Add remaining gnulib files that have
1005	translatable strings.
1006
10072010-07-25  Joel E. Denny  <joeldenny@joeldenny.org>
1008
1009	maint: use announce-gen's new --mail-headers.
1010	* HACKING (Announce): Update instructions.
1011	* cfg.mk (announcement_Cc_): Define.
1012	* configure.ac (AM_GNU_GETTEXT_VERSION): Update to 0.18 as
1013	required by latest gnulib.
1014	* gnulib: Update to latest.
1015
10162010-07-24  Joel E. Denny  <joeldenny@joeldenny.org>
1017
1018	tests: handle Valgrind that complains about >&-.
1019	* tests/output.at (AT_CHECK_OUTPUT): Extend to accept pre-tests.
1020	(Output files: -dv >&-): Skip test group if running
1021	maintainer-check-valgrind.
1022
10232010-06-17  Paul Eggert  <eggert@cs.ucla.edu>
1024
1025	Update from GFDL GFDL 1.2 to 1.3.
1026	* doc/bison.texinfo: Update GFDL version number.
1027	* doc/fdl.texi: Update to version 1.3, taken from:
1028	http://www.gnu.org/licenses/fdl.texi
1029
10302010-06-17  Paul Eggert  <eggert@cs.ucla.edu>
1031
1032	Do not use date ranges in copyright notices.
1033	See http://www.gnu.org/prep/maintain/maintain.html#Copyright-Notices
1034
1035	* HACKING, Makefile.am, NEWS, PACKAGING, README, README-alpha:
1036	* TODO, bootstrap, bootstrap.conf:
1037	* build-aux/update-b4-copyright, cfg.mk, configure.ac:
1038	* data/README, data/bison.m4, data/c++-skel.m4, data/c++.m4:
1039	* data/c-skel.m4, data/c.m4, data/glr.c, data/glr.cc:
1040	* data/java-skel.m4, data/java.m4, data/lalr1.cc:
1041	* data/lalr1.java, data/location.cc:
1042	* data/xslt/bison.xsl:
1043	* data/xslt/xml2dot.xsl, data/xslt/xml2text.xsl:
1044	* data/xslt/xml2xhtml.xsl, data/yacc.c, djgpp/Makefile.maint:
1045	* djgpp/README.in, djgpp/config.bat, djgpp/config.sed:
1046	* djgpp/config.site, djgpp/config_h.sed, djgpp/djunpack.bat:
1047	* djgpp/subpipe.c, djgpp/subpipe.h:
1048	* djgpp/testsuite.sed, doc/bison.texinfo:
1049	* doc/refcard.tex, etc/README, etc/bench.pl.in:
1050	* examples/calc++/Makefile.am, examples/extexi:
1051	* lib/abitset.c, lib/abitset.h:
1052	* lib/bbitset.h, lib/bitset.c, lib/bitset.h:
1053	* lib/bitset_stats.c, lib/bitset_stats.h, lib/bitsetv-print.c:
1054	* lib/bitsetv-print.h, lib/bitsetv.c, lib/bitsetv.h:
1055	* lib/ebitset.c, lib/ebitset.h, lib/get-errno.c:
1056	* lib/get-errno.h, lib/lbitset.c, lib/lbitset.h:
1057	* lib/libiberty.h, lib/main.c, lib/timevar.c:
1058	* lib/timevar.def, lib/timevar.h, lib/vbitset.c:
1059	* lib/vbitset.h, lib/yyerror.c, m4/bison-i18n.m4:
1060	* m4/c-working.m4, m4/cxx.m4, m4/subpipe.m4, m4/timevar.m4:
1061	* src/AnnotationList.c, src/AnnotationList.h:
1062	* src/InadequacyList.c, src/InadequacyList.h, src/LR0.c:
1063	* src/LR0.h, src/Sbitset.c, src/Sbitset.h, src/assoc.c:
1064	* src/assoc.h, src/closure.c, src/closure.h, src/complain.c:
1065	* src/complain.h, src/conflicts.c, src/conflicts.h:
1066	* src/derives.c, src/derives.h, src/files.c, src/files.h:
1067	* src/flex-scanner.h, src/getargs.c, src/getargs.h:
1068	* src/gram.c, src/gram.h, src/graphviz.c, src/ielr.c:
1069	* src/ielr.h, src/lalr.c, src/lalr.h:
1070	* src/location.c, src/location.h, src/main.c:
1071	* src/muscle-tab.c, src/muscle-tab.h, src/named-ref.c:
1072	* src/named-ref.h, src/nullable.c, src/nullable.h:
1073	* src/output.c, src/output.h, src/parse-gram.y:
1074	* src/print-xml.c, src/print-xml.h, src/print.c, src/print.h:
1075	* src/print_graph.c, src/print_graph.h, src/reader.c:
1076	* src/reader.h, src/reduce.c, src/reduce.h, src/relation.c:
1077	* src/relation.h, src/scan-code.h, src/scan-code.l:
1078	* src/scan-gram.h, src/scan-gram.l, src/scan-skel.h:
1079	* src/scan-skel.l, src/state.c, src/state.h, src/symlist.c:
1080	* src/symlist.h, src/symtab.c, src/symtab.h, src/system.h:
1081	* src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h:
1082	* tests/actions.at, tests/atlocal.in, tests/c++.at:
1083	* tests/calc.at, tests/conflicts.at, tests/cxx-type.at:
1084	* tests/existing.at, tests/glr-regression.at:
1085	* tests/headers.at, tests/input.at, tests/java.at:
1086	* tests/local.at, tests/named-refs.at:
1087	* tests/output.at, tests/push.at, tests/reduce.at:
1088	* tests/regression.at, tests/sets.at, tests/skeletons.at:
1089	* tests/synclines.at, tests/testsuite.at, tests/torture.at:
1090	* data/Makefile.am, data/location.cc, doc/Makefile.am, src/Makefile.am:
1091	* tests/Makefile.am, lib/Makefile.am, examples/Makefile.am:
1092	* etc/Makefile.am:
1093	Don't use date ranges in copyright notices.
1094
10952010-05-11  Akim Demaille  <demaille@gostai.com>
1096
1097	lalrl1.cc: give a chance to user defined YYLLOC_DEFAULT.
1098	* data/lalr1.cc (YYLLOC_DEFAULT): Move its definition from the
1099	header file to the implementation file, after the user %code
1100	sections.
1101	* NEWS (2.5): Document this.
1102
11032010-05-07  Akim Demaille  <demaille@gostai.com>
1104
1105	c++: use YYRHSLOC.
1106	* data/lalr1.cc (YYRHSLOC): New.
1107	(YYLLOC_DEFAULT): Use it.
1108	* data/glr.cc: If location_type was user defined, do not include
1109	location.hh, and do not produce location.hh and position.hh.
1110	* tests/calc.at (YYLLOC_DEFAULT): Use YYRHSLOC.
1111	Check that glr.cc supports user defined location_type.
1112	* NEWS: Document this.
1113
11142010-05-10  Akim Demaille  <demaille@gostai.com>
1115
1116	doc: fix lalr1.cc documentation.
1117	* doc/bison.texinfo (C++ Scanner Interface): Fix yylex signature.
1118	(C++ Bison Interface): Fix lalr1.cc skeleton name.
1119	(C++ Parser Interface): Fix semantic_type and location_type names.
1120	Document yy::parser::token.
1121	Reported by Jerry Quinn.
1122
11232010-05-04  Akim Demaille  <demaille@gostai.com>
1124
1125	lalr1.cc: don't generate location.hh when location_type is defined
1126	* data/bison.m4 (b4_percent_define_use): New.
1127	(b4_percent_define_get): Use it.
1128	Accept a default value.
1129	* data/c++.m4: Do not provide a default value for the %define
1130	variable location_type, rather, use b4_percent_define_get with a
1131	default argument where its value is needed.
1132	* data/lalr1.cc: Do not load location.cc (which outputs both
1133	location.hh and position.hh) if the user defined location_type.
1134	Do not include location.hh either.
1135	* data/glr.cc: Likewise.
1136
11372010-05-04  Akim Demaille  <demaille@gostai.com>
1138
1139	lalr1.cc: location_type: make sure we don't depend on loc.(begin|end).
1140	* tests/calc.at (Span): Instead of begin/end, as in the built-in
1141	location class, use first and last.
1142	Define YYLLOC_DEFAULT to adjust to these changes.
1143	* tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Adjust to the
1144	location_type changes.
1145
11462010-05-04  Akim Demaille  <demaille@gostai.com>
1147
1148	tests: enhance AT_SYNCLINES_COMPILE.
1149	* tests/synclines.at (AT_TEST_SYNCLINE): Move GCC 4.5 protection
1150	into...
1151	(AT_SYNCLINES_COMPILE): here.
1152	Add more distcc patterns.
1153
11542010-05-01  Joel E. Denny  <joeldenny@joeldenny.org>
1155
1156	tests: fix maintainer-xml-check.
1157	* data/xslt/xml2dot.xsl (xsl:template match="bison-xml-report"):
1158	Update output to include comments now produced by --graph.
1159	(xsl:template match="automaton"): As for --graph, name the
1160	digraph after the grammar file.
1161	* src/print-xml.c (escape_bufs): Enlarge array.
1162	(print_xml): Add bug-report and url attributes to
1163	bison-xml-report element.
1164
11652010-05-01  Joel E. Denny  <joeldenny@joeldenny.org>
1166
1167	In DOT output, convert from "/*" comments to "//" comments.
1168	This handles the possibility that a "*/" might appear in
1169	variable portions of those comments at some point in the future.
1170	* src/graphviz.c (start_graph): Implement.
1171
11722010-04-30  Joel E. Denny  <joeldenny@joeldenny.org>
1173
1174	Document that undefined %prec identifier warnings will remain.
1175	* NEWS (2.4.3): Here.
1176	(2.4.2): Here.
1177
11782010-04-30  Joel E. Denny  <joeldenny@joeldenny.org>
1179
1180	Revert 2009-12-30 change for undefined %prec token complaints.
1181	That is, keep them as warnings because that should be sufficient
1182	to satisfy POSIX without creating backward compatibility issues.
1183	Suggested by Richard Stallman at
1184	<http://lists.gnu.org/archive/html/bison-patches/2010-03/msg00033.html>.
1185	* NEWS (2.5): Remove mention of complaint.
1186	* src/reader.c (grammar_rule_check): Convert complaint back to
1187	warning.
1188	* tests/input.at (%prec's token must be defined): Update.
1189
11902010-04-25  Joel E. Denny  <joeldenny@joeldenny.org>
1191
1192	build: don't require src/bison during bootstrap.
1193	Suggested by Eric Blake at
1194	<http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00003.html>.
1195	* bootstrap.conf (bootstrap_epilogue): New function to make sure
1196	src/parse-gram.[ch] are stamped later than src/parse-gram.y.
1197
11982010-04-25  Joel E. Denny  <joeldenny@joeldenny.org>
1199
1200	i18n: fix untranslatable string.
1201	Reported by Goran Uddeborg at
1202	<http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00000.html>.
1203	* src/muscle-tab.c (muscle_percent_define_insert): Here.
1204
12052010-04-13  Akim Demaille  <demaille@gostai.com>
1206
1207	tests: calc: minor refactoring.
1208	* tests/calc.at (_AT_DATA_CALC_Y): Simplify yylex.
1209
12102010-04-13  Akim Demaille  <demaille@gostai.com>
1211
1212	tests: calc: simplify location management.
1213	* tests/local.at (AT_LOC_PUSHDEF, AT_LOC_POPDEF): New.
1214	(_AT_BISON_OPTION_PUSHDEFS, AT_BISON_OPTION_POPDEFS): Use them to
1215	define the appropriate AT_LOC accessors.
1216	* tests/calc.at: Use AT_LOC accessors.
1217
12182010-04-13  Akim Demaille  <demaille@gostai.com>
1219
1220	test location_type.
1221	* tests/local.at (_AT_BISON_OPTION_PUSHDEFS):
1222	Define AT_LOCATION_TYPE_IF.
1223	(_AT_BISON_OPTION_POPDEFS): Undefine AT_LOCATION_TYPE_IF.
1224	* tests/calc.at (_AT_DATA_CALC_Y): When %define location_type is
1225	used, provide a user location type and use it.
1226	(Simple LALR1 C++ Calculator): Add a test case for location_type.
1227
12282010-04-13  Akim Demaille  <demaille@gostai.com>
1229
1230	tests: check fclose's return value.
1231	* tests/calc.at (_AT_DATA_CALC_Y): Check fclose's return status.
1232
12332010-04-13  Akim Demaille  <demaille@gostai.com>
1234
1235	tests: don't depend on the actual location type.
1236	* tests/calc.at: Use yy::parser::location_type rather than
1237	yy::location, since the former is always right, and might point to
1238	another type than the latter.
1239
12402010-04-13  Akim Demaille  <demaille@gostai.com>
1241
1242	formatting changes.
1243	* tests/calc.at: Formatting changes.
1244
12452010-04-13  Akim Demaille  <demaille@gostai.com>
1246
1247	lalr1.cc: remove useless forward declaration.
1248	* data/lalr1.cc: Include location.hh before stack.hh.
1249	Remove the useless forward declarations of position and location.
1250	Reported by Chris Morley.
1251	* data/glr.cc: Likewise.
1252
12532010-04-11  Joel E. Denny  <joeldenny@joeldenny.org>
1254
1255	* NEWS (2.4.3): Mention fix for Sun Studio C++.
1256
12572010-04-10  Joel E. Denny  <joeldenny@joeldenny.org>
1258
1259	tests: fix for newer Sun Studio C++.
1260	Reported by Dagobert Michelsen at
1261	<http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00023.html>.
1262	* THANKS (Dagobert Michelsen): Add.
1263	* configure.ac (AC_PREREQ): Set to 2.64 so we get the latest
1264	Autoconf macro for handling the restrict keyword.
1265	* gnulib: Update to latest, which no longer overrides that macro
1266	from Autoconf.
1267
12682010-04-03  Joel E. Denny  <jdenny@ces.clemson.edu>
1269
1270	portability: fix pointer arithmetic to conform to C standard.
1271	Reported by Tys Lefering at
1272	<http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00035.html>.
1273	This fix is already implemented in glr.c and does not apply to
1274	lalr1.java.
1275	* data/lalr1.cc (yy::parser::parse): Increase size of
1276	yyerror_range and adjust subscripting so you don't have to
1277	subtract one from the beginning of the array.
1278	* data/yacc.c (b4_declare_parser_state_variables,
1279	yyparse, yypush_parse): Likewise.
1280
12812010-04-05  Akim Demaille  <demaille@gostai.com>
1282
1283	remove useless include.
1284	* src/graphviz.h: Don't include stdbool.h.
1285
12862010-04-05  Akim Demaille  <demaille@gostai.com>
1287
1288	graph: sign the output file.
1289	* src/graphviz.c (start_graph): Issue comments about Bison.
1290	Suggested by Tys Lefering.
1291
12922010-03-31  Joel E. Denny  <jdenny@ces.clemson.edu>
1293
1294	portability: fix test suite for GCC 4.5's new #error message.
1295	Reported by Tys Lefering at
1296	<http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00030.html>.
1297	* NEWS (2.4.3): Mention.
1298	* tests/synclines.at (AT_TEST_SYNCLINE): Implement.
1299
13002010-03-30  Akim Demaille  <demaille@gostai.com>
1301
1302	fix comments.
1303	* src/graphviz.h: Add missing license notice.
1304	Document.
1305
13062010-03-25  Akim Demaille  <demaille@gostai.com>
1307
1308	tests: fix 250: parse.error=verbose overflow.
1309	* tests/regression.at (parse.error=verbose overflow): Avoid the
1310	double inclusion of stdlib.h as it triggers hard errors.
1311
13122010-03-23  Joel E. Denny  <jdenny@ces.clemson.edu>
1313
1314	portability: fix for BSD make.
1315	Reported by Johan van Selst at
1316	<http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00016.html>.
1317	* tests/Makefile.am ($(TESTSUITE)): Qualify package.m4 in
1318	this dependency list as in package.m4's target rule.
1319
13202010-03-23  Joel E. Denny  <jdenny@ces.clemson.edu>
1321
1322	portability: fix spawning on at least FreeBSD 8 and FreeBSD 9.
1323	Reported by Johan van Selst at
1324	<http://lists.gnu.org/archive/html/bug-bison/2010-03/msg00014.html>.
1325	* NEWS (2.4.3): New.
1326	* THANKS (Johan van Selst): Add.
1327	* gnulib: Update to latest.
1328
13292010-03-20  Joel E. Denny  <jdenny@ces.clemson.edu>
1330
1331	maint: update for changes to gnulib's announce-gen.
1332	* HACKING (Announce): RELEASE_TYPE=major must now be written
1333	RELEASE_TYPE=stable.
1334
13352010-03-20  Joel E. Denny  <jdenny@ces.clemson.edu>
1336
1337	Version 2.4.2.
1338	* NEWS (2.4.2): Set version and date.  For the recent test suite
1339	portability fixes, don't be so optimistic about their success
1340	given the lack of feedback on the affected platforms.
1341
13422010-02-22  Joel E. Denny  <jdenny@ces.clemson.edu>
1343
1344	tests: fix maintainer-xml-check for recent changes.
1345	* tests/output.at (AT_CHECK_CONFLICTING_OUTPUT): Use
1346	AT_BISON_CHECK_NO_XML rather than AT_BISON_CHECK because an
1347	output file whose name conflicts with a previous output file
1348	is now never generated.
1349
13502010-02-22  Joel E. Denny  <jdenny@ces.clemson.edu>
1351
1352	portability: fix several issues with M4 subprocess.
1353
1354	M4's output pipe was not being drained upon fatal errors during
1355	scan_skel.  As a result, broken-pipe messages from M4 were seen
1356	on at least AIX, HP-UX, Solaris, and RHEL4, and this caused a
1357	failure in the test suite.  The problem was that, on platforms
1358	where the default disposition for SIGPIPE is ignore instead of
1359	terminate, M4 sometimes saw fwrite fail with errno=EPIPE and
1360	then reported it.  However, there's some sort of race condition,
1361	because the new test group occasionally succeeded.
1362	Reported by Albert Chin at
1363	<http://lists.gnu.org/archive/html/bug-bison/2010-02/msg00004.html>.
1364
1365	There were also problems with the test suite livelocking on
1366	Tru64 5.1b.  Reported by Didier Godefroy at
1367	<http://lists.gnu.org/archive/html/bug-bison/2009-05/msg00005.html>.
1368	Switching to create_pipe_bidi suggested by Akim Demaille.
1369
1370	To attempt to solve both of these problems, switch to gnulib's
1371	create_pipe_bidi and register M4 process as a slave.  Along the
1372	way, clean up file name conflict handling, which was affected by
1373	the broken-pipe problem before the switch.
1374	* NEWS (2.4.2): Document.
1375	* THANKS (Didier Godefroy): Add.
1376	* bootstrap.conf (gnulib_modules): Add pipe.
1377	* gnulib: Update to latest to make sure we have all the latest
1378	fixes.
1379	* lib/Makefile.am (libbison_a_SOURCES): Remove subpipe.h and
1380	subpipe.c.
1381	* po/POTFILES.in (lib/subpipe.c): Remove.
1382	* src/files.c (compute_output_file_names): Update invocations
1383	of output_file_name_check.
1384	(output_file_name_check): In the case that the grammar file
1385	would be overwritten, use complain instead of fatal, but replace
1386	the output file name with /dev/null.  Use the /dev/null solution
1387	for the case of two conflicting output files as well because it
1388	seems safer in case Bison one day tries to open both files at
1389	the same time.
1390	* src/files.h (output_file_name_check): Update prototype.
1391	* src/output.c (output_skeleton): Use create_pipe_bidi and
1392	wait_subprocess.  Assert that scan_skel completely drains the
1393	pipe.
1394	* src/scan-skel.l (at_directive_perform): Update
1395	output_file_name_check invocation.
1396	* tests/output.at (AT_CHECK_CONFLICTING_OUTPUT): Check that the
1397	grammar file actually isn't overwritten.
1398	(Conflicting output files: -o foo.y): Update expected output.
1399	* tests/skeletons.at (Fatal errors but M4 continues producing
1400	output): New test group.
1401
14022010-02-04  Joel E. Denny  <jdenny@ces.clemson.edu>
1403
1404	Update POTFILES.
1405	* HACKING (Release Procedure): Add reminder about keeping
1406	POTFILES files up-to-date.
1407	* po/POTFILES.in (src/muscle-tab.c, src/scan-skel.l): Add.
1408
14092010-02-01  Joel E. Denny  <jdenny@clemson.edu>
1410
1411	Code cleanup.
1412	* tests/atlocal.in (abs_top_srcdir): Remove shell variable,
1413	which is already defined in atconfig.
1414
14152010-01-21  Joel E. Denny  <jdenny@clemson.edu>
1416
1417	* cfg.mk (gnulib_dir): Assume gnulib is a subdirectory.
1418
14192010-01-21  Joel E. Denny  <jdenny@clemson.edu>
1420
1421	maint: automate PACKAGE_COPYRIGHT_YEAR update, and update it.
1422	* HACKING (Release Procedure): Update notes on copyright years.
1423	* Makefile.am (update-package-copyright-year): New target rule.
1424	* build-aux/update-package-copyright-year: New file.
1425	* cfg.mk (update-copyright): Add update-package-copyright-year
1426	as a dependency.
1427
14282010-01-19  Joel E. Denny  <jdenny@clemson.edu>
1429
1430	* bootstrap: Import improvements from latest gnulib.
1431
14322010-01-19  Joel E. Denny  <jdenny@clemson.edu>
1433
1434	build: require Automake 1.11.1 to avoid a security flaw.
1435	* HACKING (Release Procedure): Don't document Automake security
1436	flaw here.
1437	* configure.ac (AM_INIT_AUTOMAKE): Require 1.11.1, and explain
1438	why here.
1439
14402010-01-19  Joel E. Denny  <jdenny@clemson.edu>
1441
1442	gnulib: update to latest.
1443
14442010-01-19  Joel E. Denny  <jdenny@clemson.edu>
1445
1446	ChangeLog (2006-09-15): add Odd Arild Olsen's role for push.c.
1447
14482010-01-15  Joel E. Denny  <jdenny@clemson.edu>
1449
1450	Thank the developer of the initial push parser implementation.
1451	This unfortunate oversight is several years old.
1452	* THANKS (Odd Arild Olsen): Add.
1453
14542010-01-04  Joel E. Denny  <jdenny@clemson.edu>
1455
1456	Fix some comments concerning LR(0) versus LALR(1).
1457
1458	Stop equating LR(0) with nondeterminism and LALR(1) with
1459	determinism.  That is, if all states are consistent, then LR(0)
1460	tables are deterministic.  On the other hand, LALR(1) tables
1461	might be nondeterministic before conflict resolution, and GLR
1462	permits LALR(1) tables to remain nondeterministic.
1463	* src/LR0.c, src/LR0.h: Here.
1464	* src/lalr.c, src/lalr.h: Here.
1465	* src/main.c (main): Here.
1466	* src/state.c, src/state.h: Here.
1467
1468	* src/ielr.h (ielr): In preconditions, expect LR(0) not LALR(1)
1469	parser tables.
1470
14712010-01-04  Joel E. Denny  <jdenny@clemson.edu>
1472
1473	maint: run "make update-copyright"
1474
14752009-12-30  Joel E. Denny  <jdenny@clemson.edu>
1476
1477	POSIX: complain if %prec's token was not defined.
1478	* NEWS (2.5): Document.
1479	* src/reader.c (grammar_rule_check): Convert warning to
1480	complaint.
1481	* tests/input.at (%prec's token must be defined): Update.
1482
14832009-12-30  Joel E. Denny  <jdenny@clemson.edu>
1484
1485	POSIX: warn if %prec's token was not defined.
1486	Reported by Florian Krohm at
1487	<http://lists.gnu.org/archive/html/bug-bison/2009-12/msg00005.html>.
1488	* NEWS (2.4.2): Document.
1489	* src/reader.c (grammar_rule_check): Implement.
1490	(grammar_current_rule_prec_set): Add comments explaining that we
1491	here assume a %prec identifier is a token, but we still manage
1492	to support POSIX.
1493	* tests/input.at (%prec's token must be defined): New test
1494	group.
1495
14962009-12-31  Joel E. Denny  <jdenny@clemson.edu>
1497
1498	* HACKING (Release Procedure): Recommend a secure automake.
1499
15002008-12-11  Akim Demaille  <demaille@gostai.com>
1501
1502	Propagate i18n changes into glr.c.
1503	* data/glr.c (yyreportSyntaxError): Use "switch" instead of
1504	building the error message format dynamically.
1505	* data/lalr1.java: Formatting changes.
1506
15072009-12-22  Joel E. Denny  <jdenny@clemson.edu>
1508
1509	Port small part of master's 11707b2b so future ports are easier.
1510	* data/lalr1.java (YYParser::yysyntax_error): Untabify.
1511
15122008-12-11  Akim Demaille  <demaille@gostai.com>
1513
1514	Simplify the i18n of the error messages.
1515	* data/lalr1.cc: Comment changes.
1516
15172008-11-11  Akim Demaille  <demaille@gostai.com>
1518
1519	Prefer M4 to CPP.
1520	* data/lalr1.cc: Use b4_error_verbose_if instead of #if
1521	YYERROR_VERBOSE.
1522
15232008-11-11  Akim Demaille  <demaille@gostai.com>
1524
1525	Support i18n of the parse error messages.
1526	* TODO (lalr1.cc/I18n): Remove.
1527	* data/lalr1.cc (yysyntax_error_): Support the translation of the
1528	error messages, as done in yacc.c.
1529	Stay within the yy* pseudo namespace.
1530
15312009-12-22  Joel E. Denny  <jdenny@clemson.edu>
1532
1533	Port small part of master's 8901f32e so future ports are easier.
1534	* data/lalr1.cc (yy::parser::yysyntax_error_): Always add second
1535	argument, but name it in the function definition only when
1536	verbose error messages are enabled and it'll thus be used.
1537	(yy::parser::parse): Update use of yysyntax_error_.
1538
15392009-12-29  Joel E. Denny  <jdenny@clemson.edu>
1540
1541	portability: `<' and `>' are not always defined on addresses.
1542	Specifically, don't sort objects by their memory addresses when
1543	they're not allocated in the same array or other object.  Though
1544	I haven't found a test case where that fails on my platform, C
1545	says the behavior is undefined.
1546	* src/AnnotationList.c (AnnotationList__insertInto): Remove
1547	FIXME.  Use new id field of InadequacyList nodes rather than
1548	their memory addresses when sorting.
1549	(AnnotationList__compute_from_inadequacies): Add
1550	inadequacy_list_node_count argument to pass to
1551	InadequacyList__new_conflict.
1552	* src/AnnotationList.h
1553	(AnnotationList__compute_from_inadequacies): Update prototype
1554	and documentation for new argument.
1555	* src/InadequacyList.c (InadequacyList__new_conflict): Add
1556	node_count argument and use it to assign a unique ID.
1557	* src/InadequacyList.h (InadequacyListNodeCount): New typedef.
1558	(InadequacyList): Add id field.
1559	(InadequacyList__new_conflict): Update prototype and
1560	documentation for new argument.
1561	* src/ielr.c (ielr_compute_annotation_lists): Update
1562	AnnotationList__compute_from_inadequacies invocation.
1563
15642009-12-20  Joel E. Denny  <jdenny@clemson.edu>
1565
1566	Fix handling of yychar manipulation in user semantic actions.
1567	The problem was that yacc.c didn't always update the yychar
1568	translation afterwards.  However, other skeletons appear to be
1569	fine.  glr.c appears to already translate yychar before every
1570	use.  lalr1.cc does not define yychar and does not document its
1571	replacement, yyla, for users.  It does provide yyclearin, but
1572	that does not manipulate yyla and thus requires no translation
1573	update.  In lalr1.java, yychar is out of scope during semantic
1574	actions.
1575	* NEWS (2.5): Document.
1576	* data/yacc.c (YYBACKUP): Don't bother translating yychar into
1577	yytoken here.
1578	(yyparse, yypush_parse): Instead, translate before every use of
1579	yytoken, and add comments explaining this approach.
1580	* tests/actions.at (Destroying lookahead assigned by semantic
1581	action): New test group checking that translation happens before
1582	lookahead destructor calls at parser return.  Previously,
1583	incorrect destructors were called.
1584	* tests/conflicts.at (%error-verbose and consistent
1585	errors): New test group checking that translation happens at
1586	syntax error detection before the associated verbose error
1587	message and the associated lookahead destructor calls.  While
1588	the destructor call is fixed by this patch, the verbose error
1589	message is currently incorrect due to another bug (see
1590	comments in test group), so this is an expected failure for now.
1591
15922009-12-21  Joel E. Denny  <jdenny@clemson.edu>
1593
1594	YYFAIL: warn about uses and remove from lalr1.java.
1595	* NEWS (2.5): Document.
1596	* data/lalr1.java (YYParser::YYFAIL): Rename to YYERRLAB,
1597	and make it private.  Update all uses.
1598	* src/scan-code.l (SC_RULE_ACTION): Implement warning.
1599
16002009-12-21  Joel E. Denny  <jdenny@clemson.edu>
1601
1602	YYFAIL: deprecate.
1603	* NEWS (2.4.2): Document deprecation and the phase-out plan.
1604	* data/lalr1.java (YYParser::YYFAIL): Add comment about
1605	deprecation.
1606	* data/yacc.c (YYFAIL): Likewise, and suppress warnings about
1607	YYFAIL from GCC cpp's -Wunused-macros.
1608	* doc/bison.texinfo (Java Action Features): Remove YYFAIL
1609	documentation.
1610	(LocalWords): Remove YYFAIL.
1611
16122009-12-17  Joel E. Denny  <jdenny@clemson.edu>
1613
1614	Code cleanup.
1615	* src/symtab.c, src/symtab.h (symbol_class_get_string): Remove
1616	function, which is no longer used.
1617
16182009-12-16  Joel E. Denny  <jdenny@clemson.edu>
1619
1620	Add gcc's -Wundef to test suite and fix another warning from it.
1621	* NEWS (2.4.2): Update description of -Wundef fix.
1622	* configure.ac (WARN_CXXFLAGS_TEST): New substitution.
1623	(WARN_CFLAGS_TEST): New substitution.
1624	* data/glr.c: Avoid warning about __STRICT_ANSI__.
1625	* tests/atlocal.in (CFLAGS): Use WARN_CFLAGS_TEST instead of
1626	WARN_CFLAGS.
1627	(NO_WERROR_CFLAGS): Likewise.
1628	(CXXFLAGS): Use WARN_CXXFLAGS_TEST instead of WARN_CXXFLAGS.
1629
16302009-12-16  Joel E. Denny  <jdenny@clemson.edu>
1631
1632	* data/yacc.c: Reformat m4 a little.
1633
16342009-12-16  Joel E. Denny  <jdenny@clemson.edu>
1635
1636	Document gcc -Wundef fix.
1637	* NEWS (2.4.2): Here.
1638	* THANKS (Jonathan Nieder): Add.
1639
16402009-12-15  Jonathan Nieder  <jrnieder@gmail.com>  (tiny change)
1641
1642	Simplify y.tab.c when location tracking is disabled.
1643	* data/yacc.c: Do not check YYLTYPE_IS_TRIVIAL if location
1644	tracking is not enabled.  Instead, unconditionally define
1645	YY_LOCATION_PRINT as a no-op for backward compatibility.
1646
16472009-12-15  Jonathan Nieder  <jrnieder@gmail.com>  (tiny change)
1648
1649	Avoid warnings from gcc -Wundef y.tab.c.
1650	* data/glr.c: Check if YYENABLE_NLS and YYLTYPE_IS_TRIVIAL are
1651	defined before using them.
1652	* data/lalr1.cc: Likewise.
1653	* data/yacc.c: Likewise.
1654
16552009-12-15  Joel E. Denny  <jdenny@clemson.edu>
1656
1657	autoconf: update to latest for fix of M4 detection.
1658	Reported by Eric Blake.
1659	* submodules/autoconf: Update.
1660
16612009-12-15  Joel E. Denny  <jdenny@clemson.edu>
1662
1663	portability: use -DGNULIB_POSIXCHECK.
1664	Reported by Eric Blake.  See discussions at
1665	<http://lists.gnu.org/archive/html/bug-bison/2009-09/msg00008.html>
1666	and
1667	<http://lists.gnu.org/archive/html/bug-gnulib/2009-10/msg00108.html>.
1668	* HACKING (Release checks): Suggest -DGNULIB_POSIXCHECK.
1669	* bootstrap.conf (gnulib_modules): Add all the printf modules
1670	suggested by -DGNULIB_POSIXCHECK.  Add realloc-posix as
1671	suggested by -DGNULIB_POSIXCHECK for gnulib's own vasnprintf.c.
1672	(excluded_files): Remove m4/printf-posix.m4.
1673	* tests/atlocal.in (LIBS): As for LDADD in src/local.mk, add
1674	lib/libbison.a so gnulib libraries can be linked.
1675
16762009-12-14  Joel E. Denny  <jdenny@clemson.edu>
1677
1678	Enable assertion output and --disable-assert for configure.
1679	* bootstrap.conf (gnulib_modules): Add assert module.
1680	* src/system.h (aver): Define as assert, and summarize the
1681	discussion on this issue.
1682
16832009-12-14  Joel E. Denny  <jdenny@clemson.edu>
1684
1685	Expand GLR acronym in summary of Bison.
1686	Based on discussion with Akim Demaille starting at
1687	<http://lists.gnu.org/archive/html/bison-patches/2009-04/msg00087.html>.
1688	* doc/bison.texinfo (Introduction): Here.
1689	* src/getargs.c (usage): Here.
1690
16912009-10-03  Alex Rozenman  <rozenman@gmail.com>
1692
1693	Document named references.
1694	* doc/bison.texinfo (Actions): Add new example and xref to
1695	Using Named References node.
1696	(Using Named References): New node.
1697
16982009-10-16  Joel E. Denny  <jdenny@clemson.edu>
1699
1700	cleanup.
1701	* src/Sbitset.c (Sbitset__new_on_obstack): Use Sbitset instead
1702	of char*.
1703	(Sbitset__isEmpty): Use Sbitset instead of char*.
1704	* src/Sbitset.h (Sbitset): Make it a pointer to unsigned char
1705	instead of char.  This helps to avoid casting errors.
1706	(Sbitset__or): Use Sbitset instead of char*.
1707
17082009-10-16  Joel E. Denny  <jdenny@clemson.edu>
1709
1710	portability: don't assume 8-bit bytes.
1711	That is, use CHAR_BIT and UCHAR_MAX instead of 8 and 0xff.
1712	* src/Sbitset.h (Sbitset__nbytes): Here.
1713	(Sbitset__byteAddress): Here.
1714	(Sbitset__bit_mask): Here.
1715	(Sbitset__last_byte_mask): Here.
1716	(Sbitset__ones): Here.
1717	(SBITSET__FOR_EACH): Here.
1718
17192009-10-11  Joel E. Denny  <jdenny@clemson.edu>
1720
1721	portability: use va_start and va_end in the same function.
1722	* src/complain.c (error_message): Move va_end from here...
1723	(ERROR_MESSAGE): ... to here.
1724
17252009-10-08  Joel E. Denny  <jdenny@clemson.edu>
1726
1727	* data/bison.m4: Update comments for rename to muscle-tab.h.
1728
17292009-10-08  Joel E. Denny  <jdenny@clemson.edu>
1730
1731	Rename muscle_tab.* to muscle-tab.* for consistency with master.
1732	* src/Makefile.am (bison_SOURCES): Update.
1733	* src/getargs.c, src/ielr.c, src/lalr.c, src/main.c,
1734	src/output.c, src/parse-gram.y, src/print.c, src/reader.c,
1735	src/tables.c: Update include.
1736	* src/muscle_tab.c, src/muscle_tab.h: Rename to...
1737	* src/muscle-tab.c, src/muscle-tab.h: ... these and update
1738	include.
1739
17402009-10-07  Joel E. Denny  <jdenny@clemson.edu>
1741
1742	Minor code cleanup.
1743	* src/muscle_tab.c (MUSCLE_USER_NAME_CONVERT): Remove macro and
1744	replace all uses with UNIQSTR_CONCAT.
1745	* src/uniqstr.c (uniqstr_vsprintf): New function.
1746	* src/uniqstr.h (uniqstr_vsprintf): Add prototype.
1747	(UNIQSTR_CONCAT, UNIQSTR_GEN_FORMAT, UNIQSTR_GEN_FORMAT_): New
1748	macros.
1749
17502009-10-04  Joel E. Denny  <jdenny@clemson.edu>
1751
1752	Minor code cleanup.
1753	* src/parse-gram.y: Clean up sorting of declarations.
1754	Use types to simplify %printer declarations where possible.
1755	Provide %printer for BRACKETED_ID and symbol.prec.
1756	* src/symtab.c: Whitespace change.
1757
17582009-10-04  Joel E. Denny  <jdenny@clemson.edu>
1759
1760	tests: skip tests of file names that platform does not support.
1761	Reported by Michael Raskin at
1762	<http://lists.gnu.org/archive/html/bug-bison/2009-09/msg00001.html>.
1763	* THANKS (Michael Raskin): Add.
1764	* tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): Fix.  Cygwin used
1765	to fail at least for file names containing ":" or "\".
1766
17672009-09-23  Joel E. Denny  <jdenny@clemson.edu>
1768
1769	yysyntax_error: avoid duplicate lookahead collection.
1770	Except when memory reallocation is required, this change
1771	eliminates the need to invoke yysyntax_error twice and thus to
1772	repeat the collection of lookaheads.  It also prepares for
1773	future extensions that will make those repetitions more
1774	expensive and that will require additional memory management in
1775	yysyntax_error.  Finally, it fixes an obscure bug already
1776	exercised in the test suite.
1777	* data/yacc.c (yysyntax_error): Add arguments for message
1778	buffer variables stored in the parser.  Instead of size, return
1779	status similar to yyparse status but indicating success of
1780	message creation.  Other than the actual reallocation of the
1781	message buffer, import and clean up memory management code
1782	from...
1783	(yyparse, yypush_parse): ... here.
1784	* tests/regression.at (%error-verbose overflow): No longer an
1785	expected failure.
1786
17872009-09-23  Joel E. Denny  <jdenny@clemson.edu>
1788
1789	yysyntax_error: test memory management more.
1790	* tests/atlocal.in (NO_WERROR_CFLAGS): New cpp macro.
1791	* tests/regression.at (%error-verbose and YYSTACK_USE_ALLOCA):
1792	New test group.
1793	(%error-verbose overflow): New test group that reveals an
1794	obscure bug.  Expected fail for now.
1795
17962008-12-11  Akim Demaille  <demaille@gostai.com>
1797
1798	Pass the token type to yysyntax_error.
1799	* data/yacc.c (yysyntax_error): Take the transated token instead
1800	of the raw number.
1801	Adjust callers.
1802
18032008-12-11  Akim Demaille  <demaille@gostai.com>
1804
1805	Simplify the i18n of the error messages.
1806	* data/yacc.c (yysyntax_error): Rewrite, using a switch instead
1807	of building dynamically the format string.
1808
18092009-10-03  Joel E. Denny  <jdenny@clemson.edu>
1810
1811	Remove dead code.
1812	* src/symtab.c (symbol_pack): Here because every symbol's number
1813	is always defined by this time.
1814
18152009-10-03  Alex Rozenman  <rozenman@gmail.com>
1816
1817	Add additional space after periods in NEWS.
1818	* NEWS (2.5): here.
1819
18202009-09-29  Joel E. Denny  <jdenny@clemson.edu>
1821
1822	Use the correct conversion specifier for size_t.
1823	Reported by Jim Meyering.
1824	* src/Sbitset.h (SBITSET__INDEX__CONVERSION_SPEC): New, "zu"
1825	because Sbitset__Index is size_t.
1826	* src/Sbitset.c (Sbitset__fprint): Use it instead of %d.
1827
18282009-09-27  Joel E. Denny  <jdenny@clemson.edu>
1829
1830	tests: don't abuse AT_BISON_CHECK.
1831	* tests/regression.at (parse-gram.y: LALR = IELR): Move
1832	additional shell commands outside of AT_BISON_CHECK.
1833
18342009-09-26  Joel E. Denny  <jdenny@clemson.edu>
1835
1836	tests: check that parse-gram.y's IELR and LALR are identical.
1837	* tests/atlocal.in (abs_top_srcdir): New shell variable.
1838	* tests/regression.at (parse-gram.y: LALR = IELR): New test
1839	group.
1840
18412009-09-16  Akim Demaille  <demaille@gostai.com>
1842
1843	doc: comment changes.
1844	* doc/bison.texinfo: Comment changes.
1845
18462009-09-16  Akim Demaille  <demaille@gostai.com>
1847
1848	doc: spell checking.
1849	* doc/bison.texinfo: here.
1850
18512009-09-19  Alex Rozenman  <rozenman@gmail.com>
1852
1853	Keep sub-messages aligned. Fix strings for translation.
1854	* src/location.h (location_print): Add return value.
1855	* src/location.c (location_print): Return number of printed
1856	characters.
1857	* src/complain.h (complain_at_indent, warn_at_indent): Prototype
1858	new functions.
1859	* src/complain.cpp (indent_ptr): New static variable.
1860	(error_message, complain_at_indent, warn_at_indent): Implement
1861	the alignment mechanism.
1862	* src/scan-code.l (parse_ref, show_sub_messages): Fix strings
1863	for translations. Use new alignment mechanism.
1864	* tests/named-ref.at: Adjust test-cases.
1865	* NEWS (2.5): Add an announcement about named references.
1866
18672009-09-13  Joel E. Denny  <jdenny@clemson.edu>
1868
1869	tests: clean up push.at test group titles.
1870	* tests/push.at: Remove "Push Parsing: " from test group titles
1871	because these are already under the banner "Push Parsing Tests".
1872
18732009-09-12  Alex Rozenman  <rozenman@gmail.com>
1874
1875	Provide an additional sub-message for clarity.
1876	Add "symbol not found in production" error message when
1877	an "invalid reference" is detected in named references
1878	resolution.
1879	* src/scan-code.l: Update "invalid reference" case.
1880	* tests/named-ref.at: Adjust test-cases.
1881
18822009-09-10  Joel E. Denny  <jdenny@clemson.edu>
1883
1884	Clean up yacc.c a little.
1885	* data/yacc.c: Clean up M4 for readability, and make output
1886	whitespace more consistent.  For the main parse function
1887	comment, instead of saying "yyparse or yypush_parse", say either
1888	"yyparse" or "yypush_parse" depending on which it actually is.
1889
18902009-09-03  Joel E. Denny  <jdenny@clemson.edu>
1891
1892	Complain about unused %define variables and %code qualifiers.
1893	* NEWS (2.5): Document.
1894	* data/bison.m4 (b4_check_user_names): Complain instead of warn.
1895	* doc/bison.texinfo (Decl Summary): Document complaint, and
1896	improve %define documentation a little otherwise.
1897	* tests/input.at (Reject unused %code qualifiers): Update.
1898	(%define errors): Update.
1899	(%define, --define, --force-define): Update.
1900	(%define backward compatibility): Update.
1901	(Unused %define api.pure): Update.
1902	* tests/push.at (Push Parsing: Unsupported Skeletons): Update.
1903
19042009-09-03  Joel E. Denny  <jdenny@clemson.edu>
1905
1906	Use aver not assert.
1907	* src/output.c: Don't include assert.h.
1908	(output_skeleton): Use aver not assert.
1909	* src/system.h (aver): In documentation of why, add links to
1910	Paul Eggert's explanations in the mailing lists.
1911
19122009-09-05  Alex Rozenman  <rozenman@gmail.com>
1913
1914	Use "Unresolved reference" error message when no symbols were found
1915	in a symbolic reference resolution. Remove .expr and -expr from
1916	the shown reference when the reference is unresolved.
1917	* src/scan-code.l: Change the error message, adjust location columns,
1918	rename variable "exact_mode" to "explicit_bracketing".
1919	* tests/named-ref.at: Adjust existing tests and add a new one.
1920
19212009-09-03  Akim Demaille  <demaille@gostai.com>
1922
1923	* NEWS (2.4.2): Add "Internationalization" item.
1924
19252009-09-03  Akim Demaille  <demaille@gostai.com>
1926
1927	bootstrap: fix/improve find_tool.
1928	* bootstrap (find_tool): Improve error messages.
1929	Fix typo about find_tool_names.
1930
19312009-08-29  Joel E. Denny  <jdenny@clemson.edu>
1932
1933	Fix gcc 3.4.4 shadowing warning reported by Eric Blake.
1934	See
1935	<http://lists.gnu.org/archive/html/bison-patches/2009-08/msg00093.html>.
1936	* src/scan-code.h (code_props_rule_action_init): Rename
1937	named_ref arg to name so it doesn't shadow named_ref type.  This
1938	makes it consistent with the function definition in scan-code.l
1939	anyway.
1940
19412009-08-28  Joel E. Denny  <jdenny@clemson.edu>
1942
1943	%define: accept unquoted values.
1944	* NEWS (2.5): Group all %define changes together, and document
1945	this one.  Remove quotes in IELR and canonical LR entry.
1946	* doc/bison.texinfo: Remove quotes in most examples throughout.
1947	(Decl Summary): Update %define documentation.
1948	(Table of Symbols): Likewise.
1949	* src/ielr.c (LrType): Update documentation.
1950	* src/parse-gram.y (content.opt): Add production for ID.
1951	* tests/calc.at: Remove quotes in most tests.
1952	* tests/existing.at: Likewise.
1953	* tests/input.at: Likewise.
1954	* tests/local.at: Likewise.
1955	* tests/push.at: Likewise.
1956	* tests/reduce.at: Likewise.
1957	* tests/torture.at: Likewise.
1958
19592009-08-28  Joel E. Denny  <jdenny@clemson.edu>
1960
1961	%define lr.type: make values lowercase IDs.
1962	That is, "LALR" => "lalr", "IELR" => "ielr", and
1963	"canonical LR" => "canonical-lr".
1964	* NEWS (2.5): Update documentation.
1965	* doc/bison.texinfo (Decl Summary): Likewise.
1966	* src/ielr.c (ielr): Use new values.
1967	* src/ielr.h (ielr): Update documentation.
1968	* src/reader.c (prepare_percent_define_front_end_variables): Use
1969	and validate new values.
1970	* tests/existing.at (AT_TEST_EXISTING_GRAMMAR): Update test
1971	grammars.
1972	* tests/reduce.at (AT_TEST_LR_TYPE): Likewise.
1973
19742009-08-27  Eric Blake  <ebb9@byu.net>
1975
1976	scan-gram: avoid portability trap with ctype usage.
1977	* src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>):
1978	Avoid compiler warning.
1979
19802009-08-27  Joel E. Denny  <jdenny@clemson.edu>
1981
1982	tests: use perl for printing special sequences to files.
1983	And skip tests if perl is not available.  This is better than
1984	playing tricks with shell portability.  Suggested by Akim
1985	Demaille.
1986	* tests/input.at (Bad character literals): Use it here for
1987	omitting final newlines.
1988	(Bad escapes in literals): Use it here for special characters.
1989
19902009-08-26  Joel E. Denny  <jdenny@clemson.edu>
1991
1992	tests: show a use of %define lr.default-reductions "consistent"
1993	* tests/conflicts.at (%nonassoc and eof): Extend to test that it
1994	prevents the omission of expected tokens for %error-verbose.
1995
19962009-08-26  Akim Demaille  <demaille@gostai.com>
1997
1998	tests: portability fix.
1999	* tests/input.at (Bad escapes in literals): Don't expect "echo
2000	'\0'" to output \ then 0.
2001
20022009-08-26  Joel E. Denny  <jdenny@clemson.edu>
2003
2004	Actually handle the yytable zero value correctly this time.
2005	* data/glr.c, data/lalr1.cc, data/lalr1.java, data/yacc.c: Don't
2006	mention zero values in the YYTABLE comments.
2007	* data/glr.c (yytable_value_is_error): Don't check for zero
2008	value.
2009	* data/lalr1.cc (yy_table_value_is_error_): Likewise.
2010	* data/yacc.c (yytable_value_is_error): Likewise.
2011	* data/lalr1.java (yy_table_value_is_error_): Likewise.
2012	(yysyntax_error): Fix typo in code: use yytable_ not yycheck_.
2013	* src/tables.h: In header comments, explain why it's useless to
2014	check for a zero value in yytable.
2015
20162009-08-25  Joel E. Denny  <jdenny@clemson.edu>
2017
2018	More fixes related to last two patches.
2019	* data/c.m4 (b4_table_value_equals): Comment that YYID must be
2020	defined.
2021	* data/glr.c, data/lalr1.cc, data/lalr1.java, data/yacc.c: Fix
2022	yytable comments: zero indicates syntax error not default
2023	action.
2024	* data/glr.c (yyis_pact_ninf): Rename to...
2025	(yypact_value_is_default): ... this.
2026	(yyisDefaultedState): Update for rename.
2027	(yyis_table_ninf): Rename to...
2028	(yytable_value_is_error): ... this, and check for value zero
2029	besides just YYTABLE_NINF.
2030	(yygetLRActions): Check for default value from yypact.  It
2031	appears that this check is always performed before this function
2032	is invoked, and so adding the check here is probably redundant.
2033	However, the code may evolve after this subtlety is forgotten.
2034	Also, update for rename to yytable_value_is_error.  Because that
2035	macro now checks for zero, a different but equivalent branch of
2036	the if-then-else here is evaluated.
2037	(yyreportSyntaxError): Update for rename to
2038	yytable_value_is_error.  The zero condition was mishandled
2039	before.
2040	(yyrecoverSyntaxError): Update for renames.  No behavioral
2041	changes.
2042	* data/lalr1.cc, data/lalr1.java (yy_pact_value_is_default_):
2043	New function.
2044	(yy_table_value_is_error_): New function.
2045	(parse): Use new functions where possible.  No behavioral
2046	changes.
2047	(yysyntax_error_, yysyntax_error): Use yy_table_value_is_error_.
2048	The zero condition was mishandled before.
2049	* data/yacc.c (yyis_pact_ninf): Rename to...
2050	(yypact_value_is_default): ... this.
2051	(yyis_table_ninf): Rename to...
2052	(yytable_value_is_error): ... this, and check for value zero
2053	besides just YYTABLE_NINF.
2054	(yysyntax_error): Update for rename to yytable_value_is_error.
2055	The zero condition was mishandled before.
2056	(yyparse): Update for renames.  No behavioral changes.
2057	* src/tables.h: Improve comments about yypact, yytable, etc.
2058	more.  Most importantly, say yytable value of zero means syntax
2059	error not default action.
2060
20612009-08-25  Joel E. Denny  <jdenny@clemson.edu>
2062
2063	Fix %error-verbose for conflicts resolved by %nonassoc.
2064	* NEWS (2.5): Document.
2065	* data/glr.c (yyreportSyntaxError): Fix this by checking
2066	yyis_table_ninf.
2067	* data/yacc.c (yysyntax_error): Likewise.
2068	* data/lalr1.cc (yysyntax_error_): Fix this by checking
2069	yytable_ninf_.
2070	* data/lalr1.java (yysyntax_error): Likewise.
2071	* tests/conflicts.at (%nonassoc and eof): Update expected output
2072	and remove FIXME.
2073
20742009-08-25  Joel E. Denny  <jdenny@clemson.edu>
2075
2076	Some code and documentation improvements.
2077	* data/c.m4 (b4_table_value_equals): New macro to capture
2078	some repeated code.
2079	* data/glr.c (yyis_pact_ninf): Use it here.
2080	(yyis_table_ninf): Likewise.
2081	(yyreportSyntaxError): Improve internal comments.
2082	* data/yacc.c (yyis_pact_ninf): New macro copied from glr.c.
2083	Use it everywhere possible.
2084	(yyis_table_ninf): Likewise.
2085	(yysyntax_error): Improve internal comments.
2086	* data/lalr1.cc (yysyntax_error_): Likewise.
2087	* data/lalr1.java (yysyntax_error): Likewise.
2088	* src/tables.h: Improve comments about yypact, yytable, etc.
2089
20902009-08-21  Joel E. Denny  <jdenny@clemson.edu>
2091
2092	Use locale when quoting.
2093	* src/scan-gram.l (SC_ESCAPED_STRING, SC_ESCAPED_CHARACTER): Use
2094	quote rather than implementing quoting here.
2095
20962009-08-20  Eric Blake  <ebb9@byu.net>
2097
2098	Make previous patch more robust.
2099	* src/output.c (ARRAY_CARDINALITY): New macro, copied from
2100	argmatch.h.
2101	(output_skeleton): Use it.
2102	Suggested by Akim Demaille.
2103
2104	Import latest m4/m4.m4.
2105	* submodules/autoconf: Update to autoconf 2.64.
2106	* configure.ac (M4_GNU_OPTION): New define.
2107	* src/output.c (output_skeleton): Use it to resolve FIXME.
2108	* NEWS: Mention this.
2109
21102009-08-19  Joel E. Denny  <jdenny@clemson.edu>
2111
2112	Fix complaints about escape sequences.
2113	Discussed starting at
2114	<http://lists.gnu.org/archive/html/bison-patches/2009-08/msg00036.html>.
2115	* src/scan-gram.l (SC_ESCAPED_STRING, SC_ESCAPED_CHARACTER):
2116	For a \0 and similar escape sequences meaning the null
2117	character, report an invalid escape sequence instead of an
2118	invalid null character because the latter does not actually
2119	appear in the user's input.
2120	In all escape sequence complaints, don't escape the initial
2121	backslash, and don't quote when the sequence appears at the end
2122	of the complaint line unless there's whitespace that quotearg
2123	won't escape.
2124	Consistently say "invalid" not "unrecognized".
2125	Consistently prefer "empty character literal" over "extra
2126	characters in character literal" warning for invalid escape
2127	sequences; that is, consistently discard those sequences.
2128	* tests/input.at (Bad escapes in literals): New.
2129
21302009-08-19  Akim Demaille  <demaille@gostai.com>
2131
2132	doc: fixes.
2133	* doc/bison.texinfo: Fix minor Texinfo errors.
2134
21352009-08-19  Akim Demaille  <demaille@gostai.com>
2136
2137	doc: %initial-action to initialize yylloc.
2138	Reported by Bill Allombert.
2139	* doc/bison.texinfo: Set fill-column to 76.
2140	(Location Type): Document the use of %initial-action to initialize
2141	yylloc.
2142
21432009-08-18  Joel E. Denny  <jdenny@clemson.edu>
2144
2145	maint: update for gnulib's recent update-copyright changes
2146	* gnulib: Update.
2147	* .x-update-copyright (COPYING): Add as it's no longer implied
2148	when .x-update-copyright is present.
2149	* cfg.mk (update-copyright-local): Remove, now ignored.
2150	(update-copyright): Declare update-b4-copyright as a dependency.
2151
21522009-08-17  Akim Demaille  <demaille@gostai.com>
2153
2154	build: require gettext 0.17.
2155
2156	Suggested by Bruno Haible.
2157	http://lists.gnu.org/archive/html/bug-bison/2009-08/msg00009.html
2158	* configure.ac: require gettext 0.17 to ensure compatibility with
2159	gnulib.
2160
21612009-08-17  Akim Demaille  <demaille@gostai.com>
2162
2163	build: lower gettext requirements.
2164
2165	Bison was uselessly requiring the formatstring macros from
2166	gettext, which resulted in mo files not being installed on systems
2167	that perfectly supported Bison mo files.  Lower the requirement.
2168	http://lists.gnu.org/archive/html/bug-bison/2009-08/msg00006.html
2169
2170	* configure.ac: Require need-ngettext instead of
2171	need-formatstring-macros.
2172	Reported by Martin Jabocs.
2173	Suggested by Bruno Haible.
2174	* INSTALL: Restructure.
2175	(Internationalization): New.
2176
21772009-08-14  Joel E. Denny  <jdenny@clemson.edu>
2178
2179	maint: fix use of copyright year intervals.
2180	* gnulib: Update.
2181	* bootstrap.conf (gnulib_modules): Update getopt to getopt-gnu
2182	as now recommended in gnulib/NEWS.
2183	* build-aux/update-b4-copyright: Fix.
2184	* cfg.mk (update-copyright-env): Configure update-copyright.
2185
21862009-08-13  Joel E. Denny  <jdenny@clemson.edu>
2187
2188	Make it easier to write deterministic tests.
2189	Continues Akim's work from his 2009-06-10 commits.
2190	* src/reader.c (check_and_convert_grammar): Don't add any
2191	symbols after the first symbols_do invocation.
2192	* src/symtab.c (symbols_sorted): New static global.
2193	(user_token_number_redeclaration): Update comments.
2194	(symbol_from_uniqstr): If a new symbol is being created, assert
2195	that symbols_sorted hasn't been allocated yet.
2196	(symbols_free): Free symbols_sorted.
2197	(symbols_cmp, symbols_cmp_qsort): New functions.
2198	(symbols_do): Sort symbol_table into symbols_sorted on first
2199	invocation.
2200	* tests/input.at (Numbered tokens): Recombine tests now that the
2201	output should be deterministic across multiple numbers.
2202
22032009-08-12  Akim Demaille  <demaille@gostai.com>
2204
2205	distcheck: fix.
2206
2207	* examples/calc++/Makefile.am: (EXTRA_DIST): Ship calc.stamp.
2208
22092009-08-10  Joel E. Denny  <jdenny@clemson.edu>
2210
2211	* tests/Makefile.am (TESTSUITE_AT): Add named-refs.at.
2212
22132009-08-10  Joel E. Denny  <jdenny@clemson.edu>
2214
2215	Miscellaneous code readability improvements.
2216
2217	* src/reader.c (reader): Move %define front-end variable
2218	defaults and checking into...
2219	(prepare_percent_define_front_end_variables): ... this new
2220	function.
2221
2222	* src/scan-gram.l (INITIAL): For consistency with string
2223	literals, don't store open quote on character literal.  It's
2224	discarded before returning anyway.
2225	(SC_ESCAPED_CHARACTER): Similarly, don't store close quote.
2226	Make length test more readable, and make the character stored
2227	for an empty literal more obvious while consistent with the
2228	previous behavior.
2229
2230	* src/symtab.c, src/symtab.h: Rename USER_NUMBER_ALIAS to
2231	USER_NUMBER_HAS_STRING_ALIAS throughout.
2232	* src/symtab.c (symbol_make_alias): Remove comment from symtab.c
2233	that is repeated in symtab.h.  Improve argument names to make it
2234	clear which side of the symbol-string alias pair is which.
2235	(symbol_check_alias_consistency): Improve local variable names
2236	for the same purpose.
2237	* src/symtab.h (struct symbol): Make comments about aliases
2238	clearer.
2239	(symbol_make_alias): Improve comments and argument name.
2240	* src/output.c (token_definitions_output): Update for rename to
2241	USER_NUMBER_HAS_STRING_ALIAS and improve comments about aliases.
2242
22432009-08-08  Alex Rozenman  <rozenman@gmail.com>
2244
2245	Convert "misleading reference" messages to warnings.
2246	* src/scan-code.l: New function 'show_sub_messages', more
2247	factoring.
2248	* tests/named-ref.at: Adjust tests.
2249
22502009-08-06  Joel E. Denny  <jdenny@clemson.edu>
2251
2252	maint: run "make update-copyright"
2253
22542009-08-06  Joel E. Denny  <jdenny@clemson.edu>
2255
2256	maint: make update-b4-copyright easier to use
2257	* build-aux/update-b4-copyright: In warnings, report line
2258	numbers rather than character positions.
2259	* cfg.mk (update-copyright-local): Set to update-b4-copyright so
2260	that update-copyright runs it.
2261	* gnulib: Update.
2262
22632009-08-05  Joel E. Denny  <jdenny@clemson.edu>
2264
2265	maint: clean up update-b4-copyright code
2266	* build-aux/update-b4-copyright: Do not accept 2-digit
2267	UPDATE_COPYRIGHT_YEAR, which was not handled correctly.
2268	Don't accept a `[' in a b4_copyright argument.
2269	Format code more consistently.
2270	Don't assume b4*copyright never occurs.
2271
22722009-08-04  Joel E. Denny  <jdenny@clemson.edu>
2273
2274	maint: automate b4_copyright updates.
2275	* Makefile.am (update-b4-copyright): New target rule.
2276	* build-aux/Makefile.am (EXTRA_DIST): Add update-b4-copyright.
2277	* build-aux/update-b4-copyright: New.
2278	* data/yacc.c: Remove stray characters around b4_copyright
2279	invocations.
2280
22812009-08-04  Joel E. Denny  <jdenny@clemson.edu>
2282
2283	maint: automate annual package-wide copyright-year update.
2284	* .x-update-copyright: New.
2285	* Makefile.am (EXTRA_DIST): Remove maint.mk.
2286	* bootstrap.conf (gnulib_modules): Add maintainer-makefile and
2287	update-copyright.  Remove gnumakefile, which is implied by
2288	maintainer-makefile.
2289	* cfg.mk (bootstrap-tools): Copy from old maint.mk.
2290	* gnulib: Update.
2291	* maint.mk: Remove, now copied from gnulib.
2292	* examples/extexi: Add missing "(C)" in copyright statement so
2293	update-copyright can recognize it.
2294	* src/LR0.h: Likewise.
2295	* src/print.h: Likewise.
2296	* src/print_graph.h: Likewise.
2297	* src/gram.c: Add missing comma in copyright statement.
2298	* src/gram.h: Likewise.
2299
23002009-08-04  Joel E. Denny  <jdenny@clemson.edu>
2301
2302	Fix "make distcheck".
2303	* examples/calc++/Makefile.am: Say $(srcdir)/calc.stamp instead
2304	of just calc.stamp.
2305
23062009-08-01  Joel E. Denny  <jdenny@clemson.edu>
2307
2308	Pacify "gcc -Wunused" for the input function from Flex.
2309	Reported by Alex Rozenman.  This warning shows up with gcc-4.3.0
2310	and later.
2311	* src/scan-code.l: Add "%option noinput", which I cannot find in
2312	the Flex manual, but which Flex has supported since at least as
2313	far back as 2.5.4.  However, if any of our developers still use
2314	Flex 2.5.4, they'll need to stop configuring with
2315	--enable-gcc-warnings because "%option noinput" didn't work
2316	correctly until Flex 2.5.6.
2317	* src/scan-gram.l: Likewise.
2318	* src/scan-skel.l: Likewise.
2319
23202009-07-31  Alex Rozenman  <rozenman@gmail.com>
2321
2322	Fix --enable-gcc-warnings problems.
2323	* src/reader.c: Adjust variable names.
2324	* src/scan-code.l: Fix prototypes and adjust names.
2325	* src/named-ref.c: Remove redundant "if".
2326
23272009-07-29  Joel E. Denny  <jdenny@ces.clemson.edu>
2328
2329	Fix a --enable-gcc-warnings problem.
2330	* src/scan-gram.l (SC_ESCAPED_CHARACTER): Actually use length
2331	variable.
2332
23332009-07-24  Alex Rozenman  <rozenman@gmail.com>
2334
2335	Fix some memory leaks.
2336	* src/named-ref.c: Add a pointer check (named_ref_free).
2337	* src/scan-code.l: New function (variant_table_free). Called in
2338	code_scanner_free.
2339	* src/symlist.c: Call to named_ref_free (symbol_list_free).
2340
23412009-07-24  Joel E. Denny  <jdenny@ces.clemson.edu>
2342
2343	Warn about character literals not of length one.
2344	* NEWS (2.5): Document.
2345	* src/scan-gram.l (INITIAL): Remove comment that we don't check
2346	the length.
2347	(SC_ESCAPED_CHARACTER): Warn if length is wrong.
2348	* tests/input.at (Bad character literals): New test group.
2349
23502009-07-24  Joel E. Denny  <jdenny@ces.clemson.edu>
2351
2352	* src/lalr.c (state_lookahead_tokens_count): Correct comment.
2353
23542009-07-22  Joel E. Denny  <jdenny@ces.clemson.edu>
2355
2356	Some M4 cleanup in the testsuite.
2357	Suggested by Eric Blake at
2358	<http://lists.gnu.org/archive/html/bison-patches/2009-04/msg00083.html>.
2359	* tests/existing.at (_AT_TEST_EXISTING_GRAMMAR): Do not
2360	complicate the code by distinguishing between a missing value
2361	and an empty string value for an optional argument.  This fix is
2362	allowed by the similar fix in AT_TEST_TABLES_AND_PARSE below.
2363	* tests/local.at (_AT_TEST_TABLES_AND_PARSE): Merge into...
2364	(AT_TEST_TABLES_AND_PARSE): ... this now that the special
2365	arguments are not needed because of the following changes.
2366	Fix stale comments.
2367	Bison developers should use GNU M4 and should not use
2368	POSIXLY_CORRECT when building the test suite, so do not
2369	complicate the code by avoiding $10 and above.
2370	Do not quote an empty string value for an optional argument, and
2371	do not distinguish between a missing value and an empty string
2372	value.
2373
23742009-07-21  Joel E. Denny  <jdenny@ces.clemson.edu>
2375
2376	* m4/m4.m4: Make it a sym link to submodules/autoconf/m4/m4.m4.
2377
23782009-07-15  Joel E. Denny  <jdenny@ces.clemson.edu>
2379
2380	Revert unnecessary column realignment in --help output.
2381	Reported by Akim Demaille at
2382	<http://lists.gnu.org/archive/html/bison-patches/2009-06/msg00010.html>.
2383	* src/getargs.c (usage): Here.
2384
23852009-07-04  Alex Rozenman  <rozenman@gmail.com>
2386
2387	Alphabetical order in src/Makefile.am.
2388	* src/Makefile.am: Adjust.
2389
23902009-07-04  Alex Rozenman  <rozenman@gmail.com>
2391
2392	Style changes and factoring.
2393	* src/named-ref.h: Add comments.
2394	* src/parse-gram.y: Readability and style changes.
2395	* src/reader.c: Factoring: assign_named_ref function.
2396	* src/scan-code.l: Factoring and style changes. Rename
2397	parse_named_ref to parse_ref. Use "c-ctype.h" from gnulib.
2398	Use "unsigned" type for variant index. Improve readablity.
2399	* src/scan-gram.l: Change error messages and add comments.
2400	* src/symlist.h: symbol_list_null: New function decl.
2401	* src/symlist.c: symbol_list_null: Implement here.
2402	* tests/named-refs.at: Adjust for new error messages.
2403
24042009-06-29  Eric Blake  <ebb9@byu.net>
2405
2406	scan-code: avoid compiler warnings
2407	* src/scan-code.l (parse_named_ref): Use correct specifiers.
2408
24092009-06-29  Akim Demaille  <demaille@gostai.com>
2410
2411	build: avoid concurrent extraction of calc++.
2412	* examples/calc++/Makefile.am (calc.stamp): New.
2413	Depend on it to create the sources of calc++ so that concurrent
2414	builds don't launch several "extexi" in parallel.
2415	Not only this is inefficient, this also builds incorrect sources
2416	with several extractions mixed together.
2417
24182009-06-27  Alex Rozenman  <rozenman@gmail.com>
2419
2420	Implement support for named symbol references.
2421	* src/parse-gram.y: Add new syntax (named_ref.opt).
2422	* src/reader.c: Store named refs in symbol lists.
2423	* src/reader.h: New argument for symbol_append and
2424	action_append functions.
2425	* src/scan-code.h: Add new field (named_ref) into
2426	code_props data structure. Keeps named ref of midrule
2427	actions.
2428	* src/scan-code.l: Support for named refs in semantic
2429	action code. New function 'parse_named_ref'.
2430	* src/scan-gram.l: Support bracketed id.
2431	* src/symlist.c: Store named refs in symbol lists.
2432	* src/symlist.h: New field in symbol list: named_ref.
2433	* src/named-ref.h: New file, a struct for named_ref.
2434	* src/named-ref.cp: New file, named_ref_new function.
2435	* src/local.mk: Add two new files.
2436	* tests/testsuite.at: Include new test group:
2437	* tests/named-refs.at: this new file.
2438
24392009-06-25  Akim Demaille  <demaille@gostai.com>
2440
2441	hash: check insertion for memory exhaustion.
2442	* src/uniqstr.c (uniqstr_new): New.
2443
24442009-06-11  Akim Demaille  <demaille@gostai.com>
2445
2446	style changes.
2447	* data/xslt/xml2dot.xsl, data/xslt/xml2xhtml.xsl: Space changes.
2448	* src/print-xml.c: Style changes.
2449	* tests/conflicts.at: Comment changes.
2450
24512009-06-11  Akim Demaille  <demaille@gostai.com>
2452
2453	xml: beware of user strings used to give a %prec to rules.
2454	* tests/conflicts.at (%prec with user strings): New.
2455	* src/gram.c (grammar_rules_print_xml): Escape the precedence for
2456	XML output.
2457
24582009-06-11  Akim Demaille  <demaille@gostai.com>
2459
2460	hash: check insertion for memory exhaustion.
2461	* src/muscle-tab.c (muscle_insert, muscle_grow)
2462	* src/state.c (state_hash_insert): Check the return value of
2463	hash_insert.
2464
24652009-06-10  Akim Demaille  <demaille@gostai.com>
2466
2467	deterministic test suite.
2468	Some consistency checks on symbols are performed after all the
2469	symbols were read, by an iteration over the symbol table.  This
2470	traversal is nondeterministic, which can be a problem for test
2471	cases.
2472	Avoid this.
2473	Addresses another form of nondeterminism reported by Joel E. Denny.
2474	http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00023.html
2475
2476	* tests/input.at (Numbered tokens): Split the hexadecimal/decimal
2477	test in two.
2478	Use different file names for the three tests to make the
2479	maintenance easier.
2480
24812009-06-10  Akim Demaille  <demaille@gostai.com>
2482
2483	deterministic user-token-number redeclaration errors.
2484	Address nondeterminism reported by Joel E. Denny.
2485	http://lists.gnu.org/archive/html/bison-patches/2009-05/msg00023.html
2486
2487	* src/uniqstr.h: Comment changes.
2488	* src/location.h (boundary_cmp, location_cmp): New.
2489	* src/symtab.c (user_token_number_redeclaration): New.
2490	(symbol_translation): Use it.
2491	* tests/input.at (Numbered tokens): Adjust the expected output.
2492
24932009-05-25  Akim Demaille  <demaille@gostai.com>
2494
2495	gnulib: update.
2496	* gnulib: Update to latest.
2497	* lib/.cvsignore, lib/.gitignore, m4/.cvsignore,
2498	* m4/.gitignore: Regen.
2499	* src/symtab.c (symbol_from_uniqstr, semantic_type_from_uniqstr):
2500	Call xalloc_die on hash_insert failures.
2501	Requested by the new __warn_unused_result__ attribute of
2502	hash_insert.
2503
25042009-05-22  Joel E. Denny  <jdenny@ces.clemson.edu>
2505
2506	Convert multiple variable definition warnings to complaints.
2507	* NEWS (2.5): Add a new entry for that change.
2508	* doc/bison.texinfo (Decl Summary): Update %define entry.
2509	(Bison Options): Update -D/--define/-F/--force-define entry.
2510	* src/muscle_tab.c (muscle_percent_define_insert): Implement.
2511	* src/muscle_tab.h (muscle_percent_define_insert): Update
2512	comments.
2513	* tests/input.at (`%define errors'): Update.
2514	(`%define, --define, --force-define'): Update.
2515
25162009-05-22  Joel E. Denny  <jdenny@ces.clemson.edu>
2517
2518	-F/--force-define and relative %define/-D/--define priorities.
2519	* NEWS (2.5): Add documentation to -D/--define entry.
2520	* build-aux/cross-options.pl: Hard-code association of
2521	--force-define with %define.
2522	* doc/bison.texinfo (Decl Summary): In %define entry,
2523	cross-reference command-line options.
2524	(Bison Options): Add documentation to -D/--define entry.
2525	(Option Cross Key): Widen column for --force-define row.
2526	* src/getargs.c (usage): Document -F/--force-define.  Realign
2527	options in output.
2528	(short_options, long_options, getargs): Parse -F/--force-define,
2529	and update muscle_percent_define_insert invocation.
2530	* src/muscle_tab.h (muscle_percent_define_how): New enum type.
2531	(muscle_percent_define_insert): Add argument with that type.
2532	* src/muscle_tab.c (muscle_percent_define_insert): Implement
2533	-F/--force-define behavior and priorities.
2534	* src/parse-gram.y (prologue_declaration): Update
2535	muscle_percent_define_insert invocations.
2536	* tests/input.at (`%define, --define'): Rename to...
2537	(`%define, --define, --force-define'): ... this and extend.
2538
25392009-05-22  Joel E. Denny  <jdenny@ces.clemson.edu>
2540
2541	Update some comments to make sense for -D.
2542	* data/bison.m4 (b4_check_user_names): In header comments, say
2543	"user occurrence" instead of "grammar occurrence".
2544	* src/muscle_tab.h (muscle_percent_define_insert): Likewise.
2545	(muscle_percent_code_grow): Likewise just for consistency.
2546
25472009-05-22  Joel E. Denny  <jdenny@ces.clemson.edu>
2548
2549	* data/c++.m4: Update copyright year.
2550
25512009-05-20  Joel E. Denny  <jdenny@ces.clemson.edu>
2552
2553	* data/c++.m4 (b4_namespace_close): Simplify slightly.
2554
25552009-05-19  Joel E. Denny  <jdenny@ces.clemson.edu>
2556
2557	Handle a trailing `:' in a user-supplied C++ namespace better.
2558	* data/c++.m4 (b4_namespace_close): Don't let it be printed
2559	among the closing braces here.  This fix might make the
2560	generated code easier to debug, but otherwise it should be
2561	insignificant because a trailing `:' is a C++ error already.
2562
25632009-05-19  Akim Demaille  <demaille@gostai.com>
2564
2565	remove useless variable.
2566	* src/getargs.c (skeleton_arg): Remove now useless variable.
2567	Should help the compiler see that this printf-like call is sane.
2568
25692009-05-11  Akim Demaille  <demaille@gostai.com>
2570
2571	doc: use C++ headers.
2572	* doc/bison.texinfo (Calc++ Scanner): Prefer C++ headers to C
2573	headers.
2574
25752009-05-05  Akim Demaille  <demaille@gostai.com>
2576
2577	fix hexadecimal token number support.
2578	* src/scan-gram.l: Catch incorrect ids after hexadecimal numbers.
2579
25802009-05-05  Akim Demaille  <demaille@gostai.com>
2581
2582	tests: check token numbers.
2583	* tests/input.at (Numbered tokens): New.
2584
25852009-05-04  Akim Demaille  <demaille@gostai.com>
2586
2587	bison: catch bad symbol names.
2588	* src/scan-gram.l({int}{id}): Report as an invalid identifier.
2589	* tests/input.at: Adjust.
2590
25912009-05-04  Akim Demaille  <demaille@gostai.com>
2592
2593	space changes.
2594	* src/scan-gram.l: Untabify to be robust to zealous editors.
2595
25962009-05-04  Akim Demaille  <demaille@gostai.com>
2597
2598	identifiers: dashes are letters.
2599	Dashes can now start identifiers (symbols and directives).
2600
2601	* src/scan-gram.l ({letter}): Add dash.
2602	({id}): Remove it.
2603	* tests/input.at (Symbols): Adjust.
2604	Remove stray comment.
2605	* tests/regression.at (Invalid inputs): Adjust error message.
2606	* doc/bison.texinfo (Symbols): Update.
2607
26082009-05-01  Joel E. Denny  <jdenny@ces.clemson.edu>
2609
2610	Declare %code to be a permanent feature.
2611	* NEWS (2.4.2): Here.
2612	* doc/bison.texinfo (Prologue Alternatives): Don't say it's
2613	experimental.
2614	(Decl Summary): Likewise.
2615
26162009-04-30  Joel E. Denny  <jdenny@ces.clemson.edu>
2617
2618	Convert underscores to dashes in some %define variable names.
2619	For now, just api.push-pull and lr.keep-unreachable-states.
2620	Maintain old names for backward compatibility.
2621	* NEWS (2.5): Document.
2622	* data/c.m4 (b4_identification): Update comment.
2623	* data/yacc.c: Update access.
2624	* doc/bison.texinfo: Update.
2625	* etc/bench.pl.in (bench_grammar): Update use.
2626	* src/files.c (tr): Move to...
2627	* src/getargs.c, src/getargs.h (tr): ... here because I can't
2628	think of a better place to expose it.  My logic is that, for all
2629	uses of tr so far, command-line arguments can be involved, and
2630	getargs.h is already included.
2631	* src/main.c (main): Update access.
2632	* src/muscle_tab.c (muscle_percent_define_insert): Convert old
2633	variable names to new variable names before assigning value.
2634	* src/reader.c (reader): Update setting default.
2635	* tests/calc.at: Update uses.
2636	* tests/conflicts.at (Unreachable States After Conflict
2637	Resolution): Update use.
2638	* tests/input.at (%define enum variables): Update use.
2639	(%define backward compatibility): New test group.
2640	* tests/push.at: Update uses.
2641	* tests/reduce.at: Update uses.
2642	* tests/torture.at: Update uses.
2643
26442009-04-30  Joel E. Denny  <jdenny@ces.clemson.edu>
2645
2646	Set all front-end %define defaults in one place.
2647	* src/main.c (main): Move lr.keep_unreachable_states default...
2648	* src/reader.c (reader): ... to here.
2649
26502009-04-29  Joel E. Denny  <jdenny@ces.clemson.edu>
2651
2652	Rename lr.default_reductions to lr.default-reductions.
2653	* NEWS (2.5): Here.
2654	* doc/bison.texinfo: Here.
2655	* src/lalr.c (initialize_LA): Here.
2656	* src/print.c (print_reductions): Here.
2657	* src/reader.c (reader): Here.
2658	* src/tables.c (action_row): Here.
2659	* tests/input.at (%define enum variables): Here.
2660	* tests/reduce.at (AT_TEST_LR_DEFAULT_REDUCTIONS): Here.
2661
26622009-04-29  Joel E. Denny  <jdenny@ces.clemson.edu>
2663
2664	Pacify ./configure --enable-gcc-warnings.
2665	* tests/input.at (Symbols): Prototype yyerror and yylex.
2666
26672009-04-21  Akim Demaille  <demaille@gostai.com>
2668
2669	tests: check the use of dashes and periods in symbols.
2670	* tests/input.at (Symbol): New test group.
2671
26722009-04-29  Joel E. Denny  <jdenny@ces.clemson.edu>
2673
2674	Document how `%define "var" "value"' is not M4-friendly.
2675	* src/parse-gram.y (variable): In comments here.
2676
26772009-04-29  Joel E. Denny  <jdenny@ces.clemson.edu>
2678
2679	Add copyright updates missed during previous cherry pick.
2680	* src/output.c: Here.
2681	* src/parse-gram.y: Here.
2682	* src/scan-gram.l: Here.
2683
26842009-04-20  Akim Demaille  <demaille@gostai.com>
2685
2686	variables: accept dashes.
2687	* src/scan-gram.l ({id}): Also accept dashes after the initial
2688	letter.
2689	({directive}): Use {id}.
2690	* src/parse-gram.y: Comment and formatting changes.
2691	* doc/bison.texinfo (Symbols): Adjust the lexical definitions of
2692	symbols.
2693	* src/complain.h, src/complain.c (yacc_at): New.
2694	* src/symtab.c (symbol_new): Use yacc_at to report inappropriate
2695	symbol names.
2696	* src/output.c (token_definitions_output): Do not #define token
2697	names with dashes.
2698
26992009-04-24  Joel E. Denny  <jdenny@ces.clemson.edu>
2700
2701	Clean up recent patches a little.
2702	Reported by Akim Demaille.
2703	* doc/bison.texinfo (Understanding): Fix typos.
2704	* src/print.c (print_reductions): Don't use negated variable.
2705
27062009-04-24  Joel E. Denny  <jdenny@ces.clemson.edu>
2707
2708	List accepted values for a %define enum variable with an invalid value.
2709	Suggested by Akim Demaille at
2710	<http://lists.gnu.org/archive/html/bison-patches/2009-04/msg00082.html>.
2711	* data/bison.m4 (_b4_percent_define_check_values): Implement.
2712	* src/muscle_tab.c (muscle_percent_define_check_values): Implement.
2713	* tests/input.at (%define lr.default_reductions invalid values): Merge
2714	into...
2715	(%define enum variables): ... here, and update output.
2716
27172009-04-23  Joel E. Denny  <jdenny@ces.clemson.edu>
2718
2719	Rename "default rule" to "default reduction".
2720	This includes changing variable names in code, changing
2721	comments, and renaming %define lr.default_rules to %define
2722	lr.default_reductions.
2723	* NEWS (2.5): Update IELR documentation.
2724	* data/glr.c, data/lalr1.cc, data/lalr1.java, data/yacc.c:
2725	Adjust YYDEFACT and yydefact_ documentation.
2726	* doc/bison.texinfo (Decl Summary): Adjust lr.default_reductions
2727	and lr.type documentation.  Make some other wording
2728	improvements.
2729	(Glossary): Adjust cross-references and Default Reduction
2730	definition.
2731	* src/lalr.c (state_lookahead_tokens_count): Adjust code.
2732	Remove a confusing comment pointed out by Akim Demaille.
2733	(initialize_LA): Adjust code.
2734	* src/print-xml.c (print_reductions): Adjust code.
2735	* src/print.c (print_reductions): Adjust code.
2736	* src/reader.c (reader): Adjust code.
2737	* src/tables.c (action_row): Adjust code.
2738	(token_actions): Adjust code.
2739	* src/tables.h: Adjust YYDEFACT documentation.
2740	* tests/input.at (%define lr.default_rules invalid values):
2741	Rename test group to...
2742	(%define lr.default_reductions invalid values): ... this, and
2743	update grammar file and expected output.
2744	* tests/reduce.at (AT_TEST_LR_DEFAULT_RULES): Rename to...
2745	(AT_TEST_LR_DEFAULT_REDUCTIONS): ... this, and update.
2746
27472009-04-21  Joel E. Denny  <jdenny@ces.clemson.edu>
2748
2749	Document %define lr.type and lr.default_rules.
2750	* NEWS (2.5): Add an entry.
2751	* src/getargs.c (usage): Mention IELR(1) and canonical LR(1)
2752	besides just LALR(1) and GLR(1).
2753	* doc/bison.texinfo (Introduction): Likewise.
2754	(Language and Grammar): Bison is no longer limited to LALR(1)
2755	restrictions.
2756	(GLR parsing): Say deterministic or LR(1) rather than LALR(1)
2757	when trying to distinguish from GLR.  Talk about LR(1) grammars
2758	rather than LALR(1) grammars.
2759	(Decl Summary): In %define api.push_pull entry, say it applies
2760	to deterministic parsers in C rather than LALR(1) parsers in C.
2761	Add lr.default_rules entry.
2762	Add lr.type entry.
2763	(Mystery Conflicts): Bison is no longer limited to LALR(1)
2764	restrictions.
2765	(Generalized LR Parsing): Same changes as for the previous GLR
2766	section.
2767	(Memory Management): Say deterministic rather than LALR(1).
2768	(Understanding): Correct some bison output.
2769	Index discussion of "accepting state".
2770	Say deterministic rather than LALR(1).
2771	(Bison Options): In --yacc entry, say deterministic rather than
2772	LALR(1).
2773	In --report, --graph, and --xml entries, just don't mention
2774	LALR(1).
2775	(C++ Parsers): Say deterministic rather than LALR(1).
2776	(Table of Symbols): Likewise in YYSTACK_USE_ALLOCA entry.
2777	(Glossary): Add Accepting State, Consistent State, Default Rule,
2778	and IELR(1) definitions.
2779	In Generalized LR (GLR) definition, make same changes as in
2780	previous GLR sections.
2781	In LALR(1) definition, say Bison uses LALR(1) by default rather
2782	than implying Bison is limited to LALR(1).
2783	(LocalWords): Add IELR.
2784
27852009-04-21  Joel E. Denny  <jdenny@ces.clemson.edu>
2786
2787	Finish implementing %define lr.type.
2788	Its value can be "LALR", "IELR", or "canonical LR".
2789	* lib/timevar.def (TV_IELR_PHASE1): New var.
2790	(TV_IELR_PHASE2): New var.
2791	(TV_IELR_PHASE3): New var.
2792	(TV_IELR_PHASE4): New var.
2793	* src/Makefile.am (bison_SOURCES): Add AnnotationList.c,
2794	AnnotationList.h, InadequacyList.c, InadequacyList.h, Sbitset.c,
2795	Sbitset.h, ielr.h, and ielr.c.
2796	* src/getargs.h, src/getargs.c (enum trace, trace_args,
2797	trace_types): Add trace_ielr.
2798	* src/lalr.h, src/lalr.c (ngotos): Export it.
2799	(F): Rename to...
2800	(goto_follows): ... this, update all uses, and export it.
2801	(set_goto_map): Export it.
2802	(map_goto): Export it.
2803	(compute_lookahead_tokens): Don't free goto_follows yet.  Now
2804	handled in ielr.
2805	(initialize_LA): Export it.  Move lookback allocation to...
2806	(lalr): ... here because, for canonical LR, initialize_LA must
2807	be invoked but lookback and much of the rest of LALR isn't
2808	needed.
2809	* main.c (main): Instead of lalr, invoke ielr, which invokes
2810	lalr.
2811	* src/reader.c (reader): Default lr.type to "LALR".
2812	Default lr.default_rules to "accepting" if lr.type is "canonical
2813	LR".  Leave the default as "all" otherwise.
2814	Check for a valid lr.type value.
2815	* src/state.h, src/state.c (struct state_list): Add state_list
2816	member.
2817	(state_new): Initialize state_list member to NULL.
2818	(state_new_isocore): New function, exported.
2819	* tests/existing.at (AT_TEST_EXISTING_GRAMMAR): New macro that
2820	exercises all values of lr.type.
2821	(GNU AWK Grammar): Rename test group to...
2822	(GNU AWK 3.1.0 Grammar): ... this, and extend to use
2823	AT_TEST_EXISTING_GRAMMAR.
2824	(GNU Cim Grammar): Extend to use AT_TEST_EXISTING_GRAMMAR.
2825	(GNU pic Grammar): Rename test group to...
2826	(GNU pic (Groff 1.18.1) Grammar): ... this, and extend to use
2827	AT_TEST_EXISTING_GRAMMAR.
2828	* tests/reduce.at (AT_TEST_LR_TYPE): New macro that exercises
2829	all values of lr.type.
2830	(Single State Split): New test groups using AT_TEST_LR_TYPE.
2831	(Lane Split): Likewise.
2832	(Complex Lane Split): Likewise.
2833	(Split During Added Lookahead Propagation): Likewise.
2834
28352009-04-21  Joel E. Denny  <jdenny@ces.clemson.edu>
2836
2837	Add new files for IELR and canonical LR implementation.
2838	* src/AnnotationList.c: New.
2839	* src/AnnotationList.h: New.
2840	* src/InadequacyList.c: New.
2841	* src/InadequacyList.h: New.
2842	* src/Sbitset.c: New.
2843	* src/Sbitset.h: New.
2844	* src/ielr.c: New.
2845	* src/ielr.h: New.
2846
28472009-04-20  Joel E. Denny  <jdenny@ces.clemson.edu>
2848
2849	Implement %define lr.default_rules.
2850	Its value describes the states that are permitted to contain
2851	default rules: "all", "consistent", or "accepting".
2852	* src/reader.c (reader): Default lr.default_rules to "all".
2853	Check for a valid lr.default_rules value.
2854	* src/lalr.c (state_lookahead_tokens_count): If lr.default_rules
2855	is "accepting", then only mark the accepting state as
2856	consistent.
2857	(initialize_LA): Tell state_lookahead_tokens_count whether
2858	lr.default_rules is "accepting".
2859	* src/tables.c (action_row): If lr.default_rules is not "all",
2860	then disable default rules in inconsistent states.
2861	* src/print.c (print_reductions): Use this opportunity to
2862	perform some assertions about whether lr.default_rules was
2863	obeyed correctly.
2864	* tests/local.at (AT_TEST_TABLES_AND_PARSE): New macro that
2865	helps with checking the parser tables for a grammar.
2866	* tests/input.at (%define lr.default_rules invalid values): New
2867	test group.
2868	* tests/reduce.at (AT_TEST_LR_DEFAULT_RULES): New macro using
2869	AT_TEST_TABLES_AND_PARSE.
2870	(`no %define lr.default_rules'): New test group generated by
2871	AT_TEST_LR_DEFAULT_RULES.
2872	(`%define lr.default_rules "all"'): Likewise.
2873	(`%define lr.default_rules "consistent"'): Likewise.
2874	(`%define lr.default_rules "accepting"'): Likewise.
2875
28762009-04-20  Akim Demaille  <demaille@gostai.com>
2877
2878	Consistently refer to Yacc, not YACC.
2879	* src/getargs.c (usage, warnings_args): s/YACC/Yacc/.
2880
28812009-04-17  Joel E. Denny  <jdenny@ces.clemson.edu>
2882
2883	Pacify make maintainer-check-posix.
2884	* tests/input.at (%define, --define): Move bison command-line
2885	options before grammar file name.
2886
28872009-04-04  Joel E. Denny  <jdenny@ces.clemson.edu>
2888
2889	Document semicolon warnings.
2890	* NEWS (2.5): Here.
2891
28922008-12-08  Akim Demaille  <demaille@gostai.com>
2893
2894	Fix portability issue in the test suite.
2895	* tests/local.at (AT_MATCHES_CHECK): New.
2896	Based on Perl instead of Sed.  Sed has too many portability
2897	pitfalls, not ever Sed is GNU Sed.
2898	* tests/actions.at (Fix user actions without a trailing semicolon):
2899	Use it.
2900
29012008-12-07  Di-an Jan  <dianj@freeshell.org>
2902
2903	Implement the FIXME that ends an user action with a semicolon
2904	if it seems necessary.
2905	* src/scan-code.l (flex rules section): Flag cpp directive from
2906	any `#' to the first unescaped end-of-line.  Semicolon is not
2907	needed after `;', `{', '}', or cpp directives and is needed after
2908	any other token (whitespaces and comments have no effect).
2909	* tests/actions.at (Fix user actions without a trailing semicolon):
2910	New test.
2911	* tests/input.at (AT_CHECK_UNUSED_VALUES): Add semicolons to
2912	to make user actions complete statements.
2913	Adjust column numbers in error messages.
2914	* tests/regression.at (Fix user actions without a trailing semicolon):
2915	Remove.  Covered by new test.
2916
29172009-04-14  Akim Demaille  <demaille@gostai.com>
2918
2919	doc: minor fixes.
2920	* doc/bison.texinfo (Decl Summary): Fix entry about %debug.
2921	(Table of Symbols): Remove duplicate entry for %debug.
2922
29232009-04-10  Eric Blake  <ebb9@byu.net>
2924
2925	submodules: update to latest
2926	* submodules/autoconf: Use latest upstream Autoconf.
2927
29282009-04-06  Eric Blake  <ebb9@byu.net>
2929
2930	Work around autoconf 2.63b bug in testsuite.
2931	* tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): Avoid tripping
2932	autoconf bug related to # in test.
2933
29342009-04-06  Joel E. Denny  <jdenny@ces.clemson.edu>
2935
2936	* NEWS (2.5): Describe new -D/--define feature.
2937
29382008-11-10  Akim Demaille  <demaille@gostai.com>
2939
2940	--trace=muscles
2941	* src/getargs.h, src/getargs.c (trace_muscle): New.
2942	(trace_types, trace_args): Support it.
2943	* src/output.c (output_skeleton): Use it.
2944
29452008-11-10  Akim Demaille  <demaille@gostai.com>
2946
2947	muscles_output.
2948	* src/output.c (muscles_output): New, extracted from...
2949	(output_skeleton): here.
2950	Adjust.
2951
29522008-11-21  Akim Demaille  <demaille@gostai.com>
2953
2954	Display the changes in cross-options.texi.
2955	* build-aux/cross-options.pl ($sep): New, to separate items.
2956	* doc/Makefile.am ($(srcdir)/cross-options.texi): Use diff to display
2957	the changes.
2958
29592008-11-20  Di-an Jan  <dianj@freeshell.org>
2960
2961	Improves options in the manual.
2962	* doc/bison.texinfo (-g, -x): Add space before argument.
2963	(Option Cross Key): Implement FIXME: listing directives also.
2964	* build-aux/cross-options.pl:  Read from <STDIN> rather than <>.
2965	(Short Option): Special case -d.  Put arguments inside @option.
2966	(Bison Directive): Add column, automatically extracted from
2967	src/scan-gram.l (actual name passed as the first argument)
2968	with special case for %define.
2969	* doc/Makefile.am (doc/cross-options.texi): Pass src/scan-gram.l
2970	to build-aux/cross-options.pl.
2971	* src/getargs.c (usage): Document limitations of cross-options.pl.
2972	* src/scan-gram.l: Likewise.
2973
29742009-02-25  Akim Demaille  <demaille@gostai.com>
2975
2976	Copyright years.
2977	* data/glr.c: Add 2007 and 2008 here, consistenly with the comments.
2978
29792008-12-08  Akim Demaille  <demaille@gostai.com>
2980
2981	Install autoconf as a submodule to get m4sugar.
2982	* .gitmodules: Add submodules/autoconf.
2983	* data/m4sugar/foreach.m4, data/m4sugar/m4sugar.m4: Now links into
2984	submodules/autoconf.
2985
29862008-11-17  Joel E. Denny  <jdenny@ces.clemson.edu>
2987
2988	Simplify last patch slightly.
2989	* src/getargs.c (getargs): Here.
2990
29912008-11-17  Joel E. Denny  <jdenny@ces.clemson.edu>
2992
2993	Fix last warning from --enable-gcc-warnings.
2994	* src/getargs.c (getargs): Don't assign const address to non-const
2995	pointer.
2996
29972008-11-17  Di-an Jan  <dianj@freeshell.org>
2998
2999	Handle --enable-gcc-warnings.
3000	* src/getargs.c (command_line_location): Set parameters to void.
3001
30022008-11-11  Akim Demaille  <demaille@gostai.com>
3003
3004	AT_FULL_COMPILE.
3005	* tests/actions.at, tests/regression.at: Use it.
3006
30072008-11-07  Akim Demaille  <demaille@gostai.com>
3008
3009	Pass command line location to skeleton_arg and language_argmatch.
3010	* src/getargs.h, src/getargs.c (skeleton_arg, language_argmatch):
3011	The location argument is now mandatory.
3012	Adjust all dependencies.
3013	(getargs): Use command_line_location.
3014
30152008-11-07  Akim Demaille  <demaille@gostai.com>
3016
3017	-D, --define.
3018	* src/getargs.c (usage): Document -D.
3019	Fix help string for --locations.
3020	(command_line_location): New.
3021	(short_options, long_options, getargs): Support -D, --define.
3022	(getargs): Move -d support at the right place.
3023	* doc/bison.texinfo (Bison Options): Update.
3024	* tests/input.at (%define, --define): New.
3025
30262008-11-07  Akim Demaille  <demaille@gostai.com>
3027
3028	Initialize the muscle table before parsing the command line.
3029	* src/getargs.c (quotearg.h, muscle_tab.h): Include.
3030	(getargs): Define file_name.
3031	* src/main.c (main): Initialize muscle_tab before calling
3032	getargs.
3033	* src/muscle_tab.c (muscle_init): No longer define file_name, as
3034	its value is not available yet.
3035
30362008-11-09  Akim Demaille  <demaille@gostai.com>
3037
3038	Require the generation of parse-gram.output.
3039	* src/Makefile.am (YACC): Pass --report=all.
3040
30412009-04-06  Joel E. Denny  <jdenny@ces.clemson.edu>
3042
3043	* NEWS (2.5): New stub.
3044
30452009-04-06  Joel E. Denny  <jdenny@ces.clemson.edu>
3046
3047	Fix options documentation.
3048	* build-aux/cross-options.pl: As in --help output, write optional
3049	arguments as [=ARG] not =[ARG].
3050	* doc/bison.texinfo (Bison Options): Add -W/--warnings argument.
3051
30522008-11-07  Akim Demaille  <demaille@gostai.com>
3053
3054	Fix --help.
3055	* src/getargs.c (usage): Fix help string for -W.
3056
30572008-11-07  Akim Demaille  <demaille@gostai.com>
3058
3059	Handle more general types of option arguments.
3060	* build-aux/cross-options.pl: The argument ends at the first
3061	space, not the first non-symbol character.
3062	Use @var for each word appearing the argument description.
3063
30642009-04-04  Joel E. Denny  <jdenny@ces.clemson.edu>
3065
3066	Remove spurious initial empty lines.
3067	* data/location.cc: End the @output lines with an @.
3068
30692008-11-04  Akim Demaille  <demaille@gostai.com>
3070
3071	Remove spurious initial empty lines.
3072	* data/glr.c, data/glr.cc, data/lalr1.cc, data/lalr1.java,
3073	* data/yacc.c: End the @output lines with an @.
3074
30752009-04-04  Joel E. Denny  <jdenny@ces.clemson.edu>
3076
3077	Replace BISON_PROG_GNU_M4 with Autoconf's AC_PROG_GNU_M4.
3078	If the first m4 in $PATH is wrong, it keeps looking.  Moreover, its
3079	requirements for a correct m4 are stricter.
3080	* m4/m4.m4: Replace with Autoconf 2.63's m4/m4.m4.
3081	* configure.ac: Update to use AC_PROG_GNU_M4.
3082	Reported by Eric Blake.
3083
30842009-04-03  Joel E. Denny  <jdenny@ces.clemson.edu>
3085
3086	Help with updating web manual.
3087	* HACKING: Incorporate instructions from gnulib/doc/README.
3088	* bootstrap.conf (gnulib_modules): Add gendocs.
3089
30902009-04-03  Joel E. Denny  <jdenny@ces.clemson.edu>
3091
3092	Fix strange %define locations for default values.
3093	Reported by Akim Demaille at
3094	<http://lists.gnu.org/archive/html/bug-bison/2007-12/msg00001.html>
3095	and discussed again starting at
3096	<http://lists.gnu.org/archive/html/bison-patches/2008-11/msg00102.html>.
3097	* data/bison.m4 (b4_percent_define_default): Leave syncline blank
3098	because location information is bogus.
3099	Use angle brackets to delimit fake file name because square brackets
3100	look like underexpanded m4.  Choose a better fake file name.
3101	Use negative line numbers.
3102	* src/muscle_tab.c (muscle_percent_define_default): Likewise.
3103	* src/location.c (location_print): If line for a boundary is negative,
3104	only print that boundary's file name.
3105	* src/location.h: Document that.
3106	* tests/skeletons.at (%define Boolean variables: invalid skeleton
3107	defaults): Update output.
3108
31092008-11-07  Akim Demaille  <demaille@gostai.com>
3110
3111	Locations without columns for command line arguments.
3112	* src/location.c (location_print): Don't display negative columns.
3113	* src/location.h: Document this.
3114
31152009-02-03  Joel E. Denny  <jdenny@ces.clemson.edu>
3116
3117	Add reminder about uploading public key to keys.gnupg.net.
3118	* HACKING (Release Procedure): Here.
3119
31202009-03-31  Akim Demaille  <demaille@gostai.com>
3121
3122	bootstrap: --help to stdout.
3123	* bootstrap (usage): Don't send --help to stderr.
3124	Use a here doc instead of a long string.
3125
31262009-03-31  Akim Demaille  <demaille@gostai.com>
3127
3128	bootstrap: README-hacking no longer exists
3129	* bootstrap (checkout_only_file): Set to HACKING.
3130
31312009-03-26  Akim Demaille  <demaille@gostai.com>
3132
3133	doc: merge HACKING and README-hacking.
3134	Two files is confusing.
3135	Reported by Alexandre Duret-Lutz.
3136
3137	* README-hacking: Merge into...
3138	* HACKING (Working from the repository): here.
3139
31402009-03-26  Akim Demaille  <demaille@gostai.com>
3141
3142	doc: update README-hacking.
3143	* README-hacking: We now use git and git submodules.
3144	Reported by Ralf Wildenhues and Alexandre Duret-Lutz.
3145
31462009-03-26  Akim Demaille  <demaille@gostai.com>
3147
3148	lalr1.cc: avoid GCC 4.3 warnings.
3149	GCC 4.3 now warns about "a || b && c" and asks for explicit
3150	parentheses.
3151	Reported by Alexandre Duret-Lutz.
3152	* data/location.cc: Update copyright years.
3153	(Position::operator==): Use parens to make precedence explicit.
3154	Compare lines and columns first, as they are more likely to be
3155	different, and they are faster to compare.
3156
31572009-03-26  Akim Demaille  <demaille@gostai.com>
3158
3159	gnulib: update.
3160	* gnulib: Update to latest.
3161	* lib/Makefile.am (AM_CPPFLAGS): It is now defined by gnulib, so
3162	use +=.
3163
31642009-01-08  Akim Demaille  <demaille@gostai.com>
3165
3166	Fix grep portability issues.
3167	Grep on Solaris does not support -q.
3168	Reported by Summum Bonum.
3169
3170	* NEWS: Add a stub for 2.4.2.
3171	* THANKS: Add Summum Bonum.
3172	* tests/atlocal.in (EGREP): New.
3173	(CC, CXX, XSLTPROC): Make it possible to override them via
3174	envvars.
3175	* tests/java.at: Use $EGREP instead of egrep.
3176	Use AT_CHECK's ignore instead of grep's -q.
3177
31782008-12-11  Joel E. Denny  <jdenny@ces.clemson.edu>
3179
3180	Version 2.4.1.
3181	* NEWS: Set version and date.
3182	* lib/Makefile.am: Update copyright year.
3183	* tests/atlocal.in: Update copyright year.
3184
31852008-12-11  Joel E. Denny  <jdenny@ces.clemson.edu>
3186
3187	Semicolon feature removal is not about future language support.
3188	* NEWS: The semicolon feature is no longer active for newer languages,
3189	so don't claim that it causes trouble for them.
3190
31912008-12-11  Joel E. Denny  <jdenny@ces.clemson.edu>
3192
3193	* gnulib: Update submodule to HEAD.
3194
31952008-12-09  Akim Demaille  <demaille@gostai.com>
3196
3197	Update data/README.
3198	* data/README: Document glr.cc, lalr1.java, m4sugar and xslt.
3199
32002008-12-05  Eric Blake  <ebb9@byu.net>
3201
3202	Build testsuite with newer autoconf.
3203	* tests/output.at (m4_expand): Don't override in newer autoconf,
3204	where the underlying implementation changed.
3205	* tests/cxx-type.at (_AT_RESOLVED_GLR_OUTPUT)
3206	(_AT_RESOLVED_GLR_OUTPUT_WITH_LOC, _AT_AMBIG_GLR_OUTPUT)
3207	(_AT_AMBIG_GLR_OUTPUT_WITH_LOC, _AT_GLR_STDERR)
3208	(_AT_VERBOSE_GLR_STDERR): Expand to double-quoted strings,
3209	since some of them contain unbalanced ')'.
3210
32112008-11-19  Joel E. Denny  <jdenny@ces.clemson.edu>
3212
3213	* NEWS: Clarify a little.
3214
32152008-11-19  Joel E. Denny  <jdenny@ces.clemson.edu>
3216
3217	* NEWS: Update for recent changes.
3218
32192008-11-18  Joel E. Denny  <jdenny@ces.clemson.edu>
3220
3221	Fix unexpanded macros in GLR defines file.
3222	Reported by Csaba Raduly at
3223	<http://lists.gnu.org/archive/html/bug-bison/2008-11/msg00048.html>.
3224	* THANKS (Csaba Raduly): Add.
3225	* data/glr.c: Fix overquoting on b4_prefix for yylval and yylloc.
3226	* tests/calc.at (_AT_DATA_CALC_Y): If %defines is specified, generate
3227	lexer in a separate module that includes the defines file.
3228	(AT_CHECK_CALC): Use AT_FULL_COMPILE and request compilation of lexer
3229	source.
3230	* tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Push AT_DEFINES_IF.
3231	Adjust AT_LOC and AT_VAL to use AT_NAME_PREFIX.
3232	(AT_BISON_OPTION_POPDEFS): Pop AT_DEFINES_IF.
3233	(AT_DATA_SOURCE_PROLOGUE): New.
3234	(AT_DATA_GRAMMAR_PROLOGUE): Use AT_DATA_SOURCE_PROLOGUE.
3235	(AT_DATA_SOURCE): New.
3236	(AT_FULL_COMPILE): New, copied from master branch and extended to
3237	support an additional source file.
3238
32392008-11-17  Joel E. Denny  <jdenny@ces.clemson.edu>
3240
3241	Don't let maintainer-*-check targets force a version update.
3242	* cfg.mk (_is-dist-target): Implement.  maintainer-check* was already
3243	handled.
3244
32452008-11-17  Di-an Jan  <dianj@freeshell.org>
3246
3247	* doc/bison.texinfo: Synchronize ``Detail Node Listing''.
3248	Align menus.  Adjust word wrapping.  Use node names for menu names.
3249	(Examples): Don't abbreviate node names.
3250	(LocalWords): Remove abbreviations.
3251	(Copying): Make description a sentence.
3252	(Java Action Features): Remove period to match the rest of menu.
3253
32542008-11-11  Paolo Bonzini  <bonzini@gnu.org>
3255
3256	* bootstrap.conf: Replace m4/warning.m4 with warnings module.
3257	* configure.ac: Adjust usage.
3258	* lib/Makefile.am: Replace $(WARNING_CFLAGS) with $(WARN_CFLAGS).
3259	* src/Makefile.am: Replace $(WARNING_CFLAGS) with $(WARN_CFLAGS).
3260	* tests/atlocal.in: Replace $(WARNING_*FLAGS) with $(WARN_*FLAGS).
3261
32622008-11-07  Joel E. Denny  <jdenny@ces.clemson.edu>
3263
3264	Don't add a semicolon to actions for %skeleton or %language.
3265	It breaks Java test cases as reported by Akim Demaille.
3266	* src/scan-code.l: Implement.
3267
32682008-11-07  Joel E. Denny  <jdenny@ces.clemson.edu>
3269
3270	Clean up %skeleton and %language priority implementation.
3271	* src/getargs.c (skeleton_prio): Use default_prio rather than 2, and
3272	remove static qualifier because others will soon need to see it.
3273	(language_prio): Likewise.
3274	(getargs): Use command_line_prio rather than 0.
3275	* src/getargs.h (command_line_prio, grammar_prio, default_prio): New
3276	enum fields.
3277	(skeleton_prio): Extern it.
3278	(language_prio): Extern it.
3279	* src/parse-gram.y: Use grammar_prio rather than 1.
3280
32812008-11-04  Akim Demaille  <demaille@gostai.com>
3282
3283	* NEWS: Mention the trailing semicolon in action.
3284
32852008-11-04  Akim Demaille  <demaille@gostai.com>
3286
3287	Reformat NEWS.
3288	* NEWS: Use more outline-mode markup.
3289	Suggested by Jim Meyering.
3290
32912008-11-04  Joel E. Denny  <jdenny@ces.clemson.edu>
3292
3293	Fix user actions without a trailing semicolon.
3294	Reported by Sergei Steshenko at
3295	<http://lists.gnu.org/archive/html/bug-bison/2008-11/msg00001.html>.
3296	* THANKS (Sergei Steshenko): Add.
3297	* src/scan-code.l (SC_RULE_ACTION): Fix it.
3298	* tests/regression.at (Fix user actions without a trailing semicolon):
3299	New test case.
3300
33012008-11-02  Joel E. Denny  <jdenny@ces.clemson.edu>
3302
3303	Initiate further development.
3304	* NEWS: Create an empty section for new entries.
3305	* gnulib: Update submodule to HEAD.
3306
33072008-11-02  Joel E. Denny  <jdenny@ces.clemson.edu>
3308
3309	* NEWS: Version 2.4.
3310
33112008-11-02  Joel E. Denny  <jdenny@ces.clemson.edu>
3312
3313	Prepare for next release.
3314	* NEWS: Briefly mention changes since 2.3b.
3315	* README: Say GNU m4 1.4.6, which we've been requiring in release
3316	announcements already, not 1.4.3, which breaks the build.
3317
33182008-11-02  Joel E. Denny  <jdenny@ces.clemson.edu>
3319
3320	Say %language is experimental.
3321	We're thinking of extending it's effect on output file naming.  See the
3322	thread at
3323	<http://lists.gnu.org/archive/html/bison-patches/2008-10/msg00003.html>.
3324	* NEWS: Say it's experimental.
3325	* doc/bison.texinfo (Decl Summary): Say it's experimental, and so don't
3326	recommend it over %skeleton for now.
3327	(Bison Options): Likewise.
3328	(C++ Bison Interface): Use %skeleton not %language.
3329	(Calc++ Parser): Use %skeleton not %language.
3330	* src/getargs.c (usage): Say it's experimental.
3331
33322008-11-01  Di-an Jan  <dianj@freeshell.org>
3333	    Paolo Bonzini  <bonzini@gnu.org>
3334
3335	Support all Java parser class modifiers.
3336	* data/java.m4 (b4_percent_define_get3): New.
3337	(b4_final_if, b4_strictfp_if): New.
3338	* data/lalr1.java (final, strictfp, extends, implements): Support.
3339	* doc/bison.texinfo (final, strictfp, extends, implements): Add
3340	documentation.
3341	* tests/java.at (AT_CHECK_JAVA_MINIMAL): New.
3342	(AT_CHECK_JAVA_MINIMAL_W_LEXER): New.
3343	(AT_CHECK_JAVA_GREP): New.
3344	(Java parser class modifiers): New test.
3345	(Java parser class extends and implements): New test.
3346
3347	Model exception propagation better with throws and lex_throws.
3348	* data/java.m4 (b4_list2): New.
3349	(throws): Change default.
3350	* data/lalr1.java (yyaction): Add throws.
3351	(parse): Add lex_throws in addition to throws.
3352	* doc/bison.texinfo (throws, lex_throws): Add documentation.
3353	* tests/java.at (Java throws specifications): New test.
3354
3355	Improve documentation for Java parsers.
3356	* doc/bison.texinfo (Java Parsers): Add subsections.
3357	Don't quote first argument of %define.
3358	(Java Bison Interface): Document output files.  Move documentation
3359	of parser class and merge into Java Parser Interface.  Document
3360	features that error out.  Document directives with no effect.
3361	Move note about Javadoc higher.
3362	(Java Semantic Values): Explicitly mention stype.
3363	Document that generic types cannot be used.
3364	(Java Location Values): Use @deftypeivar.  Document constructors.
3365	Correct return value for toString.
3366	(Java Parser Interface): List undocumented constants/fields.
3367	Move documentation of fields added by %parse-param closer to list
3368	of members.  Document that token names are added as fields.
3369	Document constructors accurately.  Remove error method.
3370	(Java Scanner Interface): Move note on %pure-parser to Java Bison
3371	Interface.  Describe %code lexer and yylex accutately.
3372	Remove documentation that does not match the code.
3373	(Java Action Features): New.
3374	(Java Differences): Add reference.  Add item on semantic values.
3375	Add note about @{ ... @}.  Clarify %% epilogue placement.
3376	(Java Declarations Summary): New.
3377
3378	Fix Java skeleton.
3379	* data/java.m4 (b4_prefix): Correct quoting for m4_define_default.
3380	(b4_remove_comma): Quote test argument.
3381	(b4_identification): Remove "bison" field.
3382	* tests/java.at (Java parser class and package names): New test.
3383	(Java %parse-param and %lex-param): New test.
3384	(Java stype, position_class and location_class): New test.
3385
33862008-10-31  Di-an Jan  <dianj@freeshell.org>
3387
3388	* data/lalr1.jave: Update copyright years.
3389	(YYParser): Correct name of "generated from" file in Javadoc:
3390	use b4_file_name instead of @ofile@.
3391	(Location constructor): Correct Javadoc parameter name.
3392	(yylloc): Add missing opening m4 quote after b4_location_if.
3393	This removes a stray [ in the Javadoc of Lexer.getStartPos.
3394	(Lexer.yyerror): Fix incorrect m4 and Javadoc.
3395	(YYParser constructor): Correct Javadoc parameter name.
3396
33972008-10-30  Joel E. Denny  <jdenny@ces.clemson.edu>
3398
3399	Always put auxiliary code files in the same dir as other output files.
3400	* src/files.c (compute_file_name_parts): When the user specifies
3401	--output but not --file-prefix, extract the directory prefix from the
3402	file prefix not from the grammar file name.  This affects the location
3403	of files like location.hh generated by the C++ skeleton.  The includes
3404	in the other output files require this fix.
3405	* tests/output.at (AT_CHECK_OUTPUT): Automatically create directories
3406	for expected output files.
3407	(Output files): Add a test for the above.
3408
34092008-10-29  Joel E. Denny  <jdenny@ces.clemson.edu>
3410
3411	* gnulib: Update submodule to HEAD.
3412
34132008-10-28  Joel E. Denny  <jdenny@ces.clemson.edu>
3414
3415	Update copyright year.
3416	* src/files.c: Here.
3417
34182008-10-28  Di-an Jan  <dianj@freeshell.org>  (tiny change)
3419
3420	Don't overwrite the input file.
3421	* src/files.c (output_file_name_check): Fatal error if using input file
3422	for output.
3423	* tests/output.at: (AT_CHECK_CONFLICTING_OUTPUT): Add return status
3424	argument.
3425	(Conflicting output files): Add test.
3426
34272008-10-28  Akim Demaille  <demaille@gostai.com>
3428
3429	Space changes.
3430	* data/lalr1.cc: Formatting changes.
3431
34322008-10-28  Akim Demaille  <demaille@gostai.com>
3433
3434	Don't define debugging functions when !YYDEBUG.
3435	* data/lalr1.cc (debug_stream, set_debug_stream)
3436	(debug_level_type, debug_level, set_debug_level): Don't
3437	declare them when YYDEBUG is not defined.
3438	The implementation are already YYDEBUG-aware.
3439
34402008-10-28  Akim Demaille  <demaille@gostai.com>
3441
3442	Prefer "continue" for empty loop bodies.
3443	* etc/bench.pl.in: Use "continue" instead of {}.
3444
34452008-10-28  Akim Demaille  <demaille@gostai.com>
3446
3447	Space and comments changes.
3448	* data/c++.m4, data/glr.c, data/lalr1.cc: Copyright year changes.
3449	* data/c.m4, data/lalr1.cc: Space changes.
3450
34512008-10-28  Akim Demaille  <demaille@gostai.com>
3452
3453	Make gnulib a submodule.
3454	* gnulib: New.
3455	* .gitmodules (gnulib): New.
3456
34572008-10-18  Joel E. Denny  <jdenny@ces.clemson.edu>
3458
3459	Fix yyerror_range for user-defined location type in C++.  Reported by
3460	Georg Sauthoff at
3461	<http://lists.gnu.org/archive/html/bug-bison/2008-08/msg00008.html>.
3462	* data/lalr1.cc (parse): Change type of yyerror_range to location_type.
3463	* THANKS (Georg Sauthoff): Add.
3464
34652008-10-18  Joel E. Denny  <jdenny@ces.clemson.edu>
3466
3467	Update several administrative files mainly to facilitate releasing.
3468	* HACKING (Administrivia): Make the git-merge-changelog notes more
3469	helpful.
3470	(Test suite): Don't say lalr1.cc is not exercised in the test suite.
3471	(Release Procedure): Update for git and add numerous details that were
3472	previously missing.
3473	* Makefile.am (EXTRA_DIST): Remove Makefile.cfg and Makefile.maint.
3474	* maint.mk (announcement): Don't list bison as a bootstrap tool so
3475	that announcements don't claim we bootstrapped with whatever bison
3476	happened to be in PATH.  Add flex as a bootstrap tool.
3477	* Makefile.maint: Remove, previously replaced by maint.mk.
3478	* Makefile.cfg: Remove, and migrate settings to...
3479	* cfg.mk: ... here for the sake of `make announcement'.
3480	* bootstrap.conf (gnulib_modules): Add announce-gen.
3481	* README: Say GNU Bison instead of just Bison.  Suggested by Karl
3482	Berry.
3483
34842008-10-08  Di-an Jan  <dianj@freeshell.org>  (tiny change)
3485
3486	Small but important bugfixes for the Java skeleton.
3487	* data/lalr1.java (yyerror): Change Location to b4_location_type.
3488	(yy_symbol_print): Call toString on yyvaluep.
3489
34902008-08-29  Akim Demaille  <demaille@gostai.com>
3491
3492	Clarify UPDATED use.
3493	* doc/bison.texinfo: It refers to the last edition of this file,
3494	not to the release date of Bison.
3495	Reported by Joel E. Denny.
3496
34972008-08-29  Akim Demaille  <demaille@gostai.com>
3498
3499	* README: Update FAQ pointer.
3500	Reported by Joel E. Denny.
3501
35022008-08-27  Eric Blake  <ebb9@byu.net>
3503
3504	Resync m4sugar from autoconf.
3505	* data/m4sugar/m4sugar.m4 (m4_defn, m4_popdef, m4_undefine)
3506	(m4_init): Adjust to latest m4.git changes.
3507	(m4_mapall_sep, _m4_list_cmp, m4_version_compare): Reduce side
3508	effects.
3509	* data/m4sugar/foreach.m4 (_m4_shiftn): Fix off-by-one bug.
3510	(_m4_list_cmp): Reduce side effects.
3511
35122008-08-27  Akim Demaille  <demaille@gostai.com>
3513
3514	Check yyerrok in calc.at.
3515	* tests/calc.at (calc.y): Use yyerrok on "( error )".
3516	(AT_CHECK_CALC): Add a check that ensures that yyerrok works as
3517	expected.
3518
35192008-08-27  Akim Demaille  <demaille@gostai.com>
3520
3521	Support yyerrok in lalr1.cc.
3522	YYBACKUP is still to import back into lalr1.cc.
3523	* data/lalr1.cc (yyerrork, yyclearin, YYRECOVERING): Define.
3524
35252008-08-26  Joel E. Denny  <jdenny@ces.clemson.edu>
3526
3527	For maintainer-check*, don't recompile for a $(VERSION) update.
3528	* cfg.mk: New file.
3529	(_is-dist-target): Override the one in GNUmakefile.
3530	* Makefile.am (EXTRA_DIST): Add cfg.mk.
3531
35322008-08-26  Joel E. Denny  <jdenny@ces.clemson.edu>
3533
3534	Update for recent change to gnulib.
3535	* src/parse-gram.y: Don't include strverscmp.h.  It comes from
3536	string.h now.
3537
35382008-08-15  Eric Blake  <ebb9@byu.net>
3539
3540	Remaining m4sugar merge from autoconf.
3541	* data/m4sugar/m4sugar.m4: Copy entire file from autoconf.
3542	* data/m4sugar/foreach.m4: New file, copied from autoconf.
3543	* data/Makefile.am (dist_m4sugar_DATA): Distribute it.
3544	* src/output.c (output_skeleton): Tell m4 how to find it.
3545
3546	Partial m4sugar merge from autoconf: m4_map.
3547	* data/m4sugar/m4sugar.m4 (m4_fst): Delete.
3548	(m4_map, m4_map_sep, _m4_map): Rewrite more efficiently.
3549	(m4_apply, _m4_apply, m4_mapall, m4_mapall_sep): New macros.
3550	* data/java.m4 (b4_token_enums): Use more efficient short-circuit
3551	for empty list.
3552	* data/c.m4 (b4_token_defines, b4_token_enums, b4_c_ansi_formals):
3553	Likewise.
3554	(b4_parse_param_for): Avoid m4_fst, now that autoconf no longer
3555	declares it.
3556
35572008-08-07  Joel E. Denny  <jdenny@ces.clemson.edu>
3558
3559	Keep .version and PACKAGE_VERSION in sync.
3560	* Makefile.am ($(top_srcdir)/.version): Declare configure as a
3561	dependency, and add comments justifying this in more detail.  Discussed
3562	starting at
3563	<http://lists.gnu.org/archive/html/bison-patches/2008-07/msg00022.html>.
3564
35652008-08-06  Eric Blake  <ebb9@byu.net>
3566
3567	Partial m4sugar merge from autoconf: m4_shiftn.
3568	* data/m4sugar/m4sugar.m4 (m4_shiftn): Faster implementation.
3569	(m4_shift2, m4_shift3): New macros.
3570	(m4_case, m4_bmatch, m4_bpatsubsts, m4_join): Adjust clients.
3571	* data/c.m4 (b4_c_function_def, b4_c_ansi_function_def)
3572	(b4_c_ansi_function_decl, b4_c_function_call): Likewise.
3573	* data/java.m4 (b4_remove_comma): Likewise.
3574
3575	Partial m4sugar merge from autoconf: m4_wrap vs. m4 1.6.
3576	* data/m4sugar/m4sugar.m4 (m4_unquote, m4_wrap_lifo): New macros.
3577	(m4_wrap): Guarantee FIFO order, in spite of m4 1.6.
3578	(m4_init): Consolidate wrapped text into single m4_wrap.
3579	* data/bison.m4 (b4_check_user_names_wrap): Stick with LIFO order
3580	in wrapped text.
3581
35822008-08-05  Eric Blake  <ebb9@byu.net>
3583
3584	Partial m4sugar merge from autoconf: builtins, version.m4.
3585	* data/m4sugar/m4sugar.m4 (changeword): Nuke.
3586	(m4_prepend): Remove, as it is unused and inherently quadratic,
3587	whereas m4_append is linear in newer m4.
3588	(m4_mkstemp): New builtin.
3589	(m4_symbols): Make rename conditional.
3590	(m4_version_prereq): Ensure fatal error if used in bison, which
3591	intentionally lacks version.m4.
3592
3593	Fix comments in m4sugar.
3594	* data/m4sugar/m4sugar.m4: Comment changes, borrowed from autoconf.
3595
35962008-08-02  Joel E. Denny  <jdenny@ces.clemson.edu>
3597
3598	Update for recent .gitignore fix in Gnulib.
3599	* bootstrap: Back out 2008-07-18 hack now that gnulib-tool creates
3600	anchored .gitignore entries.
3601
36022008-08-02  Joel E. Denny  <jdenny@ces.clemson.edu>
3603
3604	Set gnu or gnits strictness.
3605	* configure.ac (AM_INIT_AUTOMAKE): Set gnu strictness during
3606	development and gnits strictness for releases.  Based on Eric Blake's
3607	suggestion at
3608	<http://lists.gnu.org/archive/html/bug-bison/2008-07/msg00019.html>.
3609
36102008-07-31  Paolo Bonzini  <bonzini@gnu.org>
3611
3612	* NEWS: Clarify documentation of %language.
3613
36142008-07-31  Paolo Bonzini  <bonzini@gnu.org>
3615
3616	Support usage of git-merge-changelog.
3617	* .gitattributes: New.
3618	* HACKING: Document usage of git-merge-changelog.
3619	* bootstrap: Install git-merge-changelog entries in .git/config
3620	if appropriate.
3621
36222008-07-27  Joel E. Denny  <jdenny@ces.clemson.edu>
3623
3624	Remove remaining dependence on CVS Id keyword.
3625	* ChangeLog: For the sake of people still using CVS, don't use dollars
3626	when mentioning Id.
3627	* data/xslt/bison.xsl: Remove Id from header comments, where it was
3628	unusual anyway.
3629	* data/xslt/xml2dot.xsl: Likewise.
3630	* data/xslt/xml2text.xsl: Likewise.
3631	* data/xslt/xml2xhtml.xsl: Likewise.
3632	* doc/Doxyfile.in (PROJECT_NUMBER): Don't use ID.
3633	* doc/Makefile.am (neutralize): Remove, no longer needed.
3634	(.x.1): Don't use neutralize.
3635	(edit): Don't substitute for ID.
3636	(Doxyfile): Don't define Id, and thus don't depend on ChangeLog.
3637
36382008-07-27  Joel E. Denny  <jdenny@ces.clemson.edu>
3639
3640	Fix dependence on computed configure variables.
3641	* doc/Makefile.am (common_dep): Depend on $(top_srcdir)/configure not
3642	$(top_srcdir)/configure.ac so that changes to computed variables, such
3643	as PACKAGE_VERSION, are seen.
3644	* tests/Makefile.am ($(srcdir)/package.m4): Likewise.
3645
36462008-07-20  Joel E. Denny  <jdenny@ces.clemson.edu>
3647
3648	Update copyright dates for recent changes.
3649	* Makefile.am: Here.
3650	* src/Makefile.am: Here.
3651	* src/reduce.c: Here.
3652	* tests/reduce.at: Here.
3653
36542008-07-18  Joel E. Denny  <jdenny@ces.clemson.edu>
3655
3656	Use git-version-gen for version names between releases.
3657	* .cvsignore (.tarball-version, GNUmakefile, *~): Add.
3658	* .gitignore (/.tarball-version, /GNUmakefile, /*~): Add.
3659	* .prev-version: New.
3660	* .version.in: Remove.
3661	* ChangeLog: Remove the Id previously used for capturing the CVS
3662	revision.
3663	* GNUmakefile: Remove, now copied from Gnulib.
3664	* Makefile.am: Add code suggested by comments in
3665	build-aux/git-version-gen.
3666	(EXTRA_DIST): Remove GNUmakefile, handled by Gnulib.  Add maint.mk,
3667	.prev-version, and .version.
3668	* NEWS (2.3b+): Rename to...
3669	(?.?): ... this because we're dropping the "+" version naming scheme,
3670	but, in general, we still can't be sure of our next release name.
3671	* bootstrap: Add a quick hack to remove from .gitignore the
3672	GNUmakefile entry that gnulib adds.  We already have a /GNUmakefile
3673	entry.  This should really be fixed in gnulib instead.
3674	* bootstrap.conf (gnulib_modules): Add gnumakefile.
3675	* configure.ac (AC_INIT): Set version name by invoking
3676	build-aux/git-version-gen.
3677	(AC_CONFIG_FILES): Remove .version, now generated by
3678	build-aux/git-version-gen.
3679	* maint.mk: New, copied from coreutils.
3680	* doc/.cvsignore (bison.1): Add.
3681	* doc/.gitignore (/bison.1): Add.
3682	* doc/bison.1: Remove, generated.
3683	* src/.cvsignore (revision.c): Remove.
3684	* src/.gitignore (/revision.c): Remove.
3685	* src/Makefile.am (bison_SOURCES): Remove revision.c and revision.h.
3686	(BUILT_SOURCES): Remove revision.c.
3687	(revision.c): Remove.
3688	* src/getargs.c (version): Don't print revision after the VERSION.
3689	* src/revision.h: Remove.
3690
36912008-07-16  Joel E. Denny  <jdenny@ces.clemson.edu>
3692
3693	Fix untranslatable composition of sentences.  Reported by Goran
3694	Uddeborg at
3695	<http://lists.gnu.org/archive/html/bug-bison/2008-06/msg00000.html>.
3696	* THANKS (Goran Uddeborg): Add.
3697	* src/reduce.c (reduce_print): Report the number of nonterminals and
3698	rules useless in the grammar in separate sentences.
3699	* tests/reduce.at (Useless Rules): Update output.
3700	(Reduced Automaton): Likewise.
3701	(Underivable Rules): Likewise.
3702	(Empty Language): Likewise.
3703
37042008-07-15  Joel E. Denny  <jdenny@ces.clemson.edu>
3705
3706	Fix some .gitignore and .cvsignore problems.
3707	* bootstrap (insert_sorted_if_absent): Replace all uses with...
3708	(insert_vc_ignore): ... this new function, which prepends `/' to all
3709	.gitignore entries before passing them to insert_sorted_if_absent.
3710	* bootstrap.conf (vc_ignore): Set to '.cvsignore .gitignore' so that
3711	.cvsignore files are maintained even though Bison developers run
3712	bootstrap while using Git.
3713	* .cvsignore (*.patch *.log log patches applied): Remove, apparently
3714	unneeded by Bison.
3715	(gnulib): Add.
3716	* .gitignore (/*.patch *.log log patches applied): Remove, broken and
3717	unneeded.  Reported by Eric Blake.
3718	* lib/.gitignore (/*~): Add.
3719	* po/.cvsignore, runtime-po/.cvsignore: Sync with .gitignore.
3720	* examples/calc++/.gitignore (/calc++.exe): Add.  Reported by Eric
3721	Blake.
3722	* src/.gitignore (/bison.exe): Add.  Reported by Eric Blake.
3723
37242008-07-15  Joel E. Denny  <jdenny@ces.clemson.edu>
3725
3726	Improve forward-compatibility with GNU M4.  Reported by Eric Blake at
3727	<http://lists.gnu.org/archive/html/bug-bison/2008-07/msg00000.html>.
3728	* bootstrap.conf (gnulib_modules): Add unsetenv.
3729	* lib/.gitignore, lib/.cvsignore (/unsetenv.c): Add.
3730	* m4/.gitignore, m4/.cvsignore (/environ.m4): Add.
3731	(/setenv.m4): Add.
3732	* src/output.c (output_skeleton): For the m4 invocation, pass -dV as
3733	the first argument because it may become position-dependent, and unset
3734	POSIXLY_CORRECT so Bison's skeletons have access to GNU M4 extensions.
3735	Add comments explaining these issues in more detail.
3736
37372008-07-14  Joel E. Denny  <jdenny@ces.clemson.edu>
3738
3739	Add .gitignore everywhere based on .cvsignore.
3740	* .gitignore: New.
3741	* build-aux/.gitignore: New.
3742	* data/.gitignore: New.
3743	* doc/.gitignore: New.
3744	* etc/.gitignore: New.
3745	* examples/.gitignore: New.
3746	* examples/calc++/.gitignore: New.
3747	* lib/.gitignore: New.
3748	* m4/.gitignore: New.
3749	* po/.gitignore: New.
3750	* runtime-po/.gitignore: New.
3751	* src/.gitignore: New.
3752	* tests/.gitignore: New.
3753
37542008-05-27  Joel E. Denny  <jdenny@ces.clemson.edu>
3755
3756	* NEWS (2.3b+): New section, empty for now.
3757	* configure.ac (AC_INIT): 2.3b -> 2.3b+.
3758
37592008-05-27  Joel E. Denny  <jdenny@ces.clemson.edu>
3760
3761	* NEWS (2.3b): Update release date since there has been a delay in
3762	getting the announcements and tarballs out.
3763
37642008-05-23  Joel E. Denny  <jdenny@ces.clemson.edu>
3765
3766	* NEWS: Version 2.3b.
3767	* configure.ac (AC_INIT): Likewise.
3768	(PACKAGE_COPYRIGHT_YEAR): Update to 2008.
3769
37702008-05-23  Joel E. Denny  <jdenny@ces.clemson.edu>
3771
3772	* HACKING: Don't say don't mention HACKING in the ChangeLog.  We've
3773	been doing it for years.
3774	(Test suite): Mention maintainer-push-check and maintainer-xml-check.
3775	(Release Procedure): Add FIXME about make alpha being unmaintained.
3776
37772008-05-13  Joel E. Denny  <jdenny@ces.clemson.edu>
3778
3779	* data/yacc.c: Reformat m4 a little for readability.
3780	* src/lalr.c (build_relations): Correct comment.
3781
37822008-05-12  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
3783
3784	DJGPP specific issue.
3785	* djgpp/config.sed: Fixes required to run configure scripts generated
3786	by autoconf 2.62.
3787
37882008-05-07  Joel E. Denny  <jdenny@ces.clemson.edu>
3789
3790	* HACKING (Release Procedure): translation@iro.umontreal.ca is now
3791	coordinator@translationproject.org.
3792
37932008-05-06  Joel E. Denny  <jdenny@ces.clemson.edu>
3794
3795	* THANKS: Add Eric Blake.
3796
37972008-04-23  Eric Blake  <ebb9@byu.net>
3798
3799	Revert prior patch, by working around autoconf regression.
3800	* tests/output.at (m4_expand): Add workaround for autoconf 2.62.
3801	("Output file name: ("): Uncomment test.
3802	("Output file name: )"): Likewise.
3803	Based on an idea from Noah Misch.
3804
38052008-04-21  Joel E. Denny  <jdenny@ces.clemson.edu>
3806
3807	Work-around an Autoconf 2.62 AT_SETUP bug that was not present in
3808	2.61.  Reported by Juan Manuel Guerrero at
3809	<http://lists.gnu.org/archive/html/bug-bison/2008-04/msg00011.html>.
3810	* tests/output.at ("Output file name: ("): Comment out test case for
3811	now.
3812	("Output file name: )"): Likewise.
3813
38142008-04-21  Joel E. Denny  <jdenny@ces.clemson.edu>
3815
3816	* GNUmakefile: Update git-version-gen invocation so make dist
3817	succeeds.
3818
38192008-04-21  Joel E. Denny  <jdenny@ces.clemson.edu>
3820
3821	Update to the current gnulib CVS repository, and fix trigraph handling
3822	in Bison.
3823	* bootstrap: Update gnulib CVS repository URL.
3824	(symlink_to_dir): Encapsulate the code that guarantees the destination
3825	directory exists into...
3826	(check_dst_dir): ... this new function, and...
3827	(cp_mark_as_generated): ... reuse it here so that bootstrap doesn't
3828	fail when copying files into lib/uniwidth/.
3829	* src/output.c (prepare_symbols): When writing yytname muscles, where
3830	symbol names will be encoded in C-string literals, tell quotearg to
3831	escape trigraphs.  This used to be the default in gnulib.
3832	* tests/regression.at (Token definitions): Because of the change in
3833	gnulib's quotearg behavior, string_as_id in parse-gram.y no longer
3834	escapes trigraphs in symbol names.  Thus, yytname no longer has
3835	trigraphs unnecessarily doubly escaped.  Update test case output.
3836	Extend test case to be sure Bison's own error messages will no longer
3837	have trigraphs in symbol names unnecessarily escaped once.
3838
38392008-04-20  Joel E. Denny  <jdenny@ces.clemson.edu>
3840
3841	Fix make dist infinite loop reported by Juan Manuel Guerrero at
3842	<http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00009.html>.
3843	* .cvsignore: Add .version.
3844	* .version.in: New.
3845	* bootstrap.conf (gnulib_modules): Add git-version-gen.
3846	* configure.ac (AC_CONFIG_FILES): Add .version.
3847	* build-aux/.cvsignore: Add git-version-gen.
3848
38492008-03-08  Joel E. Denny  <jdenny@ces.clemson.edu>
3850
3851	* NEWS (2.3a+): Mention that -g now takes an argument.
3852	* doc/bison.texinfo (Bison Options): Reword -W entry a little for
3853	consistency.  Update the -g and -x entries now that they take
3854	arguments.  Use brackets to indicate optional arguments.
3855	* src/getargs.c (usage): Explain the relationship between arguments of
3856	long and short options more completely.  Document --defines and -d
3857	separately since the former takes an argument but, for POSIX Yacc, the
3858	latter does not.
3859	(short_options): Let -W take an optional argument like --warnings.
3860	(getargs): Sort cases.
3861
38622008-02-28  Akim Demaille  <demaille@gostai.com>
3863
3864	* doc/bison.texinfo: Fix a few typos.
3865
38662008-02-28  Akim Demaille  <akim@epita.fr>
3867
3868	* doc/bison.texinfo (Bison Options): Document -W.
3869	Based on Joel E. Denny's NEWS entry, and Automake's documentation.
3870
38712008-02-28  Akim Demaille  <akim@epita.fr>
3872
3873	* src/getargs.c (short_options): Split and sort for readability.
3874	-g and -x take optional arguments, just like their long options.
3875	* build-aux/cross-options.pl: Use /x to make the regexp easier to
3876	understand.
3877	Fix the handling of $opt which resulted in all the argument to be
3878	considered as optional.
3879
38802008-02-22  Joel E. Denny  <jdenny@ces.clemson.edu>
3881
3882	* NEWS (2.3a+): Don't say %language is experimental.  Mention Java and
3883	say its interface is experimental.
3884	* doc/bison.texinfo (Decl Summary): In the %language entry, mention
3885	Java.
3886	(Bison Options): In the -L and --language entry, mention Java.
3887	(Java Bison Interface): Say the interface is experimental.
3888	* src/getargs.c (usage): Mention -L and --language.
3889
3890	* NEWS (2.3a+): Say the push parsing interface is experimental.
3891	* doc/bison.texinfo (Push Decl): Likewise.
3892	(Decl Summary): Likewise in the "%define api.push_pull" entry.
3893	(Push Parser Function): Likewise.
3894	(Pull Parser Function): Likewise.
3895	(Parser Create Function): Likewise.
3896	(Parser Delete Function): Likewise.
3897	(Table of Symbols): Likewise in the yypstate_delete, yypstate_new,
3898	yypull_parse, and yypush_parse entries.
3899
3900	* NEWS (2.3a+): Mention XML support, and say the schema is
3901	experimental.
3902	* doc/bison.texinfo (Bison Options): Mention -x and --xml.
3903	* src/getargs.c (usage): Say the XML schema is experimental.
3904
3905	* NEWS (2.3a+): Say option instead of flag.
3906
39072008-02-21  Wojciech Polak  <polak@gnu.org>
3908
3909	* data/xslt/xml2xhtml.xsl (xsl:template match="/"): Change footer
3910	text.
3911
39122008-02-20  Joel E. Denny  <jdenny@ces.clemson.edu>
3913
3914	Fix impure push parser compile error reported by Bob Rossi at
3915	<http://lists.gnu.org/archive/html/help-bison/2008-02/msg00023.html>.
3916	* data/yacc.c: Clean up whitespace in the output a little.
3917	(yypstate_allocated): Define for impure push parsers regardless of
3918	whether the pull interface is also requested.
3919	* tests/push.at (Push Parsing: Multiple impure instances): Extend to
3920	check impure push parsers without the pull interface.
3921
3922	* data/yacc.c (yypstate_new): Don't try to invoke yyerror since
3923	yyerror takes arguments specified by %parse-param while yypstate_new
3924	does not.
3925	* doc/bison.texinfo (Parser Create Function): Document that
3926	yypstate_new returns 0 for multiple impure parser instances.
3927	* tests/push.at (Push Parsing: Multiple impure instances): Update
3928	expected stderr output.
3929
39302008-02-19  Joel E. Denny  <jdenny@ces.clemson.edu>
3931
3932	* runtime-po/POTFILES.in (push.c): Remove.
3933
39342008-02-17  Joel E. Denny  <jdenny@ces.clemson.edu>
3935
3936	* data/Makefile.am (dist_pkgdata_DATA): Remove push.c.
3937	* data/push.c: Rename to...
3938	* data/yacc.c: ... this, overwriting it.
3939	* etc/bench.pl.in (bench_grammar): `%pure-parser'-> `%define api.pure'.
3940	`%push-pull-parser' -> `%define api.push_pull "both"'.
3941	Remove old yacc.c tests, and update push.c tests to yacc.c.
3942
39432008-02-17  Joel E. Denny  <jdenny@ces.clemson.edu>
3944
3945	* data/bison.m4 (b4_percent_code_get): Output %code block comments like
3946	`"%code top" blocks' instead of `%code "top" blocks'.
3947	* data/push.c: Import yacc.c changes from 2008-01-09 and 2007-08-03.
3948	Clean up whitespace in the output a little.
3949
39502008-02-16  Joel E. Denny  <jdenny@ces.clemson.edu>
3951
3952	Fix documentation problems reported by Tim Josling at
3953	<http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00013.html>.
3954	* NEWS (2.3a+): Mention removal of --no-parser, -n, and %no-parser.
3955	* doc/bison.texinfo (Token Decl): Token numbers are *nonnegative*
3956	integers.  Explain the effect of literal string aliases on error
3957	messages.  Copy token 0 documentation from the C++ skeleton
3958	documentation.
3959
39602008-02-16  Joel E. Denny  <jdenny@ces.clemson.edu>
3961
3962	Accept a token number in a %left, %right, or %nonassoc for POSIX
3963	conformance.  Reported by Tim Josling at
3964	<http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00010.html>.
3965	* NEWS (2.3a+): Mention.
3966	* doc/bison.texinfo (Precedence Decl): Describe how literal strings
3967	and code numbers are treated by precedence declarations.
3968	* src/parse-gram.y (precedence_declaration): Use symbols.prec instead
3969	of symbols.1.
3970	(symbols.prec): New, just like symbols.1 but uses symbol.prec instead
3971	of symbol.
3972	(symbol.prec): New, just like symbol but allows INT.
3973	* src/symtab.c (symbol_user_token_number_set): Remove an aver that no
3974	longer holds.
3975	* tests/regression.at (Token number in precedence declaration): New
3976	test case.
3977
39782008-02-06  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
3979
3980	DJGPP specific issues.
3981	* djgpp/config.bat: Add filenames that are not 8.3 clean and that must
3982	be changed.  Copyright timestamp adjusted.
3983	* djgpp/config.sed: Add filenames that are not 8.3 clean and that must
3984	be changed.  Copyright timestamp adjusted.
3985	* djgpp/config.site: Copyright timestamp adjusted.
3986	* djgpp/config_h.sed: Copyright timestamp adjusted.
3987	* djgpp/djunpack.bat: Copyright timestamp adjusted.
3988	* djgpp/fnchnage.lst: Add filenames that are not 8.3 clean to the
3989	filename translation list.
3990	* djgpp/subpipe.c (init_subpipe): Check the environment variables
3991	TMPDIR, TMP and TEMP, in that order, to determinate where the temp
3992	files shall be created.  Before trying to use the temp dir where the
3993	environment variable points to check that the dir really exists. If
3994	not default to the cwd as temp dir.  Copyright timestamp adjusted.
3995	* djgpp/subpipe.h: Copyright timestamp adjusted.
3996	* djgpp/testsuite.sed: Copyright timestamp adjusted.
3997
39982008-01-30  Paul Eggert  <eggert@cs.ucla.edu>
3999
4000	* doc/bison.texinfo: Update Back-Cover text to reflect new GNU wording.
4001
40022008-01-09  Paul Eggert  <eggert@cs.ucla.edu>
4003
4004	* data/yacc.c (yyparse): Correct the comment when locations aren't used.
4005	Problem reported by Claudio Saavedra in
4006	<http://lists.gnu.org/archive/html/bug-bison/2008-01/msg00003.html>.
4007
40082008-01-05  Wojciech Polak  <polak@gnu.org>
4009
4010	* data/xslt/xml2xhtml.xsl (xsl:template match="/"): Precede an XHTML
4011	document's title with the input grammar file name.
4012
40132007-12-22  Joel E. Denny  <jdenny@ces.clemson.edu>
4014
4015	Automate regression testing of the XML/XSLT implementation.  Discussed
4016	starting at
4017	<http://lists.gnu.org/archive/html/bison-patches/2007-11/msg00021.html>.
4018	* configure.ac (XSLTPROC): New substitution.
4019	* Makefile.am (maintainer-xml-check): New phony target invoking...
4020	* tests/Makefile.am (maintainer-xml-check): ... this new phony target
4021	invoking make maintainer-check with BISON_TEST_XML=1.
4022	* tests/atlocal.in (XSLTPROC): New.
4023	* tests/local.at (AT_BISON_CHECK): New macro to (1) instruct Valgrind
4024	not to report reachable memory when Bison is expected to have a
4025	non-zero exit status and (2) to compare XML/XSLT output with --graph
4026	and --report=all output for every working grammar when
4027	BISON_TEST_XML=1.
4028	(AT_BISON_CHECK_NO_XML): Likewise, but skip XML checks.
4029	(AT_BISON_CHECK_XML): New.
4030	(AT_QUELL_VALGRIND): New.
4031	* tests/testsuite.at (ORIGINAL_AT_CHECK): Remove this and...
4032	(AT_CHECK): ... don't redefine this since this was the old way to
4033	quell Valgrind.
4034	* tests/actions.at: Rewrite all AT_CHECK invocations for bison as
4035	AT_BISON_CHECK invocations.
4036	* tests/c++.at: Likewise.
4037	* tests/calc.at: Likewise.
4038	* tests/conflicts.at: Likewise.
4039	* tests/cxx-type.at: Likewise.
4040	* tests/existing.at: Likewise.
4041	* tests/glr-regression.at: Likewise.
4042	* tests/headers.at: Likewise.
4043	* tests/input.at: Likewise.
4044	* tests/java.at: Likewise.
4045	* tests/output.at: Likewise.
4046	* tests/push.at: Likewise.
4047	* tests/reduce.at: Likewise.
4048	* tests/regression.at: Likewise.
4049	* tests/sets.at: Likewise.
4050	* tests/skeletons.at: Likewise.
4051	* tests/synclines.at: Likewise.
4052	* tests/torture.at: Likewise.
4053	(Big triangle): Use AT_BISON_CHECK_NO_XML instead since this grammar
4054	tends to hang xsltproc.
4055	(Big horizontal): Likewise.
4056
40572007-12-08  Joel E. Denny  <jdenny@ces.clemson.edu>
4058
4059	In XML output, remove redundant class attribute on symbol element.
4060	* data/xslt/bison.xsl (xsl:key name="bison:symbolByName"): New.
4061	* data/xslt/xml2xhtml.xsl (xsl:template match="symbol"): Use it to
4062	look up a symbol to determine whether it's a nonterminal or terminal.
4063	* src/gram.c (rule_rhs_print_xml): Remove class attribute.
4064	* src/state.c (state_rule_lookahead_tokens_print_xml): Likewise.
4065
4066	Add prec/assoc information to XML output.
4067	* src/gram.c (grammar_rules_print_xml): For each rule that has a
4068	%prec, add a percent_prec attribute.
4069	* src/print-xml.c (print_grammar): For each terminal that has a
4070	precedence or associativity, add a prec or assoc attribute.
4071	(xml_indent): New.
4072	(xml_puts): Use xml_indent.
4073	(xml_printf): Use xml_indent.
4074	* src/print-xml.h (xml_indent): Prototype.
4075
4076	* tests/existing.at (GNU pic Grammar): Fix a rule miscopied from
4077	<http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00026.html>.
4078
40792007-12-08  Joel E. Denny  <jdenny@ces.clemson.edu>
4080
4081	* data/xslt/bison.xsl (bison:ruleNumber): Rename to...
4082	(bison:ruleByNumber): ... this for clarity.
4083	* data/xslt/xml2dot.xsl (xsl:template match="item"): Update.
4084	* data/xslt/xml2text.xsl (xsl:template match="item"): Update.
4085	(xsl:template match="reduction"): Update.
4086	(xsl:template match="item"): Update.
4087	(xsl:template match="reduction"): Update.
4088
4089	In the XML output, don't print the list of rules where symbols appear.
4090	Compute it in XSLT instead.  Discussed at
4091	<http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00024.html>.
4092	* data/xslt/bison.xsl (bison:ruleByLhs): New.
4093	(bison:ruleByRhs): New.
4094	* data/xslt/xml2text.xsl (xsl:template match="terminal"): Use
4095	bison:ruleByRhs.
4096	(xsl:template match="terminal/rule"): Remove.
4097	(xsl:template match="nonterminal"): Use bison:ruleByLhs and
4098	bison:ruleByRhs.
4099	(xsl:template match="nonterminal/left/rule|nonterminal/right/rule"):
4100	Remove.
4101	* data/xslt/xml2xhtml.xsl (xsl:template match="terminal"): Use
4102	bison:ruleByRhs and mode="number-link" for rule template.
4103	(xsl:template match="terminal/rule"): Remove.
4104	(xsl:template match="nonterminal"): Use bison:ruleByLhs and
4105	bison:ruleByRhs and mode="number-link" for rule template.
4106	(xsl:template match="nonterminal/left/rule|nonterminal/right/rule"):
4107	Rewrite as...
4108	(xsl:template match="rule" mode="number-link"): ... this.
4109	* src/print-xml.c (print_grammar): Don't print the list of rules.
4110
41112007-12-01  Joel E. Denny  <jdenny@ces.clemson.edu>
4112
4113	Don't let --report affect XML output; always print all information.
4114	Discussed at
4115	<http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00020.html>.
4116	* src/conflicts.c (log_resolution): Implement.
4117	* src/print-xml.c (print_core): Implement.
4118	(print_state): Implement.
4119	(print_xml): Implement.
4120
4121	* NEWS (2.3a+): Fix quotes.
4122	* src/parse-gram.y (prologue_declaration): For consistency with -v,
4123	don't let %verbose clear the list specified by --report.
4124
41252007-11-26  Akim Demaille  <akim@epita.fr>
4126
4127	* data/Makefile.am (dist_pkgdata_DATA): Ship and install bison.xsl.
4128
41292007-11-24  Joel E. Denny  <jdenny@ces.clemson.edu>
4130
4131	In the XML output, list useless and unused symbols and rules with the
4132	useful ones and add a "usefulness" attribute.  Discussed starting at
4133	<http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00017.html>.
4134	* src/gram.c (grammar_rules_partial_print_xml): Remove.
4135	(grammar_rules_print_xml): Print all rules instead of just those
4136	useful in the grammar, and add a "usefulness" attribute.
4137	* src/gram.h (grammar_rules_partial_print_xml): Remove prototype.
4138	* src/print-xml.c (print_rules_useless_in_parser): Remove.
4139	(print_grammar): Print all nonterminals instead of just useful ones,
4140	and add a "usefulness" attribute to nonterminals and terminals.
4141	(print_xml): Don't print a separate "reductions" or
4142	"rules-useless-in-parser" element.
4143	* src/reduce.c (reduce_output): Use reduce_token_unused_in_grammar.
4144	(reduce_xml): Remove.
4145	(reduce_token_unused_in_grammar): New.
4146	(reduce_nonterminal_useless_in_grammar): New.
4147	* src/reduce.h (reduce_xml): Remove prototype.
4148	(reduce_token_unused_in_grammar): Add prototype.
4149	(reduce_nonterminal_useless_in_grammar): Add prototype.
4150	* data/xslt/xml2text.xsl: Update for XML changes.
4151	* data/xslt/xml2xhtml.xsl: Update for XML changes.
4152	* tests/reduce.at (Useless Terminals): Update output.
4153	(Useless Rules): Update output.
4154	(Reduced Automaton): Update output.
4155
4156	Say "Terminals unused in grammar" instead of "Unused terminals".
4157	* NEWS (2.3a+): Update.
4158	* doc/bison.texinfo (Understanding): Update example output.
4159	* src/reduce.c (reduce_output): Implement.
4160	* data/xslt/xml2text.xsl: Implement.
4161	* data/xslt/xml2xhtml.xsl: Implement.
4162
41632007-11-18  Joel E. Denny  <jdenny@ces.clemson.edu>
4164
4165	Accept --report-file=FILE to override the default `.output' filename.
4166	* NEWS (2.3a+): Mention.
4167	* doc/bison.texinfo (Bison Options): Add an entry.
4168	* src/files.c (compute_output_file_names): Don't override
4169	spec_verbose_file if already set.
4170	* src/getargs.c (usage): Document --report-file.
4171	(REPORT_FILE_OPTION): New anonymous enum member.
4172	(long_options): Add entry for it.
4173	(getargs): Add case for it setting spec_verbose_file.
4174
4175	* build-aux/cross-options.pl: Don't record a short option just because
4176	there's an arg.
4177	* doc/.cvsignore: Add yacc.1.
4178
41792007-11-14  Akim Demaille  <akim@epita.fr>
4180
4181	* doc/yacc.1.in: New.
4182	* configure.ac, doc/Makefile.am: Adjust.
4183	* configure.ac (PACKAGE_COPYRIGHT_YEAR): New substitution, and new
4184	config.h symbol.
4185	Use AC_SUBST for assignments too.
4186	* src/getargs.c (version): Use PACKAGE_COPYRIGHT_YEAR.
4187
41882007-11-10  Joel E. Denny  <jdenny@ces.clemson.edu>
4189
4190	* src/gram.c: Remove comments that duplicate comments in gram.h.
4191
4192	When reporting useless rules and nonterminals, say "useless in grammar"
4193	instead of "useless", and say "useless in parser" instead of "never
4194	reduced".  Discussed starting at
4195	<http://lists.gnu.org/archive/html/bison-patches/2007-10/msg00033.html>.
4196	* NEWS (2.3a+): Mention this change.
4197	* data/xslt/xml2text.xsl: Update output text and expected input XML
4198	element names to match changes below.
4199	* data/xslt/xml2xhtml.xsl: Likewise.
4200	(xsl:template match="bison-xml-report"): Add missing entry in Table of
4201	Contents: "Rules useless in parser due to conflicts".
4202	* doc/bison.texinfo (Decl Summary): Reword a little.
4203	(Understanding): Update example output for changes below.
4204	* src/gram.c: (rule_useful_p): Rename to...
4205	(rule_useful_in_grammar_p): ... this.
4206	(rule_useless_p): Rename to...
4207	(rule_useless_in_grammar_p): ... this.
4208	(rule_never_reduced_p): Rename to...
4209	(rule_useless_in_parser_p): ... this.
4210	(grammar_rules_print): Update for renames.
4211	(grammar_rules_print_xml): Update for renames.
4212	(grammar_rules_never_reduced_report): Rename to...
4213	(grammar_rules_useless_report): ... this since it is used for either
4214	kind of useless rule.
4215	* src/gram.h: Reword comments and update function names in prototypes.
4216	* src/main.c (main): Say "rule useless in parser due to conflicts".
4217	* src/print-xml.c (print_rules_never_reduced): Rename to...
4218	(print_rules_useless_in_parser): ... this, and rename output XML
4219	element "rules-never-reduced" to "rules-useless-in-parser".
4220	(print_xml): Update for rename.
4221	* src/print.c (print_results): Say "Rules useless in parser due to
4222	conflicts".
4223	* src/reduce.c (reduce_grammar_tables): Say "rule useless in grammar".
4224	(nonterminals_reduce): Say "nonterminal useless in grammar".
4225	(reduce_output): Say "Nonterminals useless in grammar".
4226	Say "Rules useless in grammar".
4227	(reduce_xml): Rename output XML element "useless" to
4228	"useless-in-grammar".
4229	(reduce_print): Don't report the count of grammatically useless rules
4230	as "rules never reduced" just because %yacc is specified.
4231	In the correct report of this count, say nonterminal(s) and rule(s)
4232	"useless in grammar".
4233	* tests/conflicts.at (S/R in initial): Update expected output.
4234	(Defaulted Conflicted Reduction): Likewise.
4235	(Unreachable States After Conflict Resolution): Likewise.
4236	* tests/existing.at (GNU pic Grammar): Likewise.
4237	* tests/reduce.at (Useless Nonterminals): Likewise.
4238	(Useless Rules): Likewise.
4239	(Reduced Automaton): Likewise.
4240	(Underivable Rules): Likewise.
4241	(Empty Language): Likewise.
4242
42432007-11-09  Joel E. Denny  <jdenny@ces.clemson.edu>
4244
4245	* data/bison.m4 (b4_cat): Put a newline after the end delimiter of the
4246	here document and before the EOF so that BSD's implementation of Bourne
4247	shell doesn't parse the delimiter as part of the here document.
4248	* doc/.cvsignore: Add cross-options.texi.
4249	* src/getargs.c (usage): Add a blank line after the warning categories.
4250
42512007-11-08  Paolo Bonzini  <bonzini@gnu.org>
4252
4253	* data/lalr1.java (Lexer): Remove usage of b4_pure_if.
4254
42552007-11-05  Akim Demaille  <akim@epita.fr>
4256
4257	Remove Id: from bison.1.
4258	* doc/Makefile.am (remove_time_stamp): Include the sed invocation.
4259	(perl -0777 -pi -e 's/\.PP\nId): New.
4260	(.x.1): Use it to ignore the version control revision.
4261
42622007-11-05  Akim Demaille  <demaille@gostai.com>
4263
4264	* build-aux/Makefile.am: Ship cross-options.pl.
4265	* doc/Makefile.am: Always refer to cross-options.texi with
4266	$(srcdir).
4267	(MAINTAINERCLEANFILES): Add it.
4268
42692007-11-04  Akim Demaille  <demaille@gostai.com>
4270
4271	Generate the long/short option cross-table.
4272	* build-aux/cross-options.pl: New.
4273	* doc/Makefile.am (cross-options.texi): New.
4274	* doc/bison.texinfo: Use it.
4275
42762007-11-04  Akim Demaille  <demaille@gostai.com>
4277
4278	Generate bison.1 using help2man.
4279	* doc/common.x, doc/bison.x: New.
4280	* doc/Makefile.am (bison.1, .x.1): New.
4281	The code is taken from autoconf-2.61/man/Makefile.am.
4282	* configure.ac: Look for help2man.
4283
42842007-11-04  Akim Demaille  <demaille@gostai.com>
4285
4286	Complete --help.
4287	* src/getargs.c (usage): Document -W, make it clear that -d,
4288	-g and -x have optional arguments.
4289
42902007-11-04  Akim Demaille  <demaille@gostai.com>
4291
4292	Find sha1sum when named gsha1sum.
4293	* bootstrap (find_tool): New.
4294	($SHA1SUM): New.
4295
42962007-10-28  Joel E. Denny  <jdenny@ces.clemson.edu>
4297
4298	Deprecate %pure-parser and add `%define api.pure'.  Discussed starting
4299	at
4300	<http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00006.html>.
4301	* NEWS (2.3a+): Mention.
4302	* data/bison.m4 (b4_pure_if): Don't define it here.
4303	* data/c.m4 (b4_identification): Depend on individual skeletons to
4304	define b4_pure_flag, b4_push_flag, or b4_pull_flag if they use the
4305	values of the %define variables api.pure or api.push_pull.  Define
4306	YYPURE, YYPUSH, and YYPULL accordingly.
4307	* data/glr.c: Define b4_pure_if based on `%define api.pure' unless
4308	glr.cc has already defined b4_pure_flag.
4309	* data/push.c: Define b4_pure_if based on `%define api.pure'.
4310	Remove YYPUSH and YYPULL since they're back in b4_identification again.
4311	* data/yacc.c: Define b4_pure_if based on `%define api.pure'.
4312	* doc/bison.texinfo (Pure Decl): Update.
4313	(Push Decl): Update.
4314	(Decl Summary): Add api.pure to %define entry.
4315	In %pure-parser entry, say it's deprecated and reference %define.
4316	(Pure Calling): Update.
4317	(Error Reporting): Update.
4318	(C++ Scanner Interface): Update.
4319	(How Can I Reset the Parser): Update.
4320	(Table of Symbols): In %pure-parser entry, say it's deprecated and
4321	reference %define.
4322	* src/getargs.c (pure_parser): Remove global variable.
4323	* src/getargs.h (pure_parser): Remove extern.
4324	* src/output.c (prepare): Don't define pure_flag muscle.
4325	* src/parse-gram.y (prologue_declaration): Implement %pure-parser as a
4326	wrapper around `%define api.pure'.
4327	* tests/calc.at (Simple LALR Calculator): Update.
4328	(Simple GLR Calculator): Update.
4329	* tests/cxx-type.at (GLR: Resolve ambiguity, pure, no locations):
4330	Update.
4331	(GLR: Resolve ambiguity, pure, locations): Update.
4332	(GLR: Merge conflicting parses, pure, no locations): Update.
4333	(GLR: Merge conflicting parses, pure, locations): Update.
4334	* tests/glr-regression.at (Uninitialized location when reporting
4335	ambiguity): Update
4336	* tests/input.at (Unused %define api.pure): New test case.
4337	* tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Update definition for
4338	AT_PURE_IF and AT_PURE_AND_LOC_IF.
4339	* tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update.
4340
43412007-10-28  Joel E. Denny  <jdenny@ces.clemson.edu>
4342
4343	%define push_pull -> %define api.push_pull.  Discussed starting at
4344	<http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00005.html>.
4345	* data/push.c: Expect the new name.
4346	* data/yacc.c: Likewise.
4347	* doc/bison.texinfo (Push Decl): Update.
4348	(Decl Summary): Update %define entry.
4349	(Push Parser Function): Update.
4350	(Pull Parser Function): Update.
4351	(Parser Create Function): Update.
4352	(Parser Delete Function): Update.
4353	* tests/calc.at (Simple LALR Calculator): Update.
4354	* tests/input.at (%define enum variables): Update.
4355	* tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update.
4356	(Push Parsing: Multiple impure instances): Update.
4357	(Push Parsing: Unsupported Skeletons): Update.
4358	* tests/torture.at (Exploding the Stack Size with Alloca): Update.
4359	(Exploding the Stack Size with Malloc): Update.
4360
4361	* NEWS (2.3a+): Add an entry for the push parser, and clean up the
4362	other entries some.
4363
43642007-10-27  Joel E. Denny  <jdenny@ces.clemson.edu>
4365
4366	For the XML output's terminal element, rename @number to @token-number,
4367	and add @symbol-number.  In the nonterminal element, rename @number to
4368	@symbol-number.  Discussed starting at
4369	<http://lists.gnu.org/archive/html/bison-patches/2007-10/msg00040.html>.
4370	* data/xslt/xml2text.xsl (xsl:template match="terminal"): Update for
4371	renames.
4372	(xsl:template match="nonterminal"): Likewise.
4373	* data/xslt/xml2xhtml.xsl (xsl:template match="terminal"): Likewise.
4374	(xsl:template match="nonterminal"): Likewise.
4375	* src/print-xml.c (print_grammar): Implement.
4376
43772007-10-21  Joel E. Denny  <jdenny@ces.clemson.edu>
4378
4379	* data/xslt/xml2dot.xsl (xsl:template match="automaton/state"): After
4380	2007-10-11 change, the child elements here are items not rules.
4381	(xsl:template match="item"): New.
4382	(xsl:template match="rule"): Update for new reduced itemset.
4383	(xsl:template match="point"): Remove.
4384	(xsl:template match="empty"): For consistency with --graph, don't
4385	output "/* empty */".
4386	* data/xslt/xml2text.xsl (xsl:template match="terminal"): When invoking
4387	line-wrap, don't pass a negative value as first-line-length since this
4388	won't work with the following changes.
4389	(xsl:template name="line-wrap"): Simplify slightly.
4390	(xsl:template name="ws-search"): Eliminate recursion.
4391	* src/print_graph.c (print_core): Don't print a reduction's lookahead
4392	set next to an item whose dot is not at the end of the RHS even if it
4393	happens to be associated with the same rule.
4394
43952007-10-19  Joel E. Denny  <jdenny@ces.clemson.edu>
4396
4397	Add %define lr.keep_unreachable_states.
4398	* NEWS (2.3a+): Mention it in the entry for unreachable state removal.
4399	* doc/bison.texinfo (Decl Summary): Mention it in the %define entry.
4400	* src/main.c (main): Implement it.
4401	* tests/conflicts.at (Unreachable States After Conflict Resolution):
4402	Extend to test it, and fix a typo.
4403
44042007-10-19  Joel E. Denny  <jdenny@ces.clemson.edu>
4405
4406	* NEWS (2.3a+): Add entry for recent .output file lookahead set fix.
4407	* doc/bison.texinfo (Understanding): Remove a bogus lookahead set in
4408	the example .output text.
4409	* tests/regression.at (Extra lookahead sets in report): Improve wording
4410	of comments.
4411
44122007-10-17  Wojciech Polak  <polak@gnu.org>
4413
4414	* src/print-xml.c (print_grammar): Renamed
4415	<terminal> and <nonterminal> attributes:
4416	"type" to "number" and "symbol" to "name".
4417	* data/xslt/xml2text.xsl (xsl:template match="terminal"):
4418	Use new attribute names.
4419	(xsl:template match="nonterminal"): Likewise.
4420	* data/xslt/xml2xhtml.xsl: Likewise.
4421
44222007-10-17  Joel E. Denny  <jdenny@ces.clemson.edu>
4423
4424	* doc/bison.texinfo (Bison Options): Add entry for --print-datadir.
4425	(Option Cross Key): Likewise.
4426
4427	* src/print-xml.c (print_core): Don't print a reduction's lookahead set
4428	next to an item whose dot is not at the end of the RHS even if it
4429	happens to be associated with the same rule.
4430	* src/print.c (print_core): Likewise.
4431	* tests/conflicts.at (Unresolved SR Conflicts): Update output.
4432	(Resolved SR Conflicts): Update output.
4433	* tests/regression.at (Extra lookahead sets in report): New test case.
4434
44352007-10-11  Wojciech Polak  <polak@gnu.org>
4436
4437	* src/print-xml.c (print_core): Remove item set
4438	redundancy.
4439	* data/xslt/bison.xsl (bison:ruleNumber): New key.
4440	Improve processing time. Suggested by Joel E. Denny.
4441	* data/xslt/xml2dot.xsl (xsl:template name="escape"):
4442	Write xsl:param "required" attribute as comment.
4443	* data/xslt/xml2text.xsl (xsl:template match="item"): New.
4444	(xsl:template match="rule"): Support new reduced itemset.
4445	(xsl:template match="point"): Remove.
4446	* data/xslt/xml2xhtml.xsl: Likewise.
4447
44482007-10-09  Joel E. Denny  <jdenny@ces.clemson.edu>
4449
4450	* src/getargs.c (version): Update copyright year.
4451
44522007-10-09  Joel E. Denny  <jdenny@ces.clemson.edu>
4453
4454	Make xml2dot.xsl and --graph produce the same output.
4455	* data/xslt/xml2dot.xsl (xsl:template match="rule"): Use a `&#10;'
4456	instead of a `\n'.  That is, don't add escapes yet or they'll be doubly
4457	escaped later.
4458	(xsl:template name="output-node"): Use the new escape template instead
4459	of the string-replace template directly.
4460	(xsl:template name="output-edge"): Likewise.
4461	(xsl:template name="escape"): New, escapes backslashes and newlines in
4462	addition to quotation marks.
4463	* src/graphviz.c (start_graph, output_node, output_edge): Add
4464	whitespace to output for legibility.
4465
4466	Make xml2text.xsl and --report produce the same output, and remove the
4467	XML "conflicts" element since a conflict summary is easily extracted
4468	from the automaton.
4469	* data/xslt/bison.xsl: New.
4470	(xsl:template match="state" mode="bison:count-conflicts): New.
4471	* data/xslt/xml2text.xsl: Import bison.xsl.
4472	(xsl:template match="bison-xml-report"): Instead of styling the
4473	"conflicts" element, style the "automaton" element with mode
4474	"conflicts".  Unlike the former, the latter lists S/R and R/R
4475	conflicts for a state on the same line.
4476	(xsl:template match="conflicts"): Remove.
4477	(xsl:template match="conflict"): Remove.
4478	(xsl:template match="terminal"): Line-wrap the list of rules in which
4479	the terminal is used.
4480	(xsl:template match="nonterminal"): Likewise for nonterminals.
4481	(xsl:template match="automaton" mode="conflicts"): New.
4482	(xsl:template match="state" mode="conflicts"): New.
4483	(xsl:template name="line-wrap"): New.
4484	(xsl:template name="ws-search"): New.
4485	* data/xslt/xml2xhtml.xsl: Import bison.xsl.
4486	(xsl:template match="bison-xml-report"): Instead of styling the
4487	"conflicts" element, style the "automaton" element with mode
4488	"conflicts."
4489	(xsl:template match="conflicts"): Remove.
4490	(xsl:template match="conflict"): Remove.
4491	(xsl:template match="automaton" mode="conflicts"): New.
4492	(xsl:template match="state" mode="conflicts): New.
4493	* src/conflicts.c (conflicts_output_xml): Remove.
4494	* src/conflicts.h (conflicts_output_xml): Remove prototype.
4495	* src/print-xml.c (print_xml): Don't invoke conflicts_output_xml.
4496	* src/print.c (print_grammar): Consistently wrap at the 66th column so
4497	the corresponding XSLT is easier.  Also, never wrap between a word and
4498	the comma that follows it.
4499
45002007-10-08  Joel E. Denny  <jdenny@ces.clemson.edu>
4501
4502	Improve C++ namespace support.  Discussed starting at
4503	<http://lists.gnu.org/archive/html/help-bison/2007-09/msg00016.html>.
4504	* data/c++.m4: (b4_namespace_ref, b4_namespace_open,
4505	b4_namespace_close): New macros that interpret the %define variable
4506	"namespace" so its value can contain "::" to indicate nested
4507	namespaces.
4508	* data/glr.cc (b4_namespace): Don't define, and replace all uses with
4509	the above macros.
4510	* data/lalr1.cc (b4_namespace): Likewise.
4511	* data/location.cc (b4_namespace): Likewise.
4512	* doc/bison.texinfo (Decl Summary): Move `%define push_pull' entry
4513	inside a new table in the general %define entry.  Document `%define
4514	namespace' there as well.  Point the %name-prefix entry to it since it
4515	explains it more completely in the case of C++.
4516	(C++ Bison Interface): Mention `%define namespace' instead of
4517	%name-prefix.
4518	(Table of Symbols): Remove the `%define push_pull' entry.  The %define
4519	entry suffices.
4520	* tests/c++.at (Relative namespace references): New test case.
4521	(Absolute namespace references): New test case.
4522	(Syntactically invalid namespace references): New test case.
4523	* tests/input.at (C++ namespace reference errors): New test case.
4524
45252007-10-08  Joel E. Denny  <jdenny@ces.clemson.edu>
4526
4527	Add syncline support and location accessor to internal %define
4528	interfaces.
4529	* data/bison.m4 (b4_percent_define_get_loc): New.
4530	(b4_percent_define_get_syncline): New.
4531	(b4_percent_define_flag_if): Use b4_percent_define_get_loc.
4532	(b4_percent_define_default): Record defining location as line 1 rather
4533	than 0 for the sake of synchronizing #line's, and define
4534	b4_percent_define_syncline(VARIABLE).
4535	(b4_percent_define_check_values): Use b4_percent_define_get_loc.
4536	* src/muscle_tab.c (muscle_syncline_grow): New.
4537	(muscle_code_grow): Use muscle_syncline_grow.
4538	(muscle_percent_define_insert): Use muscle_percent_define_get_loc, and
4539	define b4_percent_define_syncline(VARIABLE).
4540	(muscle_percent_define_get_loc): New.
4541	(muscle_percent_define_get_syncline): New.
4542	(muscle_percent_define_flag_if): Use muscle_percent_define_get_loc, and
4543	remove some unused variables.
4544	(muscle_percent_define_default): Record defining location as line 1
4545	rather than 0 for the sake of synchronizing #line's, and define
4546	b4_percent_define_syncline(VARIABLE).
4547	(muscle_percent_define_check_values): Use
4548	muscle_percent_define_get_loc.
4549	* src/muscle_tab.h (muscle_percent_define_get_loc): Prototype.
4550	(muscle_percent_define_get_syncline): Prototype.
4551	* tests/skeletons.at (%define Boolean variables: invalid skeleton
4552	defaults): Update output for location change.
4553	(Complaining during macro argument expansion): Extend to test
4554	b4_percent_define_get_loc and b4_percent_define_get_syncline errors.
4555
45562007-10-07  Joel E. Denny  <jdenny@ces.clemson.edu>
4557
4558	Fix some error-reporting macro bugs.
4559	* data/bison.m4 (b4_cat): New.
4560	(b4_error, b4_error_at): Use b4_cat to send error directives directly
4561	to stdout so they don't become arguments to other macros.  Update
4562	comments and add examples.
4563	(b4_warn, b4_warn_at, b4_complain, b4_complain_at): Update comments and
4564	add examples.
4565	(b4_fatal, b4_fatal_at): Likewise, and invoke m4_exit(1) immediately
4566	after printing the error directive so that M4 doesn't report subsequent
4567	problems that are induced by this problem.
4568	* src/scan-skel.l: Recognize @` digraph outside of directive arguments
4569	instead of just in them.  Recognize @\n in both places.  Both expand to
4570	the empty string.  Needed by b4_cat.
4571	* tests/skeletons.at (Complaining during macro argument expansion):
4572	New test case.
4573	(Fatal errors make M4 exit immediately): New test case.
4574
45752007-10-04  Joel E. Denny  <jdenny@ces.clemson.edu>
4576
4577	Implement --print-datadir.
4578	* src/getargs.c (usage): Mention.
4579	(PRINT_DATADIR_OPTION): New anonymous enum member.
4580	(long_options): Add entry for it.
4581	(getargs): Add case for it calling compute_pkgdatadir.
4582	* src/output.c (output_skeleton): Encapsulate data directory
4583	computation from here...
4584	(prepare): ... and from here...
4585	(compute_pkgdatadir): ... into this new function.
4586	* src/output.h (compute_pkgdatadir): Prototype.
4587
45882007-09-29  Joel E. Denny  <jdenny@ces.clemson.edu>
4589
4590	* src/print-xml.c (escape_bufs): New static global variable
4591	replacing...
4592	(xml_escape_n): ... the static local variable buf here.
4593	(print_xml): Free memory for escape_bufs.
4594	* src/reduce.c (reduce_xml): XML-escape terminal symbol tags.
4595
45962007-09-25  Joel E. Denny  <jdenny@ces.clemson.edu>
4597
4598	Replace `%push-parser' and `%push-pull-parser' with
4599	`%define push_pull "push"' and `%define push_pull "both"'.
4600	`%define push_pull "pull"' is the default.
4601	* doc/bison.texinfo (Push Decl, Push Parser Function,
4602	Pull Parser Function, Parser Create Function, Parser Delete Function):
4603	Update declarations.
4604	(Decl Summary, Table of Symbols): Replace %push-parser and
4605	%push-pull-parser entries with a %define push_pull entry.
4606	* data/bison.m4 (b4_percent_define_check_values): New macro.
4607	(b4_pull_if, b4_push_if, b4_use_push_for_pull_if): Move these
4608	definitions...
4609	* data/c.m4 (b4_identification): ... and the YYPUSH and YYPULL cpp
4610	definitions...
4611	* data/push.c: ... to here and compute them from the value of the
4612	%define variable push_pull.
4613	* data/c-skel.m4: Instead of choosing the push.c skeleton for push
4614	parsing requests here...
4615	* data/yacc.c: ... hack this to switch to push.c any time
4616	b4_use_push_pull_flag or the %define variable push_pull is set.  This
4617	will go away when we mv push.c yacc.c.
4618	* data/c++-skel.m4, data/glr.c, data/java-skel.m4: Don't report that
4619	push parsing is not supported since unused %define variables are
4620	reported anyway.
4621	* src/getargs.c, src/getargs.h (pull_parser, push_parser): Remove.
4622	* src/muscle_tab.h (muscle_percent_define_check_values): Update
4623	comments for consistency with b4_percent_define_check_values.
4624	* src/output.c (prepare): Don't insert b4_pull_flag and b4_push_flag
4625	muscles.
4626	* src/parse-gram.y (PERCENT_PUSH_PARSER, PERCENT_PUSH_PULL_PARSER):
4627	Remove.
4628	(prologue_declaration): Remove %push-parser and %push-pull-parser
4629	rules.
4630	* src/scan-gram.l (%push-parser, %push-pull-parser): Remove rules.
4631	* tests/calc.at: Update declarations.
4632	* tests/input.at (%define enum variables): New test case.
4633	* tests/push.at (Push Parsing: Memory Leak for Early Deletion): Update
4634	declaration.
4635	(Push Parsing: Multiple impure instances): Update declaration.
4636	(Push Parsing: Unsupported Skeletons): New test case.
4637	* tests/torture.at (Exploding the Stack Size with Alloca): Update
4638	declaration.
4639	(Exploding the Stack Size with Malloc): Update declaration.
4640
46412007-09-24  Wojciech Polak  <polak@gnu.org>
4642
4643	Add XSLT transformations.
4644
4645	* data/xslt/xml2dot.xsl: Transform XML into DOT.
4646	* data/xslt/xml2text.xsl: Transform XML into plain text.
4647	* data/xslt/xml2xhtml.xsl: Transform XML into XHTML.
4648	* data/Makefile.am (xsltdir): New variable.
4649	(dist_xslt_DATA): Add xslt/*.xsl files.
4650
46512007-09-23  Paul Eggert  <eggert@cs.ucla.edu>
4652
4653	* src/conflicts.c (log_resolution): Fix indenting bugs I introduced.
4654	Problem reported by Wojciech Polak.
4655	* src/print-xml.c (xml_puts): Work even if LEVEL exceeds INT_MAX/2.
4656	(xml_printf): Undo change I made on 21 September; that is,
4657	indent 2 spaces, not 1.
4658
46592007-09-23  Joel E. Denny  <jdenny@ces.clemson.edu>
4660
4661	Pacify ./configure --enable-gcc-warnings.
4662	* src/print-xml.c, src/print-xml.h (xml_puts): Make third argument
4663	`char const *' instead of `char *'.
4664	* src/state.c (state_rule_lookahead_tokens_print_xml): Remove unused
4665	local variable `sep'.
4666
46672007-09-21  Paul Eggert  <eggert@cs.ucla.edu>
4668
4669	* src/gram.c (rule_rhs_print_xml): Now static, since it isn't used
4670	elsewhere.
4671	* src/print-xml.c: Prefer "const" after types; that's more consistent.
4672	(xml_printf): Indent just 1 space for level.
4673	(e_char, xlate_char): Remove.
4674	(xml_escape_string): Rewrite to avoid undefined behavior (used
4675	storage that was freed from the stack).
4676	(xml_escape_n): Don't bother checking for subscript error.
4677
46782007-09-21  Wojciech Polak  <polak@gnu.org>
4679
4680	Add Bison XML Automaton Report.
4681
4682	Add support for an -x option to generate an XML report.
4683	It is not documented yet.
4684	* src/print-xml.c: New file.
4685	* src/print-xml.h: Likewise.
4686	* lib/timevar.def (TV_XML): New var.
4687	* src/Makefile.am (bison_SOURCES): Add print-xml.c, print-xml.h.
4688	* src/conflicts.c: Include print-xml.h.
4689	(solved_conflicts_xml_obstack): New var.
4690	(log_resolution, conflicts_solve, conflicts_free):
4691	Add support for XML report.
4692	(conflicts_output_val): New function.
4693	* src/conflicts.h (conflicts_output_val): New decl.
4694	* src/files.c (spec_xml_file): New var.
4695	(compute_output_file_names, output_file_names_free): Add XML support.
4696	* src/files.h (spec_xml_file): New decl.
4697	* src/getargs.c (xml_flag): New var.
4698	(usage, short_options, long_options, getargs): Add XML support.
4699	* src/getargs.h (xml_flag): New decl.
4700	* src/gram.c: Include print-xml.h.
4701	(rule_lhs_print_xml, rule_rhs_print_xml):
4702	(grammar_rules_partial_print_xml, grammar_rules_print_xml):
4703	New functions.
4704	* src/gram.h: Declare external ones.
4705	* src/main.c: Include print-xml.h.
4706	(main): Add XML support.
4707	* src/reduce.c: Include print-xml.h.
4708	(reduce_xml): New function.
4709	* src/reduce.h: Declare it.
4710	* src/state.c: Include print-xml.h.
4711	(state_new): Add XML support.
4712	(state_rule_lookahead_tokens_print_xml): New function.
4713	* src/state.h: Declare it.
4714	(struct state): New member solved_conflicts_xml.
4715	* src/symtab.c (symbol_class_get_string): New function.
4716	* src/symtab.h: Declare it.
4717
47182007-09-21  Paul Eggert  <eggert@cs.ucla.edu>
4719
4720	* GNUmakefile: Switch to coreutils's version.
4721	* bootstrap: Likewise.
4722	* Makefile.cfg: Adjust to new GNUmakefile.
4723	* README-hacking: Likewise.
4724
4725	Import from gnulib:
4726
4727	2006-08-18  Paul Eggert  <eggert@cs.ucla.edu>
4728		    Bruno Haible  <bruno@clisp.org>
4729
4730	* m4/bison-i18n.m4 (BISON_I18N): Also handle the case where yacc exists
4731	and is a script that invokes bison. Tighten the code. Add comments.
4732
47332007-08-28  Joel E. Denny  <jdenny@ces.clemson.edu>
4734
4735	Spell "boolean" as "Boolean".  Reported by Akim Demaille.
4736	* data/bison.m4 (b4_percent_define_flag_if): Fix complaint.
4737	* doc/bison.texinfo (Decl Summary): Fix.
4738	* src/muscle_tab.c (muscle_percent_define_flag_if): Fix complaint.
4739	* tests/input.at (Boolean %define variables): Update output.
4740	* tests/skeletons.at (%define boolean variables: invalid skeleton
4741	defaults): Rename to...
4742	(%define Boolean variables: invalid skeleton defaults): ... this and
4743	update output.
4744
47452007-08-17  Joel E. Denny  <jdenny@ces.clemson.edu>
4746
4747	In impure push mode, don't allow more than one yypstate to be allocated
4748	since multiple impure parsers would corrupt yynerrs.
4749	* data/push.c (yypstate_allocated): New static global variable
4750	initialized to 0.
4751	(yypull_parse): If yypstate_new returns 0, don't report it as memory
4752	exhaustion if yypstate_allocated is 1, but still return 2.
4753	(yypstate_new): Invoke yyerror and return 0 if yypstate_allocated is
4754	already 1.  Otherwise, set it to 1.
4755	(yypstate_delete): Set it to 0.
4756	* tests/push.at (Push Parsing: Multiple impure instances): New test
4757	case.
4758
47592007-08-17  Bob Rossi  <bob@brasko.net>
4760
4761	* doc/bison.texinfo (Push Decl): Document the push parser.
4762	(Table of Symbols): Ditto.
4763	(Pure Decl): Ditto.
4764	(Decl Summary): Ditto.
4765	(Multiple Parsers, Push Parser Function, Pull Parser Function,
4766	Parser Create Function, Parser Delete Function):
4767	Add new push parser symbols.
4768	(Table of Symbols): Document push-parser, push-pull-parser,
4769	yypush_parse, yypull_parse, yypstate_new and yypstate_delete.
4770
47712007-08-15  Paul Eggert  <eggert@cs.ucla.edu>
4772
4773	Update to GPLv3.
4774	* doc/gpl-3.0.texi: New file.
4775	* doc/gpl.texi: Remove.
4776	* COPYING, GNUmakefile, HACKING, Makefile.am, Makefile.cfg:
4777	* Makefile.maint, NEWS, PACKAGING, README, README-alpha:
4778	* README-hacking, TODO, bootstrap, bootstrap.conf:
4779	* configure.ac, data/Makefile.am, data/README, data/bison.m4:
4780	* data/c++-skel.m4, data/c++.m4, data/c-skel.m4, data/c.m4:
4781	* data/glr.c, data/glr.cc, data/java-skel.m4, data/java.m4:
4782	* data/lalr1.cc, data/lalr1.java, data/location.cc:
4783	* data/push.c, data/yacc.c, data/m4sugar/m4sugar.m4:
4784	* djgpp/Makefile.maint, djgpp/README.in, djgpp/config.bat:
4785	* djgpp/config.sed, djgpp/config.site, djgpp/config_h.sed:
4786	* djgpp/djunpack.bat, djgpp/subpipe.c, djgpp/subpipe.h:
4787	* djgpp/testsuite.sed, doc/Makefile.am, doc/bison.texinfo:
4788	* doc/fdl.texi, doc/refcard.tex, etc/Makefile.am, etc/README:
4789	* etc/bench.pl.in, examples/Makefile.am, examples/extexi:
4790	* examples/calc++/Makefile.am, lib/Makefile.am, lib/abitset.c:
4791	* lib/abitset.h, lib/bbitset.h, lib/bitset.c, lib/bitset.h:
4792	* lib/bitset_stats.c, lib/bitset_stats.h, lib/bitsetv-print.c:
4793	* lib/bitsetv-print.h, lib/bitsetv.c, lib/bitsetv.h:
4794	* lib/ebitset.c, lib/ebitset.h, lib/get-errno.c:
4795	* lib/get-errno.h, lib/lbitset.c, lib/lbitset.h:
4796	* lib/libiberty.h, lib/main.c, lib/subpipe.c, lib/subpipe.h:
4797	* lib/timevar.c, lib/timevar.def, lib/timevar.h:
4798	* lib/vbitset.c, lib/vbitset.h, lib/yyerror.c:
4799	* m4/c-working.m4, m4/cxx.m4, m4/m4.m4, m4/subpipe.m4:
4800	* m4/timevar.m4, src/LR0.c, src/LR0.h, src/Makefile.am:
4801	* src/assoc.c, src/assoc.h, src/closure.c, src/closure.h:
4802	* src/complain.c, src/complain.h, src/conflicts.c:
4803	* src/conflicts.h, src/derives.c, src/derives.h, src/files.c:
4804	* src/files.h, src/flex-scanner.h, src/getargs.c:
4805	* src/getargs.h, src/gram.c, src/gram.h, src/graphviz.c:
4806	* src/lalr.c, src/lalr.h, src/location.c, src/location.h:
4807	* src/main.c, src/muscle_tab.c, src/muscle_tab.h:
4808	* src/nullable.c, src/nullable.h, src/output.c, src/output.h:
4809	* src/parse-gram.c, src/parse-gram.h, src/parse-gram.y:
4810	* src/print.c, src/print.h, src/print_graph.c:
4811	* src/print_graph.h, src/reader.c, src/reader.h, src/reduce.c:
4812	* src/reduce.h, src/relation.c, src/relation.h:
4813	* src/revision.h, src/scan-code.h, src/scan-code.l:
4814	* src/scan-gram.h, src/scan-gram.l, src/scan-skel.h:
4815	* src/scan-skel.l, src/state.c, src/state.h, src/symlist.c:
4816	* src/symlist.h, src/symtab.c, src/symtab.h, src/system.h:
4817	* src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h:
4818	* tests/Makefile.am, tests/actions.at, tests/c++.at:
4819	* tests/calc.at, tests/conflicts.at, tests/cxx-type.at:
4820	* tests/existing.at, tests/glr-regression.at:
4821	* tests/headers.at, tests/input.at, tests/java.at:
4822	* tests/local.at, tests/output.at, tests/push.at:
4823	* tests/reduce.at, tests/regression.at, tests/sets.at:
4824	* tests/skeletons.at, tests/synclines.at, tests/testsuite.at:
4825	* tests/torture.at:
4826	Update to GPLv3.
4827
48282007-08-11  Joel E. Denny  <jdenny@ces.clemson.edu>
4829
4830	Get rid of broken %no-parser, -n, and --no-parser implementation and
4831	documentation.
4832	* TODO: Don't mention them.
4833	* doc/bison.1: Likewise.
4834	* doc/bison.texinfo (Decl Summary): Likewise.
4835	(Bison Options): Likewise.
4836	(Option Cross Key): Likewise.
4837	* src/getargs.c (no_parser_flag): Remove global variable.
4838	(usage): Don't print description of -n and --no-parser.
4839	(long_options): Remove --no-parser entry here.
4840	(getargs): Remove -n case in the switch here.
4841	* src/getargs.h (no_parser_flag): Remove extern.
4842	* tests/regression.at (Web2c Actions): Remove comment that mentions
4843	--no-parser.
4844
48452007-08-11  Joel E. Denny  <jdenny@ces.clemson.edu>
4846
4847	* tests/push.at (Push Parsing: Memory Leak for Early Deletion): Do not
4848	name user variables starting with `yy'.  Just pass NULL instead of a
4849	dummy local &yylval to yypush_parse.
4850	* tests/torture.at (AT_DATA_STACK_TORTURE): Do not name user variables
4851	starting with `yy'.
4852
48532007-08-03  Joel E. Denny  <jdenny@ces.clemson.edu>
4854
4855	* data/yacc.c (yyexhaustedlab): Define it when YYERROR_VERBOSE is
4856	true since it's then always used regardless of whether yyoverflow is
4857	defined.  Reported by Christian Burger at
4858	<http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00031.html>.
4859	* THANKS: Add Christian Burger.
4860
4861	* ChangeLog: For changes in doc/bison.texinfo, consistently reference
4862	node names: say "Decl Summary" not "Bison Declaration Summary".
4863
48642007-07-28  Joel E. Denny  <jdenny@ces.clemson.edu>
4865
4866	* src/muscle_tab.c (muscle_percent_define_flag_if): In order to
4867	determine whether this function has already complained about an invalid
4868	value for a %define boolean variable, don't check whether Bison has
4869	ever examined the value.  As written, the check was a tautology.
4870	Instead, record and check for this complaint using a separate muscle.
4871
48722007-07-27  Joel E. Denny  <jdenny@ces.clemson.edu>
4873
4874	Fix push parsing memory leak reported by Brandon Lucia at
4875	<http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00032.html>.
4876	* THANKS: Add Brandon Lucia.
4877	* data/push.c (yypstate_delete): Free the stack if it was reallocated
4878	but the parse never completed and thus freed it.
4879	* tests/Makefile.am (TESTSUITE_AT): Add push.at.
4880	* tests/testsuite.at: Include push.at.
4881	* test/push.at: New.
4882	(Push Parsing: Memory Leak for Early Deletion): New test case.
4883
48842007-07-17  Joel E. Denny  <jdenny@ces.clemson.edu>
4885
4886	Improve handling of multiple S/R conflicts in the same state and of S/R
4887	conflicts involving multiple reductions.
4888	* src/conflicts.c (resolve_sr_conflict): Don't assign the error action
4889	set for a state here or Bison will abort if it is reassigned on a
4890	later conflicted reduction in the same state.
4891	Similarly, don't finalize and assign the solved conflicts report here
4892	or it will be lost if it is reassigned on a later conflicted reduction
4893	in the same state.
4894	(set_conflicts): Instead, assign them both here after all S/R conflicts
4895	in the state have been fully examined.
4896	* src/print.c (shift_set): Rename to...
4897	(no_reduce_set): ... this.
4898	(print_reductions): Update for rename, and add %nonassoc error action
4899	tokens to no_reduce_set so that, when printing the first remaining
4900	reduction on an error action token, the reduction is enclosed in
4901	brackets.
4902	(print_results): Update for rename.
4903	* tests/conflicts.at (Solved conflicts report for multiple reductions
4904	in a state): New test case.
4905	(%nonassoc error actions for multiple reductions in a state): New test
4906	case.
4907
4908	* src/main.c (main): Don't depend on C99 features.
4909
49102007-07-16  Joel E. Denny  <jdenny@ces.clemson.edu>
4911
4912	* build-aux/.cvsignore: Add compile.
4913	* lib/.cvsignore: Add charset.alias, ref-add.sed, ref-del.sed, and
4914	uniwidth.
4915
49162007-07-10  Joel E. Denny  <jdenny@ces.clemson.edu>
4917
4918	* bootstrap (slurp): Create target directories that don't exist.
4919	Specifically, we need lib/uniwidth/ because of recent Gnulib changes.
4920
49212007-07-09  Joel E. Denny  <jdenny@ces.clemson.edu>
4922
4923	* LR0.c (new_itemsets): Fix wording in comments: say item index rather
4924	than item number.
4925	* closure.c (closure): Likewise.
4926	* state.h (reductions): Comment sorting of rules.
4927	(state): Comment sorting of items.
4928
49292007-07-02  Joel E. Denny  <jdenny@ces.clemson.edu>
4930
4931	Fix C++ test cases after recent Gnulib changes.  Discussed starting at
4932	<http://lists.gnu.org/archive/html/bug-bison/2007-07/msg00000.html>.
4933	* examples/calc++/Makefile.am (DEFAULT_INCLUDES): Override Automake's
4934	definition in order to avoid Gnulib headers since we don't use config.h
4935	here.
4936	* tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): Use AT_DATA_GRAMMAR
4937	rather than AT_DATA so that config.h is included.
4938
49392007-07-01  Joel E. Denny  <jdenny@ces.clemson.edu>
4940
4941	* data/glr.c (yy_yypstack, yypstates, yypdumpstack): Use YYFPRINTF
4942	instead of fprintf.  Guard these functions with #if YYDEBUG instead of
4943	#ifdef YYDEBUG for consistency with all other uses of YYDEBUG in Bison
4944	and so that YYFPRINTF is guaranteed to be defined here.
4945
49462007-05-29  Joel E. Denny  <jdenny@ces.clemson.edu>
4947
4948	* src/muscle_tab.c (muscle_percent_define_invalid_value): Replace
4949	with...
4950	(muscle_percent_define_check_values): ... this more helpful function.
4951	Again, it's not used yet, but it will be.
4952	* src/muscle_tab.h: Likewise.
4953
4954	Improve some comments in parser table construction.
4955	* src/LR0.c (new_itemsets): Explain sorting of itemset and kernel_base.
4956	(generate_states): Don't mention ruleset, which is internal to closure.
4957	* src/closure.c (closure): Explain sorting of core and itemset, which
4958	is required for this function to behave correctly.
4959	* src/closure.h (closure): Mention sorting.
4960
49612007-05-28  Joel E. Denny  <jdenny@ces.clemson.edu>
4962
4963	* src/lalr.c (state_lookahead_tokens_count): For code readability,
4964	move the check for disabled transitions to an aver since conflict
4965	resolution hasn't happened yet.
4966
4967	* src/lalr.c (state_lookahead_tokens_count): Remove the check that
4968	labels a state as inconsistent just because it has error transitions.
4969	The original form of this check appeared in revision 1.1 of lalr.c,
4970	which was committed on 1991-12-21.  Now (at least), changing the
4971	consistency label on such a state appears to have no useful effect in
4972	any of the places it is examined, which I enumerate below.  The key
4973	point to understanding each item in this enumeration is that a state
4974	with an error transition is labelled consistent in the first place only
4975	if it has no rules, so the check cannot matter for states that have
4976	rules.  (1) Labelling a state as inconsistent will cause set_conflicts
4977	to try to identify its conflicts, and a state must have *rules* to have
4978	conflicts.  (2) Labelling a state as inconsistent will affect how
4979	action_row sets the default *rule* for the state.  (3) Labelling a
4980	state as inconsistent will cause build_relations to add lookback edges
4981	to *rules* in that state.
4982	* src/state.h (struct state): Word the comment for member consistent
4983	more carefully.
4984
49852007-05-27  Joel E. Denny  <jdenny@ces.clemson.edu>
4986
4987	Don't depend on C99 features.
4988	* src/conflicts.c (conflicts_update_state_numbers): Fix for-loop.
4989	* src/lalr.c (lalr_update_state_numbers): Fix for-loop.
4990	* src/reader.c (check_and_convert_grammar): Fix for-loop.
4991	* src/state.c (state_mark_reachable_states): Fix for-loop.
4992	(state_remove_unreachable_states): Fix for-loop.
4993
4994	Don't widen struct state with member reachable just to temporarily
4995	record reachability.  Instead, use a local bitset.
4996	* src/state.h (struct state): Remove member.
4997	* src/state.c (state_new): Don't initialize it.
4998	(state_mark_reachable_states): Rename to...
4999	(state_record_reachable_states): ... this, and use bitset.
5000	(state_remove_unreachable_states): Use bitset.
5001
50022007-05-26  Joel E. Denny  <jdenny@ces.clemson.edu>
5003
5004	* src/Makefile.am (yacc): Quote target action commands properly so
5005	that the yacc script isn't corrupt.  Reported by Hans Aberg at
5006	<http://lists.gnu.org/archive/html/bug-bison/2007-05/msg00003.html>.
5007
5008	* data/glr.c (yylval): As in yacc.c, don't extern in the header for
5009	the case of pure parsers.  Reported by Frans Englich at
5010	<http://lists.gnu.org/archive/html/help-bison/2007-05/msg00018.html>.
5011	* THANKS: Add Frans Englich.
5012
5013	* NEWS (2.3a+): In the %code entry, reference section `Bison
5014	Declaration Summary' from the manual now since the %code summary has
5015	moved there.
5016	* doc/bison.texinfo (Prologue Alternatives): Mention that directives
5017	in the rules section must be terminated by semicolons.
5018
50192007-05-20  Joel E. Denny  <jdenny@ces.clemson.edu>
5020
5021	Extend the front-end API for %define variables to more completely
5022	mirror the back-end.  This will be useful in the future.
5023	* data/bison.m4 (b4_percent_define_get, b4_percent_define_ifdef):
5024	Update comments to mention the new front-end counterparts of these
5025	macros.
5026	* src/muscle_tab.c (MUSCLE_COMMON_DECODE): New macro with common code
5027	for muscle_string_decode and muscle_location_decode.
5028	(muscle_string_decode): New static function.
5029	(muscle_location_decode): Use MUSCLE_COMMON_DECODE.
5030	(muscle_percent_define_get, muscle_percent_define_ifdef): New
5031	functions.
5032	(muscle_percent_define_flag_if): Use muscle_percent_define_ifdef and
5033	muscle_percent_define_get to mimic the b4_percent_define_flag_if
5034	implementation more closely.
5035	(muscle_percent_define_invalid_value): New function.
5036	* src/muscle_tab.h (muscle_percent_define_get,
5037	muscle_percent_define_ifdef, muscle_percent_define_invalid_value):
5038	Prototype.
5039
50402007-05-07  Joel E. Denny  <jdenny@ces.clemson.edu>
5041
5042	* NEWS (2.3a+): Mention yesterday's state-removal change.
5043	(2.3a): Remove the %language entry, which was added after 2.3a.
5044	* src/LR0.c, src/closure.c, src/closure.h, src/conflicts.c,
5045	src/conflicts.h, src/lalr.c, src/lalr.h, src/print.c,
5046	src/print_graph.c, src/state.c, src/state.h, tests/conflicts.at,
5047	tests/existing.at: Update copyright date.
5048
50492007-05-06  Joel E. Denny  <jdenny@ces.clemson.edu>
5050
5051	If conflict resolution makes states unreachable, remove those states,
5052	report rules that are then unused, and don't report conflicts in those
5053	states.
5054	* src/conflicts.c, src/conflicts.h (conflicts_update_state_numbers):
5055	New global function.
5056	* src/lalr.c, src/lalr.h (lalr_update_state_numbers): New global
5057	function.
5058	* src/main.c (main): After conflict resolution, remove the unreachable
5059	states and update all data structures that reference states by number.
5060	* src/state.c (state_new): Initialize each state's reachable member to
5061	false.
5062	(state_mark_reachable_states): New static function.
5063	(state_remove_unreachable_states): New global function.
5064	* src/state.h (struct state): Add member bool reachable.
5065	(state_remove_unreachable_states): Prototype.
5066	* tests/conflicts.at (Unreachable States After Conflict Resolution):
5067	New test case.
5068	* tests/existing.at (GNU pic Grammar): Update test case output now that
5069	an unused rule is discovered.
5070
50712007-05-06  Joel E. Denny  <jdenny@ces.clemson.edu>
5072
5073	Minor code cleanup in parser table construction.
5074	* src/LR0.c (new_itemsets): Use item_number_is_symbol_number.
5075	(new_itemsets, save_reductions): Update for rename to nitemset.
5076	* src/closure.c (nritemset): Rename to...
5077	(nitemset): ... this since the "r" appears to meaningless and isn't
5078	used in the comments.
5079	(closure): Update for rename.
5080	* src/closure.h (nritemset): Update extern to...
5081	(nitemset): ... this.
5082	* src/lalr.c (LA): Fix a typo in comments.
5083	* src/print.c (print_core): Update for rename to nitemset.
5084	* src/print_graph.c (print_graph): Likewise.
5085	* src/state.h: Fix some typos in header comments.
5086
50872007-04-04  Paul Eggert  <eggert@cs.ucla.edu>
5088
5089	* THANKS: Use ASCII for Sebastien Fricker's name.  Bison source
5090	still sticks to ASCII.  Sorry!
5091
5092	* README-hacking: New file, taken mostly from coreutils, with changes
5093	for Bison.  Contains much of the contents of:
5094	* README-cvs: Remove.
5095	* bootstrap: Sync from gnulib.
5096	* build-aux/.cvsignore: Remove *.t, mkinstalldirs.
5097	* lib/.cvsignore: Add wchar.h, wctype.h.  Remove exit.h.
5098
50992007-03-10  Joel E. Denny  <jdenny@ces.clemson.edu>
5100
5101	* doc/bison.texinfo (Destructor Decl): Fix typo reported by Sebastian
5102	Setzer.
5103	(Java Differences): Fix some typos.
5104	* THANKS: Add Sebastian Setzer.
5105
51062007-03-07  Paolo Bonzini  <bonzini@gnu.org>
5107
5108	* data/java.m4 (b4_single_class_if): Remove.
5109	(b4_abstract_if): Look at "%define abstract".
5110	(b4_lexer_if): New.
5111	(b4_union_name): Rename...
5112	(b4_yystype): ... to this.  Map to "%define stype".
5113	(b4_rhs_value, b4_parse_param_decl, b4_lex_param_decl,
5114	b4_maybe_throws): Fix quoting.
5115	(b4_lex_param_call): Move below to keep b4_*_param_decl close.
5116	* data/lalr1.java (Lexer interface): Always define.
5117	(Lexer interface within parser class): Remove.
5118	(YYLexer class): New, used when "%code lexer" is present.
5119	(constructor): When "%code lexer" is used, pass %lex-param
5120	to the lexer constructor.
5121	(yylex, yyparse): Remove %lex-param from method invocations
5122	(YYStack, yyaction, yyparse): Rename b4_union_name to b4_yystype.
5123
5124	* doc/bison.texinfo (Java Bison Interface): Mention "%define
5125	abstract".  Rename "%define union_name" to "%define stype".
5126	Rename method names according to previous patch.
5127	(Java Scanner Interface): Describe "%code lexer" instead of
5128	"%pure-parser" and "%define single_class".
5129	(Java Differences): Mention "%code lexer".
5130
5131	* tests/java.at (_AT_DATA_JAVA_CALC_Y): Remove final argument.
5132	Include scanner here, using macros from tests/local.at.
5133	(AT_DATA_CALC_Y): Remove final argument.
5134	(_AT_CHECK_JAVA_CALC): Likewise.
5135	(AT_CHECK_JAVA_CALC): Likewise.  Test all four combinations
5136	of %locations and %error-verbose.
5137	(main): Test with and without %lex-param.
5138	* tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Push AT_LEXPARAM_IF.
5139	(AT_BISON_OPTION_POPDEFS): Pop it.
5140
51412007-03-07  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
5142
5143	DJGPP spefic issue.  Inhibit the use of disallowed characters for
5144	file name genertion on Win98, WinXP, etc.  These are |<>":?*\
5145	and concern testsuite case 46.
5146	* Makefile.am: djgpp/testsuite.sed added to EXTRA_DIST
5147	* djgpp/testsuite.sed: Inhibit the use of disallowed characters.
5148	* djgpp/config.bat: Inhibit the use of disallowed characters.
5149
51502007-03-02  Joel E. Denny  <jdenny@ces.clemson.edu>
5151
5152	Miscellaneous %define and %code cleanup.
5153	* data/bison.m4 (b4_percent_define_flag_if): Correct comments on how
5154	values are interpreted.
5155	* doc/bison.texinfo (Decl Summary): Clean up and extend %define
5156	documentation a little more.
5157	* src/muscle_tab.c (MUSCLE_USER_NAME_CONVERT,
5158	muscle_percent_define_insert, muscle_percent_code_grow): New
5159	functions/macros.
5160	* src/muscle_tab.h (muscle_percent_define_insert,
5161	muscle_percent_code_grow): Prototype.
5162	* src/parse-gram.y (prologue_declaration): Use
5163	muscle_percent_define_insert and muscle_percent_code_grow when parsing
5164	%define and %code directives.
5165
5166	Make it easy to share %define boolean variables between the front-end
5167	and back-end.  Though not used yet, this will be useful in the future.
5168	* data/bison.m4 (b4_check_user_names): Rewrite comments to talk about
5169	Bison uses of names rather than just skeleton uses of names.
5170	(b4_percent_define_get, b4_percent_define_ifdef): Rename
5171	b4_percent_define_skeleton_variables(VARIABLE) to
5172	b4_percent_define_bison_variables(VARIABLE).
5173	(b4_percent_code_get, b4_percent_code_ifdef): Rename
5174	b4_percent_code_skeleton_qualifiers(QUALIFIER) to
5175	b4_percent_code_bison_qualifiers(QUALIFIER).
5176	(b4_check_user_names_wrap): Update for renames.
5177	* src/muscle_tab.c, src/muscle_tab.h (muscle_percent_define_flag_if,
5178	muscle_percent_define_default): New functions mimicking
5179	b4_percent_define_flag_if and b4_percent_define_default.
5180
5181	For %define variables, report locations for invalid values and
5182	redefinitions.
5183	* data/bison.m4 (b4_percent_define_flag_if): Read
5184	b4_percent_define_loc(VARIABLE) to report the location of an invalid
5185	value for VARIABLE.
5186	(b4_percent_define_default): Save a special location in
5187	b4_percent_define_loc(VARIABLE) in case the default value for VARIABLE
5188	must later be reported as invalid.
5189	* src/muscle_tab.c (muscle_location_grow, muscle_location_decode): New
5190	functions.
5191	(muscle_percent_define_insert): Record the location of VARIABLE in
5192	muscle percent_define_loc(VARIABLE), and use it to report the previous
5193	location for a redefinition.
5194	(muscle_percent_define_flag_if): Update like b4_percent_define_flag_if.
5195	(muscle_percent_define_default): Update like b4_percent_define_default.
5196	(muscle_grow_user_name_list): Rename to...
5197	(muscle_user_name_list_grow): ... this for consistency and use
5198	muscle_location_grow.
5199	* src/muscle_tab.h (muscle_location_grow): Prototype.
5200	* tests/input.at (%define errors): Update expected output.
5201	* tests/skeletons.at (%define boolean variables: invalid skeleton
5202	defaults): New test case.
5203
52042007-02-28  Joel E. Denny  <jdenny@ces.clemson.edu>
5205
5206	* src/print.c (lookahead_set, state_default_rule): Remove.
5207	(print_reductions): Replace state_default_rule invocation with
5208	equivalent use of yydefact, which was computed in token_actions in
5209	tables.c.
5210	(print_results): Don't allocate lookahead_set.
5211
52122007-02-27  Paolo Bonzini  <bonzini@gnu.org>
5213
5214	* data/lalr1.java: Prefix all private members with yy.
5215
52162007-02-24  Joel E. Denny  <jdenny@ces.clemson.edu>
5217
5218	Use YYFPRINTF instead of fprintf where appropriate.  Reported by
5219	Sebastien Fricker at
5220	<http://lists.gnu.org/archive/html/bug-bison/2007-02/msg00035.html>.
5221	* THANKS: Add Sebastien Fricker.
5222	* data/glr.c, data/push.c, data/yacc.c (yy_reduce_print): Implement.
5223	* doc/bison.texinfo (Tracing): Make it clearer that YYFPRINTF must
5224	accept a variable number of arguments.
5225
52262007-02-19  Joel E. Denny  <jdenny@ces.clemson.edu>
5227
5228	* bootstrap: Remove occurrences of .#bootmp from lib/Makefile.
5229
52302007-02-13  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
5231
5232	* djgpp/config.bat: Adjustments concerning the use of autoconf 2.61.
5233	* djgpp/config.sed: Adjustments concerning the use of autoconf 2.61.
5234	* djgpp/config.site: Adjustments concerning the use of autoconf 2.61.
5235
52362007-02-11  Paul Eggert  <eggert@cs.ucla.edu>
5237
5238	Undo my 2007-02-07 change, switching back to the c-strcase module
5239	introduced in the 2007-02-03 change.  Bruno Haible reported that
5240	the 2007-02-07 change would be dangerous in Turkish if we add a
5241	language whose name contains "i", since "i" is not lowercase "I"
5242	in Turkish.
5243	* bootstrap.conf (gnulib_modules): Add c-strcase.  Remove strcase.
5244	* lib/.cvsignore: Add c-ctype.c, c-ctype.h, c-strcase.h,
5245	c-strcasecomp.c, c-strncasecmp.c.  Remove strcasecmp.c, strncasecmp.c.
5246	* m4/.cvsignore: Remove strcase.m4.
5247	* src/getargs.c: Revert 2007-02-07 change, as follows.
5248	Include c-strcase.h.
5249	(language_argmatch): Use c_strcasecmp rather than strcasecmp.
5250
52512007-02-11  Bruno Haible  <bruno@clisp.org>
5252
5253	Enable the Java related testsuite tests when the only Java compiler
5254	found is a gcj < 4.3.  Discussed at
5255	<http://lists.gnu.org/archive/html/bug-bison/2007-02/msg00016.html>.
5256	* configure.ac (gt_JAVACOMP): Don't specify a target_version.
5257
52582007-02-11  Joel E. Denny  <jdenny@ces.clemson.edu>
5259
5260	* data/Makefile.am: Update copyright date.
5261	* data/push.c (yypull_parse): Report memory exhaustion and return 2 if
5262	yypstate_new returns NULL.
5263	(yypstate_new): Return NULL if malloc does.
5264	* src/reader.c (packgram): Move translation of rule actions from the
5265	beginning of packgram to...
5266	(check_and_convert_grammar): ... here right before packgram is invoked
5267	so it's easier to write more complete comments, and remove redundant
5268	code.
5269
52702007-02-10  Joel E. Denny  <jdenny@ces.clemson.edu>
5271
5272	As in semantic actions, make @$ in %initial-action, %destructor, and
5273	%printer imply %locations.
5274	* src/scan-code.l (SC_SYMBOL_ACTION): Set locations_flag = true when
5275	scanning @$.
5276	* tests/actions.at (AT_CHECK_ACTION_LOCATIONS): New macro supporting...
5277	(@$ in %initial-action implies %locations,
5278	@$ in %destructor implies %locations,
5279	@$ in %printer implies %locations): ... these new test cases.
5280
52812007-02-07  Paul Eggert  <eggert@cs.ucla.edu>
5282
5283	Undo most of the 2007-02-03 change, switching to the strcase module
5284	now that gnulib strcase has been fixed.
5285	* bootstrap.conf (gnulib_modules): Remove c-strcase.  Add strcase.
5286	* lib/.cvsignore: Remove c-ctype.c, c-ctype.h, c-strcase.h,
5287	c-strcasecomp.c, c-strncasecmp.c.  Add strcasecmp.c, strncasecmp.c
5288	* m4/.cvsignore: Add strcase.m4.
5289	* src/getargs.c: Revert 2007-02-03 change, as follows.
5290	Don't include c-strcase.h.
5291	(language_argmatch): Use strcasecmp rather than c_strcasecmp.
5292	strcasecmp has "unspecified behavior" outside the POSIX locale,
5293	but it works fine in practice if at least one argument is ASCII,
5294	as is the case in Bison.
5295
52962007-02-07  Paolo Bonzini  <bonzini@gnu.org>
5297
5298	* tests/java.at: Skip tests if only one of javac/java is present.
5299	Reported by Joel E. Denny.
5300	* tests/atlocal.in: Adjust copyright years.
5301
53022007-02-05  Paolo Bonzini  <bonzini@gnu.org>
5303
5304	* data/lalr1.java (Stack): Work around old verifiers that disallow
5305	access to the private fields of an inner class, from the outer class.
5306	We can make Stack's fields public because user code doesn't have access
5307	to the instance of Stack used by parse().  Reported by Paul Eggert.
5308
53092007-02-03  Paul Eggert  <eggert@cs.ucla.edu>
5310
5311	* .cvsignore: Add javacomp.sh, javaexec.sh.  Is this really
5312	the right spot for these files?
5313	* bootstrap.conf (gnulib_modules): Add c-strcase.
5314	* lib/.cvsignore: Add c-ctype.c c-ctype.h, c-strcasecomp.c,
5315	c-strncasecmp.c.
5316	* src/getargs.c: Include c-strcase.h.
5317	(language_argmatch): Use c_strcasecmp rather than strcasecmp,
5318	to avoid unspecified behavior.
5319
53202007-02-01  Joel E. Denny  <jdenny@ces.clemson.edu>
5321
5322	* doc/bison.texinfo (Decl Summary): Correct typo.
5323
53242007-01-30  Paolo Bonzini  <bonzini@gnu.org>
5325
5326	* data/bison.m4 (b4_percent_define_flag_if): Don't treat 0 as false.
5327	Complain if the value does not match empty, "true" or "false".
5328	* data/c++.m4: Adjust default definitions of %define variables.
5329	* data/java.m4: Adjust default definitions of %define variables.
5330	* doc/bison.texinfo (Decl Summary): Adjust the %define entry according
5331	to above behavior.
5332	* tests/input.at (Boolean %define variables): Test new behavior.
5333
53342007-01-29  Paolo Bonzini  <bonzini@gnu.org>
5335
5336	* NEWS: Mention java.
5337	* TODO: Remove things that are done.
5338	* bootstrap.conf: Add javacomp-script and javaexec-script.
5339	* configure.ac: Invoke gt_JAVACOMP and gt_JAVAEXEC.
5340
5341	* data/Makefile.am: Add new files.
5342	* data/java-skel.m4: New.
5343	* data/java.m4: New.
5344	* data/lalr1.java: New.
5345
5346	* doc/bison.texinfo: Put "A Complete C++ Example" under
5347	C++ Parsers.  Add Java Parsers.  Put C++ Parsers and Java Parsers
5348	under Other Languages.
5349
5350	* src/getargs.c (valid_languages): Add Java.
5351	* src/getargs.h (struct bison_language): Update size of string fields.
5352
5353	* tests/Makefile.am: Add java.at.
5354	* tests/atlocal.in: Add CONF_JAVA and CONF_JAVAC.
5355	* tests/java.at: New.
5356	* tests/testsuite.at: Include it.
5357
53582007-01-28  Joel E. Denny  <jdenny@ces.clemson.edu>
5359
5360	Clean up.
5361	* src/scan-skel.l (at_directive_perform): Add at_directive_argc and
5362	at_directive_argv arguments so these no longer have to be global
5363	variables.  Also, update the implementation for the following changes.
5364	(fail_for_at_directive_too_many_args,
5365	fail_for_at_directive_too_few_args): Add at_directive_name argument.
5366	(at_directive_name): Remove as at_directive_argv[0] will be used for
5367	this now.
5368	(AT_DIRECTIVE_ARGC_MAX): Increment to make space in at_directive_argv
5369	for the directive name.
5370	(at_directive_argc, at_directive_argv): Make these local within
5371	skel_lex instead of global.
5372	(INITIAL): Update directive start action for above changes.
5373	(SC_AT_DIRECTIVE_ARG): Rename to...
5374	(SC_AT_DIRECTIVE_ARGS): ... this, and update for above changes.
5375	(SC_AT_DIRECTIVE_SKIP_WS): Update.
5376	(scan_skel): Move yylex_destroy to...
5377	(skel_scanner_free): ... here.
5378	* tests/skeletons.at (installed skeleton file name): Rename to...
5379	(installed skeleton file names): ... this.
5380
53812007-01-27  Joel E. Denny  <jdenny@ces.clemson.edu>
5382
5383	* ChangeLog: For changes in doc/bison.texinfo, consistently reference
5384	node names: say "Table of Symbols" not "Bison Symbols", and say "Decl
5385	Summary" not "Directives".
5386	* doc/bison.texinfo (Decl Summary, Calc++ Parser): Cross-reference the
5387	%code entry in "Decl Summary" rather than the one in "Table of Symbols"
5388	since the former is now the more complete one.
5389	(Prologue Alternatives): Likewise and do the same for %defines.
5390	(Table of Symbols): Add summary of %code, add summary of %define, and
5391	move full %code documentation to...
5392	(Decl Summary): ... here for consistency with other entries in these
5393	sections.
5394	Move %define entry in order to keep this list alphabetized.
5395	Reword %define entry a little to put less emphasis on the skeleton
5396	concept, which most users shouldn't have to think about.
5397
53982007-01-26  Paul Eggert  <eggert@cs.ucla.edu>
5399
5400	Adjust to recent gnulib changes.
5401	* lib/.cvsignore: Remove stpcpy.h, strndup.h, strnlen.h.
5402	Add string.h, string_.h, unistd_.h, wchar_.h.
5403	* m4/.cvsignore: Add gnulib-common.m4, string_h.m4, wchar.m4.
5404	* src/system.h: Don't include <stpcpy.h>; this is now done by
5405	<string.h>.
5406
54072007-01-23  Paolo Bonzini  <bonzini@gnu.org>
5408
5409	Simplify implementation of unqualified %code, implement macros for
5410	uniform treatment of boolean %define flags.  Document %define.
5411	* data/bison.m4 (b4_percent_define_ifdef, b4_percent_define_flag_if,
5412	b4_percent_code_ifdef): New.
5413	(b4_percent_code_get): Map unqualified %code to b4_percent_code().
5414	* data/c++.m4: Define default value for global_tokens_and_yystype.
5415	* data/glr.cc: Likewise.
5416	* data/location.cc: Use b4_percent_define_flag_if.
5417
5418	* doc/bison.texinfo (Decl Summary): Document %define.
5419
5420	* src/parse-gram.y (Unqualified %code): Change muscle name to
5421	b4_percent_code().
5422	(content.opt): Default to empty.
5423
54242007-01-17  Joel E. Denny  <jdenny@ces.clemson.edu>
5425
5426	Implement support for relative and absolute skeleton file names.
5427	Discussed starting at
5428	<http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00071.html>.
5429	* doc/bison.texinfo (Decl Summary): Document in %skeleton entry.
5430	(Bison Options): Document in --skeleton entry.
5431	* src/output.c (output_skeleton): Use strncpy rather than strcpy since
5432	full_skeleton can't necessarily hold all of pkgdatadir.
5433	If the specified skeleton file name contains a `/', don't prepend
5434	pkgdatadir.
5435	* src/parse-gram.y (prologue_declaration): If the specified skeleton
5436	file name contains a `/', prepend the grammar file directory.
5437	* tests/Makefile.am (TESTSUITE_AT): Add skeletons.at.
5438	* skeletons.at: New file.
5439	(relative skeleton file names): New test case.
5440	(installed skeleton file names): New test case.
5441	* tests/testsuite.at: Include skeletons.at.
5442
5443	* bootstrap: Update copyright to 2007.
5444
54452007-01-17  Paolo Bonzini  <bonzini@gnu.org>
5446
5447	* bootstrap: Remove occurrences of .#bootmp from the files.
5448
54492007-01-17  Akim Demaille  <akim@epita.fr>
5450
5451	* doc/bison.texinfo (Calc++ Parser): Don't try to alias
5452	nonterminals.
5453	Use per-type %printer.
5454
54552007-01-17  Joel E. Denny  <jdenny@ces.clemson.edu>
5456
5457	* NEWS, data/c++-skel.m4, data/c++.m4, data/c-skel.m4, data/c.m4,
5458	data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
5459	djgpp/config.site, src/files.c, src/files.h, src/main.c,
5460	src/muscle_tab.c, src/muscle_tab.h, src/parse-gram.y, src/reader.h,
5461	src/scan-skel.h, src/scan-skel.l, tests/actions.at, tests/calc.at,
5462	tests/glr-regression.at, tests/input.at, tests/local.at,
5463	tests/output.at, tests/torture.at: Update copyright to 2007.
5464
54652007-01-16  Akim Demaille  <akim@epita.fr>
5466
5467	* doc/bison.texinfo (Calc++ Parsing Driver): Let "parse" return an
5468	error code.
5469	(Calc++ Scanner): Exit with failure if we can't open the input
5470	file.
5471	Accept "-" standing for stdin.
5472	(Calc++ Top Level): Print the result only if the parsing was
5473	successful.
5474
54752007-01-16  Akim Demaille  <akim@epita.fr>
5476
5477	* data/lalr1.cc (yy_reduce_print_): Add a missing end-of-line.
5478
54792007-01-15  Paolo Bonzini  <bonzini@gnu.org>
5480	and Joel E. Denny  <jdenny@ces.clemson.edu>
5481
5482	Clean up %define and %code implementation in M4 some.  Most
5483	importantly, rename all related macros to be in the b4_percent_define
5484	and b4_percent_code namespaces.  Also, complete support for `.' in
5485	%define variable names and %code qualifiers.
5486	* data/bison.m4 (b4_check_user_names): Check for special
5487	"SKELETON-NAMESPACE(name)" macros instead of using two nested
5488	m4_foreach loops.
5489	(b4_get_percent_define, b4_get_percent_code): Rename to...
5490	(b4_percent_define_get, b4_percent_code_get): ... these.
5491	Extend documentation with examples.
5492	For SKELETON-NAMESPACE (as documented for b4_check_user_names), use
5493	b4_percent_define_skeleton_variables and
5494	b4_percent_code_skeleton_qualifiers.
5495	Expect any value for the %define variable `foo' to be stored in the
5496	macro named `b4_percent_define(foo)'; expect any %code blocks for the
5497	qualifier `foo' to be stored in a macro named `b4_percent_code(foo)';
5498	expect any unqualified %code blocks to be stored in a macro named
5499	`b4_percent_code_unqualified'.
5500	Use m4_indir so that %define variable names and %code qualifiers can
5501	contain `.', which is allowed by the grammar parser.
5502	(b4_percent_define_default): New macro to set a default value for a
5503	%define variable.
5504	(m4_wrap): Update wrapped code, and fix some underquoting.
5505	(b4_check_user_names_wrap): Update and define outside the m4_wrap.
5506	Expect grammar uses of %define variables and %code qualifiers to be
5507	defined in b4_percent_define_user_variables and
5508	b4_percent_code_user_qualifiers.
5509	* data/c++.m4: Use b4_percent_define_default rather than
5510	m4_define_default.  Fix some underquoting.  Skeleton usage of %define
5511	variable define_location_comparison now implies skeleton usage of
5512	%define variable filename_type.
5513	* data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
5514	data/push.c, data/yacc.c: Update macro names.
5515	* src/parse-gram.y (prologue_declaration, grammar_declaration): Update
5516	muscle names.
5517
55182007-01-14  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
5519
5520	DJGPP specific issues.
5521
5522	* djgpp/config.site: Set ac_cv_path_mkdir to a sane DJGPP specific
5523	default.  Set gl_cv_absolute_wctype_h to a sane DJGPP specific default.
5524
55252007-01-09  Joel E. Denny  <jdenny@ces.clemson.edu>
5526
5527	* tests/glr-regression.at: Use AT_PARSER_CHECK rather than AT_CHECK to
5528	run parsers in all tests so that Valgrind is invoked during
5529	maintainer-check-valgrind.
5530	(Duplicate representation of merged trees): Free all semantic values.
5531	(Duplicated user destructor for lookahead): Likewise.
5532
55332007-01-09  Joel E. Denny  <jdenny@ces.clemson.edu>
5534
5535	* tests/local.at (AT_PARSER_CHECK): Add a PRE argument to specify a
5536	command-line prefix.
5537	* tests/torture.at (Exploding the Stack Size with Alloca): Stderr is
5538	ignored, so use that PRE to set --log-fd=1 in VALGRIND_OPTS so we don't
5539	miss Valgrind messages.
5540	(Exploding the Stack Size with Malloc): Likewise.
5541
55422007-01-09  Joel E. Denny  <jdenny@ces.clemson.edu>
5543
5544	Ignore YYSTACK_USE_ALLOCA for push parsers since the stacks can't be
5545	locals.  Reported by Juan Manuel Guerrero at
5546	<http://lists.gnu.org/archive/html/bug-bison/2007-01/msg00000.html>.
5547	* data/push.c: Enclose the #ifdef YYSTACK_USE_ALLOCA in b4_push_if.
5548	Fix some indentation also.
5549	* tests/torture.at (Exploding the Stack Size with Alloca): Add comment
5550	explaining this issue.
5551
55522007-01-09  Paolo Bonzini  <bonzini@gnu.org>
5553	and Joel E. Denny  <jdenny@ces.clemson.edu>
5554
5555	Simplify union and prologue handling, and escape union and lex/parse
5556	params with digraphs.
5557	* data/bison.m4 (b4_pre_prologue, b4_post_prologue): Set their default
5558	values to the empty string since these are no longer guaranteed
5559	initialized by the front-end.
5560	* data/glr.c, data/glr.cc, data/lalr1.cc, data/push.c, data/yacc.c: Add
5561	braces around b4_user_stype since this is no longer done by the
5562	front-end.
5563	* src/files.c, src/files.h (pre_prologue_obstack,
5564	post_prologue_obstack): Remove.
5565	* src/muscle_tab.c (muscle_pair_list_grow): Don't duplicate header
5566	comments here.  Use MUSCLE_OBSTACK_SGROW so that values are escaped
5567	with digraphs.  This fixes lex params and parse params.
5568	* src/muscle_tab.h (muscle_pair_list_grow): Update comments.
5569	* src/output.c (prepare): Remove muscle insertion of the prologues.
5570	(output): Remove freeing of pre_prologue_obstack and
5571	post_prologue_obstack.
5572	* src/parse-gram.y (prologue_declaration): Use muscle_code_grow rather
5573	than prologue_augment for prologue parsing so you don't need prologue
5574	obstacks.
5575	(grammar_declaration): For %union RHS, use `braceless' instead of
5576	"{...}" so that braces are already stripped and code is escaped with
5577	digraphs.
5578	* src/reader.c (prologue_augment): Remove.
5579	(reader): Remove initialization of pre_prologue_obstack and
5580	post_prologue_obstack.
5581	* src/reader.h (prologue_augment): Remove.
5582
5583	* data/c.m4: Remove stray parenthesis.
5584
55852007-01-08  Joel E. Denny  <jdenny@ces.clemson.edu>
5586
5587	Remove quotes from variables names in %define directives and from
5588	qualifiers in %code directives, and restrict the characters that are
5589	allowed in them to M4-friendly ones.  For %define, continue to support
5590	the quoted form as a deprecated feature.  Discussed starting at
5591	<http://lists.gnu.org/archive/html/bison-patches/2007-01/msg00023.html>.
5592	* NEWS (2.3a+): Add entry for the change to %define.  Update entry for
5593	%code.
5594	* doc/bison.texinfo (Prologue Alternatives): Update.
5595	(Decl Summary): In %defines entry, update mention of `%code requires'
5596	and `%code provides'.
5597	(C++ Location Values): Update %define uses.
5598	(Calc++ Parser Interface): Likewise.
5599	(Calc++ Parser): Likewise, and update `%code requires' uses.
5600	(Table of Symbols): Update %code documentation.
5601	* src/parse-gram.y (prologue_declaration): For %define variables, use
5602	`variable' instead of `STRING'.
5603	(grammar_declaration): For %code qualifiers, use `ID' instead of
5604	`STRING'.
5605	(variable): New nonterminal that takes an `ID' or a `STRING'.
5606	* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Update %code
5607	and %define uses.
5608	* tests/calc.at (_AT_DATA_CALC_Y): Update %define use.
5609	* tests/input.at (Reject unused %code qualifiers): Update %code uses.
5610	(%define errors): Update %define uses.
5611
56122007-01-08  Joel E. Denny  <jdenny@ces.clemson.edu>
5613
5614	* src/parse-gram.y (prologue_declaration): Use MUSCLE_INSERT_STRING
5615	instead of muscle_insert for %define values so that M4-special
5616	characters are replaced with digraphs.
5617	* tests/input.at (%define errors): Extend to check weird values.
5618
56192007-01-08  Joel E. Denny  <jdenny@ces.clemson.edu>
5620
5621	Instead of having skeletons declare all valid %define variables and
5622	%code qualifiers, provide macros that retrieve the associated values
5623	and build these lists automatically.  Thus Bison will now warn when a
5624	variable or qualifier is not used by the skeleton in the current
5625	invocation regardless of whether it might sometimes be used by that
5626	skeleton in other invocations.  Also, move all %define value macros to
5627	the b4_percent_define_ namespace, and remove the %define "NAME" {CODE}
5628	form, which is replaced by %code.
5629	* data/bison.m4 (b4_check_for_unrecognized_names): Rename to...
5630	(b4_check_user_names): ... this, and change the series of valid name
5631	arguments to a single list argument for names used in the skeleton
5632	similar to the existing list argument for names used in the grammar.
5633	Warn instead of complaining.
5634	(b4_get_percent_define, b4_get_percent_code): New to retrieve %define
5635	values and %code code, to format %code code properly, and to build
5636	lists of all %define variables and %code qualifiers used in the
5637	skeleton: b4_skeleton_percent_define_variables and
5638	b4_skeleton_percent_code_qualifiers.
5639	(b4_check_percent_define_variables, b4_check_percent_code_qualifiers):
5640	Remove, and...
5641	(m4_wrap): ... m4_wrap b4_check_user_names invocations instead so that
5642	the skeleton names lists can finish building first.  In place of
5643	b4_used_percent_define_variables and b4_used_percent_code_qualifiers,
5644	expect the lists b4_user_percent_define_variables and
5645	b4_user_percent_code_qualifiers.
5646	* data/c++.m4: Where setting default values for b4_parser_class_name,
5647	b4_location_type, b4_filename_type, b4_namespace, and
5648	b4_define_location_comparison, update their names to the
5649	b4_percent_define_ namespace.
5650	* data/glr.c: Don't use b4_check_percent_define_variables and
5651	b4_check_percent_code_qualifiers.  Use b4_get_percent_code.
5652	* data/glr.cc, data/lalr1.cc: Likewise, and use b4_get_percent_define.
5653	(b4_parser_class_name, b4_namespace): Define these using
5654	b4_get_percent_define for parser_class_name and namespace.
5655	* data/location.cc: Use b4_get_percent_define.
5656	* data/push.c: Don't use b4_check_percent_define_variables and
5657	b4_check_percent_code_qualifiers.  Use b4_get_percent_code.
5658	* data/yacc.c: Likewise, and don't call m4_exit in
5659	b4_use_push_for_pull_if or m4_wrap code will never execute.
5660	* src/muscle_tab.c, src/muscle_tab.h (muscle_grow_used_name_list):
5661	Rename to...
5662	(muscle_grow_user_name_list): ... this for consistency with the
5663	terminology used in bison.m4.
5664	* src/parse-gram.y (prologue_declaration): Prepend "percent_define_" to
5665	%define variable names, and rename muscle used_percent_define_variables
5666	to user_percent_define_variables.
5667	(grammar_declaration): Rename muscle used_percent_code_qualifiers to
5668	user_percent_code_qualifiers.
5669	(content): Remove.
5670	(content.opt): Replace content RHS with STRING RHS so %define "NAME"
5671	{CODE} form is no longer accepted.
5672	* tests/input.at (Reject bad %code qualifiers): Rename to...
5673	(Reject unused %code qualifiers): ... this, and update test output.
5674	(%define error): Update test output.
5675
56762007-01-07  Joel E. Denny  <jdenny@ces.clemson.edu>
5677
5678	Check for unrecognized %define variables similar to checking for
5679	unrecognized %code qualifiers.  Check for redefined %define variables.
5680	* data/bison.m4 (b4_check_for_unrecognized_names): New macro that
5681	generalizes...
5682	(b4_check_percent_code_qualifiers): ... this, which now wraps it.
5683	(b4_check_percent_define_variables): New, also wraps it.
5684	* data/glr.c: Unless glr.cc is wrapping glr.c, declare no valid %define
5685	variables using b4_check_percent_define_variables.
5686	* data/glr.cc, data/lalr1.cc: Declare the valid %define variables as
5687	all those exercised in the test suite and all those listed in the
5688	`Default values' section of c++.m4.  Are there others?
5689	* data/push.c, data/yacc.c: Declare no valid %define variables.
5690	* src/muscle_tab.c, src/muscle_tab.h (muscle_find_const): New function,
5691	similar to muscle_find, but it works even when the muscle stores a
5692	const value.
5693	(muscle_grow_used_name_list): New function for constructing the used
5694	name list muscles that b4_check_for_unrecognized_names requires.
5695	* src/parse-gram.y (prologue_declaration): Warn if a variable is
5696	%define'd more than once.  Define the b4_used_percent_define_variables
5697	muscle with muscle_grow_used_name_list.
5698	(grammar_declaration): Abbreviate %code code with
5699	muscle_grow_used_name_list.
5700	* tests/input.at (%define errors): New.
5701
57022007-01-06  Joel E. Denny  <jdenny@ces.clemson.edu>
5703
5704	Provide warn_at, complain_at, and fatal_at function callbacks to the
5705	skeletons, and use this for %code qualifier complaints.
5706	* data/bison.m4 (b4_error_at): New, invoked by...
5707	(b4_warn_at, b4_complain_at, b4_fatal_at): ... these new macros to wrap
5708	the skeleton scanner's new @warn_at(...@), @complain_at(...@), and
5709	@fatal_at(...@) directives.
5710	(b4_check_percent_code_qualifiers): Rewrite to expect locations for
5711	qualifiers in b4_used_percent_code_qualifiers and to use
5712	b4_complain_at.
5713	* src/location.c, src/location.h (boundary_set_from_string): New global
5714	function.
5715	* src/muscle_tab.c, src/muscle_tab.h (muscle_boundary_grow): New global
5716	function.
5717	* src/parse-gram.y (grammar_declaration): Add locations for qualifiers
5718	to b4_used_percent_code_qualifiers.
5719	* src/scan-skel.l (fail_for_at_directive_too_few_args): New static
5720	function.
5721	(AT_DIRECTIVE_ARGC_MAX): Increase for boundary arguments.
5722	(lineno): Rename to...
5723	(out_lineno): ... this so I don't misunderstand it again.
5724	(SC_AT_DIRECTIVE_SKIP_WS): Don't increment out_lineno for newlines
5725	here; these newlines are in the input but not the output file.
5726	(SC_AT_DIRECTIVE_ARG): Likewise.  Extract directive execution to...
5727	(at_directive_perform): ... this new static function, and add handling
5728	of new @warn_at(...@), @complain_at(...@), and @fatal_at(...@)
5729	directives.
5730	* tests/input.at (Reject bad %code qualifiers): Update test output with
5731	locations and extend.
5732
5733	* tests/output.at (Output file name: [, Output file name: ]): Remove
5734	bogus comment about these tests failing.
5735
57362007-01-06  Joel E. Denny  <jdenny@ces.clemson.edu>
5737
5738	Clean up b4_check_percent_code_qualifiers a little.
5739	* data/bison.m4 (b4_check_percent_code_qualifiers): Expect qualifiers
5740	in b4_used_percent_code_qualifiers to be double-M4-quoted.  Rewrite
5741	documentation and add examples.
5742	* src/parse-gram.y (grammar_declaration): Double-M4-quote those
5743	qualifiers here.
5744
57452007-01-05  Joel E. Denny  <jdenny@ces.clemson.edu>
5746
5747	Don't use m4_divert since it makes m4_divert_push and m4_divert_pop
5748	unreliable -- especially when they're hidden inside another macro.
5749	* data/bison.m4, data/c++-skel.m4, data/c++.m4, data/c-skel.m4,
5750	data/c.m4: Remove m4_divert(-1).
5751	* data/glr.c, data/glr.cc, data/lalr1.cc, data/location.cc,
5752	data/push.c, data/yacc.c: Likewise, and replace m4_divert(0) with
5753	m4_divert_push(0) and m4_divert_pop(0).
5754	* src/output.c (output_skeleton): Don't add an m4_divert_push(0) and
5755	an m4_wrap([m4_divert_pop(0)]) to the M4.  Diversion -1, which is
5756	pushed and popped by m4sugar, should be first on the stack.
5757
5758	Provide warn, complain, and fatal function callbacks to the skeletons.
5759	This provides more flexibility than m4_fatal, improves the error
5760	message format, and captures messages for translation.  Discussed
5761	starting at
5762	<http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00063.html>.
5763	* data/bison.m4 (b4_error): New, invoked by...
5764	(b4_warn, b4_complain, b4_fatal): ... these new macros to wrap the
5765	skeleton scanner's new @warn(...@), @complain(...@), and @fatal(...@)
5766	directives.  Because these M4 macros might be called when the current
5767	diversion is -1 or 0, m4_divert_push and m4_divert_pop is used; thus
5768	the previous removal of uses of m4_divert, which caused trouble.
5769	(b4_check_percent_code_qualifiers): Use b4_complain instead of
5770	m4_fatal to report unrecognized %code qualifiers.
5771	* data/c++-skel.m4: Use b4_complain instead of m4_fatal to report C++
5772	push parser requests.
5773	* data/glr.c: Use b4_complain instead of m4_fatal to report
5774	non-deterministic push parser requests.
5775	Update @output usage to @output(...@) form.
5776	* data/glr.cc, data/lalr1.cc: Use b4_fatal instead of m4_fatal to
5777	report missing %defines.  Update @output usage to @output(...@) form.
5778	* data/location.cc, data/push.c, data/yacc.c: Update @output usage to
5779	@output(...@) form.
5780	* src/main.c (main): Invoke skel_scanner_free.
5781	* src/scan-skel.h (skel_scanner_free): Prototype new function.
5782	* src/scan-skel.l (FLEX_NO_OBSTACK): Don't define; we now need the
5783	obstack_for_string from flex-scanner.h.
5784	(YY_DECL): Use to declare skel_lex static.
5785	(decode_at_digraphs): Remove; now handled in the new
5786	SC_AT_DIRECTIVE_ARG start condition.
5787	(fail_for_at_directive_too_many_args, fail_for_invalid_at): New static
5788	functions.
5789	(at_directive_name, AT_DIRECTIVE_ARGC_MAX, at_directive_argc,
5790	at_directive_argv): New static globals.
5791	(INITIAL): Use fail_for_invalid_at.
5792	Don't parse `@output file_name\n' or `@basename(...@)'.  Instead,
5793	recognize the start of a generalized `@directive(...@)' form and
5794	start...
5795	(SC_AT_DIRECTIVE_ARG): ... this new start condition to parse the
5796	directive args (using the new obstack_for_string), to decode the
5797	contained @ diagraphs, and to perform the directive.  It recognizes
5798	@basename(...@), @warn(...@), @complain(...@), @fatal(...@), and
5799	@output(...@).
5800	(SC_AT_DIRECTIVE_SKIP_WS): New start condition started by
5801	SC_AT_DIRECTIVE_ARG to skip whitespace after the argument delimiter,
5802	`@,'.
5803	(scan_skel): Initialize obstack_for_string on the first call.
5804	(skel_scanner_free): New function to free obstack_for_string.
5805	* tests/input.at (Reject bad %code qualifiers): Update test output.
5806
58072007-01-04  Joel E. Denny  <jdenny@ces.clemson.edu>
5808
5809	Consolidate the 4 prologue alternative directives (%code, %requires,
5810	%provides, and %code-top) into a single %code directive with an
5811	optional qualifier field.  Discussed at
5812	<http://lists.gnu.org/archive/html/bison-patches/2007-01/msg00012.html>.
5813	* NEWS (2.3a+): Rewrite the existing entry for the prologue
5814	alternatives.
5815	* doc/bison.texinfo (Prologue Alternatives): Update.
5816	(Decl Summary): Update to %code "requires" and %code "provides".
5817	(Calc++ Parser): Update to %code "requires".
5818	(Table of Symbols): Remove entries for %requires, %provides, and
5819	%code-top.  Rewrite %code entry, and add a %code "QUALIFIER" entry.
5820	* data/bison.m4 (b4_user_provides, b4_user_requires): Remove as these
5821	are replaced by b4_percent_code_provides and b4_percent_code_requires,
5822	which are skeleton-specific.
5823	(b4_check_percent_code_qualifiers): New.  A skeleton can use this to
5824	declare what %code qualifiers it supports and to complain if any other
5825	qualifiers were used in the grammar.
5826	* data/glr.cc: Update to use b4_user_code([b4_percent_code_requires])
5827	and b4_user_code([b4_percent_code_provides]) in place of
5828	b4_user_requires and b4_user_provides.
5829	* data/glr.c, data/lalr1.cc, data/push.c, data/yacc.c: Likewise.
5830	Add b4_user_code([b4_percent_code_top]) and
5831	b4_user_code([b4_percent_code]).
5832	Invoke b4_check_percent_code_qualifiers.
5833	* src/parse-gram.y (PERCENT_CODE_TOP, PERCENT_PROVIDES,
5834	PERCENT_REQUIRES): Remove.
5835	(grammar_declaration): Remove RHS's for %code-top, %provides, and
5836	%requires.  Rewrite the %code RHS as the unqualified form defining the
5837	muscle b4_percent_code.  Add another RHS for the qualified %code form,
5838	which defines muscles of the form b4_percent_code_QUALIFIER and the
5839	b4_used_percent_code_qualifiers muscle.
5840	* src/scan-gram.l (PERCENT_CODE_TOP, PERCENT_PROVIDES,
5841	PERCENT_REQUIRES): Remove.
5842	* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Update to use
5843	%code "requires" and %code "provides".
5844	* tests/input.at (Reject bad %code qualifiers): New.
5845
58462007-01-03  Joel E. Denny  <jdenny@ces.clemson.edu>
5847
5848	Use the new code_props interface for destructors and printers.
5849	* src/symtab.h (symbol, semantic_type): Remove destructor_location and
5850	printer_location members, and change the type of the destructor and
5851	printer members to code_props.
5852	(symbol_destructor_set, symbol_destructor_get, symbol_printer_set,
5853	symbol_printer_get, semantic_type_destructor_set,
5854	semantic_type_printer_set, default_tagged_destructor_set,
5855	default_tagless_destructor_set, default_tagged_printer_set,
5856	default_tagless_printer_set): Use code_props in arguments and return
5857	types in place of char const * and location.
5858	(symbol_destructor_location_get, symbol_printer_location_get): Remove
5859	since the locations are now contained in the return of
5860	symbol_destructor_get and symbol_printer_get.
5861	* src/output.c (symbol_destructors_output, symbol_printers_output):
5862	Replace with...
5863	(symbol_code_props_output): ... this to eliminate duplicate code.
5864	(output_skeleton): Update to use symbol_code_props_output.
5865	* src/reader.c (symbol_should_be_used): Update use of
5866	symbol_destructor_get.
5867	* src/symlist.c (symbol_list_destructor_set, symbol_list_printer_set):
5868	Update uses of the various _destructor_set and _printer_set functions.
5869	* src/symtab.c: (default_tagged_destructor_location,
5870	default_tagless_destructor_location, default_tagged_printer_location,
5871	default_tagless_printer_location): Remove since we...
5872	(default_tagged_destructor, default_tagless_destructor,
5873	default_tagged_printer, default_tagless_printer): ... change the type
5874	of these to code_props.
5875	(symbol_new, semantic_type_new, symbol_destructor_set,
5876	semantic_type_destructor_set, symbol_destructor_get,
5877	symbol_printer_set, semantic_type_printer_set, symbol_printer_get,
5878	symbol_check_alias_consistency, default_tagged_destructor_set,
5879	default_tagless_destructor_set, default_tagged_printer_set,
5880	default_tagless_printer_set): Update.
5881	(symbol_destructor_location_get, symbol_printer_location_get): Remove.
5882	(SYMBOL_CODE_PRINT): New similar to SYMBOL_ATTR_PRINT but for
5883	code_props members.
5884	(symbol_print): Use SYMBOL_CODE_PRINT.
5885
58862007-01-03  Joel E. Denny  <jdenny@ces.clemson.edu>
5887
5888	Use the new code_props interface for rule actions.
5889	* src/symlist.h (symbol_list): Replace action, action_location, and
5890	used members with a code_props action_props member.
5891	* src/reader.c (symbol_should_be_used, grammar_rule_check,
5892	grammar_midrule_action, grammar_current_rule_merge_set,
5893	grammar_current_rule_symbol_append, packgram): Update.
5894	* src/scan-code.h (translate_rule_action): Remove, no longer used.
5895	* src/scan-code.l (handle_action_dollar): Update.
5896	(translate_rule_action): Remove, no longer used.
5897	* src/symlist.c (symbol_list_sym_new, symbol_list_syms_print): Update.
5898
58992007-01-02  Joel E. Denny  <jdenny@ces.clemson.edu>
5900
5901	Use the new code_props interface in parse-gram.y.
5902	* src/parse-gram.y (prologue_declaration, braceless, epilogue.opt):
5903	Update all uses of translate_* functions to use the new code_props
5904	interface and to use gram_scanner_last_string_free and
5905	code_scanner_last_string_free where possible.
5906	(grammar_declaration): symbol_list_destructor_set and
5907	symbol_list_printer_set now perform the translation, so don't do it
5908	here.  Use gram_scanner_last_string_free where possible.
5909	* src/scan-code.h, src/scan-code.l (translate_symbol_action,
5910	translate_code): Remove, no longer used.
5911	* src/symlist.h, src/symlist.c (symbol_list_destructor_set,
5912	symbol_list_printer_set): Perform code translation here rather than
5913	depending on the caller to do so.
5914
5915	* src/symlist.h (struct symbol_list): Correct some documentation typos.
5916	* src/scan-gram.h (gram_last_string): Remove declaration.
5917	* src/scan-gram.l (last_string): Declare it static.
5918
59192007-01-02  Joel E. Denny  <jdenny@ces.clemson.edu>
5920
5921	Encapsulate code properties and related functionality for the various
5922	destructors, printers, and actions into a code_props structure and
5923	interface.  This patch merely implements code_props in scan-code.h and
5924	scan-code.l.  Future patches will rewrite other modules to use it.
5925	Discussed starting at
5926	<http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00020.html>.
5927	* src/location.h (EMPTY_LOCATION_INIT): Define so that it's easier to
5928	consistently initialize const structs that have an empty location
5929	field.
5930	* src/location.c (empty_location): Initialize with EMPTY_LOCATION_INIT
5931	to ensure consistency.
5932	* src/scan-code.h (code_props): New structure.
5933	(code_props_none_init, CODE_PROPS_NONE_INIT, code_props_none): New
5934	function, macro, and const global variable for initializing a
5935	code_props with no code.
5936	(code_props_plain_init, code_props_symbol_action_init,
5937	code_props_rule_action_init, code_props_translate_code): The rest of
5938	the new code_props functional interface.  Among other things, the init
5939	functions set the code_props kind field so that
5940	code_props_translate_code will know whether to behave like
5941	translate_symbol_action, translate_rule_action, or translate_code.
5942	These old translate functions must remain until all other modules are
5943	updated to use the new code_props interface.
5944	(code_scanner_last_string_free): New function similar to
5945	gram_scanner_last_string_free.
5946	(code_scanner_free): Add documentation.
5947	* src/scan-code.l: Implement the new interface.
5948	(code_lex): Make it static, add a code_props* argument, and remove the
5949	rule argument.
5950	(last_string): New static global similar to the one in scan-gram.l.
5951	(SC_RULE_ACTION): Update to use the code_props* argument to code_lex
5952	instead of rule.
5953	(SC_SYMBOL_ACTION): For $$, set the is_value_used member of the
5954	code_props since Bison may one day use this information for destructors
5955	and printers.
5956	(<*><<EOF>>): Use STRING_FINISH so that last_string is set.
5957	(handle_action_dollar): Use symbol_list_n_get and set used flag
5958	directly since symbol_list_n_used_set is removed.
5959	(translate_action): Add a code_props* argument and remove the rule,
5960	action, and location arguments.  Pass the code_props* on to code_lex.
5961	(translate_rule_action, translate_symbol_action, translate_code):
5962	Rewrite as wrappers around the new code_props interface.
5963	* src/symlist.h, src/symlist.c (symbol_list_n_used_set): Remove since
5964	it would eventually need to break the encapsulation of code_props.
5965
59662007-01-01  Joel E. Denny  <jdenny@ces.clemson.edu>
5967
5968	* etc/.cvsignore: New.
5969
59702007-01-01  Joel E. Denny  <jdenny@ces.clemson.edu>
5971
5972	Add maintainer-push-check to run maintainer-check using push parsing in
5973	place of pull parsing where available.
5974	* Makefile.am (maintainer-push-check): New.
5975	* data/bison.m4 (b4_use_push_for_pull_if): New.
5976	* data/push.c: Redefine b4_push_if and b4_use_push_for_pull_if
5977	appropriately based on their existing values.
5978	(yypush_parse): Don't print push-parser-specific diagnostics if push
5979	parsing is being used in place of pull parsing.
5980	* data/yacc.c: If push parsing should replace pull parsing, redirect to
5981	push.c.
5982	* src/output.c (prepare): Check BISON_USE_PUSH_FOR_PULL environment
5983	variable, and insert b4_use_push_for_pull_flag into muscles.
5984	* tests/Makefile.am (maintainer-push-check): New.
5985
59862006-12-31  Joel E. Denny  <jdenny@ces.clemson.edu>
5987
5988	* data/push.c (yypush_parse): Set yynew = 1 at the end of a parse
5989	(whether successful or failed) so that yypush_parse can be invoked
5990	again to start a new parse using the same yypstate.
5991	* tests/torture.at (AT_DATA_STACK_TORTURE): For push mode, extend to
5992	check multiple yypull_parse invocations on the same yypstate.  For pull
5993	mode, extend to check multiple yyparse invocations.
5994	(Exploding the Stack Size with Alloca): Extend to try with
5995	%push-pull-parser.
5996	(Exploding the Stack Size with Malloc): Likewise.
5997
5998	* tests/calc.at (Simple LALR Calculator): Don't specify
5999	%skeleton "push.c" since %push-pull-parser implies that now.
6000	* tests/headers.at (export YYLTYPE): Don't check for the push
6001	declarations.  Otherwise, this test case can't be used to see if push
6002	mode can truly emulate pull mode.
6003	* tests/input.at (Torturing the Scanner): Likewise.
6004	* tests/local.at (AT_YACC_OR_PUSH_IF, AT_PUSH_IF): Remove.
6005	(AT_YYERROR_SEES_LOC_IF): Rather than AT_YACC_OR_PUSH_IF, use
6006	AT_YACC_IF, which now includes the case of push mode since %skeleton
6007	need not be used for push mode.  This will be more intuitive once
6008	push.c is renamed to yacc.c.
6009
60102006-12-31  Joel E. Denny  <jdenny@ces.clemson.edu>
6011
6012	For push mode, convert yyparse from a macro to a function, invoke yylex
6013	instead of passing a yylexp argument to yypull_parse, and don't
6014	generate yypull_parse or yyparse unless %push-pull-parser is declared.
6015	Discussed starting at
6016	<http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00163.html>.
6017	* data/bison.m4 (b4_pull_if): New.
6018	* data/c.m4 (b4_identification): Define YYPULL similar to YYPUSH.
6019	* data/push.c: Improve M4 quoting a little.
6020	(b4_generate_macro_args, b4_parenthesize): Remove.
6021	(yyparse): If there's a b4_prefix, #define this to b4_prefix[parse]
6022	any time a pull parser is requested.
6023	Don't #define this as a wrapper around yypull_parse.  Instead, when
6024	both push and pull are requested, make it a function that does that
6025	same thing.
6026	(yypull_parse): If there's a b4_prefix, #define this to
6027	b4_prefix[pull_parse] when both push and pull are requested.
6028	Don't define this as a function unless both push and pull are
6029	requested.
6030	Remove the yylexp argument and hard-code yylex invocation instead.
6031	* etc/bench.pl.in (bench_grammar): Use %push-pull-parser instead of
6032	%push-parser.
6033	* src/getargs.c (pull_parser): New global initialized to true.
6034	* getargs.h (pull_parser): extern it.
6035	* src/output.c (prepare): Insert pull_flag muscle.
6036	* src/parse-gram.y (PERCENT_PUSH_PULL_PARSER): New token.
6037	(prologue_declaration): Set both push_parser and pull_parser = true for
6038	%push-pull-parser.  Set push_parser = true and pull_parser = false for
6039	%push-parser.
6040	* src/scan-gram.l: Don't accept %push_parser as an alternative to
6041	%push-parser since there's no backward-compatibility concern here.
6042	Scan %push-pull-parser.
6043	* tests/calc.at (Simple LALR(1) Calculator): Use %push-pull-parser
6044	instead of %push-parser.
6045	* tests/headers.at (export YYLTYPE): Make yylex static, and don't
6046	prototype it in the module that calls yyparse.
6047	* tests/input.at (Torturing the Scanner): Likewise.
6048	* tests/local.at (AT_PUSH_IF): Check for %push-pull-parser as well.
6049
60502006-12-26  Joel E. Denny  <jdenny@ces.clemson.edu>
6051
6052	Update etc/bench.pl.  Optimize push mode a little (the yyn change
6053	deserves most of the credit).
6054	* Makefile.am (SUBDIRS): Add etc subdirectory.
6055	* configure.ac (AC_CONFIG_FILES): Add etc/bench.pl and etc/Makefile.
6056	* data/push.c (b4_declare_parser_state_variables): Move yyn, yyresult,
6057	yytoken, yyval, and yyloc declarations to...
6058	(yyparse or yypush_parse): ... here to improve performance.  For
6059	yypush_parse invocations after the first, be sure to assign yyn its old
6060	value again.
6061	(yypstate_new): Don't bother initializing the yyresult field since the
6062	initial value isn't used.
6063	(yyn, yyresult, yytoken, yyval, yyloc): For each NAME in this list,
6064	remove the #define that, in push mode, set it to yyps->NAME.
6065	* etc/Makefile.am: New.
6066	* etc/bench.pl: Remove and build it instead from...
6067	* etc/bench.pl.in: ... this new file.  Use @abs_top_builddir@ to invoke
6068	"tests/bison" from the build directory by default rather than just
6069	invoking "bison" from $PATH.
6070	(calc_grammar): Update push parser code: don't declare yylval globally,
6071	don't define yyparse_wrapper, and don't #define yyparse.
6072	(bench_grammar): Update to check all working combinations of yacc.c,
6073	push.c, impure, pure, pull, and push.
6074
60752006-12-25  Joel E. Denny  <jdenny@ces.clemson.edu>
6076
6077	For push mode, add pull wrappers around yypush_parse.
6078	* data/push.c: (b4_generate_macro_args, b4_parenthesize): New macros.
6079	(yypull_parse): New function wrapping yypush_parse.
6080	(yyparse): New #define wrapping yypull_parse.
6081	* tests/calc.at (_AT_DATA_CALC_Y): Call yyparse even when %push-parser
6082	is declared.
6083	* tests/headers.at (export YYLTYPE): Make yylex global.  For push mode,
6084	prototype yylex in the module that calls yyparse, and don't prototype
6085	yyparse there.  Otherwise, the yyparse expansion won't compile.
6086	* tests/input.at (Torturing the Scanner): Likewise.
6087
60882006-12-25  Joel E. Denny  <jdenny@ces.clemson.edu>
6089
6090	Enable push parsers to operate in impure mode.  Thus, %push-parser no
6091	longer implies %pure-parser.  The point of this change is to move
6092	towards being able to test the push parser code by running the entire
6093	test suite as if %push-parser had been declared.
6094	* data/push.c (yypush_parse): For impure mode, remove the
6095	yypushed_char, yypushed_val, and yypushed_loc arguments.
6096	Instead, declare these as local variables initialized to the global
6097	yychar, yylval, and yylloc.
6098	For the first yypush_parse invocation only, restore the initial values
6099	of these global variables when it's time to read a token since they
6100	have been overwritten.
6101	* src/parse-gram.y (prologue_declaration): Don't set pure_parser for
6102	%push-parser.
6103	* tests/calc.at (Simple LALR(1) Calculator): Always declare
6104	%pure-parser along with %push-parser since this test case was designed
6105	for pure push parsers.
6106	* tests/local.at (AT_PURE_OR_PUSH_IF): Remove unused.
6107	(AT_YACC_OR_PUSH_IF): New.
6108	(AT_YYERROR_SEES_LOC_IF): Fix enough that the test suite passes, but
6109	add a note that it's still wrong for some cases (as it has been for a
6110	while).
6111	(AT_PURE_LEX_IF): Use AT_PURE_IF instead of AT_PURE_OR_PUSH_IF since
6112	%push-parser no longer implies %pure-parser.
6113
61142006-12-20  Joel E. Denny  <jdenny@ces.clemson.edu>
6115
6116	Remove some unnecessary differences between the pull parser code and
6117	the push parser code.  This patch enables yynerrs in push mode.
6118	* data/push.c: Reformat M4 a little.
6119	(b4_yyerror_range): Remove and convert all uses to just yyerror_range.
6120	(b4_declare_scanner_communication_variables): Don't omit yynerrs just
6121	because push mode is on.  Instead, if pure mode is on, move yynerrs
6122	to...
6123	(b4_declare_parser_state_variables): ... here.
6124	(yynerrs, yyerror_range): For push mode, #define each NAME in this list
6125	to yyps->NAME so it can be used in yypush_parse.
6126	(yypush_parse): Don't omit uses of yynerrs in push mode.
6127
61282006-12-20  Joel E. Denny  <jdenny@ces.clemson.edu>
6129
6130	Fix bug such that the first pushed token's value and location are
6131	sometimes overwritten (sometimes by %initial-action) before being used.
6132	* data/push.c (yypush_parse): Rename arguments yynchar, yynlval, and
6133	yynlloc to yypushed_char, yypushed_val, and yypushed_loc for clarity.
6134	For the first yypush_parse invocation, initialize yychar to YYEMPTY to
6135	more closely mimic the pull parser logic.
6136	Don't copy the pushed token to yychar, yylval, and yylloc until it's
6137	time to read a token, which is after any initialization of yylval and
6138	yylloc.
6139	(gottoken): Rename label to...
6140	(yyread_pushed_token): ... for clarity and to avoid infringing on the
6141	user namespace.
6142
61432006-12-20  Joel E. Denny  <jdenny@ces.clemson.edu>
6144
6145	Rearrange initialization of the parser state variables so that the
6146	skeleton doesn't have to have a copy for pull mode and another for push
6147	mode.  This patch also fixes at least a bug such that yylloc was not
6148	initialized (with b4_location_initial_line and
6149	b4_location_initial_column) upon calling yypush_parse.  However, that
6150	initialization now overwrites the first token's location;
6151	%initial-action assigning @$ already did the same thing, and both bugs
6152	will be fixed in a later patch.
6153	* data/push.c (b4_yyssa): Remove and convert all uses to just yyssa.
6154	(b4_declare_parser_state_variables): Remove initialization of yytoken,
6155	yyss, yyvs, yyls, and yystacksize.
6156	(yypstate_new): Remove initialization of some yypstate fields: yystate,
6157	yyerrstatus, yytoken, yyss, yyvs, yyls, yystacksize, yyssp, yyvsp, and
6158	yylsp.
6159	(yyssa, yyvsa, yylsa): For push mode, #define each NAME in this list to
6160	yyps->NAME so it can be used in yypush_parse.
6161	(yyparse or yypush_parse): For yypush_parse, don't print the
6162	"Starting parse" diagnostic for invocations after the first.
6163	Add initialization of yytoken, yyss, yyvs, yyls, and yystacksize; for
6164	yypush_parse, only do it for the first invocation.
6165	Allow yystate, yyerrstatus, yyssp, yyvsp, yylsp, and yylloc
6166	initialization to occur in yypush_parse but only on the first
6167	invocation.
6168
61692006-12-19  Joel E. Denny  <jdenny@ces.clemson.edu>
6170
6171	* data/push.c: Add CPP guards around push parser declarations in both
6172	the header and the code file.
6173	In the code file, move the push parser declarations to the same place
6174	they appear in the header file.
6175	Clean up the M4 some, especially the inconsistent underquoting in
6176	some b4_c_function_def and b4_c_function_decl uses.
6177
61782006-12-19  Joel E. Denny  <jdenny@ces.clemson.edu>
6179
6180	Encapsulate the push parser state variables into an M4 macro so the
6181	push skeleton doesn't have to list them again for pull mode's yyparse.
6182	For push mode, remove yypush_parse's local equivalents of these
6183	variables to eliminate unnecessary copying between the two sets at
6184	run-time.  This patch also fixes at least a bug related to multiple
6185	%initial-action invocations in push mode.
6186	* data/push.c (b4_declare_parser_variables): Rename to...
6187	(b4_declare_scanner_communication_variables): ... this for clarity and
6188	update both uses.
6189	(b4_declare_yyparse_variables): Remove and move its contents to the one
6190	spot where it was invoked.
6191	(b4_declare_parser_state_variables): New macro containing the parser
6192	state variables required by push mode.
6193	(struct yypstate): Replace all fields but yynew with
6194	b4_declare_parser_state_variables.
6195	(yystate, yyn, yyresult, yyerrstatus, yytoken, yyss, yyssp, yyvs,
6196	yyvsp, yyls, yylsp, yystacksize, yyval, yyloc): For push mode, #define
6197	each NAME in this list to yyps->NAME so it can be used in yypush_parse.
6198	(yyparse or yypush_parse): For yyparse in pull mode, replace local
6199	parser state variable declarations with
6200	b4_declare_parser_state_variables.
6201	Don't initialize parser state variables when calling yypush_parse since
6202	yypstate_new already does that.
6203	Invoke the user's initial action only upon the first yypush_parse
6204	invocation.
6205	Remove all code that copies between the local parser state variables
6206	and the yypstate.
6207
62082006-12-19  Joel E. Denny  <jdenny@ces.clemson.edu>
6209
6210	* data/push.c (union yyalloc): Rename yyss, yyvs, and yyls fields to
6211	prevent a name collision in a future patch where these names will
6212	sometimes be #define'd.
6213	(YYSTACK_RELOCATE): Add an argument to select a union yyalloc field
6214	since it no longer has the same name as the existing argument.
6215	(yyparse or yypush_parse): Update all uses of YYSTACK_RELOCATE.
6216
62172006-12-19  Paolo Bonzini  <bonzini@gnu.org>
6218	and Joel E. Denny  <jdenny@ces.clemson.edu>
6219
6220	* doc/bison.texinfo (Decl Summary): In the %language entry, mention
6221	that the argument is case-insensitive, and there's no `=' here.
6222	For the %skeleton entry, mention that %language is better.
6223	(Bison Options): Likewise for --language and --skeleton.  Move the
6224	--skeleton entry so that the `Tuning the parser' section is sorted
6225	alphabetically on long options.
6226	(C++ Bison Interface): Don't use the word skeleton.  Don't explain the
6227	%language directive in detail here; cross-reference the %language
6228	documentation instead.
6229	(Calc++ Parser): Use `%require "@value{VERSION}"' rather than
6230	`%require "2.3b"' so that the example is always up-to-date.
6231	(Table of Symbols): Add entries for %language and %skeleton.
6232	* examples/extexi (normalize): Instead of replacing every %require
6233	argument with the current Bison version, just substitute for
6234	`@value{VERSION}'.  This guarantees that we're testing what actually
6235	appears in the documentation.
6236	* examples/calc++/Makefile.am ($(calc_extracted)): Use `$(VERSION)'
6237	rather than `@VERSION@'.
6238
62392006-12-18  Paul Eggert  <eggert@cs.ucla.edu>
6240
6241	* NEWS: Reword the %language news a bit, and put it earlier.
6242
6243	* src/getargs.c (skeleton_arg): Last arg is now location const *.
6244	Rewrite to simplify the logic.
6245	(language_argmatch): Likewise.
6246	(program_name): We now own this var.
6247	* src/getargs.h (struct bison_language): Use char[] rather than
6248	const char *.
6249
6250	* doc/bison.texinfo (Decl Summary, Bison Options): Don't claim
6251	Java is supported.
6252	* src/complain.c (program_name): Remove decl; no longer needed.
6253	* src/main.c (program_name): Remove; now belongs to getargs.
6254
62552006-12-18  Paolo Bonzini  <bonzini@gnu.org>
6256
6257	* NEWS: Document %language.
6258
6259	* data/Makefile.am (dist_pkgdata_DATA): Add c-skel.m4, c++-skel.m4.
6260
6261	* data/c-skel.m4, data/c++-skel.m4: New files.
6262	* data/glr.c: Complain on push parsers.
6263
6264	* doc/bison.texinfo (C++ Parser Interface): Prefer %language
6265	over %skeleton.
6266	(Decl Summary): Document %language and %skeleton.
6267	(Command line): Document -L.
6268
6269	* examples/extexi: Rewrite %require directive.
6270	* examples/calc++/Makefile.am: Pass VERSION to extexi.
6271
6272	* src/files.c (compute_exts_from_gc): Look in language structure
6273	for .y extension.
6274	(compute_file_name_parts): Check whether .tab should be added.
6275	* src/getargs.c (valid_languages, skeleton_prio, language_prio):
6276	(language, skeleton_arg, language_argmatch): New.
6277	(long_options): Add --language.
6278	(getargs): Use skeleton_arg, add -L/--language.
6279	* src/getargs.h: Include location.h.
6280	(struct bison_language, language, skeleton_arg, language_argmatch): New.
6281	* src/output.c (prepare): Pick default skeleton from struct language.
6282	Don't dispatch C skeletons here.
6283	* src/parse-gram.y (PERCENT_LANGUAGE): New.
6284	(prologue_declaration): Add "%language" rule, use skeleton_arg.
6285	* src/scan-gram.l ("%language"): New rule.
6286
6287	* tests/calc.at: Test %skeleton and %language.
6288	* tests/local.at (AT_SKEL_CC_IF): Look for %language.
6289	(AT_GLR_IF): Look for %skeleton "glr.cc".
6290	(AT_LALR1_CC_IF, AT_GLR_CC_IF): Rewrite.
6291	(AT_YACC_IF): Reject %language.
6292
62932006-12-18  Paul Eggert  <eggert@cs.ucla.edu>
6294
6295	* src/symtab.h (struct semantic_type): Remove the tag 'semantic_type',
6296	since it wasn't used; only the typedef name 'semantic_type' is needed.
6297	Also, omit trailing white space.
6298
6299	* bootstrap: Sync from coreutils.
6300	(gnulib_extra_files): Add build-aux/announce.gen.
6301	(slurp): Adjust .gitignore files like .cvsignore files.
6302	* build-aux/announce-gen: Remove from CVS, since bootstrap
6303	now creates this.
6304
63052006-12-16  Joel E. Denny  <jdenny@ces.clemson.edu>
6306
6307	Make %push-parser imply %pure-parser.  This fixes several bugs; see
6308	<http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00148.html>.
6309	* src/parse-gram.y (prologue_declaration): For %push-parser, also set
6310	pure_parser = true.
6311	* data/push.c: Don't bother testing b4_push_if when deciding whether
6312	to expand b4_declare_parser_variables globally.
6313	(yypush_parse): Likewise in here.
6314
6315	* data/push.c (yypush_parse): Add b4_parse_param to arguments.
6316	(yy_reduce_print): Reformat M4 for readability.
6317
63182006-12-15  Bob Rossi  <bob@brasko.net>
6319	and Joel Denny  <jdenny@ces.clemson.edu>
6320
6321	* data/push.c (yypstate): Add typedef, and update all uses of
6322	struct yypstate to just yypstate.
6323	* tests/calc.at (_AT_DATA_CALC_Y): Update here as well.
6324
63252006-12-14  Bob Rossi  <bob@brasko.net>
6326
6327	* data/push.c (yypush_parse): Declare prototype regardless of
6328	%locations option.
6329
63302006-12-14  Bob Rossi  <bob@brasko.net>
6331
6332	* data/push.c (yyparse): Remove the prototype and the #define when in
6333	push-parser mode.
6334
63352006-12-13  Bob Rossi  <bob@brasko.net>
6336
6337	* data/push.c (yypstate_init): Rename to...
6338	(yypstate_new): ... this and use b4_c_function_def.
6339	(yypstate_delete): New.
6340	(yypush_parse): Change parameters yynval and yynlloc to be const.
6341	* tests/calc.at (_AT_DATA_CALC_Y): Use new yypstate_new and
6342	yypstate_delete functions.
6343
63442006-12-13  Joel E. Denny  <jdenny@ces.clemson.edu>
6345
6346	* configure.ac (AC_PREREQ): Require Autoconf 2.61 because of our
6347	strange test case titles.  Reported by Bob Rossi.
6348
63492006-12-13  Paul Eggert  <eggert@cs.ucla.edu>
6350
6351	* TODO: Add pointer to Sylvain Schmitz's work on static detection
6352	of potential ambiguities in GLR grammers.
6353
63542006-12-12  Joel E. Denny  <jdenny@ces.clemson.edu>
6355
6356	* tests/testsuite.at (AT_CHECK): When checking if $1 starts with
6357	`bison ', use m4_index instead of m4_substr since chopping up a string
6358	containing M4-special characters causes problems here.
6359
6360	Fix a couple of bugs related to special characters in user-specified
6361	file names, and make it easier for skeletons to compute output file
6362	names with the same file name prefix as Bison-computed output file
6363	names.
6364	* data/glr.cc, data/push.c, data/yacc.c: In @output, use
6365	b4_parser_file_name and b4_spec_defines_file instead of
6366	@output_parser_name@ and @output_header_name@, which are now redundant.
6367	* data/glr.c, data/lalr1.cc: Likewise.  Also, in header #include's, use
6368	b4_parser_file_name, b4_spec_defines_file, and the new
6369	@basename(FILENAME@) instead of @output_parser_name@ and
6370	@output_header_name@, which inappropriately escaped the file names as
6371	C string literals.
6372	* src/files.c (all_but_ext): Remove static qualifier.
6373	(compute_output_file_names): Move `free (all_but_ext)' to...
6374	(output_file_names_free): ... here since all_but_ext is needed later.
6375	* src/files.h (all_but_ext): Extern.
6376	* src/muscle_tab.h (MUSCLE_INSERT_STRING_RAW): New macro that does
6377	exactly what MUSCLE_INSERT_STRING used to do.
6378	(MUSCLE_INSERT_STRING): Use MUSCLE_OBSTACK_SGROW so that M4-special
6379	characters are escaped properly.
6380	* src/output.c (prepare): Define muscle file_name_all_but_ext as
6381	all_but_ext.
6382	For pkgdatadir muscle, maintain previous functionality by using
6383	MUSCLE_INSERT_STRING_RAW instead of MUSCLE_INSERT_STRING.  The problem
6384	is that b4_pkgdatadir is used inside m4_include in the skeletons, so
6385	digraphs would never be expanded.  Hopefully no one has M4-special
6386	characters in his Bison installation path.
6387	* src/scan-skel.l: Don't parse @output_header_name@ and
6388	@output_parser_name@ anymore since they're now redundant.
6389	In @output, use decode_at_digraphs.
6390	Parse a new @basename command that invokes last_component.
6391	(decode_at_digraphs): New.
6392	(BASE_QPUTS): Remove unused.
6393	* tests/output.at (AT_CHECK_OUTPUT_FILE_NAME): New macro.
6394	(Output file name): New tests.
6395
63962006-12-09  Joel E. Denny  <jdenny@ces.clemson.edu>
6397
6398	Warn about output files that are generated by the skeletons and that
6399	conflict with other output files.
6400	* data/glr.c: Don't generate the header file here when glr.cc does.
6401	* src/files.c (file_names, file_names_count): New static globals.
6402	(compute_output_file_names): Invoke output_file_name_check for files
6403	not generated by the skeletons and remove existing checks.
6404	(output_file_name_check): New function that warns about conflicting
6405	output file names.
6406	(output_file_names_free): Free file_names.
6407	* src/files.h (output_file_name_check): Declare.
6408	* src/scan-skel.l: Invoke output_file_name_check for files generated by
6409	the skeletons.
6410	* tests/output.at (AT_CHECK_CONFLICTING_OUTPUT): New.
6411	(Conflicting output files): New tests.
6412
64132006-12-09  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
6414
6415	* doc/bison.texinfo: Fix a couple of typos.
6416
64172006-12-08  Bob Rossi  <bob@brasko.net>
6418
6419	* data/push.c: (yypvarsinit, yypvars, struct yypvars, yypushparse):
6420	Rename to...
6421	(yypstate_init, yypstate, struct yypstate, yypush_parse): ... these and
6422	update all uses.
6423	(b4_yyssa, b4_yyerror_range, yypstate_init): Rename pv to yyps.
6424	(yypush_parse): Rename yypvars argument to yyps and remove redundant
6425	local pv.
6426	(yypstate_init, yypush_parse): Declare in Bison-generated header file.
6427	* tests/calc.at (_AT_DATA_CALC_Y): Use newly named functions.
6428
64292006-12-07  Bob Rossi  <bob@brasko.net>
6430	and Joel Denny  <jdenny@ces.clemson.edu>
6431
6432	* data/push.c (yypvarsinit): Change return type from void* to struct
6433	yypvars*. No longer cast to void* on return.
6434	(struct yypvars): Remove yylen since it need not be remembered between
6435	yypushparse invocations.
6436	(yypushparse): Don't copy between yylen and pv->yylen.
6437
64382006-12-05  Bob Rossi  <bob@brasko.net>
6439
6440	* data/push.c (yychar_set, yylval_set, yylloc_set): Delete.
6441	(yypushparse): Add yynchar, yynlval, yynlloc parameters.
6442	(b4_declare_parser_variables): Do not declare yynerrs for push mode.
6443	(struct yypvars): Remove b4_declare_parser_variables.
6444	(yypvarsinit): Remove init code for removed variables.
6445	(global scope): Do not declare b4_declare_parser_variables if
6446	push or pure mode.
6447	(yypushparse): Add b4_declare_parser_variables.
6448	Init new local variables, and remove init code for removed
6449	yypvars variables.
6450	(yyparse): Delete.
6451	* tests/calc.at (_AT_DATA_CALC_Y): Call yypushparse for push mode
6452	and yyparse for other modes.
6453	(AT_CHECK_CALC_LALR): Added '%skeleton "push.c"' for push tests.
6454	* tests/local.at (AT_PUSH_IF, AT_PURE_OR_PUSH_IF): Added.
6455	(AT_YYERROR_SEES_LOC_IF): push-parser makes this false.
6456	(AT_PURE_LEX_IF): True if pure or push parser.
6457
64582006-12-05  Joel E. Denny  <jdenny@ces.clemson.edu>
6459
6460	Document Yacc prologue alternatives and default %destructor's and
6461	%printer's as experimental.  Don't mention Java yet.  Discussed at
6462	<http://lists.gnu.org/archive/html/bison-patches/2006-12/msg00002.html>.
6463	* NEWS (2.3a+): Say they're experimental.  Remove any mention of Java.
6464	(2.3a): Annotate this entry to say the old forms of these features were
6465	also experimental.
6466	* doc/bison.texinfo (Prologue Alternatives, Freeing Discarded Symbols,
6467	Table of Symbols): Say they're experimental.  Comment out any mention
6468	of Java (we'll want this back eventually).
6469
64702006-12-01  Joel E. Denny  <jdenny@ces.clemson.edu>
6471
6472	Support a file name argument to %defines.  Deprecate `=' in
6473	%file-prefix, %name-prefix, and %output.  Discussed at
6474	<http://lists.gnu.org/archive/html/help-bison/2006-09/msg00001.html>.
6475	* NEWS (2.3a+): Mention.
6476	* doc/bison.texinfo (Decl Summary, Table of Symbols): Add entry for new
6477	form of %defines, and remove `=' from entries for %file-prefix,
6478	%name-prefix, and %output.
6479	* src/parse-gram.y (prologue_declaration): Implement.
6480	* tests/calc.at (Simple LALR Calculator, Simple GLR Calculator, Simple
6481	LALR1 C++ Calculator, Simple GLR C++ Calculator): Remove the `=' from
6482	all but one occurrence of %name-prefix.
6483	* tests/headers.at (export YYLTYPE): Remove the `=' from %name-prefix.
6484	* tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Likewise.
6485	* tests/output.at (AT_CHECK_OUTPUT): Remove the `=' from all but one
6486	occurrence of each of %file-prefix and %output.  Add check for %defines
6487	with argument.
6488	* tests/reduce.at (Useless Terminals, Useless Nonterminals,
6489	Useless Rules, Reduced Automaton, Underivable Rules, Empty Language):
6490	Remove the `=' from %output.
6491
64922006-11-21  Joel E. Denny  <jdenny@ces.clemson.edu>
6493
6494	Don't escape $ in test case titles since Autoconf 2.61 now does that
6495	correctly.
6496	* tests/actions.at (Default %printer and %destructor are not for error
6497	or $undefined): Here.
6498	(Default %printer and %destructor are not for $accept): Here.
6499	* tests/input.at (Invalid $n and @n): Here.
6500
65012006-11-20  Joel E. Denny  <jdenny@ces.clemson.edu>
6502
6503	Rename <!> to <>.  Discussed starting at
6504	<http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00039.html>.
6505	* NEWS (2.3a+): Update.
6506	* doc/bison.texinfo (Freeing Discarded Symbols, Table of Symbols):
6507	Update.
6508	* src/parse-gram.y (TYPE_TAG_NONE, generic_symlist_item): Implement.
6509	* src/scan-gram.l (INITIAL): Implement.
6510	* src/symlist.c (symbol_list_default_tagless_new): Update comment.
6511	* src/symlist.h (symbol_list, symbol_list_default_tagless_new): Update
6512	comment.
6513	* tests/actions.at (Default tagless %printer and %destructor,
6514	Default tagged and per-type %printer and %destructor,
6515	Default %printer and %destructor are not for error or $undefined,
6516	Default %printer and %destructor are not for $accept,
6517	Default %printer and %destructor for mid-rule values): Update.
6518	* tests/input.at (Default %printer and %destructor redeclared,
6519	Unused values with default %destructor): Update.
6520
65212006-11-17  Joel E. Denny  <jdenny@ces.clemson.edu>
6522
6523	Don't let %prec take a nonterminal.
6524	* src/reader.c (grammar_current_rule_prec_set): Make the %prec symbol a
6525	token.
6526	* tests/input.at (%prec takes a token): New test checking that %prec
6527	won't take a nonterminal.
6528
65292006-11-10  Joel E. Denny  <jdenny@ces.clemson.edu>
6530
6531	* tests/testsuite.at (AT_CHECK): Don't miss an exit value of 0 because
6532	it was double-quoted.
6533	* src/Makefile.am (YACC): Use --warnings=all,error so that Bison's own
6534	grammar is maintained with Bison's highest standards.
6535	* src/getargs.c: Fix some typos in Doxygen comments.
6536
65372006-11-10  Joel E. Denny  <jdenny@ces.clemson.edu>
6538
6539	Fix memory leaks in scanners generated by at least Flex 2.5.9 and
6540	later.  Reported by Paul Eggert in
6541	<http://lists.gnu.org/archive/html/bison-patches/2006-11/msg00014.html>.
6542	* src/flex-scanner.h (yylex_destroy): Define for Flex before 2.5.9.
6543	* src/scan-code.l (translate_action): Don't bother invoking
6544	yy_delete_buffer (YY_CURRENT_BUFFER) before creating the first buffer.
6545	(code_scanner_free): Instead of invoking
6546	yy_delete_buffer (YY_CURRENT_BUFFER) directly, invoke yylex_destroy,
6547	which frees more.
6548	* src/scan-gram.l (gram_scanner_free): Likewise.
6549	* src/scan-skel.l (scan_skel): Likewise.
6550
65512006-11-09  Joel E. Denny  <jdenny@ces.clemson.edu>
6552
6553	* src/files.c (tr): Change return type to void.
6554	* src/muscle_tab.c (muscle_insert): Free storage in case muscle_grow
6555	has been called previously for the same key.
6556	(muscle_find): Return storage instead of value so that
6557	--enable-gcc-warnings doesn't produce warnings that the return discards
6558	const.  aver that the value and storage are the same since storage
6559	could potentially be NULL when value is not.
6560	* tests/testsuite.at (AT_CHECK): Treat an unspecified exit value the
6561	same as 0.
6562
65632006-11-08  Paul Eggert  <eggert@cs.ucla.edu>
6564
6565	* bootstrap.conf (excluded_files): Exclude m4/codeset.m4 (undoing
6566	the earlier change today), m4/intl.m4, m4/intldir.m4.  This gives
6567	us a slightly cleaner distribution, and also works.
6568	* m4/.cvsignore: Add inline.m4, wint_t.m4 to accommodate recent
6569	gnulib changes.
6570
65712006-11-08  Joel E. Denny  <jdenny@ces.clemson.edu>
6572	and Paul Eggert  <eggert@cs.ucla.edu>
6573
6574	Don't let Bison leak memory except when it complains.
6575	* src/files.h (parser_file_name, spec_verbose_file, spec_graph_file):
6576	(spec_defines_file, dir_prefix): Now char *, not const char *,
6577	since they are freed.
6578	* src/files.c: Likewise.
6579	(all_but_ext, all_but_tab_ext, src_extension, header_extension):
6580	Likewise.
6581	(tr): Now operates in-place.  All uses changed.
6582	(compute_exts_from_gf, compute_exts_from_src): Don't leak temporary
6583	values.
6584	(compute_file_name_parts, compute_output_file_names): Don't store
6585	read-only data in variables that will be freed.
6586	(compute_output_file_names): Free all_but_ext, all_but_tab_ext,
6587	src_extension, and header_extension.
6588	(output_file_names_free): New public function to free
6589	spec_verbose_file, spec_graph_file, spec_defines_file,
6590	parser_file_name, and dir_prefix.
6591	* src/getargs.c (getargs): Don't store read-only data in variables that
6592	will be freed.
6593	* src/main.c (main): Invoke output_file_names_free, code_scanner_free
6594	(which previously existed but was unused), and quotearg_free.
6595	* src/muscle_tab.h (muscle_insert): value arg is now a `char const *'.
6596	* src/muscle_tab.c: Likewise.
6597	(muscle_entry): Make the value char const *,
6598	and add a new storage member that is char * and can be freed.
6599	(muscle_entry_free): New private function.
6600	(muscle_init): Use it instead of free.
6601	(muscle_insert, muscle_grow): Update and use new storage member.
6602	(muscle_code_grow): Free the string passed to muscle_grow
6603	since it's not needed anymore.
6604	* src/parse-gram.y (%union): Make `chars' member a `char const *', and
6605	add a new `char *code' member.
6606	("{...}"): Declare semantic type as code.
6607	* src/scan-code.h (translate_rule_action):
6608	(translate_symbol_action, translate_code, translate_action): Return
6609	`char const *' rather than `char *' since external code should not free
6610	these strings.
6611	* src/scan-code.l: Likewise.
6612	* src/scan-gram.l (<SC_BRACED_CODE>): Use val->code for BRACED_CODE,
6613	which is "{...}" in the parser.
6614	* tests/Makefile.am (maintainer-check-valgrind): Set
6615	VALGRIND_OPTS='--leak-check=full --show-reacheable=yes' before invoking
6616	Valgrind.
6617	* tests/calc.at (_AT_DATA_CALC_Y): fclose the FILE* so Valgrind doesn't
6618	complain.
6619	* tests/testsuite.at (AT_CHECK): Redefine so that running Bison and
6620	expecting a non-zero exit status sets --leak-check=summary and
6621	--show-reachable=no for Valgrind.  Bison unabashedly leaks memory in
6622	this case, and we don't want to hear about it.
6623
66242006-11-08  Paul Eggert  <eggert@cs.ucla.edu>
6625
6626	* bootstrap (runtime-po/Makevars): Derive from po/Makevars
6627	instead of from the template, to simplify configuration a bit.
6628	* bootstrap.conf (excluded_files): Don't exclude m4/codeset.m4
6629	and m4/wint_t.m4, as they are needed with the latest gnulib.
6630
66312006-10-31  Joel E. Denny  <jdenny@ces.clemson.edu>
6632
6633	Disable unset/unused mid-rule value warnings by default, and recognize
6634	--warnings=midrule-values to enable them.  Discussed starting at
6635	<http://lists.gnu.org/archive/html/help-bison/2006-10/msg00030.html>.
6636	* NEWS (2.3a+): Mention.
6637	* src/getargs.c, src/getargs.h (warnings_args, warnings_types, enum
6638	warnings): Add entry for midrule-values subargument.
6639	* src/reader.c (symbol_should_be_used): Don't return true just because
6640	the value is a set/used mid-rule value unless
6641	--warnings=midrule-values was specified.
6642	* tests/input.at (Unused values, Unused values before symbol
6643	declarations): Run tests with and without --warnings=midrule-values.
6644
6645	* src/reader.c (check_and_convert_grammar): Use symbol_list_free rather
6646	than LIST_FREE directly.
6647
66482006-10-31  Joel E. Denny  <jdenny@ces.clemson.edu>
6649
6650	Finish implementing --warnings=error, which should not be implied by
6651	--warnings=all (or by its synonyms -W and --warnings without
6652	subarguments).
6653	* src/complain.c (set_warning_issued): New function to report that
6654	warnings are being treated as errors and to record an error if so.
6655	Invoke...
6656	(warn_at, warn): ... here.
6657	* src/getargs.c (warnings_args, warnings_types): Reorder so that
6658	"error - warnings are errors" does not appear above "all - all of the
6659	above".
6660	(getargs): For -W and --warnings without subarguments, don't let
6661	FLAGS_ARGMATCH set warnings_error in warnings_flag.
6662	* src/getargs.h (enum warnings): Unset warnings_error in warnings_all.
6663
66642006-10-31  Joel E. Denny  <jdenny@ces.clemson.edu>
6665
6666	* src/getargs.c (flags_argmatch): Don't cause segmentation fault for
6667	empty subargument list.  For example: `bison  --warnings=  parser.y'.
6668
66692006-10-21  Joel E. Denny  <jdenny@ces.clemson.edu>
6670
6671	* data/push.c, data/yacc.c: Make sure there's a newline at the end of
6672	the parser header file so that gcc doesn't warn.
6673
66742006-10-21  Joel E. Denny  <jdenny@ces.clemson.edu>
6675
6676	Split the default %destructor/%printer into two kinds: <*> and <!>.
6677	Discussed starting at
6678	<http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00060.html>.
6679	* NEWS (2.3a+): Mention.
6680	* doc/bison.texinfo (Freeing Discarded Symbols): Document this and the
6681	previous change today related to mid-rules.
6682	(Table of Symbols): Remove %symbol-default and add <*> and <!>.
6683	* src/parse-gram.y (PERCENT_SYMBOL_DEFAULT): Remove.
6684	(TYPE_TAG_ANY): Add as <*>.
6685	(TYPE_TAG_NONE): Add as <!>.
6686	(generic_symlist_item): Remove RHS for %symbol-default and add RHS's
6687	for <*> and <!>.
6688	* src/scan-gram.l (PERCENT_SYMBOL_DEFAULT): Remove.
6689	(TYPE_TAG_ANY, TYPE_TAG_NONE): Add.
6690	* src/symlist.c (symbol_list_default_new): Split into tagged and
6691	tagless versions.
6692	(symbol_list_destructor_set, symbol_list_printer_set): Split
6693	SYMLIST_DEFAULT case into SYMLIST_DEFAULT_TAGGED and
6694	SYMLIST_DEFAULT_TAGLESS.
6695	* src/symlist.h: Update symbol_list_default*_new prototypes.
6696	(symbol_list.content_type): Split enum value SYMLIST_DEFAULT into
6697	SYMLIST_DEFAULT_TAGGED and SYMLIST_DEFAULT_TAGLESS.
6698	* src/symtab.c (default_destructor, default_destructor_location,
6699	default_printer, default_printer_location): Split each into tagged and
6700	tagless versions.
6701	(symbol_destructor_get, symbol_destructor_location_get,
6702	symbol_printer_get, symbol_printer_location_get): Implement tagged
6703	default and tagless default cases.
6704	(default_destructor_set, default_printer_set): Split each into tagged
6705	and tagless versions.
6706	* src/symtab.h: Update prototypes.
6707	* tests/actions.at (Default %printer and %destructor): Rename to...
6708	(Default tagless %printer and %destructor): ... this, and extend.
6709	(Per-type %printer and %destructor): Rename to...
6710	(Default tagged and per-type %printer and %destructor): ... this, and
6711	extend.
6712	(Default %printer and %destructor for user-defined end token): Extend.
6713	(Default %printer and %destructor are not for error or $undefined):
6714	Update.
6715	(Default %printer and %destructor are not for $accept): Update.
6716	(Default %printer and %destructor for mid-rule values): Extend.
6717	* tests/input.at (Default %printer and %destructor redeclared): Extend.
6718	(Unused values with default %destructor): Extend.
6719
67202006-10-21  Joel E. Denny  <jdenny@ces.clemson.edu>
6721
6722	Don't apply the default %destructor/%printer to an unreferenced midrule
6723	value.  Mentioned at
6724	<http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00104.html>.
6725	* src/symtab.c (dummy_symbol_get): Name all dummy symbols initially
6726	like $@n instead of just @n so that the default %destructor/%printer
6727	logic doesn't see them as user-defined symbols.
6728	(symbol_is_dummy): Check for both forms of the name.
6729	* src/reader.c (packgram): Remove the `$' from each midrule symbol
6730	name for which the midrule value is referenced in any action.
6731	* tests/actions.at (Default %printer and %destructor for mid-rule
6732	values): New test.
6733	* tests/regression.at (Rule Line Numbers, Web2c Report): Update output
6734	for change to dummy symbol names.
6735
67362006-10-20  Joel E. Denny  <jdenny@ces.clemson.edu>
6737
6738	Warn about unset midrule $$ if the corresponding $n is used.
6739	* src/reader.c (symbol_should_be_used): Check midrule parent rule for
6740	$n usage.
6741	(packgram): Before invoking grammar_rule_check on any rule, make sure
6742	all actions have already been scanned in order to set `used' flags.
6743	Otherwise, checking that a midrule's $$ is set will not always work
6744	properly because the midrule check must forward-reference the midrule's
6745	parent rule.
6746	* tests/input.at (AT_CHECK_UNUSED_VALUES): Extend to check the new
6747	warning.
6748
67492006-10-20  Joel E. Denny  <jdenny@ces.clemson.edu>
6750
6751	More improvements to the documentation of the prologue alternatives:
6752	* NEWS (2.3a+): Mention the new `Prologue Alternatives' section in the
6753	Bison manual.
6754	* doc/bison.texinfo (Prologue Alternatives): Correct some errors.  Add
6755	some text to clarify the relative importance of the new directives and
6756	to show how these directives may be viewed as code labels.
6757
67582006-10-16  Joel E. Denny  <jdenny@ces.clemson.edu>
6759
6760	Similar to the recently removed %before-header, add %code-top as the
6761	alternative to the pre-prologue.  Mentioned at
6762	<http://lists.gnu.org/archive/html/bison-patches/2006-10/msg00063.html>.
6763	Also, let the prologue alternatives appear in the grammar section.
6764	* src/parse-gram.y (PERCENT_CODE_TOP): New token.
6765	(prologue_declaration): Move the existing prologue alternatives to...
6766	(grammar_declaration): ... here and add %code-top.
6767	* src/scan-gram.l (PERCENT_CODE_TOP): New token.
6768
6769	Clean up and extend documentation for the prologue alternatives.
6770	* NEWS (2.3a+): Describe prologue alternatives.
6771	* doc/bison.texinfo (Prologue): Move discussion of prologue
6772	alternatives to...
6773	(Prologue Alternatives): ... this new section, and extend it to discuss
6774	all 4 directives in detail.
6775	(Table of Symbols): Clean up discussion of prologue alternatives and
6776	add %code-top.
6777
67782006-10-16  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
6779
6780	DJGPP specific issues.
6781
6782	* djgpp/config.bat: config.hin has been moved to lib. Adjust
6783	config.bat accordingly.
6784	* djgpp/config.sed: Adjust config.sed for the use of autoconf 2.60.
6785	* djgpp/config.site: Likewise.
6786
67872006-10-16  Paolo Bonzini  <bonzini@gnu.org>
6788
6789	Replace %*-header with %provides, %requires, %code.  See discussion at
6790	http://lists.gnu.org/archive/html/bison-patches/2006-10/msg00002.html
6791
6792	* data/bison.m4 (b4_user_requires, b4_user_provides): New.
6793	(b4_user_start_header): Remove.
6794	* data/glr.c: Use new macros instead of b4_*start_header
6795	and b4_*end_header.
6796	* data/glr.cc: Likewise.
6797	* data/lalr1.cc: Likewise.
6798	* data/push.c: Likewise.
6799	* data/yacc.c: Likewise.
6800
6801	* doc/bison.texinfo: Remove %before-header, rename
6802	%{start,end,after}-header to %requires, %provides, %code.
6803
6804	* src/parse-gram.y: Likewise (also rename token names accordingly).
6805	* src/scan-gram.l: Likewise.
6806	* tests/actions.at: Likewise.
6807
68082006-10-14  Paul Eggert  <eggert@cs.ucla.edu>
6809
6810	* lib/Makefile.am (AM_CFLAGS): Remove $(WERROR_CFLAGS).
6811	Problem reported by Joel E. Denny.
6812
68132006-10-14  Jim Meyering  <jim@meyering.net>
6814
6815	(Sync from coreutils.)
6816	Work also when the working directory (with e.g. coreutils sources)
6817	is version controlled with git, rather than CVS.
6818	* bootstrap (CVS_only_file): Test for the existence of README-cvs,
6819	rather than CVS.
6820	In messages and comments, say e.g., "checked-out sources",
6821	rather than "CVS sources".
6822	(version_controlled_file): New function.  Work for git as well as
6823	for CVS.  Don't use grep's -q option.
6824	(slurp): Call it here, in place of CVS-specific code.
6825
68262006-10-14  Joel E. Denny  <jdenny@ces.clemson.edu>
6827
6828	Fix testsuite for ./configure --enable-gcc-warnings:
6829	* configure.ac (gcc-warnings): Move -Wall before -Wno-sign-compare.
6830	Otherwise, gcc 4.1.0 (at least) warns about sign comparisons in
6831	__AT_CHECK_PRINTER_AND_DESTRUCTOR in tests/actions.at.
6832	* test/input.at (Torturing the Scanner): #include <stdlib.h> for abort.
6833	* test/regression.at (Diagnostic that expects two alternatives):
6834	Likewise.
6835
68362006-10-12  Paul Eggert  <eggert@cs.ucla.edu>
6837
6838	* bootstrap.conf (gnulib_modules): Add config-h.
6839	* djgpp/subpipe.c: Include <config.h> unconditionally; don't
6840	worry about HAVE_CONFIG_H.
6841	* lib/abitset.c: Likewise.
6842	* lib/bitset.c: Likewise.
6843	* lib/bitset_stats.c: Likewise.
6844	* lib/bitsetv-print.c: Likewise.
6845	* lib/bitsetv.c: Likewise.
6846	* lib/ebitset.c: Likewise.
6847	* lib/get-errno.c: Likewise.
6848	* lib/lbitset.c: Likewise.
6849	* lib/subpipe.c: Likewise.
6850	* lib/timevar.c: Likewise.
6851	* lib/vbitset.c: Likewise.
6852	* lib/bitset.c: Include "bitset.h" first, to test interface.
6853	* lib/bitset_stats.c: Include "bitset_stats.h" first.
6854	* lib/bitsetv-print.c: Include "bitsetv-print.h" first.
6855	* lib/bitsetv.c: Include "bitsetv.h" first.
6856	* lib/get-errno.c: Include "get-errno.h" first.
6857	* m4/.cvsignore: Add config-h.m4.
6858	* tests/actions.at (Default %printer and %destructor for ...):
6859	Adjust expected line numbers in output to reflect removal of #if
6860	HAVE_CONFIG_H lines.
6861	* tests/glr-regression.at (Missed %merge type warnings when ...):
6862	Likewise.
6863	* tests/regression.at (Braced code in declaration in rules section):
6864	Likewise.
6865	* tests/atlocal.in (CPPFLAGS): Don't define HAVE_CONFIG_H.
6866	* tests/local.at (AT_DATA_GRAMMAR_PROLOGUE):
6867	Include <config.h> unconditionally.
6868
6869	* bootstrap: Sync from coreutils, as follows:
6870
6871	2006-10-11  Paul Eggert  <eggert@cs.ucla.edu>
6872
6873	* bootstrap (symlink_to_gnulib): Fix bug: the dot_dots shell
6874	variable was sometimes used without being initialized.  This
6875	messed up the installation of the INSTALL file in some cases.
6876
6877	2006-10-09  Paul Eggert  <eggert@cs.ucla.edu>
6878
6879	* bootstrap (usage, main program, symlink_to_gnulib): Add option
6880	--copy.  Inspired by a suggestion from Bruno Haible.
6881
6882	2006-10-03  Jim Meyering  <jim@meyering.net>
6883
6884	* bootstrap: Undo last change to this file, since now gnulib-tool
6885	sticks with the automake default in generating dependencies.
6886
68872006-10-12  Paul Eggert  <eggert@cs.ucla.edu>
6888
6889	* configure.ac: Use AC_PROG_CC_STDC; this is more modern than
6890	the old AC_PROG_CC / AM_PROG_CC_STDC combination.
6891
6892	* doc/bison.1: Add copyright notice.
6893
6894	* data/glr.c: Don't include <stdarg.h>; not used.
6895
6896	* NEWS: The -g and --graph options now output graphs in Graphviz
6897	DOT format, not VCG format.
6898	* doc/bison.1: Likewise.
6899	* doc/bison.texinfo (Understanding, Bison Options): Likewise.
6900	* THANKS: Add Satya Kiran Popuri, who proposed the initial version
6901	of this change in
6902	<http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00158.html>.
6903	* TODO: Remove Graphviz entry.
6904	* src/Makefile.am (bison_SOURCES): Add graphviz.c and graphviz.h;
6905	remove vcg.c, vcg.h, vcg_defaults.h.
6906	* src/vcg.c, src/vcg.h, src/vcg_defaults.h: Remove.
6907	* src/graphviz.c, src/graphviz.h: New files.
6908	* src/files.c (compute_output_file_names): Output .dot, not .vcg.
6909	* src/files.h: Make comment more generic.
6910	* src/main.c (main): Likewise.
6911	* src/print_graph.h: Likewise.
6912	* src/getargs.c (usage): Make usage description more generic.
6913	* src/print_graph.c: Include graphviz.h rather than vcg.h.
6914	(static_graph, fgraph): Remove.  All uses changed to pass
6915	arguments instead of sharing a static var.
6916	(print_core, print_actions, print_state, print_graph):
6917	Output graphviz format rather than VCG format.
6918	* tests/.cvsignore: Remove *.vcg; add *.dot.
6919	* tests/output.at: Expect *.dot files, not *.vcg files.
6920
6921	* data/Makefile.am (dist_pkgdata_DATA): Add bison.m4; this
6922	accommodates the 2006-10-08 change.
6923
69242006-10-11  Bob Rossi  <bob@brasko.net>
6925
6926	* data/push.c (yypushparse, yypvarsinit, yypvars): Wrap in b4_push_if.
6927	(b4_yyssa, b4_yyerror_range): New macros.
6928	(struct yypvars): Remove yyssa_ptr and yyerror_range_ptr fields.
6929	(yypvarsinit): Remove init of removed fields.
6930	(yypushparse): Remove use of removed fields; use new macros instead.
6931
69322006-10-11  Paul Eggert  <eggert@cs.ucla.edu>
6933
6934	* data/push.c (yypushparse): Fix memory leak if yymsg is malloced
6935	in a push parser.  Reindent slightly to match yacc.c better.
6936
69372006-10-11  Bob Rossi  <bob@brasko.net>
6938
6939	* data/push.c (struct yypvars): Remove yymsgbuf, yymsgbuf_ptr, yymsg,
6940	yymsg_alloc fields.
6941	(yypvarsinit, yypushparse): Remove init of removed fields.
6942	(yypushparse): Use yymsgbuf instead of yymsgbuf_ptr.
6943
69442006-10-09  Paul Eggert  <eggert@cs.ucla.edu>
6945
6946	* THANKS: Add Paolo Bonzini and Bob Rossi.
6947
69482006-10-08  Paolo Bonzini  <bonzini@gnu.org>
6949
6950	* data/c.m4 (b4_copyright, b4_epilogue, b4_location_initial_column,
6951	b4_location_initial_line, p4_parse_param, b4_ints_in, b4_flag_if,
6952	b4_define_flag_if and uses, b4_basename, b4_syncline, b4_user_code,
6953	b4_define_user_cde and uses): Remove.
6954	(b4_comment, b4_prefix, b4_sync_start): New.
6955	* data/bison.m4: New file, with most of the content removed from c.m4.
6956	* src/muscle_tab.h: Use "do {...} while(0)" throughout.
6957	* src/output.c (output_skeleton): Pass bison.m4.
6958	(prepare): Pass glr_flag and nondeterministic_flag.  Pass prefix
6959	only if specified.
6960
69612006-10-05  Paul Eggert  <eggert@cs.ucla.edu>
6962
6963	Fix test failure reported by Tom Lane in
6964	<http://lists.gnu.org/archive/html/bug-bison/2006-10/msg00000.html>
6965	and try to make such failures easier to catch in the future.
6966	* data/glr.c (YYTRANSLATE): Don't check for nonpositive arg;
6967	that's now the caller's responsibility.
6968	(yyprocessOneStack, yyrecoverSyntaxError, yyparse):
6969	Set yychar = YYEOF if it's negative.
6970	* tests/actions.at (yylex): Abort if asked to read past EOF.
6971	* tests/conflicts.at (yylex): Likewise.
6972	* tests/cxx-type.at (yylex): Likewise.
6973	* tests/glr-regression.at (yylex): Likewise.
6974	* tests/input.at (yylex): Likewise.
6975	* tests/regression.at (yylex): Likewise.
6976	* tests/torture.at (yylex): Likewise.
6977
69782006-10-01  Paul Eggert  <eggert@cs.ucla.edu>
6979
6980	Fix problems with translating English-language diagnostics.
6981	* bootstrap: Fix bug introduced in recent bootstrap changes, with
6982	respect to bison-runtime pot generation.  The YY_ stuff
6983	wasn't being captured.
6984	* bootstrap.conf (XGETTEXT_OPTIONS_RUNTIME): New var.
6985	* po/POTFILES.in: Add src/location.c, src/scan-code.l.
6986	* runtime-po/POTFILES.in: Add data/push.c.
6987
69882006-09-29  Paul Eggert  <eggert@cs.ucla.edu>
6989
6990	Merge bootstrap changes from coreutils.
6991
6992	2006-09-28  Jim Meyering  <jim@meyering.net>
6993
6994	Automatically generated dependencies are important even
6995	when all of the sources in a directory come from gnulib.
6996	* bootstrap (gnulib_tool): Remove the "no-dependencies" automake
6997	option that gnulib-tool adds to what becomes our lib/gnulib.mk.
6998
6999	2006-09-23  Jim Meyering  <jim@meyering.net>
7000
7001	* bootstrap (gnulib_tool_options): Add "--local-dir gl".
7002
7003	2006-09-20  Paul Eggert  <eggert@cs.ucla.edu>
7004
7005	* bootstrap: Add support for --force.
7006	(usage): New function.  Describe usage less tersely.
7007	(CVS_only_file): New var.
7008
70092006-09-21  Paul Eggert  <eggert@cs.ucla.edu>
7010
7011	* data/push.c (YYPUSH_MORE): Make it an enum instead.
7012	(yypushparse): Use YYPUSH_MORE instead of the mystery constant.
7013	Adjust white space and comments to match GNU style better.
7014
70152006-09-20  Bob Rossi  <bob@brasko.net>
7016
7017	* data/push.c (yyresult_get): Remove function.
7018	(YYPUSH_MORE): Add #define.
7019	(yypushparse): Modify return value.
7020
70212006-09-20  Paul Eggert  <eggert@cs.ucla.edu>
7022
7023	* stamp-h.in: Remove; no longer needed.
7024	* .cvsignore: Replace autom4te.cache and config.cache with *.cache.
7025	Remove config.h, config.hin, intl (no longer created).
7026	* lib/.cvsignore: Add config.h, config.hin, configmake.h, inttypes.h,
7027	stamp-h1.
7028
7029	Sync bootstrap from coreutils, as follows:
7030
7031	2006-09-18  Paul Eggert  <eggert@cs.ucla.edu>
7032
7033	* bootstrap (symlink_to_gnulib): New function.
7034	(cp_mark_as_generated): Use it, to prefer symlinks-to-gnulib
7035	to copies-of-gnulib.
7036	(cp_mark_as_generated, slurp, gnulib_files):
7037	Avoid making a copy if it's the same as the old version.
7038	(gnulib_files): Add support for this variable (used by Bison).
7039
70402006-09-20  Paul Eggert  <eggert@cs.ucla.edu>
7041
7042	* src/getargs.c (usage): Rework to use conventions similar to
7043	coreutils, to make translation a bit easier and the code a bit
7044	smaller.  Problem reported by Tim Van Holder.
7045
70462006-09-15  Paul Eggert  <eggert@cs.ucla.edu>
7047
7048	Use some of gnulib's new modules, taken from coreutils.
7049
7050	* bootstrap: Sync from coreutils, except add support for gnulib_files.
7051	* bootstrap.conf: New file.
7052	(gnulib_modules): Add configmake, inttypes, unistd.
7053	(XGETTEXT_OPTIONS): Add complain, complain_at,
7054	fatal, fatal_at, warn, warn_at, unexpected_end.
7055	* configure.ac (AC_CONFIG_HEADERS): config.h is now in lib, not here.
7056	(gl_USE_SYSTEM_EXTENSIONS): Remove; gl_EARLY now does this.
7057	(gl_EARLY): Add.
7058	(AM_STDBOOL_H): Remove; gl_INIT now dows this.
7059	(gl_INIT): Add
7060	(GNULIB_AUTOCONF_SNIPPET): Remove.
7061	(AM_GNU_GETTEXT): Add; require formatstring macros since that's
7062	the pickiest.
7063	* lib/.cvsignore: Add inttypes_.h.
7064	* lib/Makefile.am: Include gnulib.mk first so we can append to it.
7065	(AM_CFLAGS): Add WERROR_CFLAGS, to be more like coreutils.
7066	(BUILT_SOURCES, EXTRA_DIST, MOSTLYCLEANFILES): Remove
7067	no-longer-necessary initializations.
7068	(lib_SOURCES): Remove, replacing by libbison_a_SOURCES.
7069	* lib/subpipe.c: Include <unistd.h> unconditionally, now that we
7070	use the unistd module.
7071	* src/system.h: Likewise.
7072	* m4/.cvsignore: Remove *_gl.m4, gnulib.m4, inttypes_h.m4, uintmax_t.m4,
7073	ulonglong.m4.  Add gettext.m4, gnulib-cache.m4, gnulib-comp.m4,
7074	gnulib-tool.m4, inttypes-h.m4, inttypes-pri.m4, inttypes.m4.
7075	* src/Makefile.am (DEFS): Remove, since configmake does this for us.
7076	(AM_CPPFLAGS): Remove -I../lib, since Automake does that for us.
7077	* src/system.h: Include inttypes.h unconditionally, now that we
7078	use the inttypes module.  Don't bother to include stdint.h, since
7079	inttypes.h now does that for us.
7080	(LOCALEDIR): Remove, now that we use the configmake module.
7081	* src/getargs.c: Include configmake.h.
7082	* src/main.c: Likewise.
7083	* src/output.c: Likewise.
7084	* tests/atlocal.in (CPPFLAGS): Include from $abs_top_builddir/lib,
7085	not from $abs_top_builddir, since config.h moved.
7086
7087
7088	Port to GCC 2.95.  First two problems reported by Michael Deutschmann in
7089	<http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00018.html>.
7090
7091	* src/parse-gram.y (symbol_declaration): Don't put statements
7092	before declarations; it's not portable to C89.
7093	* src/scan-code.l (handle_action_at): Likewise.
7094
7095	* src/scan-code.l: Always initialize braces_level; the old code
7096	left it uninitialized and therefore had undefined behavior.
7097
7098	Don't attempt to redefine 'assert', since it runs afoul of
7099	systems where standard headers (mistakenly) include <assert.h>.
7100	Instead, define and use our own alternative, called 'aver'.
7101	* src/reader.c: Don't include assert.h, since we no longer
7102	use assert.
7103	* src/scan-code.l: Likewise.
7104	* src/system.h (assert): Remove, replacing with....
7105	(aver): New function, taking a bool arg.  All uses changed.
7106	* src/tables.c (pack_vector): Ensure that aver arg is bool,
7107	not merely an integer.
7108
71092006-09-15  Bob Rossi  <bob@brasko.net>
7110
7111	Add support for push parsing.  Based on the original work of
7112	Odd Arild Olsen <oao@fibula.no>.
7113	* data/Makefile.am (dist_pkgdata_DATA): Add push.c.
7114	* data/c.m4 (YYPUSH): New.
7115	(b4_push_if): New macro.  Use it instead of #ifdef YYPUSH.
7116	* data/push.c: New file.
7117	* src/getargs.c (push_parser): New var.
7118	* src/getargs.h (push_parser): New declaration.
7119	* src/output.c (prepare): Add macro insertion of `push_flag'.
7120	* src/parse-gram.y (PERCENT_PUSH_PARSER): New token.
7121	(prologue_declaration): Parse %push-parser.
7122	* src/scan-gram.l: Scan new PERCENT_PUSH_PARSER token.
7123	* tests/calc.at (_AT_CHECK_CALC_ERROR): Add "Return" and "Now" to
7124	list of removed lines from the traces observed.
7125	(AT_CHECK_CALC_LALR): Added push parser tests.
7126
71272006-09-13  Paul Eggert  <eggert@cs.ucla.edu>
7128
7129	* NEWS: Version 2.3a.
7130	* configure.ac (AC_INIT): Likewise.
7131
7132	* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Remove
7133	"#define YYSTYPE int" that caused "make maintainer-check" to fail
7134	due to header ordering dependencies.  I don't know why the #define
7135	was there.
7136
7137	Fix glr.cc and lalr1.cc's use of YYDEBUG so that there's zero
7138	runtime cost when YYDEBUG is not defined, and so that some tests
7139	that used to fail now work.  Problem and initial suggestion by
7140	Paolo Bonzini.
7141	* data/c++.m4 (b4_parse_param_cons): Omit leading ','.
7142	* data/glr.cc (b4_parser_class_name):
7143	Initialize yycdebug_ only if YYDEBUG.  Also, initialize yydebug_.
7144	(debug_level, set_debug_level): Affect yydebug_, not ::yydebug.
7145	(yydebug_) [YYDEBUG]: New member.
7146	(yycdebug_): Now defined only if YYDEBUG.
7147	* data/lalr1.cc (yydebug_, yycdebug_): Now defined only if YYDEBUG.
7148	(YYCDEBUG) [!YYDEBUG]: Don't use yydebug_ and yycdebug_.
7149	(b4_parser_class_name): Initialize yydebug_ and yycdebug_ only
7150	if YYYDEBUG.
7151	(debug_stream, set_debug_stream, debug_level, set_debug_level):
7152	Define only if YYDEBUG.
7153	* tests/calc.at (_AT_DATA_CALC_Y) [!YYDEBUG]: Omit call to
7154	set_debug_level.
7155	* tests/regression.at (_AT_DATA_DANCER_Y) [!YYDEBUG]: Likewise.
7156	* tests/calc.at (AT_CHECK_CALC_GLR_CC): Uncomment calls to
7157	AT_CHECK_CALC_GLR_CC that are working now.
7158
71592006-09-12  Paul Eggert  <eggert@cs.ucla.edu>
7160
7161	* data/glr.cc (YYERROR_VERBOSE, YYTOKEN_TABLE): Remove.
7162	We don't need them in glr.cc, and glr.c defines them.
7163	Defining YYERROR_VERBOSE to 0 here breaks glr.c, since glr.c
7164	assumes that defining it to anything is the same as defining
7165	it to 1.  Problem reported by Paolo Bonzini.
7166
71672006-09-12  Paolo Bonzini  <bonzini@gnu.org>  (tiny change)
7168
7169	* data/c.m4 (b4_null, b4_case): Define.
7170	* src/output.c (prepare_symbols): Use b4_null.
7171	(user_actions_output): Use b4_case.
7172
71732006-09-11  Paul Eggert  <eggert@cs.ucla.edu>
7174
7175	* data/glr.c (b4_shared_declarations): Put start-header first,
7176	before any #includes that we generate, so that feature-test
7177	macros work.  Problem reported by Michael Deutschmann in
7178	<http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00004.html>.
7179	* data/lalr1.cc: Likewise.
7180	* doc/bison.texinfo (Prologue): Document that feature-test macros
7181	should be defined before any Bison declarations.
7182	* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Put defns
7183	that depend on location.hh after, not before, Bison decls, since
7184	we now include location.hh after the first user prologue.
7185
7186	* doc/bison.texinfo (Calc++ Parser): Fix memory leak reported by
7187	Sander Brandenburg in
7188	<http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00002.html>.
7189	Also, fix minor white space and comment issues.
7190	(Prologue): Mention that it's better to define feature-test macros
7191	before Bison declarations.  Problem reported by Michael Deutschmann.
7192
7193	* README-cvs: Fix typo: "&" should be "&&".  Problem reported
7194	by Jim Meyering.
7195	* m4/.cvsignore: Add argmatch.m4.  Remove obstack.m4, strerror_r.m4.
7196	This adjusts to recent gnulib changes.
7197
71982006-09-04  Joel E. Denny  <jdenny@ces.clemson.edu>
7199
7200	Finish implementation of per-type %destructor/%printer.  Discussed
7201	starting at
7202	<http://lists.gnu.org/archive/html/bison-patches/2006-02/msg00064.html>
7203	and
7204	<http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00091.html>.
7205	* NEWS (2.3+): Add a description of this feature to the default
7206	%destructor/%printer description.
7207	* doc/bison.texinfo (Freeing Discarded Symbols): Likewise.
7208	* src/symlist.c (symbol_list_destructor_set, symbol_list_printer_set):
7209	Invoke semantic_type_destructor_set or semantic_type_printer_set when a
7210	list node contains a semantic type.
7211	* src/symtab.c, src/symtab.h: Extend with a table that associates
7212	semantic types with their %destructor's and %printer's.
7213	(semantic_type_from_uniqstr, semantic_type_get,
7214	semantic_type_destructor_set, semantic_type_printer_set): New functions
7215	composing the public interface of that table.
7216	(symbol_destructor_get, symbol_destructor_location_get,
7217	symbol_printer_get, symbol_printer_location_get):  If there's no
7218	per-symbol %destructor/%printer, look up the per-type before trying
7219	the default.
7220	* tests/actions.at (Per-type %printer and %destructor): New test case.
7221	* tests/input.at (Default %printer and %destructor redeclared):
7222	Extend to check that multiple occurrences of %symbol-default in a
7223	single %destructor/%printer declaration is an error.
7224	(Per-type %printer and %destructor redeclared, Unused values with
7225	per-type %destructor): New test cases.
7226
72272006-09-04  Joel E. Denny  <jdenny@ces.clemson.edu>
7228
7229	Require default %destructor/%printer to be declared using
7230	%symbol-default instead of an empty symbol list, and start working on
7231	new per-type %destructor/%printer.  Discussed at
7232	<http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00007.html>.
7233	* NEWS (2.3+): Add %symbol-default to example.
7234	* bison.texinfo (Freeing Discarded Symbols): Likewise.
7235	(Table of Symbols): Add entry for %symbol-default.
7236	* src/parse-gram.y (PERCENT_SYMBOL_DEFAULT): New token.
7237	(generic_symlist, generic_symlist_item): New nonterminals for creating
7238	a list in which each item is a symbol, semantic type, or
7239	%symbol-default.
7240	(grammar_declaration): Use generic_symlist in %destructor and %printer
7241	declarations instead of symbols.1 or an empty list.
7242	(symbol_declaration, precedence_declaration, symbols.1): Update actions
7243	for changes to symbol_list.
7244	* src/reader.c: Update for changes to symbol_list.
7245	* src/scan-code.l: Likewise.
7246	* src/scan-gram.l: Scan new PERCENT_SYMBOL_DEFAULT token.
7247	* src/symlist.c, src/symlist.h: Extend such that a list node may
7248	represent a semantic type or a %symbol-default in addition to just an
7249	ordinary symbol.  Add switched functions for setting %destructor's and
7250	%printer's.
7251	* tests/actions.at, tests/input.at: Add %symbol-default to all default
7252	%destructor/%printer declarations.
7253
72542006-08-23  Joel E. Denny  <jdenny@ces.clemson.edu>
7255
7256	Whether the default %destructor/%printer applies to a particular symbol
7257	isn't a question of whether the user *declares* that symbol (in %token,
7258	for example).  It's a question of whether the user by any means
7259	*defines* the symbol at all (by simply using a char token, for
7260	example).  $end is defined by Bison whereas any other token with token
7261	number 0 is defined by the user.  The error token is always defined by
7262	Bison regardless of whether the user declares it with %token, but we
7263	may one day let the user define error as a nonterminal instead.
7264	* NEWS (2.3+): Say "user-defined" instead of "user-declared".
7265	* doc/bison.texinfo (Freeing Discarded Symbols): Likewise, and document
7266	the meaning of "user-defined".
7267	* tests/actions.at (Default %printer and %destructor for user-declared
7268	end token): Rename to...
7269	(Default %printer and %destructor for user-defined end token): ...
7270	this.
7271
7272	* src/symtab.c (symbol_destructor_get, symbol_printer_get): In the
7273	computation of whether to apply the default, don't maintain a list of
7274	every Bison-defined symbol.  Instead, just check for a first character
7275	of '$', which a user symbol cannot have, and check for the error token.
7276
72772006-08-21  Joel E. Denny  <jdenny@ces.clemson.edu>
7278
7279	Don't apply the default %destructor or %printer to the error token,
7280	$undefined, or $accept.  This change fits the general rule that the
7281	default %destructor and %printer are only for user-declared symbols,
7282	and it solves several difficulties that are described in the new test
7283	cases listed below.
7284	* src/symtab.c (symbol_destructor_get, symbol_printer_get): Implement.
7285	* tests/actions.at (Default %printer and %destructor are not for error
7286	or $undefined, Default %printer and %destructor are not for $accept):
7287	New test cases.
7288
72892006-08-19  Joel E. Denny  <jdenny@ces.clemson.edu>
7290
7291	Allow %start after the first rule.
7292	* src/reader.c (grammar_current_rule_begin): Don't set the start symbol
7293	when parsing the first rule.
7294	(check_and_convert_grammar): Search for it here after all grammar
7295	declarations have been parsed.  Skip midrules, which have dummy LHS
7296	nonterminals.
7297	* src/symtab.c (symbol_is_dummy): New function.
7298	* src/symtab.h (symbol_is_dummy): Declare it.
7299	* tests/input.at (%start after first rule): New test.
7300
73012006-08-18  Joel E. Denny  <jdenny@ces.clemson.edu>
7302
7303	Redo some of the previous commit: add back the ability to use
7304	non-aliased/undeclared string literals since it might be useful to
7305	those declaring %token-table.
7306	* src/reader.c (check_and_convert_grammar): Undo changes in previous
7307	commit: don't worry about complaints from symbols_pack.
7308	* src/symtab.c (symbol_new, symbol_class_set,
7309	symbol_check_alias_consistency): Undo changes in previous commit: count
7310	each string literal as a new symbol and token, assign it a symbol
7311	number, and don't complain about non-aliased string literals.
7312	(symbols_pack): Since symbol_make_alias still does not decrement symbol
7313	and token counts but does still set aliased tokens to the same number,
7314	symbol_pack_processor now leaves empty slots in the symbols array.
7315	Remove those slots.
7316	* tests/regression.at (Undeclared string literal): Remove test case
7317	added in previous commit since non-aliased string literals are allowed
7318	again.
7319	(Characters Escapes, Web2c Actions): Undo changes in previous commit:
7320	remove unnecessary string literal declarations.
7321	* tests/sets.at (Firsts): Likewise.
7322
73232006-08-18  Joel E. Denny  <jdenny@ces.clemson.edu>
7324
7325	Don't allow an undeclared string literal, but allow a string literal to
7326	be used before its declaration.
7327	* src/reader.c (check_and_convert_grammar): Don't invoke packgram if
7328	symbols_pack complained.
7329	* src/symtab.c (symbol_new): Don't count a string literal as a new
7330	symbol.
7331	(symbol_class_set): Don't count a string literal as a new token, and
7332	don't assign it a symbol number since symbol_make_alias does that.
7333	(symbol_make_alias): It's not necessary to decrement the symbol and
7334	token counts anymore.  Don't assume that an alias declaration occurs
7335	before any uses of the identifier or string, and thus don't assert that
7336	one of them has the highest symbol number so far.
7337	(symbol_check_alias_consistency): Complain if there's a string literal
7338	that wasn't declared as an alias.
7339	(symbols_pack): Bail if symbol_check_alias_consistency failed since
7340	symbol_pack asserts that every token has been assigned a symbol number
7341	although undeclared string literals have not.
7342	* tests/regression.at (String alias declared after use, Undeclared
7343	string literal): New test cases.
7344	(Characters Escapes, Web2c Actions): Declare string literals as
7345	aliases.
7346	* tests/sets.at (Firsts): Likewise.
7347
73482006-08-14  Joel E. Denny  <jdenny@ces.clemson.edu>
7349
7350	In the grammar scanner, STRING_FINISH unclosed constructs and return
7351	them to the parser in order to improve error messages.
7352	* src/scan-gram.l (SC_ESCAPED_STRING, SC_ESCAPED_CHARACTER,
7353	SC_BRACED_CODE, SC_PROLOGUE): Implement.
7354	* tests/input.at (Unclosed constructs): New test case.
7355	* tests/regression.at (Invalid inputs): Update now that unclosed %{ is
7356	seen.
7357
7358	* src/scan-gram.h, src/scan-gram.l (gram_last_braced_code_loc): Remove
7359	unused global.
7360
73612006-08-13  Joel E. Denny  <jdenny@ces.clemson.edu>
7362
7363	Handle string aliases for character tokens correctly.
7364	* src/symtab.c (symbol_user_token_number_set): If the token has an
7365	alias, check and set its alias's user token number instead of its own,
7366	which is set to indicate the alias.  Previously, every occurrence of
7367	the character token in the grammar overwrote that alias indicator with
7368	the character code.
7369	* tests/input.at (String aliases for character tokens): New test.
7370
73712006-08-12  Joel E. Denny  <jdenny@ces.clemson.edu>
7372
7373	* src/parse-gram.y: Add `%expect 0' so we don't overlook conflicts.
7374
73752006-08-11  Paul Eggert  <eggert@cs.ucla.edu>
7376
7377	* bootstrap: Put in need-ngettext argument to AM_GNU_GETTEXT,
7378	to prevent failures when building on older platforms.
7379	Check for autopoint failure.
7380	Set XGETTEXT_OPTIONS to values that check for C format strings,
7381	so that translators are warned about them (this also helps
7382	prevent core dumps).
7383
7384	* lib/subpipe.c (create_subpipe): Use new gnulib pipe_safer
7385	function, since it simplifies our code a bit.
7386
7387	* configure.ac (AC_ARG_ENABLE): Use -Wextra -Wno-sign-compare
7388	rather than -W, so we don't get bogus warnings about sign comparisons.
7389	Add -Wpointer-arith, since that warning is useful (it reports code
7390	that does not conform to C89 and that some compilers reject).
7391	* data/c.m4, data/glr.c, data/lalr1.cc, data/yacc.c: Undo latest change,
7392	since it's no longer needed.
7393
73942006-08-10  Joel E. Denny  <jdenny@ces.clemson.edu>
7395
7396	Clean up scanners a bit.
7397	* src/flex-scanner.h (FLEX_NO_OBSTACK): New macro that blocks obstack
7398	definitions so gcc won't warn when obstack_for_string is unused.
7399	* src/scan-code.l: config.h and system.h are already #include'd by
7400	scan-code-c.c, so get rid of them here.
7401	* src/scan-gram.l: Likewise.
7402	* src/scan-skel.l: Likewise, and use flex-scanner.h without obstack
7403	definitions rather than duplicating the rest of it.
7404	* src/scan-gram-c.c, scan-skel-c.c: #include "system.h".
7405
74062006-08-09  Joel E. Denny  <jdenny@ces.clemson.edu>
7407
7408	Suppress signed/unsigned comparison warnings for yycheck.
7409	* data/c.m4 (b4_safest_int_type): New macro.
7410	* data/glr.c, data/lalr1.cc: Wherever you compare yycheck[i] against
7411	a signed int type, cast it to b4_safest_int_type first.
7412	* data/yacc.c: Likewise.
7413	(b4_safest_int_type): Overwrite the one from c.m4 since b4_int_type is
7414	also overwritten.
7415
74162006-08-09  Ralf Wildenhues <Ralf.Wildenhues@gmx.de>  (tiny change)
7417
7418	* doc/bison.texinfo: Fix some typos.
7419
74202006-08-02  Paul Eggert  <eggert@cs.ucla.edu>
7421
7422	* m4/.cvsignore: Add inttypes_h.m4,lib-ld.m4, lib-prefix.m4,
7423	po.m4, stdint_h.m4, uintmax_t.m4, ulonglong.m4, warning.m4.
7424
7425	* bootstrap (gnulib_tool): Stop using --assume-autoconf;
7426	the latest gnulib does this a different way.
7427	(get_translations): Sharuzzaman Ahmat Raslan reported that the ms
7428	translation was patched, so stop omitting it.
7429
74302006-07-29  Joel E. Denny  <jdenny@ces.clemson.edu>
7431
7432	Enable declaration of default %printer/%destructor.  Make the parser
7433	use these for all user-declared grammar symbols for which the user does
7434	not declare a specific %printer/%destructor.  Thus, the parser uses it
7435	for token 0 if the user declares it but not if Bison generates it as
7436	$end.  Discussed starting at
7437	<http://lists.gnu.org/archive/html/bison-patches/2006-02/msg00064.html>,
7438	<http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00091.html>,
7439	and
7440	<http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00019.html>.
7441	* NEWS (2.3+): Mention.
7442	* doc/bison.texinfo (Actions in Mid-Rule): It's no longer impossible to
7443	declare a %destructor for a mid-rule's semantic value.  It's just
7444	impossible to declare one specific to it.
7445	(Freeing Discarded Symbols): Mention that @$ can be used in %destructor
7446	code.  Describe default %destructor form.
7447	* src/parse-gram.y (grammar_declaration): Parse default
7448	%printer/%destructor declarations.
7449	* src/output.c (symbol_destructors_output): Use symbol_destructor_get
7450	and symbol_destructor_location_get rather than accessing the destructor
7451	and destructor_location members of struct symbol.
7452	(symbol_printers_output): Likewise but for %printer's.
7453	* src/reader.c (symbol_should_be_used): Likewise but for %destructor's
7454	again.
7455	* src/symtab.c (default_destructor, default_destructor_location,
7456	default_printer, default_printer_location): New static global
7457	variables to record the default %destructor and %printer.
7458	(symbol_destructor_get, symbol_destructor_location_get,
7459	symbol_printer_get, symbol_printer_location_get): New functions to
7460	compute the appropriate %destructor and %printer for a symbol.
7461	(default_destructor_set, default_printer_set): New functions to set the
7462	default %destructor and %printer.
7463	* src/symtab.h: Prototype all those new functions.
7464	* tests/actions.at (Default %printer and %destructor): New test to
7465	check that the right %printer and %destructor are called, that they're
7466	not called for $end, and that $$ and @$ work correctly.
7467	(Default %printer and %destructor for user-declared end token): New
7468	test to check that the default %printer and %destructor are called for
7469	a user-declared end token.
7470	* tests/input.at (Default %printer and %destructor redeclared, Unused
7471	values with default %destructor): New tests to check related grammar
7472	warnings and errors.
7473
74742006-07-29  Joel E. Denny  <jdenny@ces.clemson.edu>
7475
7476	Clean up handling of %destructor for the end token (token 0).
7477	Discussed starting at
7478	<http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00019.html>
7479	and
7480	<http://lists.gnu.org/archive/html/help-bison/2006-07/msg00013.html>.
7481
7482	Make the skeletons consistent in how they pop the end token and invoke
7483	its %destructor.
7484	* data/glr.c (yyrecoverSyntaxError, yyparse): Don't pop the start
7485	state, which has token number 0, since this would invoke the
7486	%destructor for the end token.
7487	* data/lalr1.cc (yy::parser::parse): Don't check for the final state
7488	until after shifting the end token, or else it won't be popped.
7489	* data/yacc.c (yyparse): Likewise.
7490
7491	* data/glr.c (yyparse): Clear the lookahead after shifting it even when
7492	it's the end token.  Upon termination, destroy an unshifted lookahead
7493	even when it's the end token.
7494	* data/lalr1.cc (yy::parser::parse): Likewise.
7495	* data/yacc.c (yyparse): Likewise.
7496
7497	* src/reader.c (packgram): Don't check rule 0.  This suppresses unused
7498	value warnings for the end token when the user gives the end token a
7499	%destructor.
7500
7501	* tests/actions.at (Printers and Destructors): Test all the above.
7502
75032006-07-24  Paul Eggert  <eggert@cs.ucla.edu>
7504
7505	Update to latest gnulib and gettext versions.
7506	* bootstrap (gnulib-modules): Remove hard-locale, stdio-safer.
7507	Add fopen-safer.
7508	(gnulib_files): Add m4/warning.m4.  Don't worry about files
7509	overwritten by autopoint.
7510	Replace gt_INTL_SUBDIR_CORE with an empty body in m4/gettext_gl.m4.
7511	Suppress "id", "ms", "tr" translations for now, since gettext 0.15
7512	rejects them.
7513	Don't use autoreconf; instead, invoke autopoint etc. by hand,
7514	so that we can remove the intl files at a better time.
7515	(intl_files_to_remove): Remove aclocal.m4, since it gets
7516	rebuilt anyway.  Remove m4/inttypes_h.m4, m4/inttypes.m4,
7517	m4/isc-posix.m4, m4/lib-ld.m4, m4/lib-prefix.m4, m4/po.m4,
7518	m4/stdint_h.m4, m4/uintmax_t.m4, m4/ulonglong.m4.
7519	Add m4/inttypes-h.m4, m4/lock.m4, m4/visibility.m4.
7520	Remove datarootdir hack; no longer needed.
7521	* configure.ac: Use gl_WARNING_CFLAGS rather than BISON_WARNING.
7522	(AM_GNU_GETTEXT_VERSION): Bump from 0.12 to 0.15.
7523	* lib/.cvsignore: Remove hard-locale.c, hard-locale.h, strdup.c,
7524	strdup.h.
7525	* m4/.cvsignore: Remove hard-locale.m4, strdup.m4.
7526	* m4/warning.m4: Remove from CVS, since we now use gnulib's version.
7527
75282006-07-20  Paul Eggert  <eggert@cs.ucla.edu>
7529
7530	* bootstrap: Adjust to today's change to gnulib-tool by invoking
7531	it with --assume-autoconf='latest-stable'.
7532
75332006-07-13  Joel E. Denny  <jdenny@ces.clemson.edu>
7534
7535	* src/parse-gram.y (grammar_declaration): Don't confuse Doxygen (at
7536	least 1.4.7 and 1.4.4) by putting a #line between `typedef union
7537	YYSTYPE' and `{'.
7538	* src/muscle_tab.h (muscle_grow): Replace the header comments with
7539	those from muscle_tab.c since the old ones are misleading.
7540
75412006-07-13  Akim Demaille  <akim@epita.fr>
7542
7543	Support %define "KEY" {VALUE}.
7544	* src/scan-code.h, src/scan-code.l (translate_action)
7545	(translate_rule_action, translate_symbol_action, translate_code):
7546	Return char *, not const char *.
7547	* src/parse-gram.y (declaration): Rename as...
7548	(prologue_declaration): this.
7549	(string_content): Remove this nonterminal, use STRING.
7550	(braceless, content, content.opt): New nonterminal.
7551	Use them.
7552	(%define): Now accept content.opt, i.e., accept also BRACED_CODE
7553	as value.
7554	* src/scan-gram.l (getargs.h): Don't include it.
7555
75562006-07-12  Paul Eggert  <eggert@cs.ucla.edu>
7557
7558	* data/lalr1.cc (YYCDEBUG): Use 'if (yydebug_) (*yycdebug_)'
7559	rather than a for-loop that declares a local bool variable.  This
7560	should work around a compatibility problem with a Cray x1e C++
7561	compiler reported by Hung Nguyen in
7562	<http://lists.gnu.org/archive/html/help-bison/2006-07/msg00022.html>.
7563	The for-loop was introduced in the 2004-11-17 change but I don't
7564	know why it was needed.
7565
75662006-07-12  Akim Demaille  <akim@epita.fr>
7567
7568	* data/c.m4: Comment changes.
7569
75702006-07-10  Akim Demaille  <akim@lrde.epita.fr>
7571
7572	* src/complain.c (error_message, ERROR_MESSAGE): New.
7573	To factor...
7574	(fatal_at, fatal, warn_at, warn, complain_at, complain): these.
7575	* src/complain.h, src/complain.c (warning_issued): Remove, unused.
7576
75772006-07-09  Paul Eggert  <eggert@cs.ucla.edu>
7578
7579	* NEWS: Instead of %union, you can define and use your own union type
7580	YYSTYPE if your grammar contains at least one <type> tag.
7581	Your YYSTYPE need not be a macro; it can be a typedef.
7582	* doc/bison.texinfo (Value Type, Multiple Types, Location Type):
7583	(Union Decl, Decl Summary): Document this.
7584	* data/glr.c (YYSTYPE): Implement this.
7585	* data/glr.cc (YYSTYPE): Likewise.
7586	* data/lalr1.cc (YYSTYPE): Likewise.
7587	* data/yacc.c (YYSTYPE): Likewise.
7588	* src/output.c (prepare): Output tag_seen_flag.
7589	* src/parse-gram.y (declaration, grammar_declaration):
7590	Use 'union_seen' rather than 'typed' to determine whether
7591	%union has been seen, since grammars can now be typed without
7592	%union.
7593	(symbol_declaration, type.opt, symbol_def):
7594	Keep track of whether a tag has been seen.
7595	* src/reader.c (union_seen, tag_seen): New vars.
7596	(typed): remove.
7597	* src/reader.h (union_seen, tag_seen, typed): Likewise.
7598	* src/scan-code.l (untyped_var_seen): New variable.
7599	(handle_action_dollar): Adjust to above changes.
7600	(handle_action_dollar, handle_action_at):
7601	Improve overflow checking for outlandish numbers.
7602	* tests/input.at (AT_CHECK_UNUSED_VALUES): Redo test to
7603	avoid new diagnostics generated by above changes.
7604	* tests/regression.at (YYSTYPE typedef): Add test to check
7605	for type tags without %union.
7606
7607	* src/symlist.c (symbol_list_length): Return int, not unsigned
7608	int, since callers expect int.  This may need to get revisited
7609	once we have proper integer overflow checking.
7610
7611	* src/scan-gram.h (gram_scanner_cursor): Remove decl, since this
7612	object is now static.
7613
7614	* src/getargs.c (flags_argmatch): Return void, not int,
7615	to pacify ./configure --enable-gcc-warnings.
7616
7617	* src/flex-scanner.h (STRING_FREE): Don't use FLEX_PREFIX (last_string)
7618	since last_string is already defined to FLEX_PREFIX (last_string).
7619
76202006-07-09  Akim Demaille  <akim@lrde.epita.fr>
7621
7622	Implement --warnings/-W.
7623	* src/getargs.c (report_argmatch, trace_argmatch): Remove,
7624	replaced by...
7625	(flags_argmatch, FLAGS_ARGMATCH): this new function and macro.
7626	Adjust callers.
7627	* src/getargs.h, src/getargs.c (warnings, warnings_flags)
7628	(warnings_args, warnings_types): New.
7629	(getargs, short_options, long_options): Accept -W/--warnings.
7630	Sort the options by alphabetical order, upper case letter right
7631	before its lower case.
7632
76332006-07-09  Joel E. Denny  <jdenny@ces.clemson.edu>
7634
7635	Change %merge result type clash warnings to errors.  Discussed at
7636	<http://lists.gnu.org/archive/html/bison-patches/2006-07/msg00026.html>.
7637	* src/reader.c (record_merge_function_type): Use complain_at.
7638	* tests/glr-regression.at (Missed %merge type warnings when LHS type is
7639	declared later): Update test case results.
7640
76412006-07-09  Akim Demaille  <akim@lrde.epita.fr>
7642
7643	* src/getargs.h, src/getargs.c: Swap --report and --trace handling
7644	to be in alphabetical order.
7645	(trace_args): Spelling fixes.
7646
76472006-07-09  Paul Eggert  <eggert@cs.ucla.edu>
7648
7649	* data/yacc.c (YYID, yy_stack_print): Prefix local vars with "yy"
7650	so they don't collide with user-defined macros.
7651	(yy_stack_print): Don't assume that yytype_int16 promotes to int;
7652	this was never guaranteed, and now that we're using gnulib stdint,
7653	which defines int_fast16_t to long int, the problem is exposed.
7654
76552006-07-08  Paul Eggert  <eggert@cs.ucla.edu>
7656
7657	* data/c.m4 (b4_basename): Simplify a bit, since we don't
7658	need the full POSIX semantics (and weren't implementing them
7659	anyway).
7660
7661	Adjust to Autoconf 2.60 and today's gnulib.
7662	* bootstrap (gnulib_modules): Add stdint.
7663	Remove special case for m4/onceonly_2_57.m4, since gnulib-tool
7664	no longer copies it.
7665	(intl_files_to_remove): Remove m4/longlong.m4 and m4/wchar_t.m4,
7666	since stdint needs the former and wcwidth (which is now required
7667	by mbswidth) needs the latter.
7668	Append 'datarootdir = @datarootdir@' to po/Makefile.in.in, to
7669	work around a compatibility glitch between gettext 0.14.6 and
7670	Autoconf 2.60.
7671	* configure.ac (AC_PREREQ): Require Autoconf 2.60.
7672	Do not check for uintptr_t, since new stdint module does the right
7673	thing.
7674	* lib/.cvsignore: Remove alloca.c, alloca.h, alloca_.h.
7675	Add stdint.h, stdint_.h, wcwidth.h.
7676	* m4/.cvsignore: Remove alloca.m4, onceonly.m4.
7677	Add absolute-header.m4, double-slash-root.m4, longlong.m4,
7678	stdint.m4, wchar_t.m4, wcwidth.m4.
7679	* src/files.c: Include <dirname.h> and <stdio-safer.h> in the
7680	usual order for ../lib/*.h files.
7681	(file_name_split): Use last_component, not base_name, to adjust
7682	to gnulib changes.
7683	* src/parse-gram.h: Include <strverscmp.h> in the usual order
7684	for ../lib/*.h files.
7685	(YYTYPE_INT16, YYTYPE_INT8, YYTYPE_UINT16, YYTYPE_UINT8):
7686	Define unconditionally, since we now assume the stdint module.
7687	* src/scan-skel.l: Include <dirname.h>.
7688	(BASE_QPUTS): Use last_component, not base_name.
7689	* src/system.h: Include <unlocked-io.h> in the usual order
7690	for ../lib/*.h files.  Include <stdint.h> unconditionally,
7691	since we now use the stdint module.
7692	(uintptr_t): Declare if UINTPTR_MAX is not defined, not
7693	HAVE_UINTPTR_T, since we now use the stdint module.
7694	(base_name): Remove decl, since files now include <dirname.h>
7695	to get the decl.
7696
76972006-07-08  Akim Demaille  <akim@lrde.epita.fr>
7698
7699	* data/c.m4 (b4_location_initial_column, b4_location_initial_line):
7700	New, default to 1.
7701	* data/yacc.c, data/glr.c, data/location.cc: Use them.
7702	* NEWS, doc/bison.texinfo: The initial column and line are 1 by
7703	default.
7704	* tests/calc.at: Adjust.
7705
77062006-07-08  Akim Demaille  <akim@lrde.epita.fr>
7707
7708	* data/c.m4 (b4_basename): New.
7709	(b4_syncline): Also output the location of its invocation (from
7710	the skeleton).
7711	(b4_user_action, b4_define_user_action, b4_user_actions)
7712	(b4_user_initial_action, b4_user_post_prologue,	b4_user_start_header)
7713	(b4_user_stype): New.
7714	* data/yacc.c, data/glr.c, data/lalr1.cc, data/glr.cc: Use them.
7715
77162006-07-07  Joel E. Denny  <jdenny@ces.clemson.edu>
7717
7718	In the grammar file, the first column is 1 not 0 on the first line as
7719	on every other line.
7720	* src/parse-gram.y (%initial-action): Initialize @$ correctly.
7721	* tests/input.at (Torturing the Scanner): Update output.
7722
7723	* src/scan-gram.l (scanner_cursor): Declare it static.
7724
77252006-07-07  Joel E. Denny  <jdenny@ces.clemson.edu>
7726
7727	In warnings, say "previous declaration" rather than "first
7728	declaration".
7729	* src/symtab.c (redeclaration): Do that here.
7730	* src/reader.c (record_merge_function_type): In the case of a result
7731	type clash, report the previous declaration rather than the very first
7732	one in the grammar file.
7733	* tests/glr-regression.at (Missed %merge type warnings when LHS type is
7734	declared later): Add a third declaration to check this behavior.
7735	* tests/input.at (Incompatible Aliases): Update output.
7736
77372006-06-27  Akim Demaille  <akim@epita.fr>
7738
7739	* doc/Doxyfile.in: New.
7740	* doc/Makefile.am: Use it.
7741	* src/lalr.h, src/symtab.h: Initial doxygenation.
7742
77432006-06-26  Joel E. Denny  <jdenny@ces.clemson.edu>
7744
7745	Don't miss %merge result type warnings just because the LHS types are
7746	declared after the %merge.  This continues the effort of the previous
7747	patch.
7748	* src/reader.c (get_merge_function): Don't set the merger type yet.
7749	(record_merge_function_type): New function for setting the merger type
7750	and checking for clashes.
7751	(grammar_current_rule_merge_set): Set the location of the %merge for
7752	the current rule.
7753	(packgram): Invoke record_merge_function_type for each rule now that
7754	all symbol type declarations have been parsed.
7755	* src/reader.h (merger_list.type_declaration_location): New member
7756	storing the location of the first %merge from which the type for this
7757	merging function was derived.
7758	* src/symlist.h (symbol_list.merger_declaration_location): New member
7759	storing the location of a rule's %merge, if any.
7760	* tests/glr-regression.at (Missed %merge type warnings when LHS type is
7761	declared later): New test to catch the error fixed by the above patch.
7762
77632006-06-26  Joel E. Denny  <jdenny@ces.clemson.edu>
7764
7765	Get action warnings (grammar_rule_check) right even when symbol
7766	declarations appear after the rules.  Discussed at
7767	<http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00108.html>
7768	and
7769	<http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00151.html>.
7770	Don't mistake the type of $$ in a midrule to be that of its parent
7771	rule's $$.
7772	* src/reader.c (grammar_current_rule_end): Don't invoke
7773	grammar_rule_check yet since not all symbol declarations may have been
7774	parsed yet.
7775	(grammar_midrule_action): Likewise.
7776	Don't record whether the midrule's $$ has been used yet since actions
7777	haven't been translated yet.
7778	Record the midrule's parent rule and its RHS index within the parent
7779	rule.
7780	(grammar_current_rule_action_append): Don't translate the action yet
7781	since not all symbol declarations may have been parsed yet and, thus,
7782	warnings about types for $$, $n, @$, and @n can't be reported yet.
7783	(packgram): Translate the action and invoke grammar_rule_check now that
7784	all symbol declarations have been parsed.
7785	* src/scan-code.l (handle_action_dollar): Now that this is invoked
7786	after parsing the entire grammar file, the symbol list here in the case
7787	of a midrule is actually the midrule's empty RHS, so reference its
7788	parent rule's RHS where necessary.
7789	On the other hand, now that you can already know it's a midrule, you
7790	aren't forced to think $$ has the same type as its parent rule's $$.
7791	(handle_action_at): In the case of a midrule, reference the parent rule
7792	where necessary.
7793	* src/symlist.c (symbol_list_new): Initialize new midrule-related
7794	members.
7795	(symbol_list_length): Now that this is invoked after all rules have
7796	been parsed, a NULL symbol (rather than a NULL symbol list node)
7797	terminates a rule.  symbol_list_print already does this correctly.
7798	* src/symlist.h (symbol_list.midrule_parent_rule,
7799	symbol_list.midrule_parent_rhs_index): New members so that midrules can
7800	remember their relationships with their parents.
7801	* tests/input.at (Type Clashes): Extend to catch the midrule $$ error
7802	fixed by the above patch.
7803	(_AT_UNUSED_VALUES_DECLARATIONS, AT_CHECK_UNUSED_VALUES): New m4 macros
7804	implementing...
7805	(Unused values): ... this old test case and...
7806	(Unused values before symbol declarations): ... this new test case.
7807	This one is the same as `Unused values' except that all symbol
7808	declarations appear after the rules in order to catch the rest of the
7809	errors fixed by the above patch.
7810
78112006-06-26  Joel E. Denny  <jdenny@ces.clemson.edu>
7812
7813	More cleanup.
7814	* src/reader.c (current_rule): Declare it static since it's no longer
7815	used outside this file.
7816	(grammar_current_rule_action_append): Remove redundant arguments from
7817	translate_rule_action invocation.
7818	* src/reader.h (current_rule): Remove this unused extern.
7819	* src/scan-code.h (translate_rule_action): Remove redundant arguments.
7820	* src/scan-code.l (translate_rule_action): Likewise.
7821
78222006-06-25  Joel E. Denny  <jdenny@ces.clemson.edu>
7823
7824	Clean up yesterday's patch.
7825	* parse-gram.y (rhs): Move grammar_midrule_action invocation from here
7826	to...
7827	* src/reader.c (grammar_current_rule_action_append): ... here for
7828	consistency with grammar_current_rule_symbol_append.
7829	* tests/regression.at (Braced code in declaration in rules section):
7830	Make yyerror and yylex static as usual.
7831
78322006-06-24  Joel E. Denny  <jdenny@ces.clemson.edu>
7833
7834	Fix bug that mistakes braced code in a declaration in the rules section
7835	to be a rule action.  Mentioned at
7836	<http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00105.html>.
7837	* src/scan-gram.l: Move midrule action detection from the start of the
7838	scanning of any braced code to...
7839	* src/parse-gram.y (rhs): ... the parsing of braced code as a rule
7840	action.  For readability, use $2 and @2 rather than the equivalent
7841	global variables.
7842	* tests/regression.at (Braced code in declaration in rules section):
7843	New test to catch the error fixed by the above patch.
7844
7845	Work on code readability some.
7846	* src/scan-code.l (current_rule): Get rid of this misleading and
7847	redundant declaration: it's actually extern'ed in reader.h.
7848	(YY_DECL, code_lex, handle_action_dollar, handle_action_at,
7849	translate_action): Add a rule argument and use it instead of the global
7850	current_rule.
7851	(translate_rule_action): This already receives current_rule through an
7852	argument, so pass it on to translate_action instead of assigning
7853	current_rule to current_rule.
7854	(translate_symbol_action, translate_code): Pass rule = NULL to
7855	translate_action.
7856
78572006-06-23  Joel E. Denny  <jdenny@ces.clemson.edu>
7858
7859	Rename %before-definitions to %start-header and %after-definitions to
7860	%end-header.  Don't use these declarations to separate pre-prologue
7861	blocks from post-prologue blocks.  Add new order-independent
7862	declarations %before-header and %after-header as alternatives to the
7863	traditional Yacc pre-prologue and post-prologue blocks.  Discussed at
7864	<http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00110.html>.
7865	* NEWS (2.3+): Update for these changes.
7866	* data/glr.c (b4_before_definitions): Update to...
7867	(b4_start_header): ... this.
7868	(b4_after_definitions): Update to...
7869	(b4_end_header): ... this.
7870	* data/glr.cc: Likewise.
7871	* data/lalr1.cc: Likewise.
7872	* data/yacc.c: Likewise.
7873	* doc/bison.texinfo (The prologue): Update names, and replace remaining
7874	prologue blocks with %*-header declarations.
7875	(Calc++ Parser): Likewise.
7876	(Decl Summary): Update names.
7877	(Table of Symbols): Update description.
7878	* src/parse-gram.y (PERCENT_AFTER_DEFINITIONS): Update to...
7879	(PERCENT_END_HEADER): ... this.
7880	(PERCENT_BEFORE_DEFINITIONS): Update to...
7881	(PERCENT_START_HEADER): ... this.
7882	(PERCENT_AFTER_HEADER, PERCENT_BEFORE_HEADER): New tokens.
7883	(declaration): Update token names and m4 macro names.
7884	When parsing %end-header and %start-header, invoke translate_code
7885	before muscle_code_grow, and no longer set global booleans to remember
7886	whether these declarations have been seen.
7887	Parse new %after-header and %before-header.
7888	* src/reader.c (before_definitions, after_definitions): Remove.
7889	(prologue_augment): Accept a new bool argument to specify whether to
7890	augment the pre-prologue or post-prologue.
7891	* src/reader.h (before_definitions, after_definitions): Remove these
7892	extern's.
7893	(prologue_augment): Add new bool argument.
7894	* src/scan-gram.l (PERCENT_AFTER_DEFINITIONS): Update to...
7895	(PERCENT_END_HEADER): ... this.
7896	(PERCENT_BEFORE_DEFINITIONS): Update to...
7897	(PERCENT_START_HEADER): ... this.
7898	(PERCENT_AFTER_HEADER, PERCENT_BEFORE_HEADER): New tokens.
7899	* tests/actions.at (Printers and Destructors): Update names.
7900
79012006-06-22  Joel E. Denny  <jdenny@ces.clemson.edu>
7902
7903	Add comparison operators for C++ location classes.  Discussed at
7904	<http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00092.html>.
7905	* data/c++.m4 (b4_define_location_comparison): New boolean %define
7906	declaration indicating whether filename_type has an operator==.  If
7907	filename_type is `std::string', it defaults to `1', `0' otherwise.
7908	* data/location.cc: Iff b4_define_location_comparison is `1', add
7909	operator== and operator!= for class position and for class location.
7910
7911	Some minor fixes.
7912	* src/scan-action.l: Remove unused file.
7913	* src/symtab.c (symbol_printer_set): Use printer_location not
7914	destructor_location.
7915	* src/symtab.h (struct symbol): Replace incorrect source comment for
7916	printer members.
7917	* tests/input.at (Incompatible Aliases): Update output with correct
7918	printer location.
7919
79202006-06-20  Joel E. Denny  <jdenny@ces.clemson.edu>
7921
7922	Don't put the pre-prologue in the header file.  For the yacc.c code
7923	file and the glr.c header and code files, move the pre-prologue before
7924	the token definitions.  Add new %before-definitions and
7925	%after-definitions to declare code that will go in both the header file
7926	and code file.  Discussed at
7927	<http://lists.gnu.org/archive/html/bison-patches/2005-12/msg00000.html>,
7928	<http://lists.gnu.org/archive/html/bison-patches/2006-01/msg00016.html>,
7929	and
7930	<http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00055.html>.
7931	* NEWS (2.3+): Describe these changes.
7932	* data/glr.c (b4_pre_prologue): Move from within to before...
7933	(b4_shared_declarations): ... this.
7934	Add new b4_before_definitions before b4_token_enums.
7935	Add new b4_after_definitions at the end.
7936	* data/glr.cc (b4_pre_prologue): Replace with...
7937	(b4_before_definitions): ... this in the header file.
7938	(b4_after_definitions): New near the end of the header file.
7939	* data/lalr1.cc (b4_pre_prologue): Move from the header file to the
7940	code file right before including the header file.
7941	(b4_before_definitions): New in the previous position of
7942	b4_pre_prologue in the header file.
7943	(b4_after_definitions): New near the end of the header file.
7944	* data/yacc.c: Clean up some m4 quoting especially in the header file.
7945	(b4_token_enums_defines): In the code file, move to right before
7946	YYSTYPE for consistency with the header file.
7947	(b4_before_definitions): New right before b4_token_enums_defines in
7948	both the header and code file.
7949	(b4_after_definitions): New right after YYLTYPE and yylloc in both the
7950	header and code file.
7951	* doc/bison.texinfo (Prologue): Show use of %before-definitions instead
7952	of prologues for %union dependencies.
7953	(Decl Summary): In %defines description, mention the effect of
7954	%before-definitions and %after-definitions on the header file.
7955	(Calc++ Parser): Forward declare driver in a %before-definitions rather
7956	than in the pre-prologue so that make check succeeds.
7957	(Table of Symbols): Add entries for %before-definitions and
7958	%after-definitions.
7959	* src/parse-gram.y (PERCENT_BEFORE_DEFINITIONS): New token for
7960	%before-definitions.
7961	(PERCENT_AFTER_DEFINITIONS): New token for %after-definitions.
7962	(declaration): Parse those declarations and append to
7963	b4_before_definitions and b4_after_definitions, respectively.
7964	* src/reader.c (before_definitions, after_definitions): New bools to
7965	track whether those declarations have been seen.
7966	(prologue_augment): Add to the post-prologue if %union,
7967	%before-definitions, or %after-definitions has been seen.
7968	* src/reader.h (before_definitions, after_definitions): New extern's.
7969	* src/scan-gram.l: Scan the new declarations.
7970	* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Place the second
7971	prologue block in a %before-definitions or a %after-definitions based
7972	on whether the %union is declared.
7973	* tests/regression.at (Early token definitions with --yacc, Early token
7974	definitions without --yacc): Move tests for token definitions into the
7975	post-prologue since token names are no longer defined in the
7976	pre-prologue.
7977
79782006-06-20  Akim Demaille  <akim@epita.fr>
7979
7980	* src/symtab.h, src/symtab.c (symbol_from_uniqstr): New.
7981	(symbol_get): Use it.
7982	* src/parse-gram.y: Use it.
7983
79842006-06-19  Joel E. Denny  <jdenny@ces.clemson.edu>
7985
7986	* src/scan-gram.l: Remove unused declaration of last_string_1 so the
7987	build succeeds when configured with --enable-gcc-warnings.
7988
79892006-06-19  Paul Eggert  <eggert@cs.ucla.edu>
7990
7991	* src/parse-gram.y (char_name): New function.
7992	(CHAR, STRING, string_content): For %printer, properly escape.
7993	(ID): Prefer fputs to fprintf.
7994	(id): Reindent to be consistent with other rules.
7995	Properly quote char.
7996
7997	The Translation Project changed its way of publishing translations
7998	to maintainers.  I haven't received any responses to my request
7999	for supporting the old way, or for documenting the new way.  I
8000	have modified 'bootstrap' to use screen scraping
8001	(in this case, HTML scraping).  This is unreliable and inelegant,
8002	but I don't see any better way.  Yuck.
8003	* bootstrap (TP_URL, WGET_COMMAND): New vars.
8004	(get_translations): New function, which uses HTML scraping to
8005	deduce locations of latest translations.
8006	Use this function to grab both bison and bison-runtime .po files.
8007	Don't bother priming the pump for the runtime-po domain any more,
8008	as it's now translated better than bison is.
8009
80102006-06-19  Akim Demaille  <akim@epita.fr>
8011
8012	* src/scan-gram.l: No longer "parse" things after `%union' until
8013	`{'.  Rather, return a single "%union" token.
8014	No longer make symbols: return strings, and leave the conversion
8015	to symbols to the parser.
8016	(SC_PRE_CODE, token_type): Remove.
8017	* src/parse-gram.y (%union): New field `character'.
8018	Sort tokens.
8019	(CHAR): New token.
8020	(ID, ID_COLON): Now that the scanner no longer makes them
8021	identifiers, adjust all uses to invoke symbol_get.
8022	(id_colon): New, wraps the conversion from string to symbol.
8023	(%union): Accept a possible union_name.
8024	(symbol): Now can be a char.
8025	* data/c.m4 (b4_union_name): Leave a default value.
8026	* data/glr.c, data/yacc.c: Use it.
8027
80282006-06-11  Joel E. Denny  <jdenny@ces.clemson.edu>
8029
8030	For associating token numbers with token names for "yacc.c", don't use
8031	#define statements unless `--yacc' is specified; always use enum
8032	yytokentype.  Most important discussions start at:
8033	<http://lists.gnu.org/archive/html/bison-patches/2005-09/msg00053.html>,
8034	<http://lists.gnu.org/archive/html/bison-patches/2005-12/msg00052.html>,
8035	and
8036	<http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00043.html>.
8037	* NEWS (2.3+): Mention.
8038	* data/c.m4 (b4_yacc_if): New.
8039	(b4_token_enums_defines): Use b4_yacc_if to decide whether to add the
8040	token #define's.
8041	* doc/bison.texinfo (Bison Options): Describe the effect of `--yacc'
8042	on token name definitions.
8043	* src/getargs.c (usage): Capitalize `Yacc' in English.
8044	* src/output.c (prepare): Define b4_yacc_flag.
8045	* tests/regression.at (Early token definitions): Test that tokens names
8046	are defined before the pre-prologue not just before the post-prologue.
8047	Remove this test case and copy to...
8048	(Early token definitions with --yacc): ... this to test #define's.
8049	(Early token definitions without --yacc): ... and this to test enums.
8050
80512006-06-11  Paul Eggert  <eggert@cs.ucla.edu>
8052
8053	* NEWS: Reword the post-2.3 change to not be so optimistic about
8054	removing the old "look-ahead" spelling.
8055	Update previous look-ahead/lookahead change reports.
8056	* REFERENCES: look-ahead -> lookahead (since that's
8057	what he actually wrote).
8058	* doc/refcard.tex: look ahead -> lookahead,
8059	look-ahead -> lookahead
8060
80612006-06-09  Joel E. Denny  <jdenny@ces.clemson.edu>
8062
8063	For consistency, use `lookahead' instead of `look-ahead' or
8064	`look_ahead'.  Discussed starting at
8065	<http://lists.gnu.org/archive/html/bison-patches/2006-01/msg00049.html>
8066	and then at
8067	<http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00017.html>.
8068	* NEWS: For the next release, note the change to `--report'.
8069	* TODO, doc/bison.1: Update English.
8070	* doc/bison.texinfo: Update English.
8071	(Understanding Your Parser, Bison Options): Document as
8072	`--report=lookahead' rather than `--report=look-ahead'.
8073	* src/conflicts.c: Update English in comments.
8074	(lookahead_set): Rename from look_ahead_set.
8075	(flush_reduce): Rename argument look_ahead_tokens to lookahead_tokens.
8076	(resolve_sr_conflict): Rename local look_ahead_tokens to
8077	lookahead_tokens, and update other uses.
8078	(flush_shift, set_conflicts, conflicts_solve, count_sr_conflicts,
8079	count_rr_conflicts, conflicts_free): Update uses.
8080	* src/getargs.c (report_args): Move "lookahead" before alternate
8081	spellings.
8082	(report_types): Update uses.
8083	(usage): For `--report' usage description, state `lookahead' spelling
8084	rather than `look-ahead'.
8085	* src/getargs.h (report.report_lookahead_tokens): Rename from
8086	report_look_ahead_tokens.
8087	* src/lalr.c: Update English in comments.
8088	(compute_lookahead_tokens): Rename from compute_look_ahead_tokens.
8089	(state_lookahead_tokens_count): Rename from
8090	state_look_ahead_tokens_count.
8091	Rename local n_look_ahead_tokens to n_lookahead_tokens.
8092	(lookahead_tokens_print): Rename from look_ahead_tokens_print.
8093	Rename local n_look_ahead_tokens to n_lookahead_tokens.
8094	Update other uses.
8095	Update English in output.
8096	(add_lookback_edge, initialize_LA, lalr, lalr_free): Update uses.
8097	* src/print.c: Update English in comments.
8098	(lookahead_set): Rename from look_ahead_set.
8099	(print_reduction): Rename argument lookahead_token from
8100	look_ahead_token.
8101	(print_core, state_default_rule, print_reductions, print_results):
8102	Update uses.
8103	* src/print_graph.c: Update English in comments.
8104	(print_core): Update uses.
8105	* src/state.c: Update English in comments.
8106	(reductions_new): Update uses.
8107	(state_rule_lookahead_tokens_print): Rename from
8108	state_rule_look_ahead_tokens_print, and update other uses.
8109	* src/state.h: Update English in comments.
8110	(reductions.lookahead_tokens): Rename from look_ahead_tokens.
8111	(state_rule_lookahead_tokens_print): Rename from
8112	state_rule_look_ahead_tokens_print.
8113	* src/tables.c: Update English in comments.
8114	(conflict_row, action_row): Update uses.
8115	* tests/glr-regression.at
8116	(Incorrect lookahead during deterministic GLR,
8117	Incorrect lookahead during nondeterministic GLR): Rename
8118	print_look_ahead to print_lookahead.
8119	* tests/torture.at: Update English in comments.
8120	(AT_DATA_LOOKAHEAD_TOKENS_GRAMMAR): Rename from
8121	AT_DATA_LOOK_AHEAD_TOKENS_GRAMMAR.
8122	(Many lookahead tokens): Update uses.
8123	* data/glr.c: Update English in comments.
8124	* lalr1.cc: Likewise.
8125	* yacc.c: Likewise.
8126	* src/conflicts.h: Likewise.
8127	* src/lalr.h: Likewise.
8128	* src/main.c: Likewise.
8129	* src/output.c: Likewise.
8130	* src/parse-gram.c: Likewise.
8131	* src/tables.h: Likewise.
8132	* tests/calc.at: Likewise.
8133
81342006-06-08  Joel E. Denny  <jdenny@ces.clemson.edu>
8135
8136	* src/flex-scanner.h (yytext): Remove stray `*/' in #define.
8137
81382006-06-07  Paul Eggert  <eggert@cs.ucla.edu>
8139
8140	* TODO: Add request from Nelson H. F. Beebe to be able to install
8141	Bison without installing the yacc script.
8142
81432006-06-07  Joel E. Denny  <jdenny@ces.clemson.edu>
8144
8145	* src/flex-scanner.h: For the sake of Flex 2.5.4, don't #define yyleng
8146	and yytext if they're already #define'd.
8147	* src/flex-scanner.h, src/location.h: Move #include "system.h" to...
8148	* src/scan-code-c.c: ... here.
8149	* src/scan-code.l, src/scan-gram.l: ... and here.  Also #include
8150	<config.h>.
8151
81522006-06-07  Joel E. Denny  <jdenny@ces.clemson.edu>
8153
8154	Get Bison to build again when configured with --enable-gcc-warnings.
8155	* src/location.c, src/location.h, src/main.c, src/scan-code.l: Add some
8156	missing #include's.
8157	* src/scan-code.l (handle_action_dollar, handle_action_at): Rename
8158	loc argument as it shadows a global.
8159	* src/scan-gram.l: Remove stray comma that prevents boundary_set
8160	invocation.
8161
8162	* src/.cvsignore: Add scan-code.c.
8163
81642006-06-07  Akim Demaille  <akim@epita.fr>
8165
8166	* src/scan-gram.l: Move the "add a trailing ; to actions" code
8167	to...
8168	* src/scan-code.l: here.
8169	* tests/input.at (Torturing the Scanner): Fix another location
8170	error.
8171
81722006-06-07  Akim Demaille  <akim@epita.fr>
8173
8174	* src/Makefile.am (BUILT_SOURCES): Fix the trailing backslash.
8175
81762006-06-06  Akim Demaille  <akim@epita.fr>
8177
8178	Extract the parsing of user actions from the grammar scanner.
8179	As a consequence, the relation between the grammar scanner and
8180	parser is much simpler.  We can also split "composite tokens" back
8181	into simple tokens.
8182	* src/gram.h (ITEM_NUMBER_MAX, RULE_NUMBER_MAX): New.
8183	* src/scan-gram.l (add_column_width, adjust_location): Move to and
8184	rename as...
8185	* src/location.h, src/location.c (add_column_width)
8186	(location_compute): these.
8187	Fix the column count: the initial column is 0.
8188	(location_print): Be robust to ending column being 0.
8189	* src/location.h (boundary_set): New.
8190	* src/main.c: Adjust to scanner_free being renamed as
8191	gram_scanner_free.
8192	* src/output.c: Include scan-code.h.
8193	* src/parse-gram.y: Include scan-gram.h and scan-code.h.
8194	Use boundary_set.
8195	(PERCENT_DESTRUCTOR, PERCENT_PRINTER, PERCENT_INITIAL_ACTION)
8196	(PERCENT_LEX_PARAM, PERCENT_PARSE_PARAM): Remove the {...} part,
8197	which is now, again, a separate token.
8198	Adjust all dependencies.
8199	Wherever actions with $ and @ are used, use translate_code.
8200	(action): Remove this nonterminal which is now useless.
8201	* src/reader.c: Include assert.h, scan-gram.h and scan-code.h.
8202	(grammar_current_rule_action_append): Use translate_code.
8203	(packgram): Bound check ruleno, itemno, and rule_length.
8204	* src/reader.h (gram_in, gram__flex_debug, scanner_cursor)
8205	(last_string, last_braced_code_loc, max_left_semantic_context)
8206	(scanner_initialize, scanner_free, scanner_last_string_free)
8207	(gram_out, gram_lineno, YY_DECL_): Move to...
8208	* src/scan-gram.h: this new file.
8209	(YY_DECL): Rename as...
8210	(GRAM_DECL): this.
8211	* src/scan-code.h, src/scan-code.l, src/scan-code-c.c: New.
8212	* src/scan-gram.l (gram_get_lineno, gram_get_in, gram_get_out):
8213	(gram_get_leng, gram_get_text, gram_set_lineno, gram_set_in):
8214	(gram_set_out, gram_get_debug, gram_set_debug, gram_lex_destroy):
8215	Move these declarations, and...
8216	(obstack_for_string, STRING_GROW, STRING_FINISH, STRING_FREE):
8217	these to...
8218	* src/flex-scanner.h: this new file.
8219	* src/scan-gram.l (rule_length, rule_length_overflow)
8220	(increment_rule_length): Remove.
8221	(last_braced_code_loc): Rename as...
8222	(gram_last_braced_code_loc): this.
8223	Adjust to the changes of the parser.
8224	Move all the handling of $ and @ into...
8225	* src/scan-code.l: here.
8226	* src/scan-gram.l (handle_dollar, handle_at): Remove.
8227	(handle_action_dollar, handle_action_at): Move to...
8228	* src/scan-code.l: here.
8229	* src/Makefile.am (bison_SOURCES): Add flex-scanner.h,
8230	scan-code.h, scan-code-c.c, scan-gram.h.
8231	(EXTRA_bison_SOURCES): Add scan-code.l.
8232	(BUILT_SOURCES): Add scan-code.c.
8233	(yacc): Be robust to white spaces.
8234
8235	* tests/conflicts.at, tests/input.at, tests/reduce.at,
8236	* tests/regression.at: Adjust the column numbers.
8237	* tests/regression.at: Adjust the error message.
8238
82392006-06-06  Joel E. Denny  <jdenny@ces.clemson.edu>
8240
8241	* src/getargs.c (usage): Mention GLR not just LALR(1) in --help output.
8242	Use Akim's wording from
8243	<http://lists.gnu.org/archive/html/bison-patches/2006-05/msg00056.html>.
8244
82452006-06-06  Joel E. Denny  <jdenny@ces.clemson.edu>
8246
8247	Between Bison releases, manually append `+' to the previous Bison
8248	release number, and use that as a signal to automatically print the
8249	ChangeLog's CVS Id keyword from --version.  Discussed starting at
8250	<http://lists.gnu.org/archive/html/bison-patches/2006-05/msg00028.html>.
8251	* ChangeLog: Add Id header.
8252	* configure.ac (AC_INIT): Append `+' to `2.3'.
8253	* src/.cvsignore: Add revision.c.
8254	* src/Makefile.am (bison_SOURCES): Add revision.c and revision.h.
8255	(BUILT_SOURCES): Add revision.c.
8256	(revision.c): New target rule.  This file defines a new global variable
8257	named revision.  It initializes it with either the Id from ChangeLog
8258	or, if VERSION doesn't contain `+', with the empty string.
8259	* src/getargs.c (version): Print the value of revision.
8260	* src/revision.h: Extern revision.
8261
82622006-06-05  Paul Eggert  <eggert@cs.ucla.edu>
8263
8264	* NEWS: Version 2.3.
8265	* configure.ac (AC_INIT): Likewise.
8266
82672006-05-30  Paul Eggert  <eggert@cs.ucla.edu>
8268
8269	* data/glr.c (YYRECOVERING): Define to be a function-like macro
8270	with no arguments, not as an object-like macro.  This is for
8271	compatibility with data/yacc.c.  Problem reported by John P. Hartmann in
8272	<http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00059.html>.
8273	* doc/bison.texinfo (Action Features, Error Recovery, Table of Symbols):
8274	Document this.
8275
82762006-05-30  Joel E. Denny  <jdenny@ces.clemson.edu>
8277
8278	* src/getargs.c (usage): Back out yesterday's modification of the
8279	--help output so that we don't have to wait for translation before
8280	releasing 2.3.
8281
82822006-05-29  Paul Eggert  <eggert@cs.ucla.edu>
8283
8284	* doc/bison.texinfo (Introduction): Don't say "GLR grammar".
8285	Problem reported by Akim Demaille.
8286
82872006-05-29  Joel E. Denny  <jdenny@ces.clemson.edu>
8288
8289	* src/getargs.c (usage): Mention GLR not just LALR(1) in --help output.
8290
82912006-05-26  Paul Eggert  <eggert@cs.ucla.edu>
8292
8293	* data/yacc.c (yy_reduce_print): Omit trailing white space in
8294	generated source code.  Problem reported by Frans Englich in
8295	<http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00049.html>.
8296
82972006-05-22  Paul Eggert  <eggert@cs.ucla.edu>
8298
8299	* Makefile.maint (gzip_rsyncable, GZIP_ENV): Compute within the
8300	shell, not within 'make', so that 'make' by an ordinary builder
8301	(using GNU make) does not worry about configuring gzip.  This also
8302	works around a bug reported independently by Keith Thompson and by
8303	Georg Schwarz, whereby gzip 1.2.4 --help would output usage on
8304	stderr rather than stdout, messing up the build logs.
8305
83062006-05-21  Joel E. Denny  <jdenny@ces.clemson.edu>
8307
8308	* data/yacc.c (yyparse): Wrap the final return from yyparse inside YYID
8309	to make sure that YYID will never be unused.  This fixes a 'make
8310	maintainer-check' failure caused by the recent changes to the 'Trivial
8311	grammars' test case, which caused g++ 4.1.0 to complain that YYID was
8312	not used.
8313	* data/glr.c (yyparse): Wrap yyparse's return inside YYID just in case.
8314
83152006-05-21  Joel E. Denny  <jdenny@ces.clemson.edu>
8316
8317	* data/glr.c (yyresolveLocations): Remove bogus YYASSERT that the
8318	state before an empty RHS is always resolved here.  Only the location
8319	of that state is guaranteed to be resolved, and that's enough.  This
8320	fixes the remaining bug reported by Derek M. Jones in
8321	<http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00027.html>.
8322	* tests/glr-regression.at (Uninitialized location when reporting
8323	ambiguity): Test the above case.
8324	Also, the embedded comments in this test case claim it checks the case
8325	of an empty RHS that has inherited the initial location.  However, the
8326	corresponding LHS was already resolved, so yyresolveLocations didn't
8327	actually have reason to modify it.  Fix this by forcing
8328	nondeterministic operation at the beginning of the parse.
8329
83302006-05-20  Paul Eggert  <eggert@cs.ucla.edu>
8331
8332	* data/c.m4 (b4_yy_symbol_print_generate):
8333	(b4_yy_symbol_print_generate): Use 'YYSTYPE const' rather than
8334	'const YYSTYPE', and similarly for YYLTYPE.  This fixes one
8335	of the bugs reported today by Derek M Jones in
8336	<http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00027.html>.
8337	* doc/bison.texinfo (Value Type): Document that YYSTYPE must be
8338	defined to be a type name without parens or brackets.
8339	(Location Type): Similarly for YYLTYPE.
8340	* tests/regression.at (Trivial grammars): Put in a test for this
8341	bug that will be caught by 'make maintainer-check' (though not,
8342	alas, by 'make check' unless your compiler is picky).
8343
83442006-05-19  Paul Eggert  <eggert@cs.ucla.edu>
8345
8346	* NEWS: Version 2.2.
8347	* configure.ac (AC_INIT): Likewise.
8348
83492006-05-17  Joel E. Denny  <jdenny@ces.clemson.edu>
8350
8351	* data/glr.c (yyreportTree): Make room in yystates for the state
8352	preceding the RHS.  This fixes the segmentation fault reported by Derek
8353	M. Jones in
8354	<http://lists.gnu.org/archive/html/help-bison/2006-05/msg00035.html>.
8355	(yyreportTree, yypdumpstack): Subtract 1 from yyrule before printing
8356	to the user.  Reported for yyreportTree by Derek M. Jones later in the
8357	same thread.
8358	* THANKS: Add Derek M. Jones.
8359	Update my email address.
8360	Fix typo in Steve Murphy's name.
8361
83622006-05-14  Paul Eggert  <eggert@cs.ucla.edu>
8363
8364	* data/glr.c (yyreportSyntaxError): Fix off-by-one error in
8365	checking against YYLAST that caused the parser to miss a potential
8366	alternative in its diagnostic.
8367	Problem reported by Maria Jose Moron Fernandez in
8368	<http://lists.gnu.org/archive/html/bug-bison/2006-05/msg00024.html>.
8369	* data/lalr1.cc (yysyntax_error_): Likewise.
8370	* data/yacc.c (yysyntax_error): Likewise.
8371	* tests/regression.at (_AT_DATA_DANCER_Y): Use static array for
8372	tokens, in case we run into an older C compiler.
8373	(_AT_DATA_EXPECT2_Y, AT_CHECK_EXPECT2): New macros.
8374	Use them to check for the off-by-one error fixed above.
8375
8376	* data/yacc.c (yytnamerr): Fix typo: local var should be of type
8377	YYSIZE_T, not size_t.
8378	* tests/regression.at (Trivial grammars): New test, to catch
8379	the error fixed by the above patch.
8380
83812006-05-14  Akim Demaille  <akim@lrde.epita.fr>
8382
8383	* doc/bison.texinfo (C++ Bison Interface): Clarify the naming
8384	scheme.
8385	Reported by Steve Murphy.
8386
83872006-05-14  Akim Demaille  <akim@lrde.epita.fr>
8388
8389	* data/glr.cc, data/lalr1.cc: Using %defines is mandatory.
8390	* data/glr.cc: b4_location_flag is now b4_locations_flag.
8391
83922006-05-14  Akim Demaille  <akim@lrde.epita.fr>
8393
8394	Implement --trace=m4.
8395	* src/getargs.c (trace_types, trace_args): Accept trace_m4.
8396	* src/output.c (output_skeleton): When set, pass -dV to m4.
8397
8398	Factor the handling of flags in m4.
8399	* src/output.c (prepare): Rename the muscle names debug, defines,
8400	error_verbose to debug_flag, defines_flag, error_verbose_flag.
8401	* data/c.m4: Adjust.
8402	(_b4_define_flag_if, b4_define_flag_if, b4_defines_if): New.
8403	Use b4_define_flag_if to define other b4_FLAG_if macros.
8404	(b4_location_if): As a consequence, rename as...
8405	(b4_locations_if): this, for consistency.
8406	Adjust all the skeletons.
8407
84082006-05-14  Akim Demaille  <akim@lrde.epita.fr>
8409
8410	* etc/bench.pm: Shorten bench names.
8411
84122006-05-14  Akim Demaille  <akim@lrde.epita.fr>
8413
8414	* src/output.h, src/output.c (error_verbose): Move to...
8415	* src/getargs.h, src/getargs.c: here.
8416	Sort the flags.
8417	Adjust dependencies.
8418
84192006-05-13  Paul Eggert  <eggert@cs.ucla.edu>
8420
8421	* data/c.m4 (b4_copyright): Put the special exception for Bison
8422	skeletons here, so we don't have to put it in each skeleton.  All
8423	uses changed.  Suggested by Akim Demaille.  Also, wrap the
8424	copyright notice, in case it is longer than 80 columns.  Replace
8425	comma by newline after title.
8426
84272006-05-11  Paul Eggert  <eggert@cs.ucla.edu>
8428
8429	* doc/bison.texinfo (Calc++ Scanner): The flex behavior is an
8430	incompatibility, not a bug.  Mention that it wasn't fixed as of
8431	flex 2.5.33.
8432
84332006-05-11  Akim Demaille  <akim@lrde.epita.fr>
8434
8435	* examples/extexi: Enforce the precedence of concatenation over
8436	>>.
8437	Reported by Tommy Nordgren.
8438
84392006-05-11  Akim Demaille  <akim@lrde.epita.fr>
8440
8441	* data/lalr1.cc (yytranslate_): Rename token as t to avoid clashes
8442	with the member "token".
8443	Reported by Martin Nylin.
8444
84452006-05-08  Paul Eggert  <eggert@cs.ucla.edu>
8446
8447	* data/glr.c: Switch to Bison 2.2 special-exception language in
8448	the copyright notice.  Use more-regular format for titles and
8449	copyright notices.
8450	* data/glr.cc: Likewise.
8451	* data/location.cc: Likewise.
8452	* data/yacc.cc: Likewise.
8453	* doc/bison.texinfo (Conditions): Document this.
8454	* NEWS: likewise.  Upgrade version to 2.2.
8455
84562006-04-27  Akim Demaille  <akim@lrde.epita.fr>
8457
8458	* data/glr.cc: Remove dead code.
8459
84602006-04-25  Paul Eggert  <eggert@cs.ucla.edu>
8461
8462	* bootstrap: Comment out the AM_CPPFLAGS line, since we don't use
8463	that variable and the line breaks the bootstrap.  Problem reported
8464	by Juan M. Guerrero.
8465
84662006-04-24  Akim Demaille  <akim@lrde.epita.fr>
8467
8468	* doc/bison.texinfo (Multiple start-symbols): New.
8469
84702006-04-24  Akim Demaille  <akim@lrde.epita.fr>
8471
8472	* etc/README, etc/bench.pl: New.
8473
84742006-04-03  Akim Demaille  <akim@lrde.epita.fr>
8475
8476	* src/scan-gram.l: Be robust to BRACED_CODE appearing before any
8477	rule.
8478	Reported by Mickael Labau.
8479	* tests/input.at (Torturing the Scanner): Test it.
8480
84812006-03-16  Paul Eggert  <eggert@cs.ucla.edu>
8482
8483	* doc/bison.texinfo (Decl Summary): Don't mention yylloc twice.
8484	Problem reported by Bob Rossi.
8485
84862006-03-13  Paul Eggert  <eggert@cs.ucla.edu>
8487
8488	* doc/bison.texinfo: Remove @shorttitlepage stuff; it wasn't used
8489	and didn't really work.
8490	For the index, use @ifnotinfo, not @iftex.
8491	Minor cleanups of spacing and terminology.
8492
84932006-03-12  Akim Demaille  <akim@lrde.epita.fr>
8494
8495	* tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Fix the definition
8496	of AT_NAME_PREFIX when %name-prefix is not used.
8497
84982006-03-12  Akim Demaille  <akim@lrde.epita.fr>
8499
8500	Apply --prefix to C++ skeletons too: they change the namespace.
8501	The test suite already exercize these cases.
8502	* data/c++.m4 (b4_namespace): New.
8503	* data/lalr1.cc, data/glr.cc, data/location.cc: Use it instead of `yy'.
8504	* data/lalr1.cc (yytnameerr_): Move its definition into the namespace.
8505	* data/yacc.c, data/glr.c: Remove a useless `[]'.
8506	* doc/bison.texinfo: Document it.
8507	(Option Cross Key): Use @multitable in all formats.  It looks
8508	nicer, even in TeX outputs.
8509	(Rules): Use the same code whatever the output type is.
8510	* tests/local.at (_AT_BISON_OPTION_PUSHDEFS)
8511	(_AT_BISON_OPTION_POPDEFS): Support AT_NAME_PREFIX.
8512	* tests/calc.at: Use it, instead of hard coding `yy'.
8513
85142006-03-10  Akim Demaille  <akim@lrde.epita.fr>
8515
8516	* TODO: Remove dead items.
8517
85182006-03-10  Akim Demaille  <akim@lrde.epita.fr>
8519
8520	* doc/FAQ: Remove, merged into...
8521	* doc/bison.texinfo (FAQ): this.
8522	* doc/Makefile.am (EXTRA_DIST): Adjust.
8523
85242006-03-10  Akim Demaille  <akim@lrde.epita.fr>
8525
8526	* data/c.m4 (b4_token_enum): Always define the enum of tokens,
8527	even if empty.
8528	* data/lalrl1.cc, data/glr.cc (parser::token_type): New.
8529	* doc/bison.texinfo (Calc++ Scanner): Use it.
8530
85312006-03-09  Paul Eggert  <eggert@cs.ucla.edu>
8532
8533	Fix two nits reported by twlevo, plus one more that I discovered.
8534
8535	* src/assoc.h (assoc_to_string): Give a name to the arg, as
8536	this is the usual Bison style.
8537	* src/location.h (location_print): Likewise.
8538
8539	* src/reader.h (token_name): Likewise.
8540
85412006-03-08  Paul Eggert  <eggert@cs.ucla.edu>
8542
8543	Fix some nits reported by twlevo.
8544	* doc/FAQ: Remove ancient Y2K FAQ, replacing it with "secure"
8545	and "POSIX".  Use more-modern syntax for URLs.  Mention C++
8546	and ask for Java.  Don't hardwire OS version numbers.  Add
8547	copyright notice.
8548	* m4/.cvsignore: Add unistd_h.m4, for latest gnulib.
8549	* src/conflicts.c (solved_conflicts_obstack): Now static.
8550
85512006-03-08  Joel E. Denny  <jdenny@ces.clemson.edu>
8552
8553	* doc/bison.texinfo (Introduction): Mention GLR and C++ as on the web
8554	page.  Say "you can use it" not "you may use it" as on the web page;
8555	we're describing capabilities not granting permission.
8556
85572006-03-06  Paul Eggert  <eggert@cs.ucla.edu>
8558
8559	* data/glr.c (yyresolveLocations): Rename local variables to avoid
8560	shadowing warnings.  Use usual patter for iterating through RHS.
8561	* tests/glr-regression.at
8562	(Uninitialized location when reporting ambiguity):
8563	Modify yylex so that it uses its argument, rather than trying
8564	to rely on ARGSUSED (which doesn't work for gcc with warnings).
8565	const char -> char const.
8566
8567	* tests/Makefile.am ($(srcdir)/package.m4, maintainer-check-valgrind):
8568	Don't use tabs inside commands; it messes up 'ps'.
8569	Problem reported by twlevo.
8570
85712006-03-06  Joel E. Denny  <jdenny@ces.clemson.edu>
8572
8573	* tests/glr-regression.at (Uninitialized location when reporting
8574	ambiguity): New test case.
8575	* data/glr.c (yyresolveLocations): New function, which uses
8576	YYLLOC_DEFAULT.
8577	(yyresolveValue): Invoke yyresolveLocations before reporting an
8578	ambiguity.
8579	* doc/bison.texinfo (Default Action for Locations): Note
8580	YYLLOC_DEFAULT's usage for ambiguity locations.
8581	(GLR Semantic Actions): Cross-reference those notes.
8582
85832006-03-04  Joel E. Denny  <jdenny@ces.clemson.edu>
8584
8585	* tests/glr-regression.at (Leaked semantic values when reporting
8586	ambiguity): Remove unnecessary union and type declarations.
8587	(Leaked lookahead after nondeterministic parse syntax error): New test
8588	case.
8589	* data/glr.c (yyparse): Check for zero stacks remaining before
8590	attempting to shift the lookahead so that you don't lose it.
8591
85922006-03-02  Joel E. Denny  <jdenny@ces.clemson.edu>
8593
8594	Avoid memory leaks by not invoking longjmp in yyreportAmbiguity.
8595	* tests/glr-regression.at (Leaked semantic values when reporting
8596	ambiguity): New test case.
8597	* data/glr.c (yyreportAmbiguity): Invoke yyyerror directly and return
8598	yyabort rather than invoking yyFail, which invokes longjmp.  Remove the
8599	now unnecessary yystackp parameter.
8600	(yyresolveValue): Return yyreportAmbiguity's result.  Now the necessary
8601	destructors can be called.
8602
8603	* tests/glr-regression.at: Don't invoke bison with `-t' unnecessarily
8604	in existing testcases.
8605
86062006-03-02  Joel E. Denny  <jdenny@ces.clemson.edu>
8607
8608	Don't leak semantic values for parent RHS when a user action cuts the
8609	parser, and clean up related code a bit.
8610	* tests/glr-regression.at (Leaked merged semantic value if user action
8611	cuts parse): Rename to...
8612	(Leaked semantic values if user action cuts parse): ... this.  Add check
8613	for leaked parent RHS values.
8614	* data/glr.c (yydestroyGLRState): In debugging output, distinguish
8615	between an unresolved state (non-empty chain of semantic options) and
8616	an incomplete one (signaled by an empty chain).
8617	(yyresolveStates): Document the interface.  Move all manipulation of a
8618	successfully or unsuccessfully resolved yyGLRState to...
8619	(yyresolveValue): ... here so that yyresolveValue always leaves a
8620	yyGLRState with consistent data and thus is easier to understand.
8621	Remove the yyvalp and yylocp parameters since they are always just
8622	taken from the yys parameter.  When reporting a discarded merged value
8623	in debugging output, note that it is incompletely merged.  Document the
8624	interface.
8625	(yyresolveAction): If resolving any of the RHS states fails, destroy
8626	them all rather than leaking them.  Thus, as long as user actions are
8627	written to clean up the RHS correctly, yyresolveAction always cleans up
8628	the RHS of a semantic option.  Document the interface.
8629
86302006-02-27  Paul Eggert  <eggert@cs.ucla.edu>
8631
8632	* data/glr.c (yyexpandGLRStack): Catch an off-by-one error that
8633	led to a segmentation fault in GNU Pascal.  Problem reported
8634	by Waldek Hebisch.
8635
86362006-02-21  Joel E. Denny  <jdenny@ces.clemson.edu>
8637
8638	* doc/bison.texinfo (Mid-Rule Actions): Explain how to bury a
8639	mid-rule action inside a nonterminal symbol in order to declare a
8640	destructor for its semantic value.
8641
86422006-02-16  Paul Eggert  <eggert@cs.ucla.edu>
8643
8644	* data/yacc.c [(! defined yyoverflow || YYERROR_VERBOSE) && !
8645	YYSTACK_USE_ALLOCA && ! defined YYSTACK_ALLOC && defined
8646	__cplusplus && ! defined _STDLIB_H && !
8647	((defined YYMALLOC || defined malloc) && (defined YYFREE ||
8648	defined free))]: Include <stdlib.h> rather than rolling our own
8649	declarations of malloc and free, to avoid problems with
8650	incompatible declarations (using 'throw') C++'s stdlib.h.  This
8651	should fix Debian bug 340012
8652	<http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=340012>,
8653	reported by Guillaume Melquiond.
8654
86552006-02-13  Paul Eggert  <eggert@cs.ucla.edu>
8656
8657	* NEWS: Clarify symbols versus types in unused-value warnings.
8658
8659	* configure.ac (AC_INIT): Bump version number.
8660
86612006-02-13  Paul Eggert  <eggert@cs.ucla.edu>
8662
8663	* NEWS: Version 2.1a.
8664	* tests/headers.at (AT_TEST_CPP_GUARD_H): Declare yyerror and yylex,
8665	since C99 requires this.
8666
86672006-02-11  Paul Eggert  <eggert@cs.ucla.edu>
8668
8669	* m4/c-working.m4: New file.
8670	* configure.ac (BISON_TEST_FOR_WORKING_C_COMPILER): Use it.
8671
86722006-02-10  Paul Eggert  <eggert@cs.ucla.edu>
8673
8674	* Makefile.maint: Merge from coreutils.
8675
86762006-02-09  Paul Eggert  <eggert@cs.ucla.edu>
8677
8678	More portability fixes for problems summarized by Nelson H. F. Beebe.
8679
8680	* m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Catch a
8681	configuration screwup "./configure CC=/opt/SUNWspro/bin/c89
8682	CFLAGS="-xarch=generic64" CXX=/opt/SUNWspro/bin/CC
8683	LDFLAGS="-xarch=generic64" with Sun C 5.7 on Solaris 10; this
8684	messes up because C++ code is compiled in 32-bit mode but linked
8685	in 64-bit mode.
8686
86872006-02-08  Paul Eggert  <eggert@cs.ucla.edu>
8688
8689	More portability fixes for problems summarized by Nelson H. F. Beebe.
8690
8691	* doc/bison.texinfo (Calc++ Scanner): Work around a bug in flex
8692	2.5.31.  This resembles the 2005-10-10 patch to src/scan-skel.l.
8693
8694	* examples/calc++/Makefile.am (check_PROGRAMS): Renamed from
8695	nodist_PROGRAMS, since we don't need to actually compile the
8696	example if we're just doing a plain 'make'.  This avoids bothering
8697	the installer unnecessarily about problems due to weird C++
8698	compilers.
8699
87002006-02-06  Paul Eggert  <eggert@cs.ucla.edu>
8701
8702	More portability fixes for problems summarized by Nelson H. F. Beebe.
8703
8704	* tests/headers.at (AT_TEST_CPP_GUARD_H): Use #include <...> rather
8705	than #include "...", and compile with -I'.'.  The old method was
8706	not portable, according to Posix and the C standard, and it does
8707	not work with Sun C 5.7, where previous #line directives affect
8708	the working directory used in later #include "..." directives.
8709
87102006-02-06  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
8711
8712	Various DJGGP specific issues in /djgpp
8713
87142006-02-02  Paul Eggert  <eggert@cs.ucla.edu>
8715
8716	More portability fixes for problems summarized by Nelson H. F. Beebe.
8717
8718	* m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check that
8719	'#include <map>' works and that you can apply ++ to iterators.
8720
87212006-02-01  Paul Eggert  <eggert@cs.ucla.edu>
8722
8723	Work around portability problems summarized by Nelson H. F. Beebe in
8724	<http://lists.gnu.org/archive/html/bug-bison/2005-09/msg00021.html>.
8725
8726	* m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check
8727	that '#include <string>' works.
8728
8729	* data/lalr1.cc (yytranslate_): No longer inline, to work around a
8730	porting problem to g++ 3.4.3 on Darwin 7.9.0, where g++ complained
8731	"warning: sorry: semantics of inline function static data `const
8732	unsigned char translate_table[262]' are wrong (you'll wind up with
8733	multiple copies)".
8734
8735	* lib/bbitset.h (struct bitset_vtable): Rename members not, and,
8736	or, xor to not_, and_, or_, and xor_, respectively.  This works
8737	around a bug in GCC 3.4.3 on Irix 6.5, which apparently has a
8738	random system header somewhere that includes the equivalent of
8739	<iso646.h>.
8740
8741	* tests/headers.at (AT_TEST_CPP_GUARD_H): Don't assume that "$CC
8742	-E" works; it apparently doesn't work with PathScale EKO Compiler
8743	Suite Version 2.0.
8744
87452006-01-30  Joel E. Denny  <jdenny@ces.clemson.edu>
8746
8747	During deterministic GLR operation, user actions should be able to
8748	influence the parse by changing yychar.  To make this easier to fix and
8749	to make glr.c easier to evolve in general, don't maintain yytoken in
8750	parallel with yychar; just compute yytoken when needed.
8751	* tests/glr-regression.at (Incorrect lookahead during deterministic
8752	GLR): Check that setting yychar in a user action has the intended
8753	effect.
8754	* data/glr.c (yyGLRStack): Remove yytokenp member.
8755	(yyclearin): Don't set *yytokenp.
8756	(yyprocessOneStack, yyreportSyntaxError, yyrecoverSyntaxError): Examine
8757	yychar rather than *yytokenp to determine the current lookahead.
8758	Compute yytoken locally when needed.
8759	(yyparse): Likewise.  Remove the local yytoken that yytokenp used to
8760	point to.
8761
8762	* doc/bison.texinfo (Bison Options): Remove stray sentence fragment
8763	after `--report' documentation.
8764
87652006-01-30  Paul Eggert  <eggert@cs.ucla.edu>
8766
8767	* src/parse-gram.y (grammar_declaration): Location of printer
8768	symbol is @1, not list->location.  Bug reported by twlevo.
8769	* tests/input.at (Incompatible Aliases): Adjust to above change.
8770
87712006-01-29  Paul Eggert  <eggert@cs.ucla.edu>
8772
8773	* tests/input.at (AT_CHECK_UNUSED_VALUES): Remove.  Instead, do
8774	all the test at once.  This makes the output easier to read in the
8775	normal case.
8776
8777	Fix a longstanding bug uncovered by bro-0.9a9/src/parse.y, which I
8778	got from <http://bro-ids.org/download.html>.  The bug is that
8779	when two actions appeared in succession, the second one was
8780	scanned before the first one was added to the grammar rule
8781	as a midrule action.  Bison then output the incorrect warning
8782	"parse.y:905.17-906.36: warning: unused value: $3".
8783	* src/parse-gram.y (BRACED_CODE, action): These are no longer
8784	associated with a value.
8785	(rhs): Don't invoke grammar_current_rule_action_append.
8786	(action): Invoke it here instead.
8787	* src/reader.c (grammar_midrule_action): Now extern.
8788	(grammar_current_rule_action_append): Don't invoke
8789	grammar_midrule_action; that is now the scanner's job.
8790	* src/reader.h (last_string, last_braced_code_loc):
8791	(grammar_midrule_action): New decls.
8792	* src/scan-gram.l (last_string): Now extern, sigh.
8793	(last_braced_code_loc): New extern variable.
8794	(<INITIAL>"{"): Invoke grammar_midrule_action if the current
8795	rule already has an action.
8796	(<SC_BRACED_CODE>"}"): Set last_braced_code_loc before returning.
8797	* tests/input.at (AT_CHECK_UNUSED_VALUES):
8798	Add some tests to check that the above changes fixed the bug.
8799
88002006-01-27  Paul Eggert  <eggert@cs.ucla.edu>
8801
8802	* src/reader.c (symbol_should_be_used): Renamed from symbol_typed_p.
8803	All used changed.  Check whether the symbol has a destructor,
8804	not whether it is typed.
8805	* tests/input.at (AT_CHECK_UNUSED_VALUES): Add a destructor, so
8806	that the values are still reported as unused.  All line numbers
8807	adjusted.
8808
88092006-01-23  Paul Eggert  <eggert@cs.ucla.edu>
8810
8811	Work around a bug in bro 0.8, which underparenthesizes its
8812	definition of YYLLOC_DEFAULT.
8813	* data/glr.c: Change all uses of YYLLOC_DEFAULT to parenthesize
8814	their arguments.
8815	* data/lalr1.cc: Likewise.
8816	* data/yacc.cc: Likewise.
8817
88182006-01-22  Paul Eggert  <eggert@cs.ucla.edu>
8819
8820	Work around a bug in Pike 7.0, and give the Pike folks a
8821	better way to override the usual int widths.
8822	* data/yacc.c (b4_int_type): Use yytype_uint8, etc., so that the
8823	user can override the types.
8824	(short): #undef, to work around a bug in Pike 7.0.
8825	(yytype_uint8, yytype_int8, yytype_uint16, yytype_int16): New types.
8826	(union yyalloc.yyss): Use yytype_int16 rather than short.
8827	All uses changed.
8828	(yysigned_char): Remove.
8829	* src/parse-gram.y (YYTYPE_UINT8, YYTYPE_INT8, YYTYPE_UINT16):
8830	(YYTYPE_INT16): New macros, to test the new facility in yacc.c.
8831	* tests/regression.at (Web2c Actions): Adjust to above changes.
8832
8833	* src/reader.c (check_and_convert_grammar): New function.
8834	(reader): Close the input file even if something went wrong during
8835	parsing.  Minor file descriptor leak reported by twlevo.
8836
8837	* src/assoc.c (assoc_to_string): Use a default: abort (); case
8838	to pacify gcc -Wswitch-default.
8839	* src/scan-gram.l (adjust_location): Use a default: break; case
8840	to pacify gcc -Wswitch-default.
8841	* src/scan-skel.h (skel_get_lineno, skel_get_in, skel_get_out):
8842	(skel_get_leng, skel_get_text, skel_set_lineno, skel_set_in):
8843	(skel_set_out, skel_get_debug, skel_set_debug, skel_lex_destroy):
8844	Move these decls to scan-skel.l, since they don't need to be
8845	visible elsewhere.
8846	* src/scan-skel.l: Accept the above decls.
8847	(skel_lex): New decl, to pacify GCC when unpatched flex 2.5.31
8848	is used.
8849
88502006-01-21  Paul Eggert  <eggert@cs.ucla.edu>
8851
8852	* Makefile.cfg (local-checks-to-skip): Add changelog-check,
8853	since we don't want to insist on a version number at the start
8854	of the changelog every time.
8855	* Makefile.maint: Sync from coreutils a bit better.
8856	(sc_trailing_blank): Renamed from sc_trailing_space.
8857	All uses changed.
8858	(sc_no_if_have_config_h, sc_require_config_h):
8859	(sc_prohibit_assert_without_use): New rules.
8860	(sc_obsolete_symbols): Don't catch Makefile.maint itself.
8861	(sc_dd_max_sym_length): Fix leading spaces in rule.
8862	(sc_system_h_headers): Prefix with @.
8863	(sc_useless_cpp_parens, m4-check): Output line numbers.
8864	(changelog-check): Allow version only in head.
8865	* data/c.m4: Use "defined FOO" instead of "defined (FOO)", to
8866	satisfy new Makefile.maint rule.
8867	* data/glr.c: Likewise.
8868	* data/glr.cc: Likewise.
8869	* data/lalr1.cc: Likewise.
8870	* data/yacc.c: Likewise.
8871	* lib/ebitsetv.c: Likewise.
8872	* lib/lbitset.c: Likewise.
8873	* lib/subpipe.c: Likewise.
8874	* lib/timevar.c: Likewise.
8875	* src/system.h: Likewise.
8876	* data/yacc.c (YYSTYPE): Don't generate trailing spaces in output.
8877	* djgpp/Makefile.maint: Add copyright notice.
8878	* djgpp/README.in: Likewise.
8879	* djgpp/config.bat: Likewise.
8880	* djgpp/config.site: Likewise.
8881	* djgpp/config_h.sed: Likewise.
8882	* djgpp/djunpack.bat: Likewise.
8883	* djgpp/config.sed: Fix copyright notice to match standard format.
8884	* djgpp/subpipe.h: Likewise.
8885	* lib/bitsetv-print.c: Likewise.
8886	* lib/bitsetv.c: Likewise.
8887	* lib/subpipe.h: Likewise.
8888	* lib/timevar.c: Likewise.
8889	* lib/timevar.h: Likewise.
8890	* djgpp/subpipe.c: Use standard recipe for config.h.
8891	* lib/abitset.c: Likewise.
8892	* lib/bitset.c: Likewise.
8893	* lib/bitset_stats.c: Likewise.
8894	* lib/bitsetv-print.c: Likewise.
8895	* lib/bitsetv.c: Likewise.
8896	* lib/ebitsetv.c: Likewise.
8897	* lib/get-errno.c: Likewise.
8898	* lib/lbitset.c: Likewise.
8899	* lib/subpipe.c: Likewise.
8900	* lib/timevar.c: Likewise.
8901	* lib/vbitset.c: Likewise.
8902	* tests/local.at: Likewise.
8903	* src/scan-gram.l: Don't include verify.h, since system.h does
8904	that for us.
8905	* .x-sc_require_config_h: New file.
8906	* .x-sc_unmarked_diagnostics: New file.
8907
89082006-01-20  Paul Eggert  <eggert@cs.ucla.edu>
8909
8910	Be a bit more systematic about using 'abort'.
8911	* lib/abitset.c (abitset_test): Remove ATTRIBUTE_UNUSED; not needed.
8912	* lib/bitset.c (bitset_bytes, bitset_init, bitset_op4_cmp):
8913	Put 'default: abort ();' before some other case, to satisfy older
8914	pedantic compilers.
8915	* lib/bitset_stats.c (bitset_stats_init): Likewise.
8916	* lib/ebitset.c (ebitset_elt_find, ebitset_op3_cmp): Likewise.
8917	* lib/lbitset.c (lbitset_elt_find, lbitset_op3_cmp): Likewise.
8918	* src/conflicts.c (resolve_sr_conflict): Likewise.
8919	* src/vcg.c (get_color_str, get_textmode_str, get_shape_str):
8920	(get_decision_str, get_orientation_str, get_node_alignment_str):
8921	(get_arrow_mode_str, get_crossing_type_str, get_view_str):
8922	(get_linestyle_str, get_arrowstyle_str): Likewise.
8923	* src/conflicts.c (resolve_sr_conflict):
8924	Use a default case rather than one for the one remaining enum
8925	value, to catch invalid enum values as well.
8926	* src/lalr.c (set_goto_map, map_goto):
8927	Prefer "assert (FOO);" to "if (!FOO) abort ();".
8928	* src/nullable.c (nullable_compute, token_definitions_output):
8929	Likewise.
8930	* src/reader.c (packgram, reader): Likewise.
8931	* src/state.c (transitions_to, state_new, state_reduction_find):
8932	Likewise.
8933	* src/symtab.c (symbol_user_token_number_set, symbol_make_alias):
8934	(symbol_pack): Likewise.
8935	* src/tables.c (conflict_row, pack_vector): Likewise.
8936	* src/scan-skel.l (QPUTS): Remove unnecessary parens.
8937	(BASE_QPUTS, "@output ".*\n): Remove unnecessary asserts.
8938	* src/system.h: Don't include <assert.h>.
8939	(assert): New macro.
8940
8941	* doc/bison.texinfo (Prologue, Rules, Actions, Union Decl, Action Decl):
8942	(Destructor Decl, Parser Function, Pure Calling):
8943	Describe rules for braces inside C code more carefully.
8944
89452006-01-19  Paul Eggert  <eggert@cs.ucla.edu>
8946
8947	Fix some porting glitches found by Nelson H. F. Beebe.
8948	* lib/abitset.c (abitset_resize): Rewrite to avoid warnings from
8949	compilers that don't understand that abort () does not return.
8950	* src/state.c (transitions_to): Likewise.
8951	* m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check
8952	that '#include <cstdlib>' works.
8953	* src/system.h (INT8_MIN, INT16_MIN, INT32_MIN, INT8_MAX):
8954	(INT16_MAX, UINT8_MAX, INT32_MAX, UINT16_MAX, UINT32_MAX):
8955	#undef if ! defined __STDC_VERSION__ || __STDC_VERSION__ < 199901,
8956	for the benefit of some pre-C99 compilers.
8957
8958	* bootstrap: Undo changes to gnulib files that autoreconf made.
8959
8960	Minor fixups to get 'make maintainer-check' to work.
8961	* configure.ac: Don't use -Wnested-externs, as it's incompatible
8962	with the new verify.h implementation.
8963	* data/c.m4 (b4_yy_symbol_print_generate): YYUSE (yyoutput).
8964	* data/glr.c (YYUSE): Depend on __GNUC__ as well.
8965	* data/yacc.c (YYUSE): Likewise.
8966	* data/lalr1.cc (yysyntax_error_): YYUSE (yystate).
8967	* lib/subpipe.c (end_of_output_subpipe): The args are unused.
8968	* src/parse-gram.y (declaration): Don't pass a string constant
8969	to a function that expects char *, since GCC might complain
8970	about the constant value.
8971	* src/reader.c (symbol_typed_p): Add parens to pacify GCC.
8972	* tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): #undef yylloc and yylval
8973	before #defining them.
8974	* tests/glr-regression.at
8975	(Incorrectly initialized location for empty right-hand side in GLR):
8976	In yyerror, use the msg arg.
8977	(Corrupted semantic options if user action cuts parse):
8978	(Incorrect lookahead during deterministic GLR):
8979	(Incorrect lookahead during nondeterministic GLR):
8980	Don't name a local var 'index'; it shadows string.h's 'index'.
8981
89822006-01-19  Akim Demaille  <akim@epita.fr>
8983
8984	* tests/calc.at (_AT_DATA_CALC_Y): Initialize the whole initial
8985	location, not just parts of it.
8986
89872006-01-18  Paul Eggert  <eggert@cs.ucla.edu>
8988
8989	* NEWS: Document the fact that multiple %unions are now allowed.
8990	* doc/bison.texinfo (Union Decl): Likewise.
8991	* TODO: This feature is now implemented, so remove it from
8992	the wishlist.
8993
8994	* Makefile.maint: Merge with coreutils Makefile.maint.
8995	(CVS_LIST): Use build-aux version if available.
8996	(VERSION_REGEXP): New macro.
8997	(syntax-check-rules): Add sc_no_if_have_config_h,
8998	sc_prohibit_assert_without_use, sc_require_config_h,
8999	sc_useless_cpp_parens.
9000	(sc_obsolete_symbols): Check for O_NDELAY.
9001	(sc_dd_max_sym_length): Track coreutils.
9002	(sc_unmarked_diagnostics): Look in all files, not just *.c.
9003	(sc_useless_cpp_parens): New rule.
9004	(news-date-check): Look for version or today's date.
9005	(changelog-check): Don't require version number near head.
9006	(copyright-check): Use current year instead of hardwiring 2005.
9007	(my-distcheck): Depend on $(release_archive_dir)/$(prev-tgz).
9008	(announcement): Add --gpg-key-ID.
9009
9010	* djgpp/config.sed: Add copyright notice, and replace "filesystem"
9011	with "file system".
9012
9013	Avoid undefined behavior that addressed just before the start of an
9014	array.  Problem reported by twlevo.
9015	* src/reader.c (packgram): Prepend a new sentinel before ritem.
9016	* src/lalr.c (build_relations): Rely on new sentinel.
9017	* src/gram.c (gram_free): Adjust to new sentinel.
9018
90192006-01-12  Joel E. Denny  <jdenny@ces.clemson.edu>
9020
9021	* data/glr.c (yyGLRStateSet): Rename yylookaheadStatuses to
9022	yylookaheadNeeds.  All uses updated.
9023	(yysplitStack): Rename local yynewLookaheadStatuses to
9024	yynewLookaheadNeeds.
9025	* data/glr-regression.at (Incorrect lookahead during nondeterministic
9026	GLR): In comments, change `lookahead status' to `lookahead need'.
9027
90282006-01-11  Paul Hilfinger  <hilfingr@tully.CS.Berkeley.EDU>
9029
9030	* data/glr.c (yysplitStack): A little stylistic rewrite.
9031
90322006-01-11  Paul Hilfinger  <hilfingr@tully.CS.Berkeley.EDU>
9033
9034	* data/glr.c (yyaddDeferredAction): Flesh out the comment.
9035
90362006-01-11  Joel E. Denny  <jdenny@ces.clemson.edu>
9037
9038	* doc/bison.texinfo: Fix some typos.
9039	(GLR Semantic Actions): New subsection discussing special
9040	considerations because GLR semantic actions might be deferred.
9041	(Actions): Mention look-ahead usage of yylval.
9042	(Actions and Locations): Mention look-ahead usage of yylloc.
9043	(Special Features for Use in Actions): Add YYEOF entry and mention it
9044	in the yychar entry.
9045	In the yychar entry, remove mention of the local yychar case (pure
9046	parser) since this is irrelevant information when writing semantic
9047	actions and since it's already discussed in `Table of Symbols' where
9048	yychar is otherwise described as an external variable.
9049	In the yychar entry, don't call it the `current' look-ahead since it
9050	isn't when semantic actions are deferred.
9051	In the yychar and yyclearin entries, add note about deferred semantic
9052	actions.
9053	Add yylloc and yylval entries discussing look-ahead usage.
9054	(Look-Ahead Tokens): When discussing yychar, don't call it the
9055	`current' look-ahead, and do mention yylval and yylloc.
9056	(Error Recovery): Cross-reference `Action Features' when mentioning
9057	yyclearin.
9058	(Table of Symbols): In the yychar entry, don't call it the `current'
9059	look-ahead.
9060	In the yylloc and yylval entries, mention look-ahead usage.
9061
90622006-01-08  Joel E. Denny  <jdenny@ces.clemson.edu>
9063
9064	* tests/glr-regression.at: Update copyright year to 2006.
9065
90662006-01-06  Joel E. Denny  <jdenny@ces.clemson.edu>
9067
9068	* data/glr.c (yyGLRStateSet): Add yybool* yylookaheadStatuses member to
9069	use during nondeterministic operation to track which stacks have
9070	actually needed the current lookahead.
9071	(yyinitStateSet, yyfreeStateSet, yyremoveDeletes, yysplitStack):
9072	Allocate, deallocate, resize, and otherwise shuffle space for
9073	yylookaheadStatuses in parallel with yystates member of yyGLRStateSet.
9074	(yysplitStack, yyprocessOneStack, yyparse): Set lookahead status
9075	appropriately during nondeterministic operation.
9076	(yySemanticOption): Add int yyrawchar, YYSTYPE yyval, and YYLTYPE yyloc
9077	members to store the current lookahead to be used by the deferred
9078	user action.
9079	(yyaddDeferredAction): Add size_t yyk parameter specifying the stack
9080	from which the RHS is taken.  Set the lookahead members of the new
9081	yySemanticOption according to the lookahead status for stack yyk.
9082	(yyglrShiftDefer, yyglrReduce): Pass yyk parameter on to
9083	yyaddDeferredAction.
9084	(yyresolveAction): Set yychar, yylval, and yylloc to the lookahead
9085	members of yySemanticOption before invoking yyuserAction, and then set
9086	them back to their current values afterward.
9087	(yyparse): Set yychar = YYEMPTY where yytoken = YYEMPTY.
9088	(yyreportAmbiguity): Add /*ARGSUSED*/ to pacify lint.
9089	* tests/glr-regression.at: Remove `.' from the ends of recent test case
9090	titles for consistency.
9091	(Leaked merged semantic value if user action cuts parse): In order to
9092	suppress lint warnings, use arguments in merge function, and assign
9093	char value < 128 in main.
9094	(Incorrect lookahead during deterministic GLR): New test case.
9095	(Incorrect lookahead during nondeterministic GLR): New test case.
9096
90972006-01-06  Joel E. Denny  <jdenny@ces.clemson.edu>
9098
9099	* data/c.m4 (b4_yy_symbol_print_generate): In yy_symbol_print, accept
9100	!yyvaluep as signal that no semantic value is available to print.
9101	* data/glr.c (yydestroyGLRState): If state is not resolved, don't try
9102	to print a semantic value.
9103
91042006-01-06  Joel E. Denny  <jdenny@ces.clemson.edu>
9105
9106	* tests/glr-regression.at: For consistency with my newer test cases,
9107	don't thank myself.
9108
91092006-01-05  Joel E. Denny  <jdenny@ces.clemson.edu>
9110
9111	* data/glr.c (yyresolveValue): When merging semantic options, if at
9112	least one user action succeeds but a later one cuts the parse, then
9113	destroy the semantic value before returning rather than leaking it.
9114	(yyresolveStates): If a user action cuts the parse and thus
9115	yyresolveValue fails, ignore the (unset) semantic value rather than
9116	corrupting the yyGLRState, and empty the semantic options list since
9117	the user actions should have called all necessary destructors.
9118	Simplify code with YYCHK.
9119	* tests/glr-regression.at (Corrupted semantic options if user action
9120	cuts parse): New test case.
9121	(Undesirable destructors if user action cuts parse): New test case.
9122	Before applying any of this patch, this test case never actually failed
9123	for me... but only because the corrupted semantic options usually
9124	masked this bug.
9125	(Leaked merged semantic value if user action cuts parse): New test
9126	case.
9127
91282006-01-05  Akim Demaille  <akim@epita.fr>
9129
9130	* src/reader.c, src/symlist.h, src/symlist.c: s/mid_rule/midrule/.
9131
91322006-01-04  Paul Eggert  <eggert@cs.ucla.edu>
9133
9134	* data/c.m4 (b4_c_modern): New macro, with a new provision for
9135	_MSC_VER.  Problem reported by Cenzato Marco.
9136	(b4_c_function_def): Use it.
9137	* data/yacc.c (YYMODERN_C): Remove.  All uses replaced by
9138	b4_c_modern.
9139	(yystrlen, yystpcpy, yyparse): Use b4_c_function... macros rather
9140	than rolling our own.
9141
91422006-01-04  Akim Demaille  <akim@epita.fr>
9143
9144	Also warn about non-used mid-rule values.
9145	* src/symlist.h, src/symlist.c (symbol_list): Add a mid_rule
9146	member.
9147	(symbol_list_new): Adjust.
9148	* src/reader.c (symbol_typed_p): New.
9149	(grammar_rule_check): Use it.
9150	(grammar_midrule_action): Bind a mid-rule LHS to its rule.
9151	Check its rule.
9152	* tests/input.at (AT_CHECK_UNUSED_VALUES): New.
9153	Use it.
9154	* tests/actions.at (Exotic Dollars): Adjust.
9155
91562006-01-04  Akim Demaille  <akim@epita.fr>
9157
9158	* src/reader.c (grammar_midrule_action): If $$ is set in a
9159	mid-rule, move the `used' bit to its lhs.
9160	* tests/input.at (Unused values): New.
9161	* tests/actions.at (Exotic Dollars): Adjust: exp is not typed.
9162
91632006-01-03  Paul Eggert  <eggert@cs.ucla.edu>
9164
9165	* doc/bison.texinfo (Bison Options): Say more accurately what
9166	--yacc does.
9167	* src/parse-gram.y (rules_or_grammar_declaration): Don't complain
9168	about declarations in the grammar when in Yacc mode, as POSIX does
9169	not require a diagnostic when the grammar uses extensions.
9170
9171	* src/reduce.c (reduce_grammar): Remove unnecessary cast to bool.
9172
9173	Warn about dubious constructions like "%token T T".
9174	Reported by twlevo.
9175	* src/symtab.h (struct symbol.declared): New member.
9176	* src/symtab.c (symbol_new): Initialize it to false.
9177	(symbol_class_set): New arg DECLARING, specifying whether
9178	this is a declaration that we want to warn about, if there
9179	is more than one of them.  All uses changed.
9180
9181	* data/glr.c, data/glr.cc, data/lalr1.cc, data/yacc.c:
9182	Allow multiple %union directives, whose contents concatenate.
9183	* src/parse-gram.y (grammar_declaration): Likewise.
9184	Use muscle_code_grow, so that we don't need stype_line any more.
9185	All uses changed.
9186
9187	* src/muscle_tab.c (muscle_grow): Fix comment.
9188
9189	* ChangeLog, data/c.m4, data/glr.c, data/glr.cc, data/location.cc:
9190	* data/yacc.c, src/getargs.c, src/output.c, tests/cxx-type.at:
9191	Update copyright year to 2006.
9192
91932006-01-03  Akim Demaille  <akim@epita.fr>
9194
9195	Have glr.cc pass (some of) the calc.at tests.
9196	* data/glr.cc (b4_parse_param_orig): New.
9197	(b4_parse_param): Improve its definition, and bound it more
9198	clearly in the skeleton.
9199	(b4_epilogue): Append, instead of prepending, in order to keep
9200	#line consistency.
9201	Simplify the generation of auxiliary functions: locations and
9202	purity are mandated.
9203	(b4_global_tokens_and_yystype): Honor it.
9204	* data/location.cc (c++.m4): Don't include it.
9205	* tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Define AT_GLR_CC_IF
9206	and AT_SKEL_CC_IF.
9207	* tests/calc.at (AT_CHECK_CALC): Rely on AT_SKEL_CC_IF instead of
9208	AT_LALR1_CC_IF.
9209	Be sure to initialize the first position's filename.
9210	(AT_CHECK_CALC_LALR1_CC): Add %location and %defines, they are
9211	mandated anyway.
9212	(AT_CHECK_CALC_GLR_CC): New.
9213	Use it to exercise glr.cc as a lalr1.cc drop-in replacement.
9214
92152006-01-02  Akim Demaille  <akim@epita.fr>
9216
9217	* src/output.c (output_skeleton): Don't hard wire the inclusion of
9218	c.m4.
9219	* data/c++.m4, data/glr.c, data/yacc.c: Include c.m4.
9220	* data/glr.cc: Do not include stack.hh.
9221
92222006-01-02  Joel E. Denny  <jdenny@ces.clemson.edu>
9223
9224	* data/glr.c: Reformat whitespace with tabs.
9225	(b4_lpure_formals): Remove this unused m4 macro.
9226	* tests/cxx-type.at: Reformat whitespace with tabs.
9227	(_AT_TEST_GLR_CXXTYPES): In union Node, rename node_info to nodeInfo
9228	since it's a member.  Rename type to isNterm for clarity.
9229
92302005-12-29  Akim  <akim@sulaco.local>
9231
9232	Let glr.cc catch up with symbol_value_print.
9233	* data/glr.cc (b4_yysymprint_generate): Replace by...
9234	(b4_yy_symbol_print_generate): this.
9235	(yy_symbol_print, yy_symbol_value_print): Declare them.
9236
92372005-12-28  Paul Eggert  <eggert@cs.ucla.edu>
9238
9239	* src/location.h (boundary): Note that a line or column equal
9240	to INT_MAX indicates an overflow.
9241	* src/scan-gram.l: Include verify.h.  Don't include get-errno.h.
9242	(rule_length_overflow, increment_rule_length, add_column_width):
9243	New functions.
9244	(<INITIAL>{id}, <SC_ESCAPED_STRING>"\"", <SC_ESCAPED_CHARACTER>"'"):
9245	(<SC_BRACED_CODE>"}"):
9246	Use increment_rule_length rather than incrementing it by hand.
9247	(adjust_location, handle_syncline): Diagnose overflow.
9248	(handle_action_dollar, handle_action_at):
9249	Fix bug with monstrosities like $-2147483648.
9250	Remove now-unnecessary checks.
9251	(scan_integer): Verify assumptions and remove now-unnecessary checks.
9252	(convert_ucn_to_byte): Verify assumptions.
9253	(handle_syncline): New arg LOC.  All callers changed.
9254	Don't store through a value derived from char const * pointer.
9255
9256	* src/reader.c (grammar_rule_check): Rewrite slightly to avoid
9257	GCC warnings.
9258
92592005-12-27  Paul Eggert  <eggert@cs.ucla.edu>
9260
9261	* src/reader.c (grammar_midrule_action, grammar_symbol_append):
9262	Remove unnecessary forward static decls.
9263
92642005-12-27  Akim Demaille  <akim@epita.fr>
9265
9266	* src/reader.c (grammar_current_rule_check): Also check that $$
9267	is used.
9268	Take the rule to check as argument, hence rename as...
9269	(grammar_rule_check): this.
9270	* src/reader.h, src/reader.c (grammar_rule_begin, grammar_rule_end):
9271	Rename as...
9272	(grammar_rule_begin, grammar_rule_end): these, for consistency.
9273	(grammar_midrule_action, grammar_symbol_append): Now static.
9274	* tests/torture.at (input): Don't rely on the default action
9275	being always performed.
9276	* tests/calc.at: "Set" $$ even when the action is "cut" with
9277	YYERROR or other.
9278	* tests/actions.at (Exotic Dollars): Instead of using unused
9279	values, check that the warning is issued.
9280
92812005-12-22  Paul Eggert  <eggert@cs.ucla.edu>
9282
9283	* NEWS: Improve wording for unused-value warnings.
9284
92852005-12-22  Akim Demaille  <akim@epita.fr>
9286
9287	* data/lalr1.cc, data/yacc.c, data/glr.c, data/c.m4
9288	(b4_yysymprint_generate): Rename as...
9289	(b4_yy_symbol_print_generate): this.
9290	Generate yy_symbol_print instead of yysymprint.
9291	Generate also yy_symbol_value_print, and use it.
9292
92932005-12-22  Akim Demaille  <akim@epita.fr>
9294
9295	* NEWS: Warn about unused values.
9296	* src/symlist.h, src/symlist.c (symbol_list, symbol_list_new): Add
9297	a `used' member.
9298	(symbol_list_n_get, symbol_list_n_used_set): New.
9299	(symbol_list_n_type_name_get): Use symbol_list_n_get.
9300	* src/scan-gram.l (handle_action_dollar): Flag used symbols.
9301	* src/reader.c (grammar_current_rule_check): Check that values are
9302	used.
9303	* src/symtab.c (symbol_print): Accept 0.
9304	* tests/existing.at: Remove the type information.
9305	Empty the actions.
9306	Remove useless actions (beware of mid-rule actions: perl -000
9307	-pi -e 's/\s*\{\}(?=[\n\s]*[|;])//g').
9308	* tests/actions.at (Exotic Dollars): Use unused values.
9309	* tests/calc.at: Likewise.
9310	* tests/glr-regression.at (No users destructors if stack 0 deleted):
9311	Likewise.
9312
9313	* src/gram.c (rule_useful_p, rule_never_reduced_p): Use
9314	rule_useful_p.
9315
93162005-12-21  Paul Eggert  <eggert@cs.ucla.edu>
9317
9318	Undo 2005-12-01 tentative license wording change.  The wording is
9319	still being reviewed by the lawyers, and we don't want to wait for
9320	them before publishing a test release.  For now, revert to the
9321	previous wording.
9322	* NEWS: Undo 2005-12-01 change.
9323	* data/glr.c: Revert to previous license wording.
9324	* data/glr.cc: Likewise.
9325	* data/lalr1.cc: Likewise.
9326	* data/location.cc: Likewise.
9327	* data/yacc.c: Likewise.
9328
9329	* NEWS: Reword %destructor vs YYABORT etc.
9330	* data/glr.c: Use American spacing, for consistency.
9331	* data/glr.cc: Likewise.
9332	* data/lalr1.cc: Likewise.
9333	* data/yacc.c: Likewise.
9334	* data/yacc.c: Reformat comments slightly.
9335	* doc/bison.texinfo: Replace "non-" with "non" when that makes sense,
9336	for consistency.  Fix some spelling errors and reword recently-included
9337	text slightly.
9338	* tests/cxx-type.at: Cast results of malloc, for C++.
9339
93402005-12-21  Joel E. Denny  <address@hidden>
9341
9342	* tests/cxx-type.at: Construct a tree, count the parents of shared
9343	nodes, and free each node once and only once.  Previously, the memory
9344	for semantic values was leaked instead.
9345
93462005-12-21  Joel E. Denny  <address@hidden>
9347
9348	* data/glr.c (struct yyGLRStack): If pure, add yyval and yyloc members.
9349	(yylval, yylloc): If pure, #define to yystackp->yyval and
9350	yystackp->yyloc similar to yychar and yynerrs.
9351	(yyparse): If pure, remove local yylval and yylloc. Add local
9352	yystackp to accommodate pure definitions of yylval and yylloc.
9353	(b4_lex_param, b4_lyyerror_args, b4_lpure_args): If pure, change
9354	yylvalp and yyllocp to &yylval and &yylloc.
9355	(nerrs, char, lval, lloc): If pure, add #define's for b4_prefix[]
9356	namespace. Previously, nerrs and char were missing, but lval and lloc
9357	weren't necessary.
9358	(yyprocessOneStack, yyreportSyntaxError, yyrecoverSyntaxError): Remove
9359	yylvalp and yyllocp parameters since, if pure, these are now always
9360	accessible through yystackp.  If not pure, they are still accessible
9361	globally.
9362	* data/glr.c, data/yacc.c (YYLLOC_DEFAULT): Change `if (N)' to
9363	`if (YYID (N))' to pacify lint.
9364
93652005-12-21  Akim Demaille  <akim@epita.fr>
9366
9367	YYACCEPT, YYERROR, and YYABORT, as user actions, should not
9368	destroy the RHS symbols of a rule.
9369	* data/yacc.c (yylen): Initialize to 0.
9370	Keep its value to the number of items to possibly shift.
9371	In particular, a regular successful parse that ends on YYFINAL by
9372	a (internal) YYACCEPT must not have yylen != 0.
9373	(yyerrorlab, yyreturn): Pop the RHS.
9374	Reorder a bit to emphasize the `shifting' bits of code.
9375	(YYPOPSTACK): Now accept a number of items to pop.
9376	* data/lalr1.cc: Likewise.
9377	* data/glr.c: Formatting changes.
9378	Use goto instead of fall through.
9379	* doc/bison.texinfo (Destructor Decl): Complete.
9380
93812005-12-20  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
9382
9383	* Makefile.am: DJGPP specific files added to EXTRA_DIST.
9384	* djgpp/Makefile.maint: Fix PACKAGE variable computation.
9385	* djgpp/config.bat: Replace every occurrence of the file name
9386	scan-gram-c.c with c-scan-gram.c. The same for scan-skel-c.c with
9387	c-scan-skel.c to conform with the 8.3 file name restriction on MSDOS.
9388	* djgpp/config.sed: Replace every occurrence of the file name
9389	scan-gram-c.c with c-scan-gram.c. The same for scan-skel-c.c with
9390	c-scan-skel.c to conform with the 8.3 file name restriction on MSDOS.
9391	* djgpp/djunpack.bat: DJGPP specific file.
9392	* djgpp/fnchange.lst: DJGPP specific file.
9393	* djgpp/README.in: Add new information about how to unpack the bison
9394	source on MSDOS and other systems which have 8.3 file name restrictions
9395	using djunpack.bat and fnchange.lst.
9396
93972005-12-12  Paul Eggert  <eggert@cs.ucla.edu>
9398
9399	* bootstrap (build_cvs_prefix): Remove; unused.
9400	(CVS_PREFIX): Adjust to yesterday's Savannah reorganization
9401	when getting gnulib.
9402
94032005-12-12  "Joel E. Denny" <jdenny@ces.clemson.edu>
9404
9405	* data/glr.c: Reorder typedef declarations for structs to match order
9406	of struct declarations.
9407	Rename yystack everywhere to yystackp except in yyparse where it's not
9408	a pointer.
9409	(yyglrShift): Change parameter YYSTYPE yysval to YYSTYPE* yyvalp for
9410	consistency.
9411	(yyis_table_ninf): Change 0 to YYID (0) to pacify lint.
9412	(yyreportSyntaxError): Add /*ARGSUSED*/ to pacify lint.
9413	(yyparse): Change while (yytrue) to while ( YYID (yytrue)) to pacify
9414	lint.
9415
94162005-12-09  Paul Eggert  <eggert@cs.ucla.edu>
9417
9418	* tests/sets.at (Accept): Fix typos in regular expression used to
9419	sed out the final state number.
9420
9421	Work around portability problem on Solaris 10: flex-generated
9422	files include <stdio.h> before <config.h>, which messes up
9423	because the latter defines __EXTENSIONS__.  Address the problem
9424	by creating two new little files that include <config.h> first,
9425	then include the flex-generated files.  Rewrite everyone else
9426	to include <config.h> first, as well.
9427	* lib/timevar.c: Always include "config.h".
9428	* src/Makefile.am (bison_SOURCES): Replace scan-gram.l with
9429	scan-gram-c.c, and scan-skel.l with scan-skel-c.c.
9430	(EXTRA_bison_SOURCES): New macro.
9431	* src/scan-gram-c.c, src/scan-skel-c.c: New files.
9432	* src/system.h: Don't include config.h.
9433	* src/LR0.c: Include <config.h> first.
9434	* src/assoc.c: Likewise.
9435	* src/closure.c: Likewise.
9436	* src/complain.c: Likewise.
9437	* src/conflicts.c: Likewise.
9438	* src/derives.c: Likewise.
9439	* src/files.c: Likewise.
9440	* src/getargs.c: Likewise.
9441	* src/gram.c: Likewise.
9442	* src/lalr.c: Likewise.
9443	* src/location.c: Likewise.
9444	* src/main.c: Likewise.
9445	* src/muscle_tab.c: Likewise.
9446	* src/nullable.c: Likewise.
9447	* src/output.c: Likewise.
9448	* src/parse-gram.y: Likewise.
9449	* src/print.c: Likewise.
9450	* src/print_graph.c: Likewise.
9451	* src/reader.c: Likewise.
9452	* src/reduce.c: Likewise.
9453	* src/relation.c: Likewise.
9454	* src/state.c: Likewise.
9455	* src/symlist.c: Likewise.
9456	* src/symtab.c: Likewise.
9457	* src/tables.c: Likewise.
9458	* src/uniqstr.c: Likewise.
9459	* src/vcg.c: Likewise.
9460
9461	* src/parse-gram.y: Fix minor problems uncovered by lint.
9462	(current_lhs, current_lhs_location): Now static.
9463	(current_assoc): Remove unused variable.
9464
9465	Cleanups so that Bison-generated parsers have less lint.
9466	* data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate):
9467	Prepend /*ARGSUSED*/, for lint's sake.
9468	* data/glr.c (YYUSE): Properly parenthesize, and use an alternate
9469	definition if 'lint' is defined.
9470	(YYID): New macro (or function, if lint).
9471	All uses of /*CONSTCOND*/0 replaced by YYID(0).
9472	* data/yacc.c: Likewise.
9473	* data/glr.c (yyuserAction, yyuserMerge, yy_reduce_print):
9474	(yyrecoverSyntaxError): Prepend /*ARGSUSED*/.
9475	* data/glr.cc (YYLLOC_DEFAULT): Omit /*CONSTCOND*/ since this code
9476	is C++ only.
9477	* data/lalr1.cc (YYUSE): Just use a cast, since this code is C++ only.
9478	* data/yacc.c (YYSTACK_FREE) [defined YYSTACK_ALLOC]:
9479	Use YYID(0) rather than 0, for lint.
9480	(yystrlen): Rewrite to avoid lint warning about ptrdiff_t overflow.
9481	(yysyntax_error): Rewrite to avoid lint warnings about parenthesization.
9482
94832005-12-07  Paul Eggert  <eggert@cs.ucla.edu>
9484
9485	* tests/glr-regression.at
9486	(Improper handling of embedded actions and dollar(-N) in GLR parsers):
9487	Close memory leak reported by twlevo.
9488
94892005-12-06  "Joel E. Denny" <jdenny@ces.clemson.edu>
9490
9491	* data/glr.c (yyprocessOneStack, yyparse): Synchronize the shift for
9492	all stacks.
9493	(yyparse): Iterate another stack in order to call user destructors.
9494	* tests/glr-regression.at (No users destructors if stack 0 deleted):
9495	New test case.
9496	(Duplicated user destructor for lookahead): This test now is expected
9497	to succeed.
9498
94992005-12-01  Paul Eggert  <eggert@cs.ucla.edu>
9500
9501	* NEWS: Document the following change.
9502	* data/yacc.c: Say "parser skeleton" rather than "file", since
9503	it's no longer just a file.
9504	* data/glr.c: Grant a special exception for C GLR parsers, that
9505	reads like the already-existing exception for C LALR(1) parsers.
9506	* data/glr.cc: Likewise.
9507	* data/lalr1.cc: Likewise.
9508	* data/location.cc: Likewise.
9509	* data/yacc.c: Reword the "written by" statement to clarify that
9510	it was the parser skeleton, not the entire output file.
9511	* data/glr.c: Written by Paul Hilfinger.
9512	* data/glr.cc: Written by Akim Demaille.
9513	* data/lalr1.cc: Likewise.
9514
95152005-11-18  Paul Eggert  <eggert@cs.ucla.edu>
9516
9517	* data/yacc.c (yy_reduce_print, YY_REDUCE_PRINT):
9518	Fix typos in previous change that broke 'make check'.
9519	YY_REDUCE_PRINT cannot be a pseudo-varargs macro; that isn't
9520	supported in C.
9521	* tests/calc.at (_AT_CHECK_CALC,_AT_CHECK_CALC_ERROR):
9522	Don't check NUM-STDERR-LINES, since the output format is fluctuating.
9523	We can revert this once things settle down.
9524
9525	* src/conflicts.c (conflicts_print): Don't print file name twice
9526	when %expect fails because there were no conflicts.
9527	* doc/bison.texinfo (Expect Decl): Tighten up wording in previous
9528	change.
9529	* tests/conflicts.at (%expect not enough, %expect too much):
9530	(%expect with reduce conflicts): Adjust to new behavior.
9531
95322005-11-18  Akim Demaille  <akim@epita.fr>
9533
9534	* src/conflicts.c (conflicts_print): Unsatisfied %expectation are
9535	errors.
9536	* NEWS: Document this.
9537	* doc/bison.texinfo (Expect Decl): Likewise.
9538
95392005-11-16  Akim Demaille  <akim@epita.fr>
9540
9541	Generalize the display of semantic values and locations in traces.
9542	* data/glr.c (yy_reduce_print): Fix indices (again).
9543	* data/c++.m4 (b4_rhs_value, b4_rhs_location): Don't expect
9544	literal integers.
9545	* data/lalr1.cc (yyreduce_print): Rename as...
9546	(yy_reduce_print): this.
9547	Display values and locations.
9548	* data/yacc.c (yy_reduce_print): Likewise.
9549	(YY_REDUCE_PRINT): Adjust to pass the required arguments.
9550	(yysymprint): Move higher to be visible from yy_reduce_print).
9551	(yyparse): Adjust.
9552	* tests/calc.at: Adjust the expected length of the traces.
9553
95542005-11-14  Akim Demaille  <akim@epita.fr>
9555
9556	* data/glr.c (yy_reduce_print): The loop was quite wrong: type are
9557	from 1 to N, while values and location start at 0.
9558	(b4_rhs_location, b4_rhs_value): Add parens around $1 and $2.
9559
95602005-11-14  Akim Demaille  <akim@epita.fr>
9561
9562	* data/glr.c (yy_reduce_print): Fix the $ number.
9563
95642005-11-14  Akim Demaille  <akim@epita.fr>
9565
9566	"Use" parse parameters.
9567	* data/c.m4 (b4_parse_param_for, b4_parse_param_use): New.
9568	* data/glr.c, data/glr.cc: Use them.
9569	* data/glr.c (YYUSE): Have a C++ definition that supports
9570	non-pointer types.
9571
95722005-11-14  Akim Demaille  <akim@epita.fr>
9573
9574	* data/glr.c (yyexpandGLRStack): Declare only if defined.
9575
95762005-11-14  Akim Demaille  <akim@epita.fr>
9577
9578	* data/glr.cc: New.
9579	* data/m4sugar/m4sugar.m4 (m4_prepend): New.
9580
95812005-11-12  Akim Demaille  <akim@epita.fr>
9582
9583	Let position and location be PODs.
9584	* data/location.cc (position::initialize, location::initialize): New.
9585	(position::position, location::location): Define only if
9586	b4_location_constructors is defined.
9587	* data/lalr1.cc (b4_location_constructors): Define it for backward
9588	compatibility.
9589	* doc/bison.texinfo (Initial Action Decl): Use initialize.
9590
95912005-11-12  Akim Demaille  <akim@epita.fr>
9592
9593	* data/lalr1.cc: Move the body of the ctor and dtor into the
9594	parser file (instead of the header).
9595	Wrap the implementations in a "namespace yy".
9596
95972005-11-12  Akim Demaille  <akim@epita.fr>
9598
9599	Have glr.c include its header file when created.
9600	* data/glr.c (b4_shared_declarations): New.
9601	Output them verbatim in the parser if !%defines, otherwise
9602	output then in the header file, and include it instead.
9603
96042005-11-11  Akim Demaille  <akim@epita.fr>
9605
9606	* data/glr.c: Comment changes.
9607
96082005-11-11  Akim Demaille  <akim@epita.fr>
9609
9610	When yydebug, report semantic and location values for reductions.
9611	* data/glr.c (yy_reduce_print): Report the semantic values and the
9612	locations.
9613	(YY_REDUCE_PRINT): Adjust.
9614	(yyglrReduce): Use them.
9615	(b4_rhs_value, b4_rhs_location): Remove m4_eval invocations.
9616	* data/c.m4 (b4_yysymprint_generate): Specify the const arguments.
9617	* tests/calc.at (_AT_CHECK_CALC_ERROR): Remove the reduction
9618	traces.
9619
96202005-11-10  Akim Demaille  <akim@epita.fr>
9621
9622	* data/glr.c (yynewGLRStackItem, YY_RESERVE_GLRSTACK): New.
9623	(yyaddDeferredAction, yyglrShift, yyglrShiftDefer): Use them.
9624	(yyexpandGLRStack, YYRELOC): Define only when YYSTACKEXPANDABLE.
9625
96262005-11-09  Albert Chin-A-Young  <china@thewrittenword.com>
9627
9628	* m4/cxx.m4, examples/Makefile.am: Don't build
9629	examples/calc++ if no C++ compiler is available.  (trivial change)
9630
96312005-11-09  Akim Demaille  <akim@epita.fr>
9632
9633	* src/scan-skel.l: Use a couple of asserts.
9634
96352005-11-03  Akim Demaille  <akim@epita.fr>
9636
9637	In some (weird) cases, the final state number is incorrect.
9638	Reported by Alexandre Duret-Lutz.
9639	* src/LR0.c (state_list_append): Remove the computation of
9640	final_state.
9641	(save_reductions): Do it here.
9642	(get_state): Alpha conversion.
9643	(generate_states): Use a for loop.
9644	* src/gram.h (item_number_is_rule_number)
9645	(item_number_is_symbol_number): New.
9646	* src/state.c: Use assert.
9647	* src/system.h: Include assert.h.
9648	* tests/sets.at (Accept): New.
9649
96502005-10-30  Paul Hilfinger  <hilfingr@tully.CS.Berkeley.EDU>
9651
9652	* data/glr.c (yyfill): Adjust comment.
9653	(yyresolveAction): Initialize default location properly
9654	for empty right-hand sides.
9655	(yydoAction): Ditto.
9656	Add comment explaining apparently dead code.
9657	* tests/glr-regression.at
9658	(Incorrectly initialized location for empty right-hand side in GLR):
9659	New test.
9660
96612005-10-30  Paul Eggert  <eggert@cs.ucla.edu>
9662
9663	* bootstrap (cleanup_gnulib): New function.  Use it to clean up
9664	gnulib when interrupted.  This fixes some race conditions and
9665	works around some portability problems (one noted by Paul
9666	Hilfinger).
9667
96682005-10-22  Akim  <akim@epita.fr>
9669
9670	* Makefile.cfg: Adjust to config -> build-aux.
9671	Reported by twledo.
9672
96732005-10-21  Akim Demaille  <akim@epita.fr>
9674
9675	* data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate): Pass
9676	the %parse-params.
9677	* data/glr.c (YY_SYMBOL_PRINT, yydestroyGLRState): Adjust.
9678	* data/yacc.c (b4_Pure_if): Rename as...
9679	(b4_yacc_pure_if): this.
9680	(YY_SYMBOL_PRINT, yyparse): Adjust.
9681	* doc/bison.texinfo: Formatting changes.
9682
96832005-10-21  Akim Demaille  <akim@epita.fr>
9684
9685	Finish the transition config -> build-aux.
9686	* configure.ac, Makefile.am: Use build-aux.
9687	* config/prev-version, config/announce-gen, config/Makefile.am:
9688	Move to...
9689	* build-aux/prev-version, build-aux/announce-gen,
9690	* build-aux/Makefile.am: here.
9691
96922005-10-14  Akim Demaille  <akim@epita.fr>
9693
9694	* examples/calc++/test: Use set -x only when VERBOSE.
9695
96962005-10-13  Paul Eggert  <eggert@cs.ucla.edu>
9697
9698	* NEWS: Bison now warns if it finds a stray `$' or `@' in an action.
9699	* src/scan-gram.l (<SC_BRACED_CODE>[$@]): Implement this.
9700
97012005-10-13  Akim Demaille  <akim@epita.fr>
9702
9703	* src/scan-skel.l: Output the base name parts of the parser and
9704	header file names.
9705	* tests/output.at (AT_CHECK_OUTPUT): Support subdirectories, and
9706	additional checks.
9707	Use this to exercise C++ outputs in subdirs.
9708	Reported by Oleg Smolsky.
9709
97102005-10-12  Paul Eggert  <eggert@cs.ucla.edu>
9711
9712	* data/c.m4 (b4_c_function_def): Look at __C99_FUNC__, not at
9713	__STDC_VERSION__, as IBM cc 7.0 doesn't define the latter either.
9714	Problem reported by John P. Hartmann.
9715	* data/yacc.c (YYMODERN_C): Likewise.  Don't define if the user has
9716	already defined it.
9717
97182005-10-12  Akim Demaille  <akim@epita.fr>
9719
9720	* src/parse-gram.y (version_check): Exit 63 to please missing
9721	(stands for "version mismatch).
9722	* tests/input.at, doc/bison.texinfo: Adjust.
9723
97242005-10-10  Paul Eggert  <eggert@cs.ucla.edu>
9725
9726	Work around portability problems with Visual Age C compiler
9727	(xlc and xlC_r) reported by John P. Hartmann.
9728	* data/location.cc (initial_column, initial_line): Remove.
9729	All uses replaced by 0 and 1.
9730	* src/scan-gram.l (gram_wrap): Redefine to avoid bug in flex 2.5.31
9731	that xlc complains about.
9732	* src/scan-skel.l (skel_wrap): Likewise.
9733	* data/c.m4 (b4_c_function_def): Look at __STDC_VERSION__ as well
9734	as __STDC__.
9735	* data/yacc.c (YYMODERN_C): New macro, which also looks at
9736	__STDC_VERSION__.  Use it everywhere instead of looking at
9737	__STDC__ and __cplusplus.
9738
97392005-10-10  Akim Demaille  <akim@epita.fr>
9740
9741	* examples/calc++/test: Be quiet unless VERBOSE.
9742
97432005-10-05  Paul Eggert  <eggert@cs.ucla.edu>
9744
9745	* data/c.m4 (yydestruct, yysymprint):
9746	Use YYUSE instead of casting to void.
9747	* data/glr.c (YYUSE): New macro.
9748	(yyuserMerge, yyreportAmbiguity, yyreportSyntaxError):
9749	Use it instead of rolling our own.
9750	(YYLLOC_DEFAULT, YYCHK, YYDPRINTF, YY_SYMBOL_PRINT, YY_REDUCE_PRINT):
9751	(YYCHK1):
9752	Use /*CONSTCOND*/ to suppress lint warnings.
9753	* data/lalr1.cc (YYLLOC_DEFAULT, YY_SYMBOL_PRINT, YY_REDUCE_PRINT):
9754	(YY_STACK_PRINT): Use 'false' not '0'.
9755	(YYUSE): New macro.
9756	(yysymprint_, yydestruct_): Use it instead of rolling our own.
9757	* data/yacc.c (YYUSE): New macro.
9758	(YYCOPY, YYSTACK_RELOCATE, YYBACKUP, YYLLOC_DEFAULT):
9759	(YYDPRINTF, YY_SYMBOL_PRINT, YY_STACK_PRINT, YY_REDUCE_PRINT):
9760	(yyerrorlab): Use /*CONSTCOND*/ to suppress lint warnings.
9761
9762
9763	* data/m4sugar/m4sugar.m4 (_m4_map): New macro.
9764	(m4_map, m4_map_sep): Use it.  Handle the empty list correctly.
9765
97662005-10-04  Paul Eggert  <eggert@cs.ucla.edu>
9767
9768	Undo the parts of the unlocked-I/O change that substituted
9769	putc or puts for printf.  This might hurt performance a bit,
9770	but some people prefer the printf style.
9771	* data/c.m4 (yysymprint): Prefer printf to puts and putc.
9772	* data/glr.c (YYFPUTC, YYFPUTS, YYDPUTS): Remove.
9773	All uses replaced by YYFPRINTF and YYDPRINTF.
9774	* data/yacc.c: Likewise.
9775	* lib/bitset.c (bitset_print): Likewise.
9776	* lib/bitsetv.c (bitsetv_dump, debug-bitsetv): Prefer printf to
9777	putc and puts.
9778	* lib/lbitset.c (debug_lbitset): Likewise.
9779	* src/closure.c (print_firsts, print_fderives): Likewise.
9780	* src/gram.c (grammar_dump): Likewise.
9781	* src/lalr.c (look_ahead_tokens_print): Likewise.
9782	* src/output.c (escaped_output): Likewise.
9783	(user_actions_output): Break apart two printfs.
9784	* src/parse-gram.y (%printer): Prefer printf to putc and puts.
9785	* src/reduce.c (reduce_print): Likewise.
9786	* src/state.c (state_rule_look_ahead_tokens_print): Likewise.
9787	* src/system.h: Include unlocked-io.h rathe than stdio.h.
9788
9789	* data/glr.c (yyuserMerge, yyreportAmbiguity, yyreportSyntaxError):
9790	Use assignments rather than casts-to-void to suppress
9791	unused-variable warnings.  This pacifies 'lint'.
9792	* data/lalr1.cc (yysymprint_, yydestruct_): Use a call to suppress
9793	unused-variable warnings.
9794
97952005-10-03  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
9796
9797	* Makefile.am: DJGPP specific files added to EXTRA_DIST.
9798
97992005-10-02  Paul Eggert  <eggert@cs.ucla.edu>
9800
9801	Use unlocked I/O for a minor performance improvement on hosts like
9802	GNU/Linux and Solaris that support unlocked I/O.  The basic idea
9803	is to use the gnlib unlocked-io module, and to prefer putc and
9804	puts to printf when either will work (since the latter doesn't
9805	come in an unlocked flavor).
9806	* bootstrap (gnulib_modules): Add unlocked-io.
9807	* data/c.m4 (yysymprint): Prefer puts and putc to printf.
9808	* data/glr.c (YYFPUTC, YYFPUTS, YYDPUTS): New macros.
9809	Prefer them to YYFPRINTF and YYDPRINTF if either will do,
9810	and similarly for puts and putc and printf.
9811	* data/yacc.c: Likewise.
9812	* lib/bitset.c (bitset_print): Likewise.
9813	* lib/bitset.h [USE_UNLOCKED_IO]: Include unlocked-io.h.
9814	* lib/bitsetv.c (bitsetv_dump, debug-bitsetv): Prefer putc and puts
9815	to printf.
9816	* lib/lbitset.c (debug_lbitset): Likewise.
9817	* src/closure.c (print_firsts, print_fderives): Likewise.
9818	* src/gram.c (grammar_dump): Likewise.
9819	* src/lalr.c (look_ahead_tokens_print): Likewise.
9820	* src/output.c (escaped_output): Likewise.
9821	(user_actions_output): Coalesce two printfs.
9822	* src/parse-gram.y (%printer): Prefer putc and puts to printf.
9823	* src/reduce.c (reduce_print): Likewise.
9824	* src/state.c (state_rule_look_ahead_tokens_print): Likewise.
9825	* src/system.h: Include unlocked-io.h rather than stdio.h.
9826
9827	* data/lalr1.cc: Don't put an unmatched ' in a dnl comment, as
9828	this confuses xgettext.
9829
98302005-10-02  Akim Demaille  <akim@epita.fr>
9831
9832	* bootstrap (gnulib_modules): Add strverscmp.
9833	* lib/.cvsignore: Add strverscmp.c, strverscmp.h.
9834	* m4/.cvsignore: Add strverscmp.m4.
9835	* src/parse-gram.y (%require): New token, new rule.
9836	(version_check): New.
9837	* src/scan-gram.l (%require): Adjust.
9838	* tests/input.at (AT_REQUIRE): New.
9839	Use it.
9840	* doc/bison.texinfo (Require Decl): New.
9841	(Calc++ Parser): Use %require.
9842
98432005-10-02  Akim Demaille  <akim@epita.fr>
9844
9845	* data/location.cc: New.
9846
98472005-10-02  Paul Eggert  <eggert@cs.ucla.edu>,
9848	    Akim Demaille  <akim@epita.fr>
9849
9850	Make sure -odir/foo.cc creates dir/location.hh etc.
9851	* src/files.h (spec_outfile, parser_file_name, spec_name_prefix)
9852	(spec_file_prefix, spec_verbose_file, spec_graph_file)
9853	(spec_defines_file): Now const.
9854	(dir_prefix): New.
9855	(short_base_name): Remove.
9856	* src/files.c: Adjust.
9857	(dirname.h): Include.
9858	(base_name): Don't prototype it.
9859	(finput): Remove, duplicates gram_in.
9860	(full_base_name, short_base_name): Replace by...
9861	(all_but_ext, all_but_tab_ext): these.
9862	(compute_base_names): Rename as...
9863	(compute_file_name_parts): this.
9864	Update to compute the new variables, including dir_prefix.
9865	Adjust dependencies.
9866	* src/output.c (prepare): Output them.
9867	* src/reader.c: Adjust to use gram_in, not finput.
9868	* src/scan-skel.l (@dir_prefix@): New.
9869
98702005-10-02  Juan Manuel Guerrero  <juan.guerrero@gmx.de>
9871
9872	* lib/subpipe.c: New function end_of_output_subpipe() added
9873	to allow support for non-posix systems. This is a no-op function
9874	for posix systems.
9875
9876	* lib/subpipe.h: New function end_of_output_subpipe() added
9877	to allow support for non-posix systems. This is a no-op function
9878	for posix systems.
9879
9880	* src/output.c (output_skeleton): Use end_of_output_subpipe() to
9881	handle the lack of pipe/fork functionality on non-posix systems.
9882
9883	* djgpp/Makefile.maint: DJGPP specific file.
9884
9885	* djgpp/README.in: DJGPP specific file.
9886
9887	* djgpp/config.bat: DJGPP specific configuration file.
9888
9889	* djgpp/config.sed: DJGPP specific configuration file.
9890
9891	* djgpp/config.site: DJGPP specific configuration file.
9892
9893	* djgpp/config_h.sed: DJGPP specific configuration file.
9894
9895	* djgpp/subpipe.c: DJGPP specific replacement file for lib/subpipe.c.
9896
9897	* djgpp/subpipe.h: DJGPP specific replacement file for lib/subpipe.h.
9898
98992005-10-02  Akim Demaille  <akim@epita.fr>
9900
9901	* data/location.cc: New, extract from...
9902	* data/lalr1.cc: here.
9903	(location.hh): Include it after the user prologue, in case the
9904	filename type is defined by the user.
9905	Forward declation location and position before the pre-prologue.
9906	(yyresult_): Rename as...
9907	(yyresult): this, it's a local variable, not an attribute.
9908	* data/Makefile.am (dist_pkgdata_DATA): Adjust.
9909
99102005-10-01  Akim Demaille  <akim@epita.fr>
9911
9912	* examples/extexi: Restore the #line generation.
9913
99142005-09-30  Akim Demaille  <akim@epita.fr>,
9915	    Alexandre Duret-Lutz <adl@gnu.org>
9916
9917	Move the token type and YYSTYPE in the parser class.
9918	* data/lalr1.cc (stack.hh, location.hh): Include earlier.
9919	(parser::token): New, from the moved free definition of tokens.
9920	(parser::semantic_value): Now a full definition instead of an
9921	indirection to YYSTYPE.
9922	(b4_post_prologue): No longer included in the header file, but
9923	in the implementation file.
9924	* doc/bison.texi (C+ Language Interface): Update.
9925	* src/parse-gram.y: Support unary %define.
9926	* tests/actions.at: Define global_tokens_and_yystype for backward
9927	compatibility until we update the tests.
9928	* tests/calc.at: Idem.
9929	(first_line, first_column, last_line, last_column): Define for lalr1.cc
9930	to simplify the code.
9931
99322005-09-29  Paul Eggert  <eggert@cs.ucla.edu>
9933
9934	Port to SunOS 4.1.4, which lacks strtoul and strerror.
9935	Ah, the good old days!  Problem reported by Peter Klein.
9936	* bootstrap (gnulib_modules): Add strerror, strtoul.
9937	* lib/.cvsignore: Add strerror.c, strtol.c, strtoul.c
9938	* m4/.cvsignore: Add strerror.m4, strtol.m4, strtoul.m4.
9939
99402005-09-29  Akim Demaille  <akim@epita.fr>
9941
9942	* data/c.m4 (b4_error_verbose_if): New.
9943	* data/lalr1.cc: Use it.
9944	(YYERROR_VERBOSE_IF): Remove.
9945	(yyn_, yylen_, yystate_, yynerrs_, yyerrstatus_): Remove as
9946	parser members, replaced by...
9947	(yyn, yylen, yystate, yynerss, yyerrstatus): these parser::parse
9948	local variables.
9949	(yysyntax_error_): Takes the state number as argument.
9950	(yyreduce_print_): Use the argument yyrule, not the former
9951	attribute yyn_.
9952
99532005-09-26  Paul Eggert  <eggert@cs.ucla.edu>
9954
9955	* bootstrap (gnulib_modules): Add verify.
9956	* lib/.cvsignore: Add verify.h.
9957	* src/getargs.c: Use ARGMATCH_VERIFY rather than verify.
9958	* src/system.h (verify): Remove.
9959	Include verify.h instead.
9960	* src/tables.c (tables_generate): Use new API for 'verify'.
9961
99622005-09-21  Paul Eggert  <eggert@cs.ucla.edu>
9963
9964	* tests/local.at (_AT_BISON_OPTION_PUSHDEFS): Do not use
9965	local variables whose names begin with 'yy'.
9966	* tests/calc.at (_AT_DATA_CALC_Y): Likewise.
9967	Trivial changes from Joel E. Denny.
9968
9969	* bootstrap (gnulib_modules): Remove alloca.  Bison doesn't need
9970	it itself.
9971	* src/main.c (main) [C_ALLOCA]: Don't flush alloca'ed memory; we
9972	don't use alloca any more.
9973
9974	* data/yacc.c [YYSTACK_USE_ALLOCA && !defined __GNUC__ && ! defined
9975	__BUILTIN_VA_ARG_INCR && ! defined _AIX && ! defined _MSC_VER &&
9976	defined _ALLOCA_H]: Don't include <stdlib.h>; not needed in this case.
9977	* tests/torture.at (Exploding the Stack Size with Alloca): Adjust
9978	to match yacc.c, to test more hosts.
9979
99802005-09-20  Paul Eggert  <eggert@cs.ucla.edu>
9981
9982	* data/yacc.c (YYSIZE_T): Reindent to make it clearer.  This
9983	doesn't affect behavior.
9984	(YYSTACK_ALLOC) [YYSTACK_USE_ALLOCA]: Improve support for
9985	Solaris, AIX, MSC.
9986	(_STDLIB_H): Renamed from YYINCLUDED_STDLIB_H.  All uses changed.
9987	This works a bit better with glibc, if user code has already included
9988	stdlib.h.
9989	* doc/bison.texinfo (Bison Parser): Document that users can't
9990	arbitrarily use malloc and free for other purposes.  Document
9991	that <alloca.h> and <malloc.h> might be included.
9992	(Table of Symbols): Under YYSTACK_USE_ALLOCA, Don't claim that the
9993	user must declare alloca.
9994
9995	* HACKING (release): Forwarn the Translation Project about
9996	stable releses.
9997
99982005-09-20  Akim Demaille  <akim@epita.fr>
9999
10000	* data/glr.c: Use b4_token_enums, not b4_token_enums_defines.
10001
100022005-09-19  Paul Eggert  <eggert@cs.ucla.edu>
10003
10004	* data/yacc.c (YYSIZE_MAXIMUM): New macro.
10005	(YYSTACK_ALLOC_MAXIMUM): Use it.
10006	(yysyntax_error): New function.
10007	(yyparse) [YYERROR_VERBOSE]: Don't leak memory indefinitely if
10008	multiple syntax errors are reported, and alloca is being used.
10009	Instead, reallocate buffers twice as big each time, so that
10010	we waste at most half the allocated memory.  Start with a small
10011	(128-byte) buffer that will suffice in most cases anyway.
10012	Use yysyntax_error to do most of the work.
10013
10014	* doc/bison.texinfo (Error Reporting, Table of Symbols):
10015	yynerrs is the number of errors reported, not the number of
10016	errors encountered.
10017
10018	* tests/glr-regression.at (Duplicated user destructor for lookahead):
10019	Mark it as expected to fail.
10020	Cast result of malloc; problem reported by twlevo@xs4all.nl.
10021	* tests/actions.at, tests/calc.at, tests/glr-regression.at:
10022	Don't start user-code symbols with "yy", to avoid name space problems.
10023
100242005-09-19  Akim Demaille  <akim@epita.fr>
10025
10026	Remove the traits, failed experiment.
10027	It never proved useful, and anyway because of the current
10028	definition, it was not possible to have several specialization of
10029	this traits, making it useless.
10030	* data/lalr1.cc (yy:traits): Remove.
10031	Inline its definitions in the parser class.
10032
100332005-09-19  Akim Demaille  <akim@epita.fr>
10034
10035	* tests/atlocal.in (LIBS): Pass INTLLIBS to address failures on at
10036	least Mac OSX with a /usr/local install of gettext.
10037
100382005-09-19  Akim Demaille  <akim@epita.fr>
10039
10040	* data/lalr1.cc (yyparse): Rename yylooka and yyilooka as yychar
10041	and yytoken for similarity with the other skeletons.
10042
100432005-09-19  Akim Demaille  <akim@epita.fr>
10044
10045	* NEWS, configure.ac: update version number to 2.1a.
10046
100472005-09-16  Paul Eggert  <eggert@cs.ucla.edu>
10048
10049	* NEWS: Version 2.1.
10050
10051	* NEWS: Remove notice of yytname change, since it was never in an
10052	official release.
10053	* data/glr.c (yydestroyGLRState): Rename local var to avoid shadowing
10054	diagnostic.
10055	* src/output.c (prepare): Likewise.
10056	* data/lalr1.cc (YYERROR_VERBOSE_IF): New macro.
10057	(yysyntax_error_): Use it to avoid GCC warning when YYERROR_VERBOSE
10058	is not defined.  This is an awful hack, but it's enough for now.
10059	All callers changed.
10060	* tests/glr-regression-at (make_value): Args are const pointers now,
10061	to avoid GCC warning.
10062	(Duplicated user destructor for lookahead): New test.  Currently
10063	skipped.  It fails on my host but I'm not sure it'll always fail.
10064
100652005-09-16  Akim Demaille  <akim@epita.fr>
10066
10067	* src/symtab.h (struct symbol): Declare the printer and destructor
10068	as const, to avoid accidental calls to free.
10069	(symbol_destructor_set, symbol_printer_set): Adjust.
10070	* src/symtab.c: Adjust.
10071
100722005-09-16  Akim Demaille  <akim@epita.fr>
10073
10074	* data/c.m4 (b4_token_enums): New.
10075	(b4_token_defines): Rename as...
10076	(b4_token_enums_defines): this.
10077	(b4_token_defines): New, output only the #defines.
10078	* data/yacc.c, data/glr.c: Adjust.
10079	* data/lalr1.cc: Use b4_token_enums instead of b4_token_enums_defines.
10080	* data/c.m4 (b4_yydestruct_generate, b4_yysymprint_generate): Define
10081	as default values.
10082
100832005-09-16  Akim Demaille  <akim@epita.fr>
10084
10085	* data/lalr1.cc (yylex_): Remove, inline its code.
10086	(yyreport_syntax_error_): Remove, replaced by...
10087	(yysyntax_error_): this which returns a string and leaves to the
10088	caller the call to the users' error function.
10089	(yylooka_, yyilooka_, yylval, yylloc, yyerror_range_, yyval, yyloc):
10090	Move from members of the parser object...
10091	(yylooka, yyilooka, yylval, yylloc, yyerror_range, yyval, yyloc):
10092	to local variables of the parse function.
10093
100942005-09-16  Akim Demaille  <akim@epita.fr>
10095
10096	* doc/bison.texinfo (Calc++ Parser): Don't promote defining YYEOF
10097	since it's in Bison's name space.
10098
100992005-09-15  Paul Eggert  <eggert@cs.ucla.edu>
10100
10101	* data/glr.c (yyresolveValue): Add default case to pacify
10102	gcc -Wswitch-default.  Problem reported by twlevo@xs4all.nl.
10103
10104	* NEWS: Document when yyparse started to return 2.
10105	* doc/bison.texinfo (Parser Function): Document when yyparse
10106	returns 2.
10107
10108	* data/lalr1.cc: Revert part of previous change, as it's incompatible.
10109	(b4_filename_type): Renamed back from b4_file_name_type.  All uses
10110	changed.
10111	(class position): file_name -> filename (reverting).  All uses changed.
10112
101132005-09-14  Paul Eggert  <eggert@cs.ucla.edu>
10114
10115	* examples/calc++/Makefile.am ($(calc_sources_generated)): Don't
10116	do anything if $@ exists.  This reverts part of the 2005-07-07
10117	patch.
10118
101192005-09-11  Paul Eggert  <eggert@cs.ucla.edu>
10120
10121	* Makefile.am (EXTRA_DIST): Do not distribute REFERENCES; it
10122	contains obsolete information and isn't worth distributing as a
10123	separate file anyway.
10124	* data/glr.c [defined YYSETJMP]: Don't include <setjmp.h>.
10125	(YYJMP_BUF, YYSETJMP, YYLONGJMP) [!defined YYSETJMP]: New macros.
10126	All uses of jmp_buf, setjmp, longjmp changed to use these instead.
10127	(yyparse): Abort if user code uses longjmp to throw an unexpected
10128	value.
10129
101302005-09-09  Paul Eggert  <eggert@cs.ucla.edu>
10131
10132	* data/c.m4 (b4_identification): Define YYBISON_VERSION.
10133	Suggested by twlevo@xs4all.nl.
10134
10135	* data/glr.c (YYCHK1): Do not assume YYE is in range.
10136	This avoids a diagnostic from gcc -Wswitch-enum.
10137	Problem reported by twlevo@xs4all.nl.
10138
10139	* doc/bison.texinfo: Don't use "filename", as per GNU coding
10140	standards.  Use "file name" or "file" or "name", depending on
10141	the context.
10142	(Invocation): The output of "bison hack/foo.y" goes to foo.tab.c,
10143	not to hack/foo.tab.c.
10144	(Calc++ Top Level): 2nd arg of main is not const.
10145	* data/glr.c: b4_filename -> b4_file_name.
10146	* data/lalr1.cc: Likewise.  Also, b4_filename_type -> b4_file_name_type.
10147	All uses changed.
10148	(class position): filename -> file_name.  All uses changed.
10149	* data/yacc.c: b4_filename -> b4_file_name.
10150	* lib/bitset.h: filename -> file_name in local vars.
10151	* lib/bitset_stats.c: Likewise.
10152	* src/files.c: Likewise.
10153	* src/scan-skel.l ("@output ".*\n): Likewise.
10154	* src/files.c (file_name_split): Renamed from filename_split.
10155	* src/muscle_tab.c (muscle_init): Output b4_file_name, not b4_filename.
10156
101572005-09-08  Paul Eggert  <eggert@cs.ucla.edu>
10158
10159	* lib/.cvsignore: Add pipe-safer.c, stdio--.h, unistd--.h,
10160	to accommodate latest gnulib.
10161
10162	* tests/glr-regression.at (Duplicate representation of merged trees):
10163	Add casts to pacify g++.  Problem reported by twlevo@xs4all.nl.
10164
10165	* bootstrap: Add comment as to why the AM_LANGINFO_CODESET hack is
10166	needed.
10167
101682005-08-26  Paul Eggert  <eggert@cs.ucla.edu>
10169
10170	* data/glr.c (yydestroyGLRState): Renamed from yydestroyStackItem.
10171	All uses changed.  Invoke user destructor after an error during a
10172	split parse (trivial change from Joel E. Denny).
10173
10174	* tests/glr-regression.at
10175	(User destructor after an error during a split parse):  New test case.
10176	Problem reported by Joel E. Denny in:
10177	http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00029.html
10178
101792005-08-25  Paul Eggert  <eggert@cs.ucla.edu>
10180
10181	* README-cvs: Give URLs for recommended tools.
10182	Mention Gzip version problem, and bootstrapping issues.
10183	Remove troubleshooting section, as it's somewhat obsolete.
10184
10185	* bootstrap (no_cache): New var, to accommodate different wget
10186	variants.  Use it instead of '-C off'.  Problem reported by
10187	twlevo@xs4all.nl.
10188
10189	* data/glr.c (yydestroyStackItem): New function.
10190	(yyrecoverSyntaxError, yyreturn): Use it to improve quality of
10191	debugging information.  Problem reported by Joel E. Denny.
10192
101932005-08-25  Akim Demaille  <akim@epita.fr>
10194
10195	* tests/local.at (AT_COMPILE_CXX): Pass $LINKS too.
10196
101972005-08-24  Paul Eggert  <eggert@cs.ucla.edu>
10198
10199	* data/glr.c (yyrecoverSyntaxError, yyreturn):
10200	Don't invoke destructor on unresolved entries.
10201	* tests/glr-regression.at
10202	(User destructor for unresolved GLR semantic value): New test case.
10203	Problem reported by Joel E. Denny in:
10204	http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00016.html
10205
102062005-08-21  Paul Eggert  <eggert@cs.ucla.edu>
10207
10208	* lib/.cvsignore: Remove realloc.c, strncasecmp.c, xstrdup.c.
10209	Add strnlen.c.
10210	* m4/.cvsignore: Remove codeset.m4, gettext.m4, lib-ld.m4,
10211	lib-prefix.m4, po.m4.
10212
10213	* data/glr.c (yyreturn): Use "Cleanup:" rather than "Error:"
10214	in yydestruct diagnostic, since it might not be an error.
10215	Problem reported by Joel Denny near end of
10216	<http://lists.gnu.org/archive/html/help-bison/2005-07/msg00040.html>.
10217	* data/lalr1.cc (yyerturn): Likewise.
10218	* data/yacc.c (yyreturn): Likewise.
10219	* tests/calc.at (_AT_CHECK_CALC_ERROR): Adjust to the above change.
10220
10221	* src/files.c: Remove obsolete FIXME comment.
10222
10223	* data/glr.c (YY_SYMBOL_PRINT): Append a newline, for consistency
10224	with the other templates, and to fix bogus run-on messages such
10225	as the one reported at the end of
10226	<http://lists.gnu.org/archive/html/help-bison/2005-07/msg00040.html>.
10227	All callers changed to avoid the newline.
10228	(yyprocessOneStack): Output two lines rather than one, to accommodate
10229	the above change.  This changes the debug output format slightly.
10230
10231	* data/glr.c (yyresolveValue): Fix redundant parse tree problem
10232	reported by Joel E. Denny in
10233	<http://lists.gnu.org/archive/html/bison-patches/2005-08/msg00004.html>
10234	(trivial change).
10235	* tests/glr-regression.at (Duplicate representation of merged trees):
10236	New test, from Joel E. Denny in:
10237	<http://lists.gnu.org/archive/html/help-bison/2005-07/msg00013.html>.
10238	* THANKS: Add Joel E. Denny.
10239
10240	* configure.ac (AC_INIT): Bump to 2.0c.
10241
102422005-07-24  Paul Eggert  <eggert@cs.ucla.edu>
10243
10244	* NEWS: Version 2.0b.
10245
10246	* Makefile.am (SUBDIRS): Put examples before tests, so that
10247	"make check" doesn't finish with "All 1 tests passed".
10248
10249	* tests/regression.at (Token definitions): Don't rely on
10250	AT_PARSER_CHECK for data that contains backslashes.  It currently
10251	uses 'echo', and 'echo' isn't portable if its argument contains
10252	backslashes.  Problem found on OpenBSD 3.4.  Also, do not assume
10253	that the byte '\0xff' is not printable in the C locale; it is,
10254	under OpenBSD 3.4 (!).  Luckily, '\0x80' through '\0x9e' are
10255	not printable, so use '\0x81' to test.
10256
10257	* data/glr.c (YYOPTIONAL_LOC): Define even if it's not a recent
10258	version of GCC, since the macro is used with non-GCC compilers.
10259
10260	Fix core dump reported by Pablo De Napoli in
10261	<http://lists.gnu.org/archive/html/bug-bison/2005-07/msg00053.html>.
10262	* tests/regression.at (Invalid inputs with {}): New test.
10263	* src/parse-gram.y (token_name): Translate type before using
10264	it as an index.
10265
10266	* data/glr.c (ATTRIBUTE_UNUSED): Remove, since it infringes on
10267	the user's name space.  All uses changed to __attribute__
10268	((__unused__)).
10269	(yyFail, yyMemoryExhausted, yyreportAmbiguity):
10270	Add __attribute__ ((__noreturn__)).
10271
10272	* etc/clcommit: Remove.  We weren't using it, and it failed
10273	"make maintainer-distcheck".
10274	* Makefile.maint: Merge from coreutils.
10275	(CVS_LIST, CVS_LIST_EXCEPT): New macros.
10276	(syntax-check-rules): Change list of rules as described below.
10277	(sc_cast_of_alloca_return_value, sc_dd_max_sym_length):
10278	(sc_file_system, sc_obsolete_symbols, sc_prohibit_atoi_atof):
10279	(sc_prohibit_jm_in_m4, sc_root_tests, sc_tight_scope):
10280	(sc_trailing_space): New rules.
10281	(sc_xalloc_h_in_src): Remove.
10282	(sc_cast_of_argument_to_free, sc_cast_of_x_alloc_return_value):
10283	(sc_space_tab, sc_error_exit_success, sc_changelog):
10284	(sc_system_h_headers, sc_sun_os_names, sc_unmarked_diagnostics):
10285	(makefile-check, po-check, author_mark_check):
10286	(makefile_path_separator_check, copyright-check):
10287	Use grep -n, to make it easier to find violations.
10288	Use CVS_LIST and CVS_LIST_EXCEPT.
10289	(header_regexp, h_re): Remove.
10290	(dd_c): New macro.
10291	(sc_dd_max_sym_length, .re-list, news-date-check): New rules.
10292	(my-distcheck): Use more-modern GCC flags.
10293	(signatures, %.asc): Remove.
10294	(rel-files, announcement): Remove signatures.
10295	Restore old updating code, even though we don't use it, so
10296	that we're the same as coreutils.
10297	(alpha, beta, major): Depend on news-date-check.
10298	Make the upload commands.
10299
10300	* data/c.m4, data/lalr1.cc, data/yacc.c: Normalize white space.
10301	* lib/abitset.h, lib/bbitset.h, lib/bitset.h: Likewise.
10302	* lib/bitset_stats.c, lib/ebitset.h, lib/lbitset.c: Likewise.
10303	* lib/libitset.h, lib/timevar.c, lib/vbitset.h: Likewise.
10304	* src/Makefile.am, src/gram.c, src/muscle_tab.h: Likewise.
10305	* src/parse-gram.y, src/system.h, src/tables.c, src/vcg.c: Likewise.
10306	* src/vcg_defaults.h, tests/cxx-type.at, tests/existing.at: Likewise.
10307	* tests/sets.at: Likewise.
10308
10309	* data/m4sugar/m4sugar.m4: Sync from Autoconf, except that
10310	we comment out the Autoconf version number.
10311	* doc/bison.texinfo (Calc++ Scanner): Don't use atoi, as
10312	it's error-prone and "make maintainer-distcheck" rejects it.
10313
10314	* lib/subpipe.c: Include <fcntl.h> without checking for HAVE_FCNTL_H.
10315	Indent calls to "error" to pacify "make maintainer-distcheck",
10316	when the calls are not intended to be translated.
10317	* m4/subpipe.m4 (BISON_PREREQ_SUBPIPE): Don't check for fcntl.h.
10318
10319	* src/Makefile.am (DEFS): Use +=, to pacify
10320	"make maintainer-distcheck".
10321	(bison_SOURCES): Add scan-skel.h.
10322	(sc_tight_scope): New rule, from coreutils.
10323
10324	* src/files.c (src_extension, header_extension):
10325	Now static, not extern.
10326	* src/getargs.c (short_options): Likewise.
10327	* src/muscle_tab.c (muscle_table): Likewise.
10328	* src/parse-gram.y (current_class, current_type, current_prec):
10329	Likewise.
10330	* src/reader.c (grammar_end, previous_rule_end): Likewise.
10331	* src/getargs.h: Redo comments to pacify "make maintainer-distcheck".
10332	* src/main.c (main): Cast bindtextdomain and textdomain calls to
10333	void, to avoid warning when NLS is disabled.
10334	* src/output.c: Include scan-skel.h.
10335	(scan_skel): Remove decl, since scan-skel.h does this.
10336	(output_skeleton):
10337	Indent calls to "error" to pacify "make maintainer-distcheck".
10338	* src/print_graph.c: Don't include <obstack.h>, as system.h does this.
10339	* src/reader.h (gram_end, gram_lineno): New decls to pacify
10340	"make maintainer-distcheck".
10341	* src/scan-skel.l (skel_lex, skel_get_lineno, skel_get_in):
10342	(skel_get_out, skel_get_leng, skel_get_text, skel_set_lineno):
10343	(skel_set_in, skel_set_out, skel_get_debug, skel_set_debug):
10344	(skel_lex_destroy, scan_skel): Move these decls to...
10345	* src/scan-skel.h: New file.
10346	* src/uniqstr.c (uniqstr_assert):
10347	Indent calls to "error" to pacify "make maintainer-distcheck".
10348
10349	* tests/Makefile.am ($(srcdir)/package.m4): Use $(VAR),
10350	not @VAR@.
10351
10352	* tests/torture.at: Revamp to avoid misuse of atoi that
10353	"make maintainer-distcheck" complained about.
10354
10355	* examples/extexi (message): Don't print a message more than once,
10356	and omit line-number decoration that makes Emacs compile think
10357	that informative messages are worth worrying about.
10358
103592005-07-22  Paul Eggert  <eggert@cs.ucla.edu>
10360
10361	* configure.ac: Update version number.
10362
10363	* Makefile.am (SUBDIRS): Add examples; somehow this got removed
10364	accidentally.
10365	* examples/calc++/calc++-parser.yy: Remove from CVS, as it's
10366	autogenerated by the maintainer.
10367	* examples/calc++/.cvsignore: Add *.yy.
10368
10369	* lib/bitset.c (bitset_alloc): Don't cast xcalloc result.
10370	* lib/bitset_stats.c (bitset_stats_init): Likewise.
10371	* lib/bitsetv.c (bitsetv_alloc): Likewise.
10372
10373	* po/POTFILES.in: Add lib/xalloc-die.c; remove lib/xmalloc.c.
10374
10375	* src/relation.c (relation_transpose): Rewrite to avoid bogus complaint
10376	from maintainer-distcheck about casting the argument of 'free'.
10377
10378	* NEWS: Mention recent yytname changes.
10379	* THANKS: Add Anthony Heading, twlevo@xs4all.nl.
10380
10381	* bootstrap: For translations that have not yet been upgraded to
10382	the new runtime-po domain, prime the pump by extracting the
10383	relevant strings from the obsolete translations.  This code can be
10384	removed once the bison-runtime domain has been translated by each
10385	team.
10386
10387	* src/scan-gram.l (<SC_PRE_CODE>.): Don't double-quote token names,
10388	now that token names are already quoted.
10389
10390	Fix problem reported by Anthony Heading.
10391	* data/glr.c (YYTOKEN_TABLE): New macro.
10392	(yytname): Define if YYTOKEN_TABLE.
10393	* data/yacc.c (YYTOKEN_TABLE, yytname): Likewise.
10394	* data/lalr1.cc (YYTOKEN_TABLE, yytname_): Likewise.
10395	(YYERROR_VERBOSE): Define the same way the other skeletons do.
10396	* src/output.c (prepare_symbols): Output token_table_flag.
10397
103982005-07-21  Paul Eggert  <eggert@cs.ucla.edu>
10399
10400	* data/glr.c (yyinitGLRStack, yyreturn): Don't call malloc
10401	again if the first call fails.
10402
10403	* data/glr.c (yytnamerr): New function.
10404	(yyreportSyntaxError): Use it to dequote most string literals.
10405	* data/lalr1.c (yytname_): Renamed from yyname_, for compatibility
10406	with other skeletons.  All uses changed.
10407	(yytnameerr_): New function.
10408	(yyreport_syntax_error): Use it to dequote most string literals.
10409	* data/yacc.c (yytnamerr): New function.
10410	(yyerrlab): Use it to decode most string literals.
10411	* doc/bison.texinfo (Decl Summary, Calling Convention):
10412	Clarify quoting convention of yytname.
10413	* src/output.c (prepare_symbols): Quote all names.  This undoes
10414	the 2005-04-17 change, which is now accomplished (mostly) via
10415	changes in the parsers as described above.
10416	* tests/regression.at (Token definitions, Web2c Actions):
10417	Undo most 2005-04-17 change here, too.
10418
104192005-07-20  Paul Eggert  <eggert@cs.ucla.edu>
10420
10421	Fix more problems reported by twlevo@xs4all.nl.
10422	* tests/cxx-type.at: Don't pipe output of ./types through sed to
10423	remove trailing spaces.  This loses the exit status of ./types,
10424	and isn't needed since ./types shouldn't be emitting trailing
10425	spaces.
10426	* data/glr.c (yyreturn): Don't pop stack if yyinitStateSet failed,
10427	as the stack isn't valid in that case.
10428
10429	* src/scan-gram.l (gram_get_lineno, gram_get_in, gram_get_out):
10430	(gram_get_leng, gram_get_text, gram_set_lineno, gram_set_in):
10431	(gram_set_out, gram_get_debug, gram_set_debug, gram_lex_destroy):
10432	Add declarations to pacify "gcc -Wmissing-prototypes" when flex 2.5.31
10433	is used.
10434	* src/scan-skel.l (skel_get_lineno, skel_get_in, skel_get_out):
10435	(skel_get_leng, skel_get_text, skel_set_lineno, skel_set_in):
10436	(skel_set_out, skel_get_debug, skel_set_debug, skel_lex_destroy):
10437	Likewise.
10438
10439	* tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Work even with
10440	overly-picky compilers that reject 'char *foo = "bar";'.
10441
10442	* src/symtab.c (SYMBOL_ATTR_PRINT, symbol_print): Direct output
10443	to FILE * parameter, not to stderr.  This fixes a typo introduced
10444	in the 2005-07-12 change.
10445
10446	* lib/subpipe.c (create_subpipe): Rewrite slightly to avoid
10447	warnings from GCC 4.
10448
10449	* data/glr.c (yyexpandGLRStack, yyaddDeferredAction, yyexpandGLRStack):
10450	(yyglrShiftDefer, yysplitStack):
10451	Remove unused parameters b4_pure_formals.  All uses changed.
10452	(yyglrShift): Remove unused parameters b4_user_formals.
10453	All uses changed.
10454	(yyglrReduce): Removed unused parameter yylocp.  All uses changed.
10455
104562005-07-18  Paul Eggert  <eggert@cs.ucla.edu>
10457
10458	Destructor cleanups and regularization among the three skeletons.
10459	* NEWS: Document the behavior changes.
10460	* data/glr.c (yyrecoverSyntaxError): Don't bother to pop the
10461	stack before failing, as the cleanup code will do it for us now.
10462	* data/lalr1.cc (yyerrlab): Likewise.
10463	* data/glr.c (yyparse): Pop everything off the stack before
10464	freeing it, so that destructors get called properly.
10465	* data/lalr1.cc (yyreturn): Likewise.
10466	* data/yacc.c (yyreturn): Pop and destroy the start symbol, too.
10467	This is more consistent.
10468	* doc/bison.texinfo (Destructor Decl): Mention more reasons
10469	why destructors might be called.  1.875 -> 2.1.
10470	(Destructor Decl, Decl Summary, Table of Symbols):
10471	Some English-language cleanups for %destructor.
10472	* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
10473	Add output line for destructor of start symbol.
10474	* tests/calc.at (AT_CHECK_CALC): Add one to line counts,
10475	because of that same extra output line.
10476
10477	* NEWS: Document minor wording changes in diagnostics of
10478	Bison-generated parsers.
10479	* data/glr.c (yyMemoryExhausted): Renamed from yyStackOverflow.
10480	Remove unused formals.  All uses changed.
10481	(yyreportAmbiguity): "ambiguity detected" -> "syntax is ambiguous".
10482	(yyparse): Rename yyoverflowlab to yyexhaustedlab.
10483	* data/yacc.c (yyparse): "parser stack overflow" -> "memory exhausted".
10484	Rename yyoverflowab to yyexhaustedlab.
10485	When memory exhaustion occurs during syntax-error reporting,
10486	report it separately rather than in a single diagnostic; this
10487	eases translation.
10488	* doc/bison.texinfo (Memory Management): Renamed from Stack Overflow.
10489	(Memory Exhausted): Renamed from Parser Stack Overflow.
10490	Revamp wording slightly to prefer "memory exhaustion".
10491	* tests/actions.at: "parser stack overflow" -> "memory exhausted".
10492
10493	* data/c.m4 (b4_yysymprint_generate): Use YYFPRINTF, not fprintf.
10494
10495	Add i18n support to the GLR skeleton.  Partially fix the C++
10496	skeleton; a C++ expert needs to finish this.  Remove debugging
10497	msgids; there's little point to having them translated, since they
10498	can be understood only by someone who can read the
10499	(English-language) source code.
10500
10501	Generate runtime-po/bison-runtime.pot automatically, so that we
10502	don't have to worry about garbage getting in that file.  We'll
10503	make sure after the next official release that old msgids don't
10504	get lost.  See
10505	<http://lists.gnu.org/archive/html/bison-patches/2005-07/msg00119.html>.
10506
10507	* runtime-po/Makefile.in.in, runtime-po/bison-runtime.pot: Remove.
10508	Now auto-generated.
10509	* PACKAGING: Don't claim that Gawk, GCC, Perl use this method yet.
10510	Fix typos in explanations of the runtime file.
10511	* bootstrap: Change gettext keyword from YYI18N to YY_.
10512	Use standard Makefile.in.in in runtime-po, since we'll arrange
10513	for backward-compatible bison-runtime.po files in a different way.
10514	* data/glr.c (YY_): New macro, from yacc.c.
10515	(yyuserAction, yyreportAmbiguity, yyreportSyntaxError, yyparse):
10516	Translate messages intended for users.
10517	(yyreportSyntaxError): Change "virtual memory" to "memory" to match
10518	the wording in the other skeletons.  We don't know that the memory
10519	is virtual.
10520	* data/lalr1.cc (YY_): Renamed from _.  All uses changed.
10521	Use same method that yacc.c uses.
10522	Don't translate debugging messages.
10523	(yy::yyreport_syntax_error): Put in a FIXME for the i18n stuff;
10524	it doesn't work (yet), and requires C++ expertise to fix.
10525	* data/yacc.c (YY_): Renamed from YY18N.  All uses changed.
10526	Move defn to a more logical place, to be consistent with other
10527	skeletons.
10528	Don't translate debugging messages.
10529	Don't assume line numbers fit in unsigned int; use unsigned long fmts.
10530	* doc/bison.texinfo: Mention <libintl.h>.  Change glibc cross reference
10531	to gettext cross reference.  Add indexing terms.  Mention YYENABLE_NLS.
10532	* runtime-po/POTFILES.in: Add data/glr.c, data/lalr1.cc.
10533
10534	Fix yyerror / yylex test glitches noted by twlevo@xs4all.nl.
10535	* tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Have yyerror return
10536	void, not int.
10537	* tests/glr-regression.at (Badly Collapsed GLR States):
10538	Likewise.
10539	(Improper handling of embedded actions and dollar(-N) in GLR parsers):
10540	yylex should return 0 at EOF rather than aborting.
10541
10542	Improve tests for stack overflow in GLR parser.
10543	Problem reported by twlevo@xs4all.nl.
10544	* data/glr.c (struct yyGLRStack): Remove yyerrflag member.
10545	All uses removed.
10546	(yyStackOverflow): Just longjmp, but with value 2 so that caller
10547	can handle the problem.
10548	(YYCHK1): Use goto (a la yacc.c) rather than setting a flag.
10549	(yyparse): New local variable yyresult to record the result.
10550	Use result of setjmp to set it, rather than storing itinto
10551	struct.
10552	(yyDone): Remove label.
10553	(yyacceptlab, yyabortlab, yyoverflowlab, yyreturn): New labels,
10554	to mimic yacc.c.  Do not discard lookahead if it's EOF (possible
10555	if YYABORT is used).
10556	* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Exit with
10557	yyparse status; put status > 1 into diagnostic.
10558	Check that status==2 works.
10559	* tests/calc.at, tests/cxx-type.at, tests/glr-regression.at:
10560	Use exit status 3 for failure to open (which shouldn't happen).
10561
105622005-07-17  Paul Eggert  <eggert@cs.ucla.edu>
10563
10564	* tests/conflicts.at (%nonassoc and eof):  Don't exit with status
10565	1 on syntax error; just let yyparse do its thing.
10566	* tests/glr-regression.at (Badly Collapsed GLR States): Likewise.
10567	* tests/torture.at (AT_DATA_STACK_TORTURE): Likewise.
10568	(Exploding the Stack Size with Alloca):
10569	(Exploding the Stack Size with Malloc):
10570	Expect exit status 2, not 1, since the parser is supposed to blow
10571	its stack.  Problem reported by twlevo@xs4all.nl.
10572
10573	* data/glr.c (yyparse): Don't assume that the initial calls
10574	to YYMALLOC succeed; in that case, yyparse incorrectly returned 0.
10575	Print a stack-overflow message and fail instead.
10576	Initialize the line-number information before creating the stack,
10577	so that the stack-overflow message can report line zero safely.
10578
105792005-07-14  Paul Eggert  <eggert@cs.ucla.edu>
10580
10581	Fix problems reported by twlevo@xs4all.nl.
10582	* data/glr.c (YYSTACKEXPANDABLE): Don't define if already defined.
10583	(yyuserMerge): Provide a default case if b4_mergers is empty.
10584	* tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Define YYSTACKEXPANDABLE.
10585	* tests/glr-regression.at
10586	(Improper handling of embedded actions and dollar(-N) in GLR parsers):
10587	Add casts to pacify C++ compilers.
10588	* tests/glr-regression.at (Improper merging of GLR delayed action
10589	sets): Declare yylex before using it.
10590	* tests/Makefile.am (maintainer-check-g++): Fix a stray
10591	$(GXX) that escaped the renaming of GXX to CXX.  Remove bogus
10592	test for valgrind; valgrind is independent of g++.
10593	(maintainer-check-posix): Add _POSIX2_VERSION=200112, to check
10594	for compatibility with POSIX 1003.1-2001 (if running coreutils).
10595	* tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Port to stricter C++.
10596	Use a destructor, so that we can expand the stack.  Change
10597	YYSTYPE to char * so that we can free it.  Cast result of malloc.
10598
105992005-07-13  Paul Hilfinger  <hilfingr@CS.Berkeley.EDU>
10600
10601	* data/glr.c (yyuserAction): Fix uninitialized variable that caused
10602	a valgrind failure.  Problem reported by twlevo@xs4all.nl.
10603
106042005-07-13  Paul Eggert  <eggert@cs.ucla.edu>
10605
10606	* PACKAGING: New file, suggested by Bruno Haible and taken from
10607	similar wording in gettext's PACKAGING file.
10608	* NEWS: Mention PACKAGING.
10609	* Makefile.am (EXTRA_DIST): Add PACKAGING.
10610
106112005-07-12  Paul Eggert  <eggert@cs.ucla.edu>
10612
10613	* NEWS: Document recent i18n improvements.
10614	* bootstrap: Get runtime translations into runtime-po.
10615	Create runtime-po files automatically, if possible.
10616	* configure.ac: Invoke BISON_I18N, so that we eat our own dog food.
10617	* data/yacc.c: Rewrite inclusion of <libintl.h> so that ENABLE_NLS
10618	does not infringe on the user's name space.
10619	(YYENABLE_NLS): Renamed from ENABLE_BISON_NLS.
10620	* doc/bison.texinfo (Internationalization): Revamp the English
10621	and Texinfo syntax a bit, to try to make it clearer.
10622	(Bison Options, Option Cross Key): Mention --print-localedir.
10623	* m4/bison-i18n.m4 (BISON_I18N): Rename ENABLE_BISON_NLS to
10624	YYENABLE_NLS.  Quote a bit more.
10625	* runtime-po/.cvsignore: New file.
10626	* runtime-po/Makefile.in.in (mostlyclean): Remove *.old.pot.
10627	* runtime-po/Rules-quot: Remove; now created by bootstrap.
10628	* runtime-po/quot.sed: Likewise.
10629	* runtime-po/boldquot.sed: Likewise.
10630	* runtime-po/en@quot.header: Likewise.
10631	* runtime-po/en@boldquot.header: Likewise.
10632	* runtime-po/insert-header.sin: Likewise.
10633	* runtime-po/remove-potcdate.sin: Likewise.
10634	* runtime-po/Makevars: Likewise.
10635	* runtime-po/LINGUAS: Likewise.
10636	* runtime-po/de.po: Likewise; we will rely on the translation project
10637	to maintain this, so "bootstrap" should get it.
10638	* src/getarg.c (PRINT_LOCALEDIR_OPTION): Let the C compiler determine
10639	its value.
10640	* src/main.c (main): Bind the bison-runtime domain, too.
10641
106422005-07-12  Bruno Haible  <bruno@clisp.org>
10643
10644	* data/yacc.c: Include <libintl.h> when NLS is enabled.
10645	(YYI18N): Renamed from _. Use dgettext when NLS is enabled.
10646	* po/POTFILES.in: Remove autogenerated file src/parse-gram.c.
10647	* runtime-po: New directory.
10648	* runtime-po/Makefile.in.in: New file, copied from po/, with modified
10649	$(DOMAIN).pot-update rule, so that old messages are never dropped.
10650	* runtime-po/Rules-quot: New file, copied from po/.
10651	* runtime-po/quot.sed: Likewise.
10652	* runtime-po/boldquot.sed: Likewise.
10653	* runtime-po/en@quot.header: Likewise.
10654	* runtime-po/en@boldquot.header: Likewise.
10655	* runtime-po/insert-header.sin: Likewise.
10656	* runtime-po/remove-potcdate.sin: Likewise.
10657	* runtime-po/Makevars: New file.
10658	* runtime-po/POTFILES.in: New file.
10659	* runtime-po/LINGUAS: New file.
10660	* runtime-po/bison-runtime.pot: New file.
10661	* runtime-po/de.po: New file.
10662	* m4/bison.m4: New file.
10663	* Makefile.am (SUBDIRS): Add runtime-po.
10664	(aclocaldir, aclocal_DATA): New variables.
10665	* configure.ac: Add AC_CONFIG_FILES of runtime-po/Makefile.in.
10666	Define aclocaldir.
10667	* src/getargs.c (usage): Document --print-localedir option.
10668	(PRINT_LOCALEDIR_OPTION): New enum item.
10669	(long_options): Add --print-localedir option.
10670	(getargs): Handle --print-localedir option.
10671	* doc/bison.texinfo (Bison Parser): Remove paragraph about _().
10672	(Internationalization): New section.
10673
106742005-07-12  Akim Demaille  <akim@epita.fr>
10675
10676	* src/symtab.h, src/symtab.c (symbol_print): Swap the arguments,
10677	for consistency with the rest of the code.
10678	* src/symlist.h, src/symlist.c (symbol_list_print): Ditto.
10679	Add separators.
10680
106812005-07-12  Akim Demaille  <akim@epita.fr>
10682
10683	* src/parse-gram.y: Use %printer instead of YYPRINT.
10684
106852005-07-12  Akim Demaille  <akim@epita.fr>
10686
10687	* src/symtab.h, src/symtab.c (symbol_print): New.
10688	* src/symlist.h, src/symlist.c (symbol_list_print): New.
10689	* src/symlist.c (symbol_list_n_type_name_get): Report the culprit.
10690
106912005-07-12  Akim Demaille  <akim@epita.fr>
10692
10693	* data/glr.c (b4_syncline): Fix (swap) the definitions of
10694	b4_at_dollar and b4_dollar_dollar.
10695
106962005-07-11  Paul Eggert  <eggert@cs.ucla.edu>
10697
10698	* doc/bison.texinfo (Mystery Conflicts): Add reference to DeRemer
10699	and Pennello's paper.
10700
107012005-07-09  Paul Eggert  <eggert@cs.ucla.edu>
10702
10703	* data/yacc.c (yyparse): Undo previous patch.  Instead,
10704	set yylsp[0] and yyvsp[0] only if the initial action
10705	sets yylloc and yylval, respectively.
10706
10707	* data/yacc.c (yyparse): In the initial action, set
10708	yylsp[0] and yyvsp[0] rather than yylloc and yylval.
10709	This avoids the use of undefined variables if the initial
10710	action does not set yylloc and/or yylval.
10711
107122005-07-07  Paul Eggert  <eggert@cs.ucla.edu>
10713
10714	* examples/calc++/calc++-driver.cc, examples/calc++/calc++-driver.hh:
10715	* examples/calc++/calc++-scanner.ll, examples/calc++/calc++.cc:
10716	Remove from CVS.  These files are automatically generated.
10717	* examples/extexi: Clarify that this file is now part of Bison,
10718	not GNU M4, and that it works with any POSIX-compatible Awk.
10719	* examples/calc++/Makefile.am (run_extexi): Remove; not used.
10720	($(calc_extracted)): Renamed from $(calc_sources_extracted),
10721	so that we also get calc++-parser.yy.  Geneate it.
10722	Use $(AWK), not gawk, since any conforming Awk will do.
10723	Put comment before action, since older 'make' can't handle comment
10724	in action.
10725	$(BUILT_SOURCES): List all built sources, not just some of them.
10726	$(MAINTAINERCLEANFILES): Remove *.stamp, and all built sources.
10727	$($(srcdir)/calc++-parser.stamp): Work even if POSIXLY_CORRECT.
10728	$($(calc_sources_generated)): Remove unnecessary test for existence
10729	of target.  (This had a shell syntax error anyway; a stray "x".)
10730	(calc_extracted): List $(srcdir)/calc++-parser.yy, not
10731	calc++-parser.yy.
10732	* examples/.cvsignore, examples/calc++/.cvsignore: New files.
10733
10734	* bootstrap (gnulib_modules): Add gettext, now that it's no longer
10735	implied by the other modules.
10736
107372005-07-06  Akim Demaille  <akim@epita.fr>
10738
10739	Bind examples/calc++ to the package.
10740	* examples/calc++/Makefile: Remove, replaced by...
10741	* examples/calc++/Makefile.am: ... this new file.
10742	* examples/calc++/test: Remove input.
10743	* examples/calc++/compile: Remove.
10744	* examples/Makefile.am: New.
10745	* configure.ac, Makefile.am: Adjust.
10746	* doc/Makefile.am (clean-local): New, for more recent texi2dvis.
10747
107482005-07-05  Paul Eggert  <eggert@cs.ucla.edu>
10749
10750	* data/glr.c (yyFail): Drastically simplify; since the format argument
10751	never had any % directives, we can simply pass it to yyerror.
10752	(yyparse): Use "t a; a=b;" rather than "t a = b;" when a will
10753	be modified later, as that is the usual style in glr.c.
10754	Problems reported by Paul Hilfinger.
10755
10756	Rewrite GLR parser to catch more buffer overrun, storage exhaustion,
10757	and size overflow errors.
10758	* data/glr.c: Include <stdio.h> etc. after user prolog, not before,
10759	in case the user prolog sets feature-test macros like _GNU_SOURCE.
10760	(YYSIZEMAX): New macro.
10761	(yystpcpy): New function, taken from yacc.c.
10762	(struct yyGLRStack.yyspaceLeft): Now size_t, not int.
10763	(yyinitGLRStack, yyfreeGLRstack): Remove unnecessary forward decls,
10764	so that we don't have to maintain their signatures.
10765	(yyFail): Check for buffer overflow, by using vsnprintf rather
10766	than vsprintf.  Allocate a bigger buffer if possible.
10767	Report an error if buffer allocation fails.
10768	(yyStackOverflow): New function.
10769	(yyinitStateSet, yyinitGLRStack): Return a boolean indicating whether
10770	the initialization was successful.  It might fail if storage was
10771	exhausted.
10772	(yyexpandGLRStack): Add more checks for storage allocation failure.
10773	Use yyStackOverflow to report failures.
10774	(yymarkStackDeleted, yyglrShift, yyglrShiftDefer, yydoAction):
10775	(yysplitStack, yyprocessOneStack, yyparse, yypstack):
10776	Don't assume stack number fits in int.
10777	(yysplitStack): Check for storage allocation failure.
10778	(yysplitStack, yyprocessOneStack): Add pure_formals, so that we
10779	can print diagnostics on storage allocation failure.  All callers
10780	changed.
10781	(yyresolveValue): Use yybool for boolean.
10782	(yyreportSyntaxError): Check for size-calculation overflow.
10783	This code is taken from yacc.c.
10784	(yyparse): Check for storage allocation errors when allocating
10785	the initial stack.
10786
107872005-07-05  Akim Demaille  <akim@epita.fr>
10788
10789	Extract calc++ from the documentation.
10790	* doc/bison.texinfo (Calc++): Add the extraction marks.
10791	* examples/extexi: New, from the aborted GNU Programming 2E.
10792	Separate the different paragraph of a file with empty lines.
10793	* examples/Makefile: Use it to extract the whole calc++ example.
10794
107952005-06-24  Akim Demaille  <akim@epita.fr>
10796
10797	* doc/bison.texinfo (C++ Parser Interface): Use defcv to define
10798	class typedefs.
10799
108002005-06-22  Akim Demaille  <akim@epita.fr>
10801
10802	* doc/bison.texinfo (C++ Language Interface): First stab.
10803	(C++ Parsers): Remove.
10804
108052005-06-22  Akim Demaille  <akim@epita.fr>
10806
10807	* data/lalr1.cc (yylex_): Honor %lex-param.
10808
108092005-06-22  Akim Demaille  <akim@epita.fr>
10810
10811	Start a set of simple examples.
10812	* examples/calc++/Makefile, examples/calc++/calc++-driver.cc,
10813	* examples/calc++/calc++-driver.hh,
10814	* examples/calc++/calc++-parser.yy,
10815	* examples/calc++/calc++-scanner.ll, examples/calc++/calc++.cc,
10816	* examples/calc++/compile, examples/calc++/test: New.
10817
108182005-06-09  Paul Eggert  <eggert@cs.ucla.edu>
10819
10820	* data/yacc.c (malloc, free) [defined __cplusplus]: Wrap inside
10821	extern "C" {}.  This fixes a problem reported by Paul Hilfinger,
10822	which stems from the 2005-05-27 patch.
10823
108242005-06-06  Paul Hilfinger  <hilfingr@tully.CS.Berkeley.EDU>
10825
10826	* data/glr.c: Modify treatment of unused parameters to permit use
10827	of g++ (which doesn't allow __attribute__ ((unused)) for parameters).
10828
108292005-05-30  Paul Eggert  <eggert@cs.ucla.edu>
10830
10831	Fix infringement on user name space reported by Janos Zoltan Szabo.
10832	* data/yacc.c (yyparse): strlen -> yystrlen.
10833
108342005-05-30  Akim Demaille  <akim@epita.fr>
10835
10836	* data/lalr1.cc (_): New.
10837	Translate the various messages.
10838
108392005-05-27  Paul Eggert  <eggert@cs.ucla.edu>
10840
10841	Fix infringement on user name space reported by Bruno Haible.
10842	* data/yacc.c (YYSIZE_T): Define first, so that later decls can use it.
10843	Prefer GCC's __SIZE_TYPE__ if available, so that we don't infringe on
10844	the user's name space.
10845	(alloca): Include <stdlib.h> to get it, if it's not built in.
10846	(YYMALLOC, YYFREE): Define only if needed.
10847	(malloc, free): Declare, but only if needed, as this infringes on
10848	the user name space.
10849
108502005-05-25  Paul Eggert  <eggert@cs.ucla.edu>
10851
10852	Fix BeOS, FreeBSD, MacOS porting problems reported by Bruno Haible.
10853	* lib/bitset.c (bitset_print): Don't assume size_t can be printed
10854	with %d format.
10855	* lib/ebitset.c (min, max): Undef before defining.
10856	* lib/vbitset.c (min, max): Likewise.
10857	* lib/subpipe.c (create_subpipe): Save local variables in case
10858	vfork clobbers them.
10859
108602005-05-24  Bruno Haible  <bruno@clisp.org>
10861
10862	* tests/synclines.at (AT_SYNCLINES_COMPILE): Add support for the
10863	error message syntax used by gcc-4.0.
10864
108652005-05-23  Paul Eggert  <eggert@cs.ucla.edu>
10866
10867	* README: Mention m4 1.4.3.  Remove obsolete advice about
10868	Sun Forte Developer 6 update 2, VMS, and MS-DOS.
10869
10870	* bootstrap: Remove workaround for problem I encountered with
10871	gettext 0.14.1; it seems to be fixed now.
10872
108732005-05-22  Paul Eggert  <eggert@cs.ucla.edu>
10874
10875	* NEWS: Version 2.0a.
10876
10877	* src/files.c: Include "stdio-safer.h"; this fixes a typo in
10878	the previous change.
10879
10880	Various maintainer cleanups.
10881	* .cvsignore: Add a.exe, a.out, b.out,, conf[0-9]*, confdefs*,
10882	conftest*, for benefit of CVS commands run at the same time as
10883	"configure".  Add build-aux, since "bootstrap" now creates it and
10884	its subfiles.
10885	* Makefile.cfg (move_if_change): Remove.
10886	* Makefile.maint: Remove the update stuff; we now use "bootstrap".
10887	(ftp-gnu, www-gnu, move_if_change, local_updates, update):
10888	(po_repo, do-po-update, po-update, wget_files, get-targets):
10889	(config.guess-url_prefix, config.sub-url_prefix):
10890	(ansi2knr.c-url_prefix, texinfo.tex-url_prefix):
10891	(standards.texi-url_prefix, make-stds.texi-url_prefix, taget, url):
10892	($(get-targets), cvs-files, automake_repo, wget-update, cvs-update):
10893	Remove.
10894	* configure.ac (AC_CONFIG_AUX_DIR): Change from config to build-aux;
10895	this is now the recommended name.
10896	* config/.cvsignore: Remove config.guess, config.rpath, config.sub,
10897	depcomp, install-sh, mdate-sh, missing, mkinstalldirs, texinfo.tex,
10898	ylwrap.  These files now go into build-aux.
10899	* config/move-if-change: Remove.
10900	* config/prev-version.txt: Bump from 1.75 to 2.0.
10901
10902	* bootstrap: Add stdio-safer, unistd-safer modules.
10903	Remove m4/glibc2.m4 (introduced by latest gnulib, but
10904	we don't need it).
10905	* lib/.cvsignore: Add dup-safer.c, fd-safer.c,
10906	fopen-safer.c, stdio-safer.h, unistd-safer.h.
10907	* lib/subpipe.c: Include "unistd-safer.h".
10908	(create_subpipe): Make sure all the newly-created
10909	file descriptors are > 2, so that diagnostics don't
10910	get sent down them (which might cause Bison to hang, in theory).
10911	* m4/.cvsignore: Add stdio-safer.m4, unistd-safer.m4.
10912	* src/files.c (xfopen): Use fopen_safer, not fopen.
10913
10914	* data/lalr1.cc (yy::]b4_parser_class_name[::parse): Port
10915	yesterday's yacc.c fix.
10916
109172005-05-21  Paul Eggert  <eggert@cs.ucla.edu>
10918
10919	* data/glr.c, data/lalr1.cc: Update copyright date.
10920
10921	Fix a destructor bug reported by Wolfgang Spraul in
10922	<http://lists.gnu.org/archive/html/bug-bison/2005-05/msg00042.html>.
10923	* data/yacc.c (yyabortlab): Don't call destructor, and
10924	don't set yychar to EMPTY.
10925	(yyoverflowlab): Don't call destructor.
10926	(yyreturn): Call destructor, if yychar is neither YYEOF nor YYEMPTY.
10927	* tests/calc.at (AT_CHECK_CALC): Expect one fewer output lines,
10928	since we no longer output the message "discarding lookahead token
10929	end of input ()".
10930
109312005-05-20  Paul Hilfinger  <hilfingr@CS.Berkeley.EDU>
10932
10933	* data/glr.c (YY_SYMBOL_PRINT): Don't print newline at end to
10934	fix a small glitch in debugging output.
10935	(yyprocessOneStack, yyrecoverSyntaxError, yyparse): Print newline
10936	after YY_SYMBOL_PRINT where needed.
10937
10938	(struct yyGLRState): Add some comments.
10939	(struct yySemanticOption): Add some comments.
10940	(union yyGLRStackItem): Add comment.
10941
10942	(yymergeOptionSets): Correct this to properly perform the union,
10943	avoiding infinite reported by Michael Rosien.
10944	Update comment.
10945
10946	* tests/glr-regression.at: Add test for GLR merging error reported
10947	by M. Rosien.
10948
109492005-05-13  Paul Eggert  <eggert@cs.ucla.edu>
10950
10951	* COPYING, ChangeLog, GNUmakefile, HACKING, Makefile.am,
10952	Makefile.cfg, Makefile.maint, NEWS, README, README-alpha,
10953	README-cvs, TODO, bootstrap, configure.ac, data/Makefile.am,
10954	data/README, data/c.m4, data/glr.c, data/lalr1.cc, data/yacc.c,
10955	data/m4sugar/m4sugar.m4, doc/Makefile.am, doc/bison.texinfo,
10956	doc/fdl.texi, doc/gpl.texi, doc/refcard.tex, lib/Makefile.am,
10957	lib/abitset.c, lib/abitset.h, lib/bbitset.h, lib/bitset.c,
10958	lib/bitset.h, lib/bitset_stats.c, lib/bitset_stats.h,
10959	lib/bitsetv-print.c, lib/bitsetv-print.h, lib/bitsetv.c,
10960	lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/get-errno.c,
10961	lib/get-errno.h, lib/lbitset.c, lib/lbitset.h, lib/libiberty.h,
10962	lib/main.c, lib/subpipe.c, lib/subpipe.h, lib/timevar.c,
10963	lib/timevar.def, lib/timevar.h, lib/vbitset.c, lib/vbitset.h,
10964	lib/yyerror.c, m4/cxx.m4, m4/m4.m4, m4/subpipe.m4, m4/timevar.m4,
10965	m4/warning.m4, src/LR0.c, src/LR0.h, src/Makefile.am, src/assoc.c,
10966	src/assoc.h, src/closure.c, src/closure.h, src/complain.c,
10967	src/complain.h, src/conflicts.c, src/conflicts.h, src/derives.c,
10968	src/derives.h, src/files.c, src/files.h, src/getargs.c,
10969	src/getargs.h, src/gram.c, src/gram.h, src/lalr.c, src/lalr.h,
10970	src/location.c, src/location.h, src/main.c, src/muscle_tab.c,
10971	src/muscle_tab.h, src/nullable.c, src/nullable.h, src/output.c,
10972	src/output.h, src/parse-gram.c, src/parse-gram.h,
10973	src/parse-gram.y, src/print.c, src/print.h, src/print_graph.c,
10974	src/print_graph.h, src/reader.c, src/reader.h, src/reduce.c,
10975	src/reduce.h, src/relation.c, src/relation.h, src/scan-gram.l,
10976	src/scan-skel.l, src/state.c, src/state.h, src/symlist.c,
10977	src/symlist.h, src/symtab.c, src/symtab.h, src/system.h,
10978	src/tables.c, src/tables.h, src/uniqstr.c, src/uniqstr.h,
10979	src/vcg.c, src/vcg.h, src/vcg_defaults.h, tests/Makefile.am,
10980	tests/actions.at, tests/c++.at, tests/calc.at, tests/conflicts.at,
10981	tests/cxx-type.at, tests/existing.at, tests/glr-regression.at,
10982	tests/headers.at, tests/input.at, tests/local.at, tests/output.at,
10983	tests/reduce.at, tests/regression.at, tests/sets.at,
10984	tests/synclines.at, tests/testsuite.at, tests/torture.at:
10985	Update FSF postal mail address.
10986
109872005-05-11  Paul Eggert  <eggert@cs.ucla.edu>
10988
10989	* tests/local.at (AT_COMPILE_CXX): Treat LDFLAGS like AT_COMPILE does.
10990	Problem reported by Ralf Menzel.
10991
109922005-05-01  Paul Eggert  <eggert@cs.ucla.edu>
10993
10994	* tests/actions.at: Test that stack overflow invokes destructors.
10995	From Marcus Holland-Moritz.
10996	* data/yacc.c (yyerrlab): Move the code that destroys the stack
10997	from here....
10998	(yyreturn): to here.  That way, destructors are called properly
10999	even if the stack overflows, or the user calls YYACCEPT or
11000	YYABORT.  Stack-overflow problem reported by Marcus Holland-Moritz.
11001	(yyoverflowlab): Destroy the lookahead.
11002
110032005-04-24  Paul Eggert  <eggert@cs.ucla.edu>
11004
11005	* data/yacc.c (YYSTACK_ALLOC_MAXIMUM): Add more-descriptive comment.
11006
110072005-04-17  Paul Eggert  <eggert@cs.ucla.edu>
11008
11009	* NEWS: Bison-generated C parsers no longer quote literal strings
11010	associated with tokens.
11011	* src/output.c (prepare_symbols): Don't escape strings,
11012	since users don't want to see C escapes.
11013	* tests/calc.at (AT_CHECK_CALC): Adjust to lack of quotes
11014	in diagnostics.
11015	* tests/input.at (Torturing the Scanner): Likewise.
11016	* tests/regression.at (Token definitions, Web2c Actions): Likewise.
11017
110182005-04-16  Paul Eggert  <eggert@cs.ucla.edu>
11019
11020	* tests/torture.at (AT_INCREASE_DATA_SIZE): Skip the test if
11021	the data size is known to be too small and we can't increase it.
11022	This works around an HP-UX 11.00 glitch reported by Andrew Benham.
11023
110242005-04-15  Paul Eggert  <eggert@cs.ucla.edu>
11025
11026	* src/parse-gram.y: Include quotearg.h.
11027	(string_as_id): Quote $1 before using it as a key, since the
11028	lexer no longer quotes it for us.
11029	(string_content): Don't strip quotes, since lexer no longer
11030	quotes it for us.
11031	* src/scan-gram.l: Include quotearg.h.
11032	("\""): Omit quote.
11033	("'"<SC_ESCAPED_CHARACTER>): Quote symbol before using it as
11034	a key, since the rest of the lexer doesn't quote it.
11035	* src/symtab.c (symbol_get): Don't quote symbol; caller does it now.
11036	* tests/regression.at (Token definitions): Check for backslashes
11037	in token strings.
11038
11039	* data/yacc.c (YYSTACK_ALLOC_MAXIMUM): New macro.
11040	(YYSIZE_T): Define to unsigned long int when using an older compiler.
11041	(yyparse): Revamp code to generate long syntax error message, to
11042	make it easier to translate, and to avoid problems with arithmetic
11043	overflow.  Change "virtual memory" to "memory" in diagnostic, since
11044	we don't know whether the memory is virtual.
11045
110462005-04-13  Paul Eggert  <eggert@cs.ucla.edu>
11047
11048	* NEWS: Bison-generated C parsers now use the _ macro to
11049	translate strings.
11050	* data/yacc.c (_) [!defined _]: New macro.
11051	All English strings wrapped inside this macro.
11052	* doc/bison.texinfo (Bison Parser): Document _.
11053	* po/POTFILES.in: Include src/parse-gram.c, since it now
11054	includes translateable strings that parse-gram.y doesn't.
11055
110562005-04-12  Paul Eggert  <eggert@cs.ucla.edu>
11057
11058	* src/symtab.c (symbol_make_alias): Call symbol_type_set,
11059	reverting the 2004-10-11 change to this function.
11060	(symbol_check_alias_consistency): Don't call symbol_type_set
11061	if the type name is already correct.
11062	* tests/input.at (Typed symbol aliases): New test, from Tim Van Holder.
11063
110642005-03-25  Paul Eggert  <eggert@cs.ucla.edu>
11065
11066	* tests/regression.at (Token definitions): Don't use a token named
11067	c, as that generates a "#define c ..." that runs afoul of buggy
11068	stdlib.h that uses the identifier c as a member of struct
11069	drand48_data.  Problem reported by Horst Wente.
11070
110712005-03-21  Paul Eggert  <eggert@cs.ucla.edu>
11072
11073	* bootstrap: Change translation URL from
11074	http://www2.iro.umontreal.ca/~gnutra/po/maint/bison/ to
11075	http://www.iro.umontreal.ca/translation/maint/bison/ to avoid
11076	redirection glitches.  Problem reported by twlevo@xs4all.nl.
11077
110782005-03-20  Paul Eggert  <eggert@cs.ucla.edu>
11079
11080	* tests/local.at (AT_COMPILE, AT_COMPILE_CXX): Don't put options
11081	after operands; POSIX says this isn't portable for the c99 command.
11082
110832005-03-18  Paul Eggert  <eggert@cs.ucla.edu>
11084
11085	* tests/glr-regression.at (glr-regr2a.y): Try to dump core
11086	immediately if a data overrun has occurred; this may help us track
11087	down what may be a spurious failure on MacOS.
11088
110892005-03-17  Paul Eggert  <eggert@cs.ucla.edu>
11090
11091	Respond to problems reported by twlevo@xs4all.nl.
11092
11093	* bootstrap: Use "trap - 0" rather than the unportable "trap 0".
11094
11095	* src/vcg.h: Comment fix.
11096	* src/vcg_defaults.h: Parenthesize macro bodies to make them safe.
11097	(G_CMAX): Change to -1 instead of INT_MAX.
11098
11099	* data/yacc.c (yyparse): Omit spaces before #line.
11100
111012005-03-15  Paul Eggert  <eggert@cs.ucla.edu>
11102
11103	* src/tables.c (state_number_to_vector_number): Put it inside an
11104	"#if 0", since it's not currently used.  Problem reported by
11105	Roland McGrath.
11106
111072005-03-06  Paul Eggert  <eggert@cs.ucla.edu>
11108
11109	* src/output.c (escaped_output): Renamed from
11110	escaped_file_name_output, since we now use it for symbol tags as
11111	well.  All uses changed.
11112	(symbol_destructors_output, symbol_printers_output):
11113	Escape symbol tags too.
11114	Problem reported by Matyas Forstner in
11115	<http://lists.gnu.org/archive/html/bug-bison/2005-03/msg00009.html>.
11116
11117	* src/muscle_tab.c (muscle_code_grow): Don't quote numbers; it's
11118	not needed.
11119	* src/output.c (user_actions_output, token_definitions_output,
11120	symbol_destructors_output, symbol_printers_output): Likewise.
11121	* src/reader.c (prologue_augment): Likewise.
11122	* src/scan-gram.l (handle_action_dollar, handle_action_at): Likewise.
11123
11124	* src/vcg.c (output_edge): Don't quote linestyle arg.
11125	Problem reported by twlevo@xs4all.nl.
11126
111272005-02-28  Paul Eggert  <eggert@cs.ucla.edu>
11128
11129	* doc/bison.texinfo (Semantic Tokens): Fix scoping problem in
11130	example, reported by Derek M Jones.  Also, make the example even
11131	more outrageous, to better illustrate how bad the problem is.
11132
111332005-02-24  Paul Eggert  <eggert@cs.ucla.edu>
11134
11135	* doc/bison.texinfo (Mfcalc Symtab): Correct the prototype for
11136	putsym.  Typo reported by Sebastian Piping.
11137
111382005-02-23  Paul Eggert  <eggert@cs.ucla.edu>
11139
11140	* doc/bison.texinfo (Language and Grammar): some -> same
11141	(Epilogue): int he -> in the
11142	Typos reported by Sebastian Piping via Justin Pence.
11143
111442005-02-07  Paul Eggert  <eggert@cs.ucla.edu>
11145
11146	* tests/glr-regression.at (Improper handling of embedded actions
11147	and dollar(-N) in GLR parsers): Renamed from "Improper handling of
11148	embedded actions and $-N in GLR parsers", work around an Autoconf bug
11149	with dollar signs in test names.
11150	* tests/input.at (Invalid dollar-n): Renamed from "Invalid \$n",
11151	for a similar reason.
11152
111532005-01-28  Paul Eggert  <eggert@cs.ucla.edu>
11154
11155	* src/vcg.c (output_graph): G_VIEW -> normal_view in case someone
11156	wants to redefine G_VIEW.
11157
111582005-01-27  Paul Eggert  <eggert@cs.ucla.edu>
11159
11160	* src/vcg.c (get_view_str): Remove case for normal_view.
11161	Problem reported by twlevo@xs4all.nl.
11162
111632005-01-24  Paul Eggert  <eggert@cs.ucla.edu>
11164
11165	* configure.ac (O0CFLAGS, O0CXXFLAGS): Fix quoting bug.
11166	Problem reported by twlevo@xs4all.nl.
11167
11168	* doc/bison.texinfo: Change @dircategory from "GNU programming
11169	tools" to "Software development".  Requested by Richard Stallman
11170	via Karl Berry.
11171
111722005-01-23  Paul Eggert  <eggert@cs.ucla.edu>
11173
11174	* tests/c++.at (AT_CHECK_DOXYGEN): Don't use options after operands.
11175	Problem reported by twlevo@xs4all.nl.
11176
111772005-01-21  Paul Eggert  <eggert@cs.ucla.edu>
11178
11179	* data/yacc.c (YYCOPY, yystpcpy, yyparse): Remove "register"
11180	keyword; it's not needed with modern compilers, and it doesn't
11181	affect correctness with older compilers.  Suggested by
11182	twlevo@xs4all.nl.
11183
111842005-01-17  Paul Eggert  <eggert@cs.ucla.edu>
11185
11186	* data/glr.c (yyuserAction): Add "default: break;" case to pacify
11187	gcc -Wswitch-default.
11188	* data/lalr1.cc (yy::]b4_parser_class_name[::parse): Likewise.
11189	* data/yacc.c (yyparse): Likewise.
11190
111912005-01-12  Paul Eggert  <eggert@cs.ucla.edu>
11192
11193	* src/system.h (OUTPUT_EXT, TAB_EXT): Define only if not defined
11194	already.  Let config.h define any nonstandard values.
11195
111962005-01-10  Paul Eggert  <eggert@cs.ucla.edu>
11197
11198	* tests/calc.at (_AT_DATA_CALC_Y): Use alarm (100), not alarm (10),
11199	for the benefit of slower hosts.  Problem reported by
11200	Nelson H. F. Beebe.
11201
112022005-01-07  Paul Eggert  <eggert@cs.ucla.edu>
11203
11204	* data/yacc.c (yyparse): Pacify non-GCC compilers about yyerrorlab
11205	being defined and not used.
11206	* data/lalr1.cc (yyparse): Likewise.
11207	Use "if (false)" rather than "if (0)".
11208
112092005-01-05  Paul Eggert  <eggert@cs.ucla.edu>
11210
11211	* TODO: Mention that we should allow NUL bytes in tokens.
11212
112132005-01-02  Paul Eggert  <eggert@cs.ucla.edu>
11214
11215	* src/scan-skel.l (<<EOF>>): Don't close standard output.
11216	Problem reported by Hans Aberg.
11217
112182005-01-01  Paul Eggert  <eggert@cs.ucla.edu>
11219
11220	* src/getargs.c (version): Happy new year; update overall
11221	program copyright date from 2004 to 2005.
11222
11223	* src/scan-skel.l ("@output ".*\n): Don't close standard output.
11224	Problem reported by Hans Aberg.
11225	* tests/output.at (AT_CHECK_OUTPUT): New arg SHELLIO.
11226	(Output file names.): Add a test for the case when standard output
11227	is closed.
11228
112292004-12-26  Paul Eggert  <eggert@cs.ucla.edu>
11230
11231	* doc/bison.texinfo (@copying): Update FDL version number to 1.2,
11232	to fix an oversight in the Bison 2.0 manual.
11233
112342004-12-25  Paul Eggert  <eggert@cs.ucla.edu>
11235
11236	* NEWS: Version 2.0.  Reformat the existing news items since
11237	1.875, so that related items are grouped together.
11238	* configure.ac (AC_INIT): Bump version to 2.0.
11239	* src/parse-gram.c, src/parse-gram.h: Regenerate with 2.0.
11240
11241	* tests/torture.at (Exploding the Stack Size with Alloca): Set
11242	YYSTACK_USE_ALLOCA to 1 if __GNUC__ or alloca are defined;
11243	otherwise, we're not testing alloca.  Unfortunately there's no
11244	simple way to consult HAVE_ALLOCA here.
11245
11246	* data/lalr1.cc (yydestruct_): Pacify unused variable warning
11247	for yymsg, too.
11248
11249	* src/LR0.c (new_itemsets): Use memset rather than zeroing by
11250	hand.  This avoids a warning about comparing int to size_t when
11251	GCC warnings are enabled.
11252
112532004-12-22  Paul Eggert  <eggert@cs.ucla.edu>
11254
11255	* NEWS: Bison-generated parsers no longer default to using the
11256	alloca function (when available) to extend the parser stack, due
11257	to widespread problems in unchecked stack-overflow detection.
11258	* data/glr.c (YYMAXDEPTH): Remove undef when zero.  It's the user's
11259	responsibility to set it to a positive value.  This lets the user
11260	specify a value that is not a preprocessor constant.
11261	* data/yacc.c (YYMAXDEPTH): Likewise.
11262	(YYSTACK_ALLOC): Define only if YYSTACK_USE_ALLOCA is nonzero.
11263	* doc/bison.texinfo (Stack Overflow): YYMAXDEPTH no longer needs
11264	to be a compile-time constant.  However, explain the constraints on it.
11265	Also, explain the constraints on YYINITDEPTH.
11266	(Table of Symbols): Explain that alloca is no longer the default.
11267	Explain the user's responsibility if they define YYSTACK_USE_ALLOCA
11268	to 1.
11269
11270	* doc/bison.texinfo (Location Default Action): Mention that n must
11271	be zero when k is zero.  Suggested by Frank Heckenbach.
11272
112732004-12-22  Akim Demaille  <akim@epita.fr>
11274
11275	* data/lalr1.cc (parser::token_number_type, parser::rhs_number_type)
11276	(parser::state_type, parser::semantic_type, parser::location_type):
11277	Private, not public.
11278	(parser::parse): Return ints, not bool.
11279	Returning a bool introduces a problem: 0 corresponds to false, and
11280	it seems weird to return false on success.  Returning true changes
11281	the conventions for yyparse.
11282	Alternatively we could return void and send an exception.
11283	There is no clear consensus (yet?).
11284	(state_stack, semantic_stack, location_stack): Rename as...
11285	(state_stack_type, semantic_stack_type, location_stack_type): these.
11286	Private, not public.
11287	* tests/c++.at: New.
11288	* tests/testsuite.at, tests/Makefile.am: Adjust.
11289
112902004-12-21  Akim Demaille  <akim@epita.fr>
11291
11292	* data/lalr1.cc (parser::parse): Return a bool instead of an int.
11293
112942004-12-21  Akim Demaille  <akim@epita.fr>
11295
11296	Don't impose std::string for filenames.
11297
11298	* data/lalr1.cc (b4_filename_type): New.
11299	(position::filename): Use it.
11300	(parser.hh): Move the inclusion of stack.hh and location.hh below
11301	the user code, so that needed headers for the filename type can be
11302	included first.
11303	Forward declare them before the user code.
11304	* tests/Makefile.am (check-local, installcheck-local): Pass
11305	TESTSUITEFLAGS to the TESTSUITE.
11306
113072004-12-20  Akim Demaille  <akim@epita.fr>
11308
11309	Use more STL like names: my_class instead of MyClass.
11310
11311	* data/lalr1.cc (LocationStack, LocationType, RhsNumberType)
11312	(SemanticStack, SemanticType, StateStack, StateType)
11313	(TokenNumberType, Stack, Slice, Traits, Parser::location)
11314	(Parser::value): Rename as...
11315	(location_stack, location_type, rhs_number_type, semantic_stack)
11316	(semantic_type, state_stack, state_type, token_number_type, stack)
11317	(slice, traits, parser::yylloc, parser::yylval): these.
11318
11319	* tests/calc.at, tests/regression.at, tests/actions.at: Adjust.
11320
113212004-12-19  Paul Eggert  <eggert@cs.ucla.edu>
11322
11323	* data/glr.c (YYLLOC_DEFAULT): Use GNU spacing conventions.
11324	* data/yacc.c (YYLLOC_DEFAULT): Likewise.
11325
113262004-12-17  Paul Eggert  <eggert@cs.ucla.edu>
11327
11328	Remove uses of 'short int' and 'unsigned short int'.  This raises
11329	some arbitrary limits.  It uses more memory but nowadays that's
11330	not much of an issue.
11331
11332	This change does not affect the generated parsers; that's a different
11333	task, as some users will want to conserve memory there.
11334
11335	Ideally we should use size_t to represent all object counts, and
11336	something like ptrdiff_t to represent signed differences of object
11337	counts; but that will require more code-cleanup than I have the
11338	time to do right now.
11339
11340	* src/LR0.c (allocate_itemsets, new_itemsets, save_reductions):
11341	Use size_t, not int or short int, to count objects.
11342	* src/closure.c (nritemset, closure): Likewise.
11343	* src/closure.h (nritemset, closure): Likewise.
11344	* src/nullable.c (nullable_compute): Likewise.
11345	* src/print.c (print_core): Likewise.
11346	* src/print_graph.c (print_core): Likewise.
11347	* src/state.c (state_compare, state_hash): Likewise.
11348	* src/state.h (struct state): Likewise.
11349	* src/tables.c (default_goto, goto_actions): Likewise.
11350
11351	* src/gram.h (rule_number, rule): Use int, not short int.
11352	* src/output.c (prepare_rules): Likewise.
11353	* src/state.h (state_number, STATE_NUMBER_MAXIMUM, transitions,
11354	errs, reductions): Likewise.
11355	* src/symtab.h (symbol_number, SYMBOL_NUMBER_MAXIMUM, struct symbol):
11356	Likewise.
11357	* src/tables.c (vector_number, tally, action_number,
11358	ACTION_NUMBER_MINIMUM): Likewise.
11359	* src/output.c (muscle_insert_short_int_table): Remove.
11360
113612004-12-17  Akim Demaille  <akim@epita.fr>
11362
11363	* data/lalr1.cc: Extensive Doxygenation.
11364	(error_): Rename as...
11365	(error): this, since it is visible to the user.
11366	Adjust callers.
11367	(Parser::message): Now an automatic variable from...
11368	(Parser::yyreport_syntax_error_): here.
11369	* tests/actions.at, tests/calc.at, tests/regression.at: Adjust to
11370	Parser::error.
11371	* tests/input.at: Escape $.
11372
113732004-12-16  Paul Eggert  <eggert@cs.ucla.edu>
11374
11375	* data/glr.c (b4_lhs_value, b4_rhs_value, b4_rhs-location):
11376	Parenthesize rhs to avoid obscure problems with mistakes like
11377	"foo$$bar = foo$1bar;".  Problem reported by twlevo at xs4all.
11378	* data/lalr1.cc (b4_lhs_value, b4_rhs_value, b4_lhs_location,
11379	b4_rhs_location): Likewise.
11380	* data/yacc.c (b4_lhs_value, b4_rhs_value, b4_lhs_location,
11381	b4_rhs_location): Likewise.
11382
113832004-12-16  Akim Demaille  <akim@epita.fr>
11384
11385	* data/lalr1.cc (yyreport_syntax_error_): Catch up with glr.c and
11386	yacc.c: be sure to stay within yycheck_.
11387	* tests/actions.at: Re-enable C++ tests.
11388
113892004-12-16  Akim Demaille  <akim@epita.fr>
11390
11391	* src/print_graph.c (print_graph): Remove layoutalgorithm uses for
11392	real.
11393
113942004-12-16  Akim Demaille  <akim@epita.fr>
11395
11396	Use #define to handle the %name-prefix.
11397
11398	* data/glr.c, data/yacc.c: Comment changes.
11399	* data/lalr1.cc (yylex): Use #define to select the name of yylex,
11400	so that one can refer to yylex in the parser file, and have it
11401	renamed, as is the case with other skeletons.
11402
114032004-12-16  Akim Demaille  <akim@epita.fr>
11404
11405	Move lalr1.cc internals into yy*.
11406
11407	* data/lalr1.cc (semantic_stack_, location_stack_, state_stack_)
11408	(semantic_stack_, location_stack_, pact_, pact_ninf_, defact_)
11409	(pgoto_, defgoto_, table_, table_ninf_, check_, stos_, r1_, r2_)
11410	(name_, rhs_, prhs_, rline_, token_number_, eof_, last_, nnts_)
11411	(empty_, final_, terror_, errcode_, ntokens_)
11412	(user_token_number_max_, undef_token_, n_, len_, state_, nerrs_)
11413	(looka_, ilooka_, error_range_, nerrs_):
11414	Rename as...
11415	(yysemantic_stack_, yylocation_stack_, yystate_stack_)
11416	(yysemantic_stack_, yylocation_stack_, yypact_, yypact_ninf_)
11417	(yydefact_, yypgoto_, yydefgoto_, yytable_, yytable_ninf_)
11418	(yycheck_, yystos_, yyr1_, yyr2_, yyname_, yyrhs_, yyprhs_)
11419	(yyrline_, yytoken_number_, yyeof_, yylast_, yynnts_, yyempty_)
11420	(yyfinal_, yyterror_, yyerrcode_, yyntokens_)
11421	(yyuser_token_number_max_, yyundef_token_, yyn_, yylen_, yystate_)
11422	(yynerrs_, yylooka_, yyilooka_, yyerror_range_, yynerrs_):
11423	these.
11424
114252004-12-15  Paul Eggert  <eggert@cs.ucla.edu>
11426
11427	Fix some problems reported by twlevo at xs4all.
11428	* src/symtab.c (symbol_new): Report an error if the input grammar
11429	contains too many symbols.  This is better than calling abort() later.
11430	* src/vcg.h (enum layoutalgorithm): Remove.  All uses removed.
11431	(struct node, struct graph):
11432	Rename member expand to stretch.  All uses changed.
11433	(struct graph): Remove member layoutalgorithm.  All uses removed.
11434	* src/vcg.c (get_layoutalgorithm_str): Remove.  All uses removed.
11435	* src/vcg_defaults.h (G_STRETCH): Renamed from G_EXPAND.
11436	All uses changed.
11437	(N_STRETCH): Rename from N_EXPAND.  All uses changed.
11438
114392004-12-15  Akim Demaille  <akim@epita.fr>
11440
11441	* data/lalr1.cc: Normalize /** \brief ... */ to ///.
11442	Add more Doxygen comments.
11443	(symprint_, stack_print_, reduce_print_, destruct_, pop)
11444	(report_syntax_error_, translate_): Rename as...
11445	(yysymprint_, yystack_print_, yyreduce_print_, yydestruct_)
11446	(yypop_, yyreport_syntax_error_, yytranslate_): this.
11447
114482004-12-15  Akim Demaille  <akim@epita.fr>
11449
11450	* data/lalr1.cc (lex_): Rename as...
11451	(yylex_): this.
11452	Move the trace here.
11453	Take the %name-prefix into account.
11454	Reported by Alexandre Duret-Lutz.
11455
114562004-12-15  Akim Demaille  <akim@epita.fr>
11457
11458	Simplify the C++ parser constructor.
11459
11460	* data/lalr1.cc (debug_): Rename as...
11461	(yydebug_): so that the parser's internals are always in the yy*
11462	pseudo namespace.
11463	Adjust uses.
11464	(b4_parse_param_decl): Remove the leading comma as it is now only
11465	called as unique argument list.
11466	(Parser::Parser): Remove the constructor accepting a location and
11467	an initial debugging level.
11468	Remove from the other ctor the argument for the debugging level.
11469	(debug_level_type, debug_level, set_debug_level): New.
11470
11471	* tests/actions.at, tests/calc.at, tests/regression.at: Adjust
11472	constructor calls.
11473
114742004-12-15  Akim Demaille  <akim@epita.fr>
11475
11476	Remove b4_root related material: failure experiment
11477	(which goal was to allow to derive from a class).
11478
11479	* data/lalr1.cc (b4_root, b4_param, b4_constructor): Remove
11480	definitions and uses.
11481
114822004-12-14  Paul Eggert  <eggert@cs.ucla.edu>
11483
11484	* data/glr.c (struct yyGLRStack): yyerror_range now has 3 items,
11485	not 2, since it's not portable to subtract 1 from the start of an
11486	array.  The new item 0 is never set or used.  All uses changed.
11487
11488	(yyrecoverSyntaxError): Use YYLLOC_DEFAULT instead of assuming
11489	the default definition of YYLLOC_DEFAULT.  Problem reported
11490	by Frank Heckenbach.
11491
114922004-12-12  Paul Eggert  <eggert@cs.ucla.edu>
11493
11494	* data/glr.c (YYRHSLOC): Don't have two definitions, one for
11495	the normal case and one for the error case.  Just use the
11496	first one uniformly.  Problem reported by Frank Heckenbach.
11497	(YYLLOC_DEFAULT): Use the conventions of yacc.c, so we can
11498	use exactly the same macro in both places.
11499	(yyerror_range): Now of type yyGLRStackItem, not YYLTYPE,
11500	so that the normal-case YYRHSLOC works for the error case too.
11501	All uses changed.
11502	* data/yacc.c (YYRHSLOC): New macro, taken from glr.c.
11503	(YYLLOC_DEFAULT): Use the same macro as glr.c.
11504	* doc/bison.texinfo (Location Default Action): Don't claim that
11505	we have an array of locations.  Use the same macro for both glr
11506	and lalr parsers.  Mention YYRHSLOC.  Mention what happens when
11507	the index is 0.
11508
115092004-12-10  Paul Eggert  <eggert@cs.ucla.edu>
11510
11511	* HACKING: Update email addresses to send announcements to.
11512
11513	* configure.ac (AC_INIT): Bump version to 1.875f.
11514
115152004-12-10  Paul Eggert  <eggert@cs.ucla.edu>
11516
11517	* NEWS: Version 1.875e.
11518	* src/parse-gram.c, src/parse-gram.h: Regenerate with 1.875e.
11519
11520	* src/scan-skel.l: Include "complain.h", for "fatal".
11521
11522	* src/relation.h (relation_print, relation_digraph):
11523	Relation sizes are of type relation_node, not size_t (this is
11524	merely a doc fix, since the two types are equivalent).
11525	(relation_transpose): Relation sizes are of type relation_node,
11526	not int.
11527	* src/relation.c: Likewise.
11528	(top, infinity): Now of type relation_node, not int.
11529	(traverse, relation_transpose): Use relation_node, not int.
11530
11531	* data/glr.c (yyuserAction, yyrecoverSyntaxError): Mark args
11532	with ATTRIBUTE_UNUSED if they're not used, to avoid GCC warning.
11533	(yyparse): Remove unused local introduced in 2004-10-25 patch.
11534
11535	* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): New arg
11536	specifying whether the test should be skipped.  Use it tp
11537	specify that the [%defines %skeleton "lalr1.cc"] tests currently
11538	fail on some hosts, and should be skipped.
11539
115402004-12-08  Paul Eggert  <eggert@cs.ucla.edu>
11541
11542	* src/system.h (CALLOC, MALLOC, REALLOC): Remove.  All callers
11543	changed to use xcalloc, xnmalloc, xnrealloc, respectively,
11544	unless otherwise specified below.
11545
11546	* src/LR0.c (allocate_itemsets): Use xnmalloc, not xcalloc,
11547	to allocate kernel_base, kernel_items, kernel_size, since
11548	they needn't be initialized to 0.
11549	(allocate_storgae): Likewise, for shiftset, redset, shift_symbol.
11550	* src/closure.c (new_closure): Likewise, for itemset.
11551	* src/derives.c (derives_compute): Likewise, for delts, derives, q.
11552	* src/lalr.c (set_goto_map): Likewise, for temp_map.
11553	(initialize_F): Likewise, for reads, edge, reads[i], includes[i].
11554	(build_relations): Likewise for edge, states1, includes.
11555	* src/nullable.c (nullable_compute): Likewise, for squeue, relts.
11556	* src/reader.c (packgram): Likewise, for ritem, rules.
11557	* src/reduce.c (nonterminals_reduce): Likewise for nontermmap.
11558	* src/relation.c (relation_digraph): Likewise for VERTICES.
11559	(relation_transpose): Likewise for new_R, end_R.
11560	* src/symtab.c (symbols_token_translations_init): Likewise for
11561	token_translations.
11562	* src/tables.c (save_row): Likewise for froms, tos, conflict_tos.
11563	(token_actions): Likewise for yydefact, actrow, conflrow,
11564	conflict_list.
11565	(save_column): Likewise for froms[symno], tos[symno].
11566	(goto_actions): Likewise for state_count.
11567	(pack_table): Likewise for base, pos, check.
11568	(tables_generate): Likewise for width.
11569
11570	* src/LR0.c (set_states): Don't reuse kernel_size and kernel_base
11571	for initial core.  Just have a separate core, so we needn't worry
11572	about whether kernel_size and kernel_base are initialized.
11573
11574	* src/LR0.c (shift_symbol, redset, shiftset, kernel_base,
11575	kernel_size, kernel_items): Remove unnecessary initialization.
11576	* src/conflicts.c (conflicts): Likewise.
11577	* src/derives.c (derives): Likewise.
11578	* src/muscle_tablc (muscle_insert): Likewise.
11579	* src/relation.c (relation_digraph): Likewise.
11580	* src/tables.c (froms, tos, conflict_tos, tally, width, actrow, order,
11581	conflrow, conflict_table, conflict_list, table, check):
11582	Likewise.
11583
11584	* src/closure.c (new_closure): Arg is of type unsigned int, not int.
11585	This is because all callers pass unsigned int.
11586	* src/closure.h (new_closure): Likewise.
11587
11588	* src/lalr.c (initialize_F): Initialize reads[i] in all cases.
11589	(build_relations): Initialize includes[i] in all cases.
11590	* src/reader.c (packgram): Always initialize rules[ruleno].prec
11591	and rules[ruleno].precsym.  Initialize members in order.
11592	* src/relation.c (relation_transpose): Always initialize new_R[i]
11593	and end_R[i].
11594	* src/table.c (conflict_row): Initialize 0 at end of conflict_list.
11595
11596	* src/output.c (prepare_actions): Pass 0 instead of conflict_list[0];
11597	conflict_list[0] was always 0, but now it isn't initialized.
11598
11599	* src/table.c (table_grow): When conflict_table grew, the grown
11600	area wasn't cleared.  Fix this.
11601
11602	* lib/.cvsignore: Add strdup.c, strdup.h.
11603	* m4/.cvsignore: Add strdup.m4.
11604
116052004-12-07  Paul Eggert  <eggert@cs.ucla.edu>
11606
11607	* src/lalr.h (GOTO_NUMBER_MAXIMUM): New macro.
11608	* src/lalr.c (set_goto_map): Don't allow ngotos to equal
11609	GOTO_NUMBER_MAXIMUM, since we occasionally compute
11610	ngotos + 1 without checking for overflow.
11611	(build_relations): Use END_NODE, not -1, to denote end of edges.
11612	* src/lalr.c (set_goto_map, map_goto, initialize_F, add_loopback_edge,
11613	build_relations): Use goto_number, not int, for goto numbers.
11614	* src/tables.c (save_column, default_goto): Likewise.
11615
116162004-11-23  Akim Demaille  <akim@epita.fr>
11617
11618	* data/lalr1.cc (YYSTYPE): Define it as is done for C, instead
11619	of #defining from yystype.
11620	Don't typedef yystype, C++ does not need it.
11621	This lets it possible to forward declare it as union.
11622
116232004-11-23  Paul Eggert  <eggert@cs.ucla.edu>
11624
11625	* bootstrap (gnulib_modules): Add extensions.
11626	Problem reported by Jim Meyering.
11627
116282004-11-22  Paul Eggert  <eggert@cs.ucla.edu>
11629
11630	* src/LR0.c, src/closure.c, src/derives.c, src/gram.c,
11631	src/lalr.c, src/nullable.c, src/relation.c, src/scan-skel.l,
11632	src/system.h, src/tables.c: XFREE -> free, to accommodate
11633	recent change to gnulib xalloc.h.
11634	Problem reported by Jim Meyering.
11635
116362004-11-17  Akim Demaille  <akim@epita.fr>
11637
11638	* data/lalr1.cc (symprint_): Use cdebug_ to avoid warnings.
11639
116402004-11-17  Akim Demaille  <akim@epita.fr>,
11641	    Alexandre Duret-Lutz <adl@gnu.org>
11642
11643	* data/lalr1.cc (Parser::yycdebug_): New, a pointer, to allow
11644	changes.
11645	(YYCDEBUG): Adjust.
11646	Use it instead of cdebug_.
11647	(Parser::debug_stream, Parser::set_debug_stream): New.
11648	(Parser::symprint_): Define cdebug_ for temporary backward
11649	compatibility.
11650	* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Use
11651	debug_stream ().
11652
116532004-11-17  Akim Demaille  <akim@epita.fr>
11654
11655	* data/lalr1.cc (Parser:print_): Remove, use %printer instead.
11656	* tests/regression.at (_AT_DATA_DANCER_Y): Adjust.
11657	* tests/calc.at (_AT_DATA_CALC_Y): Ditto.
11658	* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise.
11659
116602004-10-27  Paul Eggert  <eggert@cs.ucla.edu>
11661
11662	* data/glr.c (yyloc_default): Remove; not used.
11663	Problem reported by Frank Heckenbach.
11664
116652004-10-25  Akim Demaille  <akim@epita.fr>
11666
11667	* data/glr.c (YYRHSLOC): Move its definition next to its uses.
11668	Introduce another definition to address simple location arrays.
11669	(yyGLRStack): New member: yyerror_range.
11670	(yyrecoverSyntaxError, yyparse): Update it.
11671	(yyrecoverSyntaxError): Use it when shifting the error token to
11672	have an accurate range, equivalent to the one computed by both
11673	yacc.c and lalr1.cc.
11674	* tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Change its yylex so
11675	that column numbers start at column 0, as per GNU Coding
11676	Standards, the others tests, and the doc.
11677	(_AT_RESOLVED_GLR_OUTPUT_WITH_LOC, _AT_AMBIG_GLR_OUTPUT_WITH_LOC):
11678	Adjust to the above change (first column is 0).
11679	And adjust the location of the "<error>", now covering the whole
11680	line.
11681
116822004-10-22  Akim Demaille  <akim@epita.fr>
11683	and Paul Eggert  <eggert@cs.ucla.edu>
11684
11685	Remove some arbitrary limits on goto numbers and relations.
11686	* src/lalr.c (goto_map, ngotos, from_state, to_state): Omit
11687	initial values, since they're never used.
11688	(set_goto_map): ngotos is now unsigned, so test for overflow
11689	by seeing whether it wraps around to zero.
11690	* src/lalr.h (goto_number): Now size_t, not short int.
11691	(GOTO_NUMBER_MAXIMUM): Remove.
11692	* src/relation.c (relation_print, traverse, relation_transpose):
11693	Check for END_NODE rather than looking at sign.
11694	* src/relation.h (END_NODE): New macro.
11695	(relation_node): Now size_t, not short int.
11696
116972004-10-22  Paul Eggert  <eggert@cs.ucla.edu>
11698
11699	* doc/bison.texinfo (Language and Grammar): In example, "int" is a
11700	keyword, not an identifier.  Problem reported by Baron Schwartz in
11701	<http://lists.gnu.org/archive/html/bug-bison/2004-10/msg00017.html>.
11702
117032004-10-11  Akim Demaille  <akim@epita.fr>
11704
11705	* src/symtab.c (symbol_check_alias_consistency): Also check
11706	type names, destructors, and printers.
11707	Reported by Alexandre Duret-Lutz.
11708	Recode the handling of associativity and precedence in terms
11709	of symbol_precedence_set.
11710	Accept no redeclaration at all, not even equal to the previous
11711	value.
11712	(redeclaration): New.
11713	Use it to factor redeclaration complaints.
11714	(symbol_make_alias): Don't set the type of the alias, let
11715	symbol_check_alias_consistency do it as for other features.
11716	* src/symtab.h (symbol): Add new member prec_location, and
11717	type_location.
11718	* src/symtab.c (symbol_precedence_set, symbol_type_set): Set them.
11719	* tests/input.at (Incompatible Aliases): New.
11720
117212004-10-09  Paul Eggert  <eggert@cs.ucla.edu>
11722
11723	.cvsignore fixes to accommodate gnulib changes,
11724	and the practice of naming build directories "_build".
11725	* .cvsignore: Add "_*".  Sort.
11726	* lib/.cvsignore: Add getopt_.h, xalloc-die.c.
11727	* m4/.cvsignore: Add "*_gl.m4".
11728
117292004-10-06  Akim Demaille  <akim@epita.fr>
11730
11731	* src/parse-gram.y (add_param): Fix the truncation of trailing
11732	spaces.
11733
117342004-10-05  Akim Demaille  <akim@epita.fr>
11735
11736	In Bison 1.875's yacc.c, YYLLOC_DEFAULT was called regardless
11737	whether the reducion was empty or not.  This leaves room to
11738	improve the use of YYLLOC_DEFAULT in such a case.
11739	lalr1.cc is still experimental, so changing this is acceptable.
11740	And finally, there are probably not many users who changed the
11741	handling of locations in GLR, so changing is admissible too.
11742
11743	* data/glr.c, data/lalr1.cc, data/yacc.c (YYLLOC_DEFAULT): On an
11744	empty reduction, set @$ to an empty location ending the previously
11745	stacked symbol.
11746	Adjust uses to make sure the code is triggered on empty
11747	reductions.
11748	* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust the
11749	expected output: empty reductions have empty locations.
11750
117512004-09-29  Akim Demaille  <akim@epita.fr>
11752
11753	* data/lalr1.cc: Move towards a more standard C++ coding style
11754	for templates: Class < T > -> Class<T>.
11755
117562004-09-29  Akim Demaille  <akim@epita.fr>
11757
11758	* data/lalr1.cc: Reinstall the former ctor, for sake of
11759	compatibility, but warn it will be removed.
11760	Move towards a more standard C++ coding style (i.e., type *var ->
11761	type* var).
11762
117632004-09-27  Paul Eggert  <eggert@cs.ucla.edu>
11764
11765	* src/parse-gram.y (add_param): Rewrite to avoid strchr,
11766	since it's less likely to work if NULs are involved in the future.
11767
117682004-09-27  Akim Demaille  <akim@epita.fr>
11769
11770	* data/yacc.c (YY_LOCATION_PRINT): Fix its default declaration.
11771
117722004-09-27  Akim Demaille  <akim@epita.fr>
11773
11774	* data/lalr1.cc (b4_parse_param_decl_1): New.
11775	(b4_parse_param_decl): Use it to have different names between attribute
11776	and argument names.
11777	(b4_cc_constructor_call): Likewise.
11778
117792004-09-24  Akim Demaille  <akim@epita.fr>
11780
11781	* src/parse-gram.y (add_param): Strip the leading and trailing
11782	blanks from a formal argument declaration.
11783	(YY_LOCATION_PRINT): New.
11784
117852004-09-24  Akim Demaille  <akim@epita.fr>
11786
11787	* data/c.m4 (b4_yysymprint_generate): Move the YYINPUT invocation
11788	after the location.
11789
117902004-09-24  Akim Demaille  <akim@epita.fr>
11791
11792	* doc/bison.texinfo (Table of Symbols): Sort.
11793
117942004-09-21  Akim Demaille  <akim@epita.fr>
11795
11796	* data/yacc.c, data/glr.c (b4_at_dollar, b4_dollar_dollar): Remove
11797	the useless parentheses.
11798	Suggested by Paul Eggert.
11799
118002004-09-20  Akim Demaille  <akim@epita.fr>
11801
11802	Let the initial-action act on the look-ahead, and use it for the
11803	"initial push" (corresponding to an hypothetical beginning-of-file).
11804	And let lalr1.cc honor %initial-action.
11805
11806	* doc/bison.texinfo (Initial Action Decl): Clarify, and add an
11807	example.
11808	* data/lalr1.cc (Parser::initlocation_): Remove, bad experiment.
11809	(Parser::Parser): Remove the ctor that used to initialize it.
11810	(Parser::parse): Like in the other skeletons, issue the "starting
11811	parse" message before any action.
11812	Honor %initial-action.
11813	Initialize the stacks with the lookahead.
11814	* data/yacc.c: Let $$ and @$ in %initial-action designate the
11815	look-ahead.
11816	Push them in the stacks.
11817	* tests/actions.at, tests/calc.at: Adjust the C++ ctor invocations.
11818
118192004-09-20  Akim Demaille  <akim@epita.fr>
11820
11821	* doc/bison.texinfo (Initial Action Decl): New.
11822
118232004-09-20  Akim Demaille  <akim@epita.fr>
11824
11825	* data/yacc.c (YY_LOCATION_PRINT): Use YYLTYPE_IS_TRIVIAL as a
11826	clearer criterion to define it.
11827	(parse): Initialize the initial location when YYLTYPE_IS_TRIVIAL.
11828	When reducing on an empty RHS, use the latest stacked location as
11829	location.
11830	yylloc is not always available.
11831	* data/glr.c: Likewise.
11832	Also, honor initial-actions.
11833
118342004-09-20  Akim Demaille  <akim@epita.fr>
11835
11836	* data/yacc.c (YY_LOCATION_PRINT): New.
11837	Define when we know YYLTYPE's structure, i.e., when the default
11838	YYLLOC_DEFAULT is used.
11839	* data/c.m4 (b4_yysymprint_generate): Use it.
11840	* data/lalr1.cc (YYLLOC_DEFAULT): Stop relying on the initial
11841	value of the result.
11842	(error_start_): Replace with...
11843	(error_range_): this location array.
11844	This allows to replace code relying on the implementation of
11845	locations by portable code.
11846	* data/yacc.c (yylerrsp): Replace with...
11847	(yyerror_range): this.
11848	Every time a token is popped, update yyerror_range[0], to have an
11849	accurate location for the error token.
11850	* data/glr.c (YY_LOCATION_PRINT): New.
11851	(yyprocessOneStack): Fix an invocation of YY_SYMBOL_PRINT:
11852	deference a pointer.
11853	* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): No longer
11854	report the location in %printers.
11855
11856	* src/scan-skel.l: Instead of abort, report error messages to ease
11857	understanding skeleton scanning failures.
11858
118592004-09-16  Akim Demaille  <akim@epita.fr>
11860
11861	* data/lalr1.cc (Stack::Iterator, Stack::ConstIterator): Rename as...
11862	(iterator, const_iterator): these, to be more in the C++ spirit.
11863	Also, return reverse iterators so that when displaying the stack
11864	we display its bottom first.
11865	(Parser::stack_print_, Parser::reduce_print_): Match the messages
11866	from yacc.c.
11867	We should probably use vector here though.
11868
118692004-09-16  Akim Demaille  <akim@epita.fr>
11870
11871	Have more complete shift traces.
11872
11873	* data/yacc.c, data/lalr1.c, data/glr.c: Use YY_SYMBOL_PRINT
11874	to report Shifts instead of ad hoc YYDPRINTF invocations,
11875	including for the error token.
11876	* data/lalr1.cc (symprint_): Output the location.
11877	* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): In C++, don't
11878	output the location within the %printer.
11879	Activate GLR tests, at least to make sure they compile properly.
11880	They still don't pass though.
11881	* tests/calc.at: Adjust expect verbose output, since now "Entering
11882	state..." is on a different line than the "Shifting" message.
11883
118842004-09-08  Akim Demaille  <akim@epita.fr>
11885
11886	* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Move the
11887	Bison directive from the Bison file to the invocation of this
11888	macro, so that these directives are passed to
11889	AT_BISON_OPTION_PUSHDEFS to get correct help macros.
11890	Use these helping macros (e.g., AT_LOC, AT_VAL and so forth).
11891	Move the AT_SETUP/AT_CLEANUP outside, to report as test title
11892	the extra Bison directives instead of the whole series.
11893	Change the grammar so that there are recoverable errors, and
11894	unrecoverable errors.  Now we can have the parser give up before
11895	consuming the whole input.  As a result we now can observe that
11896	the lookahead is freed when needed.
11897	Change the parser source to parse argv[1] instead of a hard coded
11898	string.
11899	Simplify yylex, and give a value and location to EOF.
11900	Simplify some invocations of AT_CHECK_PRINTER_AND_DESTRUCTOR that
11901	passed directives already coded in the file.
11902	Add some tests to check the location of "error".
11903	For some tests, the C++ parser is correct, and not yacc.c.
11904	For other tests, they provide different, but unsatisfying, values,
11905	so keep the C++ value so that at least one parser is "correct"
11906	according to the test suite.
11907	(Actions after errors): Remove, this is subsumed by the
11908	AT_CHECK_PRINTER_AND_DESTRUCTOR series.
11909
119102004-09-06  Akim Demaille  <akim@epita.fr>
11911
11912	* data/lalr1.cc: Adjust the indentation of the labels.
11913	(Parser::pop): New.
11914	Use it.
11915
119162004-09-06  Akim Demaille  <akim@epita.fr>
11917
11918	* data/yacc.cc, data/glr.cc (yydestruct): Accept an additional
11919	argument, an informative message.
11920	Call YY_SYMBOL_PRINT.
11921	Adjust all callers: integrate the associated YY_SYMBOL_PRINT.
11922	* data/lalr1.cc (destruct_): Likewise.
11923	In addition, no longer depend on b4_yysymprint_generate and
11924	b4_yydestruct_generate to generate these functions, do it "by
11925	hand".
11926
119272004-09-03  Akim Demaille  <akim@epita.fr>
11928
11929	* data/glr.c, data/lalr1.cc, data/yacc.c: When YYABORT was
11930	invoked, yydestruct the lookahead.
11931	* tests/calc.at (Calculator $1): Update the expected lengths of
11932	traces: there is an added line for the discarded lookahead.
11933	* doc/bison.texinfo (Destructor Decl): Some rewording.
11934	Define "discarded" symbols.
11935
119362004-09-02  Akim Demaille  <akim@epita.fr>
11937
11938	* data/lalr1.cc (translate_, destruct_): No reason to be static.
11939
119402004-09-02  Akim Demaille  <akim@epita.fr>
11941
11942	* data/glr.c, yacc.c (YYDSYMPRINT): Remove, not used.
11943	(YYDSYMPRINTF): Rename as...
11944	(YY_SYMBOL_PRINT): this.
11945	* data/lalr1.cc (YY_SYMBOL_PRINT): New, modeled after the previous
11946	two.
11947	Use it instead of direct symprint_ calls.
11948	(yybackup): Tweak the "Now at end of input" case to match yacc.c's
11949	one.
11950
119512004-09-02  Akim Demaille  <akim@epita.fr>
11952
11953	* data/lalr1.cc (b4_yysymprint_generate): New.
11954	(symprint_): New member function, defined when YYDEBUG.
11955	Use it consistently instead of token/nterm debugging output by
11956	hand.
11957	* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust
11958	%printer calls to use cdebug_ when using lalr1.cc.
11959
119602004-08-30  Florian Krohm  <florian@edamail.fishkill.ibm.com>
11961
11962	* data/glr.c: Guard the declarations of yypstack and yypdumpstack
11963	with #ifdef YYDEBUG.
11964
119652004-08-26  Akim Demaille  <akim@epita.fr>
11966
11967	* doc/bison.texinfo (Implementing Loops): Rename as...
11968	(Implementing Gotos/Loops): this.
11969
119702004-08-13  Paul Eggert  <eggert@cs.ucla.edu>
11971
11972	Adjust to latest gnulib.
11973	* bootstrap (gnulib_modules): Add xalloc-die.
11974	Set LC_ALL=C so that file names sort consistently.
11975	Prefer the gnulib copies of gettext.m4, glibc21.m4,
11976	inttypes_h.m4, lib-ld.m4, lib-prefix.m4, po.m4, stdint_h.m4,
11977	uintmax_t.m4, ulonglong.m4.
11978	(intl_files_to_remove): Add gettext.m4, lib-ld.m4, lib-prefix.m4,
11979	po.m4 since we are now using _gl.m4 instead.
11980
119812004-08-10  Florian Krohm  <florian@edamail.fishkill.ibm.com>
11982
11983	* src/scan-action.l: Remove. Scanning of semantic actions is
11984	handled in scan-gram.l.
11985
119862004-08-07  Florian Krohm  <florian@edamail.fishkill.ibm.com>
11987
11988	* src/scan-gram.l (handle_syncline): Use uniqstr_new not xstrdup.
11989
11990	* src/location.h (struct): The file member is a uniqstr.
11991	(equal_boundaries): Use UNIQSTR_EQ for comparison.
11992
119932004-07-22  Paul Eggert  <eggert@cs.ucla.edu>
11994
11995	Fix bug with non-%union parsers that have printers or destructors,
11996	which led to a Bison core dump.  Reported by Peter Fales in
11997	<http://lists.gnu.org/archive/html/bug-bison/2004-07/msg00014.html>.
11998
11999	* data/c.m4 (b4_symbol_actions): Don't assume %union was used.
12000	* data/lalr1.cc (yystype) [defined YYSTYPE]: Define to YYSTYPE,
12001	not to our own type.
12002	* src/output.c (symbol_destructors_output, symbol_printers_output):
12003	Don't assume %union.
12004	* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR,
12005	AT_CHECK_PRINTER_AND_DESTRUCTOR): New argument
12006	UNION-FLAG.  All callers changed.
12007	(_AT_CHECK_PRINTER_AND_DESTRUCTOR): Don't assume %union.
12008	Use type char, not unsigned int, when declaring an array of char;
12009	this lets us remove a cast.
12010	(Printers and Destructors): Add non-%union test cases.
12011
120122004-06-21  Paul Eggert  <eggert@cs.ucla.edu>
12013
12014	* doc/bison.texinfo: Minor editorial changes, mostly to the new
12015	GLR writeups.  E.g., avoid frenchspacing and the future tense,
12016	change "lookahead" to "look-ahead", and change "wrt" to "with
12017	respect to".
12018
120192004-06-21  Paul Hilfinger  <hilfingr@CS.Berkeley.EDU>
12020
12021	* doc/bison.texinfo (Merging GLR Parses, Compiler Requirements):
12022	New sections, split off from the GLR Parsers section.  Put the new
12023	Simple GLR Parser near the start of the GLR section, for clarity.
12024	Rewrite connective text.
12025
120262004-06-21  Frank Heckenbach  <frank@g-n-u.de>
12027
12028	* doc/bison.texinfo (Simple GLR Parsers): New section.
12029
120302004-06-21  Paul Eggert  <eggert@cs.ucla.edu>
12031
12032	* NEWS, TODO, doc/bison.texinfo:
12033	Use "look-ahead" instead of "lookahead", to be consistent.
12034	* REFERENCES: Fix incorrect reference to DeRemer and Pennello,
12035	while we're fixing "look-ahead".
12036	* src/conflicts.c (shift_set): Renamed from shiftset.
12037	(look_ahead_set): Renamed from lookaheadset.
12038	* src/print.c: Likewise.
12039	* src/getargs.c (report_args): Add "look-ahead" as the new canonical
12040	name for "lookahead".
12041	(report_types, usage): Likewise.
12042	* src/getargs.h (report_look_ahead_tokens): Renamed from
12043	report_lookaheads.
12044	* src/lalr.c (compute_look_ahead_tokens): Renamed from
12045	compute_lookaheads.
12046	(state_look_ahead_tokens_count): Renamed from state_lookaheads_count.
12047	(look_ahead_tokens_print): Renamed from lookaheads_print.
12048	* src/state.c (state_rule_look_ahead_tokens_print): Renamed from
12049	state_rule_lookaheads_print.
12050	* src/state.h: Likewise.
12051	(reductions.look_ahead_tokens): Renamed from lookaheads.
12052	* tests/torture.at (AT_DATA_LOOK_AHEAD_TOKENS_GRAMMAR): Renamed from
12053	AT_DATA_LOOKAHEADS_GRAMMAR.
12054
120552004-06-03  Paul Eggert  <eggert@cs.ucla.edu>
12056
12057	* README: Update location of patched M4 distribution.
12058
120592004-05-30  Albert Chin-A-Young  <china@thewrittenword.com>
12060
12061	Don't assume the C++ compiler takes the same arguments as the C compiler
12062	(trivial change).
12063	* configure.ac (O0CXXFLAGS): New var.
12064	* tests/atlocal.in (CXXFLAGS): Use it.
12065
120662004-05-29  Paul Eggert  <eggert@cs.ucla.edu>
12067
12068	Fix some "make check" problems with C++ reported by
12069	Albert Chin-A-Young for Tru64 C++ in this thread:
12070	http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00049.html
12071
12072	* m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check for std::cerr.
12073	* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
12074	Output to a .cc file for C++, not to a .c file.
12075	* tests/calc.at (AT_CHECK_CALC): Likewise.
12076	* tests/regression.at (AT_CHECK_DANCER): Likewise.
12077	* tests/local.at (AT_COMPILE_CXX): Default to OUTPUT.cc, not OUTPUT.c.
12078
120792004-05-28  Albert Chin-A-Young  <china@thewrittenword.com>
12080
12081	* tests/calc.at, tests/actions.at: Workaround for SGI
12082	C++ compiler.  (trivial change)
12083
120842004-05-27  Paul Eggert  <eggert@cs.ucla.edu>
12085
12086	Spent a few hours checking out which prerequisite versions the
12087	current sources actually require.  I went all the way back to
12088	Gettext 0.10.40, Automake 1.4, and Autoconf 2.57 and investigated
12089	a seemingly endless set of combinations of versions more recent
12090	than that.  The bottom line is that the current sources require
12091	fairly recent versions of the build tools, and it'll be some work
12092	to change this.
12093	* configure.ac (AC_PREREQ): Increase from 2.58 to 2.59.
12094	(AM_INIT_AUTOMAKE): Increase from 1.7 to 1.8.
12095	(AM_GNU_GETTEXT_VERSION): Increase from 0.11.5 to 0.12.
12096	Add comments explaining why those particular versions are
12097	currently needed.
12098
12099	* src/parse-gram.y (lloc_default): Rewrite to avoid compiler bug
12100	in SGI MIPSpro 7.4.1m.  Problem reported by Albert Chin-A-Young in
12101	<http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00037.html>.
12102
12103	* configure.ac (AC_PREREQ): Bump to 2.58, since 2.57 doesn't work
12104	(it fails with a Autoconf-without-aclocal-m4 diagnostic).
12105
121062004-05-26  Paul Eggert  <eggert@cs.ucla.edu>
12107
12108	* configure.ac (AM_GNU_GETTEXT_VERSION): Lower it from 0.14.1 to
12109	0.11.5.  Suggested by Bruno Haible.
12110	* bootstrap: Remove gettext version checking.
12111
12112	* doc/bison.texinfo (Decl Summary): Also mention that %union
12113	can depend on prerequisite types.  Problem reported by Tim
12114	Van Holder.
12115
121162004-05-25  Paul Eggert  <eggert@cs.ucla.edu>
12117
12118	* README: Mention GNU m4 1.4 bugs and Akim's patched version.
12119	* README-alpha: Don't tell people not to package this.
12120
12121	* bootstrap: Don't assume $(...) works; use `...` instead.
12122	Problem reported by Paul Hilfinger.  Also, diagnose non-GNU
12123	gettext better.
12124
12125	* doc/bison.texinfo (Decl Summary, Bison Options): Clarify what's
12126	put into the -d output file, and mention what to do if YYSTYPE is
12127	defined as a macro.
12128
121292004-05-24  Paul Eggert  <eggert@cs.ucla.edu>
12130
12131	Undo change made earlier today: it caused autopoint to not bring
12132	in ABOUT-NLS.  Ouch.  Instead, substitute our own diagnostic for
12133	autopoint's.
12134
12135	* bootstrap: Check that gettext version matches what's in
12136	configure.ac.  Warn users to ignore robots.txt ERROR 404.
12137	* bootstrap: Undo today's earlier change (logged below).
12138	* configure.ac (AM_GNU_GETTEXT_VERSION): Likewise.
12139
12140	The gettext version checking is causing more trouble than it's
12141	curing; remove it.  Problem reported by Paul Hilfinger.
12142
12143	* bootstrap: Issue a warning that one can expect a message
12144	'AM_GNU_GETTEXT is used, but not AM_GNU_GETTEXT_VERSION'.
12145	* configure.ac (AM_GNU_GETTEXT_VERSION): Remove.
12146
121472004-05-23  Paul Eggert  <eggert@cs.ucla.edu>
12148
12149	Ensure that the C++ compiler used for testing actually works on a
12150	simple test program; if not, skip the C++-related tests.  Problem
12151	reported by Vin Shelton in:
12152	http://lists.gnu.org/archive/html/bug-bison/2004-05/msg00026.html
12153
12154	* m4/cxx.m4: New file.
12155	* configure.ac (BISON_TEST_FOR_WORKING_CXX_COMPILER): Add.
12156	* tests/atlocal.in (BISON_CXX_WORKS): Add.
12157	* tests/local.at (AT_COMPILE_CXX): Use it.
12158
121592004-05-21  Paul Eggert  <eggert@cs.ucla.edu>
12160
12161	* data/glr.c (yylloc): Output this macro even if locations are not
12162	being generated, as the GLR parser needs it even in that case.
12163	Problem reported by Troy A. Johnson
12164	<http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=195946>.
12165
12166	* configure.ac (AC_INIT): Update to 1.875e.
12167
121682004-05-21  Paul Eggert  <eggert@cs.ucla.edu>
12169
12170	* NEWS: Version 1.875d.
12171	* configure.ac (AC_INIT): Likewise.
12172	* src/parse-gram.c, src/parse-gram.h: Regenerate with 1.875d.
12173
12174	* configure.ac (--enable-gcc-warnings): Do not enable -Wshadow,
12175	-Wmissing-prototypes, or -Wstrict-prototypes for C++.  The current
12176	lalr1.cc runs afoul of the first, and the last two are no longer
12177	supported by GCC 3.4.0.
12178	* README: Mention GNU m4 1.4 or later; mention m4 patches.
12179	* HACKING: Use ./bootstrap, not "make update" to import foreign files.
12180
121812004-05-06  Paul Eggert  <eggert@cs.ucla.edu>
12182
12183	* src/muscle_tab.c (hash_muscle): Accept and return size_t, not
12184	unsigned int, for compatibility with latest gnulib hash module.
12185	* src/state.c (state_hash, state_hasher): Likewise.
12186	* src/symtab.c (hash_symbol, hash_symbol_hasher): Likewise.
12187	* src/uniqstr.c (hash_uniqstr): Likewise.
12188
121892004-05-03  Paul Eggert  <eggert@cs.ucla.edu>
12190
12191	* NEWS: Unescaped newlines are no longer allowed in char & strings.
12192
12193	* src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER,
12194	SC_CHARACTER,SC_STRING>): Reject unescaped newlines in
12195	character and string literals.
12196	(unexpected_end): New function.
12197	(unexpected_eof): Use it.
12198	(unexpected_newline): New function.
12199	(<INITIAL,SC_AFTER_IDENTIFIER,SC_PRE_CODE>): Coalesce duplicate
12200	actions.
12201
12202	* NEWS: Document %expect-rr.
12203
12204	* bootstrap (--gnulib-srcdir=*, --cvs-user=*):
12205	Fix typo by replacing $1 with $option.
12206	Remove more 'intl'-related files.
12207	Don't DEFUN AM_INTL_SUBDIR twice.
12208
12209	* lib/.cvsignore: Add strndup.h.  Remove memchr.c, memcmp.c,
12210	memrchr.c, strcasecmp.c, strchr.c, strrchr.c, strspn.c, strtol.c,
12211	strtoul.c.
12212	* m4/.cvsignore: Add exitfail.m4, extensions.m4, gnulib.m4,
12213	hard-locale.m4, mbstate_t.m4, strerror_r.m4, strndup.m4,
12214	xstrndup.m4.  Remove glibc21.m4, intdiv0.m4, inttypes-pri.m4,
12215	inttypes.m4, inttypes_h.m4, isc-posix.m4, lcmessage.m4,
12216	stdint_h.m4, uintmax_t.m4, ulonglong.m4.
12217	* src/.cvsignore: Add *.output.
12218
12219	* src/parse-gram.y: Put copyright notice inside %{ %} so it
12220	gets copied to the output file.
12221
122222004-04-28  Paul Eggert  <eggert@twinsun.com>
12223
12224	Get files from the gnulib and po repositories, instead of relying
12225	on them being in our CVS.  Upgrade to latest versions of gnulib
12226	and Automake.
12227
12228	* Makefile.am (SUBDIRS): Remove m4; Automake now does m4.
12229	* bootstrap: Bootstrap from gnulib and po repositories.
12230	Much of this code was stolen from GNU diff and GNU tar's bootstrap.
12231	* README-cvs: Document these changes.  Remove version numbers from
12232	mentions of build tools, since they change so often.  Mention Flex.
12233
12234	* configure.ac (AC_CONFIG_MACRO_DIR): Add, with m4 as arg.
12235	(gl_USE_SYSTEM_EXTENSIONS): Add.
12236	(AC_GNU_SOURCE, AC_AIX, AC_MINIX):
12237	Remove; no longer needed, as gl_USE_SYSTEM_EXTENSIONS
12238	does this for us.
12239	(AC_ISC_POSIX): Remove; we no longer support this
12240	ancient OS, as it gets in the way of latest Autoconf & gnulib.
12241	(AC_HEADER_STDC): Remove: we now assume C89 or better.
12242	(AC_CHECK_HEADERS_ONCE): Use instead of AC_CHECK_HEADERS.
12243	Do not check for C89 headers, except for locale.h which is used
12244	by the Yacc library and must port to K&R hosts.
12245	(AC_CHECK_FUNCS_ONCE): Use instead of AC_CHECK_FUNCS.
12246	Do not check for C89 functions, except for setlocale which is
12247	used by the Yacc library.
12248	(AC_CHECK_DECLS, AC_REPLACE_FUNCS): Remove; no longer needed.
12249	(gl_DIRNAME, gl_ERROR, gl_FUNC_ALLOCA, gl_FUNC_MEMCHR,
12250	gl_FUNC_MEMRCHR, gl_FUNC_STPCPY, gl_FUNC_STRNLEN, gl_FUNC_STRTOL,
12251	gl_GETOPT, gl_HASH, gl_MBSWIDTH, gl_OBSTACK, gl_QUOTE,
12252	gl_QUOTEARG, gl_XALLOC, jm_FUNC_GLIBC_UNLOCKED_IO, jm_FUNC_MALLOC,
12253	AM_GNU_GETTEXT): Remove; now done by:
12254	(GNULIB_AUTOCONF_SNIPPET): Add.  "bootstrap" builds this for us.
12255	(AC_CONFIG_FILES): Remove m4/Makefile, as Automake now does this
12256	for us.
12257
12258	* lib/Makefile.am: Include gnulib.mk, built for us by "bootstrap".
12259	(BUILT_SOURCES, EXTRA_DIST, MOSTLYCLEANFILES):
12260	Define to empty, as gnulib.mk will do the rest for us.
12261	($(libbison_a_OBJECTS), stdbool.h): Remove, as gnulib.mk does this
12262	for us.
12263	(libbison_a_SOURCES): Define to $(lib_SOURCES) now.
12264	(lib_SOURCES): New symbol, containing only the non-gnulib libs.
12265
12266	* src/files.c: Include gnulib's xstrndup.h.
12267
12268	* src/system.h (MALLOC): Use xnmalloc, for better overflow checking.
12269	(REALLOC): Use xnrealloc, for likewise.
12270	(xstrndup, stpcpy): Remove decls, as gnulib does this for us now.
12271	(strnlen, memrchr): Remove decls; functions no longer used.
12272	Include <stpcpy.h>.
12273
12274	* config/depcomp, config/install-sh, lib/alloca.c, lib/argmatch.c,
12275	lib/argmatch.h, lib/basename.c, lib/dirname.c, lib/dirname.h,
12276	lib/error.c, lib/error.h, lib/getopt.c, lib/getopt.h,
12277	lib/getopt1.c, lib/gettext.h, lib/hash.c, lib/hash.h,
12278	lib/malloc.c, lib/mbswidth.c, lib/mbswidth.h, lib/memchr.c,
12279	lib/memcmp.c, lib/memrchr.c, lib/obstack.c, lib/obstack.h,
12280	lib/quote.c, lib/quote.h, lib/quotearg.c, lib/quotearg.h,
12281	lib/realloc.c, lib/stdbool_.h, lib/stpcpy.c, lib/strcasecmp.c,
12282	lib/strchr.c, lib/strncasecmp.c, lib/strnlen.c, lib/strrchr.c,
12283	lib/strspn.c, lib/strtol.c, lib/strtoul.c, lib/unlocked-io.h,
12284	lib/xalloc.h, lib/xmalloc.c, lib/xstrdup.c, lib/xstrndup.c,
12285	m4/Makefile.am, m4/alloca.m4, m4/dirname.m4, m4/dos.m4,
12286	m4/error.m4, m4/getopt.m4, m4/hash.m4, m4/malloc.m4,
12287	m4/mbrtowc.m4, m4/mbswidth.m4, m4/memchr.m4, m4/memcmp.m4,
12288	m4/memrchr.m4, m4/obstack.m4, m4/onceonly.m4, m4/prereq.m4,
12289	m4/quote.m4, m4/quotearg.m4, m4/realloc.m4, m4/stdbool.m4,
12290	m4/stpcpy.m4, m4/strnlen.m4, m4/strtol.m4, m4/strtoul.m4,
12291	m4/unlocked-io.m4, m4/xalloc.m4, po/LINGUAS, po/Makefile.in.in,
12292	po/Makevars, po/da.po, po/de.po, po/es.po, po/et.po, po/fr.po,
12293	po/hr.po, po/id.po, po/it.po, po/ja.po, po/ms.po, po/nl.po,
12294	po/pt_BR.po, po/ro.po, po/ru.po, po/sv.po, po/tr.po:
12295	Remove, as these files are now generated automatically
12296	by bootstrap or automake.
12297
12298	* po/ChangeLog: Remove: all but one entry was a duplicate
12299	of this file, and I moved that 2000-11-02 entry here.
12300
12301	* config/.cvsignore: Add Makefile, depcomp, install-sh.
12302	* lib/.cvsignore: Add alloca.c, alloca.h, alloca_.h, argmatch.c,
12303	argmatch.h, basename.c, dirname.c, dirname.h, error.c, error.h,
12304	exit.h, exitfail.c, exitfail.h, getopt.c, getopt.h, getopt1.c,
12305	getopt_int.h, gettext.h, gnulib.mk, hard-locale.c, hard-locale.h,
12306	hash.c, hash.h, malloc.c, mbswidth.c, mbswidth.h, memchr.c,
12307	memcmp.c, memrchr.c, obstack.c, obstack.h, quote.c, quote.h,
12308	quotearg.c, quotearg.h, realloc.c, stdbool_.h, stpcpy.c, stpcpy.h,
12309	strcasecmp.c, strchr.c, stripslash.c, strncasecmp.c, strndup.c,
12310	strnlen.c, strrchr.c, strspn.c, strtol.c, strtoul.c,
12311	unlocked-io.h, xalloc.h, xmalloc.c, xstrdup.c, xstrndup.c,
12312	xstrndup.h.
12313	* m4/.cvsignore: Remove Makefile, Makefile.in.  Add alloca.m4,
12314	dirname.m4, dos.m4, error.m4, getopt.m4, hash.m4, mbrtowc.m4,
12315	mbswidth.m4, obstack.m4, onceonly.m4, quote.m4, quotearg.m4,
12316	stdbool.m4, stpcpy.m4, strnlen.m4, unlocked-io.m4, xalloc.m4.
12317	* po/.cvsignore: Add *.po, LINGUAS, Makefile.in.in, Makevars.
12318	* src/.cvsignore: Remove *_.c.
12319
12320
12321	* Makefile.maint (GZIP_ENV): Don't use --rsyncable if gzip doesn't
12322	support it.  (The latest stable gzip doesn't.)
12323
123242004-04-27  Paul Eggert  <eggert@twinsun.com>
12325
12326	* data/lalr1.cc (Parser::stos_) [! YYDEBUG]: Define even in this
12327	case, as stos_ is now used by destructors due to the 2004-02-09
12328	change.
12329
12330	Remove more K&R C support.
12331	* lib/libiberty.y (PARAMS): Remove.  All uses removed.
12332	* lib/subpipe.c (errno): Remove decl.
12333	Include <stdlib.h> unconditionally.
12334	(EXIT_FAILURE): Remove macro.
12335	* src/complain.c (vfprintf, strerror): Remove.
12336	* src/system.h: Include limits.h, stdlib.h, string.h, locale.h
12337	unconditionally.
12338	(EXIT_FAILURE, EXIT_SUCCESS, setlocale): Remove defns.
12339	Use latest Autoconf recommendations for including inttypes.h, stdint.h.
12340	(strchr, strspn, memchr): Remove decls.
12341	* tests/calc.at (_AT_DATA_CALC_Y): Include stdlib.h, string.h
12342	unconditionally.  Do not declare perror.
12343	* tests/conflicts.at (%nonassoc and eof): Include stdlib.h
12344	unconditionally.
12345
12346	* src/complain.c (_): Remove useless defn, as system.h defines this.
12347
12348	* lib/bitset.h (__INT_TO_PTR): Remove; workaround no longer needed
12349	with latest obstack.h.
12350	* lib/ebitset.c (ebitset_elt_alloc): Don't bother to cast args
12351	to procedure types, as obstack.h now does that for us.
12352	* lib/lbitset.c (lbitset_elt_alloc): Likewise.
12353
12354	* lib/subpipe.h [HAVE_SYS_TYPES_H]: Include <sys/types.h>,
12355	so that this include file can stand alone.
12356	* lib/subpipe.c: Do not include <sys/types.h>, as subpipe.h
12357	does this now.  Include subpipe.h first after config.h, to
12358	test whether it can stand alone.
12359
12360	* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Don't
12361	declare yyerror when using lalr.cc, as GCC 3.4.0 warns about the
12362	unused declaration.
12363
12364	* tests/synclines.at (%union synch line): Put a dummy member in
12365	the union, because empty unions aren't allowed in C.  Caught
12366	by GCC 3.4.0.
12367
123682004-04-13  Jim Meyering  <jim@meyering.net>
12369
12370	* src/conflicts.c (conflicts_print): Correct format string typo:
12371	use `%%' to produce literal `%'.  (trivial change)
12372
123732004-03-30  Paul Eggert  <eggert@twinsun.com>
12374
12375	* src/getargs.c (version): Update copyright year to 2004.
12376
12377	* data/c.m4 (b4_int_type): Use 'short int' rather than
12378	'short', and similarly for 'long', 'unsigned', etc.
12379	* data/glr.c (YYTRANSLATE, yyconfl, yySymbol, yyItemNum,
12380	yygetLRActions, yyprocessOneStack, yyrecoverSyntaxError,
12381	yy_yypstack, yydumpstack): Likewise.
12382	* data/lalr1.cc (user_token_number_max_, user_token_number_max_,
12383	translate_, seq_, [], pop, Slice, range_, operator+, operator+=):
12384	Likewise.
12385	* data/yacc.c (b4_int_type, yyss, YYSTACK_BYTES, yysigned_char,
12386	yy_stack_print, yyparse): Likewise.
12387	* doc/bison.texinfo (Prologue, Multiple Types): Likewise.
12388	* lib/bbitset.h (bitset_word, BITSET_WORD_BITS): Likewise.
12389	* lib/bitset.c (bitset_print): Likewise.
12390	* lib/bitset_stats.c (bitste_log_histogram_print): Likewise.
12391	* lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
12392	* lib/bitsetv.c (bitsetv_dump): Likewise.
12393	* lib/ebitset.c (EBITSET_ELT_BITS, ebitset_elt_alloc): Likewise.
12394	* lib/lbitset.c (LBITSET_ELT_BITS, lbitset_elt_alloc, debug_lbitset):
12395	Likewise.
12396	* src/LR0.c (allocate_itemsets): Likewise.
12397	* src/gram.h (rule_number, rule): Likewise.
12398	* src/lalr.h (goto_number): Likewise.
12399	* src/nullable.c (nullable_compute): Likewise.
12400	* src/output.c (prepare_rules): Likewise.
12401	* src/relation.c (relation_print, relation_digraph): Likewise.
12402	* src/relation.h (relation_node): Likewise.
12403	* src/state.h (state_number, transitions, errs, reductions,
12404	struct state): Likewise.
12405	* src/symtab.h (symbol_number, struct symbol): Likewise.
12406	* src/tables.c (vector_number, tally, action_number,
12407	default_goto, goto_actions): Likewise.
12408	* tests/existing.at (GNU Cim Grammar): Likewise.
12409	* tests/regression.at (Web2c Actions): Likewise.
12410
12411	* src/output.c (muscle_insert_short_int_table): Renamed from
12412	muscle_insert_short_table.  All uses changed.
12413
124142004-03-25  Paul Hilfinger  <hilfingr@tully.CS.Berkeley.EDU>
12415
12416	* src/parse-gram.y: Define PERCENT_EXPECT_RR.
12417	(declaration): Replace expected_conflicts with expected_sr_conflicts.
12418	Add %expect-rr rule.
12419
12420	* src/scan-gram.l: Recognize %expect-rr.
12421
12422	* src/conflicts.h (expected_sr_conflicts): Rename from
12423	expected_conflicts.
12424	(expected_rr_conflicts): Declare.
12425
12426	* src/conflicts.c (expected_sr_conflicts): Rename from
12427	expected_conflicts.
12428	(expected_rr_conflicts): Define.
12429	(conflicts_print): Check r/r conflicts against expected_rr_conflicts
12430	for GLR parsers.
12431	Use expected_sr_conflicts in place of expected_conflicts.
12432	Warn if expected_rr_conflicts used in non-GLR parser.
12433
12434	* doc/bison.texinfo: Add documentation for %expect-rr.
12435
124362004-03-08  Paul Eggert  <eggert@gnu.org>
12437
12438	Add support for hex token numbers.  Suggested by Odd Arild Olsen in
12439	<http://lists.gnu.org/archive/html/bison-patches/2004-03/msg00000.html>.
12440
12441	* NEWS: Document hexadecimal tokens, no NUL bytes, %destructor
12442	in lalr1.cc.
12443	* doc/bison.texinfo (Token Decl): Add hexadecimal token numbers.
12444	* src/scan-gram.l (scan_integer): New function.
12445	({int}): Use it.
12446	(0[xX][0-9abcdefABCDEF]+): New pattern, to support hex numbers.
12447	(<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>, \\x[0-9abcdefABCDEF]+,
12448	handle_action_dollar, handle_action_at, convert_ucn_to_byte):
12449	Say "long int", not "long", for uniformity with GNU style.
12450
124512004-02-25  Paul Eggert  <eggert@twinsun.com>
12452
12453	* tests/local.at (AT_COMPILE, AT_COMPILE_CXX): Ignore stdout from
12454	compilers.  This fixes a problem with Intel's C++ compiler being
12455	chatty, reported by Guido Trentalancia in
12456	<http://lists.gnu.org/archive/html/bug-bison/2004-02/msg00030.html>.
12457
124582004-02-09  Alexandre Duret-Lutz  <adl@gnu.org>
12459
12460	Support %destructor and merge error locations in lalr1.cc.
12461
12462	* data/lalr1.cc (b4_cxx_destruct_def): New macro.
12463	(Parser::stos_): Define unconditionally.
12464	(Parser::destruct_): New method.  Generate its body with
12465	b4_yydestruct_generate.
12466	(Parser::error_start_): New attribute.
12467	(Parser::parse) <yyerrlab, yyerrlab1>: Call destruct_ on erroneous
12468	token which are discarded.
12469	(Parser::parse) <yyerrlab, yyerrorlab, yyerrlab1>: Update
12470	error_start_ when erroneous token are discarded.
12471	(Parser::parse) <yyerrlab1>: Compute the location of the error
12472	token so that it covers all the discarded tokens.
12473	* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Adjust so
12474	it can be called with `%skeleton "lalr1.cc"', and do that.
12475
124762004-02-02  Paul Eggert  <eggert@twinsun.com>
12477
12478	* src/Makefile.am (AM_CPPFLAGS): New macro.  It mentions
12479	$(top_srcdir)/lib and ../lib.  This fixes a bug reported
12480	by Paul Hilfinger; the old INCLUDES value didn't mention ../lib.
12481	There's no need to mention top_builddir since Automake does that
12482	for us.
12483	(INCLUDES): Remove, as Automake says it's obsolescent.
12484	Contents migrated into AM_CPPFLAGS as described above.
12485	* lib/Makefile.am (INCLUDES): Remove; obsolescent.
12486
124872004-01-14  Paul Hilfinger  <hilfingr@CS.Berkeley.EDU>
12488
12489	* data/glr.c (yytokenName): Bullet-proof against YYEMPTY token.
12490	(yyreportSyntaxError): Handle case where lookahead token is
12491	YYEMPTY.
12492
124932004-01-13  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
12494
12495	* data/glr.c: Put casts on uses of YYREALLOC and YYMALLOC so that
12496	resulting parsers are compilable with C++.
12497
124982003-12-23  Paul Eggert  <eggert@twinsun.com>
12499
12500	* config/depcomp, config/install-sh: Sync with Automake 1.8.
12501	* src/output.c (output_skeleton): Rename local var.
12502	* tests/input.at (Torturing the Scanner): Don't use \x0 or \0 in
12503	Bison tokens, as this runs afoul of the 2003-10-07 change that
12504	disallowed NUL bytes in character constants or string literals.
12505
12506	* tests/local.at: Require Autoconf 2.59's Autotest.
12507	* tests/testsuite.at: Don't include local.at, since we now assume
12508	Autoconf 2.59 or later.  Autoconf 2.59 had some problems with
12509	including it.
12510	* tests/Makefile.am ($(TESTSUITE)): Remove warning about ignoring
12511	multiple inclusion warnings.
12512
125132003-12-02  Akim Demaille  <akim@epita.fr>
12514
12515	* doc/bison.texinfo (How Can I Reset the Parser): More about start
12516	conditions.
12517	From Bruno Haible.
12518
125192003-11-18  Alexandre Duret-Lutz  <adl@gnu.org>
12520
12521	* doc/bison.texinfo (Bison Options): Escape `@' in `$@'.
12522
125232003-10-07  Paul Eggert  <eggert@twinsun.com>
12524
12525	* tests/Makefile.am (clean-local): Don't run 'testsuite --clean'
12526	if testsuite doesn't exist.
12527
12528	* doc/bison.texinfo (Symbols): NUL bytes are not allowed in string
12529	literals, unfortunately.
12530	* src/scan-gram.l (<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>):
12531	Complain about NUL bytes in character constants or string literals.
12532
125332003-10-05  Paul Eggert  <eggert@twinsun.com>
12534
12535	* NEWS: Don't document %no-default-prec, as it's still
12536	too experimental.
12537	* doc/bison.texinfo: Document %no-default-prec only if
12538	the defaultprec flag is set.  Normally it's not.
12539
125402003-10-04  Paul Eggert  <eggert@twinsun.com>
12541
12542	* data/glr.c (b4_rhs_value, b4_rhs_location): Yield a
12543	non-modifiable lvalue, instead of a modifiable one.
12544	* doc/bison.texinfo (Actions): Document that $$ can
12545	be assigned to.  Do not claim that $$ and $N are
12546	array element references: user code should not rely on this.
12547
125482003-10-01  Paul Eggert  <eggert@twinsun.com>
12549
12550	* src/parse-gram.h (PERCENT_NO_DEFAULT_PREC): New token.
12551	(grammar_declaration): Use it.
12552	* src/scan-gram.l: New token %no-default-prec.
12553	* tests/conflicts.at: Revamp tests to use %no-default-prec.
12554	* NEWS, doc/bison.texinfo: Document the above.
12555
125562003-10-01  Akim Demaille  <akim@epita.fr>
12557
12558	VCG no longer supports long_straight_phase.
12559
12560	* src/vcg.c, src/vcg.h: Remove the handling of long_straight_phase.
12561	* src/print_graph.c (print_graph): Adjust.
12562
125632003-09-30  Frank Heckenbach  <frank@g-n-u.de>
12564	and Paul Eggert  <eggert@twinsun.com>
12565
12566	* doc/bison.texinfo (Decl Summary, Contextual Precedence,
12567	Table of Symbols): Document %default-prec.
12568	* src/parse-gram.y (PERCENT_DEFAULT_PREC): New token.
12569	(grammar_declaration): Set default_prec on %default-prec.
12570	* src/scan-gram.l (%default-prec): New token.
12571	* src/reader.h (default_prec): New flag.
12572	* src/reader.c: Likewise.
12573	(packgram): Handle it.
12574	* tests/conflicts.at (%default-prec without %prec,
12575	%default-prec with %prec, %default-prec 1): New tests.
12576
125772003-09-30  Paul Eggert  <eggert@twinsun.com>
12578
12579	* tests/testsuite.at: Include local.at, not input.at, fixing
12580	a typo in the 2003-08-25 patch.
12581
125822003-08-27  Akim Demaille  <akim@epita.fr>
12583
12584	* data/lalr1.cc (yyparse) [__GNUC__]: "Use" yyerrorlab to pacify
12585	GCC warnings.
12586
125872003-08-26  Akim Demaille  <akim@epita.fr>
12588
12589	* config/announce-gen (print_changelog_deltas): Neutralize "<#" as
12590	"<\#" to avoid magic from Gnus when posting parts of this script.
12591
125922003-08-26  Akim Demaille  <akim@epita.fr>
12593
12594	* data/lalr1.cc (Parser::report_syntax_error_): New, extracted from
12595	(Parser::parse): here.
12596	Adjust: nerrs and errstatus is now replaced by...
12597	(Parser::nerrs_, Parser::errstatus_): New.
12598
125992003-08-25  Akim Demaille  <akim@epita.fr>
12600
12601	* config/announce-gen, Makefile.cfg: New.
12602	* Makefile.am: Adjust.
12603	* GNUmakefile, Makefile.maint: Update from CVS Autoconf, but
12604	keeping local WGET and WGETFLAGS modifications from Paul Eggert.
12605
126062003-08-25  Akim Demaille  <akim@epita.fr>
12607
12608	When reducing initial empty rules, Bison parser read an initial
12609	location that is not defined.  This results in garbage, and that
12610	affects Bison's own parser.  Therefore we need (i) to extend Bison
12611	to support a means to initialize this location, and (ii) to use
12612	this CVS Bison to fix CVS Bison's parser.
12613
12614	* src/reader.h, reader.c (epilogue_augment): Remove, replace
12615	with...
12616	* src/muscle_tab.h, src/muscle_tab.c (muscle_code_grow): this.
12617	* src/parse-gram.y: Adjust.
12618	(%initial-action): New.
12619	(%error-verbose): Since we require CVS Bison, there is no reason
12620	not to use it.
12621	* src/scan-gram.l: Adjust.
12622	* src/Makefile.am (YACC): New, to make sure we use our own parser.
12623	* data/yacc.c (yyparse): Use b4_initial_action.
12624
126252003-08-25  Akim Demaille  <akim@epita.fr>
12626
12627	* doc/bison.texinfo: Don't promote stdout for error messages.
12628
126292003-08-25  Akim Demaille  <akim@epita.fr>
12630
12631	* data/lalr1.cc (Parser::reduce_print_): Remove unused yyi.
12632	From Alexandre Duret-Lutz.
12633
126342003-08-25  Akim Demaille  <akim@epita.fr>
12635
12636	Version 1.875c.
12637
126382003-08-25  Akim Demaille  <akim@epita.fr>
12639
12640	* data/lalr1.cc (Parser::stack_print_, YY_STACK_PRINT): New.
12641	Use them.
12642
126432003-08-25  Akim Demaille  <akim@epita.fr>
12644
12645	* data/lalr1.cc (Parser::reduce_print_): New.
12646	Use it.
12647
126482003-08-25  Akim Demaille  <akim@epita.fr>
12649
12650	Have lalr1.cc catch with Paul Eggert's patch to fix the infinite
12651	error recovery loops.  This patch is based on
12652	<http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00000.html>.
12653	Also, augment the similarity between lalr1.cc and yacc.c.
12654	Note: the locations of error recovery rules are not correct yet.
12655
12656	* data/lalr1.cc: Comment changes to augment the similarity between
12657	lalr1.cc and yacc.c.
12658	(YYERROR): Goto to yyerrorlab, not yyerrlab1.
12659	(yyerrlab1): Remove, but where it used to be (now the bottom part of
12660	yyerrlab), when hitting EOF, pop the whole stack here instead of
12661	merely falling through the default error handling mechanism.
12662	(yyerrorlab): New label, with the old contents of YYERROR,
12663	plus the following change: pop the stack of rhs corresponding
12664	to the production that invoked YYERROR.  That is how Yacc
12665	behaves (required by POSIX).
12666	* tests/calc.at (AT_CHECK_CALC_LALR1_CC): No longer expected to
12667	fail.
12668
126692003-08-25  Akim Demaille  <akim@epita.fr>
12670
12671	Tune local.at so that people can "autom4te -l autotest calc.at -o
12672	calc" for instance, to extract a sub test suite.
12673
12674	* tests/testsuite.at: Move the initialization, Autotest version
12675	requirement, and AT_TESTED invocation into...
12676	* tests/local.at: here.
12677	* tests/testsuite.at: Include it for compatibility with Autoconf
12678	2.57.
12679	* tests/Makefile.am ($(TESTSUITE)): Report that the warning should
12680	be ignore.
12681
126822003-08-04  Paul Eggert  <eggert@twinsun.com>
12683
12684	Rework code slightly to avoid gcc -Wtraditional warnings.
12685	* data/glr.c (yyuserMerge): Return void, not YYSTYPE.
12686	The returned value is now stored in *YY0.  All callers changed.
12687	* src/output.c (merge_output): Adjust to the above change.
12688
126892003-07-26  Paul Eggert  <eggert@twinsun.com>
12690
12691	* data/glr.c (YYASSERT): New macro.
12692	(yyfillin, yydoAction, yyglrReduce, yysplitStack,
12693	yyresolveStates, yyprocessOneStack):
12694	Use `YYASSERT (FOO);' rather than `if (! (FOO)) abort ();'.
12695	Derived from a suggestion by Frank Heckenbach.
12696
126972003-07-25  Paul Eggert  <eggert@twinsun.com>
12698
12699	* data/glr.c (yyglrReduce): Don't use C89 string concatenation,
12700	for portability to K&R C (after ansi2knr, presumably).  See
12701	<http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00041.html>
12702	by Frank Heckenbach, though I have omitted the structure-initialization
12703	part of his glr-knr.diff patch since I recall that the Portable
12704	C Compiler didn't require that change.
12705
12706	Let the user specify how to allocate and free memory.
12707	Derived from a suggestion by Frank Heckenbach in
12708	<http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00041.html>.
12709	* data/glr.c (YYFREE, YYMALLOC, YYREALLOC): New macros.
12710	All uses of free, malloc, realloc changed to use these macros,
12711	and unnecessary casts removed.
12712	* data/yacc.c (YYFREE, YYMALLOC): Likewise.
12713
127142003-07-06  Matthias Mann  <MatthiasMann@gmx.de>
12715
12716	* data/lalr1.cc (operator<<(std::ostream&, const Position&)):
12717	use s.empty() rather than s == "" to test for empty string; see
12718	<http://lists.gnu.org/archive/html/bison-patches/2003-07/msg00003.html>
12719	(trivial change)
12720
127212003-06-25  Akim Demaille  <akim@epita.fr>
12722
12723	* config/depcomp, config/install-sh: Update from masters.
12724
127252003-06-20  Paul Eggert  <eggert@twinsun.com>
12726
12727	* data/glr.c (YYLLOC_DEFAULT): Parenthesize arguments as needed,
12728	and return properly parenthesized result.
12729	* data/lalar1.cc (YYLLOC_DEFAULT): Likewise.
12730	* data/yacc.c (YYLLOC_DEFAULT): Likewise.
12731	Remove unnecessary parentheses from uses.
12732	* doc/bison.texinfo (Location Default Action): Describe the
12733	conventions for parentheses.
12734
127352003-06-19  Paul Eggert  <eggert@twinsun.com>
12736
12737	* data/glr.c (yyremoveDeletes, yy_reduce_print, yyglrReduce,
12738	yyreportTree): Do not assume that size_t is the same width as int,
12739	when printing sizes.  Print sizes using an unsigned format.
12740	Problem reported by Frank Heckenbach in
12741	<http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00035.html>.
12742
12743	Port to Forte Developer 7 C compiler.
12744	* data/glr.c (struct YYLTYPE): If locations are not being used,
12745	declare a single dummy member, as empty structs do not conform
12746	to the C standard.
12747	(YYERROR, YYBACKUP): Do not use "do { ...; return foo; } while (0)";
12748	the Forte Developer 7 C compiler complains that end-of-loop
12749	code is not reached.
12750
127512003-06-17  Paul Eggert  <eggert@twinsun.com>
12752
12753	* lib/libiberty.h (PARAMS): Spell argument as Args, not as X, to
12754	avoid warnings from picky compilers about redefinition of PARAMS.
12755
127562003-06-17  Paul Eggert  <eggert@twinsun.com>
12757
12758	Version 1.875b.
12759
12760	* NEWS: Document 1.875b.
12761
12762	* lib/bbitset.h: Do not include config.h; that's the includer's job.
12763	Do not include <sys/types.h>; shouldn't be needed on a C89 host.
12764	* lib/bitset.h (bitset_compatible_p): Indent as per GNU standard.
12765	Don't use 'index' in comments, as it's a builtin fn on some hosts.
12766	* lib/bitset_stats.c: Include gettext.h unconditionally, as
12767	per recent gettext manual's suggestion.
12768	* lib/ebitset.c (ebitset_resize, ebitset_unused_clear):
12769	Use prototypes, not old-style definitions.
12770	* lib/lbitset.c (lbitset_unused_clear): Likewise.
12771	* lib/vbitset.c (vbitset_resize, vbitset_ones, vbitset_zero,
12772	vbitset_empty_p, vbitset_copy1, vbitset_not, vbitset_equal_p,
12773	vbitset_subset_p, vbitset_disjoint_p, vbitset_and, vbitset_and_cmp,
12774	vbitset_andn, vbitset_andn_cmp, vbitset_or, vbitset_or_cmp,
12775	vbitset_xor, vbitset_xor_cmp, vbitset_and_or, vbitset_and_or_cmp,
12776	vbitset_andn_or, vbitset_andn_or_cmp, vbitset_or_and,
12777	vbitset_or_and_cmp, vbitset_copy): Likewise.
12778
12779	* lib/libiberty.h: Do not include config.h; that's the includer's job.
12780	Do not include <stdlib.h>.
12781	(PARAMS): Define unconditionally for C89.
12782	(ATTRIBUTE_NORETURN): Remove.
12783	(ATTRIBUTE_UNUSED): Define unconditionally.
12784
12785	Upgrade to 2003-06-08 libbitset, submitted by Michael Hayes in:
12786	<http://lists.gnu.org/archive/html/bison-patches/2003-06/msg00005.html>
12787	* lib/Makefile.am (bitsets_sources): Add vbitset.c, vbitset.h.
12788	* lib/vbitset.c, lib/vbitset.h: New files.
12789	* lib/abitset.c, lib/bbitset.h, lib/bitset.c, lib/bitset.h,
12790	lib/bitset_stats.c, lib/ebitset.c, lib/lbitset.c: Import
12791	from libbitset.
12792
12793	* doc/bison.texinfo (How Can I Reset the Parser): Renamed from
12794	`How Can I Reset @code{yyparse}', since texinfo does not allow
12795	arbitrary @ in node names.
12796
12797	* m4/Makefile.am (EXTRA_DIST): Add the following files, which
12798	shouldn't be needed according to the gettext 0.12.1 documentation
12799	but which seem to be needed anyway: codeset.m4 glibc21.m4
12800	intdiv0.m4 inttypes-pri.m4 inttypes.m4 inttypes_h.m4 isc-posix.m4
12801	lcmessage.m4 nls.m4 po.m4 stdint_h.m4 uintmax_t.m4 ulonglong.m4.
12802	* po/Makefile.in.in: Upgrade to gettext 0.12.1 version.
12803
12804	* lib/.cvsignore: Add stdbool.h.
12805	* m4/.cvsignore: Add nls.m4, po.m4.
12806
12807	Upgrade to CVS gnulib.
12808	* stdbool_.h: File renamed from stdbool.h.in.
12809	* configure.ac (AM_STDBOOL_H): Invoke this instead of
12810	AC_HEADER_STDBOOL.
12811	(AM_GNU_GETTEXT): Put brackets around args, as latest manual suggests.
12812	(AM_GNU_GETTEXT_VERSION): Update to 0.12.1.
12813	* lib/Makefile.am (EXTRA_DIST): Add stdbool_.h.
12814	(MOSTLYCLEANFILES): New var.
12815	($(libbison_a_OBJECTS)): Depend on $(STDBOOL_H).
12816	(stdbool.h): New rule.
12817	* lib/dirname.c, lib/dirname.h, lib/hash.c, lib/hash.h,
12818	lib/malloc.c, lib/obstack.h, lib/quote.c, lib/realloc.c,
12819	lib/strcasecmp.c, lib/xalloc.h, m4/alloca.m4, m4/onceonly.m4,
12820	m4/quote.m4: Upgrade to today's gnulib.
12821
12822	* tests/calc.at (AT_CHECK_CALC): New option EXPECTED-TO-FAIL.
12823	(AT_CHECK_CALC_LALR1_CC): Use it, since the C++ LALR parser fails
12824	the tests right now.
12825	* tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Ensure yylex and
12826	yyerror are declared before use; C99 requires this.
12827
128282003-06-09  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
12829
12830	* data/glr.c (YYERROR): Update definition to reset yyerrState to 0
12831	first.
12832	(yyrecoverSyntaxError): Correct the logic for setting and testing
12833	yyerrState.
12834	Correct comment on handling EOF.
12835	Allow states with only a default reduction, rather than failing
12836	(I can't quite reconstruct why these were not allowed before).
12837
12838	Fixes to avoid problem that $-N rules in GLR parsers can cause
12839	buffer overruns, corrupting state.
12840
12841	* src/output.c (prepare_rules): Output max_left_semantic_context
12842	definition.
12843	* src/reader.h (max_left_semantic_context): New variable declaration.
12844	* src/scan-gram.l (max_left_semantic_context): Define.
12845	(handle_action_dollar): Update max_left_semantic_context.
12846	* data/glr.c (YYMAXLEFT): New definition.
12847	(yydoAction): Increase size of yyrhsVals by YYMAXLEFT.
12848	(yyresolveAction): Ditto.
12849
12850	Fixes to problems with location handling in GLR parsers reported by
12851	Frank Heckenbach (2003/06/05).
12852
12853	* data/glr.c (YYLTYPE): Make trivial if locations not used.
12854	(YYRHSLOC): Add parentheses, and define only if locations used.
12855	(YYLLOC_DEFAULT): Add parentheses, and give trivial definition if
12856	locations not used.
12857	(yyuserAction): Use YYLLOC_DEFAULT to set *yylocp.
12858	(yydoAction): Remove redundant initialization of *yyvalp and *yylocp.
12859
12860	* tests/cxx-type.at: Exercise location information; update tests
12861	to differentiate output with and without locations.
12862	Remove forward declarations of yylex and yyerror---caused errors
12863	because default YYLTYPE not yet defined.
12864	Change semantic actions to compute strings, rather than printing
12865	them directly (to test proper passing of semantics values).  Change
12866	output to prefix notation and update test data and expected results.
12867	(yylex): Track locations.
12868	(stmtMerge): Return value rather than printing, and include arguments
12869	in value.
12870
128712003-06-03  Paul Eggert  <eggert@twinsun.com>
12872
12873	Avoid warnings generated by GCC 2.95.4 when Bison is
12874	configured with --enable-gcc-warnings.
12875	* data/lalr1.cc (yy::]b4_parser_class_name[::parse,
12876	yy::]b4_parser_class_name[::translate_,
12877	yy::Stack::operator[] (unsigned),
12878	yy::Stack::operator[] (unsigned) const,
12879	yy::Slice::operator[] (unsigned),
12880	yy::Slice::operator[] (unsigned) const):
12881	Rename local vars to avoid warnings.
12882	* tests/glr-regression.at (Improper handling of embedded actions
12883	and $-N in GLR parsers): Remove unused local variable from yylex.
12884	* tests/regression.at (_AT_DATA_DANCER_Y): Declare yylex to take
12885	(void) as arg when not pure, since we now assume C89 when building
12886	Bison.  Pacify GCC by using parameter.
12887
128882003-06-02  Paul Eggert  <eggert@twinsun.com>
12889
12890	* data/lalr1.cc (yy::Position::lines, yy::Position::columns,
12891	yy::Location::lines, yy::Location::columns): Rename arguments
12892	to avoid shadowing; this removes a warning generated by GCC 3.3.
12893
128942003-06-01  Paul Eggert  <eggert@twinsun.com>
12895
12896	Don't pass C-only warning optins (e.g., -Wmissing-declarations)
12897	to g++, as GCC 3.3 complains if you do it.
12898	* configure.ac (WARNING_CXXFLAGS): New subst.  Set it to
12899	everything that WARNING_CFLAGS has, except omit warnings
12900	not suitable for C++.
12901	(AC_PROG_CXX): Use this instead of AC_CHECK_PROGS([CXX], [g++]).
12902	* tests/atlocal.in (CXXFLAGS): New var.
12903	* tests/local.at (AT_COMPILE_CXX): Use it instead of CFLAGS.
12904
12905	Fix a GLR parser bug I reported in February; see
12906	<http://lists.gnu.org/archive/html/bison-patches/2003-02/msg00008.html>.
12907	The problem was that GLR parsers did not conform to the C standard,
12908	because actions like { $1 = $2 + $3; } expanded to expressions
12909	that invoked YYFILL in separate subexpressions, and YYFILL assigned
12910	to a local variable.  The C standard says that expressions
12911	like (var = f ()) + (var = f ()) have undefined behavior.
12912	Another problem was that GCC sometimes issues warnings that
12913	yyfill and its parameters are unused.
12914
12915	* data/glr.c (yyfillin): Renamed from the old yyfill.  Mark
12916	as possibly unused.
12917	(yyfill): New function.
12918	(YYFILL): Use it.
12919	(yyuserAction): Change type of yynormal to bool, so that it matches
12920	the new yyfill signature.  Mark it as possibly unused.
12921
12922
12923	Follow up on a bug I reported in February, where a Bison-generated
12924	parser can loop.  Provide a test case and a fix for yacc.c.  I
12925	don't have a fix for lalr1.cc or for glr.c, unfortunately.
12926	The original bug report is in:
12927	<http://lists.gnu.org/archive/html/bison-patches/2003-02/msg00044.html>
12928
12929	* data/yacc.c (YYERROR): Now just 'goto yyerrorlab', since the
12930	macro's size was becoming unwieldy.
12931	(yyerrlab): Do not discard an empty lookahead symbol, as this
12932	might destroy garbage.
12933	(yyerrorlab): New label, with the old contents of YYERROR,
12934	plus the following change: pop the stack of rhs corresponding
12935	to the production that invoked YYERROR.  That is how Yacc
12936	behaves, and POSIX requires this behavior.
12937	(yyerrlab1): Use YYPOPSTACK instead of its definiens.
12938	* tests/calc.at (_AT_DATA_CALC_Y): Include unistd.h if available.
12939	Define 'alarm' to do nothing if unistd.h is not available.
12940	Add a new rule "exp: '-' error;" to test the above change to
12941	data/yacc.c.  Use 'alarm' to abort any test taking longer than
12942	10 seconds, as it's probably looping.
12943	(AT_CHECK_CALC): Test recovery from error in new grammar rule.
12944	Also, the new yacc.c generates two fewer diagnostics for an
12945	existing test.
12946
129472003-05-24  Paul Eggert  <eggert@twinsun.com>
12948
12949	* data/glr.c (YYSTACKEXPANDABLE): Do not evaluate
12950	YYSTYPE_IS_TRIVIAL or YYSTYPE_IS_TRIVIAL unless they are defined.
12951	This fixes a problem reported by John Bowman when the Compaq/HP
12952	Alpha cxx compiler happy (e.g. using cxx -D__USE_STD_IOSTREAM
12953	-ansi -Wall -gall).
12954	* data/yacc.c (union yyalloc): Likewise.
12955	(YYCOPY): Do not evaluate __GNUC__ unless it is defined.
12956
12957	Switch from 'int' to 'bool' where that makes sense.
12958
12959	* lib/abitset.c (abitset_test, abitset_empty_p, abitset_equal_p,
12960	abitset_subset_p, abitset_disjoint_p, abitset_and_cmp,
12961	abitset_andn_cmp, abitset_or_cmp, abitset_xor_cmp, abitset_and_or,
12962	abitset_and_or_cmp, abitset_andn_or_cmp, abitset_or_and_cmp):
12963	Return or accept bool, not int.  All callers changed.
12964	* lib/bbitset.h: (bitset_toggle_, bitset_copy_, bitset_and_or_cmp_,
12965	bitset_andn_or_cmp_, bitset_or_and_cmp_): Likewise.
12966	* lib/bitset.c (bitset_only_set_p, bitset_print, bitset_toggle_,
12967	bitset_copy_, bitset_op4_cmp, bitset_and_or_cmp_, bitset_andn_or_cmp_,
12968	bitset_or_and_cmp_): Likewise.
12969	* lib/bitset.h (bitset_test, bitset_only_set_p): Likewise.
12970	* lib/bitset_stats.c (bitset_stats_print, bitset_stats_toggle,
12971	bitset_stats_test, bitset_stats_empty_p, bitset_stats_disjoint_p,
12972	bitset_stats_equal_p, bitset_stats_subset_p, bitset_stats_and_cmp,
12973	bitset_stats_andn_cmp, bitset_stats_or_cmp, bitset_stats_xor_cmp,
12974	bitset_stats_and_or_cmp, bitset_stats_andn_or_cmp,
12975	bitset_stats_or_and_cmp): Likewise.
12976	* lib/ebitset.c (ebitset_elt_zero_p, ebitset_equal_p, ebitset_copy_cmp,
12977	ebitset_test, ebitset_empty_p, ebitset_subset_p, ebitset_disjoint_p,
12978	ebitset_op3_cmp, ebitset_and_cmp, ebitset_andn_cmp, ebitset_or_cmp,
12979	ebitset_xor_cmp): Likewise.
12980	* lib/lbitset.c (lbitset_elt_zero_p, lbitset_equal_p, lbitset_copy_cmp,
12981	lbitset_test, lbitset_empty_p, lbitset_subset_p, lbitset_disjoint_p,
12982	lbitset_op3_cmp, lbitset_and_cmp, lbitset_andn_cmp, lbitset_or_cmp,
12983	lbitset_xor_cmp): Likewise.
12984	* lib/bbitset.h: Include <stdbool.h>.
12985	(struct bitset_vtable): The following members now return bool, not
12986	int: toggle, test, empty_p, disjoint_p, equal_p, subset_p,
12987	and_cmp, andn_cmp, or_cmp, xor_cmp, and_or_cmp, andn_or_cmp,
12988	or_and_cmp).
12989	* src/conflicts.c (count_rr_conflicts): Likewise.
12990	* lib/bitset_stats.h (bitset_stats_enabled): Now bool, not int.
12991	All uses changed.
12992	* lib/ebitset.c (ebitset_obstack_init): Likewise.
12993	* lib/lbitset.c (lbitset_obstack_init): Likewise.
12994	* src/getargs.c (debug_flag, defines_flag, locations_flag,
12995	no_lines_flag, no_parser_flag, token_table_flag, yacc_flag,
12996	graph_flag): Likewise.
12997	* src/getargs.h (debug_flag, defines_flag, locations_flag,
12998	no_lines_flag, no_parser_flag, token_table_flag, yacc_flag,
12999	graph_flag): Likewise.
13000	* src/output.c (error_verbose): Likewise.
13001	* src/output.h (error_verbose): Likewise.
13002	* src/reader.c (start_flag, typed): Likewise.
13003	* src/reader.h (typed): Likewise.
13004	* src/getargs.c (LOCATIONS_OPTION): New constant.
13005	(long_options, getargs): Use it.
13006	* src/lalr.c (build_relations): Use bool, not int.
13007	* src/nullable.c (nullable_compute): Likewise.
13008	* src/print.c (print_reductions): Likewise.
13009	* src/tables.c (action_row, pack_vector): Likewise.
13010	* src/muscle_tab.h (MUSCLE_INSERT_BOOL): New macro.
13011	* src/output.c (prepare): Use it.
13012	* src/output.c (token_definitions_output,
13013	symbol_destructors_output, symbol_destructors_output): Use string,
13014	not boolean integer, to keep track of whether to output separator.
13015	* src/print_graph.c (print_core): Likewise.
13016	* src/state.c (state_rule_lookaheads_print): Likewise.
13017
13018	* config/install-sh: Sync from automake 1.7.5.
13019
130202003-05-14  Paul Eggert  <eggert@twinsun.com>
13021
13022	* src/parse-gram.y (rules_or_grammar_declaration): Require a
13023	semicolon after a grammar declaration, in the interest of possible
13024	future changes to the Bison input language.
13025	Do not allow a stray semicolon at the start of the grammar.
13026	(rhses.1): Allow one or more semicolons after any rule, including
13027	just before "|" as required by POSIX.
13028	* tests/input.at (Torturing the Scanner): Add tests for ";|" in a
13029	grammar.
13030
130312003-05-14  Alexandre Duret-Lutz  <adl@gnu.org>
13032
13033	%parse-param support for lalr1.cc.
13034
13035	* data/lalr1.cc (b4_parse_param_decl, b4_parse_param_cons,
13036	b4_cc_constructor_calls, b4_cc_constructor_call,
13037	b4_parse_param_vars, b4_cc_var_decls, b4_cc_var_decl): New m4
13038	definitions.
13039	(yy::b4_parser_class_name::b4_parser_class_name): Take extra
13040	parse-param arguments.
13041	(yy::b4_parser_class_name): Declare instance variables to
13042	hold parse-param arguments.
13043	* tests/calc.at: s/value/semantic_value/ because value clashes
13044	with a member of yy::b4_parser_class_name.  Adjust C++ code
13045	to handle %parse-param.  Enable %parse-param test in C++.
13046
130472003-05-12  Paul Eggert  <eggert@twinsun.com>
13048
13049	* doc/bison.texinfo (How Can I Reset @code{yyparse}): Reword the
13050	English a bit.  Fix fclose typo.  Change "const char" to "char
13051	const", and use ANSI C rather than K&R for "main".  Suggest
13052	YY_FLUSH_BUFFER over yyrestart (as that is what Flex recommends)
13053	and suggest yy_switch_to_buffer.
13054
130552003-05-05  Paul Eggert  <eggert@twinsun.com>
13056
13057	* lib/bitset.h (__INT_TO_PTR): Define to a value that presumes
13058	C89.  This avoids a diagnostic on compilers that define __STDC__
13059	to 0, fixing a problem with Tru64 cc reported by Martin Mokrejs in
13060	<http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00041.html>.
13061
130622003-05-03  Paul Eggert  <eggert@twinsun.com>
13063
13064	* lib/bitset.h (BITSET_FOR_EACH, BITSET_FOR_EACH_REVERSE):
13065	Do not overrun array bounds.
13066	This should fix a bug reported today by Olatunji Oluwabukunmi in
13067	<http://lists.gnu.org/archive/html/bug-bison/2003-05/msg00004.html>.
13068
130692003-04-29  Akim Demaille  <akim@epita.fr>
13070
13071	* src/gram.h, src/gram.c (pure_parser, glr_parser): Move to...
13072	* src/getargs.c, src/getargs.h: here, as bool, not int.
13073	(nondeterministic_parser): New.
13074	* src/parse-gram.y, src/scan-gram.l: Support
13075	%nondeterministic-parser.
13076	* src/output.c (prepare): Use nondeterministic_parser instead
13077	of glr_parser where appropriate.
13078	* src/tables.c (conflict_row, action_row, save_row)
13079	(token_actions, token_actions, pack_vector): Ditto.
13080
130812003-04-29  Akim Demaille  <akim@epita.fr>
13082
13083	* doc/bison.texinfo (C++ Parsers, Implementing Loops): New.
13084
130852003-04-29  Akim Demaille  <akim@epita.fr>
13086
13087	* tests/calc.at: Also test yacc.c and glr.c (but not lalr1.cc yet)
13088	with %pure-parser and %locations to exercise the patch from Yakov
13089	Markovitch below.
13090
130912003-04-28  Tim Van Holder <tim.van.holder@pandora.be>
13092
13093	* data/yacc.c: (b4_lex_param): Corrected for the case where
13094	%lex-param is provided and %pure-parser isn't.
13095
130962003-04-27  Paul Eggert  <eggert@twinsun.com>
13097
13098	Avoid gcc -Wundef warnings reported by Gerald Pfeifer in
13099	<http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00044.html>.
13100	* data/yacc.c (YYSTACK_ALLOC): Don't evaluate YYSTACK_USE_ALLOCA
13101	if it is not defined.
13102	(YYMAXDEPTH): Don't evaluate YYMAXDEPTH if it is not defined.
13103
131042003-04-26  Paul Eggert  <eggert@twinsun.com>
13105
13106	* data/lalr1.cc (yy::Parser::pact_ninf_, yy::Parser::table_ninf_):
13107	Declare to be of type suitable for the ninf value itself, not of
13108	type suitable for the corresponding table, since the latter might
13109	be unsigned but the ninf value might be negative.  This fixes a
13110	bug reported by Alexandre Duret-Lutz in
13111	<http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00017.html>.
13112
13113	* configure.ac (AC_FUNC_ERROR_AT_LINE): Remove, since gl_ERROR
13114	invokes it.  We shouldn't invoke it twice because it will attempt
13115	to put error.o in the archive twice.  This fixes a glitch reported
13116	by Martin Mokrejs in
13117	<http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00041.html>.
13118
131192003-04-21  Paul Eggert  <eggert@twinsun.com>
13120
13121	* m4/error.m4: Update from Bruno Haible's 2003-04-14 patch
13122	to gnulib.
13123
131242003-04-21  Yakov Markovitch <Markovitch@iso.ru>
13125
13126	* data/glr.c (yyexpandGLRStack) [!YYSTACKEXPANDABLE]:
13127	Fix obvious typo that results in uncompilable GLR parsers
13128	when both %pure-parser and %locations are used.  (trivial change)
13129
131302003-04-17  Paul Eggert  <eggert@twinsun.com>
13131
13132	* src/scan-gram.l: Add %option nounput, since we no longer use unput.
13133	(unexpected_eof): Renamed from unexpected_end_of_file, for brevity.
13134	Do not insert the expected token via unput, as this runs afoul
13135	of a POSIX-compatibility bug in flex 2.5.31.
13136	All uses changed to BEGIN the parent state,
13137	since we no longer insert the expected token via unput.
13138	* tests/regression.at (Invalid inputs): Remove cascaded diagnostic
13139	that is no longer emitted after the above change.
13140
13141	* src/conflicts.c (set_conflicts): Resolve all conflicts, not just
13142	the first one.  This change is from Paul Hilfinger, and it fixes
13143	regression reported by Werner Lemberg in
13144	<http://lists.gnu.org/archive/html/bug-bison/2003-04/msg00026.html>.
13145
13146	(resolve_sr_conflict): Don't invoke state_errs_set
13147	unless one or more tokens have been explicitly made errors.
13148	Otherwise, the above change causes Bison to abort.
13149
13150	* tests/existing.at (GNU pic Grammar): New test case, taken from
13151	Lemberg's email.
13152
131532003-03-31  Akim Demaille  <akim@epita.fr>
13154
13155	* doc/Makefile.am (AM_MAKEINFOFLAGS): Don't split the info file.
13156
131572003-03-31  Akim Demaille  <akim@epita.fr>
13158
13159	* src/output.c (prepare_symbols): Avoid trailing spaces in the
13160	output.
13161
131622003-03-31  Akim Demaille  <akim@epita.fr>
13163
13164	* doc/bison.texinfo (Strings are Destroyed): s/losses/loses/.
13165	From Paul Hilfinger.
13166
131672003-03-29  Akim Demaille  <akim@epita.fr>
13168
13169	* m4/error.m4: Do not put under dynamic conditions some code which
13170	expansion is under static control.
13171
131722003-03-29  Akim Demaille  <akim@epita.fr>
13173
13174	* doc/bison.texinfo (How Can I Reset @code{yyparse}): New.
13175
131762003-03-29  Akim Demaille  <akim@epita.fr>
13177
13178	* doc/bison.texinfo (Strings are Destroyed): New.
13179
131802003-03-13  Paul Eggert  <eggert@twinsun.com>
13181
13182	* .cvsignore: Add configure.lineno.
13183	* src/.cvsignore: Add yacc.
13184	* tests/.cvsignore: Add testsuite.log.
13185	* doc/fdl.texi: Sync with latest FSF version.
13186
131872003-03-12  Paul Eggert  <eggert@twinsun.com>
13188
13189	* scan-gram.l (YY_USER_INIT): Initialize code_start, too.
13190	(<INITIAL><<EOF>>, <SC_PRE_CODE><<EOF>>): Set *loc to the scanner
13191	cursor, instead of leaving it undefined.  This fixes a bug
13192	reported by Tim Van Holder in
13193	<http://lists.gnu.org/archive/html/bug-bison/2003-03/msg00023.html>.
13194	* tests/input.at (Torturing the Scanner): Test the scanner on
13195	an empty input file, which was Tim Van Holder's test case.
13196
13197	* m4/timevar.m4 (BISON_PREREQ_TIMEVAR): When checking whether
13198	<sys/resource.h> can be included, include sys/time.h and
13199	sys/times.h first, if available.  This works around the SunOS
13200	4.1.4 porting bug reported by Bruce Becker in
13201	<http://lists.gnu.org/archive/html/bug-bison/2003-03/msg00018.html>.
13202
13203	* m4/subpipe.m4 (BISON_PREREQ_SUBPIPE): Don't
13204	AC_CHECK_HEADERS([sys/wait.h]), as this interferes with
13205	AC_HEADER_SYS_WAIT.
13206
13207	Merge changes from gnulib.  This was prompted because the CVS
13208	snapshot didn't build on Solaris 7 due to strnlen problems.
13209
13210	These changes need to be merged back into gnulib:
13211	* lib/hash.c: Include <stdbool.h> unconditionally.
13212	* m4/onceonly.m4 (m4_quote): New macro.
13213	(AC_CHECK_HEADERS_ONCE, AC_CHECK_FUNCS_ONCE, AC_CHECK_DECLS_ONCE):
13214	Quote AC_FOREACH variable-expansions properly.
13215	The 2003-01-03 obstack.h change also needs merging.
13216	{end of changes requiring merging}
13217
13218	* lib/stdbool.h.in, m4/alloca.m4, m4/dirname.m4, m4/dos.m4,
13219	m4/getopt.m4, m4/hash.m4, m4/malloc.m4, m4/memchr.m4,
13220	m4/memrchr.m4, m4/obstack.m4, m4/onceonly.m4, m4/quote.m4,
13221	m4/quotearg.m4, m4/realloc.m4, m4/stpcpy.m4, m4/strnlen.m4,
13222	m4/strtol.m4, m4/strtoul.m4, m4/unlocked-io.m4, m4/xalloc.m4:
13223	New files, imported from gnulib.
13224	* m4/Makefile.am (EXTRA_DIST): Add the new m4/*.m4 files mentioned
13225	above.
13226
13227	* lib/mbswidth.c, m4/error.m4, m4/mbrtowc.m4, m4/mbswidth.m4,
13228	m4/memcmp.m4, m4/prereq.m4, m4/stdbool.m4: Update to current
13229	gnulib sources.
13230
13231	* configure.ac (gl_DIRNAME, gl_GETOPT, gl_HASH, gl_QUOTE, gl_XALLOC):
13232	Add.
13233	(gl_ERROR): New, replacing jm_PREREQ_ERROR.
13234	(gl_FUNC_ALLOCA): New, replacing AC_FUNC_ALLOCA.
13235	(gl_FUNC_STPCPY): New, replacing AC_REPLACE_FUNCS(stpcpy).
13236	(gl_FUNC_STRNLEN): New, replacing AC_FUNC_STRNLEN.
13237	(gl_MBSWIDTH): New, replacing jm_PREREQ_MBSWIDTH.
13238	(gl_OBSTACK): New, replacing AC_FUNC_OBSTACK.
13239	(gl_QUOTEARG): New, replacing jm_PREREQ_QUOTEARG.
13240	(jm_FUNC_GLIBC_UNLOCKED_IO, gl_FUNC_STPCPY, gl_FUNC_STRTOL): New.
13241	(jm_FUNC_MALLOC): New, replacing AC_FUNC_MALLOC.
13242	(jm_FUNC_REALLOC): New, replacing AC_FUNC_REALLOC.
13243	(jm_PREREQ_ARGMATCH): Remove.
13244	(AC_REPLACE_FUNCS): Remove memchr, memrchr, stpcpy, strtol, strtoul.
13245	* lib/Makefile.am (libbison_a_SOURCES): Add argmatch.c, argmatch.h.
13246
13247	* src/system.h: Include <stdbool.h> unconditionally.
13248
13249	* lib/bbitset.h: Include <limits.h> unconditionally.  We have been
13250	assuming at least C89 in the bitset code for some time now.
13251
132522003-03-03  Akim Demaille  <akim@epita.fr>
13253
13254	* ro.po: New.
13255
132562003-03-02  Akim Demaille  <akim@epita.fr>
13257
13258	* doc/bison.texinfo (Table of Symbols): Reactivate the
13259	documentation for %lex-param, and %parse-param.
13260
132612003-03-02  Akim Demaille  <akim@epita.fr>
13262
13263	* data/yacc.c, data/glr.c, data/lal1.cc: Use similar code to
13264	generate verbose error messages.
13265	Use the number of tokens as an upper bound in yytname, as it
13266	cannot be a non terminal.
13267
132682003-03-02  Akim Demaille  <akim@epita.fr>
13269
13270	* tests/regression.at (_AT_DATA_DANCER_Y): Fix the expected error
13271	message.
13272
132732003-03-02  Akim Demaille  <akim@epita.fr>
13274
13275	* tests/regression.at (_AT_DATA_DANCER_Y, AT_CHECK_DANCER): New.
13276	Use them to exercise yycheck overrun.
13277	Based on Andrew Suffield's grammar.
13278
132792003-03-02  Akim Demaille  <akim@epita.fr>
13280
13281	Create tests/local.at for Bison generic testing macros.
13282
13283	* tests/calc.at (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): Move to...
13284	* tests/local.at (AT_BISON_OPTION_PUSHDEFS, AT_BISON_OPTION_POPDEFS):
13285	This new file.
13286	* tests/calc.at (AT_CHECK_CALC): Adjust.
13287	* tests/testsuite.at (AT_DATA_GRAMMAR_PROLOGUE, AT_DATA_GRAMMAR)
13288	(AT_COMPILE, AT_COMPILE_CXX, AT_PARSER_CHECK): Move to...
13289	* tests/local.at: here.
13290	(AT_COMPILE_CXX): Tags the tests using it as c++.
13291	Ignore the test if CXX is not functional.
13292
132932003-03-01  Paul Eggert  <eggert@twinsun.com>
13294
13295	* src/scan-gram.l (code_start): Initialize it to scanner_cursor,
13296	not loc->end, since loc->end might contain garbage and this leads
13297	to undefined behavior on some platforms.
13298	(id_loc, token_start): Use (IF_LINTed) initial values that do not
13299	depend on *loc, so that the reader doesn't give the the false
13300	impression that *loc is initialized.
13301	(<INITIAL>"%%"): Do not bother setting code_start, since its value
13302	does not survive the return.
13303
133042003-03-01  Akim Demaille  <akim@epita.fr>
13305
13306	* src/scan-gram.l (code_start): Always initialize it when entering
13307	into yylex, as SC_EPILOGUE is activated *before* the corresponding
13308	yylex invocation.  An alternative would be making it static, but
13309	then it starts with the second %%'s beginning, instead of its end.
13310
133112003-02-28  Paul Eggert  <eggert@twinsun.com>
13312
13313	* lib/mbswidth.c: Include <wchar.h> before "mbswidth.h", to work
13314	around a UnixWare 7.1.1 porting bug reported by John Hughes in
13315	<http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00030.html>.
13316
133172003-02-26  Paul Eggert  <eggert@twinsun.com>
13318
13319	* README: Mention compiler bug in Sun Forte Developer 6 update 2.
13320	Remove Sequent/Pyramid discussion (nobody uses them any more).
13321	Merge VMS and MS-DOS discussion; these ports may well be dead
13322	but let's keep mentioning them for now.  Put <> around email
13323	addresses.  Add copyright notice.
13324
133252003-02-24  Paul Eggert  <eggert@twinsun.com>
13326
13327	* data/glr.c (yy_reduce_print): yylineno -> yylno,
13328	to avoid collision with flex use of yylineno.
13329	Problem reported by Bruce Lilly in
13330	<http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00016.html>.
13331	* data/lalr1.cc (yy::]b4_parser_class_name[::parse): Likewise.
13332	* data/yacc.c (yy_reduce_print): Likewise.
13333
13334	* config/depcomp: Sync with Automake 1.7.3.
13335
133362003-02-21  Akim Demaille  <akim@epita.fr>
13337
13338	* data/lalr1.cc: Use temporary variables instead of casts to
13339	change integer types.
13340	Suggested by Paul Eggert.
13341
133422003-02-21  Akim Demaille  <akim@epita.fr>
13343
13344	* doc/bison.texinfo: Use "location" consistently to refer to @n,
13345	to avoid confusions with lalr1.cc's notion of Position.
13346	Suggested by Paul Eggert.
13347
133482003-02-20  Akim Demaille  <akim@epita.fr>
13349
13350	* data/lalr1.cc (position.hh): Make sure "columns" never pushes
13351	before initial_columns.
13352	(location.hh): Use consistent variable names when defining the
13353	operator<<.
13354	Use "last" so that we subtract from Positions, not from unsigned.
13355
133562003-02-20  Akim Demaille  <akim@epita.fr>
13357
13358	* data/lalr1.cc (position.hh): New subfile, including the extended
13359	and Doxygen'ed documentation of class Position.
13360	(location.hh): Use it.
13361	Document a` la Doxygen.
13362	With the help of Benoit Perrot.
13363
133642003-02-20  Akim Demaille  <akim@epita.fr>
13365
13366	* tests/calc.at (AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): Define
13367	AT_YACC_IF.
13368	Redefine AT_YYERROR_SEES_LOC_IF using it.
13369	(_AT_DATA_CALC_Y): Don't declare yyerror when lalr1.cc, as it is
13370	not defined.
13371	Don't use the location in yy::Parser::error_ and
13372	yy::Parser::print_ when not %locations.
13373	Activate more lalr1.cc tests.
13374
133752003-02-19  Akim Demaille  <akim@epita.fr>
13376
13377	* data/lalr1.cc: When displaying a line number, be sure to make it
13378	an int.
13379
133802003-02-19  Akim Demaille  <akim@epita.fr>
13381
13382	* data/lalr1.cc (b4_stack_depth_init, yy::Parser::initdepth_):
13383	Remove, useless.
13384	(YYABORT, YYACCEPT, YYERROR): New.
13385	* tests/calc.at: Renable the lalr1.cc test.
13386
133872003-02-19  Akim Demaille  <akim@epita.fr>
13388
13389	* tests/calc.at (AT_CHECK_CALC): Check different scenarios of
13390	error recovery, mixing with/without pops and discarding of the
13391	lookahead.
13392	Exercise YYERROR.
13393	Disable the lalr1.cc tests as currently it doesn't support YYERROR.
13394
133952003-02-17  Paul Eggert  <eggert@twinsun.com>
13396
13397	* tests/atlocal.in (LDFLAGS, LIBS): New vars.
13398	* tests/testsuite.at (AT_COMPILE): Use them.
13399	This fixes the testsuite problem reported by Robert Lentz in
13400	<http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00011.html>.
13401
134022003-02-12  Paul Eggert  <eggert@twinsun.com>
13403
13404	* data/yacc.c (yyerrlab) [YYERROR_VERBOSE]:
13405	Avoid subscript error in yycheck.  Bug reported by Andrew Suffield in
13406	<http://lists.gnu.org/archive/html/bug-bison/2003-02/msg00003.html>.
13407	* data/glr.c (yyreportSyntaxError) [YYERROR_VERBOSE]: Likewise.
13408	Check for malloc failure, for consistency with yacc.c.
13409	(yytname_size): Remove, for consistency with yacc.c.
13410
13411	The bug still remains in data/lalr1.cc, as I didn't have time
13412	to fix it there.
13413
134142003-02-06  Akim Demaille  <akim@epita.fr>
13415
13416	* configure.ac (GXX): Rename as...
13417	(CXX): this, to keep the original Autoconf semantics.
13418	Require 2.57.
13419	* data/lalr1.cc: Fix b4_copyright invocations.
13420	If YYDEBUG is not defined, don't depend upon name_ being defined.
13421	(location.hh): Include string and iostream.
13422	(Position::filename): New member.
13423	(Position::Position ()): New.
13424	(operator<< (Position)): New.
13425	(operator- (Position, int)): New.
13426	(Location::first, Location::last): Rename as...
13427	(Location::begin, Location::end): these, to mock the conventional
13428	iterator names.
13429	(operator<< (Location)): New.
13430	* tests/atlocal.in (CXX): New.
13431	* tests/testsuite.at (AT_COMPILE_CXX): New.
13432	* tests/calc.at (_AT_DATA_CALC_Y): Adjust yyerror to report the
13433	locations in a more synthetic way.
13434	(AT_CHECK_PUSHDEFS): AT_YYERROR_SEES_LOC_IF is positive if
13435	lalr1.cc is used.
13436	Adjust the C locations to match those from Emacs: first column is
13437	column 0.
13438	Change all the expected results.
13439	Conform to the GCS: simplify the locations when applicable.
13440	(LOC, VAL, YYLLOC_FORMAL, YYLLOC_ARG, USE_YYLLOC, LEX_FORMALS)
13441	(LEX_ARGS, USE_LEX_ARGS, LEX_PRE_FORMALS, LEX_PRE_ARGS): Replace
13442	these CPP macros with the m4 macros new defined by...
13443	(AT_CHECK_PUSHDEFS): this, i.e.:
13444	(AT_LALR1_CC_IF, AT_PURE_LEX_IF, AT_LOC, AT_VAL, AT_LEX_FORMALS)
13445	(AT_LEX_ARGS, AT_USE_LEX_ARGS, AT_LEX_PRE_FORMALS, AT_LEX_PRE_ARGS)
13446	New macros.
13447	(AT_CHECK_POPDEFS): Undefine them.
13448	(AT_CHECK_CALC_LALR1_CC): New.
13449	Use it for the first lalr1.cc test.
13450
134512003-02-04  Akim Demaille  <akim@epita.fr>
13452
13453	* data/lalr1.cc (YYLLOC_DEFAULT): Fix its definition: be based on
13454	Location as is defined.
13455
134562003-02-04  Akim Demaille  <akim@epita.fr>
13457
13458	* data/lalr1.cc: If YYDEBUG is not defined, don't depend upon
13459	name_ being defined.
13460
134612003-02-03  Paul Eggert  <eggert@twinsun.com>
13462
13463	* src/gram.h (start_symbol): Remove unused decl.
13464
13465	Use more-consistent naming conventions for local vars.
13466
13467	* src/derives.c (derives_compute): Change type of local var from
13468	int to rule_number.
13469	* src/gram.c (grammar_rules_partial_print): Likewise.
13470	* src/print.c (print_core): Likewise.
13471	* src/reduce.c (reduce_grammar_tables): Likewise.
13472
13473	* src/gram.c (grammar_dump): Change name of item_number *
13474	local var from r to rp.
13475	* src/nullable.c (nullable_compute): Likewise.
13476
13477	* src/gram.h (ISTOKEN, ISVAR): Use i, not s, for int var.
13478
13479	* src/gram.h (symbol_number_as_item_number): Use sym, not s,
13480	for symbol or symbol_number var.
13481	* src/reader.c (grammar_start_symbol_set): Likewise.
13482	* src/reader.h (grammar_start_symbol_set, grammar_symbol_append):
13483	Likewise.
13484	* src/state.c (transitions_to): Likewise.
13485	* src/state.h: Likewise.
13486	* src/tables.c (symbol_number_to_vector_number): Likewise.
13487
13488	* src/muscle_tab.h (MUSCLE_OBSTACK_SGROW): Use p, not s, for
13489	char * var.
13490
13491	* src/parse-gram.y (lloc_default): Use loc, not r, for YYLTYPE
13492	var.
13493
13494	* src/scan-gram.l (no_cr_read): Use bytes_read, not s, for size
13495	var.
13496
13497	* src/system.h (xstrndup, strchr, strspn, strnlen, memchr, memrchr):
13498	Use str, not s, for char * var.  Use ch, not c, for character var.
13499	Use size for size var.
13500
13501	* src/uniqstr.c (uniqstr_new, uniqstr_assert): Use str, not s, for
13502	char * var.
13503	(uniqstr_print, uniqst_print_processor): Use ustr, not s, for
13504	uniqstr var.
13505	* src/uniqstr.h: Likewise.
13506
13507	* src/vcg.c (get_color_str, get_textmode_str, get_shape_str,
13508	get_layoutalgorithm_str, get_decision_str, get_orientation_str,
13509	get_node_alignment_str, get_arrow_mode_str, get_crossing_type_str,
13510	get_view_str, get_linestyle_str, get_arrowstyle_str): Rename
13511	param to have same name as that of enum, so that we don't use
13512	"s" to stand for a non-state.
13513
135142003-02-02  Akim Demaille  <akim@epita.fr>
13515
13516	* src/scan-skel.l: Scan more than one inert character per yylex
13517	invocation.
13518
135192003-02-01  Paul Eggert  <eggert@twinsun.com>
13520
13521	Version 1.875a.
13522
13523	* po/LINGUAS: Add ms.
13524
135252003-01-30  Akim Demaille  <akim@epita.fr>
13526
13527	* doc/Makefile.am (CLEANFILES): Add bison.fns for distcheck.
13528
135292003-01-29  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
13530
13531	* tests/cxx-type.at: Correct apparent typo in Bison input: $$ instead
13532	of $1.
13533
13534	Changes in response to error report by S. Eken: GLR mode does not
13535	handle negative $ indices or $ indices in embedded rules correctly.
13536	See <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00076.html>.
13537
13538	* data/glr.c (b4_rhs_value): Change to use YYFILL macro.
13539	(b4_rhs_location): Ditto.
13540	(yyfill): New function to copy from stack tree into array
13541	incrementally.
13542	(yyuserAction): Modify to allow incremental move of semantic values
13543	to rhs array when in GLR mode.
13544	Define YYFILL to use in user-defined actions to fill semantic array
13545	as needed.
13546	Remove dummy use of yystack, as there is now a guaranteed use.
13547	(yydoAction): Modify to allow incremental move of semantic values
13548	to rhs array when in GLR mode.
13549	(yyresolveAction): Ditto.
13550	(yyglrShiftDefer): Update comment.
13551	(yyresolveStates): Use X == NULL for pointers, not !X.
13552	(yyglrReduce): Ditto.
13553	(yydoAction): Ditto
13554
13555	* tests/glr-regr1.at: Rename to ...
13556	* tests/glr-regression.at: Add new regression test for the problems
13557	described above (adapted from S. Eken).
13558	Update copyright notice.
13559	* tests/testsuite.at: Rename glr-regr1.at to glr-regression.at.
13560	* tests/Makefile.am: Ditto.
13561
135622003-01-28  Paul Eggert  <eggert@twinsun.com>
13563
13564	* data/lalr1.cc: Do not use @output_header_name@ unless
13565	b4_defines_flag is set.  This fixes two bugs reported by
13566	Tim Van Holder in
13567	<http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00071.html>
13568	and <http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00073.html>.
13569
135702003-01-21  Paul Eggert  <eggert@twinsun.com>
13571
13572	* data/yacc.c (YYERROR): Move code from yyerrlab1 to here, so that
13573	we don't need to worry about yyerrlab1 being reported as an
13574	"unused label" by non-GCC C compilers.  The downside is that if
13575	locations are used then a couple of statements are duplicated each
13576	time YYERROR is invoked, but the upside is that the warnings
13577	should vanish.
13578	(yyerrlab1): Move code to YERROR.
13579	(yyerrlab2): Remove.  Change uses back to yyerrlab1.
13580	This reverts some of the 2002-12-27 change.
13581
135822003-01-17  Paul Eggert  <eggert@twinsun.com>
13583
13584	* src/output.c (symbol_printers_output): Fix typo that led
13585	to core dump.  Problem reported by Antonio Rus in
13586	<http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00058.html>.
13587
135882003-01-13  Akim Demaille  <akim@epita.fr>,
13589		Quoc Peyrot <chojin@lrde.epita.fr>,
13590		Robert Anisko <anisko_r@lrde.epita.fr>
13591
13592	* data/lalr1.cc (parse::yyerrlab1): When popping the stack, stop
13593	when the stacks contain one element, as the loop would otherwise
13594	free the last state, and then use the top state (the one we just
13595	popped).  This means that the initial elements will not be freed
13596	explicitly, as is the case in yacc.c; it is not a problem, as
13597	these elements have fake values.
13598
135992003-01-11  Paul Eggert  <eggert@twinsun.com>
13600
13601	* NEWS: %expect-violations are now just warnings, reverting
13602	to Bison 1.30 and 1.75 behavior.  This fixes the GCC 3.2
13603	bootstrapping problem reported by Matthias Klose; see
13604	<http://lists.gnu.org/archive/html/bug-bison/2003-01/msg00053.html>.
13605	* src/conflicts.c (conflicts_print): Likewise.
13606	* tests/conflicts.at (%expect not enough, %expect too much,
13607	%expect with reduce conflicts): Likewise.
13608	* doc/bison.texinfo (Expect Decl): Document this.  Also mention
13609	that the warning is enabled if the number of conflicts changes
13610	(not necessarily increases).
13611
13612	* src/getargs.c (version): Update copyright year.
13613
136142003-01-09  Akim Demaille  <akim@epita.fr>
13615
13616	* src/Makefile.am, lib/Makefile.am: Use $(VAR) instead of @VAR@.
13617
136182003-01-08  Paul Eggert  <eggert@twinsun.com>
13619
13620	* Makefile.maint (WGETFLAGS):
13621	New macro, containing "-C off" to disable proxy caches.
13622	All uses of $(WGET) changed to $(WGET) $(WGETFLAGS).
13623	(rel-check): Use $(WGET) instead of wget.
13624
136252003-01-06  Paul Eggert  <eggert@twinsun.com>
13626
13627	* doc/bison.texinfo (Generalized LR Parsing): Add a reference to
13628	the GLR paper of Scott, Johnstone and Hussain.
13629
136302003-01-04  Paul Eggert  <eggert@twinsun.com>
13631
13632	* configure.ac (AC_ARG_ENABLE): Add --disable-yacc.
13633	(YACC_SCRIPT, YACC_LIBRARY): New vars to AC_SUBST.
13634	* lib/Makefile.am (lib_LIBRARIES): liby.a -> @YACC_LIBRARY@.
13635	(EXTRA_LIBRARIES): New var, for liby.a.
13636	* src/Makefile.am (bin_SCRIPTS): yacc -> @YACC_SCRIPT@.
13637	(EXTRA_SCRIPTS): New var, for yacc.
13638
13639	* data/yacc.c (yyerrlab1): Omit attribute if __cplusplus is defined,
13640	since GNU C++ (as of 3.2.1) does not allow attributes on labels.
13641	Problem reported by Nelson H. F. Beebe.
13642
136432003-01-03  Paul Eggert  <eggert@twinsun.com>
13644
13645	* lib/obstack.h (__INT_TO_PTR) [__STDC__]: Cast result to
13646	(void *) to avoid diagnostic with native c89 on SGI IRIX 6.5
13647	when compiling Bison 1.875's `bitset bset = obstack_alloc
13648	(bobstack, bytes);'.  Problem reported by Nelson H. F. Beebe.
13649
13650	* src/scan-skel.l (QPUTS): Omit redundant `;' from macro definition.
13651	([^@\n]): Renamed from [^@\n]+ so that the token buffer does not
13652	grow to a huge size with typical invocation.
13653
13654	* lib/hash.c (_Bool, bool, false, true, __bool_true_false_are_defined):
13655	Use the pattern recommended by Autoconf 2.57, except also protect
13656	against double-definition.
13657	* src/system.h: Likewise.
13658	Portability issues reported by Nelson H. F. Beebe.
13659
13660	* data/glr.c (yybool): Renamed from bool, to avoid collisions in C.
13661	All uses changed.  Provide a definition in both C and C++.
13662	(yytrue, yyfalse): Define even if defined (__cplusplus).
13663
13664	* lib/bitset_stats.c (bitset_stats_list): Remove unused var.
13665	Reported by Nelson H. F. Beebe.
13666
13667	* src/scan-skel.l ("@oline@"): Output lineno+1, not lineno.
13668
136692003-01-02  Paul Eggert  <eggert@twinsun.com>
13670
13671	* data/yacc.c (yyerrlab1): Append `;' after attribute, to
13672	pacify the buggy "smart preprocessor" in MacOS 10.2.3.
13673	Bug reported by Nelson H. F. Beebe.
13674
136752003-01-01  Paul Eggert  <eggert@twinsun.com>
13676
13677	* Version 1.875.
13678
136792002-12-30  Paul Eggert  <eggert@twinsun.com>
13680
13681	* src/scan-gram.l (<INITIAL,SC_AFTER_IDENTIFIER,SC_PRE_CODE>","):
13682	Moved here from...
13683	(<INITIAL>","): Here.  This causes stray "," to be treated
13684	more uniformly.
13685
13686	* src/scan-gram.l (<SC_BRACED_CODE>"}"): Output ";" before the
13687	last brace in braced code when not in Yacc mode, for compatibility
13688	with Bison 1.35.  This resurrects the 2001-12-15 patch to
13689	src/reader.c.
13690
13691	* src/reader.h (YYDECL): Use YYSTYPE, not its deprecated alias
13692	yystype.  This follows up the 2002-12-24 YYSTYPE bug fix.
13693
136942002-12-28  Paul Eggert  <eggert@twinsun.com>
13695
13696	* src/symtab.c (symbol_make_alias): Set type of SYMVAL to be
13697	that of SYM's type.  This fixes Debian bug 168069, reported by
13698	Thomas Olsson.
13699
137002002-12-28  Paul Eggert  <eggert@twinsun.com>
13701
13702	Version 1.75f.
13703
13704	Switch back to the Yacc style of conflict reports, undoing some
13705	of the 2002-07-30 change.
13706	* doc/bison.texinfo (Understanding): Use Yacc style for
13707	conflict reports.  Also, use new way of locating rules.
13708	* src/conflicts.c (conflict_report):
13709	Renamed from conflict_report_yacc, removing the old
13710	'conflict_report'.  Translate the entire conflict report at once,
13711	so that we don't assume that "," has the same interpretation in
13712	all languages.
13713	(conflicts_output): Use Yacc-style conflict report for each state,
13714	instead of our more-complicated style.
13715	(conflicts_print): Use Yacc-style conflict report, except print
13716	the input file name when not emulating Yacc.
13717	* tests/conflicts.at (Unresolved SR Conflicts, Defaulted
13718	Conflicted Reduction, %expect not enough, %expect too much,
13719	%expect with reduce conflicts): Switch to Yacc-style conflict reports.
13720	* tests/existing.at (GNU Cim Grammar): Likewise.
13721	* tests/glr-regr1.at (Badly Collapsed GLR States): Likewise.
13722
13723	* src/complain.c (warn_at, warn, complain_at, complain, fatal_at,
13724	fatal): Don't invoke fflush; it's not needed and it might even be
13725	harmful for stdout, as stdout might not be open.
13726	* src/reduce.c (reduce_print): Likewise.
13727
137282002-12-27  Paul Eggert  <eggert@twinsun.com>
13729
13730	Fix a bug where error locations were not being recorded correctly.
13731	This problem was originally reported by Paul Hilfinger in
13732	<http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00086.html>.
13733
13734	* data/yacc.c (yyparse): New local var yylerrsp, to record the
13735	top of the location stack's error locations.
13736	(yyerrlab): Set it.  When discarding a token, push its location
13737	onto yylerrsp so that we don't lose track of the error's end.
13738	(yyerrlab1): Now is only the target of YYERROR, so that we can
13739	properly record the location of the action that failed.  For GCC
13740	2.93 and later, insert an __attribute__ ((__unused__)) to avoid
13741	GCC warning about yyerrlab1 being unused if YYERROR is unused.
13742	(yyerrlab2): New label, which yyerrlab now falls through to.
13743	Compute the error's location by applying YYLLOC_DEFAULT to
13744	the locations of all the symbols that went into the error.
13745	* doc/bison.texinfo (Location Default Action): Mention that
13746	YYLLOC_DEFAULT is also invoked for syntax errors.
13747	* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR):
13748	Error locations include the locations of all the tokens that were
13749	discarded, not just the last token.
13750
137512002-12-26  Paul Eggert  <eggert@twinsun.com>
13752
13753	* src/files.c: Include quote.h.
13754	(compute_output_file_names): Warn if we detect conflicting
13755	outputs to the same file.  This should catch the misunderstanding
13756	exemplified by Debian Bug 165349, reported by Bruce Stephens..
13757
13758	* src/conflicts.c (conflicts_print): If the user specifies
13759	"%expect N", report an error if there are any reduce/reduce
13760	conflicts.  This is what the manual says should happen.
13761	This fixes Debian bug 130890, reported by Anthony DeRobertis.
13762	* tests/conflicts.at (%expect with reduce conflicts): New test.
13763
13764	Don't use m4_include on relative file names, as it doesn't work as
13765	desired if there happens to be a file with that name under ".".
13766
13767	* m4sugar/version.m4: Remove; it was included but it wasn't used.
13768	* data/Makefile.am (dist_m4sugar_DATA): Remove m4sugar/version.m4.
13769	* data/m4sugar/m4sugar.m4: Don't include m4sugar/version.m4.
13770	* data/glr.c, data/lalr1.cc, data/yacc.c: Don't include c.m4.
13771	* src/output.c (output_skeleton): Use full path names when
13772	specifying a file to include; don't rely on include path, as
13773	it's unreliable when the working file contains a file with
13774	that name.
13775
137762002-12-25  Paul Eggert  <eggert@twinsun.com>
13777
13778	Remove obsolete references to bison.simple and bison.hairy.
13779	Problem mentioned by Aubin Mahe in
13780	<http://lists.gnu.org/archive/html/help-bison/2002-12/msg00010.html>.
13781	* data/glr.c: Comment fix.
13782	* doc/bison.1: Remove references.  Also, mention "yacc".
13783
13784	* src/getargs.c (getargs) [MSDOS]: Don't assume optarg != NULL
13785	with -g option.
13786
13787	* src/parse-gram.y (declaration): Use enum "report_states" rather
13788	than its numeric value 1.
13789
13790	* src/scan-skel.l ("@output ".*\n): Close any old yyout before
13791	opening a new one.  This fixes Debian bug 165349, reported by
13792	Bruce Stephens.
13793
137942002-12-24  Paul Eggert  <eggert@twinsun.com>
13795
13796	Version 1.75e.
13797
13798	* Makefile.maint (cvs-update): Don't assume that the shell
13799	supports $(...), as Solaris sh doesn't.
13800
13801	* src/parse-gram.y (lloc_default): Remove test for empty
13802	nonterminals at the end, since it didn't change the result.
13803
138042002-12-24  Paul Eggert  <eggert@twinsun.com>
13805
13806	If the user does not define YYSTYPE as a macro, Bison now declares it
13807	using typedef instead of defining it as a macro.  POSIX requires this.
13808	For consistency, YYLTYPE is also declared instead of defined.
13809
13810	%union directives can now have a tag before the `{', e.g., the
13811	directive `%union foo {...}' now generates the C code
13812	`typedef union foo { ... } YYSTYPE;'; this is for Yacc compatibility.
13813	The default union tag is `YYSTYPE', for compatibility with Solaris 9
13814	Yacc.  For consistency, YYLTYPE's struct tag is now `YYLTYPE'
13815	instead of `yyltype'.
13816
13817	`yystype' and `yyltype' are now obsolescent macros instead of being
13818	typedefs or tags; they are no longer documented and will be
13819	withdrawn in a future release.
13820
13821	* data/glr.c (b4_location_type): Remove.
13822	(YYSTYPE): Renamed from yystype.
13823	(YYSTYPE_IS_DECLARED): New macro, used to prevent double-typedef.
13824	(struct YYLTYPE): Renamed from struct yyltype.
13825	(YYLTYPE): Renamed from yyltype.
13826	(yyltype, yystype): New (and obsolescent) macros,
13827	for backward compatibility.
13828	* data/yacc.c: Likewise.
13829
13830	* data/yacc.c (YYSTYPE): Declare as union YYSTYPE if the user
13831	does not specify a union tag.  This is for compatibility with
13832	Solaris 9 yacc.
13833
13834	* src/parse-gram.y (add_param): 2nd arg is now char * not char
13835	const *, since it is now modified by stripping surrounding { }.
13836	(current_braced_code): Remove.
13837	(PERCENT_DESTRUCTOR, PERCENT_PRINTER, PERCENT_UNION,
13838	PERCENT_LEX_PARAM, PERCENT_PARSE_PARAM): Change names to include
13839	trailing " {...}".  Now of type <chars>.
13840	(grammar_declaration): Adjust to bundled tokens.
13841	(code_content): Remove; stripping is now done by add_param.
13842	(print_token_value): Print contents of bundled tokens.
13843	(token_name): New function.
13844
13845	* src/reader.h (braced_code, current_braced_code): Remove.
13846	(token_name): New decl.
13847
13848	* src/scan-gram.l (handle_dollar, handle_at): Now takes int
13849	token_type, not braced_code code_kind.  All uses changed.
13850	(SC_PRE_CODE): New state, for scanning after a keyword that
13851	has (or usually has) an immediately-following braced code.
13852	(token_type): New local var, to keep track of which token type
13853	to return when scanning braced code.
13854	(<INITIAL>"%destructor", <INITIAL>"%lex-param",
13855	<INITIAL>"%parse-param", <INITIAL>"%printer",
13856	<INITIAL>"%union"): Set token type and BEGIN SC_PRE_CODE
13857	instead of returning a token type immediately.
13858	(<INITIAL>"{"): Set token type.
13859	(<SC_BRACED_CODE>"}"): Use it.
13860	(handle_action_dollar, handle_action_at): Now returns bool
13861	indicating success.  Fail if ! current_rule; this prevents a core dump.
13862	(handle_symbol_code_dollar, handle_symbol_code_at):
13863	Remove; merge body into caller.
13864	(handle_dollar, handle_at): Complain in invalid contexts.
13865
13866	* NEWS, doc/bison.texinfo: Document the above.
13867	* NEWS: Fix years and program names in copyright notice.
13868
138692002-12-17  Paul Eggert  <eggert@twinsun.com>
13870
13871	* NEWS, doc/bison.texinfo (Parser Function, Pure Calling, Error
13872	Reporting, Table of Symbols): Omit mentions of %lex-param and
13873	%parse-param from the documentation for now.
13874
138752002-12-15  Paul Eggert  <eggert@twinsun.com>
13876
13877	Undo most of the 2002-11-12 yychar -> yytoken patch, as it broke
13878	GCC 3.2.1 (which depends on yychar == YYEMPTY when there is no
13879	lookahead symbol, and which sets yychar in parser actions) and it
13880	disagreed with the Bison documentation.  Bug
13881	reported by Andrew Walrond.
13882
13883	* data/yacc.c (YYTRANSLATE): Don't check for negative argument,
13884	as the caller now does that.
13885	(yyclearin, YYBACKUP, yyparse): Use yychar, not yytoken.
13886	(YYEMPTY): Parenthesize right hand side, since others use it.
13887	(yyparse): Don't assume that our generated code is the only code
13888	that sets yychar.
13889
138902002-12-13  Paul Eggert  <eggert@twinsun.com>
13891
13892	Version 1.75d.
13893
13894	POSIX requires a "yacc" command.
13895	* src/Makefile.am (bin_SCRIPTS): New macro, for yacc.
13896	(MOSTLYCLEANFILES): Add yacc.
13897	(yacc): New rule.
13898	* doc/bison.texinfo (Invocation, Bison Options): Mention yacc
13899	as an alias for bison y.
13900
13901	* po/LINGUAS: Add da.
13902
13903	* src/getargs.c (__GNU_LIBRARY__) [lint]: Define to work around
13904	problem with latest <getopt.h>.
13905	(HACK_FOR___GNU_LIBRARY___PROTOTYPE): New macro.
13906
13907	* doc/fdl.texi: Upgrade to 1.2.
13908	* lib/alloca.c, lib/error.c, lib/getopt.c, lib/getopt.h
13909	lib/getopt1.c, lib/gettext.h, lib/memrchr.c, lib/obstack.c,
13910	lib/obstack.h, lib/strnlen.c, lib/unlocked-io.h: Sync with
13911	gnulib.
13912	* config/install-sh: Sync with autotools.
13913
13914	Fix a bad interaction with flex 2.5.23 reported by Bruce Lilly in
13915	<http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00114.html>.
13916	* data/yacc.c (YYLTYPE, struct yyltype): Do not define unless
13917	locations are requested.
13918	(union yyalloc): Do not depend on YYLTYPE_IS_TRIVIAL unless
13919	locations are requested.
13920
139212002-12-12  Paul Eggert  <eggert@twinsun.com>
13922
13923	Remove unportable casts and storage allocation tricks.
13924	While we're at it, remove almost all casts, since they
13925	usually aren't needed and are a sign of trouble.
13926
13927	* configure.ac (AC_CHECK_TYPES): Check for uintptr_t.
13928
13929	* src/derives.c (derives_compute): Do not subtract NTOKENS from
13930	the pointer DSET returned by malloc; this isn't portable.
13931	Instead, always use DSET[i - NTOKENS] rather than DSET[i].
13932	Similarly for DERIVES.
13933	* src/lalr.c (set_goto_map): Likewise, for GOTO_MAP and TEMP_MAP.
13934	* src/nullable.c (nullable_compute): Likewise, for RSETS and NULLABLE.
13935	* src/reduce.c (reduce_grammar_tables): Likewise, for nontermmap
13936
13937	* src/derives.c (derives_compute): Do not bother invoking
13938	int_of_rule_number, since rule numbers are integers.
13939
13940	* src/files.c (concat2, tr, compute_base_name): Use xmalloc (N)
13941	rather than XMALLOC (char, N).
13942
13943	* src/files.c (filename_split): Rewrite to avoid cast.
13944
13945	* src/gram.h (symbol_number_as_item_number,
13946	item_number_as_symbol_number, rule_number_as_item_number,
13947	item_number_as_rule_number):
13948	Now inline functions rather than macros, to avoid casts.
13949	* src/state.h (state_number_as_int): Likewise.
13950	* src/tables.c (state_number_to_vector_number,
13951	symbol_number_to_vector_number): Likewise.
13952
13953	* src/gram.h (int_of_rule_number): Remove; no longer used.
13954
13955	* src/lalr.c (add_lookback_edge): Use malloc rather than calloc,
13956	since the resulting storage is always stored into.
13957
13958	* src/main.c (alloca) [C_ALLOCA]: Add decl here, the only place
13959	where it's needed.
13960
13961	* src/muscle_tab.c (muscle_m4_output):
13962	Now inline.  Return bool, not int.
13963	* src/state.c (state_compare): Likewise.
13964	* src/symtab.c (symbol_check_defined,
13965	symbol_check_alias_consistency, symbol_pack, symbol_translation,
13966	hash_compare_symbol, hash_symbol):
13967	Likewise.
13968	* src/uniqstr.c (uniqstr_print): Likewise.
13969	* src/muscle_tab.c (muscle_m4_output_processor):
13970	New function, to avoid casts.
13971	* src/state.c (state_comparator, stage_hasher): Likewise.
13972	* src/symtab.c (symbol_check_defined_processor,
13973	symbol_check_alias_consistency_processor, symbol_pack_processor,
13974	symbol_translation_processor, hash_symbol_comparator,
13975	hash_symbol_hasher): Likewise.
13976	* src/uniqstr.c (uniqstr_print_processor): Likewise.
13977	* src/muscle_tab.c (muscles_m4_output):
13978	Use new functions instead of casting old functions unportably.
13979	* src/state.c (state_hash_new): Likewise.
13980	* src/symtab.c (symbols_new, symbols_do, symbols_check_defined,
13981	symbols_token_translations_init):
13982	Likewise.
13983	* src/uniqstr.c (uniqstrs_new, hash_initialize, uniqstrs_do): Likewise.
13984
13985	* src/output.c (GENERATE_MUSCLE_INSERT_TABLE): Use long local
13986	var instead of casting to long, to avoid casts.
13987	(prepare_states): Use MALLOC rather than alloca, so that we don't
13988	have to worry about alloca.
13989	* src/state.c (state_hash_lookup): Likewise.
13990
13991	* src/scan-gram.l (<SC_ESCAPED_CHARACTER>"'"): Use unsigned char
13992	local var instead of casting to unsigned char, to avoid casts.
13993
13994	* src/state.c (TRANSITIONS_ALLOC, ERRS_ALLOC, REDUCTIONS_ALLOC,
13995	STATE_ALLOC): Remove.
13996	(transitions_new, errs_new, reductions_new, state_new): Use malloc
13997	rather than calloc, and use offsetof to avoid allocating slightly
13998	too much storage.
13999	(state_new): Initialize all members.
14000
14001	* src/state.c (state_hash): Use unsigned accumulator, not signed.
14002
14003	* src/symtab.c (symbol_free): Remove; unused.
14004	(symbol_get): Remove cast in lhs of assignment.
14005	(symbols_do): Now static.  Accept generic arguments, not
14006	hashing-related ones.
14007
14008	* src/symtab.h: (NUMBER_UNDEFINED): Remove unnecessary cast.
14009	(symbol_processor): Remove.
14010	(symbols_do): Remove decl; now static.
14011
14012	* src/system.h (alloca): Remove; decl no longer needed.
14013	(<stddef.h>): Include, for offsetof.
14014	(<inttypes.>, <stdint.h>): Include if available.
14015	(uintptr_t): New type, if system lacks it.
14016	(CALLOC, MALLOC, REALLOC): New macros.
14017	All uses of XCALLOC, XMALLOC, and XREALLOC changed to use these
14018	new macros.
14019
14020	* src/tables.c (table_size): Now int, to pacify GCC.
14021	(table_grow, table_ninf_remap): Use signed table size.
14022	(save_row): Don't bother initializing locals when not needed.
14023	(default_goto, goto_actions, pack_vector): Remove unnecessary casts.
14024	* src/uniqstr.c (hash_compare_uniqstr):  Likewise.
14025
14026	* src/vcg.h: Correct misspellings.
14027
14028	* src/vcg_defaults.h (G_CMAX): Now INT_MAX.
14029
14030
14031	* src/getargs.c (getargs): Don't assume EOF == -1.
14032
140332002-12-09  Paul Eggert  <eggert@twinsun.com>
14034
14035	Change identifier spellings to avoid collisions with names
14036	that are reserved by POSIX.
14037
14038	Don't use names ending in _t, since POSIX reserves them.
14039	For consistency, remove _e and _s endings -- they're weren't
14040	needed to remove ambiguity.  All uses changed.
14041	* src/uniqstr.h (uniqstr): Renamed from uniqstr_t, which in
14042	turn was just renamed from struniq_t.
14043	* src/uniqstr.c (uniqstr_processor): Renamed from struniq_processor,
14044	which in turn was just renamed from struniq_processor_t.
14045	(hash_compare_uniqstr): Renamed from hash_compare_struniq, which
14046	in turn was renamed from hash_compare_struniq_t.
14047	* src/LR0.c (struct state_list): Renamed from struct state_list_s.
14048	(state_list): Renamed from state_list_t.
14049	* src/assoc.h (assoc): Renamed from assoc_t.
14050	* src/conflicts.c (enum conflict_resolution): Renamed from
14051	enum conflict_resolution_e.
14052	* src/derives.c (struct rule_list): Renamed from struct rule_list_s.
14053	(rule_list): Renamed from rule_list_t.
14054	* src/getargs.h (enum trace): Renamed from enum trace_e.
14055	(enum report): Renamed from enum report_e.
14056	* src/gram.h (item_number): Renamed from item_number_t.
14057	(rule_number): Renamed from rule_number_t.
14058	(struct rule_s): Remove the "rule_s" part; not used.
14059	(rule): Renamed from rule_t.
14060	(rule_filter): Renamed from rule_filter_t.
14061	* src/lalr.c (struct goto_list): Renamed from struct goto_list_s.
14062	(goto_list): Renamed from goto_list_t.
14063	* src/lalr.h (goto_number): Renamed from goto_number_t.
14064	* src/location.h (location): Renamed from location_t.
14065	* src/muscle_tab.c (muscle_entry): Renamed from muscle_entry_t,
14066	and moved here from:
14067	* src/muscle_tab.h (muscle_entry_t): here.
14068	* src/nullable.c (struct rule_list): Renamed from struct rule_list_s.
14069	(rule_list): Renamed from rule_list_t.
14070	* src/print_graph.c (static_graph): Renamed from graph.
14071	* src/reader.h (braced_code): Renamed from braced_code_t.
14072	Remove brace_code_e tag.
14073	* src/relation.h (relation_node): Renamed from relation_node_t.
14074	(relation_nodes): Renamed from relation_nodes_t.
14075	(relation): Renamed from relation_t.
14076	* src/state.h (state_number): Renamed from state_number_t.
14077	(struct state): Renamed from struct state_s.
14078	(state): Renamed from state_t.
14079	(transitions): Renamed from transitions_t.  Unused (and
14080	misspelled) transtion_s tag removed.
14081	(errs): Renamed from errs_t.  Unused errs_s tag removed.
14082	(reductions): Renamed from reductions_t.  Unused tag
14083	reductions_s removed.
14084	* src/symlist.h (symbol_list): Renamed from symbol_list_t.
14085	(struct symbol_list): Renamed from struct symbol_list_s.
14086	* src/symtab.h (symbol_number): Renamed from symbol_number_t.
14087	(struct symbol): Renamed from struct symbol_s.
14088	(symbol): Renamed from symbol_t.
14089	* src/tables.c (vector_number): Renamed from vector_number_t.
14090	(action_number): Renamed from action_t.
14091	* src/tables.h (base_number): Renamed from base_t.
14092	* src/vcg.h (enum color): Renamed from enum color_e.
14093	(enum textmode): Renamed from enum textmode_e.
14094	(enum shape): Renamed from enum shape_e.
14095	(struct colorentry): Renamed from struct colorentry_s.
14096	(struct classname): Renamed from struct classname_s.
14097	(struct infoname): Renamed from struct infoname_s.
14098	(enum layoutalgorithm): Renamed from enum layoutalgorithm_e.
14099	(enum decision): Renamed from enum decision_e.
14100	(enum orientation): Renamed from enum orientation_e.
14101	(enum alignment): Renamed from enum alignment_e.
14102	(enum arrow_mode): Renamed from enum arrow_mode_e.
14103	(enum crossing_type): Renamed from enum crossing_type_e.
14104	(enum view): Renamed from enum view_e.
14105	(struct node): Renamed from struct node_s.
14106	(node): Renamed from node_t.
14107	(enum linestyle): Renamed from enum linestyle_e.
14108	(enum arrowstyle): Renamed from enum arrowstyle_e.
14109	(struct edge): Renamed from struct edge.
14110	(edge): Renamed from edge_t.
14111	(struct graph): Renamed from struct graph_s.
14112	(graph): Renamed from graph_t.
14113	* tests/calc.at (_AT_DATA_CALC_Y, Simple LALR Calculator):
14114	Rename value_t -> value.
14115	* tests/input.at (Torturing the Scanner): Rename value_t -> value,
14116	value_t_as_yystype -> value_as_yystype.
14117
14118	Don't include <errno.h> in the mainstream code, since it
14119	reserves E[A-Z0-9]* and we want to use symbols like 'EQUALS'.
14120	* lib/get-errno.c, lib/get-errno.h: New files.
14121	* lib/Makefile.am (libbison_a_SOURCES): Add get-errno.h,
14122	get-errno.c.
14123	* src/files.c (xfopen, xfclose): Use get_errno instead of errno.
14124	* src/output.c (output_skeleton): Likewise.
14125	* src/scan-gram.l (<INITIAL>{int}): Use set_errno and get_errno
14126	instead of errno.
14127	(<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>\\x[0-9abcdefABCDEF]+):
14128	Likewise.
14129	(handle_action_dollar, handle_action_at): Likewise.
14130	* src/system.h: Do not include <errno.h>.
14131	(TAB_EXT): Renamed from EXT_TAB.
14132	(OUTPUT_EXT): Renamed from EXT_OUTPUT.
14133
14134	Avoid str[a-z]*, since <string.h> reserves that name space.
14135	Change all instances of "struniq" in names to "uniqstr", and
14136	likewise for "STRUNIQ" and "UNIQSTR".
14137	* src/uniqstr.c: Renamed from src/struniq.c.
14138	* src/uniqstr.h: Renamed from src/struniq.h.
14139	* src/Makefile.am (bison_SOURCES): Adjust to these renamings.
14140	* src/files.c (strsuffix): Remove; unused.
14141	(concat2): Renamed from stringappend.  Now static.
14142	* src/files.h (strsuffix, stringappend): Remove; unused.
14143	* src/parse-gram.y (<chars>): Renamed from <string>.
14144	(<uniqstr>): Renamed from <struniq>.
14145	* src/scan-gram.l (obstack_for_string): Renamed from string_obstack.
14146	* src/vcg.h (struct node_s.expand): Renamed from struct node_s.stretch.
14147	(struct graph_s.expand): Renamed from struct graph_s.stretch.
14148	* src/vcg_defaults.h (G_EXPAND): Renamed from G_STRETCH.
14149	(G_LONG_STRAIGHT_PHASE): Renamed from G_STRAIGHT_PHASE.
14150	(N_EXPAND): Renamed from N_STRETCH.
14151
14152	Avoid *_MAX and *_MIN, since <limits.h> reserves that name space.
14153	* data/yacc.c (YYSTACK_GAP_MAXIMUM): Renamed from YYSTACK_GAP_MAX.
14154	* src/gram.h (ITEM_NUMBER_MAX, ITEM_NUMBER_MIN, RULE_NUMBER_MAX):
14155	Remove; unused.
14156	* src/lalr.h (GOTO_NUMBER_MAXIMUM): Renamed from GOTO_NUMBER_MAX.
14157	* src/state.h (STATE_NUMBER_MAXIMUM): Renamed from STATE_NUMBER_MAX.
14158	* src/symtab.h (SYMBOL_NUMBER_MAXIMUM): Renamed from SYMBOL_NUMBER_MAX.
14159	* src/tables.c (VECTOR_NUMBER_MAX, VECTOR_NUMBER_MIN): Remove; unused.
14160	(BASE_MAXIMUM): Renamed from BASE_MAX.
14161	(BASE_MINIMUM): Renamed from BASE_MIN.
14162	(ACTION_MAX): Remove; unused.
14163	(ACTION_NUMBER_MINIMUM): Renamed from ACTION_MIN.
14164	Unnecessary casts removed from above defines.
14165
14166
14167	Fix misspelling in names.
14168	* src/vcg.h (enum_alignment_e): Renamed from enum_alignement_e.
14169	* src/vcg_defaults.h (G_NODE_ALIGNMENT): Renamed from
14170	G_NODE_ALIGNEMENT.
14171
14172
14173	* lib/timevar.c (timevar_report): Renamed from time_report,
14174	for consistency with other names.
14175	* lib/timevar.h (timevar_report): New decl.
14176	* src/system.h (time_report): Remove; decl is now in lib/timevar.h.
14177
14178
14179	Sort include-file uses.
14180
14181	Reorder all include files under src to be in the order "system.h".
14182	then the ../lib include files in angle brackets (alphabetized),
14183	then the . include files in double-quotes (alphabetized).  Fix
14184	dependency breakages encountered in this process, as follows:
14185	* src/closure.h, src/derives.h, src/state.h: Include "gram.h".
14186	* src/complain.c: Don't include stdlib.h, string.h _LIBC stuff.
14187	* src/state.h: Include "symtab.h".
14188
141892002-12-08  Paul Eggert  <eggert@twinsun.com>
14190
14191	* data/glr.c, data/lalr1.cc, data/yacc.c: Do not use __file__,
14192	since this causes problems when __file__ contains character
14193	sequences like "@" that are treated specially by src/scan-skel.l.
14194	Instead, just use the file's basename.  This fixes the bug
14195	reported by Martin Mokrejs in
14196	<http://lists.gnu.org/archive/html/bug-bison/2002-12/msg00007.html>.
14197
141982002-12-06  Paul Eggert  <eggert@twinsun.com>
14199
14200	Add support for rules that do not have trailing semicolons, as
14201	POSIX requires.  Improve the quality of locations in Bison
14202	diagnostics.
14203
14204	* src/location.c: Include <quotearg.h>.
14205	(empty_location): Now const.
14206	(location_print): New function.  Follow the recommendation of the
14207	GNU Coding Standards for locations that span file boundaries.
14208	* src/location.h: Do not include <quotearg.h>; no longer needed.
14209	(boundary): New type.
14210	(location_t): Use it.  This allows locations to span file boundaries.
14211	All member uses changed: file -> start.file or end.file (as needed),
14212	first_line -> start.line, first_column -> start.column,
14213	last_line -> end.line, last_column -> end.column.
14214	(equal_boundaries): New function.
14215	(LOCATION_RESET, LOCATION_STEP): Remove.
14216	(LOCATION_PRINT): Remove.  All callers changed to use location_print.
14217	(empty_location): Now const.
14218	(location_print): New decl.
14219	* src/parse-gram.y (lloc_default): New function, which handles
14220	empty locations more accurately.
14221	(YYLLOC_DEFAULT): Use it.
14222	(%token COLON): Remove.
14223	(%token ID_COLON): New token.
14224	(rules): Use it.
14225	(declarations, rules): Remove trailing semicolon.
14226	(declaration, rules_or_grammar_declaration):
14227	Allow empty (";") declaration.
14228	(symbol_def): Remove empty actions; no longer needed.
14229	(rules_or_grammar_declaration): Remove trailing semicolon.
14230	(semi_colon.opt): Remove.
14231	* src/reader.h: Include location.h.
14232	(scanner_cursor): New decl.
14233	* src/reduce.c (nonterminals_reduce): Use warn_at rather than
14234	rolling our own.
14235	* src/scan-gram.l (YY_USER_INIT): Initialize scanner_cursor instead
14236	of *loc.
14237	(STEP): Remove.  No longer needed, now that adjust_location does
14238	the work.  All uses removed.
14239	(scanner_cursor): New var.
14240	(adjust_location): Renamed from extend_location.  It now sets
14241	*loc and adjusts the scanner cursor.  All uses changed.
14242	Don't bother testing for CR.
14243	(handle_syncline): Remove location arg; now updates scanner cursor.
14244	All callers changed.
14245	(unexpected_end_of_file): Now accepts start boundary of token or
14246	comment, not location.  All callers changed.  Update scanner cursor,
14247	not the location.
14248	(SC_AFTER_IDENTIFIER): New state.
14249	(context_state): Renamed from c_context.  All uses changed.
14250	(id_loc, code_start, token_start): New local vars.
14251	(<INITIAL,SC_AFTER_IDENTIFIER>): New initial context.  Move all
14252	processing of Yacc white space and equivalents here.
14253	(<INITIAL>{id}): Save id_loc.  Begin state SC_AFTER_IDENTIFIER
14254	instead of returning ID immediately, since we need to search for
14255	a subsequent colon.
14256	(<INITIAL>"'", "\""): Save token_start.
14257	(<INITIAL>"%{", "{", "%%"): Save code_start.
14258	(<SC_AFTER_IDENTIFIER>): New state, looking for a colon.
14259	(<SC_YACC_COMMENT>, <SC_COMMENT>, <SC_LINE_COMMENT>):
14260	BEGIN context_state at end, not INITIAL.
14261	(<SC_ESCAPED_STRING>"\"", <SC_ESCAPED_CHARACTER>"'",
14262	<SC_BRACED_CODE>"}", <SC_PROLOGUE>"%}", <SC_EPILOGUE><<EOF>>):
14263	Return correct token start.
14264	(<SC_BRACED_CODE,SC_PROLOGUE,SC_EPILOGUE>): Save start boundary when
14265	the start of a character, string or multiline comment is found.
14266	* tests/conflicts.at (S/R in initial, Defaulted Conflicted
14267	Reduction): Adjust reported locations to match the more-precise
14268	results now expected.
14269	* tests/input.at (Invalid $n, Invalid @n, Type Clashes): Likewise.
14270	* tests/reduce.at (Useless Rules, Reduced Automaton,
14271	Underivable Rules): Likewise.
14272	* tests/regression.at (Invalid inputs): No longer `expecting ";"
14273	or "|"' now that so many other tokens are allowed by the new grammar.
14274
14275	* src/complain.h (current_file): Remove duplicate decl;
14276	current_file is now owned by files.h.
14277	* src/complain.c, src/scan-gram.l: Include files.h.
14278
142792002-12-06  Paul Eggert  <eggert@twinsun.com>
14280
14281	* data/glr.c (yy_reduce_print): Don't assume that yyrline[yyrule]
14282	promotes to int; it might be unsigned int.
14283	* data/yacc.c (yy_reduce_print): Likewise.
14284
14285	* doc/bison.texinfo (Table of Symbols): YYERROR_VERBOSE should
14286	be #defined in the prologue, not in the Bison declarations.
14287	This fixes Debian Bug 102878, reported by Shaul Karl.
14288
142892002-12-02  Paul Eggert  <eggert@twinsun.com>
14290
14291	* configure.ac (AC_REPLACE_FUNCS): Add strtoul.
14292	* lib/strtoul.c: New file, from gnulib.
14293	This fixes a porting bug reported by Peter Klein in
14294	<http://lists.gnu.org/archive/html/bug-bison/2002-12/msg00000.html>.
14295
142962002-11-30  Paul Eggert  <eggert@twinsun.com>
14297
14298	* src/scan-gram.l (no_cr_read, extend_location): Move to epilogue,
14299	and put only a forward declaration in the prologue.  This is for
14300	consistency with the other scanner helper functions.
14301
14302	Type clashes now generate warnings, not errors, since it
14303	appears that POSIX may allow some grammars with type clashes.
14304	* src/reader.c (grammar_current_rule_check): Warn about
14305	type clashes instead of complaining.
14306	* tests/input.at (Type Clashes): Expect warnings, not complaints.
14307
14308	Add Yacc library, since POSIX requires it.
14309	* doc/bison.texinfo (Yacc Library): New node.  Regenerate top menu.
14310	* lib/Makefile.am (lib_LIBRARIES, liby_a_SOURCES): New macros.
14311	* lib/main.c, lib/yyerror.c: New files.
14312
14313	gram_error can be static; it need not be extern.
14314	* src/reader.h (gram_error): Remove decl.
14315	* src/parse-gram.y (gram_error): Now static.  Add static decl.
14316	(print_token_value): Omit parameter names from forward decl,
14317	for consistency.
14318
143192002-11-29  Paul Eggert  <eggert@twinsun.com>
14320
14321	* doc/bison.texinfo: Emphasize that yylex and yyerror must
14322	be declared before being used.  E.g., one should typically
14323	declare them in the prologue.  Use GNU coding style in examples.
14324	Put "const" consistently after the type it modifies.  Mention
14325	that C99 supports "inline".  Mention that yyerror traditionally
14326	returns "int".
14327
14328	%parse-param and %lex-param now take just one argument, the
14329	declaration; the argument name is deduced from the declaration.
14330
14331	* doc/bison.texinfo (Parser Function, Pure Calling, Error
14332	Reporting, Table of Symbols): Document this.
14333	* src/parse-gram.y (add_param): New function.
14334	(COMMA): Remove.
14335	(declaration): Implement new rule for %parse-param and %lex-param.
14336	* src/scan-gram.l: "," now elicits a warning, rather than being
14337	a token; this is more compatible with byacc.
14338	* tests/calc.at (Simple LALR Calculator): Adopt new convention.
14339
143402002-11-27  Paul Eggert  <eggert@twinsun.com>
14341
14342	Rename identifiers to avoid real and potential collisions.
14343
14344	* data/c.m4 (b4_yysymprint_generate): yyout -> yyoutput,
14345	to avoid collision with lex macro described by Bruce Lilly in
14346	<http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00114.html>.
14347	* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise.
14348	* doc/bison.texinfo (Prologue, Tracing): yyprint -> print_token_value.
14349	* src/parse-gram.y (print_token_value): Renamed from yyprint.
14350	All uses changed.
14351	(YYPARSE_PARAM, YYLEX_PARAM, yycontrol): Remove.  All uses changed.
14352	The name "yycontrol" violates the name space rules, and this stuff
14353	wasn't being used anyway.
14354	(input): Remove action; this stuff wasn't being used.
14355	(gram_error): Rename local variable yylloc -> loc.
14356	* src/reader.h (struct gram_control_s, gram_control_t): Remove.
14357	(YY_DECL): Don't use "yy" at start of local variables.
14358	All uses changed, e.g., yylloc -> loc.
14359	* src/scan-gram.l (STEP): Renamed from YY_STEP.  All uses changed.
14360	(STRING_GROW): Renamed from YY_OBS_GROW.  All uses changed.
14361	(STRING_FINISH): Renamed from YY_OBS_FINISH.  All uses changed.
14362	(STRING_FREE): Renamed from YY_OBS_FREE.  All uses changed.
14363
14364	* src/parse-gram.y (gram_error): loc is now const *.
14365	* src/reader.h (gram_error): Likewise.
14366
143672002-11-24  Paul Eggert  <eggert@twinsun.com>
14368
14369	Version 1.75c.
14370
14371	* tests/actions.at (Actions after errors): Use an output format
14372	more similar to that of the Printers and Destructors test.
14373	Test the position of the ';' token too.
14374	(Printers and Destructors): Likewise.
14375	(Printers and Destructors: %glr-parser): Remove for now, to avoid
14376	unnecessarily alarming people when the test fails.
14377
14378	* data/yacc.c (yyerrlab1): Move this label down, so that the
14379	parser does not discard the lookahead token if the user code
14380	invokes YYERROR.  This change is required for POSIX conformance.
14381
14382	* lib/error.c: Sync with gnulib.
14383
143842002-11-22  Paul Eggert  <eggert@twinsun.com>
14385
14386	* lib/quotearg.c, lib/quotearg.h: Sync with gnulib.
14387	* lib/mbswidth.c, lib/mbswidth.h: Likewise.
14388	* lib/xmalloc.c: Likewise.
14389
143902002-11-20  Paul Eggert  <eggert@twinsun.com>
14391
14392	* lib/argmatch.c, lib/argmatch.h: Sync with gnulib.
14393
143942002-11-20  Paul Eggert  <eggert@twinsun.com>
14395
14396	Avoid use of <assert.h>, as the GNU Coding Standards hint that one
14397	should use `if (! x) abort ();' rather than `assert (x);', and
14398	anyway it's one less thing to worry about configuring.
14399
14400	* data/glr.c, lib/hash.c, src/system.h: Do not include <assert.h>.
14401	* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Likewise,
14402	and replace all instances of assert with abort.
14403	* tests/calc.at (_AT_DATA_CALC_Y): Likewise.
14404	* tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): Likewise.
14405
14406	* data/glr.c (yydoAction, yyglrReduce, yysplitStack, yyresolveStates,
14407	yyresolveAction, yyprocessOneStack): Use abort rather than assert.
14408	* lib/hash.c (hash_lookup, hash_get_first, hash_get_next,
14409	hash_find_entry, hash_rehash, hash_insert): Likewise.
14410	* src/conflicts.c (resolve_sr_conflict): Likewise.
14411	* src/lalr.c (set_goto_map, map_goto): Likewise.
14412	* src/nullable.c (nullable_compute): Likewise.
14413	* src/output.c (prepare_rules, token_definitions_output): Likewise.
14414	* src/reader.c (packgram, reader): Likewise.
14415	* src/state.c (state_new, state_free, state_transitions_set,
14416	state_reduction_find): Likewise.
14417	* src/symtab.c (symbol_user_token_number_set, symbol_make_alias,
14418	symbol_pack): Likewise.
14419	* src/tables.c (conflict_row, pack_vector): Likewise.
14420	* src/vcg.c (get_color_str, get_textmode_str, get_shape_str,
14421	get_layoutalgorithm_str, get_decision_str, get_orientation_str,
14422	get_node_alignement_str, get_arrow_mode_str, get_crossing_type_str,
14423	get_view_str, get_linestyle_str, get_arrowstyle_str): Likewise.
14424
14425	* lib/argmatch.h (ARRAY_CARDINALITY): Do not bother to #undef.
14426	(ARGMATCH_CONSTRAINT): New macro.
14427	(ARGMATCH_ASSERT): Use it.
14428
14429	* src/system.h (verify): New macro.
14430	* src/getargs.c (trace_argmatch, report_argmatch): Use verify
14431	rather than assert.
14432	* src/tables.c (tables_generate): Likewise.
14433
14434	* src/struniq.c (struniq_assert): Now returns void, and aborts
14435	if the assertion is false.
14436	(struniq_assert_p): Remove.
14437	* src/struniq.h: Likewise.
14438
144392002-11-18  Paul Eggert  <eggert@twinsun.com>
14440
14441	* data/glr.c (yygetLRActions): Replace `yyindex' with
14442	`yytable[yyindex]' to fix typo introduced in my 2002-11-09 patch.
14443	This fixes the regression with Sun ONE Studio 7 cc that I reported in
14444	<http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00077.html>.
14445
144462002-11-18  Akim Demaille  <akim@epita.fr>
14447
14448	* doc/bison.texinfo (Tracing): `yyprint' shouldn't prepend a
14449	space.
14450	From Tim Van Holder.
14451
144522002-11-17  Paul Eggert  <eggert@twinsun.com>
14453
14454	Pacify Sun ONE Studio 7 lint.  Also, rename "ParseError"
14455	to "SyntaxError" for consistency with my 2002-11-15 change.
14456
14457	* data/glr.c (YYDPRINTF, YYDSYMPRINT, YYDSYMPRINTF) [!YYDEBUG]: Do
14458	not define to {}, since this breaks the common use of `YYDPRINTF
14459	((...));' if a single statement is desired (e.g. before `else').
14460	Work around GCC warnings by surrounding corresponding calls with
14461	{} if needed.
14462	(yyhasResolvedValue): Remove unused function.
14463	(yymergeOptionSets, yyresolvStack): Use `continue;' for empty
14464	loop body.
14465	(yyreportSyntaxError): Renamed from yyreportParseError.
14466	(yyrecoverSyntaxError): Renamed from yyrecoverParseError.
14467	All uses changed.
14468	* tests/calc.at (_AT_DATA_CALC_Y): Make vars static instead of
14469	extern when possible.  Remove unused initializations.
14470
144712002-11-16  Akim Demaille  <akim@epita.fr>
14472
14473	Augment the similarity between GLR and LALR traces.
14474
14475	* data/yacc.c (yy_stack_print, YY_STACK_PRINT, yy_reduce_print)
14476	(YY_REDUCE_PRINT): New.
14477	(yyparse): Use them.
14478	* data/glr.c (yy_reduce_print): Use YYFPRINTF, no need for
14479	YYDPRINT here.
14480	(yyglrReduce, yyrecoverParseError, yyparse): Don't report the
14481	state reached after the reduction/recovery, since...
14482	(yyparse, yyprocessOneStack): Report the state we are entering in.
14483
144842002-11-16  Akim Demaille  <akim@epita.fr>
14485
14486	* src/getargs.h, src/getargs.c (trace_e, trace_args, trace_types):
14487	Add support for --trace=skeleton.
14488	* src/scan-skel.l: %option debug.
14489	Scan strings of non-@ or \n instead of character by character.
14490	(scan_skel): Handle trace_skeleton.
14491	(QPUTS): New.
14492	(@output_parser_name@, @output_header_name@): ``Restore'' their
14493	support (used to be M4 macros).
14494	* data/yacc.c: Quote larger chunks, a la glr.c.
14495	* data/lalr1.cc: Likewise.
14496	The header guards are no longer available, so use some other
14497	string than `YYLSP_NEEDED'.
14498
144992002-11-16  Akim Demaille  <akim@epita.fr>
14500
14501	Make the ``Printers and Destructors'' test more verbose, taking
14502	`yacc.c''s behavior as (possibly wrong) reference.
14503
14504	* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Use printf
14505	instead of fprint on stdout.
14506	Set and report the last_line of the symbols.
14507	Consistently display values and locations.
14508
145092002-11-16  Paul Eggert  <eggert@twinsun.com>
14510
14511	* data/yacc.c: Avoid over-quoting of __line__ and __file__.
14512
145132002-11-15  Paul Eggert  <eggert@twinsun.com>
14514
14515	* tests/actions.at (Actions after errors): New test case.
14516
14517	* data/glr.c, data/lalr1.cc, data/yacc.cc, doc/bison.texinfo,
14518	src/conflicts.c, src/parse-gram.y, src/tables.c, src/tables.h,
14519	tests/action.at, tests/calc.at, tests/conflicts.at,
14520	tests/cxx-type.at, tests/regression.at:
14521	"parse error" -> "syntax error" for POSIX compatibility.
14522	"parsing stack overflow..." -> "parser stack overflow" so
14523	that code matches Bison documentation.
14524
145252002-11-15  Akim Demaille  <akim@epita.fr>
14526
14527	* src/parse-gram.y (declaration): Have %parse-param and %lex-param
14528	take two BRACED_CODE, not two string_content.
14529	Free the scanner's obstack when we are done.
14530	(code_content): New.
14531	* tests/calc.at: Adjust.
14532	* doc/bison.texinfo: Adjust.
14533	Also, make sure to include the `,' for these declarations.
14534
145352002-11-15  Tim Van Holder  <tim.van.holder@pandora.be>
14536
14537	* m4/prereq.m4: Removed the commented jm_PREREQ_HASH
14538	definition; avoids potential autoreconf problems.
14539
145402002-11-15  Akim Demaille  <akim@epita.fr>
14541
14542	Always check the value returned by yyparse.
14543
14544	* tests/calc.at (_AT_DATA_CALC_Y): Have `main' exit with the value
14545	returned by yyparse.
14546	(_AT_CHECK_CALC_ERROR): Take the expected exit value as argument.
14547	Adjust calls.
14548	* tests/glr-regr1.at (glr-regr1.y): Have `main' exit with the value
14549	returned by yyparse.
14550
145512002-11-14  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
14552
14553	* data/glr.c (yyFail): Always set yyerrflag.  Corrects regression
14554	on input.at test.
14555
145562002-11-14  Paul Eggert  <eggert@twinsun.com>
14557
14558	* src/output.c (output_skeleton): Call xfopen instead of
14559	duplicating xfopen's body.
14560
14561	Fix bugs reported by Nelson H. F. Beebe in
14562	<http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00078.html>.
14563
14564	* tests/headers.at (AT_TEST_CPP_GUARD_H): Don't assume that
14565	"$CC -E foo.h" is allowed, as this doesn't work with the Portland
14566	Group compiler.  Instead, use "$CC -E bar.c".  Include the .h
14567	file twice in the grammar, as an extra check.
14568
14569	* tests/input.at (Torturing the Scanner): Surround the
14570	backslash-newline tests with "#if 0", to make it less likely that
14571	we'll run into compiler bugs.  Bring back solitary \ inside
14572	comment, but add a closing comment to work around HP C bug.  Don't
14573	test backslash-newline in C character constant.
14574
145752002-11-14  Akim Demaille  <akim@epita.fr>
14576
14577	* tests/synclines.at (AT_SYNCLINES_COMPILE): Ignore the exit
14578	status of the compiler.
14579	Calling `exit 1' is no longer needed.
14580	Reported by Nelson H. F. Beebe.
14581
145822002-11-14  Akim Demaille  <akim@epita.fr>
14583
14584	* tests/atlocal.in (CPPFLAGS): We have config.h.
14585	* tests/testsuite.at (AT_DATA_GRAMMAR_PROLOGUE, AT_DATA_GRAMMAR):
14586	New.
14587	* tests/actions.at, tests/calc.at, tests/conflicts.at,
14588	* tests/cxx-type.at, tests/glr-regr1.at, tests/headers.at,
14589	* tests/regression.at, tests/torture.at: Use them for all the
14590	grammars that are to be compiled.
14591	* tests/cxx-type.at (_AT_TEST_GLR_CALC): Rename as...
14592	* tests/cxx-type.at (_AT_TEST_GLR_CXXTYPES): this.
14593	* doc/bison.texinfo (GLR Parsers): Document `inline'.
14594
145952002-11-14  Akim Demaille  <akim@epita.fr>
14596
14597	* doc/bison.texinfo: Various formatting changes (alignments in
14598	samples, additional @group/@end group, GCS in samples.
14599	Use @deffn instead of simple @table to define the directives,
14600	macros, variables etc.
14601
146022002-11-13  Paul Eggert  <eggert@twinsun.com>
14603
14604	Fix some bugs reported by Albert Chin-A-Young in
14605	<http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00066.html>.
14606
14607	* tests/input.at (Torturing the Scanner): Don't invoke "cc a.c b.c
14608	-o c"; the HP C compiler chatters during compilation.
14609	Instead, invoke "cc -c a.c -o a.o; cc -c b.c -o b.o; cc a.o b.o -o c".
14610	* tests/headers.at (export YYLTYPE): Likewise.
14611
14612	* tests/input.at (Torturing the Scanner): Remove lines containing
14613	solitary backslashes, as they tickle a bug in the HP C compiler.
14614
14615	* tests/glr-regr1.at (Badly Collapsed GLR States): Avoid //
14616	comments, since they're not portable.  Use GNU coding style.
14617
146182002-11-13  Akim Demaille  <akim@epita.fr>
14619
14620	* data/yacc.c: Leave bigger chunks of quoted text.
14621	(YYDSYMPRINTF): New.
14622	Use it to report symbol activities.
14623	* data/glr.c (YYDSYMPRINTF): New.
14624	Use it.
14625
146262002-11-12  Paul Eggert  <eggert@twinsun.com>
14627
14628	Version 1.75b.
14629
14630	* data/glr.c (yydoAction): Return YYRESULTTAG, not int.
14631	(yyglrReduce): Return yyok, not 0.
14632	This should avoid the enumerated-type warnings reported
14633	by Nelson H. F. Beebe in
14634	<http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00057.html>.
14635
14636	* lib/bbitset.h (BITSET_INLINE): Remove.
14637	* lib/bitset.h [! BITSET_INLINE]: Remove.
14638	(bitset_set, bitset_reset, bitset_test): Rename local vars
14639	to avoid shadowing warnings by GCC.
14640
14641	* data/glr.c (inline): Remove #define.  It's the user's
14642	responsibility to #define it away, just like 'const'.
14643	This fixes one of the bugs reported by Nelson H. F. Beebe in
14644	<http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00058.html>.
14645
14646	* Makefile.maint (po-check): Scan .l and .y files instead of the
14647	.c and the .h files that they generate.  This fixes the bug
14648	reported by Tim Van Holder in:
14649	<http://lists.gnu.org/archive/html/bison-patches/2002-11/msg00062.html>
14650	Look for N_ as well as for _.  Try to avoid matching #define for
14651	N_ and _.
14652	* po/POTFILES.in: Remove src/parse-gram.c, src/scan-gram.c,
14653	src/system.h.  Add src/parse-gram.y, src/scan-gram.l.
14654	* src/scan-gram.l: Revamp regular expressions so that " and '
14655	do not confuse xgettext.
14656
14657	* src/struniq.h (struniq_new): Do not declare the return type
14658	to be 'const'; this violates the C standard.
14659	* src/struniq.c (struniq_new): Likewise.
14660
146612002-11-12  Albert Chin-A-Young <china@thewrittenword.com>
14662
14663	* src/Makefile.am (LDADD): Link $(LIBINTL) last to avoid the
14664	duplicate definition of optind on Tru64 UNIX 4.0D with the Compaq
14665	linker.
14666
146672002-11-12  Akim Demaille  <akim@epita.fr>
14668
14669	* Makefile.maint: Sync with Autoconf:
14670	(local_updates): New.
14671
146722002-11-12  Akim Demaille  <akim@epita.fr>
14673
14674	* po/POTFILES.in (src/lalr.c, src/state.c): Remove
14675
146762002-11-12  Akim Demaille  <akim@epita.fr>
14677
14678	* tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Display the
14679	locations.
14680
146812002-11-12  Akim Demaille  <akim@epita.fr>
14682
14683	* data/c.m4 (b4_yysymprint_generate): Pass *yyvaluep to YYPRINT,
14684	not yyvalue.
14685
146862002-11-12  Akim Demaille  <akim@epita.fr>
14687
14688	* tests/actions.at (AT_CHECK_PRINTER_AND_DESTRUCTOR): New.
14689	Use it to test the GLR parser.
14690
146912002-11-12  Akim Demaille  <akim@epita.fr>
14692
14693	* tests/regression.at (input.y): s/YYEOF/MYEOF/, as the skeleton
14694	defines it.
14695	* data/glr.c (yystos): New.
14696	(b4_yysymprint_generate, b4_yydestruct_generate): Invoke.
14697	(YYDSYMPRINT): New.
14698	(yyval): Don't define it, it is handled via M4.
14699	(yyrecoverParseError): Free verbosely the discarded symbols.
14700	* data/yacc.c (yysymprint): Remove, rather...
14701	(b4_yysymprint_generate): invoke.
14702	* data/c.m4 (b4_yysymprint_generate): New.
14703	Accept pointers as arguments, as opposed to the version from
14704	yacc.c.
14705	(b4_yydestruct_generate): Likewise.
14706	* tests/cations.at (Printers and Destructors): Use Bison directives
14707	instead of CPP macros.
14708	Don't rely on internal details.
14709
147102002-11-12  Akim Demaille  <akim@epita.fr>
14711
14712	* data/c.m4 (b4_yydestruct_generate, b4_symbol_actions): New.
14713	* data/yacc.c: Rename yychar1 as yytoken, as in glr.c.
14714	Don't work on yychar (i.e., do set it to YYEMPTY, don't match
14715	it against YYEMPTY and so forth), work on yytoken (i.e., set
14716	it to YYEMPTY etc.).
14717	(yydestruct): Replace with a b4_yydestruct_generate invocation.
14718	(b4_symbol_actions): Remove.
14719	* data/glr.c (YYTRANSLATE): As for yacc.c, if negative, it stands
14720	for 0, end-of-input.
14721
147222002-11-12  Akim Demaille  <akim@epita.fr>
14723
14724	* doc/bison.texinfo (Destructor Decl): New.
14725
147262002-11-12  Akim Demaille  <akim@epita.fr>
14727
14728	* src/tables.c (tables_generate): Use free for pointers that
14729	cannot be NULL, not XFREE.
14730	(pack_vector): Use assert, not fatal, for bound violations.
14731	* src/state.c (state_new): Likewise.
14732	* src/reader.c (reader): Likewise.
14733	* src/lalr.c (set_goto_map): Likewise.
14734	* src/location.h (LOCATION_PRINT): If first_line is 0, just issue
14735	the file name.
14736
147372002-11-12  Akim Demaille  <akim@epita.fr>
14738
14739	* src/scan-gram.l, src/reader.h (scanner_last_string_free):
14740	Restore.
14741	* src/scan-gram.l (last_string): Is global to the file, not to
14742	yylex.
14743	* src/parse-gram.y (input): Don't append the epilogue here,
14744	(epilogue.opt): do it here, and free the scanner's obstack.
14745	* src/reader.c (epilogue_set): Rename as...
14746	(epilogue_augment): this.
14747	* data/c.m4 (b4_epilogue): Defaults to empty.
14748
147492002-11-12  Akim Demaille  <akim@epita.fr>
14750
14751	* src/getargs.c (long_options): Remove duplicates.
14752	* src/vmsgetargs.c, src/build.com, src/bison.cld, src/vmshlp.mar:
14753	Remove.
14754	* doc/bison.rnh: Remove.
14755	* doc/bison.texinfo (VMS Invocation): Remove.
14756
147572002-11-12  Akim Demaille  <akim@epita.fr>
14758
14759	* src/struniq.h, src/struniq.c (struniq_t): Is const.
14760	(STRUNIQ_EQ, struniq_assert, struniq_assert_p): New.
14761
14762	Use struniq for symbols.
14763
14764	* src/symtab.h (symbol_t): The tag member is a struniq.
14765	(symbol_type_set): Adjust.
14766	* src/symtab.c (symbol_new): Takes a struniq.
14767	(symbol_free): Don't free the tag member.
14768	(hash_compare_symbol_t, hash_symbol_t): Rename as...
14769	(hash_compare_symbol, hash_symbol): these.
14770	Use the fact that tags as struniqs.
14771	(symbol_get): Use struniq_new.
14772	* src/symlist.h, src/symlist.c (symbol_list_n_type_name_get):
14773	Returns a strniq.
14774	* src/reader.h (merger_list, grammar_currentmerge_set): The name
14775	and type members are struniqs.
14776	* src/reader.c (get_merge_function)
14777	(grammar_current_rule_merge_set): Adjust.
14778	(TYPE, current_type): Are struniq.
14779
14780	Use struniq for file names.
14781
14782	* src/files.h, src/files.c (infile): Split into...
14783	(grammar_file, current_file): these.
14784	* src/scan-gram.c (YY_USER_INIT, handle_syncline): Adjust.
14785	* src/reduce.c (reduce_print): Likewise.
14786	* src/getargs.c (getargs): Likewise.
14787	* src/complain.h, src/complain.c: Likewise.
14788	* src/main.c (main): Call struniqs_new early enough to use it for
14789	file names.
14790	Don't free the input file name.
14791
147922002-11-12  Akim Demaille  <akim@epita.fr>
14793
14794	* src/symtab.c (symbol_free): Remove dead deactivated code:
14795	type_name are properly removed.
14796	Don't use XFREE to free items that cannot be NULL.
14797	* src/struniq.h, src/struniq.c: New.
14798	* src/main.c (main): Initialize/free struniqs.
14799	* src/parse-gram.y (%union): Add astruniq member.
14800	(yyprint): Adjust.
14801	* src/scan-gram.l (<{tag}>): Return a struniq.
14802	Free the obstack bit that used to store it.
14803	* src/symtab.h (symbol_t): The 'type_name' member is a struniq.
14804
148052002-11-11  Paul Eggert  <eggert@twinsun.com>
14806
14807	Revamp to fix many (but not all) of the C- and M4-related quoting
14808	problems.  Among other things, this fixes the Bison bug reported
14809	by Jan Hubicka when processing the Bash grammar; see:
14810	<http://lists.gnu.org/archive/html/bison-patches/2002-11/msg00039.html>
14811
14812	Use new @ escapes consistently.  Represent brackets with @{ and @}
14813	rather than @<:@ and @:>@, since this works a bit better with dumb
14814	editors like vi.  Represent @ with @@, since @ is now consistently
14815	an escape.  Use @oline@ and @ofile@ rather than __oline__ and
14816	__ofile__, to avoid unexpected expansions.  Similarly, use @output
14817	rather than #output.
14818
14819	* data/c.m4 (b4_copyright): Omit file name from comment, since
14820	the file name could contain "*/".
14821	(b4_synclines_flag): Don't quote the 2nd argument; it should already
14822	be quoted.  All uses changed.
14823
14824	* data/glr.c: Use new @ escapes consistently.
14825	(b4_input_suffix, b4_output_parser_suffix, b4_output_parser_name,
14826	b4_output_header_suffix, b4_output_header_name, b4_header_guard):
14827	Remove, since they couldn't handle arbitrary characters in file
14828	names.
14829	* data/lalr1.cc: Likewise.
14830	* data/yacc.c: Likewise.
14831
14832	* src/files.c (output_infix): Remove; all uses removed.
14833	* src/files.h: Likewise.
14834
14835	* data/glr.c: Remove use of "#ifdef b4_header_guard", since it
14836	mishandled funny characters in file names, and anyway it isn't
14837	needed any more.
14838	* data/yacc.c: Likewise.
14839	* data/lalr1.cc: Use YYSLP_NEEDED instead of b4_header_guard.
14840
14841	* data/glr.c (YYSTYPE_IS_TRIVIAL): Define when the .h file would.
14842	* data/yacc.c: Likewise.
14843
14844	* src/muscle_tab.c: Include quotearg.h, since we need to quote C
14845	strings now.
14846	(muscle_init): Quote filename as a C string.
14847	* src/muscle_tab.h (MUSCLE_GROW_STRING_PAIR): Remove; unused.
14848	(MUSCLE_OBSTACK_SGROW, MUSCLE_INSERT_C_STRING): New macros.
14849	* src/output.c (escaped_file_name_output): New function.
14850	(prepare_symbols): Quote tokens for M4.
14851	(prepare): Don't insert output_infix, output_prefix,
14852	output_parser_name, output_header_name; this is now down by scan-skel.
14853	Insert skeleton as a C string.
14854
14855	* src/output.c (user_actions_output, symbol_destructors_output,
14856	symbol_printers_output): Quote filenames for C and M4.
14857	* src/reader.c (prologue_augment, epilogue_set): Likewise.
14858
14859	* src/scan-gram.l (<SC_CHARACTER>): Don't worry about any backslash
14860	escapes other than \\ and \'; this simplifies the code.
14861	(<SC_STRING>): Likewise, for \\ and \".
14862	(<SC_COMMENT,SC_LINE_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,
14863	SC_PROLOGUE,SC_EPILOGUE>): Escape $ and @, too.
14864	Use new escapes @{ and @} for [ and ].
14865
14866	* src/scan-skel.l (yylineno, yyoutname): Remove static vars, replacing
14867	them with auto vars.
14868	Switch to new escape scheme, where @ is the escape character uniformly.
14869	Abort if a stray escape character is found.  Avoid unbounded input
14870	buffer when parsing non-escaped text.
14871
14872	* tests/input.at (Torturing the Scanner): Add tests that @oline@,
14873	__oline__, #output, $@, and @{ do not have unintended meanings.
14874
148752002-11-09  Paul Eggert  <eggert@twinsun.com>
14876
14877	Fix the test failure due to GCC warnings described in
14878	<http://lists.gnu.org/archive/html/bug-bison/2002-11/msg00000.html>.
14879	* data/glr.c (yyis_pact_ninf, yyis_table_ninf): New macros, which
14880	evaluate to 0 if it's impossible for NINF to be in the respective
14881	table.
14882	(yygetLRActions, yyrecoverParseError): Use them.
14883
14884	* src/scan-gram.l (unexpected_end_of_file): Fix bug: columns were
14885	counted in the token inserted at end of file.  Now takes
14886	location_t *, not location_t, so that the location can be
14887	adjusted.  All uses changed.
14888
14889	* tests/regression.at (Invalid inputs): Adjust wording in
14890	diagnostic to match the new behavior.
14891
14892	* tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR,
14893	AT_DATA_HORIZONTAL_GRAMMAR, AT_DATA_LOOKAHEADS_GRAMMAR,
14894	AT_DATA_STACK_TORTURE): Replace `assert (x);' with `if (! (x))
14895	abort ();'.  This reduces the runtime of the "Many lookaheads"
14896	test from 27.6 to 2.7 minutes on a 440 MHz Ultrasparc III running
14897	GCC 3.2.
14898
148992002-11-07  Paul Eggert  <eggert@twinsun.com>
14900
14901	* src/parse-gram.y (CHARACTER): Remove unused token.
14902	All uses removed.
14903
14904	* src/scan-gram.l: Remove stack option.  We no longer use the
14905	stack, since the stack was never deeper than 1; instead, use the
14906	new auto var c_context to record the stacked value.
14907
14908	Remove nounput option.  At an unexpected end of file, we now unput
14909	the minimal input necessary to end cleanly; this simplifies the
14910	code.
14911
14912	Avoid unbounded token sizes where this is easy.
14913
14914	(unexpected_end_of_file): New function.
14915	Use it to systematize the error message on unexpected EOF.
14916	(last-string): Now auto, not static.
14917	(YY_OBS_FREE): Remove unnecessary do while (0) wrapper.
14918	(scanner_last_string_free): Remove; not used.
14919	(percent_percent_count): Move decl to just before use.
14920	(SC_ESCAPED_CHARACTER): Return ID at unexpected end of file,
14921	not the (never otherwised-used) CHARACTER.
14922
149232002-11-07  Akim Demaille  <akim@epita.fr>
14924
14925	Let yyerror always receive the msg as last argument, so that
14926	yyerror can be variadic.
14927
14928	* data/yacc.c (b4_yyerror_args): New.
14929	Use it when calling yyerror.
14930	* data/glr.c (b4_yyerror_args, b4_lyyerror_args): New.
14931	Use it when calling yyerror.
14932	* doc/bison.texinfo (Error Reporting): Adjust.
14933	* tests/calc.at (_AT_DATA_CALC_Y): Adjust.
14934	* tests/cxx-type.at (_AT_TEST_GLR_CALC): Adjust.
14935
149362002-11-06  Akim Demaille  <akim@epita.fr>
14937
14938	#line should have quoted strings.
14939	Ideally, this should be done by m4_quotearg.
14940
14941	* src/scan-skel.l: Include quotearg.h.
14942	Quote __ofile__.
14943	* src/output.c (symbol_printers_output)
14944	(symbol_destructors_output): Quote the file name.
14945
149462002-11-06  Akim Demaille  <akim@epita.fr>
14947
14948	* tests/regression.at (Invalid inputs): Adjust to the recent
14949	messages.
14950
149512002-11-06  Akim Demaille  <akim@epita.fr>
14952
14953	Restore --no-lines.
14954	Reported by Jim Kent.
14955
14956	* data/c.m4 (b4_syncline): New.
14957	* data/glr.c, data/yacc.c, data/lalr1.cc: Use it.
14958	* src/reader.c (prologue_augment, epilogue_set): Use b4_syncline.
14959	* src/output.c (user_actions_output): Likewise.
14960	(prepare): Define 'b4_synclines_flag'.
14961	* src/muscle_tab.c (muscle_init): Don't define b4_linef.
14962
149632002-11-06  Akim Demaille  <akim@epita.fr>
14964
14965	* src/main.c (main): Free `infile'.
14966	* src/scan-gram.l (handle_syncline): New.
14967	Recognize `#line'.
14968	* src/output.c (user_actions_output, symbol_destructors_output)
14969	(symbol_printers_output): Use the location's file name, not
14970	infile.
14971	* src/reader.c (prologue_augment, epilogue_set): Likewise.
14972
149732002-11-05  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
14974
14975	* src/tables.c (matching_state): Don't allow states to match if
14976	either has GLR conflict entries.
14977
149782002-11-05  Paul Eggert  <eggert@twinsun.com>
14979
14980	* src/scan-gram.l: Use more accurate diagnostics, e.g.
14981	"integer out of range" rather than "invalid value".
14982	* tests/input.at (Invalid $n, Invalid @n): Change expected wording
14983	accordingly.
14984
14985	Scan <% and %> digraphs in C code as POSIX 1003.1-2001 requires.
14986	Also, remove one static variable in the scanner.
14987
14988	* src/scan-gram.l (braces_level): Now auto, not static.
14989	Initialize to zero if the compiler is being picky.
14990	(INITIAL): Clear braces_level instead of incrementing it.
14991	(SC_BRACED_CODE): Treat <% and %> as { and } when inside C code,
14992	as POSIX 1003.1-2001 requires.
14993	* src/system.h (IF_LINT): New macro, taken from coreutils.
14994	* configure.ac: Define "lint" if --enable-gcc-warnings.
14995
149962002-11-05  Akim Demaille  <akim@epita.fr>
14997
14998	* src/scan-gram.l: When it starts with `%', complain about the
14999	whole directive, not just that `invalid character: %'.
15000
150012002-11-04  Akim Demaille  <akim@epita.fr>
15002
15003	* Makefile.maint: Update from Autoconf.
15004	(update, cvs-update, po-update, do-po-update): New.
15005
150062002-11-04  Akim Demaille  <akim@epita.fr>
15007
15008	* tests/glr-regr1.at (Badly Collapsed GLR States): Prototype yylex
15009	and yyerror.
15010	Have yyerror `use' its arguments.
15011	* tests/calc.at (AT_CHECK_PUSHDEFS): AT_YYERROR_SEES_LOC_IF
15012	returns true when location & yacc & pure & parse-param.
15013	(_AT_DATA_CALC_Y): Let yyerror ``use'' its arguments.
15014
150152002-11-04  Akim Demaille  <akim@epita.fr>
15016
15017	* src/location.h (LOCATION_PRINT): Use quotearg slot 3 to avoid
15018	clashes.
15019	* src/scan-gram.l: Use [\'] instead of ['] to pacify
15020	font-lock-mode.
15021	Use complain_at.
15022	Use quote, not quote_n since LOCATION_PRINT no longer uses the
15023	slot 0.
15024
150252002-11-03  Paul Eggert  <eggert@twinsun.com>
15026
15027	* src/reader.c (get_merge_function, grammar_current_rule_check):
15028	Use consistent diagnostics for reporting type name clashes.
15029	Quote the types with <>, for consistency with Yacc.
15030	* tests/input.at (Type Clashes): Adjust to diagnostic changes.
15031
150322002-11-03  Akim Demaille  <akim@epita.fr>
15033
15034	* data/c.m4 (b4_identification, b4_user_args, b4_parse_param):
15035	New.
15036	* data/yacc.m4 (b4_pure_args, b4_Pure_args): New.
15037	(b4_parse_param): Remove.
15038	Use b4_identification.
15039	Propagate b4_pure_args where needed to pass them to yyerror.
15040	* data/glr.m4 (b4_parse_param): Remove.
15041	(b4_user_formals, b4_pure_args, b4_pure_formals, b4_lpure_args)
15042	(b4_lpure_formals): New.
15043	Use b4_identification.
15044	(YY_USER_FORMALS, YY_USER_ARGS): Remove, replaced by
15045	b4_user_formals and b4_user_args.
15046	(yyexpandGLRStack, yyFail, yyaddDeferredAction, yyglrShiftDefer)
15047	(yyreportAmbiguity): When using a pure parser, also need
15048	the location, and the parse-params.
15049	Adjust callers.
15050	(yyuserAction, yyglrShift, yyreportParseError, yyrecoverParseError):
15051	When using a pure parser, also need the parse-params.
15052	Adjust callers.
15053	* tests/calc.at: Test pure (%pure-parser) and absolutely pure
15054	(%pure-parser + %parse-param) LALR and GLR parsers.
15055	(AT_CHECK_PUSHDEFS, AT_CHECK_POPDEFS): New, define AT_PARAM_IF,
15056	AT_LOCATION_IF, AT_PURE_IF, AT_GLR_IF, AAT_PURE_AND_LOC_IF,
15057	AT_GLR_OR_PARAM_IF, AT_YYERROR_ARG_LOC_IF, AT_YYERROR_SEES_LOC_IF.
15058	(_AT_DATA_CALC_Y): Equip for purity of yyerror.
15059	(_AT_CHECK_CALC_ERROR): Use AT_YYERROR_SEES_LOC_IF.
15060	* tests/cxx-type.at (_AT_TEST_GLR_CALC): Equip for yyerror purity.
15061	* doc/bison.texinfo: Untabify the whole file.
15062	(Parser Function): Document %parse-param, deprecate YYPARSE_PARAM.
15063	(Pure Calling): Document %lex-param, deprecate YYLEX_PARAM.
15064	(Error Reporting): Adjust to these new directives.
15065	Document %error-verbose, deprecate YYERROR_VERBOSE.
15066
150672002-11-03  Akim Demaille  <akim@epita.fr>
15068
15069	* tests/calc.at: Change all the AT_CHECK_CALC_LALR and
15070	AT_CHECK_CALC_GLR invocations to use % directives, instead of
15071	command line options.
15072	* tests/cxx-type.at: Formatting changes.
15073
150742002-11-03  Paul Eggert  <eggert@twinsun.com>
15075
15076	* src/scan-gram.l: Revamp to fix POSIX incompatibilities,
15077	to count columns correctly, and to check for invalid inputs.
15078
15079	Use mbsnwidth to count columns correctly.  Account for tabs, too.
15080	Include mbswidth.h.
15081	(YY_USER_ACTION): Invoke extend_location rather than LOCATION_COLUMNS.
15082	(extend_location): New function.
15083	(YY_LINES): Remove.
15084
15085	Handle CRLF in C code rather than in Lex code.
15086	(YY_INPUT): New macro.
15087	(no_cr_read): New function.
15088
15089	Scan UCNs, even though we don't fully handle them yet.
15090	(convert_ucn_to_byte): New function.
15091
15092	Handle backslash-newline correctly in C code.
15093	(SC_LINE_COMMENT, SC_YACC_COMMENT): New states.
15094	(eols, blanks): Remove.  YY_USER_ACTION now counts newlines etc.;
15095	all uses changed.
15096	(tag, splice): New EREs.  Do not allow NUL or newline in tags.
15097	Use {splice} wherever C allows backslash-newline.
15098	YY_STEP after space, newline, vertical-tab.
15099	("/*"): BEGIN SC_YACC_COMMENT, not yy_push_state (SC_COMMENT).
15100
15101	(letter, id): Don't assume ASCII; e.g., spell out a-z.
15102
15103	({int}, handle_action_dollar, handle_action_at): Check for integer
15104	overflow.
15105
15106	(YY_STEP): Omit trailing semicolon, so that it's more like C.
15107
15108	(<SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER>): Allow \0 and \00
15109	as well as \000.  Check for UCHAR_MAX, not 255.
15110	Allow \x with an arbitrary positive number of digits, as in C.
15111	Check for overflow here.
15112	Allow \? and UCNs, for compatibility with C.
15113
15114	(handle_symbol_code_dollar): Use quote_n slot 1 to avoid collision
15115	with quote slot used by complain_at.
15116
15117	* tests/input.at: Add tests for backslash-newline, m4 quotes
15118	in symbols, long literals, and funny escapes in strings.
15119
15120	* configure.ac (jm_PREREQ_MBSWIDTH): Add.
15121	* lib/Makefile.am (libbison_a_SOURCES): Add mbswidth.h, mbswidth.c.
15122	* lib/mbswidth.h, lib/mbswidth.c: New files, from GNU gettext.
15123	* m4/Makefile.am (EXTRA_DIST): Add mbswidth.m4.
15124	* m4/mbswidth.m4: New file, from GNU coreutils.
15125
15126	* doc/bison.texinfo (Grammar Outline): Document // comments.
15127	(Symbols): Document that trigraphs have no special meaning in Bison,
15128	nor is backslash-newline allowed.
15129	(Actions): Document that trigraphs have no special meaning.
15130
15131	* src/location.h (LOCATION_COLUMNS, LOCATION_LINES): Remove;
15132	no longer used.
15133
151342002-11-02  Paul Eggert  <eggert@twinsun.com>
15135
15136	* src/reader.c: Don't include quote.h; not needed.
15137	(get_merge_function): Reword warning to be consistent with
15138	type clash diagnostic in grammar_current_rule_check.
15139
15140	* lib/quotearg.c (quotearg_buffer_restyled): Fix off-by-two
15141	bug in trigraph handling.
15142
15143	* src/output.c (prepare_symbols): When printing token names,
15144	escape "[" as "@<:@" and likewise for "]".
15145
15146	* src/system.h (errno): Remove declaration, as we are now
15147	assuming C89 or better, and C89 guarantees errno.
15148
151492002-10-30  Paul Eggert  <eggert@twinsun.com>
15150
15151	* lib/bitset_stats.c (bitset_stats_read, bitset_stats_write):
15152	Check for close failures.
15153	* src/files.h (xfclose): Return void, not int, since it always
15154	returned zero.
15155	* src/files.c (xfclose): Likewise.  Report I/O error if ferror
15156	indicates one.
15157	* src/output.c (output_skeleton): Use xfclose rather than fclose
15158	and ferror.  xfclose now checks ferror.
15159
15160	* data/glr.c (YYLEFTMOST_STATE): Remove.
15161	(yyreportTree): Use a stack-based leftmost state.  This avoids
15162	our continuing battles with bogus warnings about initializers.
15163
151642002-10-30  Akim Demaille  <akim@epita.fr>
15165
15166	* src/system.h: Don't use #ifdef/#ifndef on HAVE_ values, only
15167	#if.
15168
151692002-10-29  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
15170
15171	* tests/glr-regr1.at: New test for reported regressions.
15172	* tests/testsuite.at: Add glr-regr1.at test.
15173	* tests/Makefile.am: Add glr-regr1.at test.
15174
151752002-10-24  Paul Eggert  <eggert@twinsun.com>
15176
15177	Version 1.75a.
15178
15179	* tests/calc.at (_AT_DATA_CALC_Y): Remove unused strcat declaration.
15180	* tests/cxx-type.at (_AT_TEST_GLR_CALC): Include stdlib.h, since
15181	we use malloc.  Don't assume 'A' through 'Z' are contiguous.
15182	Don't assume strdup exists; POSIX says its an XSI extension.
15183	Check for buffer overflow on input.
15184
151852002-10-24  Akim Demaille  <akim@epita.fr>
15186
15187	* src/output.c (output_skeleton): Don't disable M4sugar comments
15188	too soon: it results in comments being expanded.
15189	* data/yacc.c, data/glr.c, data/lalr1.cc: Do it right before the
15190	first output.
15191
151922002-10-24  Akim Demaille  <akim@epita.fr>
15193
15194	* data/yacc.c (m4_int_type): New.
15195	* data/c.m4 (m4_int_type): Don't use yysigned_char, but `signed
15196	char' as only yacc.c wants K&R portability.
15197	* data/glr.c (yysigned_char): Remove.
15198	* data/lalr1.cc: Rename the trailing b4_name as b4_parser_class_name.
15199	Reported by Quoc Peyrot.
15200
152012002-10-23  Paul Eggert  <eggert@twinsun.com>
15202
15203	* src/main.c (main): With --trace=time, report times even if a
15204	non-fatal error occurs.  Formerly, the times were reported in some
15205	such cases but not in others.
15206	* src/reader.c (reader): Just return if a complaint has been issued,
15207	instead of exiting, so that 'main' can report times.
15208
152092002-10-22  Akim Demaille  <akim@epita.fr>
15210
15211	* src/system.h: Include sys/types.
15212	Reported by Bert Deknuydt.
15213
152142002-10-23  Paul Eggert  <eggert@twinsun.com>
15215
15216	* configure.ac (AC_PROG_LEX): Use instead of AM_PROG_LEX.
15217	Suggested by Art Haas.
15218
152192002-10-22  Paul Eggert  <eggert@twinsun.com>
15220
15221	* src/complain.c (exit) [! (STDC_HEADERS || _LIBC)]: Remove exit
15222	decl; not needed any more.
15223	* src/main.c (main): Use return to exit, undoing yesterday's change.
15224	The last OS that we could find where this wouldn't work is
15225	SunOS 3.5, and that's too old to worry about now.
15226
15227	* data/glr.c (struct yyltype): Define members even when not
15228	doing locations.  This is more consistent with yacc.c, and it
15229	works around the following bug reports:
15230	http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00106.html
15231	http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00111.html
15232
15233	* doc/bison.texinfo: Minor spelling and typographical fixes.  Use
15234	@acronym consistently.  Standardize on "Yacc" instead of "YACC",
15235	"Algol" instead of "ALGOL".  Give a bit more history about BNF.
15236
152372002-10-22  Akim Demaille  <akim@epita.fr>
15238
15239	* data/README: New.
15240
152412002-10-21  Paul Eggert  <eggert@twinsun.com>
15242
15243	Be consistent about 'bool'; the old code used an enum in one
15244	module and an int in another, and this violates the C standard.
15245	* m4/stdbool.m4: New file, from coreutils 4.5.3.
15246	* configure.ac (AC_HEADER_STDBOOL): Add.
15247	* m4/Makefile.am (EXTRA_DIST): Add stdbool.m4.
15248	* src/muscle_tab.c (hash_compare_muscles): (a ? FALSE : TRUE) -> (! a)
15249	* src/symtab.c (hash_compare_symbol_t): Likewise.
15250	* src/system.h (bool, false, true): Use a definition consistent
15251	with ../lib/hash.c.  All uses changed.
15252
15253	* src/complain.c (warning_issued): Renamed from warn_message_count,
15254	so that we needn't worry about integer overflow (!).
15255	Now of type bool.  All uses changed.
15256	(complaint_issued): Renamed from complain_message_count; likewise.
15257
15258	* src/main.c (main): Use exit to exit with failure.
15259
15260	* src/complain.c (fatal_at, fatal): Use EXIT_FAILURE and EXIT_SUCCESS
15261	rather than 1 and 0.
15262	* src/main.c (main): Likewise.
15263	* src/getargs.c (getargs): Likewise.
15264	* src/reader.c (reader): Likewise.
15265
15266	* src/getarg.c (getargs): Remove duplicate code for
15267	"Try `bison --help'".
15268
15269	* src/files.c (xfopen, xfclose): Use EXIT_FAILURE rather than 2.
15270	What was that "2" for?
15271
15272	* src/complain.h (fatal, fatal_at): Add __attribute__((__noreturn__)).
15273	* src/getargs.c (usage): Likewise.
15274
15275	* src/getargs.c (getargs): When there are too few operands, report
15276	the last one.  When there are too many, report the first extra
15277	one.  This is how diffutils does it.
15278
152792002-10-20  Paul Eggert  <eggert@twinsun.com>
15280
15281	Remove K&R vestiges.
15282	* configure.ac (AC_C_CONST, AM_C_PROTOTYPES): Remove.
15283	* src/complain.c (VA_START): Remove.  Assume prototypes.
15284	(vfprintf) [! (HAVE_VPRINTF || defined vfprintf)]: New macro.
15285	(private_strerror, warn_at, warn, complain_at, complain, fatal_at,
15286	fatal): Assume prototypes.
15287	* src/complain.h: Assume prototypes.
15288	* src/system.h (PARAMS): Remove.
15289	Include <limits.h> unconditionally, since it's guaranteeed even
15290	for a freestanding C89 compiler.
15291	(SHRT_MIN, SHRT_MAX): Remove, since C89 guarantees them.
15292	* src/vmsgetargs.c (getargs, cli_present, cli_get_value): Prototype.
15293
152942002-10-20  Akim Demaille  <akim@epita.fr>
15295
15296	* src/muscle_tab.c (muscle_grow): Remove trailing debugging code.
15297	* data/glr.c (YY_USER_FORMALS, YY_USER_ARGS): New.
15298	(yyuserAction, yydoAction, yyglrReduce, yyresolveValue)
15299	(yyresolveStates, yyresolveAction, yyresolveStack)
15300	(yyprocessOneStack): Use them.
15301	(yy_reduce_print): New.
15302	* tests/calc.at (_AT_DATA_CALC_Y): Exercise %parse-param.
15303
153042002-10-20  Akim Demaille  <akim@epita.fr>
15305
15306	* data/c.m4 (b4_c_ansi_args): Recognize functions with no
15307	arguments and output `void'.
15308	(b4_c_function): Rename as...
15309	(b4_c_function_def): this.
15310	(b4_c_function_decl, b4_c_ansi_function_def)
15311	(b4_c_ansi_function_decl): New.
15312	Change the interpretation of the arguments: before `int, foo', now
15313	`int foo, foo'.
15314	* data/yacc.c (yyparse): Prototype and define thanks to these.
15315	Adjust b4_c_function_def uses.
15316	* data/glr.c (yyparse): Likewise, but ANSI only.
15317
153182002-10-20  Akim Demaille  <akim@epita.fr>
15319
15320	* src/output.c (prepare): Move the definition of `tokens_number',
15321	`nterms_number', `undef_token_number', `user_token_number_max'
15322	to...
15323	(prepare_tokens): Here.
15324	(prepare_tokens): Rename as...
15325	(prepare_symbols): this.
15326	(prepare): Move the definition of `rules_number' to...
15327	(prepare_rules): here.
15328	(prepare): Move the definition of `last', `final_state_number',
15329	`states_number' to...
15330	(prepare_states): here.
15331	* data/yacc.c, data/lalr1.cc, data/glr.c: Normalize `>' into `<'.
15332
153332002-10-20  Akim Demaille  <akim@epita.fr>
15334
15335	* src/tables.h, src/tables.c, src/output.c: Comment changes.
15336
153372002-10-20  Akim Demaille  <akim@epita.fr>
15338
15339	* data/yacc.c, data/yacc.c (b4_location_if, b4_pure_if): Move to...
15340	* data/c.m4: here.
15341
153422002-10-20  Akim Demaille  <akim@epita.fr>
15343
15344	* src/output.c (prepare): Use MUSCLE_INSERT_STRING.
15345	* src/muscle_tab.c (muscle_pair_list_grow): Rename `val as
15346	`pair'.
15347	(muscle_init): Move the `b4_ltype', `b4_maxdepth', `b4_initdepth',
15348	`name' to...
15349	* data/glr.c, data/lalr1.cc, data/yacc.c (b4_location_type)
15350	(b4_stack_depth_init, b4_stack_depth_max, b4_parser_class_name):
15351	These.
15352
153532002-10-19  Paul Eggert  <eggert@twinsun.com>
15354
15355	Do not create a temporary file, as that involves security and
15356	cleanup headaches.  Instead, use a pair of pipes.
15357	Derived from a suggestion by Florian Krohm.
15358	* lib/subpipe.c, lib/subpipe.h, m4/subpipe.m4: New files.
15359	* lib/mkstemp.c, lib/readpipe.c, lib/tempname.c, m4/mkstemp.m4: Remove.
15360	* configure.ac (UTILS_FUNC_MKSTEMP, jm_PREREQ_TEMPNAME): Remove.
15361	(BISON_PREREQ_SUBPIPE): Add.
15362	* lib/Makefile.am (libbison_a_SOURCES): Remove readpipe.c.
15363	Add subpipe.h, subpipe.c.
15364	* m4/Makefile.am (EXTRA_DIST): Remove mkstemp.m4.  Add subpipe.m4.
15365	* po/POTFILES.in: Add lib/subpipe.c.
15366	* src/output.c: Include "subpipe.h".
15367	(m4_invoke): Remove decl.
15368	(scan_skel): New decl.
15369	(output_skeleton): Use pipe rather than temporary file for m4 input.
15370	Check that m4sugar.m4 is readable, to avoid deadlock.
15371	Check for pipe I/O error.
15372	* src/scan-skel.l (readpipe): Remove decl.
15373	(scan_skel): New function, to be used in place of m4_invoke.
15374	Read from stream rather than file.
15375
15376	* lib/timevar.c (TICKS_TO_MSEC, CLOCKS_TO_MSEC): Do not cast to
15377	float, as this generates a warning on Solaris 8 + GCC 3.2 with
15378	--enable-gcc-warnings.  Instead, divide into 1.0 rather than 1;
15379	this generates a more-accurate value anyway.
15380
15381	* lib/timevar.c (timervar_accumulate): Rename locals to
15382	avoid confusion with similarly-named more-global.
15383	* src/muscle_tab.c (muscle_pair_list_grow): Likewise.
15384
15385	* src/output.c (prepare): Use xstrdup to convert char const *
15386	to char *, to avoid GCC warning.
15387
153882002-10-19  Akim Demaille  <akim@epita.fr>
15389
15390	* tests/calc.at (_AT_DATA_CALC_Y): Define VAL, LOC, LEX_FORMALS,
15391	LEX_PRE_FORMALS, LEX_ARGS, LEX_PRE_ARGS, USE_LEX_ARGS.
15392	Use them to have `calc.y' ready for %pure-parser.
15393	* data/yacc.c (YYLEX): Pass a yylex return type to
15394	b4_c_function_call.
15395
153962002-10-19  Akim Demaille  <akim@epita.fr>
15397
15398	Prototype support of %lex-param and %parse-param.
15399
15400	* src/parse-gram.y: Add the definition of the %lex-param and
15401	%parse-param tokens, plus their rules.
15402	Drop the `_' version of %glr-parser.
15403	Add the "," token.
15404	* src/scan-gram.l (INITIAL): Scan them.
15405	* src/muscle_tab.c: Comment changes.
15406	(muscle_insert, muscle_find): Rename `pair' as `probe'.
15407	* src/muscle_tab.h (MUSCLE_INSERT_PREFIX): Remove unused.
15408	(muscle_entry_s): The `value' member is no longer const.
15409	Adjust all dependencies.
15410	* src/muscle_tab.c (muscle_init): Adjust: use
15411	MUSCLE_INSERT_STRING.
15412	Initialize the obstack earlier.
15413	* src/muscle_tab.h, src/muscle_tab.c (muscle_grow)
15414	(muscle_pair_list_grow): New.
15415	* data/c.m4 (b4_c_function_call, b4_c_args): New.
15416	* data/yacc.c (YYLEX): Use b4_c_function_call to honor %lex-param.
15417	* tests/calc.at: Use %locations, not --locations.
15418	(AT_CHECK_CALC_GLR): Use %glr-parser, not %glr_parser.
15419
154202002-10-19  Akim Demaille  <akim@epita.fr>
15421
15422	* src/getargs.c (usage): Take status as argument and exit
15423	accordingly.
15424	Report the traditional `Try ... --help' message when status != 0.
15425	(usage, version): Don't take a FILE * as arg, it is pointless.
15426	(getargs): When there is an incorrect number of arguments, make it
15427	an error, and report it GNUlically thanks to `usage ()'.
15428
154292002-10-18  Paul Eggert  <eggert@twinsun.com>
15430
15431	* data/glr.c (yyreportParseError): Don't assume that sprintf
15432	yields the length of the printed string, as this is not true
15433	on SunOS 4.1.4.  Reported by Peter Klein.
15434
15435	* tests/calc.at (_AT_DATA_CALC_Y): #undef memcmp and realloc.
15436	* tests/conflicts.at (%nonassoc and eof): Likewise.
15437	Fixes SunOS 4.1.4 test failure reported by Peter Klein.
15438
154392002-10-17  Akim Demaille  <akim@epita.fr>
15440
15441	* src/getargs.h (trace_e): Add trace_scan, and trace_parse.
15442	* src/getargs.c (trace_types, trace_args): Adjust.
15443	* src/reader.c (grammar_current_rule_prec_set)
15444	(grammar_current_rule_dprec_set, grammar_current_rule_merge_set):
15445	Standardize error messages.
15446	And s/@prec/%prec/!
15447	(reader): Use trace_flag to enable scanner/parser debugging,
15448	instead of an adhoc scheme.
15449	* src/scan-gram.l: Remove trailing debugging code.
15450
154512002-10-16  Paul Eggert  <eggert@twinsun.com>
15452
15453	* src/muscle_tab.h (MUSCLE_TAB_H_): Was misspelled as
15454	MUSCLE_TAB_H.
15455
15456	* NEWS: Officially drop support for building Bison with K&R C,
15457	since it didn't work anyway and it's not worth worrying about.
15458	* Makefile.maint (wget_files): Remove ansi2knr.c.
15459	(ansi2knr.c-url_prefix): Remove.
15460	* lib/.cvsignore: Remove ansi2knr, ansi2knr.*.
15461	* lib/Makefile.am (AUTOMAKE_OPTIONS): Remove.
15462	* src/Makefile.am (AUTOMAKE_OPTIONS): Remove.
15463
154642002-10-15  Paul Eggert  <eggert@twinsun.com>
15465
15466	Stop using the "enum_" trick for K&R-style function definitions;
15467	it confused me, and I was the author!  Instead, assume that people
15468	who want to use K&R C compilers (when using these modules in GCC,
15469	perhaps?) will run ansi2knr.
15470
15471	* lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): Remove.
15472	All uses of "enum_" changed to "enum ".
15473	* lib/ebitset.c (enum_ebitset_find_mode): Likewise.
15474	* lib/lbitset.c (enum_lbitset_find_mode): Likewise.
15475
15476	* lib/abitset.c (abitset_and, abitset_and_cmp, abitset_and_or,
15477	abitset_and_or_cmp, abitset_andn, abitset_andn_cmp,
15478	abitset_andn_or, abitset_andn_or_cmp, abitset_bytes, abitset_copy,
15479	abitset_copy1, abitset_disjoint_p, abitset_empty_p,
15480	abitset_equal_p, abitset_init, abitset_list, abitset_list_reverse,
15481	abitset_not, abitset_ones, abitset_or, abitset_or_and,
15482	abitset_or_and_cmp, abitset_or_cmp, abitset_reset, abitset_set,
15483	abitset_size, abitset_small_list, abitset_subset_p, abitset_test,
15484	abitset_unused_clear, abitset_xor, abitset_xor_cmp, abitset_zero):
15485	Use function prototypes; this removes the need for declaring
15486	static functions simply to provide their prototypes.
15487	* lib/bitset.c (bitset_alloc, bitset_and_or_, bitset_and_or_cmp_,
15488	bitset_andn_or_, bitset_andn_or_cmp_, bitset_bytes, bitset_copy_,
15489	bitset_count_, bitset_create, bitset_dump, bitset_first,
15490	bitset_free, bitset_init, bitset_last, bitset_next,
15491	bitset_obstack_alloc, bitset_obstack_free, bitset_only_set_p,
15492	bitset_op4_cmp, bitset_or_and_, bitset_or_and_cmp_, bitset_prev,
15493	bitset_print, bitset_release_memory, bitset_toggle_,
15494	bitset_type_choose, bitset_type_get, bitset_type_name_get,
15495	debug_bitset): Likewise.
15496	* lib/bitset.h (bitset_set, bitset_reset, bitset_test): Likewise.
15497	* lib/bitset_stats.c (bitset_log_histogram_print,
15498	bitset_percent_histogram_print, bitset_stats_and,
15499	bitset_stats_and_cmp, bitset_stats_and_or,
15500	bitset_stats_and_or_cmp, bitset_stats_andn, bitset_stats_andn_cmp,
15501	bitset_stats_andn_or, bitset_stats_andn_or_cmp, bitset_stats_copy,
15502	bitset_stats_count, bitset_stats_disable, bitset_stats_disjoint_p,
15503	bitset_stats_dump, bitset_stats_empty_p, bitset_stats_enable,
15504	bitset_stats_equal_p, bitset_stats_free, bitset_stats_init,
15505	bitset_stats_list, bitset_stats_list_reverse, bitset_stats_not,
15506	bitset_stats_ones, bitset_stats_or, bitset_stats_or_and,
15507	bitset_stats_or_and_cmp, bitset_stats_or_cmp, bitset_stats_print,
15508	bitset_stats_print_1, bitset_stats_read, bitset_stats_reset,
15509	bitset_stats_set, bitset_stats_size, bitset_stats_subset_p,
15510	bitset_stats_test, bitset_stats_toggle, bitset_stats_type_get,
15511	bitset_stats_write, bitset_stats_xor, bitset_stats_xor_cmp,
15512	bitset_stats_zero): Likewise.
15513	* lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
15514	bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
15515	bitsetv_dump, debug_bitsetv): Likewise.
15516	* lib/ebitset.c (ebitset_and, ebitset_and_cmp, ebitset_andn,
15517	ebitset_andn_cmp, ebitset_bytes, ebitset_copy, ebitset_copy_,
15518	ebitset_copy_cmp, ebitset_disjoint_p, ebitset_elt_add,
15519	ebitset_elt_alloc, ebitset_elt_calloc, ebitset_elt_find,
15520	ebitset_elt_free, ebitset_elt_last, ebitset_elt_remove,
15521	ebitset_elt_zero_p, ebitset_elts_grow, ebitset_empty_p,
15522	ebitset_equal_p, ebitset_free, ebitset_init, ebitset_list,
15523	ebitset_list_reverse, ebitset_not, ebitset_ones, ebitset_op3_cmp,
15524	ebitset_or, ebitset_or_cmp, ebitset_release_memory, ebitset_reset,
15525	ebitset_set, ebitset_size, ebitset_subset_p, ebitset_test,
15526	ebitset_weed, ebitset_xor, ebitset_xor_cmp, ebitset_zero):
15527	Likewise.
15528	* lib/lbitset.c (debug_lbitset, lbitset_and, lbitset_and_cmp,
15529	lbitset_andn, lbitset_andn_cmp, lbitset_bytes, lbitset_copy,
15530	lbitset_copy_cmp, lbitset_disjoint_p, lbitset_elt_alloc,
15531	lbitset_elt_calloc, lbitset_elt_find, lbitset_elt_free,
15532	lbitset_elt_link, lbitset_elt_unlink, lbitset_elt_zero_p,
15533	lbitset_empty_p, lbitset_equal_p, lbitset_free, lbitset_init,
15534	lbitset_list, lbitset_list_reverse, lbitset_not, lbitset_ones,
15535	lbitset_op3_cmp, lbitset_or, lbitset_or_cmp, lbitset_prune,
15536	lbitset_release_memory, lbitset_reset, lbitset_set, lbitset_size,
15537	lbitset_subset_p, lbitset_test, lbitset_weed, lbitset_xor,
15538	lbitset_xor_cmp, lbitset_zero): Likewise.
15539
155402002-10-14  Akim Demaille  <akim@epita.fr>
15541
15542	Version 1.75.
15543
155442002-10-14  Akim Demaille  <akim@epita.fr>
15545
15546	* tests/Makefile.am (maintainer-check-posix): New.
15547
155482002-10-14  Akim Demaille  <akim@epita.fr>
15549
15550	* data/glr.c [YYDEBUG] (YYLEFTMOST_STATE): Initialize the yyloc
15551	member.
15552
155532002-10-14  Akim Demaille  <akim@epita.fr>
15554
15555	* src/tables.c (table_ninf_remap): base -> tab.
15556	Reported by Matt Rosing.
15557
155582002-10-14  Paul Eggert  <eggert@twinsun.com>
15559
15560	* tests/action.at, tests/calc.at, tests/conflicts.at,
15561	tests/cxx-type.at, tests/headers.at, tests/input.at,
15562	tests/regression.at, tests/synclines.at, tests/torture.at:
15563	Say "bison -o foo.c foo.y", not "bison foo.y -o foo.c",
15564	so that the tests still work even if POSIXLY_CORRECT is set.
15565	* doc/bison.texinfo (Rpcalc Compile, Invocation): Likewise.
15566
15567	* data/c.m4 (b4_int_type): Use yysigned_char instead of signed char,
15568	for portability to K&R hosts.  Fix typo: signed char is guaranteed
15569	only to 127, not to 128.
15570	* data/glr.c (yysigned_char): New type.
15571	* data/yacc.c (yysigned_char): Likewise.
15572	* tests/regression.at (Web2c Actions): signed char -> yysigned_char.
15573
155742002-10-13  Paul Eggert  <eggert@twinsun.com>
15575
15576	* data/yacc.c (yyparse): Rewrite to avoid "comparison is always
15577	true due to limited range of data type" warning from GCC.
15578
15579	* data/c.m4 (b4_token_defines): Protect against double-inclusion
15580	by wrapping enum yytokentype's definition inside #ifndef
15581	YYTOKENTYPE.  This undoes a bug I introduced on 2002-10-12.
15582
155832002-10-13  Akim Demaille  <akim@epita.fr>
15584
15585	* data/glr.c (yyglrShiftDefer, yyaddDeferredAction, yydoAction):
15586	Un yy- yyrhs to avoid the name clash with the global YYRHS.
15587
155882002-10-13  Akim Demaille  <akim@epita.fr>
15589
15590	* Makefile.maint: Update from Autoconf 2.54.
15591	* m4/strerror_r.m4 (AC_FUNC_STRERROR_R): Remove, shipped with 2.54.
15592
155932002-10-13  Akim Demaille  <akim@epita.fr>
15594
15595	* src/print.c (print_state): Separate the list of solved conflicts
15596	from the other items.
15597	* tests/conflicts.at (Resolved SR Conflicts): Adjust.
15598
155992002-10-13  Akim Demaille  <akim@epita.fr>
15600
15601	Let nondeterministic skeletons be usable with deterministic
15602	tables.
15603
15604	With the patch, GAWK compiled by GCC without -O2 passes its test
15605	suite using a GLR parser driven by LALR tables.  It fails with -O2
15606	because `struct stat' gives two different answers on my machine:
15607	88 (definition of an auto var) and later 96 (memset on this var).
15608	Hence the stack is badly corrumpted.  The headers inclusion is to
15609	blame: if I move the awk.h inclusion before GLR's system header
15610	inclusion, the two struct stat have the same size.
15611
15612	* src/tables.c (pack_table): Always create conflict_table.
15613	(token_actions): Always create conflict_list.
15614	* data/glr.c (YYFLAG): Remove, unused.
15615
156162002-10-13  Akim Demaille  <akim@epita.fr>
15617
15618	* configure.ac (AC_GNU_SOURCE): Use it instead of hand written code.
15619	(O0FLAGS): New.
15620	(VALGRIND, GXX): New.
15621	* tests/atlocal.in (CFLAGS): Use O0FLAGS.
15622	* tests/bison.in: Run $PREBISON a pre-command.
15623	* tests/Makefile.am (maintainer-check, maintainer-check-valgrind)
15624	(maintainer-check-g++): New.
15625	* Makefile.am (maintainer-check): New.
15626
156272002-10-13  Akim Demaille  <akim@epita.fr>
15628
15629	* data/glr.c: Formatting changes.
15630	Tweak some trace messages to match yacc.c's.
15631
156322002-10-13  Akim Demaille  <akim@epita.fr>
15633
15634	GLR parsers sometimes raise parse errors instead of performing the
15635	default reduction.
15636	Reported by Charles-Henry de Boysson.
15637
15638	* tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Don't
15639	check the length of the traces when %glr.
15640	(_AT_CHECK_CALC_ERROR): Also skip `^Stack' lines, coming from
15641	GLR's traces.
15642	(AT_CHECK_CALC_LALR, AT_CHECK_CALC_GLR): New.
15643	Test GLR parsers.
15644	* data/glr.c (YYLEFTMOST_STATE): Fix its value.
15645	(yyltype): Remove the yy prefix from the member names.
15646	(yytable): Complete its comment.
15647	(yygetLRActions): Map error action number from YYTABLE from
15648	YYTABLE_NINF to 0.
15649	(yyisErrorAction): No longer compare YYACTION to YYPACT_NINF
15650	(which was a bug: it should have been YYTABEL_NINF, and yet it was
15651	not satisfying as we could compare an YYACTION computed from
15652	YYDEFACT to YYTABLE_NINF although they are unrelated): 0 is the
15653	only value for error actions.
15654	(yyreportParseError): In verbose parse error messages, don't issue
15655	`error' in the list of expected tokens.
15656	* data/yacc.c (yyparse) <yybackup>: Rewrite the decoding of the
15657	next action to perform to match glr.c's decoding.
15658	(yytable): Complete its comment.
15659
156602002-10-13  Paul Eggert  <eggert@twinsun.com>
15661
15662	Fix problem reported by Henrik Grubbstroem in
15663	<http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00098.html>:
15664	"nonterm: { $$ = 123; } { $$ = $1; };" was wrongly rejected,
15665	because the Bison parser reads the second action before reducing
15666	the first one.
15667	* src/scan-gram.l (rule_length): New static var.
15668	Use it to keep track of the rule length in the scanner, since
15669	we can't expect the parser to be in lock-step sync with the scanner.
15670	(handle_action_dollar, handle_action_at): Use this var.
15671	* tests/actions.at (Exotic Dollars): Test for the problem.
15672
156732002-10-12  Paul Eggert  <eggert@twinsun.com>
15674
15675	* lib/timevar.c [! IN_GCC && HAVE_SYS_TIME_H]: Include <sys/time.h>.
15676	* m4/timevar.m4 (BISON_PREREQ_TIMEVAR): Check for <sys/time.h>.
15677	Include <sys/time.h> when checking for clock_t and struct tms.
15678	Use same include order as source.
15679	This is for the SunOS 4.1.4 porting bug reported by Peter Klein in
15680	<http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00016.html>.
15681
15682	* lib/timevar.c: Update copyright date and clarify comments.
15683	(get_time) [IN_GCC]: Keep the GCC version for reference.
15684
15685	* lib/timevar.c, lib/timevar.h, lib/timevar.def: Import
15686	GCC version as of today, then merge Bison's changes.
15687	Change "GCC" to "Bison" in copyright notice.  timevar.def's
15688	author is Akim, so change that too.
15689
15690	* src/reader.c (grammar_current_rule_check):
15691	Don't worry about the default action if $$ is untyped.
15692	Prevents bogus warnings reported by Jim Gifford in
15693	<http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00015.html>.
15694
15695	* data/c.m4 (b4_token_enum): Do not define YYTOKENTYPE.
15696	* data/glr.c, data/lalr1.cc, data/yacc.c:
15697	Output token definitions before the first part of user declarations.
15698	Fixes compatibility problem reported by Jim Gifford for kbd in
15699	<http://lists.gnu.org/archive/html/bug-bison/2002-10/msg00014.html>.
15700
157012002-10-11  Paul Eggert  <eggert@twinsun.com>
15702
15703	* data/yacc.c (yyreport_parse_error): Remove, putting its body into...
15704	(yyparse): here.  This undoes some of the 2002-07-25 change.
15705	Compatibility problem reported by Ralf S. Engelschall with
15706	OSSP cfg <http://www.ossp.org/pkg/lib/cfg/>.
15707
157082002-10-11  Akim Demaille  <akim@epita.fr>
15709
15710	* tests/regression.at Characters Escapes): New.
15711	* src/scan-gram.l (SC_ESCAPED_CHARACTER): Accept \' in strings and
15712	characters.
15713	Reported by Jan Nieuwenhuizen.
15714
157152002-10-11  Akim Demaille  <akim@epita.fr>
15716
15717	* po/id.po: New.
15718
157192002-10-10  Paul Eggert  <eggert@twinsun.com>
15720
15721	Portability fixes for bitsets; this also avoids several GCC
15722	warnings.
15723
15724	* lib/abitset.c: Include <stddef.h>, for offsetof.
15725	* lib/lbitset.c: Likewise.
15726
15727	* lib/abitset.c (abitset_bytes): Return a size that is aligned
15728	properly for vectors of objects.  Do not assume that adding a
15729	header size to a multiple of a word size yields a value that is
15730	properly aligned for the whole union.
15731	* lib/bitsetv.c (bitsetv_alloc): Likewise.
15732
15733	* lib/bitset_stats.c (bitset_stats_bytes): Adjust to new,
15734	unique names for structures.
15735	* lib/ebitset.c (ebitset_bytes): Likewise.
15736	* lib/lbitset.c (lbitset_bytes): Likewise.
15737
15738	* lib/abitset.c (abitset_ones, abitset_zero, abitset_empty_p,
15739	abitset_copy1, abitset_not, abitset_equal_p, abitset_subset_p,
15740	abitset_disjoint_p, abitset_and, abitset_and_cmp, abitset_andn,
15741	abitset_andn_cmp, abitset_or, abitset_or_cmp, abitset_xor,
15742	abitset_xor_cmp, abitset_and_or, abitset_and_or_cmp,
15743	abitset_andn_or, abitset_andn_or_cmp, abitset_or_and,
15744	abitset_or_and_cmp, abitset_copy): Supply prototype decls,
15745	to improve the type-checking that GCC can do.
15746	* lib/bitset.c (bitset_op4_cmp): Likewise.
15747	* lib/bitset_stats.c (bitset_stats_count,
15748	bitset_stats_empty_p, bitset_stats_ones, bitset_stats_zero,
15749	bitset_stats_copy, bitset_stats_disjoint_p,
15750	bitset_stats_equal_p, bitset_stats_not, bitset_stats_subset_p,
15751	bitset_stats_and, bitset_stats_and_cmp, bitset_stats_andn,
15752	bitset_stats_andn_cmp, bitset_stats_or, bitset_stats_or_cmp,
15753	bitset_stats_xor, bitset_stats_xor_cmp, bitset_stats_and_or,
15754	bitset_stats_and_or_cmp, bitset_stats_andn_or,
15755	bitset_stats_andn_or_cmp, bitset_stats_or_and,
15756	bitset_stats_or_and_cmp): Likewise.
15757	* lib/lbitset.c (lbitset_and, lbitset_and_cmp, lbitset_andn,
15758	lbitset_andn_cmp, lbitset_or, lbitset_or_cmp, lbitset_xor,
15759	lbitset_xor_cmp, lbitset_empty_p, lbitset_ones, lbitset_not,
15760	lbitset_subset_p, lbitset_disjoint_p, debug_lbitset): Likewise.
15761
15762	* lib/abitset.h: Include bitset.h, not bbitset.h.
15763	* lib/ebitset.h: Likewise.
15764	* lib/lbitset.h: Likewise.
15765
15766	* lib/bbitset.h: (enum_bitset_ops, enum_bitset_type): New types.
15767	All instances of parameters of type enum bitset_opts are now of
15768	type enum_bitset_opts, to conform to the C Standard, and similarly
15769	for enum_bitset_type.
15770	* lib/ebitset.c (enum_ebitset_find_mode): Likewise.
15771	* lib/lbitset.c (enum_lbitset_find_mode): Likewise.
15772
15773	Do not use "struct bitset_struct" to mean different things in
15774	different modules.  Not only is this confusing, it violates
15775	the C Standard, which requires that structure types in different
15776	modules must be compatible if one is to be passed to the other.
15777	* lib/bbitset.h (bitset): Now points to a union, not to a struct.
15778	All instances of "struct bitset_struct *" replaced with "bitset".
15779	* lib/bitset.h (struct bitset_struct): Remove, replacing with....
15780	(union bitset_union, struct abitset_struct, struct ebitset_struct,
15781	struct lbitset_struct, struct bitset_stats_struct): New types.
15782	All uses of struct bitset_struct changed to union bitset_union,
15783	etc.
15784	* lib/abitset.c (struct abitset_struct, abitset,
15785	struct bitset_struct): Remove.
15786	* lib/bitset_stats.c (struct bitset_stats_struct, bitset_stats,
15787	struct bitset_struct): Remove.
15788	* lib/ebitset.c (struct ebitset_struct, ebitset, struct
15789	bitset_struct): Remove.
15790	* lib/lbitset.c (struct lbitset_struct, lbitset, bitset_struct):
15791	Likewise.
15792
15793	Do not call a function of type T using a call that assumes the
15794	function is of a different type U.  Standard C requires that a
15795	function must be called with a type that is compatible with its
15796	definition.
15797	* lib/bbitset.h (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
15798	New decls.
15799	* lib/bitset.c (bitset_and_or_, bitset_andn_or_, bitset_or_and_):
15800	New functions.
15801	* lib/ebitset.c (PFV): Remove.
15802	* lib/lbitset.c (PFV): Likewise.
15803	* lib/ebitset.c (ebitset_and, ebitset_andn, ebitset_or,
15804	ebitset_xor, ebitset_copy, ebitset_ones, ebitset_empty_p): New
15805	decls.
15806	(ebitset_and, ebitset_andn, ebitset_or, ebitset_xor): New functions.
15807	(ebitset_vtable): Use them.
15808	* lib/lbitset.c (lbitset_and, lbitset_andn, lbitset_or,
15809	lbitset_xor): New functions.
15810	(lbitset_vtable): Use them.
15811
15812	* lib/bitset.h (bitset_next, bitset_prev, bitset_only_set_p):
15813	Declare.
15814
15815	* lib/bitsetv.c (bitsetv_alloc): Add a cast to (void *) to avoid a
15816	GCC warning.
15817	* lib/lbitset.c (LBITSET_CURRENT1): Likewise.
15818	Use offsetof, for simplicity.
15819
158202002-10-06  Paul Eggert  <eggert@twinsun.com>
15821
15822	* lib/bitset.h (bitset_reset): Do not assume that bitset_word is
15823	the same width as int.  This reapplies a hunk of the 2002-08-12 patch
15824	<http://lists.gnu.org/archive/html/bison-patches/2002-08/msg00007.html>,
15825	which was inadvertently undone by the 2002-09-30 patch.
15826	* lib/lbitset.c (debug_lbitset): Do not assume that bitset_word is
15827	the same width as int.
15828
158292002-10-04  Paul Eggert  <eggert@twinsun.com>
15830
15831	Version 1.50.
15832
15833	* configure.ac (AC_INIT), NEWS: Increment version number.
15834
15835	* doc/bison.texinfo: Minor spelling, grammar, and white space
15836	fixes.
15837	(Symbols): Mention that any negative value returned from yylex
15838	signifies end-of-input.  Warn about negative chars.  Mention
15839	the portable Standard C character set.
15840
15841	The GNU coding standard says CFLAGS and YFLAGS are reserved
15842	for the installer to set.
15843	* lib/Makefile.am (AM_CFLAGS): Renamed from CFLAGS.
15844	* src/Makefile.am (AM_CFLAGS): Likewise.
15845	(AM_YFLAGS): Renamed from YFLAGS.
15846
15847	Fix some MAX and MIN problems.
15848	* src/gram.h (ITEM_NUMBER_MIN): MIN_MAX -> INT_MIN.
15849	* src/lalr.h (GOTO_NUMBER_MAX): INT_MAX -> SHRT_MAX.
15850	* src/symtab.h (SYMBOL_NUMBER_MAX): New macro.
15851	* src/reader.c (reader): Use it.
15852
15853	* tests/regression.at (Braces parsing): Use grep, not fgrep, as
15854	POSIX 1003.1-2001 has removed fgrep.
15855
158562002-10-04  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>
15857
15858	* lib/bbitset.h (BITSET_WINDEX_MAX): Redefine so that it cannot be
15859	interpreted as signed.
15860	* lib/ebitset.c (ebitset_list): Fix bug.
15861
158622002-10-01  Paul Eggert  <eggert@twinsun.com>
15863
15864	More fixes for 64-bit hosts and large bitsets.
15865
15866	* lib/abitset.c (struct abitset_struct.n_bits, abitset_small_list,
15867	abitset_size, abitset_list, abitset_list_reverse, abitset_list):
15868	Use bitset_bindex, not int or unsigned int or size_t, to count bits.
15869	* lib/bbitset.h (struct bitset_vtable.size, struct bitset_vtable.count,
15870	struct bitset_vtable.list, struct bitset_vtable.list_reverse,
15871	bitset_count_, bitset_next, bitset_prev, bitset_first, bitset_last,
15872	bitset_count_): Likewise.
15873	* lib/bitset.h (bitset_iterator.num, bitset_iterator.i,
15874	bitset_first, bitset_last): Likewise.
15875	* lib/bitset_stats.c (bitset_stats_size, bitset_stats_list,
15876	bitset_stats_list_reverse, bitset_stats_size,
15877	bitset_stats_count, bitset_stats_list, bitset_stat_list_reverse):
15878	Likewise.
15879	* lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
15880	* lib/bitsetv.c (bitsetv_alloc, bitsetv_create, bitsetv_free,
15881	bitsetv_zero, bitsetv_ones, bitsetv_transitive_closure,
15882	bitsetv_reflexive_transitive_closure): Likewise.
15883	* lib/bitsetv.h (bitsetv_alloc, bitsetv_create): Likewise.
15884	* lib/ebitset.c (ebitset_size, ebitset_list, ebitset_list_reverse):
15885	Likewise.
15886	* lib/lbitset.c (lbitset_size, lbitset_list, lbitset_list_merge):
15887	Likewise.
15888
15889	* lib/abitset.c (abitset_ones, abitset_zero, abitset_bytes):
15890	Use size_t, not unsigned int, to count bytes.
15891	* lib/abitset.h (abitset_bytes): Likewise.
15892	* lib/bitset.c (bitset_bytes, bitset_alloc, bitset_obstack_alloc):
15893	Likewise.
15894	* lib/bitset.h (bitset_bytes): Likewise.
15895	* lib/bitset_stats.c (bitset_stats_bytes, bitset_stats_init): Likewise.
15896	* lib/bitset_stats.h (bitset_stats_bytes): Likewise.
15897	* lib/bitsetv.c (bitsetv_alloc): Likewise.
15898	* lib/ebitset.c (ebitset_bytes): Likewise.
15899	* lib/ebitset.h (ebitset_bytes): Likewise.
15900	* lib/lbitset.c (lbitset_bytes): Likewise.
15901	* lib/lbitset.h (lbitset_bytes): Likewise.
15902
15903	* lib/abitset.c (abitset_empty_p, abitset_not, abitset_equal_p,
15904	abitset_subset_p, abitset_disjoint_p, abitset_and,
15905	abitset_and_cmp, abitset_andn, abitset_andn_cmp, abitset_or,
15906	abitset_or_cmp, abitset_xor, abitset_xor_cmp, abitset_and_or,
15907	abitset_and_or_cmp, abitset_andn_or, abitset_andn_or_cmp,
15908	abitset_or_and, abitset_or_and_cmp):
15909	Use bitset_windex instead of unsigned int.
15910	* lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
15911	* lib/ebitset.c (struct ebitset_struct.size, ebitset_elts_grow,
15912	ebitset_elt_add, ebitset_elt_remove, ebitset_weed,
15913	ebitset_elt_find, ebitset_list_reverse, ebitset_list, ebitset_init):
15914	Likewise.
15915	* lib/lbitset.c (lbitset_ones, lbitset_not): Likewise.
15916
15917	* lib/bitset.c (bitset_print):
15918	Use proper printf formats for widths of integer types.
15919	* lib/bitset_stats.c (bitset_percent_histogram_print,
15920	bitset_log_histogram_print, bitset_stats_print_1): Likewise.
15921	* lib/bitsetv-print.c (bitsetv_matrix_dump): Likewise.
15922	* lib/bitsetv.c (bitsetv_dump, debug_bitsetv): Likewise.
15923	* lib/lbitset.c (lbitset_bytes): Likewise.
15924
15925	* lib/bbitset.h (BITSET_BINDEX_MAX, BITSET_WINDEX_MAX,
15926	BITSET_SIZE_MAX): New macros.
15927	(BITSET_INDEX_MAX): Remove.  It wasn't right, since it assumed that
15928	sizeof (bitset_word) == sizeof (bitset_windex).  All uses changed
15929	to BITSET_WINDEX_MAX.
15930
15931	* lib/bitset.c (bitset_next, bitset_prev, bitset_first,
15932	bitset_last): Return BITSET_BINDEX_MAX (not -1) for no value,
15933	since we now return the bitset_bindex type (not int).
15934
15935	* lib/bitsetv.c (bitsetv_alloc): Check for arithmetic overflow
15936	when computing sizes.
15937	* lib/ebitset.c (ebitset_elts_grow): Likewise.
15938
15939	* lib/lbitset.c (lbitset_elt_find): Simplify windex calculation
15940	and avoid cast to unsigned.
15941
159422002-09-30  Akim Demaille  <akim@epita.fr>
15943
15944	* lib/abitset.c, lib/bbitset.h, lib/bitset.c, lib/bitset.h,
15945	* lib/bitset_stats.c, lib/bitsetv.c, lib/ebitset.c, lib/lbitset.c:
15946	Updates from Michael Hayes.
15947
159482002-09-30  Art Haas  <ahaas@neosoft.com>
15949
15950	* configure.ac: Update AC_OUTPUT and AM_CONFIG_HEADER
15951	invocations.
15952	* tests/cxx-type.at (declarator): Don't rely on NDEBUG being not
15953	defined.
15954
159552002-09-27  Akim Demaille  <akim@epita.fr>
15956
15957	Version 1.49c.
15958
159592002-09-27  Akim Demaille  <akim@epita.fr>
15960
15961	* configure.ac (AM_INIT_AUTOMAKE): We _need_ 1.7.
15962	(Because of AC_LIBSOURCE).
15963
159642002-09-27  Akim Demaille  <akim@epita.fr>
15965
15966	Playing with Autoscan.
15967
15968	* configure.ac: Remove the old LIBOBJ tweaks.
15969	(AC_REPLACE_FUNCS): Add strrchr and strtol.
15970	* lib/strrchr.c: New.
15971	* lib/strtol.c: New, from the Coreutils 4.5.1.
15972
159732002-09-27  Akim Demaille  <akim@epita.fr>
15974
15975	Playing with Autoscan.
15976
15977	* m4/prereq.m4 (jm_PREREQ_ARGMATCH, jm_FUNC_ARGMATCH): New.
15978	* lib/Makefile.am (libbison_a_SOURCES): No longer include
15979	argmatch.c and argmatch.h, since they are AC_LIBSOURCE'd.
15980	* lib/strcasecmp.c, lib/strncasecmp.c, lib/memcmp.c: New, from the
15981	Coreutils 4.5.1.
15982
159832002-09-24  Akim Demaille  <akim@epita.fr>
15984
15985	* doc/bison.texinfo (Stack Overflow): xref to Recursion.
15986	(Frequently Asked Questions, Parser Stack Overflow): New.
15987
159882002-09-13  Akim Demaille  <akim@epita.fr>
15989
15990	Playing with autoscan.
15991
15992	* src/reader.c (get_merge_function): Use xstrdup, not strdup.
15993	* src/files.c (skeleton_find): Remove, unused.
15994	* m4/memcmp.m4: New, from the Coreutils 4.5.1.
15995	* m4/prereq.m4 (jm_PREREQ_QUOTEARG): Run jm_FUNC_MEMCMP.
15996
159972002-09-13  Akim Demaille  <akim@epita.fr>
15998
15999	* configure.ac (AM_INIT_AUTOMAKE): Require Automake 1.6.3.
16000	* Makefile.am (AUTOMAKE_OPTIONS): Don't.
16001
160022002-09-13  Akim Demaille  <akim@epita.fr>
16003
16004	* configure.ac: Require 2.54.
16005	s/jm_FUNC_MALLOC/AC_FUNC_MALLOC/.
16006	s/jm_FUNC_REALLOC/AC_FUNC_REALLOC/.
16007	* m4/c-bs-a.m4, m4/malloc.m4, m4/mbstate_t.m4, m4/realloc.m4:
16008	Remove, provided by Autoconf macros.
16009
160102002-09-12  Akim Demaille  <akim@epita.fr>
16011
16012	* m4/prereq.m4: Update, from Coreutils 4.5.1.
16013
160142002-09-12  Akim Demaille  <akim@epita.fr>
16015
16016	* m4/prereq.m4: Update, from Fileutils 4.1.5.
16017	* configure.ac (jm_PREREQ_TEMPNAME): Invoke it.
16018	Reported by Martin Mokrejs.
16019
160202002-09-10  Akim Demaille  <akim@epita.fr>
16021
16022	* src/parse-gram.y: Associate a human readable string to each
16023	token type.
16024	* tests/regression.at (Invalid inputs): Adjust.
16025
160262002-09-10  Gary V. Vaughan  <gary@gnu.org>
16027
16028	* tests/Makefile.am ($(srcdir)/package.m4): Bison now ships
16029	with an Autoconf-2.5x style configure.ac.
16030
160312002-09-06  Paul Eggert  <eggert@twinsun.com>
16032
16033	* doc/bison.texinfo (Conditions): Make explicit that the GPL
16034	exception applies only to yacc.c.  This is a modification of a
16035	patch originally suggested by Akim Demaille.
16036
160372002-09-06  Akim Demaille  <akim@epita.fr>
16038
16039	* data/c.m4 (b4_copyright): Move the GPL exception comment from
16040	here to...
16041	* data/yacc.c: here.
16042
16043	* data/lalr1.cc (struct yyltype): Don't define it, since we use
16044	LocationType.
16045	(b4_ltype): Default to yy::Location from location.hh.
16046
160472002-09-04  Jim Meyering  <jim@meyering.net>
16048
16049	* data/yacc.c: Guard the declaration of yytoknum also with
16050	`#ifdef YYPRINT', so it is declared only when used.
16051
160522002-09-04  Akim Demaille  <akim@epita.fr>
16053
16054	* configure.in: Rename as...
16055	* configure.ac: this.
16056	Bump to 1.49c.
16057
160582002-09-04  Akim Demaille  <akim@epita.fr>
16059
16060	* src/assoc.c, src/closure.c, src/gram.c, src/injections.c,
16061	* src/lalr.c, src/LR0.c, src/relation.c, src/tables.c: Don't
16062	translate maintainer only messages.
16063
160642002-08-12  Paul Eggert  <eggert@twinsun.com>
16065
16066	Version 1.49b.
16067
16068	* Makefile.am (SUBDIRS): Remove intl.
16069	(DISTCLEANFILES): Remove.
16070	* NEWS: Mention that GNU M4 is now required.  Clarify what is
16071	meant by "larger grammars".  Mention the pt_BR translation.
16072	* configure.in (AC_CHECK_DECLS): Add getenv, getopt.
16073	(AM_GNU_GETTEXT_VERSION): New macro, replacing GETTEXT_VERSION var.
16074	Bump version from 0.11.2 to 0.11.5.
16075	(BISON_PREREQ_STAGE): Remove.
16076	(AM_GNU_GETTEXT): Use external gettext.
16077	(AC_OUTPUT): Remove intl/Makefile.
16078
16079	* config/depcomp, config/install-sh: Sync with Automake 1.6.3.
16080
16081	* data/glr.c: Include string.h, for strlen.
16082	(yyreportParseError): Use size_t for yysize.
16083	(yy_yypstack): No longer nested inside yypstates, as nested
16084	functions are not portable.  Do not assume size_t is the
16085	same width as int.
16086	(yypstates): Do not assume that ptrdiff_t is the same width
16087	as int, and similarly for yyposn and YYINDEX.
16088
16089	* data/yacc.c: Fix comment about `$$ = $1': it can copy garbage.
16090
16091	* lib/Makefile.am (INCLUDES): Do not include from the intl
16092	directory, which has been removed.
16093	* src/Makefile.am (INCLUDES): Likewise.
16094
16095	* lib/Makefile.am (libbison_a_SOURCES): Add unlocked-io.h.
16096	(bitsets_sources, additional_bitsets_sources, timevars_sources):
16097	New vars.
16098
16099	* lib/Makefile.am (libbison_a_SOURCES): Avoid +=, a GNU make extension.
16100	* tests/Makefile.am (EXTRA_DIST): Likewise.
16101
16102	* lib/abitset.c (abitset_reverse_list, ebitset_reverse_list):
16103	Do not assume that bitset_windex is the same width as unsigned.
16104
16105	* lib/abitset.c (abitset_unused_clear): Do not assume that
16106	bitset_word is the same width as int.
16107	* lib/bbitset.h (BITSET_INDEX_MAX, BITSET_MSB): Likewise.
16108	* lib/bitset.h (bitset_set, bitset_reset): Likewise.
16109	* lib/bitset_stats.c (bitset_stats_set, bitset_stats_reset): Likewise.
16110	* lib/ebitset.c (ebitset_set, ebitset_reset): Likewise.
16111	* lib/lbitset.c (lbitset_set, lbitset_reset): Likewise.
16112
16113	* lib/abitset.c (abitset_op1): Use -1, not ~0, as memset arg (for
16114	portability to one's complement hosts!).
16115	* lib/ebitset.c (ebitset_op1): Likewise.
16116	* lib/lbitset.c (lbitset_op1): Likewise.
16117
16118	* lib/argmatch.c, lib/quotearg.c, quotearg.h: Sync with GNU tar.
16119	* lib/argmatch.h, lib/basename.c, lib/dirname.c, lib/dirname.h,
16120	lib/hash.c, lib/hash.h, lib/strnlen.c, lib/xmalloc.c:
16121	Sync with fileutils.
16122	* lib/error.c, lib/getopt.c, lib/getopt.h, lib/getopt1.c,
16123	lib/gettext.h: Sync with diffutils.
16124
16125	* lib/memrchr.c, lib/mkstemp.c, lib/strchr.c, lib/strnlen.c,
16126	lib/strspn.c, lib/tempname.c: Use GPL, not LGPL.
16127
16128	* lib/obstack.c, lib/obstack.h: Sync with fileutils, except use
16129	PROTOTYPES to check for prototypes, and "defined __STDC__" to
16130	check for void *.
16131
16132	* lib/bbitset.h (BITSET_WORD_BITS): Now of type unsigned, not
16133	size_t; the old version tried to do this but casted improperly.
16134	(bitset_bindex, bitset_windex): Now size_t, not unsigned long.
16135	(bitset_test): Now returns int, not unsigned long.
16136
16137	* lib/bitset_stats.c: Include "gettext.h".
16138	(_): New macro.
16139	(bitset_stats_set, bitset_stats_reset, bitset_stats_test): Don't
16140	name locals "index", as it generates unnecessary warnings on some
16141	hosts that have an "index" function.
16142
16143	* lib/bitset_stats.c (bitset_stats_print_1, bitset_stats_print,
16144	bitset_stats_read, bitset_stats_write): Wrap strings in _() if
16145	they need translation.
16146	* src/LR0.c (state_list_append, new_itemsets, get_state,
16147	append_states, generate_states): Likewise.
16148	* src/assoc.c (assoc_to_string): Likewise.
16149	* src/closure.c (print_closure, set_firsts, closure): Likewise.
16150	* src/gram.c (grammar_dump): Likewise.
16151	* src/injections.c (injections_compute): Likewise.
16152	* src/lalr.c (lookaheads_print): Likewise.
16153	* src/relation.c (relation_transpose): Likewise.
16154	* src/scan-gram.l: Likewise.
16155	* src/tables.c (table_grow, pack_vector): Likewise.
16156
16157	* m4/Makefile.am (EXTRA_DIST): Remove codeset.m4,
16158	glibc21.m4, isc-posix.m4 lcmessage.m4, stage.m4.
16159	* m4/malloc.m4, m4/realloc.m4: Sync with diffutils.
16160	* m4/mbstate_t.m4: Sync with fileutils.
16161	* m4/prereq.m4 (jm_PREREQ_QUOTEARG): AC_MBSTATE_T -> AC_TYPE_MBSTATE_T.
16162
16163	* po/LINGUAS: Add pt_BR.
16164	* po/POTFILES.in: Add src/assoc.c, src/closure.c, src/gram.c,
16165	src/main.c, src/relation.c, src/state.c, lib/bitset_stats.c,
16166	lib/timevar.c.
16167	Use src/parse-gram.y instead of src/parse-gram.c, as the gettext
16168	manual recommends.
16169	Similarly, use src/scan-gram.l instead of src/scan-gram.c.
16170
16171	* src/complain.c (strerror_r): Remove decl; not needed.
16172	(strerror): Use same pattern as ../lib/error.c.
16173
16174	* src/files.c, src/files.h (compute_header_macro): Remove; unused.
16175
16176	* src/gram.c (grammar_dump): Do not assume ptrdiff_t fits in int.
16177
16178	* src/main.c (main): Cast result of bindtextdomain and textdomain
16179	to void, to avoid a GCC warning when --disable-nls is in effect.
16180
16181	* src/scan-gram.l: Use strings rather than escapes when possible,
16182	to minimize the number of warnings from xgettext.
16183	(handle_action_dollar, handle_action_at): Don't use isdigit,
16184	as it mishandles negative chars and it may not work as expected
16185	outside the C locale.
16186
16187	* src/symtab.c (symbol_get): Don't cast LHS of an assignment;
16188	this is a GCC extension and is not portable to other compilers.
16189
16190	* src/system.h (alloca): Use same pattern as ../lib/error.c.
16191	Do not include <ctype.h>; no longer needed.
16192	Do not include <malloc.h>; no longer needed (and generates
16193	warnings on OpenBSD 3.0).
16194
16195	* tests/cxx-type.at (yylex): Do not pass signed char to isupper;
16196	it's not portable.
16197
16198	* tests/regression.at: Do not use 'cc -c input.c -o input';
16199	Sun C rejects this.  Instead, use 'cc -c input.c -o input.o'.
16200
16201	* tests/synclines.at (AC_SYNCLINES_COMPILE): Accept any nonzero
16202	exit status as failure, not just exit status 1.  Sun C exits
16203	with status 2 sometimes.
16204
16205	* tests/torture.at (AT_INCREASE_DATA_SIZE): New macro.
16206	Use it for the two large tests.
16207
162082002-08-02  Akim Demaille  <akim@epita.fr>
16209
16210	* src/conflicts.c (conflicts_output): Don't output rules never
16211	reduced here, since anyway that computation doesn't work.
16212	* src/gram.h, src/gram.h (rule_filter_t, rule_useful_p)
16213	(rule_useless_p, rule_never_reduced_p): New.
16214	(grammar_rules_partial_print): Use a filter instead of a range.
16215	Display the title only if needed.
16216	(grammar_rules_print): Adjust.
16217	(grammar_rules_never_reduced_report): New.
16218	* src/tables.c (action_row): Move the computation of rules never
16219	reduced to...
16220	(token_actions): here.
16221	* src/main.c (main): Make the parser before making the report, so
16222	that rules never reduced are computed.
16223	Call grammar_rules_never_reduced_report.
16224	* src/print.c (print_results): Report rules never reduced.
16225	* tests/conflicts.at, tests/reduce.at: Adjust.
16226
162272002-08-01  Akim Demaille  <akim@epita.fr>
16228
16229	Instead of attaching lookaheads and duplicating the rules being
16230	reduced by a state, attach the lookaheads to the reductions.
16231
16232	* src/state.h (state_t): Remove the `lookaheads',
16233	`lookaheads_rule' member.
16234	(reductions_t): Add a `lookaheads' member.
16235	Use a regular array for the `rules'.
16236	* src/state.c (reductions_new): Initialize the lookaheads member
16237	to 0.
16238	(state_rule_lookaheads_print): Adjust.
16239	* src/state.h, src/state.c (state_reductions_find): New.
16240	* src/conflicts.c (resolve_sr_conflict, set_conflicts)
16241	(count_rr_conflicts): Adjust.
16242	* src/lalr.c (LArule): Remove.
16243	(add_lookback_edge): Adjust.
16244	(state_lookaheads_count): New.
16245	(states_lookaheads_initialize): Merge into...
16246	(initialize_LA): this.
16247	(lalr_free): Adjust.
16248	* src/main.c (main): Don't free nullable and derives too early: it
16249	is used by --verbose.
16250	* src/print.c, src/print_graph.c, src/tables.c: Adjust.
16251
162522002-08-01  Akim Demaille  <akim@epita.fr>
16253
16254	* src/derives.h, src/derives.c (derives): A `rule_t***' instead of
16255	`rule_number_t**'.
16256	(set_derives, free_derives): Rename as...
16257	(derives_compute, derives_free): this.
16258	Adjust all dependencies.
16259	* src/nullable.c (set_nullable, free_nullable): Rename as...
16260	(nullable_compute, nullable_free): these.
16261	(rule_list_t): Store rule_t *, not rule_number_t.
16262	* src/state.c (state_rule_lookaheads_print): Directly compare rule
16263	pointers, instead of their numbers.
16264	* src/main.c (main): Call nullable_free, and derives_free earlier,
16265	as they were lo longer used.
16266
162672002-08-01  Akim Demaille  <akim@epita.fr>
16268
16269	* lib/timevar.c (get_time): Include children time.
16270	* src/lalr.h (LA, LArule): Don't export them: used with the
16271	state_t.
16272	* src/lalr.c (LA, LArule): Static.
16273	* src/lalr.h, src/lalr.c (lalr_free): New.
16274	* src/main.c (main): Call it.
16275	* src/tables.c (pack_vector): Check whether loc is >= to the
16276	table_size, not >.
16277	(pack_tables): Don't free froms, tos, conflict_tos, and pos...
16278	(tables_generate): do it, since that's also it which allocates
16279	them.
16280	Don't free LA and LArule, main does.
16281
162822002-07-31  Akim Demaille  <akim@epita.fr>
16283
16284	Separate parser tables computation and output.
16285
16286	* src/output.c (nvectors, base_t, base, base_ninf, conflict_table)
16287	(conflict_list, conflict_list_cnt, table, check, table_ninf)
16288	(yydefgoto, yydefact, high): Move to...
16289	* src/tables.h, src/tables.c: here.
16290	* src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
16291	(VECTOR_NUMBER_MIN, state_number_to_vector_number)
16292	(symbol_number_to_vector_number, nvectors, BASE_MAX, BASE_MIN)
16293	(froms, tos, conflict_tos, tally, width, action_t, ACTION_MAX)
16294	(ACTION_MIN, actrow, order, nentries, pos, conflrow)
16295	(conflict_list_free, table_size, lowzero, table_grow, conflict_row)
16296	(action_row, save_row, token_actions, save_column, default_goto)
16297	(goto_actions, sort_actions, matching_state, pack_vector)
16298	(table_ninf_remap, pack_table, prepare_actions): Move to...
16299	* src/tables.c: here.
16300	* src/tables.h, src/tables.c(tables_generate, tables_free): New.
16301	* src/output.c (token_actions, output_base, output_conflicts)
16302	(output_check): Merge into...
16303	(prepare_actions): this.
16304	(actions_output): Rename as...
16305	(user_actions_output): this.
16306	* src/main.c (main): Call tables_generate and tables_free.
16307
163082002-07-31  Akim Demaille  <akim@epita.fr>
16309
16310	Steal GCC's --time-report support.
16311
16312	* lib/timevar.c, lib/timevar.h, lib/timevar.def: New,
16313	stolen/adjusted from GCC.
16314	* m4/stage.m4: Remove time related checks.
16315	* m4/timevar.m4: New.
16316	* configure.in: Adjust.
16317	* src/system.h: Adjust to using timevar.h.
16318	* src/getargs.h, src/getargs.c: Support trace_time for
16319	--trace=time.
16320	* src/main.c (stage): Remove.
16321	(main): Replace `stage' invocations with timevar calls.
16322	* src/output.c: Insert pertinent timevar calls.
16323
163242002-07-31  Akim Demaille  <akim@epita.fr>
16325
16326	Let --trace have arguments.
16327
16328	* src/getargs.h (enum trace_e): New.
16329	* src/getargs.c (trace_args, trace_types, trace_argmatch): New.
16330	(long_options, short_options): --trace/-T takes an optional
16331	argument.
16332	Change all the uses of trace_flag to reflect the new flags.
16333	* tests/sets.at (Firsts, Nullable, Broken Closure): Use --trace=sets.
16334
16335	Strengthen `stage' portability.
16336
16337	* m4/stage.m4 (BISON_PREREQ_STAGE): New.
16338	* configure.in: Use it.
16339	Don't check for malloc.h and sys/times.h.
16340	* src/system.h: Include them when appropriate.
16341	* src/main.c (stage): Compile only when mallinfo, struct mallinfo,
16342	times and struct tms are available.
16343
163442002-07-30  Akim Demaille  <akim@epita.fr>
16345
16346	In verbose parse error message, don't report `error' as an
16347	expected token.
16348	* tests/actions.at (Printers and Destructors): Adjust.
16349	* tests/calc.at (Calculator $1): Adjust.
16350	* data/yacc.c, data/glr.c, data/lalr1.c: When making the verbose
16351	error message, do not report the parser accepts the error token in
16352	that state.
16353
163542002-07-30  Akim Demaille  <akim@epita.fr>
16355
16356	Normalize conflict related messages.
16357
16358	* src/complain.h, src/complain.c (warn, complain): New.
16359	* src/conflicts.c (conflicts_print): Use them.
16360	(conflict_report_yacc): New, extracted from...
16361	(conflicts_print): here.
16362	* tests/conflicts.at, tests/existing.at: Adjust.
16363
163642002-07-30  Akim Demaille  <akim@epita.fr>
16365
16366	Report rules which are never reduced by the parser: those hidden
16367	by conflicts.
16368
16369	* src/LR0.c (save_reductions): Don't make the final state too
16370	different: save its reduction (accept) instead of having a state
16371	without any action (no shift or goto, no reduce).
16372	Note: the final state is now a ``regular'' state, i.e., the
16373	parsers now contain `reduce 0' as default reduction.
16374	Nevertheless, since they decide to `accept' when yystate =
16375	final_state, they still will not reduce rule 0.
16376	* src/print.c (print_actions, print_reduction): Adjust.
16377	* src/output.c (action_row): Track reduced rules.
16378	(token_actions): Report rules never reduced.
16379	* tests/conflicts.at, tests/regression.at: Adjust.
16380
163812002-07-30  Akim Demaille  <akim@epita.fr>
16382
16383	`stage' was accidentally included in a previous patch.
16384	Initiate its autoconfiscation.
16385
16386	* configure.in: Look for malloc.h and sys/times.h.
16387	* src/main.c (stage): Adjust.
16388	Report only when trace_flag.
16389
163902002-07-29  Akim Demaille  <akim@epita.fr>
16391
16392	* src/state.h, src/state.c (transitions_t): Holds state_t*'s, not
16393	state_number_t.
16394	(errs_t): symbol_t*, not symbol_number_t.
16395	(reductions_t): rule_t*, not rule_number_t.
16396	(FOR_EACH_SHIFT): New.
16397	* src/LR0.c, src/conflicts.c, src/lalr.c, src/output.c
16398	* src/print.c, src/print_graph.c: Adjust.
16399
164002002-07-29  Akim Demaille  <akim@epita.fr>
16401
16402	Use $accept and $end, as BYacc and BTYacc do, instead of $axiom and $.
16403
16404	* src/symtab.h, src/symtab.c (eoftoken, axiom): Rename as...
16405	(endtoken, accept): these.
16406	* src/reader.c (reader): Set endtoken's default tag to "$end".
16407	Set undeftoken's tag to "$undefined" instead of "$undefined.".
16408	* doc/bison.texinfo (Table of Symbols): Mention $accept and $end.
16409	Adjust.
16410
164112002-07-29  Akim Demaille  <akim@epita.fr>
16412
16413	* src/reduce.c (reduce_grammar): When the language is empty,
16414	complain about the start symbol, not the axiom.
16415	Use its location.
16416	* tests/reduce.at (Empty Language): New.
16417
164182002-07-26  Akim Demaille  <akim@epita.fr>
16419
16420	* src/reader.h, src/reader.c (gram_error): ... can't get
16421	yycontrol without making too strong assumptions on the parser
16422	itself.
16423	* src/output.c (prepare_tokens): Use the real 0th value of
16424	token_translations instead of `0'.
16425	* src/parse-gram.y (yyerror): Don't rely on yycontrol being
16426	visible here.
16427	* data/yacc.c (yyreport_parse_error): Rename yylocation as yylloc
16428	for the time being: %locations ought to provide it to yyerror.
16429
164302002-07-25  Akim Demaille  <akim@epita.fr>
16431
16432	* src/output.c (prepare_tokens): Go up to ntokens, not ntokens + 1.
16433	* doc/bison.texinfo (Decl Summary): s/$illegal/$undefined./.
16434	* tests/regression.at (Web2c Actions): Adjust.
16435
164362002-07-25  Akim Demaille  <akim@epita.fr>
16437
16438	Stop storing rules from 1 to nrules + 1.
16439
16440	* src/LR0.c, src/closure.c, src/derives.c, src/gram.c, src/lalr.c
16441	* src/nullable.c, src/output.c, src/print.c, src/reader.c
16442	* src/reduce.c: Allocate and free from &rules[0], not &rules[1].
16443	Iterate from 0 to nrules.
16444	Use rule_number_as_item_number and item_number_as_rule_number.
16445	Adjust to `derive' now containing possibly 0.
16446	* src/gram.h (rule_number_as_item_number, item_number_as_rule_number):
16447	Handle the `- 1' part in rule numbers from/to item numbers.
16448	* src/conflicts.c (log_resolution): Fix the message which reversed
16449	shift and reduce.
16450	* src/output.c (action_row): Initialize default_rule to -1.
16451	(token_actions): Adjust.
16452	* tests/sets.at (Nullable, Firsts): Fix the previously bogus
16453	expected output.
16454	* tests/conflicts.at (Resolved SR Conflicts): Likewise.
16455
164562002-07-25  Akim Demaille  <akim@epita.fr>
16457
16458	* data/c.m4 (b4_c_function, b4_c_ansi_args, b4_c_ansi_arg)
16459	(b4_c_knr_arg_names, b4_c_knr_arg_name, b4_c_knr_arg_decls)
16460	(b4_c_knr_arg_decl): New.
16461	* data/yacc.c: Use it to define yysymprint, yydestruct, and
16462	yyreport_parse_error.
16463
164642002-07-25  Akim Demaille  <akim@epita.fr>
16465
16466	* data/yacc.c (yyreport_parse_error): New, extracted from...
16467	(yyparse): here.
16468	(yydestruct, yysymprint): Move above yyparse.
16469	Be K&R compliant.
16470
164712002-07-25  Akim Demaille  <akim@epita.fr>
16472
16473	* data/c.m4 (b4_ints_in, b4_int_type, b4_int_type_for): New,
16474	replace...
16475	(b4_sint_type, b4_uint_type): these.
16476	* data/yacc.c, data/glr.c, data/lalr1.cc: Use b4_int_type_for.
16477	* tests/regression.at (Web2c Actions): Adjust.
16478
164792002-07-25  Akim Demaille  <akim@epita.fr>
16480
16481	* src/gram.h (TIEM_NUMBER_MAX): New.
16482	(item_number_of_rule_number, rule_number_of_item_number): Rename
16483	as...
16484	(rule_number_as_item_number, item_number_as_rule_number): these.
16485	Adjust dependencies.
16486	* src/output.c (vector_number_t, VECTOR_NUMBER_MAX)
16487	(VECTOR_NUMBER_MIN, state_number_to_vector_number)
16488	(symbol_number_to_vector_number): New.
16489	(order): Of vector_number_t* type.
16490	(base_t, BASE_MAX, BASE_MIN): New.
16491	(froms, tos, width, pos, check): Of base_t type.
16492	(action_number_t, ACTION_MIN, ACTION_MAX): New.
16493	(actrow): Of action_number_t type.
16494	(conflrow): Of unsigned int type.
16495	(table_ninf, base_ninf): New.
16496	(GENERATE_MUSCLE_INSERT_TABLE): Also output the `*_min' value.
16497	(muscle_insert_int_table, muscle_insert_base_table)
16498	(muscle_insert_rule_number_table): New.
16499	(prepare_tokens): Output `toknum' as int_table.
16500	(action_row): Returns a rule_number_t.
16501	Use ACTION_MIN, not SHRT_MIN.
16502	(token_actions): yydefact is rule_number_t*.
16503	(table_ninf_remap): New.
16504	(pack_table): Use it for `base' and `table'.
16505	* data/yacc.c, data/glr.c, data/lalr1.cc (YYFLAG): Remove,
16506	replaced with...
16507	(YYPACT_NINF, YYTABLE_NINF): these.
16508	(yypact, yytable): Compute their types instead of hard-coded
16509	`short'.
16510	* tests/regression.at (Web2c Actions): Adjust.
16511
165122002-07-19  Akim Demaille  <akim@epita.fr>
16513
16514	* src/scan-gram.l (id): Can start with an underscore.
16515
165162002-07-16  Akim Demaille  <akim@epita.fr>
16517
16518	* src/assoc.c, src/asssoc.h (assoc_t, assoc_to_string): New.
16519	Adjust all former `associativity' dependencies.
16520	* src/symtab.c (symbol_new): Default associativity is `undef', not
16521	`right'.
16522	(symbol_check_alias_consistence): Adjust.
16523
165242002-07-09  Akim Demaille  <akim@epita.fr>
16525
16526	* doc/bison.texinfo: Properly set the ``header'' part.
16527	Use @dircategory ``GNU programming tools'' as per Texinfo's
16528	documentation.
16529	Use @copying.
16530
165312002-07-09  Akim Demaille  <akim@epita.fr>
16532
16533	* lib/quotearg.h: Protect against multiple inclusions.
16534	* src/location.h (location_t): Add a `file' member.
16535	(LOCATION_RESET, LOCATION_PRINT): Adjust.
16536	* src/complain.c (warn_at, complain_at, fatal_at): Drop
16537	`error_one_per_line' support.
16538
165392002-07-09  Akim Demaille  <akim@epita.fr>
16540
16541	* src/complain.h, src/complain.c (warn, complain): Remove, unused.
16542	* src/reader.c (lineno): Remove.
16543	Adjust all dependencies.
16544	(get_merge_function): Take a location and use complain_at.
16545	* src/symtab.h, src/symtab.c (symbol_make_alias): Likewise.
16546	* tests/regression.at (Invalid inputs, Mixing %token styles):
16547	Adjust.
16548
165492002-07-09  Akim Demaille  <akim@epita.fr>
16550
16551	* src/parse-gram.y (rules_or_grammar_declaration): Add an error
16552	recovery rule, and forbid extensions when --yacc.
16553	(gram_error): Use complain_at.
16554	* src/reader.c (reader): Exit if there were parse errors.
16555
165562002-07-09  Akim Demaille  <akim@epita.fr>
16557
16558	* tests/synclines.at (AT_SYNCLINES_COMPILE): New.
16559	(AT_TEST_SYNCLINE): Adjust to unusual GCC outputs.
16560	Reported by R Blake <blakers@mac.com>.
16561
165622002-07-09  Akim Demaille  <akim@epita.fr>
16563
16564	* data/yacc.c: Output the copyright notive in the header.
16565
165662002-07-03  Akim Demaille  <akim@epita.fr>
16567
16568	* src/output.c (froms, tos): Are state_number_t.
16569	(save_column): sp, sp1, and sp2 are state_number_t.
16570	(prepare): Rename `final' as `final_state_number', `nnts' as
16571	`nterms_number', `nrules' as `rules_number', `nstates' as
16572	`states_number', and `ntokens' as `tokens_number'.  Remove `nsym',
16573	unused.
16574	* data/yacc.c, data/glr.c, data/lalr1.cc: Adjust.
16575	* data/lalr1.cc (nsym_): Remove, unused.
16576
165772002-07-03  Akim Demaille  <akim@epita.fr>
16578
16579	* src/lalr.h, src/lalr.c (goto_number_t): New.
16580	* src/lalr.c (goto_list_t): New.
16581	Propagate them.
16582	* src/nullable.c (rule_list_t): New.
16583	Propagate.
16584	* src/types.h: Remove.
16585
165862002-07-03  Akim Demaille  <akim@epita.fr>
16587
16588	* src/closure.c (print_fderives): Use rule_rhs_print.
16589	* src/derives.c (print_derives): Use rule_rhs_print.
16590	(rule_list_t): New, replaces `shorts'.
16591	(set_derives): Add comments.
16592	* tests/sets.at (Nullable, Firsts): Adjust.
16593
165942002-07-03  Akim Demaille  <akim@epita.fr>
16595
16596	* src/output.c (prepare_actions): Free `tally' and `width'.
16597	(prepare_actions): Allocate and free `order'.
16598	* src/symtab.c (symbols_free): Free `symbols'.
16599	* src/scan-gram.l (scanner_free): Clear Flex's scanners memory.
16600	* src/output.c (m4_invoke): Move to...
16601	* src/scan-skel.l: here.
16602	(<<EOF>>): Close yyout, and free its name.
16603
166042002-07-03  Akim Demaille  <akim@epita.fr>
16605
16606	Fix some memory leaks, and fix a bug: state 0 was examined twice.
16607
16608	* src/LR0.c (new_state): Merge into...
16609	(state_list_append): this.
16610	(new_states): Merge into...
16611	(generate_states): here.
16612	(set_states): Don't ensure a proper `errs' state member here, do it...
16613	* src/conflicts.c (conflicts_solve): here.
16614	* src/state.h, src/state.c: Comment changes.
16615	(state_t): Rename member `shifts' as `transitions'.
16616	Adjust all dependencies.
16617	(errs_new): For consistency, also take the values as argument.
16618	(errs_dup): Remove.
16619	(state_errs_set): New.
16620	(state_reductions_set, state_transitions_set): Assert that no
16621	previous value was assigned.
16622	(state_free): New.
16623	(states_free): Use it.
16624	* src/conflicts.c (resolve_sr_conflict): Don't use an `errs_t' as
16625	temporary storage: use `errs' and `nerrs' as elsewhere.
16626	(set_conflicts): Allocate and free this `errs'.
16627
166282002-07-02  Akim Demaille  <akim@epita.fr>
16629
16630	* lib/libiberty.h: New.
16631	* lib: Update the bitset implementation from upstream.
16632	* src/closure.c, src/lalr.c, src/output.c, src/print_graph.c,
16633	* src/state.c: Use BITSET_FOR_EACH, not BITSET_EXECUTE.
16634	* src/main.c: Adjust bitset stats calls.
16635
166362002-07-01  Paul Eggert  <eggert@twinsun.com>
16637
16638	* src/scan-gram.l (<SC_ESCAPED_CHARACTER>): Convert to unsigned
16639	char, so that negative chars don't collide with $.
16640
166412002-06-30  Akim Demaille  <akim@epita.fr>
16642
16643	Have the GLR tests be `warning' checked, and fix the warnings.
16644
16645	* data/glr.c (YYFPRINTF): Always define it, not only when YYDEBUG
16646	(yyuserAction, yyreportAmbiguity): `Use' all the arguments.
16647	(yyremoveDeletes): `yyi' and `yyj' are size_t.
16648	Use YYFPRINTF when under if (YYDEBUG) to avoid empty `if' bodies.
16649	(yyaddDeferredAction): static.
16650	(yyglrReduce): yyi, yyk, amd yyposn are size_t.
16651	(yyreportParseError): yyprefix is const.
16652	yytokenp is used only when verbose.
16653	(yy__GNUC__): Replace with __GNUC__.
16654	(yypdumpstack): yyi is size_t.
16655	(yypreference): Un-yy local variables and arguments, to avoid
16656	clashes with `yyr1'.  Anyway, we are not in the user name space.
16657	(yytname_size): be an int, as is compared with ints.
16658	* tests/testsuite.at (AT_COMPILE, AT_PARSER_CHECK): New.
16659	Use them.
16660	* tests/cxx-gram.at: Use quotation to protect $1.
16661	Use AT_COMPILE to enable warnings hunts.
16662	Prototype yylex and yyerror.
16663	`Use' argc.
16664	Include `string.h', not `strings.h'.
16665	Produce and prototype stmtMerge only when used.
16666	yylex takes a location.
16667
166682002-06-30  Akim Demaille  <akim@epita.fr>
16669
16670	We spend a lot of time in quotearg, in particular when --verbose.
16671
16672	* src/symtab.c (symbol_get): Store a quoted version of the key.
16673	(symbol_tag_get, symbol_tag_get_n, symbol_tag_print): Remove.
16674	Adjust all callers.
16675
166762002-06-30  Akim Demaille  <akim@epita.fr>
16677
16678	* src/state.h (reductions_t): Rename member `nreds' as num.
16679	(errs_t): Rename members `nerrs' and `errs' as `num' and `symbols'.
16680	* src/state.c (ERRS_ALLOC, REDUCTIONS_ALLOC): Use the correct types.
16681
166822002-06-30  Akim Demaille  <akim@epita.fr>
16683
16684	* src/state.h, src/state.c (shift_t, SHIFT_SYMBOL, SHIFT_IS_SHIFT)
16685	(SHIFT_IS_GOTO, SHIFT_IS_ERROR, SHIFT_DISABLE, SHIFT_IS_DISABLED)
16686	(shifts_to): Rename as...
16687	(transition_t, TRANSITION_SYMBOL, TRANSITION_IS_TRANSITION)
16688	(TRANSITION_IS_GOTO, TRANSITION_IS_ERROR, TRANSITION_DISABLE)
16689	(TRANSITION_IS_DISABLED, transitions_to): these.
16690
166912002-06-30  Akim Demaille  <akim@epita.fr>
16692
16693	* src/print.c (print_shifts, print_gotos): Merge into...
16694	(print_transitions): this.
16695	(print_transitions, print_errs, print_reductions): Align the
16696	lookaheads columns.
16697	(print_core, print_transitions, print_errs, print_state,
16698	print_grammar): Output empty lines separator before, not after.
16699	(state_default_rule_compute): Rename as...
16700	(state_default_rule): this.
16701	* tests/conflicts.at (Defaulted Conflicted Reduction),
16702	(Unresolved SR Conflicts, Resolved SR Conflicts): Adjust.
16703	* tests/regression.at (Rule Line Numbers, Web2c Report): Adjust.
16704
167052002-06-30  Akim Demaille  <akim@epita.fr>
16706
16707	Display items as we display rules.
16708
16709	* src/gram.h, src/gram.c (rule_lhs_print): New.
16710	* src/gram.c (grammar_rules_partial_print): Use it.
16711	* src/print.c (print_core): Likewise.
16712	* tests/conflicts.at (Defaulted Conflicted Reduction),
16713	(Unresolved SR Conflicts): Adjust.
16714	(Unresolved SR Conflicts): Adjust and rename as...
16715	(Resolved SR Conflicts): this, as was meant.
16716	* tests/regression.at (Web2c Report): Adjust.
16717
167182002-06-30  Akim Demaille  <akim@epita.fr>
16719
16720	* src/print.c (state_default_rule_compute): New, extracted from...
16721	(print_reductions): here.
16722	Pessimize, but clarify the code.
16723	* tests/conflicts.at (Defaulted Conflicted Reduction): New.
16724
167252002-06-30  Akim Demaille  <akim@epita.fr>
16726
16727	* src/output.c (action_row): Let default_rule be always a rule
16728	number.
16729
167302002-06-30  Akim Demaille  <akim@epita.fr>
16731
16732	* src/closure.c (print_firsts, print_fderives, closure):
16733	Use BITSET_EXECUTE.
16734	* src/lalr.c (lookaheads_print): Likewise.
16735	* src/state.c (state_rule_lookaheads_print): Likewise.
16736	* src/print_graph.c (print_core): Likewise.
16737	* src/print.c (print_reductions): Likewise.
16738	* src/output.c (action_row): Likewise.
16739	Use SHIFT_IS_DISABLED, SHIFT_IS_SHIFT and SHIFT_SYMBOL.
16740
167412002-06-30  Akim Demaille  <akim@epita.fr>
16742
16743	* src/print_graph.c: Use report_flag.
16744
167452002-06-30  Akim Demaille  <akim@epita.fr>
16746
16747	* src/lalr.c (traverse, digraph, matrix_print, transpose): Move
16748	to...
16749	* src/relation.h, src/relation.c (traverse, relation_digraph)
16750	(relation_print, relation_transpose): New.
16751
167522002-06-30  Akim Demaille  <akim@epita.fr>
16753
16754	* src/state.h, src/state.c (shifts_to): New.
16755	* src/lalr.c (build_relations): Use it.
16756
167572002-06-30  Akim Demaille  <akim@epita.fr>
16758
16759	* src/gram.h (rule_number_t, RULE_NUMBER_MAX, int_of_rule_number)
16760	(item_number_of_rule_number, rule_number_of_item_number): New.
16761	* src/LR0.c, src/closure.c, src/derives.c, src/derives.h,
16762	* src/gram.c, src/lalr.c, src/nullable.c, src/output.c, src/print.c,
16763	* src/print_graph.c, src/reader.c, src/reduce.c, src/reduce.h:
16764	Propagate their use.
16765	Much remains to be done, in particular wrt `shorts' from types.h.
16766
167672002-06-30  Akim Demaille  <akim@epita.fr>
16768
16769	* src/symtab.c (symbol_new): Initialize the `printer' member.
16770
167712002-06-30  Akim Demaille  <akim@epita.fr>
16772
16773	* src/LR0.c (save_reductions): Remove, replaced by...
16774	* src/state.h, src/state.c (state_reductions_set): New.
16775	(reductions, errs): Rename as...
16776	(reductions_t, errs_t): these.
16777	Adjust all dependencies.
16778
167792002-06-30  Akim Demaille  <akim@epita.fr>
16780
16781	* src/LR0.c (state_list_t, state_list_append): New.
16782	(first_state, last_state): Now symbol_list_t.
16783	(this_state): Remove.
16784	(new_itemsets, append_states, save_reductions): Take a state_t as
16785	argument.
16786	(set_states, generate_states): Adjust.
16787	(save_shifts): Remove, replaced by...
16788	* src/state.h, src/state.c (state_shifts_set): New.
16789	(shifts): Rename as...
16790	(shifts_t): this.
16791	Adjust all dependencies.
16792	* src/state.h (state_t): Remove the `next' member.
16793
167942002-06-30  Akim Demaille  <akim@epita.fr>
16795
16796	* src/vcg.c (quote): Use slot 2, since we often pass symbol tag
16797	escaped in slot 0.
16798
167992002-06-30  Akim Demaille  <akim@epita.fr>
16800
16801	Use hash.h for the state hash table.
16802
16803	* src/LR0.c (STATE_HASH_SIZE, state_hash): Remove.
16804	(allocate_storage): Use state_hash_new.
16805	(free_storage): Use state_hash_free.
16806	(new_state, get_state): Adjust.
16807	* src/lalr.h, src/lalr.c (states): Move to...
16808	* src/states.h (state_t): Remove the `link' member, no longer
16809	used.
16810	* src/states.h, src/states.c: here.
16811	(state_hash_new, state_hash_free, state_hash_lookup)
16812	(state_hash_insert, states_free): New.
16813	* src/states.c (state_table, state_compare, state_hash): New.
16814	* src/output.c (output_actions): Do not free states now, since we
16815	still need to know the final_state number in `prepare', called
16816	afterwards.  Do it...
16817	* src/main.c (main): here: call states_free after `output'.
16818
168192002-06-30  Akim Demaille  <akim@epita.fr>
16820
16821	* src/state.h, src/state.c (state_new): New, extracted from...
16822	* src/LR0.c (new_state): here.
16823	* src/state.h (STATE_ALLOC): Move to...
16824	* src/state.c: here.
16825	* src/LR0.h, src/LR0.c (nstates, final_state): Move to...
16826	* src/state.h, src/state.c: here.
16827
168282002-06-30  Akim Demaille  <akim@epita.fr>
16829
16830	* src/reader.c (gensym): Rename as...
16831	* src/symtab.h, src/symtab.c (dummy_symbol_get): this.
16832	(getsym): Rename as...
16833	(symbol_get): this.
16834
168352002-06-30  Akim Demaille  <akim@epita.fr>
16836
16837	* src/state.h (state_number_t, STATE_NUMBER_MAX): New.
16838	* src/LR0.c, src/LR0.h, src/conflicts.c, src/lalr.c, src/lalr.h,
16839	* src/output.c, src/print.c, src/print_graph.c: Propagate.
16840	* src/LR0.h, src/LR0.h (final_state): Is a state_t*.
16841
168422002-06-30  Akim Demaille  <akim@epita.fr>
16843
16844	Make the test suite pass with warnings checked.
16845
16846	* tests/actions.at (Printers and Destructors): Improve.
16847	Avoid unsigned vs. signed issues.
16848	* tests/calc.at: Don't exercise the scanner here, do it...
16849	* tests/input.at (Torturing the Scanner): here.
16850
168512002-06-28  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
16852
16853	* data/glr.c: Correct typo in Emacs-mode directive.  Slightly
16854	reorganize first lines parallel to yacc.c.
16855
168562002-06-28  Akim Demaille  <akim@epita.fr>
16857
16858	* data/c.m4 (b4_copyright, b4_sint_type, b4_uint_type, b4_token_define)
16859	(b4_token_enum, b4_token_defines): New, factored from...
16860	* data/lalr1.cc, data/yacc.c, glr.c: here.
16861
168622002-06-28  Akim Demaille  <akim@epita.fr>
16863
16864	* data/yacc.c (yydestruct, yysymprint): Pacify GCC warnings for
16865	unused variables.
16866	* src/output.c (merger_output): static.
16867
168682002-06-28  Akim Demaille  <akim@epita.fr>
16869
16870	* src/reader.h: s/grammer_current_rule_merge_set/grammar_.../.
16871	* src/conflicts.c (conflicts_total_count): `i' is unsigned, to
16872	pacify GCC.
16873	* src/output.c (save_row): Initialize all the variables to pacify GCC.
16874
168752002-06-27  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
16876
16877	Accumulated changelog for new GLR parsing features.
16878
16879	* src/conflicts.c (count_total_conflicts): Change name to
16880	conflicts_total_count.
16881	* src/conflicts.h: Ditto.
16882	* src/output.c (token_actions): Use the new name.
16883	(output_conflicts): Change conflp => conflict_list_heads, and
16884	confl => conflict_list for better readability.
16885	* data/glr.c: Use the new names.
16886	* NEWS: Add self to GLR announcement.
16887
16888	* src/reader.c (free_merger_functions): Cleanup: XFREE->free.
16889
16890	* doc/bison.texinfo (GLR Parsers): Make corrections suggested by
16891	Akim Demaille.
16892
16893	* data/bison.glr: Change name to glr.c
16894	* data/glr.c: Renamed from bison.glr.
16895	* data/Makefile.am: Add glr.c
16896
16897	* src/getargs.c:
16898
16899	* src/symlist.h:  Add dprec and merger fields to symbol_list_s.
16900	* src/symlist.c (symbol_list_new): Initialize dprec and merger fields.
16901
16902	Originally 2002-06-16  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
16903
16904	* data/bison.glr: Be sure to restore the
16905	current #line when returning to the skeleton contents after having
16906	exposed the input file's #line.
16907
16908	Originally 2002-06-13  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
16909
16910	* data/bison.glr: Bring up to date with changes to bison.simple.
16911
16912	Originally 2002-06-03  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
16913
16914	* data/bison.glr: Correct definitions that use b4_prefix.
16915	Various reformatting.
16916	(GLRStack): Make yychar (in YYPURE case) and yytokenp as part of stack.
16917	(yyreportParseError, yyrecoverParseError, yyprocessOneStack): remove
16918	yytokenp argument; now part of stack.
16919	(yychar): Define to behave as documented.
16920	(yyclearin): Ditto.
16921
16922	Originally 2002-05-14  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
16923
16924	* src/reader.h: Add declaration for free_merger_functions.
16925
16926	* src/reader.c (merge_functions): New variable.
16927	(get_merge_function): New function.
16928	(free_merger_functions): New function.
16929	(readgram): Check for %prec that is not followed by a symbol.
16930	Handle %dprec and %merge declarations.
16931	(packgram): Initialize dprec and merger fields in rules array.
16932
16933	* src/output.c (conflict_tos, conflrow, conflict_table, conflict_list,
16934	conflict_list_cnt, conflict_list_free): New variables.
16935	(table_grow): Also grow conflict_table.
16936	(prepare_rules): Output dprec and merger tables.
16937	(conflict_row): New function.
16938	(action_row): Output conflict lists for GLR parser.  Don't use
16939	default reduction in conflicted states for GLR parser so that there
16940	are spaces for the conflict lists.
16941	(save_row): Also save conflict information.
16942	(token_actions): Allocate conflict list.
16943	(merger_output): New function.
16944	(pack_vector): Pack conflict table, too.
16945	(output_conflicts): New function to output yyconflp and yyconfl.
16946	(output_check): Allocate conflict_tos.
16947	(output_actions): Output conflict tables, also.
16948	(output_skeleton): Output b4_mergers definition.
16949	(prepare): Output b4_max_rhs_length definition.
16950	Use 'bison.glr' as default skeleton for GLR parsers.
16951
16952	* src/gram.c (glr_parser): New flag.
16953	(grammar_free): Call free_merger_functions.
16954
16955	* src/conflicts.c (count_rr_conflicts): Augment to optionally count
16956	all pairs of conflicting reductions, rather than just all tokens
16957	causing conflicts.  Needed to size conflict tables.
16958	(conflicts_output): Modify call to count_rr_conflicts for new
16959	interface.
16960	(conflicts_print): Ditto.
16961	(count_total_conflicts): New function.
16962
16963	* src/reader.h (merger_list): New type.
16964	(merge_functions): New variable.
16965
16966	* src/lex.h (tok_dprec, tok_merge): New token types.
16967
16968	* src/gram.h (rule_s): Add dprec and merger fields.
16969	(glr_parser): New flag.
16970
16971	* src/conflicts.h (count_total_conflicts): New function.
16972
16973	* src/options.c (option_table): Add %dprec, %merge, and %glr-parser.
16974
16975	* doc/bison.texinfo (Generalized LR Parsing): New section.
16976	(GLR Parsers): New section.
16977	(Language and Grammar): Mention GLR parsing.
16978	(Table of Symbols): Add %dprec, %glr-parser, %merge, GLR
16979	Correct typo ("tge" -> "the").
16980
16981	* data/bison.glr: New skeleton for GLR parsing.
16982
16983	* tests/cxx-gram.at: New tests for GLR parsing.
16984
16985	* tests/testsuite.at: Include cxx-gram.at.
16986
16987	* tests/Makefile.am: Add cxx-gram.at.
16988
16989	* src/parse-gram.y:
16990
16991	* src/scan-gram.l: Add %dprec, %glr-parser, %merge.
16992
16993	* src/parse-gram.y: Grammar for %dprec, %merge, %glr-parser.
16994
169952002-06-27  Akim Demaille  <akim@epita.fr>
16996
16997	* src/options.h, src/options.c: Remove.
16998	* src/getargs.c (short_options, long_options): New.
16999
170002002-06-27  Akim Demaille  <akim@epita.fr>
17001
17002	* data/bison.simple, data/bison.c++: Rename as...
17003	* data/yacc.c, data/lalr1.cc: these.
17004	* doc/bison.texinfo (Environment Variables): Remove.
17005
170062002-06-25  Raja R Harinath  <harinath@cs.umn.edu>
17007
17008	* src/getargs.c (report_argmatch): Initialize strtok().
17009
170102002-06-20  Akim Demaille  <akim@epita.fr>
17011
17012	* data/bison.simple (b4_symbol_actions): New, replaces...
17013	(b4_symbol_destructor, b4_symbol_printer): these.
17014	(yysymprint): Be sure to call YYPRINT only for tokens, and using
17015	user token numbers.
17016
170172002-06-20  Akim Demaille  <akim@epita.fr>
17018
17019	* data/bison.simple (yydestructor): Rename as...
17020	(yydestruct): this.
17021
170222002-06-20  Akim Demaille  <akim@epita.fr>
17023
17024	* src/symtab.h, src/symtab.c (symbol_type_set)
17025	(symbol_destructor_set, symbol_precedence_set): The location is
17026	the last argument.
17027	Adjust all callers.
17028
170292002-06-20  Akim Demaille  <akim@epita.fr>
17030
17031	* src/parse-gram.y (YYPRINT, yyprint): Don't mess with the parser
17032	internals.
17033	* src/reader.h, src/reader.c (grammar_current_rule_prec_set):
17034	Takes a location.
17035	* src/symtab.h, src/symtab.c (symbol_class_set)
17036	(symbol_user_token_number_set): Likewise.
17037	Adjust all callers.
17038	Promote complain_at.
17039	* tests/input.at (Type Clashes): Adjust.
17040
170412002-06-20  Akim Demaille  <akim@epita.fr>
17042
17043	* data/bison.simple (YYLEX): Fix the declaration when
17044	%pure-parser.
17045
170462002-06-20  Akim Demaille  <akim@epita.fr>
17047
17048	* data/bison.simple (yysymprint): Don't print the token number,
17049	just its name.
17050	* tests/actions.at (Destructors): Rename as...
17051	(Printers and Destructors): this.
17052	Also exercise %printer.
17053
170542002-06-20  Akim Demaille  <akim@epita.fr>
17055
17056	* data/bison.simple (YYDSYMPRINT): New.
17057	Use it to remove many of the #if YYDEBUG/if (yydebug).
17058
170592002-06-20  Akim Demaille  <akim@epita.fr>
17060
17061	* src/symtab.h, src/symtab.c (symbol_t): printer and
17062	printer_location are new members.
17063	(symbol_printer_set): New.
17064	* src/parse-gram.y (PERCENT_PRINTER): New token.
17065	Handle its associated rule.
17066	* src/scan-gram.l: Adjust.
17067	(handle_destructor_at, handle_destructor_dollar): Rename as...
17068	(handle_symbol_code_at, handle_symbol_code_dollar): these.
17069	* src/output.c (symbol_printers_output): New.
17070	(output_skeleton): Call it.
17071	* data/bison.simple (yysymprint): New.  Cannot be named yyprint
17072	since there are already many grammar files with a user `yyprint'.
17073	Replace the calls to YYPRINT to calls to yysymprint.
17074	* tests/calc.at: Adjust.
17075	* tests/torture.at (AT_DATA_STACK_TORTURE): Remove YYPRINT: it was
17076	taking advantage of parser very internal details (stack size!).
17077
170782002-06-20  Akim Demaille  <akim@epita.fr>
17079
17080	* src/scan-gram.l: Complete the scanner with the missing patterns
17081	to pacify Flex.
17082	Use `quote' and `symbol_tag_get' where appropriate.
17083
170842002-06-19  Akim Demaille  <akim@epita.fr>
17085
17086	* tests/actions.at (Destructors): Augment to test locations.
17087	* data/bison.simple (yydestructor): Pass it the current location
17088	if locations are enabled.
17089	Prototype only when __STDC__ or C++.
17090	Change the argument names to move into the yy name space: there is
17091	user code here.
17092
170932002-06-19  Akim Demaille  <akim@epita.fr>
17094
17095	* data/bison.simple (b4_pure_if): New.
17096	Use it instead of #ifdef YYPURE.
17097
170982002-06-19  Akim Demaille  <akim@epita.fr>
17099
17100	* data/bison.simple (b4_location_if): New.
17101	Use it instead of #ifdef YYLSP_NEEDED.
17102
171032002-06-19  Akim Demaille  <akim@epita.fr>
17104
17105	Prepare @$ in %destructor, but currently don't bind it in the
17106	skeleton, as %location use is not cleaned up yet.
17107
17108	* src/scan-gram.l (handle_dollar, handle_destructor_at)
17109	(handle_action_at): New.
17110	(handle_at, handle_action_dollar, handle_destructor_dollar): Take
17111	a braced_code_t and a location as additional arguments.
17112	(handle_destructor_dollar): Instead of requiring `b4_eval', just
17113	unquote one when outputting `b4_dollar_dollar'.
17114	Adjust callers.
17115	* data/bison.simple (b4_eval): Remove.
17116	(b4_symbol_destructor): Adjust.
17117	* tests/input.at (Invalid @n): Adjust.
17118
171192002-06-19  Zack Weinberg  <zack@codesourcery.com>
17120
17121	* doc/bison.texinfo: Document ability to have multiple
17122	prologue sections.
17123
171242002-06-18  Akim Demaille  <akim@epita.fr>
17125
17126	* src/files.c (compute_base_names): When computing the output file
17127	names from the input file name, strip the directory part.
17128
171292002-06-18  Akim Demaille  <akim@epita.fr>
17130
17131	* data/bison.simple.new: Comment changes.
17132	Reported by Andreas Schwab.
17133
171342002-06-18  Matt Kraai  <kraai@alumni.cmu.edu>
17135
17136	* data/bison.simple (yyoverflowlab): #ifndef yyoverflow, so that
17137	there are no `label `yyoverflowlab' defined but not used' warnings
17138	when yyoverflow is defined.
17139
171402002-06-18  Akim Demaille  <akim@epita.fr>
17141
17142	* src/symtab.h, src/symtab.c (symbol_t): destructor_location is a
17143	new member.
17144	(symbol_destructor_set): Adjust.
17145	* src/output.c (symbol_destructors_output): Output the destructor
17146	locations.
17147	Output the symbol name.
17148	* data/bison.simple (b4_symbol_destructor): Adjust.
17149
171502002-06-18  Cris Bailiff  <c.bailiff@awayweb.com>
17151	and Akim Demaille  <akim@epita.fr>
17152
17153	* data/bison.simple.new (yyerrlab1): Be sure to pop and destroy
17154	what's left on the stack when the error recovery hits EOF.
17155	* tests/actions.at (Destructors): Complete to exercise this case.
17156
171572002-06-17  Akim Demaille  <akim@epita.fr>
17158
17159	* data/m4sugar/m4sugar.m4 (m4_map): Recognize when the list of
17160	arguments is really empty, not only equal to `[]'.
17161	* src/symtab.h, src/symtab.c (symbol_t): `destructor' is a new
17162	member.
17163	(symbol_destructor_set): New.
17164	* src/output.c (symbol_destructors_output): New.
17165	* src/reader.h (brace_code_t, current_braced_code): New.
17166	* src/scan-gram.l (BRACED_CODE): Use it to branch on...
17167	(handle_dollar): Rename as...
17168	(handle_action_dollar): this.
17169	(handle_destructor_dollar): New.
17170	* src/parse-gram.y (PERCENT_DESTRUCTOR): New.
17171	(grammar_declaration): Use it.
17172	* data/bison.simple (yystos): Is always defined.
17173	(yydestructor): New.
17174	* tests/actions.at (Destructors): New.
17175	* tests/calc.at (_AT_CHECK_CALC_ERROR): Don't rely on egrep.
17176
171772002-06-17  Akim Demaille  <akim@epita.fr>
17178
17179	* src/symlist.h, src/symlist.c (symbol_list_length): New.
17180	* src/scan-gram.l (handle_dollar, handle_at): Compute the
17181	rule_length only when needed.
17182	* src/output.c (actions_output, token_definitions_output): Output
17183	the full M4 block.
17184	* src/symtab.c: Don't access directly to the symbol tag, use
17185	symbol_tag_get.
17186	* src/parse-gram.y: Use symbol_list_free.
17187
171882002-06-17  Akim Demaille  <akim@epita.fr>
17189
17190	* src/reader.h, src/reader.c (symbol_list, symbol_list_new)
17191	(symbol_list_prepend, get_type_name): Move to...
17192	* src/symlist.h, src/symlist.c (symbol_list_t, symbol_list_new)
17193	(symbol_list_prepend, symbol_list_n_type_name_get): here.
17194	Adjust all callers.
17195	(symbol_list_free): New.
17196	* src/scan-gram.l (handle_dollar): Takes a location.
17197	* tests/input.at (Invalid $n): Adjust.
17198
171992002-06-17  Akim Demaille  <akim@epita.fr>
17200
17201	* src/reader.h, src/reader.c (symbol_list_new): Export it.
17202	(symbol_list_prepend): New.
17203	* src/parse-gram.y (%union): `list' is a new member.
17204	(symbols.1): New, replaces...
17205	(terms_to_prec.1, nterms_to_type.1): these.
17206	* src/symtab.h, src/symtab.c (symbol_type_set, symbol_precedence_set)
17207	Take a location as additional argument.
17208	Adjust all callers.
17209
172102002-06-15  Akim Demaille  <akim@epita.fr>
17211
17212	* src/parse-gram.y: Move %token in the declaration section so that
17213	we don't depend upon CVS Bison.
17214
172152002-06-15  Akim Demaille  <akim@epita.fr>
17216
17217	* src/state.h, src/state.c (state_rule_lookaheads_print): New.
17218	* src/print.c (print_core): Use it.
17219
172202002-06-15  Akim Demaille  <akim@epita.fr>
17221
17222	* src/conflicts.c (log_resolution): Accept the rule involved in
17223	the sr conflicts instead of the lookahead number that points to
17224	that rule.
17225	(flush_reduce): Accept the current lookahead vector as argument,
17226	instead of the index in LA.
17227	(resolve_sr_conflict): Accept the current number of lookahead
17228	bitset to consider for the STATE, instead of the index in LA.
17229	(set_conflicts): Adjust.
17230	* src/lalr.c, src/lalr.h, src/state.h: Comment changes.
17231
172322002-06-15  Akim Demaille  <akim@epita.fr>
17233
17234	* src/state.h (state_t): Replace the `lookaheadsp' member, a
17235	short, with `lookaheads' (bitsetv), `lookaheads_rule' (rule_t**).
17236	Adjust all dependencies.
17237	* src/lalr.c (initialize_lookaheads): Split into...
17238	(states_lookaheads_count, states_lookaheads_initialize): these.
17239	(lalr): Adjust.
17240
172412002-06-15  Akim Demaille  <akim@epita.fr>
17242
17243	* src/gram.h, src/gram.c (grammar_rules_partial_print): New, eved
17244	out of...
17245	(grammar_rules_print): here.
17246	* src/reduce.c (reduce_output): Use it.
17247	* tests/reduce.at (Useless Rules, Reduced Automaton)
17248	(Underivable Rules): Adjust.
17249
172502002-06-15  Akim Demaille  <akim@epita.fr>
17251
17252	Copy BYacc's nice way to report the grammar.
17253
17254	* src/gram.h, src/gram.c (grammar_rhs_print, grammar_rules_print):
17255	New.
17256	Don't print the rules' location, it is confusing and useless.
17257	(rule_print): Use grammar_rhs_print.
17258	* src/print.c (print_grammar): Use grammar_rules_print.
17259
172602002-06-15  Akim Demaille  <akim@epita.fr>
17261
17262	Complete and rationalize `useless thing' warnings.
17263
17264	* src/symtab.h, src/symtab.c (symbol_tag_get, symbol_tag_get_n)
17265	(symbol_tag_print): New.
17266	Use them everywhere in place of accessing directly the tag member.
17267	* src/gram.h, src/gram.c (rule_print): New.
17268	Use it where a rule used to be printed `by hand'.
17269	* src/reduce.c (nonterminals_reduce): Report the use nonterminals.
17270	(reduce_grammar_tables): Report the useless rules.
17271	(reduce_print): Useless things are a warning, not an error.
17272	Report it as such.
17273	* tests/reduce.at (Useless Nonterminals, Useless Rules):
17274	(Reduced Automaton, Underivable Rules): Adjust.
17275	* tests/regression.at (Web2c Report, Web2c Report): Adjust.
17276	* tests/conflicts.at (Unresolved SR Conflicts)
17277	(Solved SR Conflicts): Adjust.
17278
172792002-06-15  Akim Demaille  <akim@epita.fr>
17280
17281	Let symbols have a location.
17282
17283	* src/symtab.h, src/symtab.c (symbol_t): Location is a new member.
17284	(getsym): Adjust.
17285	Adjust all callers.
17286	* src/complain.h, src/complain.c (complain_at, fatal_at, warn_at):
17287	Use location_t, not int.
17288	* src/symtab.c (symbol_check_defined): Take advantage of the
17289	location.
17290	* tests/regression.at (Invalid inputs): Adjust.
17291
172922002-06-15  Akim Demaille  <akim@epita.fr>
17293
17294	* src/parse-gram.y (YYLLOC_DEFAULT, current_lhs_location): New.
17295	(input): Don't try to initialize yylloc here, do it in the
17296	scanner.
17297	* src/scan-gram.l (YY_USER_INIT): Initialize yylloc.
17298	* src/gram.h (rule_t): Change line and action_line into location
17299	and action_location, of location_t type.
17300	Adjust all dependencies.
17301	* src/location.h, src/location.c (empty_location): New.
17302	* src/reader.h, src/reader.c (grammar_start_symbol_set)
17303	(grammar_symbol_append, grammar_rule_begin, grammar_rule_end)
17304	(grammar_current_rule_symbol_append)
17305	(grammar_current_rule_action_append): Expect a location as argument.
17306	* src/reader.c (grammar_midrule_action): Adjust to attach an
17307	action's location as dummy symbol location.
17308	* src/symtab.h, src/symtab.c (startsymbol_location): New.
17309	* tests/regression.at (Web2c Report, Rule Line Numbers): Adjust
17310	the line numbers.
17311
173122002-06-14  Akim Demaille  <akim@epita.fr>
17313
17314	Grammar declarations may be found in the grammar section.
17315
17316	* src/parse-gram.y (rules_or_grammar_declaration): New.
17317	(declarations): Each declaration may end with a semicolon, not
17318	just...
17319	(grammar_declaration): `"%union"'.
17320	(grammar): Branch to rules_or_grammar_declaration.
17321
173222002-06-14  Akim Demaille  <akim@epita.fr>
17323
17324	* src/main.c (main): Invoke scanner_free.
17325
173262002-06-14  Akim Demaille  <akim@epita.fr>
17327
17328	* src/output.c (m4_invoke): Extracted from...
17329	(output_skeleton): here.
17330	Free tempfile.
17331
173322002-06-14  Akim Demaille  <akim@epita.fr>
17333
17334	* src/parse-gram.y (directives, directive, gram)
17335	(grammar_directives, precedence_directives, precedence_directive):
17336	Rename as...
17337	(declarations, declaration, grammar, grammar_declaration)
17338	(precedence_declaration, precedence_declarator): these.
17339	(symbol_declaration): New.
17340
173412002-06-14  Akim Demaille  <akim@epita.fr>
17342
17343	* src/files.c (action_obstack): Remove, unused.
17344	(output_obstack): Remove it, and all its dependencies, as it is no
17345	longer needed.
17346	* src/reader.c (epilogue_set): Build the epilogue in the
17347	muscle_obstack.
17348	* src/output.h, src/output.c (muscle_obstack): Move to...
17349	* src/muscle_tab.h, src/muscle_tab.h: here.
17350	(muscle_init): Initialize muscle_obstack.
17351	(muscle_free): New.
17352	* src/main.c (main): Call it.
17353
173542002-06-14  Akim Demaille  <akim@epita.fr>
17355
17356	* src/location.h: New, extracted from...
17357	* src/reader.h: here.
17358	* src/Makefile.am (noinst_HEADERS): Merge into
17359	(bison_SOURCES): this.
17360	Add location.h.
17361	* src/parse-gram.y: Use location_t instead of Bison's.
17362	* src/reader.h, src/reader.c (prologue_augment, epilogue_set):
17363	Use location_t instead of ints.
17364
173652002-06-14  Akim Demaille  <akim@epita.fr>
17366
17367	* data/bison.simple, data/bison.c++: Be sure to restore the
17368	current #line when returning to the skeleton contents after having
17369	exposed the input file's #line.
17370
173712002-06-12  Akim Demaille  <akim@epita.fr>
17372
17373	* src/scan-gram.l (SC_BRACED_CODE): Don't use `<.*>', it is too
17374	eager.
17375	* tests/actions.at (Exotic Dollars): New.
17376
173772002-06-12  Akim Demaille  <akim@epita.fr>
17378
17379	* src/scan-gram.l (SC_PROLOGUE): Don't eat characters amongst
17380	['"/] too eagerly.
17381	* tests/input.at (Torturing the Scanner): New.
17382
173832002-06-11  Akim Demaille  <akim@epita.fr>
17384
17385	* src/scan-gram.l (YY_OBS_INIT): Remove, replace with...
17386	[SC_COMMENT,SC_STRING,SC_CHARACTER,SC_BRACED_CODE,SC_PROLOGUE]
17387	[SC_EPILOGUE]: Output the quadrigraphs only when not in a comment.
17388	* src/reader.h, src/scan-gram.l (scanner_initialize): this.
17389	* src/reader.c (reader): Use it.
17390
173912002-06-11  Akim Demaille  <akim@epita.fr>
17392
17393	* src/scan-gram.l (YY_OBS_FINISH): Don't set yylval.
17394	Adjust all callers.
17395	(scanner_last_string_free): New.
17396
173972002-06-11  Akim Demaille  <akim@epita.fr>
17398
17399	* src/scan-gram.l (YY_INIT, YY_GROW, YY_FINISH): Rename as...
17400	(YY_OBS_INIT, YY_OBS_GROW, YY_OBS_FINISH): these.
17401	(last_string, YY_OBS_FREE): New.
17402	Use them when returning an ID.
17403
174042002-06-11  Akim Demaille  <akim@epita.fr>
17405
17406	Have Bison grammars parsed by a Bison grammar.
17407
17408	* src/reader.c, src/reader.h (prologue_augment): New.
17409	* src/reader.c (copy_definition): Remove.
17410
17411	* src/reader.h, src/reader.c (gram_start_symbol_set, prologue_augment)
17412	(grammar_symbol_append, grammar_rule_begin, grammar_midrule_action)
17413	(grammar_current_rule_prec_set, grammar_current_rule_check)
17414	(grammar_current_rule_symbol_append)
17415	(grammar_current_rule_action_append): Export.
17416	* src/parse-gram.y (symbol_list_new, symbol_list_symbol_append_
17417	(symbol_list_action_append): Remove.
17418	Hook the routines from reader.
17419	* src/scan-gram.l: In INITIAL, characters and strings are tokens.
17420	* src/system.h (ATTRIBUTE_NORETURN, ATTRIBUTE_UNUSED): Now.
17421
17422	* src/reader.c (read_declarations): Remove, unused.
17423
17424	* src/parse-gram.y: Handle the epilogue.
17425	* src/reader.h, src/reader.c (gram_start_symbol_set): Rename as...
17426	(grammar_start_symbol_set): this.
17427	* src/scan-gram.l: Be sure to ``use'' yycontrol to keep GCC quiet.
17428	* src/reader.c (readgram): Remove, unused.
17429	(reader): Adjust to insert eoftoken and axiom where appropriate.
17430
17431	* src/reader.c (copy_dollar): Replace with...
17432	* src/scan-gram.h (handle_dollar): this.
17433	* src/parse-gram.y: Remove `%thong'.
17434
17435	* src/reader.c (copy_at): Replace with...
17436	* src/scan-gram.h (handle_at): this.
17437
17438	* src/complain.h, src/complain.c (warn_at, complain_at, fatal_at):
17439	New.
17440
17441	* src/scan-gram.l (YY_LINES): Keep lineno synchronized for the
17442	time being.
17443
17444	* src/reader.h, src/reader.c (grammar_rule_end): New.
17445
17446	* src/parse.y (current_type, current_class): New.
17447	Implement `%nterm', `%token' support.
17448	Merge `%term' into `%token'.
17449	(string_as_id): New.
17450	* src/symtab.h, src/symtab.c (symbol_make_alias): Don't pass the
17451	type name.
17452
17453	* src/parse-gram.y: Be sure to handle properly the beginning of
17454	rules.
17455
17456	* src/parse-gram.y: Handle %type.
17457	* src/reader.c (grammar_rule_end): Call grammar_current_rule_check.
17458
17459	* src/parse-gram.y: More directives support.
17460	* src/options.c: No longer handle source directives.
17461
17462	* src/parse-gram.y: Fix %output.
17463
17464	* src/parse-gram.y: Handle %union.
17465	Use the prologue locations.
17466	* src/reader.c (parse_union_decl): Remove.
17467
17468	* src/reader.h, src/reader.c (epilogue_set): New.
17469	* src/parse-gram.y: Use it.
17470
17471	* data/bison.simple, data/bison.c++: b4_stype is now either not
17472	defined, then default to int, or to the contents of %union,
17473	without `union' itself.
17474	Adjust.
17475	* src/muscle_tab.c (muscle_init): Don't predefine `stype'.
17476
17477	* src/output.c (actions_output): Don't output braces, as they are
17478	already handled by the scanner.
17479
17480	* src/scan-gram.l (SC_CHARACTER): Set the user_token_number of
17481	characters to themselves.
17482
17483	* tests/reduce.at (Reduced Automaton): End the grammars with %% so
17484	that the epilogue has a proper #line.
17485
17486	* src/parse-gram.y: Handle precedence/associativity.
17487
17488	* src/symtab.c (symbol_precedence_set): Requires the symbol to be
17489	a terminal.
17490	* src/scan-gram.l (SC_BRACED_CODE): Catch strings and characters.
17491	* tests/calc.at: Do not use `%token "foo"' as it makes not sense
17492	at all to define terminals that cannot be emitted.
17493
17494	* src/scan-gram.l: Escape M4 characters.
17495
17496	* src/scan-gram.l: Working properly with escapes in user
17497	strings/characters.
17498
17499	* tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR)
17500	(AT_DATA_HORIZONTAL_GRAMMAR): Respect the `%token ID NUM STRING'
17501	grammar.
17502	Use more modest sizes, as for the time being the parser does not
17503	release memory, and therefore the process swallows a huge amount
17504	of memory.
17505
17506	* tests/torture.at (AT_DATA_LOOKAHEADS_GRAMMAR): Adjust to the
17507	stricter %token grammar.
17508
17509	* src/symtab.h (associativity): Add `undef_assoc'.
17510	(symbol_precedence_set): Do nothing when passed an undef_assoc.
17511	* src/symtab.c (symbol_check_alias_consistence): Adjust.
17512
17513	* tests/regression.at (Invalid %directive): Remove, as it is now
17514	meaningless.
17515	(Invalid inputs): Adjust to the new error messages.
17516	(Token definitions): The new grammar doesn't allow too many
17517	eccentricities.
17518
17519	* src/lex.h, src/lex.c: Remove.
17520	* src/reader.c (lastprec, skip_to_char, read_signed_integer)
17521	(copy_character, copy_string2, copy_string, copy_identifier)
17522	(copy_comment, parse_token_decl, parse_type_decl, parse_assoc_decl)
17523	(parse_muscle_decl, parse_dquoted_param, parse_skel_decl)
17524	(parse_action): Remove.
17525	* po/POTFILES.in: Adjust.
17526
175272002-06-11  Akim Demaille  <akim@epita.fr>
17528
17529	* src/reader.c (parse_action): Don't store directly into the
17530	rule's action member: return the action as a string.
17531	Don't require `rule_length' as an argument: compute it.
17532	(grammar_current_rule_symbol_append)
17533	(grammar_current_rule_action_append): New, eved out from
17534	(readgram): here.
17535	Remove `action_flag', `rulelength', unused now.
17536
175372002-06-11  Akim Demaille  <akim@epita.fr>
17538
17539	* src/reader.c (grammar_current_rule_prec_set).
17540	(grammar_current_rule_check): New, eved out from...
17541	(readgram): here.
17542	Remove `xaction', `first_rhs': useless.
17543	* tests/input.at (Type clashes): New.
17544	* tests/existing.at (GNU Cim Grammar): Adjust.
17545
175462002-06-11  Akim Demaille  <akim@epita.fr>
17547
17548	* src/reader.c (grammar_midrule_action): New, Eved out from
17549	(readgram): here.
17550
175512002-06-11  Akim Demaille  <akim@epita.fr>
17552
17553	* src/reader.c (grammar_rule_begin, previous_rule, current_rule):
17554	New.
17555	(readgram): Use them as replacement of inlined code, crule and
17556	crule1.
17557
175582002-06-11  Akim Demaille  <akim@epita.fr>
17559
17560	* src/reader.c (grammar_end, grammar_symbol_append): New.
17561	(readgram): Use them.
17562	Make the use of `p' as local as possible.
17563
175642002-06-10  Akim Demaille  <akim@epita.fr>
17565
17566	GCJ's parser requires the tokens to be defined before the prologue.
17567
17568	* data/bison.simple: Output the token definition before the user's
17569	prologue.
17570	* tests/regression.at (Braces parsing, Duplicate string)
17571	(Mixing %token styles): Check the output from bison.
17572	(Early token definitions): New.
17573
175742002-06-10  Akim Demaille  <akim@epita.fr>
17575
17576	* src/symtab.c (symbol_user_token_number_set): Don't complain when
17577	assigning twice the same user number to a token, so that we can
17578	use it in...
17579	* src/lex.c (lex): here.
17580	Also use `symbol_class_set' instead of hand written code.
17581	* src/reader.c (parse_assoc_decl): Likewise.
17582
175832002-06-10  Akim Demaille  <akim@epita.fr>
17584
17585	* src/symtab.c, src/symtab.c (symbol_class_set)
17586	(symbol_user_token_number_set): New.
17587	* src/reader.c (parse_token_decl): Use them.
17588	Use a switch instead of ifs.
17589	Use a single argument.
17590
175912002-06-10  Akim Demaille  <akim@epita.fr>
17592
17593	Remove `%thong' support as it is undocumented, unused, duplicates
17594	`%token's job, and creates useless e-mail traffic with people who
17595	want to know what it is, why it is undocumented, unused, and
17596	duplicates `%token's job.
17597
17598	* src/reader.c (parse_thong_decl): Remove.
17599	* src/options.c (option_table): Remove "thong".
17600	* src/lex.h (tok_thong): Remove.
17601
176022002-06-10  Akim Demaille  <akim@epita.fr>
17603
17604	* src/symtab.c, src/symtab.c (symbol_type_set)
17605	(symbol_precedence_set): New.
17606	* src/reader.c (parse_type_decl, parse_assoc_decl): Use them.
17607	(value_components_used): Remove, unused.
17608
176092002-06-09  Akim Demaille  <akim@epita.fr>
17610
17611	Move symbols handling code out of the reader.
17612
17613	* src/reader.h, src/reader.c (errtoken, undeftoken, eoftoken)
17614	(axiom): Move to...
17615	* src/symtab.h, src/symtab.c: here.
17616
17617	* src/gram.c (start_symbol): Remove: use startsymbol->number.
17618	* src/reader.c (startval): Rename as...
17619	* src/symtab.h, src/symtab.c (startsymbol): this.
17620	* src/reader.c: Adjust.
17621
17622	* src/reader.c (symbol_check_defined, symbol_make_alias)
17623	(symbol_check_alias_consistence, symbol_pack, symbol_translation)
17624	(token_translations_init)
17625	Move to...
17626	* src/symtab.c: here.
17627	* src/reader.c (packsymbols): Move to...
17628	* src/symtab.h, src/symtab.c (symbols_pack): here.
17629	* src/symtab.h, src/symtab.c (symbol_make_alias): Takes SYMVAL as
17630	argument.
17631
176322002-06-03  Akim Demaille  <akim@epita.fr>
17633
17634	* src/muscle_tab.c (muscle_insert, muscle_find): Declarations,
17635	then statements.
17636
176372002-06-03  Akim Demaille  <akim@epita.fr>
17638
17639	* src/muscle_tab.c (muscle_find, muscle_insert): Don't initialize
17640	structs with non literals.
17641	* src/scan-skel.l: never-interactive.
17642	* src/conflicts.c (enum conflict_resolution_e): No trailing
17643	comma.
17644	* src/getargs.c (usage): Split long literal strings.
17645	Reported by Hans Aberg.
17646
176472002-05-28  Akim Demaille  <akim@epita.fr>
17648
17649	* data/bison.c++: Use C++ ostreams.
17650	(cdebug_): New member.
17651
176522002-05-28  Akim Demaille  <akim@epita.fr>
17653
17654	* src/output.c (output_skeleton): Be sure to allocate enough room
17655	for `/' _and_ for `\0' in full_skeleton.
17656
176572002-05-28  Akim Demaille  <akim@epita.fr>
17658
17659	* data/bison.c++: Catch up with bison.simple:
17660	2002-05-24  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
17661	and Paul Eggert  <eggert@twinsun.com>: `error' handing.
17662	2002-05-26  Akim Demaille  <akim@epita.fr>: stos_, token_number_,
17663	and popping traces.
17664
176652002-05-27  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
17666
17667	* src/output.c (output_skeleton): Put an explicit path in front of
17668	the skeleton file name, rather than relying on the -I directory,
17669	to partially alleviate effects of having a skeleton file lying around
17670	in the current directory.
17671
176722002-05-27  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
17673
17674	* src/conflicts.c (log_resolution): Correct typo:
17675	obstack_printf should be obstack_fgrow1.
17676
176772002-05-26  Akim Demaille  <akim@epita.fr>
17678
17679	* src/state.h (state_t): `solved_conflicts' is a new member.
17680	* src/LR0.c (new_state): Set it to 0.
17681	* src/conflicts.h, src/conflicts.c (print_conflicts)
17682	(free_conflicts, solve_conflicts): Rename as...
17683	(conflicts_print, conflicts_free, conflicts_solve): these.
17684	Adjust callers.
17685	* src/conflicts.c (enum conflict_resolution_e)
17686	(solved_conflicts_obstack): New, used by...
17687	(log_resolution): this.
17688	Adjust to attach the conflict resolution to each state.
17689	Complete the description with the precedence/associativity
17690	information.
17691	(resolve_sr_conflict): Adjust.
17692	* src/print.c (print_state): Output its solved_conflicts.
17693	* tests/conflicts.at (Unresolved SR Conflicts)
17694	(Solved SR Conflicts): Exercise --report=all.
17695
176962002-05-26  Akim Demaille  <akim@epita.fr>
17697
17698	* src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c,
17699	* src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
17700	* src/reader.c, src/reduce.c, src/state.h, src/symtab.h
17701	(token_number_t, item_number_as_token_number)
17702	(token_number_as_item_number, muscle_insert_token_number_table):
17703	Rename as...
17704	(symbol_number_t, item_number_as_symbol_number)
17705	(symbol_number_as_item_number, muscle_insert_symbol_number_table):
17706	these, since it is more appropriate.
17707
177082002-05-26  Akim Demaille  <akim@epita.fr>
17709
17710	* tests/calc.at (AT_CHECK_CALC): Adjust: there are now additional
17711	`Error:' lines.
17712	* data/bison.simple (yystos) [YYDEBUG]: New.
17713	(yyparse) [YYDEBUG]: Display the symbols which are popped during
17714	error recovery.
17715	* tests/regression.at (Web2c Actions): Adjust: yystos is output now.
17716
177172002-05-25  Akim Demaille  <akim@epita.fr>
17718
17719	* doc/bison.texinfo (Debugging): Split into...
17720	(Tracing): this new section, its former contents, and...
17721	(Understanding): this new section.
17722	* src/getargs.h, src/getargs.c (verbose_flag): Remove, replaced
17723	by...
17724	(report_flag): this.
17725	Adjust all dependencies.
17726	(report_args, report_types, report_argmatch): New.
17727	(usage, getargs): Report/support -r, --report.
17728	* src/options.h
17729	(struct option_table_struct): Rename as..,
17730	(struct option_table_s): this.
17731	Rename the `set_flag' member to `flag' to match with getopt_long's
17732	struct.
17733	* src/options.c (option_table): Split verbose into an entry for
17734	%verbose, and another for --verbose.
17735	Support --report/-r, so remove -r from the obsolete --raw.
17736	* src/print.c: Attach full item sets and lookaheads reports to
17737	report_flag instead of trace_flag.
17738	* lib/argmatch.h, lib/argmatch.c: New, from Fileutils 4.1.
17739
177402002-05-24  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
17741	and Paul Eggert  <eggert@twinsun.com>
17742
17743	* data/bison.simple (yyparse): Correct error handling to conform to
17744	POSIX and yacc.  Specifically, after syntax error is discovered,
17745	do not reduce further before shifting the error token.
17746	Clean up the code a bit by removing the labels yyerrdefault,
17747	yyerrhandle, yyerrpop.
17748	* NEWS: Document the above.
17749
177502002-05-20  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
17751
17752	* data/bison.simple (yyr1): Don't use yy_token_number_type as element
17753	type; it isn't always big enough, since it doesn't necessarily
17754	include non-terminals.
17755	(yytranslate): Expand definition of yy_token_number_type, so that
17756	the latter can be removed.
17757	(yy_token_number_type): Remove, only one use.
17758	* data/bison.c++ (r1_): Parallel change to yyr1 in bison.simple---
17759	don't use TokenNumberType as element type.
17760
17761	* tests/regression.at: Modify expected output to agree with change
17762	to yyr1 and yytranslate.
17763
177642002-05-13  Florian Krohm  <florian@edamail.fishkill.ibm.com>
17765
17766	* src/reader.c (parse_action): Use copy_character instead of
17767	obstack_1grow.
17768
177692002-05-13  Akim Demaille  <akim@epita.fr>
17770
17771	* tests/regression.at (Token definitions): Prototype yylex and
17772	yyerror.
17773
177742002-05-12  Paul Hilfinger  <Hilfinger@CS.Berkeley.EDU>
17775
17776	* src/scan-skel.l: Correct off-by-one error in handling of __oline__.
17777	* data/bison.simple (b4_sint_type, b4_uint_type): Correct to reflect
17778	32-bit arithmetic.
17779	* data/bison.c++ (b4_sint_type, b4_uint_type): Ditto.
17780
177812002-05-07  Akim Demaille  <akim@epita.fr>
17782
17783	* tests/synclines.at: Be sure to prototype yylex and yyerror to
17784	avoid GCC warnings.
17785
177862002-05-07  Akim Demaille  <akim@epita.fr>
17787
17788	Kill GCC warnings.
17789
17790	* src/reduce.c (nonterminals_reduce): Don't loop over RITEM: loop
17791	over the RHS of each rule.
17792	* src/gram.h, src/gram.c (nritems): Is `unsigned int', not int.
17793	* src/state.h (state_t): Member `nitems' is unsigned short.
17794	* src/LR0.c (get_state): Adjust.
17795	* src/reader.c (packgram): Likewise.
17796	* src/output.c (GENERATE_MUSCLE_INSERT_TABLE): `max' is of type
17797	`Type'.
17798	(muscle_insert_int_table): Remove, unused.
17799	(prepare_rules): Remove `max'.
17800
178012002-05-06  Akim Demaille  <akim@epita.fr>
17802
17803	* src/closure.c (print_firsts): Display of the symbol tags.
17804	(bitmatrix_print): Move to...
17805	* lib/bitsetv-print.h, lib/bitsetv-print.c (bitsetv_matrix_dump):
17806	here.
17807	* tests/sets.at (Nullable, Broken Closure, Firsts): Adjust.
17808
178092002-05-06  Akim Demaille  <akim@epita.fr>
17810
17811	* src/muscle_tab.c (muscle_m4_output): Must return TRUE for
17812	hash_do_for_each.
17813
178142002-05-06  Akim Demaille  <akim@epita.fr>
17815
17816	* src/LR0.c (new_state, get_state): Instead of using the global
17817	`kernel_size' and `kernel_base', have two new arguments:
17818	`core_size' and `core'.
17819	Adjust callers.
17820
178212002-05-06  Akim Demaille  <akim@epita.fr>
17822
17823	* src/reader.c (packgram): No longer end `ritem' with a 0
17824	sentinel: it is not used.
17825
178262002-05-05  Akim Demaille  <akim@epita.fr>
17827
17828	New experimental feature: display the lookaheads in the report and
17829	graph.
17830
17831	* src/print (print_core): When --trace-flag, display the rules
17832	lookaheads.
17833	* src/print_graph.c (print_core): Likewise.
17834	Swap the arguments.
17835	Adjust caller.
17836
178372002-05-05  Akim Demaille  <akim@epita.fr>
17838
17839	* tests/torture.at (Many lookaheads): New test.
17840
178412002-05-05  Akim Demaille  <akim@epita.fr>
17842
17843	* src/output.c (GENERATE_OUTPUT_TABLE): Replace with...
17844	(GENERATE_MUSCLE_INSERT_TABLE): this.
17845	(output_int_table, output_unsigned_int_table, output_short_table)
17846	(output_token_number_table, output_item_number_table): Replace with...
17847	(muscle_insert_int_table, muscle_insert_unsigned_int_table)
17848	(muscle_insert_short_table, muscle_insert_token_number_table)
17849	(muscle_insert_item_number_table): these.
17850	Adjust all callers.
17851	(prepare_tokens): Don't free `translations', since...
17852	* src/reader.h, src/reader.c (grammar_free): do it.
17853	Move to...
17854	* src/gram.h, src/gram.c (grammar_free): here.
17855	* data/bison.simple, data/bison.c++: b4_token_number_max is now
17856	b4_translate_max.
17857
178582002-05-05  Akim Demaille  <akim@epita.fr>
17859
17860	* src/output.c (output_unsigned_int_table): New.
17861	(prepare_rules): `i' is unsigned.
17862	`prhs', `rline', `r2' are unsigned int.
17863	Rename muscle `rhs_number_max' as `rhs_max'.
17864	Output muscles `prhs_max', `rline_max', and `r2_max'.
17865	Free rline and r1.
17866	* data/bison.simple, data/bison.c++: Adjust to use these muscles
17867	to compute types instead of constant types.
17868	* tests/regression.at (Web2c Actions): Adjust.
17869
178702002-05-04  Akim Demaille  <akim@epita.fr>
17871
17872	* src/symtab.h (SALIAS, SUNDEF): Rename as...
17873	(USER_NUMBER_ALIAS, USER_NUMBER_UNDEFINED): these.
17874	Adjust dependencies.
17875	* src/output.c (token_definitions_output): Be sure not to output a
17876	`#define 'a'' when fed with `%token 'a' "a"'.
17877	* tests/regression.at (Token definitions): New.
17878
178792002-05-03  Paul Eggert  <eggert@twinsun.com>
17880
17881	* data/bison.simple (b4_token_defines): Also define YYTOKENTYPE
17882	for K&R C.
17883
178842002-05-03  gettextize  <bug-gnu-gettext@gnu.org>
17885
17886	* Makefile.am (SUBDIRS): Remove intl.
17887	(EXTRA_DIST): Add config/config.rpath.
17888
178892002-05-03  Akim Demaille  <akim@epita.fr>
17890
17891	* data/bison.simple (m4_if): Don't output empty enums.
17892	And actually, output valid enum definitions :(.
17893
178942002-05-03  Akim Demaille  <akim@epita.fr>
17895
17896	* configure.bat: Remove, completely obsolete.
17897	* Makefile.am (EXTRA_DIST): Adjust.
17898	Don't distribute config.rpath...
17899	* config/Makefile.am (EXTRA_DIST): Do it.
17900
179012002-05-03  Akim Demaille  <akim@epita.fr>
17902
17903	* configure.in (GETTEXT_VERSION): New.
17904	Suggested by Bruno Haible for the forthcoming Gettext 0.10.3.
17905
179062002-05-03  Akim Demaille  <akim@epita.fr>
17907
17908	* data/bison.simple (b4_token_enum): New.
17909	(b4_token_defines): Use it to output tokens both as #define and
17910	enums.
17911	Suggested by Paul Eggert.
17912	* src/output.c (token_definitions_output): Don't output spurious
17913	white spaces.
17914
179152002-05-03  Akim Demaille  <akim@epita.fr>
17916
17917	* data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
17918
179192002-05-02  Robert Anisko  <robert@lrde.epita.fr>
17920
17921	* data/bison.c++: Adapt expansion of $s and @s to the C++ parser.
17922	Update the stack class, give a try to deque as the default container.
17923
179242002-05-02  Akim Demaille  <akim@epita.fr>
17925
17926	* data/bison.simple (yyparse): Do not implement @$ = @1.
17927	(YYLLOC_DEFAULT): Adjust to do it.
17928	* doc/bison.texinfo (Location Default Action): Fix.
17929
179302002-05-02  Akim Demaille  <akim@epita.fr>
17931
17932	* src/reader.c (parse_braces): Merge into...
17933	(parse_action): this.
17934
179352002-05-02  Akim Demaille  <akim@epita.fr>
17936
17937	* configure.in (ALL_LINGUAS): Remove.
17938	* po/LINGUAS, hr.po: New.
17939
179402002-05-02  Akim Demaille  <akim@epita.fr>
17941
17942	Remove the so called hairy (semantic) parsers.
17943
17944	* src/system.h (EXT_GUARD_C, EXT_STYPE_H): Remove.
17945	* src/gram.h, src/gram.c (semantic_parser): Remove.
17946	(rule_t): Remove the guard and guard_line members.
17947	* src/lex.h (token_t): remove tok_guard.
17948	* src/options.c (option_table): Remove %guard and %semantic_parser
17949	support.
17950	* src/output.c, src/output.h (guards_output): Remove.
17951	(prepare): Adjust.
17952	(token_definitions_output): Don't output the `T'
17953	tokens (???).
17954	(output_skeleton): Don't output the guards.
17955	* src/files.c, src/files.c (attrsfile): Remove.
17956	* src/reader.c (symbol_list): Remove the guard and guard_line
17957	members.
17958	Adjust dependencies.
17959	(parse_guard): Remove.
17960	* data/bison.hairy: Remove.
17961	* doc/bison.texinfo (Environment Variables): Remove occurrences of
17962	BISON_HAIRY.
17963
179642002-05-02  Akim Demaille  <akim@epita.fr>
17965
17966	* src/reader.c (copy_at, copy_dollarm parse_braces, parse_action)
17967	(parse_guard): Rename the formal argument `stack_offset' as
17968	`rule_length', which is more readable.
17969	Adjust callers.
17970	(copy_at, copy_dollar): Instead of outputting the hard coded
17971	values of $$, $n and so forth, output invocation to b4_lhs_value,
17972	b4_lhs_location, b4_rhs_value, and b4_rhs_location.
17973	Note: this patch partially drops `semantic-parser' support: it
17974	always does `rule_length - n', where semantic parsers ought to
17975	always use `-n'.
17976	* data/bison.simple, data/bison.c++ (b4_lhs_value)
17977	(b4_lhs_location, b4_rhs_value, and b4_rhs_location: New.
17978
179792002-05-02  Akim Demaille  <akim@epita.fr>
17980
17981	* configure.in (AC_INIT): Bump to 1.49b.
17982	(AM_INIT_AUTOMAKE): Short invocation.
17983
179842002-05-02  Akim Demaille  <akim@epita.fr>
17985
17986	Version 1.49a.
17987
179882002-05-01  Akim Demaille  <akim@epita.fr>
17989
17990	* src/skeleton.h: Remove.
17991
179922002-05-01  Akim Demaille  <akim@epita.fr>
17993
17994	* src/skeleton.h: Fix the #endif.
17995	Reported by Magnus Fromreide.
17996
179972002-04-26  Paul Eggert  <eggert@twinsun.com>
17998
17999	* data/bison.simple (YYSTYPE_IS_TRIVIAL, YYLTYPE_IS_TRIVIAL):
18000	Define if we define YYSTYPE and YYLTYPE, respectively.
18001	(YYCOPY): Fix [] quoting problem in the non-GCC case.
18002
180032002-04-25  Robert Anisko  <robert@lrde.epita.fr>
18004
18005	* src/scan-skel.l: Postprocess quadrigraphs.
18006
18007	* src/reader.c (copy_character): New function, used to output
18008	single characters while replacing `[' and `]' with quadrigraphs, to
18009	avoid troubles with M4 quotes.
18010	(copy_comment): Output characters with copy_character.
18011	(read_additionnal_code): Likewise.
18012	(copy_string2): Likewise.
18013	(copy_definition): Likewise.
18014
18015	* tests/calc.at: Exercise M4 quoting.
18016
180172002-04-25  Akim Demaille  <akim@epita.fr>
18018
18019	* tests/sets.at (AT_EXTRACT_SETS): Sed portability issue: no space
18020	between `!' and the command.
18021	Reported by Paul Eggert.
18022
180232002-04-24  Robert Anisko  <robert@lrde.epita.fr>
18024
18025	* tests/calc.at: Exercise prologue splitting.
18026
18027	* data/bison.simple, data/bison.c++: Use `b4_pre_prologue' and
18028	`b4_post_prologue' instead of `b4_prologue'.
18029
18030	* src/output.c (prepare): Add the `pre_prologue' and `post_prologue'
18031	muscles.
18032	(output): Free pre_prologue_obstack and post_prologue_obstack.
18033	* src/files.h, src/files.c (attrs_obstack): Remove.
18034	(pre_prologue_obstack, post_prologue_obstack): New.
18035	* src/reader.c (copy_definition): Add a parameter to specify the
18036	obstack to fill, instead of using attrs_obstack unconditionally.
18037	(read_declarations): Pass pre_prologue_obstack to copy_definition if
18038	`%union' has not yet been seen, pass post_prologue_obstack otherwise.
18039
180402002-04-23  Paul Eggert  <eggert@twinsun.com>
18041
18042	* data/bison.simple: Remove unnecessary commentary and white
18043	space differences from 1_29-branch.
18044	Depend on YYERROR_VERBOSE, not defined (YYERROR_VERBOSE).
18045
18046	(union yyalloc, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYCOPY,
18047	YYSTACK_RELOCATE): Do not define if yyoverflow is defined, or
18048	if this is a C++ parser and YYSTYPE or YYLTYPE has nontrivial
18049	constructors or destructors.
18050
18051	(yyparse) [! defined YYSTACK_RELOCATE]: Do not relocate the stack.
18052
180532002-04-23  Akim Demaille  <akim@epita.fr>
18054
18055	* tests/sets.at (AT_EXTRACT_SETS): Don't use 8 char long sed labels.
18056	* tests/synclines.at (AT_TEST_SYNCLINE): Be robust to GCC's
18057	location with columns.
18058	* tests/conflicts.at (%nonassoc and eof): Don't use `error.h'.
18059	All reported by Paul Eggert.
18060
180612002-04-22  Akim Demaille  <akim@epita.fr>
18062
18063	* src/reduce.c (dump_grammar): Move to...
18064	* src/gram.h, src/gram.c (grammar_dump): here.
18065	Be sure to separate long item numbers.
18066	Don't read the members of a rule's prec if its nil.
18067
180682002-04-22  Akim Demaille  <akim@epita.fr>
18069
18070	* src/output.c (table_size, table_grow): New.
18071	(MAXTABLE): Remove, replace uses with table_size.
18072	(pack_vector): Instead of dying when the table is too big, grow it.
18073
180742002-04-22  Akim Demaille  <akim@epita.fr>
18075
18076	* data/bison.simple (yyr1): Its type is that of a token number.
18077	* data/bison.c++ (r1_): Likewise.
18078	* tests/regression.at (Web2c Actions): Adjust.
18079
180802002-04-22  Akim Demaille  <akim@epita.fr>
18081
18082	* src/reader.c (token_translations_init): 256 is now the default
18083	value for the error token, i.e., it will be assigned another
18084	number if the user assigned 256 to one of her tokens.
18085	(reader): Don't force 256 to error.
18086	* doc/bison.texinfo (Symbols): Adjust.
18087	* tests/torture.at (AT_DATA_HORIZONTAL_GRAMMAR)
18088	(AT_DATA_TRIANGULAR_GRAMMAR): Number the tokens as 1, 2, 3
18089	etc. instead of 10, 20, 30 (which was used to `jump' over error
18090	(256) and undefined (2)).
18091
180922002-04-22  Akim Demaille  <akim@epita.fr>
18093
18094	Propagate more token_number_t.
18095
18096	* src/gram.h (token_number_as_item_number)
18097	(item_number_as_token_number): New.
18098	* src/output.c (GENERATE_OUTPUT_TABLE): New.
18099	Use it to create output_item_number_table and
18100	output_token_number_table.
18101	* src/LR0.c, src/derives.c, src/gram.c, src/gram.h, src/lalr.c,
18102	* src/lex.c, src/nullable.c, src/output.c, src/print.c,
18103	* src/print_graph.c, src/reader.c, src/reduce.c, src/state.h,
18104	* src/symtab.c, src/symtab.h: Use token_number_t instead of shorts.
18105
181062002-04-22  Akim Demaille  <akim@epita.fr>
18107
18108	* src/output.h, src/output.c (get_lines_number): Remove.
18109
181102002-04-19  Akim Demaille  <akim@epita.fr>
18111
18112	* doc/bison.texinfo (Actions): Make clear that `|' is not the same
18113	as Lex/Flex'.
18114	(Debugging): More details about enabling the debugging features.
18115	(Table of Symbols): Describe $$, $n, @$, and @n.
18116	Suggested by Tim Josling.
18117
181182002-04-19  Akim Demaille  <akim@epita.fr>
18119
18120	* doc/bison.texinfo: Remove the uses of the obsolete @refill.
18121
181222002-04-10  Akim Demaille  <akim@epita.fr>
18123
18124	* src/system.h: Rely on HAVE_LIMITS_H.
18125	Suggested by Paul Eggert.
18126
181272002-04-09  Akim Demaille  <akim@epita.fr>
18128
18129	* tests/calc.at (_AT_CHECK_CALC_ERROR): Receive as argument the
18130	full stderr, and strip it according to the bison options, instead
18131	of composing the error message from different bits.
18132	This makes it easier to check for several error messages.
18133	Adjust all the invocations.
18134	Add an invocation exercising the error token.
18135	Add an invocation demonstrating a stupid error message.
18136	(_AT_DATA_CALC_Y): Follow the GCS: initial column is 1, not 0.
18137	Adjust the tests.
18138	Error message are for stderr, not stdout.
18139
181402002-04-09  Akim Demaille  <akim@epita.fr>
18141
18142	* src/gram.h, src/gram.c (error_token_number): Remove, use
18143	errtoken->number.
18144	* src/reader.c (reader): Don't specify the user token number (2)
18145	for $undefined, as it uselessly prevents using it.
18146	* src/gram.h (token_number_t): Move to...
18147	* src/symtab.h: here.
18148	(state_t.number): Is a token_number_t.
18149	* src/print.c, src/reader.c: Use undeftoken->number instead of
18150	hard coded 2.
18151	(Even though this 2 is not the same as above: the number of the
18152	undeftoken remains being 2, it is its user token number which
18153	might not be 2).
18154	* src/output.c (prepare_tokens): Rename the `maxtok' muscle with
18155	`user_token_number_max'.
18156	Output `undef_token_number'.
18157	* data/bison.simple, data/bison.c++: Use them.
18158	Be sure to map invalid yylex return values to
18159	`undef_token_number'.  This saves us from gratuitous SEGV.
18160
18161	* tests/conflicts.at (Solved SR Conflicts)
18162	(Unresolved SR Conflicts): Adjust.
18163	* tests/regression.at (Web2c Actions): Adjust.
18164
181652002-04-08  Akim Demaille  <akim@epita.fr>
18166
18167	* data/bison.c++: s/b4_item_number_max/b4_rhs_number_max/.
18168	Adding #line.
18169	Remove the duplicate `typedefs'.
18170	(RhsNumberType): Fix the declaration and various other typos.
18171	Use __ofile__.
18172	* data/bison.simple: Use __ofile__.
18173	* src/scan-skel.l: Handle __ofile__.
18174
181752002-04-08  Akim Demaille  <akim@epita.fr>
18176
18177	* src/gram.h (item_number_t): New, the type of item numbers in
18178	RITEM.  Note that it must be able to code symbol numbers as
18179	positive number, and the negation of rule numbers as negative
18180	numbers.
18181	Adjust all dependencies (pretty many).
18182	* src/reduce.c (rule): Remove this `short *' pointer: use
18183	item_number_t.
18184	* src/system.h (MINSHORT, MAXSHORT): Remove.
18185	Include `limits.h'.
18186	Adjust dependencies to using SHRT_MAX and SHRT_MIN.
18187	(shortcpy): Remove.
18188	(MAXTABLE): Move to...
18189	* src/output.c (MAXTABLE): here.
18190	(prepare_rules): Use output_int_table to output rhs.
18191	* data/bison.simple, data/bison.c++: Adjust.
18192	* tests/torture.at (Big triangle): Move the limit from 254 to
18193	500.
18194	* tests/regression.at (Web2c Actions): Ajust.
18195
18196	Trying with bigger grammars shows various phenomena: at 3000 (28Mb
18197	of grammar file) bison is killed by my system, at 2000 (12Mb) bison
18198	passes, but produces negative #line number, once fixed, GCC is
18199	killed while compiling 14Mb, at 1500 (6.7 Mb of grammar, 8.2Mb of
18200	C), it passes.
18201	* src/state.h (state_h): Code input lines on ints, not shorts.
18202
182032002-04-08  Akim Demaille  <akim@epita.fr>
18204
18205	* src/reduce.c (reduce_grammar): First reduce the nonterminals,
18206	and then the grammar.
18207
182082002-04-08  Akim Demaille  <akim@epita.fr>
18209
18210	* src/system.h: No longer using strndup.
18211
182122002-04-07  Akim Demaille  <akim@epita.fr>
18213
18214	* src/muscle_tab.h (MUSCLE_INSERT_LONG_INT): New.
18215	* src/output.c (output_table_data): Return the longest number.
18216	(prepare_tokens): Output `token_number_max').
18217	* data/bison.simple, data/bison.c++ (b4_sint_type, b4_uint_type):
18218	New.
18219	Use them to define yy_token_number_type/TokenNumberType.
18220	Use this type for yytranslate.
18221	* tests/torture.at (Big triangle): Push the limit from 124 to
18222	253.
18223	* tests/regression.at (Web2c Actions): Adjust.
18224
182252002-04-07  Akim Demaille  <akim@epita.fr>
18226
18227	* tests/torture.at (Big triangle): New.
18228	(GNU AWK Grammar, GNU Cim Grammar): Move to...
18229	* tests/existing.at: here.
18230
182312002-04-07  Akim Demaille  <akim@epita.fr>
18232
18233	* src/gram.h, src/gram.c (nitems): Remove, it is an alias of
18234	nritems.
18235	Adjust dependencies.
18236
182372002-04-07  Akim Demaille  <akim@epita.fr>
18238
18239	* src/reader.c: Normalize increments to prefix form.
18240
182412002-04-07  Akim Demaille  <akim@epita.fr>
18242
18243	* src/reader.c, symtab.c: Remove debugging code.
18244
182452002-04-07  Akim Demaille  <akim@epita.fr>
18246
18247	Rename all the `bucket's as `symbol_t'.
18248
18249	* src/gram.c, src/gram.h, src/lex.c, src/lex.h, src/output.c,
18250	* src/reader.c, src/reader.h, src/reduce.c, src/state.h,
18251	* src/symtab.c, src/symtab.h (bucket): Rename as...
18252	(symbol_t): this.
18253	(symbol_list_new, bucket_check_defined, bucket_make_alias)
18254	(bucket_check_alias_consistence, bucket_pack, bucket_translation)
18255	(bucket_new, bucket_free, hash_compare_bucket, hash_bucket)
18256	(buckets_new, buckets_free, buckets_do): Rename as...
18257	(symbol_list_new, symbol_check_defined, symbol_make_alias)
18258	(symbol_check_alias_consistence, symbol_pack, symbol_translation)
18259	(symbol_new, symbol_free, hash_compare_symbol_t, hash_symbol_t)
18260	(symbols_new, symbols_free, symbols_do): these.
18261
182622002-04-07  Akim Demaille  <akim@epita.fr>
18263
18264	Use lib/hash for the symbol table.
18265
18266	* src/gram.c (ntokens): Initialize to 1, to reserve a slot for
18267	EOF.
18268	* src/lex.c (lex): Set the `number' member of new terminals.
18269	* src/reader.c (bucket_check_defined, bucket_make_alias)
18270	(bucket_check_alias_consistence, bucket_translation): New.
18271	(reader, grammar_free, readgram, token_translations_init)
18272	(packsymbols): Adjust.
18273	(reader): Number the predefined tokens.
18274	* src/reduce.c (inaccessable_symbols): Just use hard coded numbers
18275	for predefined tokens.
18276	* src/symtab.h (bucket): Remove all the hash table related
18277	members.
18278	* src/symtab.c (symtab): Replace by...
18279	(bucket_table): this.
18280	(bucket_new, bucket_free, hash_compare_bucket, hash_bucket)
18281	(buckets_new, buckets_do): New.
18282
182832002-04-07  Akim Demaille  <akim@epita.fr>
18284
18285	* src/gram.c (nitems, nrules, nsyms, ntokens, nvars, nritems)
18286	(start_symbol, max_user_token_number, semantic_parser)
18287	(error_token_number): Initialize.
18288	* src/reader.c (grammar, start_flag, startval, typed, lastprec):
18289	Initialize.
18290	(reader): Don't.
18291	(errtoken, eoftoken, undeftoken, axiom): Extern.
18292
182932002-04-07  Akim Demaille  <akim@epita.fr>
18294
18295	* src/gram.h (rule_s): prec and precsym are now pointers
18296	to the bucket giving the priority/associativity.
18297	Member `associativity' removed: useless.
18298	* src/reduce.c, src/conflicts.c: Adjust.
18299
183002002-04-07  Akim Demaille  <akim@epita.fr>
18301
18302	* src/lalr.c, src/LR0.c, src/closure.c, src/gram.c, src/reduce.c:
18303	Properly escape the symbols' TAG when outputting them.
18304
183052002-04-07  Akim Demaille  <akim@epita.fr>
18306
18307	* src/lalr.h (LA): Is a bitsetv, not bitset*.
18308
183092002-04-07  Akim Demaille  <akim@epita.fr>
18310
18311	* src/lalr.h, src/lalr.c (LAruleno): Replace with...
18312	(LArule): this, which is an array to rule_t*.
18313	* src/print.c, src/conflicts.c: Adjust.
18314
183152002-04-07  Akim Demaille  <akim@epita.fr>
18316
18317	* src/gram.h (rule_t): Rename `number' as `user_number'.
18318	`number' is a new member.
18319	Adjust dependencies.
18320	* src/reduce.c (reduce_grammar_tables): Renumber rule_t.number.
18321
183222002-04-07  Akim Demaille  <akim@epita.fr>
18323
18324	As a result of the previous patch, it is no longer needed
18325	to reorder ritem itself.
18326
18327	* src/reduce.c (reduce_grammar_tables): Don't sort RITEM.
18328
183292002-04-07  Akim Demaille  <akim@epita.fr>
18330
18331	Be sure never to walk through RITEMS, but use only data related to
18332	the rules themselves. RITEMS should be banished.
18333
18334	* src/output.c (output_token_translations): Rename as...
18335	(prepare_tokens): this.
18336	In addition to `translate', prepare the muscles `tname' and
18337	`toknum', which were handled by...
18338	(output_rule_data): this.
18339	Remove, and move the remainder of its outputs into...
18340	(prepare_rules): this new routines, which also merges content from
18341	(output_gram): this.
18342	(prepare_rules): Be sure never to walk through RITEMS.
18343	(output_stos): Rename as...
18344	(prepare_stos): this.
18345	(output): Always invoke prepare_states, after all, just don't use it
18346	in the output if you don't need it.
18347
183482002-04-07  Akim Demaille  <akim@epita.fr>
18349
18350	* src/LR0.c (new_state): Display `nstates' as the name of the
18351	newly created state.
18352	Adjust to initialize first_state and last_state if needed.
18353	Be sure to distinguish the initial from the final state.
18354	(new_states): Create the itemset of the initial state, and use
18355	new_state.
18356	* src/closure.c (closure): Now that the initial state has its
18357	items properly set, there is no need for a special case when
18358	creating `ruleset'.
18359
18360	As a result, now the rule 0, reducing to $axiom, is visible in the
18361	outputs.  Adjust the test suite.
18362
18363	* tests/conflicts.at (Solved SR Conflicts)
18364	(Unresolved SR Conflicts): Adjust.
18365	* tests/regression.at (Web2c Report, Rule Line Numbers): Idem.
18366	* tests/conflicts.at (S/R in initial): New.
18367
183682002-04-07  Akim Demaille  <akim@epita.fr>
18369
18370	* src/LR0.c (allocate_itemsets): Don't loop over ritem: loop over
18371	the RHS of the rules.
18372	* src/output.c (output_gram): Likewise.
18373
183742002-04-07  Akim Demaille  <akim@epita.fr>
18375
18376	* src/gram.h (rule_t): `lhs' is now a pointer to the symbol's
18377	bucket.
18378	Adjust all dependencies.
18379	* src/reduce.c (nonterminals_reduce): Don't forget to renumber the
18380	`number' of the buckets too.
18381	* src/gram.h: Include `symtab.h'.
18382	(associativity): Move to...
18383	* src/symtab.h: here.
18384	No longer include `gram.h'.
18385
183862002-04-07  Akim Demaille  <akim@epita.fr>
18387
18388	* src/gram.h, src/gram.c (rules_rhs_length): New.
18389	(ritem_longest_rhs): Use it.
18390	* src/gram.h (rule_t): `number' is a new member.
18391	* src/reader.c (packgram): Set it.
18392	* src/reduce.c (reduce_grammar_tables): Move the useless rules at
18393	the end of `rules', and count them out of `nrules'.
18394	(reduce_output, dump_grammar): Adjust.
18395	* src/print.c (print_grammar): It is no longer needed to check for
18396	the usefulness of a rule, as useless rules are beyond `nrules + 1'.
18397	* tests/reduce.at (Reduced Automaton): New test.
18398
183992002-04-07  Akim Demaille  <akim@epita.fr>
18400
18401	* src/reduce.c (inaccessable_symbols): Fix a buglet: because of a
18402	lacking `+ 1' to nrules, Bison reported as useless a token if it
18403	was used solely to set the precedence of the last rule...
18404
184052002-04-07  Akim Demaille  <akim@epita.fr>
18406
18407	* data/bison.c++, data/bison.simple: Don't output the current file
18408	name in #line, to avoid useless diffs between two identical
18409	outputs under different names.
18410
184112002-04-07  Akim Demaille  <akim@epita.fr>
18412
18413	* src/closure.c, src/print.c, src/reader.c, src/reduce.c:
18414	Normalize loops to using `< nrules + 1', not `<= nrules'.
18415
184162002-04-07  Akim Demaille  <akim@epita.fr>
18417
18418	* TODO: Update.
18419
184202002-04-07  Akim Demaille  <akim@epita.fr>
18421
18422	* src/output.c, src/reader.c, src/symtab.c, src/symtab.h: Rename
18423	bucket.value as bucket.number.
18424
184252002-04-07  Akim Demaille  <akim@epita.fr>
18426
18427	* src/closure.c, src/derives.c, src/gram.h, src/lalr.c,
18428	* src/nullable.c, src/output.c, src/print.c, src/print_graph.c,
18429	* src/reader.c, src/reduce.c: Let rule_t.rhs point directly to the
18430	RHS, instead of being an index in RITEMS.
18431
184322002-04-04  Paul Eggert  <eggert@twinsun.com>
18433
18434	* doc/bison.texinfo: Update copyright date.
18435	(Rpcalc Lexer, Symbols, Token Decl): Don't assume ASCII.
18436	(Symbols): Warn about running Bison in one character set,
18437	but compiling and/or running in an incompatible one.
18438	Warn about character code 256, too.
18439
184402002-04-03  Paul Eggert  <eggert@twinsun.com>
18441
18442	* src/bison.data (YYSTACK_ALLOC): Depend on whether
18443	YYERROR_VERBOSE is nonzero, not whether it is defined.
18444
18445	Merge changes from bison-1_29-branch.
18446
184472002-03-20  Paul Eggert  <eggert@twinsun.com>
18448
18449	Merge fixes from Debian bison_1.34-1.diff.
18450
18451	* configure.in (AC_PREREQ): 2.53.
18452
184532002-03-20  Akim Demaille  <akim@epita.fr>
18454
18455	* src/conflicts.c (log_resolution): Argument `resolution' is const.
18456
184572002-03-19  Paul Eggert  <eggert@twinsun.com>
18458
18459	* src/bison.simple (YYCOPY): New macro.
18460	(YYSTACK_RELOCATE): Use it.
18461	Remove Type arg; no longer needed.  All callers changed.
18462	(yymemcpy): Remove; no longer needed.
18463
18464	* Makefile.am (AUTOMAKE_OPTIONS): 1.6.
18465	* doc/Makefile.am (AUTOMAKE_OPTIONS): Remove.
18466
184672002-03-19  Akim Demaille  <akim@epita.fr>
18468
18469	Test and fix the #line outputs.
18470
18471	* tests/atlocal.at (GCC): New.
18472	* tests/synclines.at (AT_TEST_SYNCLINE): New macro.
18473	(Prologue synch line, %union synch line, Postprologue synch line)
18474	(Action synch line, Epilogue synch line): New tests.
18475	* src/reader.c (parse_union_decl): Define the muscle stype_line.
18476	* data/bison.simple, data/bison.c++: Use it.
18477
184782002-03-19  Akim Demaille  <akim@epita.fr>
18479
18480	* tests/regression.at (%nonassoc and eof, Unresolved SR Conflicts)
18481	(Solved SR Conflicts, %expect not enough, %expect right)
18482	(%expect too much): Move to...
18483	* tests/conflicts.at: this new file.
18484
184852002-03-19  Akim Demaille  <akim@epita.fr>
18486
18487	* data/m4sugar/m4sugar.m4: Update from CVS Autoconf.
18488	* data/bison.simple, data/bison.c++: Handle the `#define' part, so
18489	that we can move to enums for instance.
18490	* src/output.c (token_definitions_output): Output a list of
18491	`token-name, token-number' instead of the #define.
18492	(output_skeleton): Name this list `b4_tokens', not `b4_tokendefs'.
18493
184942002-03-14  Akim Demaille  <akim@epita.fr>
18495
18496	Use Gettext 0.11.1.
18497
184982002-03-09  Robert Anisko  <robert@lrde.epita.fr>
18499
18500	* data/bison.c++: Make the user able to add members to the generated
18501	parser by subclassing.
18502
185032002-03-05  Robert Anisko  <robert@lrde.epita.fr>
18504
18505	* src/reader.c (read_additionnal_code): `c' should be an integer, not
18506	a character.
18507	Reported by Nicolas Tisserand and Nicolas Burrus.
18508
185092002-03-04  Robert Anisko  <robert@lrde.epita.fr>
18510
18511	* src/reader.c: Warn about lacking semi-colons, do not complain.
18512
185132002-03-04  Robert Anisko  <robert@lrde.epita.fr>
18514
18515	* data/bison.c++: Remove a debug line.
18516
185172002-03-04  Robert Anisko  <robert@lrde.epita.fr>
18518
18519	* data/bison.c++: Unmerge value as yylval and value as yyval.  Unmerge
18520	location as yylloc and location as yyloc.  Use YYLLOC_DEFAULT, and
18521	provide a default implementation.
18522
185232002-03-04  Akim Demaille  <akim@epita.fr>
18524
18525	* tests/input.at (Invalid $n, Invalid @n): Add the ending `;'.
18526	* tests/output.at (AT_CHECK_OUTPUT): Likewise.
18527	* tests/headers.at (AT_TEST_CPP_GUARD_H): Ditto.
18528	* tests/semantic.at (Parsing Guards): Similarly.
18529	* src/reader.at (readgram): Complain if the last rule is not ended
18530	with a semi-colon.
18531
185322002-03-04  Akim Demaille  <akim@epita.fr>
18533
18534	* src/warshall.h, src/warshall.c (bitmatrix_print): Move to...
18535	* src/closure.c: here.
18536	(set_firsts): Use bitsetv_reflexive_transitive_closure instead of
18537	RTC.
18538	* src/warshall.h, src/warshall.c: Remove.
18539	* tests/sets.at (Broken Closure): Adjust.
18540
185412002-03-04  Akim Demaille  <akim@epita.fr>
18542
18543	* src/output.c (output_skeleton): tempdir is const.
18544	bytes_read is unused.
18545
185462002-03-04  Akim Demaille  <akim@epita.fr>
18547
18548	* lib/bbitset.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c,
18549	* lib/bitsetv.h, lib/ebitset.c, lib/lbitset.c, lib/sbitset.c:
18550	Update.
18551	From Michael Hayes.
18552
185532002-03-04  Akim Demaille  <akim@epita.fr>
18554
18555	* src/closure.c (closure): `r' is unused.
18556
185572002-03-04  Akim Demaille  <akim@epita.fr>
18558
18559	* tests/sets.at (Broken Closure): Add the ending `;'.
18560	* src/reader.at (readgram): Complain if a rule is not ended with a
18561	semi-colon.
18562
185632002-03-04  Akim Demaille  <akim@epita.fr>
18564
18565	* src/conflicts.c (set_conflicts): Use bitset_disjoint_p.
18566	(count_sr_conflicts): Use bitset_count.
18567	* src/reduce.c (inaccessable_symbols): Ditto.
18568	(bits_size): Remove.
18569	* src/warshall.h, src/warshall.c: Convert to bitsetv.
18570
185712002-03-04  Akim Demaille  <akim@epita.fr>
18572
18573	* src/closure.c, src/conflicts.c, src/lalr.c, src/print.c,
18574	* src/reduce.c: Remove the `bitset_zero's following the
18575	`bitset_create's, as now it is performed by the latter.
18576
185772002-03-04  Akim Demaille  <akim@epita.fr>
18578
18579	* lib/bitset.c, lib/bitset.h, lib/bitsetv.c, lib/bitsetv.h,
18580	* lib/ebitset.c, lib/ebitset.h, lib/lbitset.c, lib/lbitset.h,
18581	* lib/sbitset.c, lib/sbitset.h, lib/bbitset.h: Update from the
18582	latest sources from Michael.
18583
185842002-03-04  Akim Demaille  <akim@epita.fr>
18585
18586	* src/output.c (output): Don't free the grammar.
18587	* src/reader.c (grammar_free): New.
18588	* src/main.c (main): Call it and don't free symtab here.
18589
185902002-03-04  Akim Demaille  <akim@epita.fr>
18591
18592	* src/lex.c (parse_percent_token): Be sure to 0-end token_buffer
18593	before returning.
18594	Reported by Benoit Perrot.
18595
185962002-03-04  Akim Demaille  <akim@epita.fr>
18597
18598	Use bitset operations when possible, not loops over bits.
18599
18600	* src/conflicts.c (set_conflicts, count_sr_conflicts): Use
18601	bitset_or.
18602	* src/print.c (print_reductions): Use bitset_and, bitset_andn.
18603	* src/reduce.c (useless_nonterminals): Formatting changes.
18604	* src/warshall.c (TC): Use bitset_or.
18605
186062002-03-04  Akim Demaille  <akim@epita.fr>
18607
18608	* src/lalr.h, src/lalr.c (tokensetsize): Remove, unused.
18609	* src/system.h (BITS_PER_WORD, WORDSIZE, SETBIT, RESETBIT, BITISSET):
18610	Ditto.
18611
186122002-03-04  Akim Demaille  <akim@epita.fr>
18613
18614	* src/lalr.c (F): Now a bitset*.
18615	Adjust all dependencies.
18616
186172002-03-04  Akim Demaille  <akim@epita.fr>
18618
18619	* src/conflicts.c (shiftset, lookaheadset): Now bitset.
18620	Adjust all dependencies.
18621
186222002-03-04  Akim Demaille  <akim@epita.fr>
18623
18624	* src/L0.c, src/LR0.h (nstates): Be size_t.
18625	Adjust comparisons (signed vs unsigned).
18626	* src/conflics.c, src/lalr.c, src/lalr.h, src/output.c (LA): Now a
18627	bitset*.
18628	Adjust all dependencies.
18629
186302002-03-04  Akim Demaille  <akim@epita.fr>
18631
18632	* src/closure.c (firsts): Now, also a bitset.
18633	Adjust all dependencies.
18634	(varsetsize): Remove, now unused.
18635	* src/warshall.h, src/warshall.c: Now work on arrays of bitsets.
18636
186372002-03-04  Akim Demaille  <akim@epita.fr>
18638
18639	* src/print.c: Convert to use bitset.h, not hand coded iterations
18640	over ints.
18641
186422002-03-04  Akim Demaille  <akim@epita.fr>
18643
18644	* src/reduce.c: Convert to use bitset.h, not hand coded BSet.
18645
186462002-03-04  Akim Demaille  <akim@epita.fr>
18647
18648	* src/closure.c (ruleset): Be a bitset.
18649	(rulesetsize): Remove.
18650
186512002-03-04  Akim Demaille  <akim@epita.fr>
18652
18653	* lib/bitset-int.h, lib/bitset.c, lib/bitset.h, lib/bitsetv.c,
18654	* lib/bitsetv.h, lib/ebitset.c, lib/ebitset.h, lib/lbitset.c,
18655	* lib/lbitset.h, lib/sbitset.c, lib/sbitset.h: New.
18656	* src/closure.c (fderives): Be an array of bitsets.
18657
186582002-02-28  Robert Anisko  <robert@lrde.epita.fr>
18659
18660	* data/bison.c++: Merge the two generated headers.  Insert a copyright
18661	notice in each output file.
18662
186632002-02-28  Akim Demaille  <akim@epita.fr>
18664
18665	* data/bison.c++: Copy the prologue of bison.simple to fetch
18666	useful M4 definitions, such as b4_header_guard.
18667
186682002-02-25  Akim Demaille  <akim@epita.fr>
18669
18670	* src/getargs.c (version): Give the name of the authors, and use a
18671	translator friendly scheme for the bgr
18672	copyright notice.
18673
186742002-02-25  Akim Demaille  <akim@epita.fr>
18675
18676	* src/output.c (header_output): Remove, now handled completely via
18677	M4.
18678
186792002-02-25  Akim Demaille  <akim@epita.fr>
18680
18681	* m4/m4.m4: New, from CVS Autoconf.
18682	* configure.in: Invoke it.
18683	* src/output.c (output_skeleton): Use its result instead of the
18684	hard coded name.
18685
186862002-02-25  Akim Demaille  <akim@epita.fr>
18687
18688	* lib/tempname.c, lib/mkstemp.c, m4/mkstemp.m4: New, stolen from
18689	Fileutils 4.1.5.
18690	* configure.in: Invoke UTILS_FUNC_MKSTEMP.
18691	* src/output.c (output_skeleton): Use mkstemp to create a real
18692	temporary file.
18693	Move the filling of `skeleton' and its muscle to...
18694	(prepare): here.
18695	(output): Move the definition of the prologue muscle to...
18696	(prepare): here.
18697	* src/system.h (DEFAULT_TMPDIR): New.
18698
186992002-02-14  Paul Eggert  <eggert@twinsun.com>
18700
18701	Remove the support for C++ namespace cleanliness; it was
18702	causing more problems than it was curing, since it didn't work
18703	properly on some nonstandard C++ compilers.  This can wait
18704	for a proper C++ parser.
18705
18706	* NEWS: Document this.
18707	* doc/bison.texinfo (Bison Parser, Debugging): Remove special mention
18708	of C++, as it's treated like C now.
18709	* src/bison.simple (YYSTD): Remove.
18710	(YYSIZE_T, YYFPRINTF, YYPARSE_PARAM_ARG, YYPARSE_PARAM_DECL):
18711	Treat C++ just like Standard C instead of trying to support
18712	namespace cleanliness.
18713
187142002-02-14  Akim Demaille  <akim@epita.fr>
18715
18716	* tests/regression.at (else): Adjust to Andreas' change.
18717
187182002-02-14  Akim Demaille  <akim@epita.fr>
18719
18720	* lib/Makefile.am (EXTRA_DIST): Ship strnlen.c.
18721
187222002-02-13  Andreas Schwab  <schwab@suse.de>
18723
18724	* src/output.c (output_rule_data): Don't output NULL, it might
18725	not be defined yet.
18726
187272002-02-11  Robert Anisko  <robert@lrde.epita.fr>
18728
18729	* data/bison.c++ (YYDEBUG, YYERROR_VERBOSE): After the prologue.
18730	(Copyright notice): Update.
18731
187322002-02-11  Akim Demaille  <akim@epita.fr>
18733
18734	* tests/regression.at (%nonassoc and eof): Don't include
18735	nonportable headers.
18736
187372002-02-08  Robert Anisko  <robert@lrde.epita.fr>
18738
18739	* data/bison.c++: Correct error recovery.  Make the user able to
18740	initialize the starting location.
18741
187422002-02-07  Akim Demaille  <akim@epita.fr>
18743
18744	* tests/input.at: New.
18745
187462002-02-07  Robert Anisko  <robert@lrde.epita.fr>
18747
18748	* data/bison.c++: Replace some direct m4 expansions by constants.  Be
18749	more consistent when naming methods and variables.  Put preprocessor
18750	directives around tables only needed for debugging.
18751
187522002-02-07  Robert Anisko  <robert@lrde.epita.fr>
18753
18754	* data/bison.c++ (yy::b4_name::print_): New method, replaces yyprint in
18755	C++ parsers.
18756	(yy::b4_name::parse): Use print_.
18757
187582002-02-07  Robert Anisko  <robert@lrde.epita.fr>
18759
18760	* data/bison.c++ (yy::b4_name::parse): Error recovery is back.
18761
187622002-02-07  Robert Anisko  <robert@lrde.epita.fr>
18763
18764	* data/bison.c++ (yy::b4_name::error_): New method, replaces yyerror in
18765	C++ parsers.
18766	(yy::b4_name::parse): Build verbose error messages, and use error_.
18767
187682002-02-06  Robert Anisko  <robert@lrde.epita.fr>
18769
18770	* data/bison.c++: Fix m4 quoting in comments.
18771
187722002-02-06  Robert Anisko  <robert@lrde.epita.fr>
18773
18774	* data/bison.c++: Adjust the parser code.  Fix some muscles that were
18775	not expanded by m4.
18776
187772002-02-05  Akim Demaille  <akim@epita.fr>
18778
18779	* data/bison.c++: Adjust to the M4 back end.
18780	More is certainly needed.
18781
187822002-02-05  Akim Demaille  <akim@epita.fr>
18783
18784	Give a try to M4 as a back end.
18785
18786	* lib/readpipe.c: New, from wdiff.
18787	* src/Makefile.am (DEFS): Define PKGDATADIR, not BISON_SIMPLE and
18788	BISON_HAIRY.
18789	* src/system.h (BISON_HAIRY, BISON_SIMPLE): Remove the DOS and VMS
18790	specific values.  Now it is m4 that performs the lookup.
18791	* src/parse-skel.y: Remove.
18792	* src/muscle_tab.c, src/muscle_tab.h (muscles_m4_output): New.
18793	* src/output.c (actions_output, guards_output)
18794	(token_definitions_output): No longer keeps track of the output
18795	line number, hence remove the second argument.
18796	(guards_output): Check against the guard member of a rule, not the
18797	action member.
18798	Adjust callers.
18799	(output_skeleton): Don't look for the skeleton location, let m4 do
18800	that.
18801	Create `/tmp/muscles.m4'.  This is temporary, a proper temporary
18802	file will be used.
18803	Invoke `m4' on m4sugar.m4, muscles.m4, and the skeleton.
18804	(prepare): Given that for the time being changesyntax is not
18805	usable in M4, rename the muscles using `-' to `_'.
18806	Define `defines_flag', `output_parser_name' and `output_header_name'.
18807	* src/output.h (actions_output, guards_output)
18808	(token_definitions_output): Adjust prototypes.
18809	* src/scan-skel.l: Instead of scanning the skeletons, it now
18810	processes the output of m4: `__oline__' and `#output'.
18811	* data/bison.simple: Adjust to be used by M4(sugar).
18812	* tests/Makefile.am: Use check_SCRIPTS to make sure `bison' is up
18813	to date.
18814	* tests/bison.in: Use the secrete envvar `BISON_PKGDATADIR'
18815	instead of the dead `BISON_SIMPLE' and `BISON_HAIRY'.
18816	* data/m4sugar/m4sugar.m4, data/m4sugar/version.m4: New,
18817	shamelessly stolen from CVS Autoconf.
18818
188192002-02-05  Akim Demaille  <akim@epita.fr>
18820
18821	* lib/hash.c, lib/hash.h: Replace with Fileutils 4.1's version.
18822	* configure.in: Check for the declarations of free and malloc.
18823	* src/muscle_tab.c: Adjust.
18824
188252002-02-05  Akim Demaille  <akim@epita.fr>
18826
18827	* src/muscle_tab.c (muscle_init): Don't default to NULL muscle
18828	which have no values.
18829
188302002-02-05  Akim Demaille  <akim@epita.fr>
18831
18832	* src/bison.simple, src/bison.hairy, src/bison.c++: Move to...
18833	* data/: here.
18834
188352002-01-29  Paul Eggert  <eggert@twinsun.com>
18836
18837	* src/bison.simple (YYSIZE_T): Do not define merely because
18838	YYSTACK_USE_ALLOCA is nonzero or alloca or _ALLOCA_H are defined.
18839	On some platforms, <alloca.h> does not declare YYSTD (size_t).
18840
188412002-01-27  Akim Demaille  <akim@epita.fr>
18842
18843	Fix `%nonassoc and eof'.
18844
18845	* src/state.c (errs_dup): Aaaah!  The failure was due to bytes
18846	which were not properly copied!  Replace
18847	memcpy (res->errs, src->errs, src->nerrs);
18848	with
18849	memcpy (res->errs, src->errs, src->nerrs * sizeof (src->errs[0]));
18850	!!!
18851	* tests/regression.at (%nonassoc and eof): Adjust to newest
18852	Autotest: `.' is not in the PATH.
18853
188542002-01-27  Akim Demaille  <akim@epita.fr>
18855
18856	* tests/sets.at (AT_EXTRACT_SETS): New.
18857	(Nullable): Use it.
18858	(Firsts): New.
18859
188602002-01-26  Akim Demaille  <akim@epita.fr>
18861
18862	* tests/actions.at, tests/calc.at, tests/headers.at,
18863	* tests/torture.at: Adjust to the newest Autotest which no longer
18864	forces `.' in the PATH.
18865
188662002-01-25  Akim Demaille  <akim@epita.fr>
18867
18868	* tests/regression.at (%nonassoc and eof): New.
18869	Suggested by Robert Anisko.
18870
188712002-01-24  Akim Demaille  <akim@epita.fr>
18872
18873	Bison dumps core when trying to complain about broken input files.
18874	Reported by Cris van Pelt.
18875
18876	* src/lex.c (parse_percent_token): Be sure to set token_buffer.
18877	* tests/regression.at (Invalid input: 1, Invalid input: 2): Merge
18878	into...
18879	(Invalid inputs): Strengthen: exercise parse_percent_token.
18880
188812002-01-24  Robert Anisko  <robert.anisko@epita.fr>
18882
18883	* src/Makefile.am: Add bison.c++.
18884	* src/bison.c++: New skeleton.
18885
188862002-01-21  Paolo Bonzini <bonzini@gnu.org>
18887
18888	* po/it.po: New.
18889
188902002-01-21  Kees Zeelenberg  <kzlg@users.sourceforge.net>
18891
18892	* src/files.c (skeleton_find) [MSDOS]: Fix cp definition.
18893
188942002-01-20  Marc Autret  <marc@gnu.org>
18895
18896	* src/files.c (compute_output_file_names): Fix
18897
188982002-01-20  Marc Autret  <marc@gnu.org>
18899
18900	* tests/output.at: New test.
18901	* src/files.c (compute_base_names): Don't map extensions when
18902	the YACC flag is set, use defaults.
18903	Reported by Evgeny Stambulchik.
18904
189052002-01-20  Marc Autret  <marc@gnu.org>
18906
18907	* src/system.h: Need to define __attribute__ away for non-GCC
18908	compilers as well (i.e., the vendor C compiler).
18909	Suggested by Albert Chin-A-Young.
18910
189112002-01-11  Tim Van Holder  <tim.van.holder@pandora.be>
18912
18913	* lib/hash.h, lib/hash.c: Renamed __P to PARAMS and used the
18914	canonical definition.
18915	* src/system.h: Use the canonical definition for PARAMS (avoids
18916	a conflict with the macro from lib/hash.h).
18917
189182002-01-11  Akim Demaille  <akim@epita.fr>
18919
18920	* configure.in: Use AC_FUNC_STRNLEN.
18921	Fixes the failures observed on AIX 4.3 by H.Merijn Brand.
18922
189232002-01-09  Akim Demaille  <akim@epita.fr>
18924
18925	* src/files.c, src/files.h (output_infix): New.
18926	(tab_extension): Remove.
18927	(compute_base_names): Compute the former, drop the latter.
18928	* src/output.c (prepare): Insert the muscles `output-infix', and
18929	`output-suffix'.
18930	* src/parse-skel.y (string, string.1): New.
18931	(section.header): Use it.
18932	(section.yacc): Remove.
18933	(prefix): Remove too.
18934	* src/scan-skel.l: Adjust.
18935	* src/bison.simple, src/bison.hairy: Adjust.
18936
189372002-01-09  Akim Demaille  <akim@epita.fr>
18938
18939	* configure.in (WERROR_CFLAGS): Compute it.
18940	* src/Makefile.am (CFLAGS): Pass it.
18941	* tests/atlocal.in (CFLAGS): Idem.
18942	* src/files.c: Fix a few warnings.
18943	(get_extension_index): Remove, unused.
18944
189452002-01-08  Akim Demaille  <akim@epita.fr>
18946
18947	* src/getargs.c (AS_FILE_NAME): New.
18948	(getargs): Use it to convert DOSish file names.
18949	* src/files.c (base_name): Rename as full_base_name to avoid
18950	clashes with `base_name ()'.
18951	(filename_split): New.
18952	(compute_base_names): N-th rewrite, using filename_split.
18953
189542002-01-08  Akim Demaille  <akim@epita.fr>
18955
18956	* lib/basename.c, lib/dirname.h, lib/dirname.c, lib/memrchr.c:
18957	New, stolen from the Fileutils 4.1.
18958	* lib/Makefile.am (libbison_a_SOURCES): Adjust.
18959	* configure.in: Check for the presence of memrchr, and of its
18960	prototype.
18961
189622002-01-07  Tim Van Holder  <tim.van.holder@pandora.be>
18963
18964	* lib/hash.h (__P): Added definition for this macro.
18965	* src/Makefile.am: Add parse-skel.c and scan-skel.c to
18966	BUILT_SOURCES, to ensure they are generated first.
18967	* src/parse-skel.y: Use YYERROR_VERBOSE instead of
18968	%error-verbose to allow bootstrapping with bison 1.30x.
18969
189702002-01-06  Akim Demaille  <akim@epita.fr>
18971
18972	* src/reader.c (parse_braces): Don't fetch the next char, the
18973	convention is to fetch on entry.
18974	* tests/torture.at (GNU Cim Grammar): Reintroduce their weird
18975	'switch' without a following semicolon.
18976	* tests/regression.at (braces parsing): New.
18977
189782002-01-06  Akim Demaille  <akim@epita.fr>
18979
18980	Bison is dead wrong in its RR conflict reports.
18981
18982	* tests/torture.at (GNU Cim Grammar): New.
18983	* src/conflicts.c (count_rr_conflicts): Fix.
18984
189852002-01-06  Akim Demaille  <akim@epita.fr>
18986
18987	Creating package.m4 from configure.ac causes too many problems.
18988
18989	* tests/Makefile.am (package.m4): Create it by hand,
18990	AC_CONFIG_TESTDIR no longer does in the most recent CVS Autoconf.
18991
189922002-01-06  Akim Demaille  <akim@epita.fr>
18993
18994	* src/Makefile.am (bison_SOURCES): Add parse-skel.h and
18995	skeleton.h.
18996
189972002-01-04  Paul Eggert  <eggert@twinsun.com>
18998
18999	* doc/bison.texinfo (Debugging):
19000	Remove YYSTDERR; it's no longer defined or used.
19001	Also, s/cstdio.h/cstdio/.
19002
190032002-01-03  Akim Demaille  <akim@epita.fr>
19004
19005	* tests/bison.in, tests/atlocal.in: Adjust to CVS Autoconf.
19006
190072002-01-03  Akim Demaille  <akim@epita.fr>
19008
19009	* src/parse-skel.y (process_skeleton): Don't bind the parser's
19010	tracing code to --trace, wait for a better --trace option, with
19011	args.
19012
190132002-01-03  Akim Demaille  <akim@epita.fr>
19014
19015	* src/bison.simple (YYSTDERR): Remove, replace `stderr'.
19016	The ISO C++ standard is extremely clear about it: stderr is
19017	considered a macro, not a regular symbol (see table 94 `Header
19018	<cstdio> synopsis', [lib.c.files] 27.8.2 C Library files).
19019	Therefore std:: does not apply to it.  It still does with fprintf.
19020	Also, s/cstdio.h/cstdio/.
19021
190222002-01-03  Akim Demaille  <akim@epita.fr>
19023
19024	* lib/quotearg.c: Use `#include "..."' instead of `#include <...>'
19025	for non system headers.
19026
190272002-01-02  Akim Demaille  <akim@epita.fr>
19028
19029	Equip the skeleton chain with location tracking, runtime trace,
19030	pure parser and scanner.
19031
19032	* src/parse-skel.y: Request a pure parser, locations, and prefix
19033	renaming.
19034	(%union): Having several members with the same type does not help
19035	type mismatches, simplify.
19036	(YYPRINT, yyprint): New.
19037	(yyerror): ``Rename'' (there is a #define yyerror skel_error) as...
19038	(skel_error): this.
19039	Handle locations.
19040	* src/scan-skel.l: Adjust to these changes.
19041	* src/skeleton.h (LOCATION_RESET, LOCATION_LINES, LOCATION_STEP)
19042	(LOCATION_PRINT, skel_control_t): New.
19043
190442001-12-30  Akim Demaille  <akim@epita.fr>
19045
19046	* src/parse-skel.y: Get rid of the shift/reduce conflict:
19047	replace `gb' with BLANKS.
19048	* src/scan-skel.l: Adjust.
19049
190502001-12-30  Akim Demaille  <akim@epita.fr>
19051
19052	* src/system.h: We don't need nor want bcopy.
19053	Throw away MS-DOS crap: we don't need getpid.
19054	* configure.in: We don't need strndup.  It was even causing
19055	problems: because Flex includes the headers *before* us,
19056	_GNU_SOURCE is not defined by config.h, and therefore strndup was
19057	not visible.
19058	* lib/xstrndup.c: New.
19059	* src/scan-skel.l: Use it.
19060	Be sure to initialize yylval.muscle member when scanning a MUSCLE.
19061	* src/parse-skel.y: Use %directives instead of #defines.
19062
190632001-12-30  Akim Demaille  <akim@epita.fr>
19064
19065	* src/skeleton.h: New.
19066	* src/output.c (output_parser, output_master_parser): Remove, dead
19067	code.
19068	* src/output.h (get_lines_number, actions_output, guards_output)
19069	(token_definitions_output): Prototype them.
19070	* src/parse-skel.y: Add the license notice.
19071	Include output.h and skeleton.h.
19072	(process_skeleton): Returns void, and takes a single parameter.
19073	* src/scan-skel.l: Add the license notice.
19074	Include skeleton.h.
19075	Don't use %option yylineno: it seems that then Flex imagines
19076	REJECT has been used, and therefore it won't reallocate its
19077	buffers (which makes no other sense to me than a bug).  It results
19078	in warnings for `unused: yy_flex_realloc'.
19079
190802001-12-30  Robert Anisko  <robert.anisko@epita.fr>
19081
19082	* src/muscle_tab.h (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
19083	(MUSCLE_INSERT_PREFIX): ...to there.
19084	* src/output.c (MUSCLE_INSERT_INT, MUSCLE_INSERT_STRING)
19085	(MUSCLE_INSERT_PREFIX): Move from here...
19086
19087	* src/bison.hairy: Add a section directive.  Put braces around muscle
19088	names.  This parser skeleton is still broken, but Bison should not
19089	choke on a bad muscle 'syntax'.
19090	* src/bison.simple: Add a section directive.  Put braces around muscle
19091	names.
19092
19093	* src/files.h (strsuffix, stringappend): Add declarations.
19094	(tab_extension): Add declaration.
19095	(short_base_name): Add declaration.
19096
19097	* src/files.c (strsuffix, stringappend): No longer static.  These
19098	functions are used in the skeleton parser.
19099	(tab_extension): New.
19100	(compute_base_names): Use the computations done in this function
19101	to guess if the generated parsers should have '.tab' in their
19102	names.
19103	(short_base_name): No longer static.
19104
19105	* src/output.c (output_skeleton): New.
19106	(output): Disable call to output_master_parser, and give a try to
19107	a new skeleton handling system.
19108	(guards_output, actions_output): No longer static.
19109	(token_definitions_output, get_lines_number): No longer static.
19110
19111	* configure.in: Use AM_PROG_LEX and AC_PROG_YACC.
19112
19113	* src/Makefile.am (bison_SOURCES): Add scan-skel.l and
19114	parse-skel.y.
19115
19116	* src/parse-skel.y: New file.
19117	* src/scan-skel.l: New file.
19118
191192001-12-29  Akim Demaille  <akim@epita.fr>
19120
19121	%name-prefix is broken.
19122
19123	* src/files.c (spec_name_prefix): Initialize to NULL, not to "yy".
19124	Adjust all dependencies.
19125	* tests/headers.at (export YYLTYPE): Strengthen this test: use
19126	%name-prefix.
19127
19128	Renaming yylval but not yylloc is not consistent.  Now we do.
19129
19130	* src/bison.simple: Prefix yylloc if used.
19131	* doc/bison.texinfo (Decl Summary): Document that.
19132
191332001-12-29  Akim Demaille  <akim@epita.fr>
19134
19135	* doc/bison.texinfo: Promote `%long-directive' over
19136	`%long_directive'.
19137	Remove all references to fixed-output-files, yacc is enough.
19138
191392001-12-29  Akim Demaille  <akim@epita.fr>
19140
19141	* src/bison.simple: Define YYDEBUG and YYERROR_VERBOSE *after* the
19142	user prologue.  These are defaults.
19143	* tests/actions.at (Mid-rule actions): Make sure the user can
19144	define YYDEBUG and YYERROR_VERBOSE.
19145
191462001-12-29  Akim Demaille  <akim@epita.fr>
19147
19148	* src/output.c (header_output): Don't forget to export YYLTYPE and
19149	yylloc.
19150	* tests/headers.at (export YYLTYPE): New, make sure it does.
19151	* tests/regression.at (%union and --defines, Invalid CPP headers):
19152	Move to...
19153	* tests/headers.at: here.
19154
191552001-12-29  Akim Demaille  <akim@epita.fr>
19156
19157	* src/gram.h (rule_s): Member `assoc' is of type `associativity'.
19158
191592001-12-29  Akim Demaille  <akim@epita.fr>
19160
19161	* tests/actions.at (Mid-rule actions): Output on a single line
19162	instead of several.
19163
191642001-12-29  Akim Demaille  <akim@epita.fr>
19165
19166	* doc/bison.texinfo: Formatting changes.
19167
191682001-12-29  Akim Demaille  <akim@epita.fr>
19169
19170	Don't store the token defs in a muscle, just be ready to output it
19171	on command.  Now possible via `symbols'.  Fixes a memory leak.
19172
19173	* src/output.c (token_definitions_output): New.
19174	(output_parser, header_output): Use it.
19175	* src/reader.c (symbols_save): Remove.
19176
191772001-12-29  Akim Demaille  <akim@epita.fr>
19178
19179	* src/bison.simple: Do not provide a default for YYSTYPE and
19180	YYLTYPE before the user's prologue.  Otherwise it's hardly... a
19181	default.
19182
191832001-12-29  Akim Demaille  <akim@epita.fr>
19184
19185	Mid-rule actions are simply... ignored!
19186
19187	* src/reader.c (readgram): Be sure to attach mid-rule actions to
19188	the empty-rule associated to the dummy symbol, not to the host
19189	rule.
19190	* tests/actions.at (Mid-rule actions): New.
19191
191922001-12-29  Akim Demaille  <akim@epita.fr>
19193
19194	Memory leak.
19195
19196	* src/reader.c (reader): Free grammar.
19197
191982001-12-29  Akim Demaille  <akim@epita.fr>
19199
19200	Memory leak.
19201
19202	* src/LR0.c (new_itemsets): Don't allocate `shift_symbol' here,
19203	since it allocates it for each state, although only one is needed.
19204	(allocate_storage): Do it here.
19205
192062001-12-29  Akim Demaille  <akim@epita.fr>
19207
19208	* src/options.h, src/options.c (create_long_option_table): Rename
19209	as...
19210	(long_option_table_new): this, with a clearer prototype.
19211	(percent_table): Remove, unused,
19212	* src/getargs.c (getargs): Adjust.
19213
192142001-12-29  Akim Demaille  <akim@epita.fr>
19215
19216	* src/LR0.c, src/conflicts.c, src/lalr.c, src/lalr.h, src/output.c
19217	* src/print.c, src/print_graph.c, src/state.h: Rename state_table
19218	as states.
19219
192202001-12-29  Akim Demaille  <akim@epita.fr>
19221
19222	* src/lalr.c (build_relations): Rename `states' as `states1'.
19223	Sorry, I don't understand exactly what it is, no better name...
19224
192252001-12-29  Akim Demaille  <akim@epita.fr>
19226
19227	* src/closure.c, src/conflicts.c, src/derives.c, src/gram.c
19228	* src/gram.h, src/lalr.c, src/nullable.c, src/output.c, src/print.c
19229	* src/print_graph.c, src/reader.c, src/reduce.c: Rename rule_table
19230	as rules.
19231
192322001-12-29  Akim Demaille  <akim@epita.fr>
19233
19234	* src/gram.c (rprec, rprecsym, rassoc): Remove, unused since long
19235	ago.
19236
192372001-12-29  Akim Demaille  <akim@epita.fr>
19238
19239	* src/reader.c, src/reader.h (user_toknums): Remove.
19240	Adjust all users to use symbols[i]->user_token_number.
19241
192422001-12-29  Akim Demaille  <akim@epita.fr>
19243
19244	* src/gram.c, src/gram.h (sprec, sassoc): Remove.
19245	Adjust all users to use symbols[i]->prec or ->assoc.
19246
192472001-12-29  Akim Demaille  <akim@epita.fr>
19248
19249	* src/reader.c, src/reader.h (tags): Remove.
19250	Adjust all users to use symbols[i]->tag.
19251
192522001-12-29  Akim Demaille  <akim@epita.fr>
19253
19254	* src/gram.h, src/gram.c (symbols): New, similar to state_table
19255	and rule_table.
19256	* src/reader.c (packsymbols): Fill this table.
19257	Drop sprec.
19258	* src/conflicts.c (resolve_sr_conflict): Adjust.
19259	* src/reduce.c (reduce_grammar): Adjust: just sort symbols, a
19260	single table.
19261	Use symbols[i]->tag instead of tags[i].
19262
192632001-12-29  Akim Demaille  <akim@epita.fr>
19264
19265	* tests/calc.at (_AT_DATA_CALC_Y): Also use %union.
19266	In addition, put a comment in there, to replace...
19267	* tests/regression.at (%union and C comments): Remove.
19268
192692001-12-29  Akim Demaille  <akim@epita.fr>
19270
19271	* tests/regression.at (Web2c Actions): Blindly move the actual
19272	output as expected output.  The contents *seem* right to me, but I
19273	can't pretend reading perfectly parser tables...  Nonetheless, all
19274	the other tests pass correctly, the table look OK, even though the
19275	presence of `$axiom' is to be noted: AFAICS it is useless (but
19276	harmless).
19277
192782001-12-29  Akim Demaille  <akim@epita.fr>
19279
19280	* src/reader.c (readgram): Don't add the rule 0 if there were no
19281	rules read.  In other words, add it _after_ having performed
19282	grammar sanity checks.
19283	Fixes the `tests/regression.at (Invalid input: 1)' Failure.
19284
192852001-12-29  Akim Demaille  <akim@epita.fr>
19286
19287	* tests/regression.at (Web2c Report): Catch up: the rule 0 is now
19288	visible, and some states have now a different number.
19289
192902001-12-29  Akim Demaille  <akim@epita.fr>
19291
19292	* src/reader.c (readgram): Bind the initial rule's lineno to that
19293	of the first rule.
19294	* tests/regression.at (Rule Line Numbers, Unresolved SR Conflicts):
19295	(Solved SR Conflicts): Adjust rule 0's line number.
19296
192972001-12-29  Akim Demaille  <akim@epita.fr>
19298
19299	Fix the `GAWK Grammar' failure.
19300
19301	* src/LR0.c (final_state): Initialize to -1 so that we do compute
19302	the reductions of the first state which was mistakenly confused
19303	with the final state because precisely final_state was initialized
19304	to 0.
19305	* tests/sets.at (Nullable): Adjust: state 0 does have lookaheads,
19306	now noticed by Bison.
19307	* tests/regression.at (Rule Line Numbers): Adjust: state 0 does
19308	have a reduction on $default.
19309
193102001-12-29  Akim Demaille  <akim@epita.fr>
19311
19312	* src/gram.c (ritem_print): Be sure to subtract 1 when displaying
19313	rule line numbers.
19314	* src/closure.c (print_closure): Likewise.
19315	* src/derives.c (print_derives): Likewise.
19316	* tests/sets.at (Nullable): Adjust: the rule numbers are correct
19317	now.
19318
193192001-12-29  Akim Demaille  <akim@epita.fr>
19320
19321	* src/lalr.c (lookaheads_print): New.
19322	(lalr): Call it when --trace-flag.
19323	* tests/sets.at (Nullable): Adjust: when tracing, the lookaheads
19324	are dumped.
19325
193262001-12-29  Akim Demaille  <akim@epita.fr>
19327
19328	* src/derives.c (print_derives): Be sure to use `>= 0', not `> 0',
19329	when walking through ritem, even via rule->rhs.
19330	* src/reduce.c (dump_grammar, useful_production, reduce_output)
19331	(useful_production, useless_nonterminals): Likewise.
19332	(reduce_grammar_tables): Likewise, plus update nritems.
19333	* src/nullable.c (set_nullable): Likewise.
19334	* src/lalr.c (build_relations): Likewise.
19335	* tests/sets.at (Nullable): Adjust.
19336	Fortunately, now, the $axiom is no longer nullable.
19337
193382001-12-29  Akim Demaille  <akim@epita.fr>
19339
19340	* src/LR0.c (generate_states): Use nritems, not nitems, nor using
19341	the 0-sentinel.
19342	* src/gram.c (ritem_longest_rhs): Likewise.
19343	* src/reduce.c (nonterminals_reduce): Likewise.
19344	* src/print_graph.c (print_graph): Likewise.
19345	* src/output.c (output_rule_data): Likewise.
19346	* src/nullable.c (set_nullable):  Likewise.
19347
193482001-12-29  Akim Demaille  <akim@epita.fr>
19349
19350	* src/output.c: Comment changes.
19351
193522001-12-27  Paul Eggert  <eggert@twinsun.com>
19353
19354	* src/bison.simple (YYSTACK_ALLOC, YYSIZE_T): Remove special
19355	cases for non-GNU systems like AIX, HP-UX, SGI, Sun, and
19356	Sparc, as they were causing more porting problems than the
19357	(minor) performance improvement was worth.
19358
19359	Also, catch up with 1.31's YYSTD.
19360
193612001-12-27  Akim Demaille  <akim@epita.fr>
19362
19363	* src/output.c (output_gram): Rely on nritems, not the
19364	0-sentinel.  See below.
19365	Use -1 as separator, not 0.
19366	* src/bison.simple (yyparse): Subtract 1 to the rule numbers.
19367	Rely on -1 as separator in yyrhs, instead of 0.
19368	* tests/calc.at (AT_CHECK_CALC): Now, the parsers no longer issue
19369	twice `Now at end of input', therefore there are two lines less to
19370	expect.
19371
193722001-12-27  Akim Demaille  <akim@epita.fr>
19373
19374	* tests/regression.at (Unresolved SR Conflicts):
19375	(Solved SR Conflicts, Rule Line Numbers): Adjust to the changes
19376	below.
19377
193782001-12-27  Akim Demaille  <akim@epita.fr>
19379
19380	* src/LR0.c (new_state): Recognize the final state by the fact it
19381	is reached by eoftoken.
19382	(insert_start_shifting_state, insert_eof_shifting_state)
19383	(insert_accepting_state, augment_automaton): Remove, since now
19384	these states are automatically computed from the initial state.
19385	(generate_states): Adjust.
19386	* src/print.c: When reporting a rule number to the user, subtract
19387	1, so that the axiom rule is rule 0, and the first user rule is 1.
19388	* src/reduce.c: Likewise.
19389	* src/print_graph.c (print_core): For the time being, just as for
19390	the report, depend upon --trace-flags to dump the full set of
19391	items.
19392	* src/reader.c (readgram): Once the grammar read, insert the rule
19393	0: `$axiom: START-SYMBOL $'.
19394	* tests/set.at: Adjust: rule 0 is now displayed, and since the
19395	number of the states has changed (the final state is no longer
19396	necessarily the last), catch up.
19397
193982001-12-27  Akim Demaille  <akim@epita.fr>
19399
19400	Try to make the use of the eoftoken valid.  Given that its value
19401	is 0 which was also used as a sentinel in ritem, (i) make sure >= 0
19402	is used instead of > 0 where appropriate, (ii), depend upon nritems
19403	instead of the 0-sentinel.
19404
19405	* src/gram.h, src/gram.c (nritems): New.
19406	Expected to be duplication of nitems, but for the time being...
19407	* src/reader.c (packgram): Assert nritems and nitems are equal.
19408	* src/LR0.c (allocate_itemsets, new_itemsets): Adjust.
19409	* src/closure.c (print_closure, print_fderives): Likewise.
19410	* src/gram.c (ritem_print): Likewise.
19411	* src/print.c (print_core, print_grammar): Likewise.
19412	* src/print_graph.c: Likewise.
19413
194142001-12-27  Akim Demaille  <akim@epita.fr>
19415
19416	* src/main.c (main): If there are complains after grammar
19417	reductions, then output the report anyway if requested, then die.
19418	* src/symtab.c (bucket_new): Initialize `value' to -1, not 0.
19419	* src/reader.c (eoftoken): New.
19420	(parse_token_decl): If the token being defined has value `0', it
19421	is the eoftoken.
19422	(packsymbols): No longer hack `tags' to insert `$' by hand.
19423	Be sure to preserve the value of the eoftoken.
19424	(reader): Make sure eoftoken is defined.
19425	Initialize nsyms to 0: now eoftoken is created just like the others.
19426	* src/print.c (print_grammar): Don't special case the eof token.
19427	* src/regression.at: Adjust: `$' has value 0, not -1, which was a
19428	lie anyway, albeit pleasant.
19429	* tests/calc.at: Exercise error messages with eoftoken.
19430	Change the grammar so that empty input is invalid.
19431	Adjust expectations.
19432	When yyungeting, be sure to use a valid yylloc: use last_yylloc.
19433
194342001-12-27  Akim Demaille  <akim@epita.fr>
19435
19436	* configure.in: Check the protos of strchr ans strspn.
19437	Replace strchr if needed.
19438	* src/system.h: Provide the protos of strchr, strspn and memchr if
19439	missing.
19440	* lib/strchr.c: New.
19441	* src/reader.c (symbols_save): Use strchr.
19442
194432001-12-27  Akim Demaille  <akim@epita.fr>
19444
19445	* src/print.c, src/print_graph.c (escape): New.
19446	Use it to quote the TAGS outputs.
19447	* src/print_graph.c (print_state): Now errors are in red, and
19448	reductions in green.
19449	Prefer high to wide: output the state number on a line of its own.
19450
194512001-12-27  Akim Demaille  <akim@epita.fr>
19452
19453	* src/state.h, src/state.c (reductions_new): New.
19454	* src/LR0.c (set_state_table): Let all the states have a
19455	`reductions', even if reduced to 0.
19456	(save_reductions): Adjust.
19457	* src/lalr.c (initialize_LA, initialize_lookaheads): Adjust.
19458	* src/print.c (print_reductions, print_actions): Adjust.
19459	* src/output.c (action_row): Adjust.
19460
194612001-12-27  Akim Demaille  <akim@epita.fr>
19462
19463	* src/state.h, src/state.c (errs_new, errs_dup): New.
19464	* src/LR0.c (set_state_table): Let all the states have an errs,
19465	even if reduced to 0.
19466	* src/print.c (print_errs, print_reductions): Adjust.
19467	* src/output.c (output_actions, action_row): Adjust.
19468	* src/conflicts.c (resolve_sr_conflict): Adjust.
19469
194702001-12-27  Akim Demaille  <akim@epita.fr>
19471
19472	* src/lalr.c (set_goto_map, initialize_F): Use SHIFT_SYMBOL.
19473
194742001-12-27  Akim Demaille  <akim@epita.fr>
19475
19476	* src/conflicts.c, src/conflicts.h (print_reductions): Move to...
19477	* src/print.c: here.
19478	(lookaheadset, shiftset): New, used as additional storage by
19479	print_reductions.
19480	(print_results): Adjust.
19481	(print_shifts, print_gotos, print_errs): New, extracted from...
19482	(print_actions): here.
19483	* src/print_graph.c (print_actions): Remove dead code.
19484
194852001-12-27  Akim Demaille  <akim@epita.fr>
19486
19487	* src/reader.c (copy_dollar, copy_at): Better checking of `n' in
19488	`$n' and `@n'.
19489
194902001-12-27  Akim Demaille  <akim@epita.fr>
19491
19492	* src/lalr.c (add_lookback_edge): Use state_t instead of ints.
19493	(build_relations): Adjust.
19494
194952001-12-27  Akim Demaille  <akim@epita.fr>
19496
19497	* src/lalr.c (set_goto_map): Remove a wrong but benign loop
19498	duplication.
19499
195002001-12-27  Akim Demaille  <akim@epita.fr>
19501
19502	* src/reader.c (packgram): Catch nitems overflows.
19503
195042001-12-27  Akim Demaille  <akim@epita.fr>
19505
19506	* src/files.c, src/files.h (guard_obstack): Remove.
19507	* src/output.c (output): Adjust.
19508	* src/reader.c (parse_braces): New, factoring...
19509	(copy_action, copy_guard): these two which are renamed as...
19510	(parse_action, parse_guard): these.
19511	As a voluntary consequence, using braces around guards is now
19512	mandatory.
19513
195142001-12-27  Akim Demaille  <akim@epita.fr>
19515
19516	* src/gram.h (rule_t): `guard' and `guard_line' are new members.
19517	* src/reader.c (symbol_list): `guard' and `guard_line' are new
19518	members.
19519	(symbol_list_new): Adjust.
19520	(copy_action): action_line is the first line, not the last.
19521	(copy_guard): Just as for actions, store the `action' only, not
19522	the switch/case/break flesh.
19523	Don't parse the user action that might follow the guard, let...
19524	(readgram): do it, i.e., now, there can be an action after a
19525	guard.
19526	In other words the guard is just explicitly optional.
19527	(packgram): Adjust.
19528	* src/output.c (guards_output): New.
19529	(output_parser): Call it when needed.
19530	(output): Also free the guard and attrs obstacks.
19531	* src/files.c, src/files.h (obstack_save): Remove.
19532	(output_files): Remove.
19533	As a result, if one needs the former `.act' file, using an
19534	appropriate skeleton which requires actions and guards is now
19535	required.
19536	* src/main.c (main): Adjust.
19537	* tests/semantic.at: New.
19538	* tests/regression.at: Use `input.y' as input file name.
19539	Avoid 8+3 problems by requiring input.c when the test needs the
19540	parser.
19541
195422001-12-27  Akim Demaille  <akim@epita.fr>
19543
19544	* src/reader.c (symbol_list_new): Be sure to initialize all the
19545	fields.
19546
195472001-12-27  Akim Demaille  <akim@epita.fr>
19548
19549	All the hacks using a final pseudo state are now useless.
19550
19551	* src/LR0.c (set_state_table): state_table holds exactly nstates.
19552	* src/lalr.c (nLA): New.
19553	(initialize_LA, compute_lookaheads, initialize_lookaheads): Use it
19554	instead of lookaheadsp from the pseudo state (nstate + 1).
19555
195562001-12-27  Akim Demaille  <akim@epita.fr>
19557
19558	* src/output.c (action_row, token_actions): Use a state_t instead
19559	of a integer, and nlookaheads instead of the following state's
19560	lookaheadsp.
19561
195622001-12-27  Akim Demaille  <akim@epita.fr>
19563
19564	* src/conflicts.c (log_resolution, flush_shift)
19565	(resolve_sr_conflict, set_conflicts, solve_conflicts)
19566	(count_sr_conflicts, count_rr_conflicts, conflicts_output)
19567	(conflicts_print, print_reductions): Use a state_t instead of an
19568	integer when referring to a state.
19569	As much as possible, depend upon nlookaheads, instead of the
19570	`lookaheadsp' member of the following state (since lookaheads of
19571	successive states are successive, the difference between state n + 1
19572	and n served as the number of lookaheads for state n).
19573	* src/lalr.c (add_lookback_edge): Likewise.
19574	* src/print.c (print_core, print_actions, print_state)
19575	(print_results): Likewise.
19576	* src/print_graph.c (print_core, print_actions, print_state)
19577	(print_graph): Likewise.
19578	* src/conflicts.h: Adjust.
19579
195802001-12-27  Akim Demaille  <akim@epita.fr>
19581
19582	* src/bison.hairy: Formatting/comment changes.
19583	ANSIfy.
19584	Remove `register' indications.
19585	Add plenty of `static'.
19586
195872001-12-27  Akim Demaille  <akim@epita.fr>
19588
19589	* src/output.c (prepare): Drop the muscle `ntbase' which
19590	duplicates ntokens.
19591	* src/bison.simple: Formatting/comment changes.
19592	Use YYNTOKENS only, which is documented, but not YYNTBASE, which
19593	is an undocumented synonym.
19594
195952001-12-22  Akim Demaille  <akim@epita.fr>
19596
19597	* src/output.c (output_table_data): Change the prototype to use
19598	`int' for array ranges: some invocations do pass an int, not a
19599	short.
19600	Reported by Wayne Green.
19601
196022001-12-22  Akim Demaille  <akim@epita.fr>
19603
19604	Some actions of web2c.y are improperly triggered.
19605	Reported by Mike Castle.
19606
19607	* src/lalr.c (traverse): s/F (i)[k] = F (j)[k]/F (j)[k] = F (i)[k]/.
19608	* tests/regression.at (Web2c): Rename as...
19609	(Web2c Report): this.
19610	(Web2c Actions): New.
19611
196122001-12-22  Akim Demaille  <akim@epita.fr>
19613
19614	Reductions in web2c.y are improperly reported.
19615	Reported by Mike Castle.
19616
19617	* src/conflicts.c (print_reductions): Fix.
19618	* tests/regression.at (Web2c): New.
19619
196202001-12-18  Akim Demaille  <akim@epita.fr>
19621
19622	Some host fail on `assert (!"foo")', which expands to
19623	((!"foo") ? (void)0 : __assert("!"foo."", __FILE__, __LINE__))
19624	Reported by Nelson Beebee.
19625
19626	* src/output.c, src/vcg.c: Replace `assert (!"it succeeded")' with
19627	`#define it_succeeded 0' and `assert (it_succeeded)'.
19628
196292001-12-17  Marc Autret  <autret_m@epita.fr>
19630
19631	* src/bison.simple: Don't hard code the skeleton line and filename.
19632	* src/output.c (output_parser): Rename 'line' as 'output_line'.
19633	New line counter 'skeleton_line' (skeleton-line muscle).
19634
196352001-12-17  Paul Eggert  <eggert@twinsun.com>
19636
19637	* NEWS, doc/bison.texinfo, doc/bison.1, doc/bison.rnh: Document that
19638	YYDEBUG must be defined to a nonzero value.
19639
19640	* src/bison.simple (yytname): Do not assume that the user defines
19641	YYDEBUG to a properly parenthesized expression.
19642
196432001-12-17  Akim Demaille  <akim@epita.fr>
19644
19645	* src/state.h (state_t): Rename lookaheads as lookaheadsp.
19646	nlookaheads is a new member.
19647	Adjust all users.
19648	* src/lalr.h (nlookaheads): Remove this orphan declaration.
19649	* src/lalr.c (initialize_lookaheads): Set nlookaheads for each
19650	state.
19651
196522001-12-17  Akim Demaille  <akim@epita.fr>
19653
19654	* src/files.h, src/files.c (open_files, close_files): Remove.
19655	* src/main.c (main): Don't open/close files, nor invoke lex_free,
19656	let...
19657	* src/reader.c (reader): Do it.
19658
196592001-12-17  Akim Demaille  <akim@epita.fr>
19660
19661	* src/conflicts.c (print_reductions): Formatting changes.
19662
196632001-12-17  Akim Demaille  <akim@epita.fr>
19664
19665	* src/conflicts.c (flush_shift): Also adjust lookaheadset.
19666	(flush_reduce): New.
19667	(resolve_sr_conflict): Adjust.
19668
196692001-12-17  Akim Demaille  <akim@epita.fr>
19670
19671	* src/output.c (output_obstack): Be static and rename as...
19672	(format_obstack): this, to avoid any confusion with files.c's
19673	output_obstack.
19674	* src/reader.h (muscle_obstack): Move to...
19675	* src/output.h: here, since it's defined in output.c.
19676
196772001-12-17  Akim Demaille  <akim@epita.fr>
19678
19679	* src/output.c (action_row, save_column, default_goto)
19680	(sort_actions, matching_state, pack_vector): Better variable
19681	locality.
19682
196832001-12-17  Akim Demaille  <akim@epita.fr>
19684
19685	* src/output.c: Various formatting changes.
19686
196872001-12-17  Akim Demaille  <akim@epita.fr>
19688
19689	* src/files.c (output_files): Free the output_obstack.
19690	* src/main.c (main): Call print and print_graph conditionally.
19691	* src/print.c (print): Work unconditionally.
19692	* src/print_graph.c (print_graph): Work unconditionally.
19693	* src/conflicts.c (log_resolution): Output only if verbose_flag.
19694
196952001-12-16  Marc Autret  <autret_m@epita.fr>
19696
19697	* src/output.c (actions_output): Fix. When we use %no-lines,
19698	there is one less line per action.
19699
197002001-12-16  Marc Autret  <autret_m@epita.fr>
19701
19702	* src/bison.simple: Remove a useless #line directive.
19703	s/#line %%line %%skeleton/#line %%line "%%parser-file-name"/'.
19704	* src/output.c (get_lines_number): New.
19705	(output_parser): Adjust, now takes care about the lines of a
19706	output muscles.
19707	Fix line numbering.
19708	(actions_output): Computes the number of lines taken by actions.
19709	(output_master_parser): Insert new skeleton which is the name of
19710	the output parser file name.
19711
197122001-12-15  Marc Autret  <autret_m@epita.fr>
19713
19714	* src/bison.simple [YYERROR_VERBOSE]: Restore backward compatibility.
19715
197162001-12-15  Marc Autret  <autret_m@epita.fr>
19717
19718	* src/output.c (output_gram): Keep track of the hairy one.
19719
197202001-12-15  Akim Demaille  <akim@epita.fr>
19721
19722	Make `make distcheck' work.
19723
19724	* lib/Makefile.am (INCLUDES): Add top_srcdir/intl, since hash uses
19725	system.h which uses libgettext.h.
19726
197272001-12-15  Akim Demaille  <akim@epita.fr>
19728
19729	* src/nullable.c (set_nullable): Useless rules must be skipped,
19730	otherwise, since we range over their symbols, we might look at a
19731	nonterminal which no longer ``exists'', i.e., it is not counted in
19732	`nvars', hence we overflow our arrays.
19733
197342001-12-15  Akim Demaille  <akim@epita.fr>
19735
19736	The header can also be produced directly, without any obstack!
19737	Yahoo!
19738
19739	* src/files.c, src/files.h (defines_obstack): Remove.
19740	(compute_header_macro): Global.
19741	(defines_obstack_save): Remove.
19742	* src/reader.c (parse_union_decl): No longer output to
19743	defines_obstack: its content can be found in the `stype' muscle
19744	anyway.
19745	(output_token_translations): Merge into...
19746	(symbols_output): this.
19747	Rename as...
19748	(symbols_save): this.
19749	(reader): Adjust.
19750	* src/output.c (header_output): New.
19751	(output): Call it.
19752
197532001-12-15  Akim Demaille  <akim@epita.fr>
19754
19755	* src/reader.c (parse_union_decl): Instead of handling two obstack
19756	simultaneously, use one to define the `stype' muscle, and use the
19757	value of the latter to fill defines_obstack.
19758	(copy_comment): Remove.
19759	(copy_comment2): Work for a single obstack.
19760	Rename as...
19761	(copy_comment): this.
19762
197632001-12-15  Akim Demaille  <akim@epita.fr>
19764
19765	* src/lex.c, src/lex.h (xgetc): No longer static.
19766	* src/reader.c (parse_union_decl): Revamp.
19767
197682001-12-15  Akim Demaille  <akim@epita.fr>
19769
19770	Still making progress in separating Bison into (i) input, (ii)
19771	process, (iii) output: now we can directly output the parser file
19772	without using table_obstack at all.
19773
19774	* src/files.c, src/files.h (table_obstack): Bye bye.
19775	(parser_file_name): New.
19776	* src/files.c (compute_output_file_names): Compute it.
19777	* src/output.c (actions_output, output_parser)
19778	(output_master_parser): To a file instead of an obstack.
19779
197802001-12-15  Akim Demaille  <akim@epita.fr>
19781
19782	Attach actions to rules, instead of pre-outputting them to
19783	actions_obstack.
19784
19785	* src/gram.h (rule_t): action and action_line are new members.
19786	* src/reader.c (symbol_list): Likewise.
19787	(copy_action): Save the actions within the rule.
19788	(packgram): Save them in rule_table.
19789	* src/output.c (actions_output): New.
19790	(output_parser): Use it on `%%actions'.
19791	(output_rule_data): Don't free rule_table.
19792	(output): Do it.
19793	(prepare): Don't save the `action' muscle.
19794	* src/bison.simple: s/%%action/%%actions/.
19795
197962001-12-15  Akim Demaille  <akim@epita.fr>
19797
19798	* src/reader.c (copy_action): When --yacc, don't append a `;'
19799	to the user action: let it fail if lacking.
19800	Suggested by Arnold Robbins and Tom Tromey.
19801
198022001-12-14  Akim Demaille  <akim@epita.fr>
19803
19804	* src/lex.c (literalchar): Simply return the char you decoded, non
19805	longer mess around with obstacks and int pointers.
19806	Adjust all callers.
19807
198082001-12-14  Akim Demaille  <akim@epita.fr>
19809
19810	* src/lex.c (literalchar): Don't escape the special characters,
19811	just decode them, and keep them as char (before, eol was output as
19812	the 2 char string `\n' etc.).
19813	* src/output.c (output_rule_data): Use quotearg to output the
19814	token strings.
19815
198162001-12-13  Paul Eggert  <eggert@twinsun.com>
19817
19818	* src/bison.simple (YYSIZE_T, YYSTACK_ALLOC, YYSTACK_FREE):
19819	Do not infringe on the global user namespace when using C++.
19820	(YYFPRINTF, YYSTDERR): New macros, needed for the above.
19821	All uses of `fprintf' and `stderr' changed.
19822
19823	* doc/bison.texinfo: Document YYFPRINTF, YYSTDERR.
19824
198252001-12-13  Akim Demaille  <akim@epita.fr>
19826
19827	The computation of nullable is broken: it doesn't handle empty
19828	RHS's properly.
19829
19830	* tests/torture.at (GNU AWK Grammar): New.
19831	* tests/sets.at (Nullable): New.
19832	* src/nullable.c (set_nullable): Instead of blindly looping over
19833	`ritems', loop over the rules, and then over their rhs's.
19834
19835	Work around Autotest bugs.
19836
19837	* src/warshall.c (bitmatrix_print): Don't use `+--+' as table
19838	frame, because Autotest understand lines starting with a `+' as
19839	traces from the shell.  Then, they are not processed properly.
19840	Admittedly an Autotest bug, but we don't have time to wait for
19841	Autotest to catch up.
19842	* tests/regression.at (Broken Closure): Adjust to the new table
19843	frames.
19844	Move to...
19845	* tests/sets.at: here.
19846
198472001-12-13  Akim Demaille  <akim@epita.fr>
19848
19849	* src/closure.c (closure): Use nrules instead of playing tricks
19850	with BITS_PER_WORD.
19851
198522001-12-13  Akim Demaille  <akim@epita.fr>
19853
19854	* src/print.c (print_actions): Output the handling of `$' as the
19855	traces do: shifting the token EOF.  Before EOF was treated as a
19856	nonterminal.
19857	* tests/regression.at: Adjust some tests.
19858	* src/print_graph.c (print_core): Complete the set of items via
19859	closure.  The next-to-final and final states are still unsatisfying,
19860	but that's to be addressed elsewhere.
19861	No longer output the rule numbers, but do output the state number.
19862	A single loop for the shifts + gotos is enough, but picked a
19863	distinct color for each.
19864	(print_graph): Initialize and finalize closure.
19865
198662001-12-13  Akim Demaille  <akim@epita.fr>
19867
19868	* src/reader.c (readgram): Remove dead code, an strip useless
19869	braces.
19870	(get_type): Remove, unused.
19871
198722001-12-12  Akim Demaille  <akim@epita.fr>
19873
19874	* src/complain.h, src/complain.c: Remove error_one_per_line, rely
19875	on that of lib/error.c.
19876
198772001-12-12  Akim Demaille  <akim@epita.fr>
19878
19879	Some hosts don't like `/' in includes.
19880
19881	* src/system.h: Include libgettext.h without qualifying the path.
19882	* src/Makefile.am (INCLUDES): Add $(top_srcdir)/intl, remove
19883	$(top_srcdir).
19884
198852001-12-11  Marc Autret  <autret_m@epita.fr>
19886
19887	* src/output.c (output_parser): Remove useless muscle.
19888
198892001-12-11  Marc Autret  <autret_m@epita.fr>
19890
19891	* src/bison.simple: Remove #line just before %%epilogue. It
19892	is now handled in ...
19893	* src/reader.c (read_additionnal_code): Add the output of a
19894	#line for the epilogue.
19895
198962001-12-10  Marc Autret  <autret_m@epita.fr>
19897
19898	* src/reader.c (copy_definition): Re-use CPP-outed code which
19899	replace precedent remove.
19900	* src/bison.simple: Remove #line before %%prologue because
19901	%%input-line is wrong at this time.
19902
199032001-12-10  Marc Autret  <autret_m@epita.fr>
19904
19905	* src/reader.c (symbols_output): Clean up.
19906	* src/output.c (output_gram, output): Clean up.
19907
199082001-12-10  Akim Demaille  <akim@epita.fr>
19909
19910	* src/lalr.c (initialize_lookaheads): New.  Extracted from...
19911	* src/LR0.c (set_state_table): here.
19912	* src/lalr.c (lalr): Call it.
19913
199142001-12-10  Akim Demaille  <akim@epita.fr>
19915
19916	* src/state.h (shifts): Remove the `number' member: shifts are
19917	attached to state, hence no longer need to be labelled with a
19918	state number.
19919
199202001-12-10  Akim Demaille  <akim@epita.fr>
19921
19922	Now that states have a complete set of members, the linked list of
19923	shifts is useless: just fill directly the state's shifts member.
19924
19925	* src/state.h (shifts): Remove the `next' member.
19926	* src/LR0.c (first_state, last_state): Remove.
19927	Adjust the callers.
19928	(augment_automaton): Don't look for the shifts that must be added
19929	a shift on EOF: it is those of the state we looked for!  But now,
19930	since shifts are attached, it is no longer needed to looking
19931	merely by its id: its number.
19932
199332001-12-10  Akim Demaille  <akim@epita.fr>
19934
19935	* src/LR0.c (augment_automaton): Better variable locality.
19936	Remove an impossible branch: if there is a state corresponding to
19937	the start symbol being shifted, then there is shift for the start
19938	symbol from the initial state.
19939
199402001-12-10  Akim Demaille  <akim@epita.fr>
19941
19942	* src/LR0.c (augment_automaton): Call `insert_eof_shifting_state'
19943	only when appropriate: when insert_start_shifting_state' is not
19944	invoked.
19945	* tests/regression.at (Rule Line Numbers): Adjust.
19946
199472001-12-10  Akim Demaille  <akim@epita.fr>
19948
19949	* src/LR0.c (augment_automaton): Now that all states have shifts,
19950	merge the two cases addition shifts to the initial state.
19951
199522001-12-10  Akim Demaille  <akim@epita.fr>
19953
19954	* src/lalr.c (set_state_table): Move to...
19955	* src/LR0.c: here.
19956	* src/lalr.c (lalr): Don't call it...
19957	* src/LR0.c (generate_states): do it.
19958	* src/LR0.h (first_state): Remove, only the table is used.
19959
199602001-12-10  Akim Demaille  <akim@epita.fr>
19961
19962	* src/LR0.h (first_shift, first_reduction): Remove.
19963	* src/lalr.c: Don't use first_shift: find shifts through the
19964	states.
19965
199662001-12-10  Akim Demaille  <akim@epita.fr>
19967
19968	* src/LR0.c: Attach shifts to states as soon as they are
19969	computed.
19970	* src/lalr.c (set_state_table): Instead of assigning shifts to
19971	state, just assert that the mapping was properly done.
19972
199732001-12-10  Akim Demaille  <akim@epita.fr>
19974
19975	* src/LR0.c (insert_start_shift): Rename as...
19976	(insert_start_shifting_state): this.
19977	(insert_eof_shifting_state, insert_accepting_state): New.
19978	(augment_automaton): Adjust.
19979	Better locality of the variables.
19980	When looking if the start_symbol is shifted from the initial
19981	state, using `while (... symbol != start_symbol ...)' sounds
19982	better than `while (... symbol < start_symbol ...)': If fail
19983	to see how the order between symbols could be relevant!
19984
199852001-12-10  Akim Demaille  <akim@epita.fr>
19986
19987	* src/getargs.h: Don't declare `spec_name_prefix' and
19988	`spec_file_prefix', declared by src/files.h.
19989	* src/files.c, src/files.h: Default for spec_name_prefix is "yy".
19990	* src/muscle_tab.c (muscle_init): Default prefix to NULL.
19991	* src/output.c (prepare): Adjust.
19992	* src/reader.c (symbols_output): Likewise.
19993	* src/vmsgetargs.c: Vaguely adjust, but who cares?
19994
199952001-12-10  Akim Demaille  <akim@epita.fr>
19996
19997	* src/muscle_tab.c (muscle_init): NULL is a better default than
19998	`"0"'.
19999
200002001-12-10  Akim Demaille  <akim@epita.fr>
20001
20002	* src/reader.c (reader): Calling symbols_output once is enough.
20003
200042001-12-10  Akim Demaille  <akim@epita.fr>
20005
20006	Now that states have a complete set of members, the linked list of
20007	reductions is useless: just fill directly the state's reductions
20008	member.
20009
20010	* src/state.h (struct reductions): Remove member `number' and
20011	`next'.
20012	* src/LR0.c (first_reduction, last_reduction): Remove.
20013	(save_reductions): Don't link the new reductions, store them in
20014	this_state.
20015	* src/lalr.c (set_state_table): No need to attach reductions to
20016	states, it's already done.
20017	* src/output.c (output_actions): No longer free the shifts, then
20018	the reductions, then the states: free all the states and their
20019	members.
20020
200212001-12-10  Akim Demaille  <akim@epita.fr>
20022
20023	* src/options.c (OPTN, DRTV, BOTH): New.
20024	(option_table): Use them.
20025
20026	* src/muscle_tab.c: Don't include xalloc.h and string.h: that's
20027	the job of system.h.
20028	* src/options.c: Don't include stdio.h and xalloc.h for the same
20029	reasons.
20030
200312001-12-10  Akim Demaille  <akim@epita.fr>
20032
20033	* src/output.c (output, prepare): Make sure the values of the
20034	muscles `action' and `prologue' are 0-terminated.
20035
200362001-12-10  Akim Demaille  <akim@epita.fr>
20037
20038	Clean up GCC warnings.
20039
20040	* src/reader.c (copy_action): `buf' is not used.
20041	(parse_skel_decl): Be static.
20042	* src/muscle_tab.c (mhash1, mhash2, muscle_insert): Preserve `const'.
20043	* src/options.h (create_long_option_table): Have a real prototype.
20044	* lib/hash.c, lib/hash.h (hash_insert, hash_insert_at, hash_delete)
20045	(hash_delete_at): Return const void *.
20046	Adjust casts to preserve the const.
20047
200482001-12-10  Akim Demaille  <akim@epita.fr>
20049
20050	* configure.in: Require 2.52g.
20051	M4 is not needed, but AUTOM4TE is.
20052	* m4/m4.m4: Remove.
20053	* tests/Makefile.am: Adjust.
20054
200552001-12-10  Akim Demaille  <akim@epita.fr>
20056
20057	One structure for states is enough, even though theoretically
20058	there are LR(0) states and LALR(1) states.
20059
20060	* src/lalr.h (state_t): Remove.
20061	(state_table): Be state_t **, not state_t *.
20062	* src/state.h (core, CORE_ALLOC): Rename as...
20063	(state_t, STATE_ALLOC): this.
20064	Add the LALR(1) members: shifts, reductions, errs.
20065	* src/LR0.c (state_table): Rename as...
20066	(state_hash): this, to avoid name clashes with the global
20067	`state_table'.
20068	* src/print_graph.c, src/LR0.c, src/LR0.h, src/conflicts.c
20069	* src/lalr.c, src/lalr.h, src/output.c, src/print.c: Adjust.
20070
200712001-12-10  Akim Demaille  <akim@epita.fr>
20072
20073	Bison dumps core on bash.y.
20074	Reported by Pascal Bart.
20075
20076	* src/warshall.c (bitmatrix_print): New.
20077	(TC): Use it.
20078	When performing a transitive closure R(i, j) && R(j, k) => R(i, k),
20079	j must be the outer loop.
20080	* tests/regression.at (Broken Closure): New.
20081
200822001-12-05  Akim Demaille  <akim@epita.fr>
20083
20084	* tests/atlocal.in (CPPFLAGS): Do not leave a space between -I and
20085	its argument.
20086	Reported by Peter Hamorsky.
20087
200882001-12-05  Akim Demaille  <akim@epita.fr>
20089
20090	* src/conflicts.c (err_table): Remove.
20091	(resolve_sr_conflict): Adjust.
20092	* src/lalr.h (state_t.reduction_table, state_t.shift_table):
20093	Rename as...
20094	(state_t.reductions, state_t.shifts): this.
20095
200962001-12-05  Akim Demaille  <akim@epita.fr>
20097
20098	* src/reduce.c (reduce_grammar_tables): No longer disable the
20099	removal of useless rules via CPP but via `if (0)', so that the
20100	compiler still check the code is valid.
20101	For instance, it should have noticed `rline' no longer exists: use
20102	the `line' member of rule_t.
20103	* src/gram.c (dummy, rline): Remove, unused.
20104
201052001-12-05  Akim Demaille  <akim@epita.fr>
20106
20107	* src/output.c (pack_vector): Use assert, not berror.
20108	* src/main.c (berror): Remove, unused.
20109
201102001-12-05  Akim Demaille  <akim@epita.fr>
20111
20112	New experimental feature: if --verbose --trace output all the
20113	items of a state, not only its kernel.
20114
20115	* src/print.c (print_core): If `trace_flag', then invoke closure
20116	before outputting the items of the state (print_core is no longer
20117	a correct name them).
20118	(print_results): Invoke new_closure/free_closure if needed.
20119
201202001-12-05  Akim Demaille  <akim@epita.fr>
20121
20122	* src/LR0.c (new_itemsets): Use nshifts only, not shiftcount.
20123	* src/closure.c, src/closure.h (itemsetsize): Rename as...
20124	(nitemset): for consistency with the rest of the project.
20125
201262001-12-05  Akim Demaille  <akim@epita.fr>
20127
20128	* src/closure.c (print_closure): Improve.
20129	(closure): Use it for printing input and output.
20130
201312001-12-05  Akim Demaille  <akim@epita.fr>
20132
20133	* src/closure.c (FIRSTS, FDERIVES): Adjust to reality: they are
20134	indexed by nonterminals.
20135
201362001-12-05  Akim Demaille  <akim@epita.fr>
20137
20138	* src/warshall.c (TC, RTC): De-obsfucate (source reduced to 22% of
20139	what it was!).
20140	* src/warshall.h: Remove accidental duplication of the content.
20141
201422001-12-05  Akim Demaille  <akim@epita.fr>
20143
20144	* src/closure.c (set_fderives): De-obfuscate.
20145
201462001-12-05  Akim Demaille  <akim@epita.fr>
20147
20148	* src/closure.c (print_firsts, print_fderives): De-obfuscate.
20149
201502001-12-05  Akim Demaille  <akim@epita.fr>
20151
20152	* src/closure.c (set_firsts): De-obfuscate.
20153
201542001-12-05  Akim Demaille  <akim@epita.fr>
20155
20156	* src/output.c (action_row): De-obfuscate
20157	using the good o' techniques: arrays not pointers, variable
20158	locality, BITISSET, RESETBIT etc.
20159
201602001-12-05  Akim Demaille  <akim@epita.fr>
20161
20162	Pessimize the code to simplify it: from now on, all the states
20163	have a valid SHIFTS, which NSHIFTS is possibly 0.
20164
20165	* src/LR0.c (shifts_new): Be global and move to..
20166	* src/state.c, src/state.h: here.
20167	* src/conflicts, src/lalr.c, src/output.c, src/print.c,
20168	* src/print_graph: Adjust.
20169
201702001-12-05  Akim Demaille  <akim@epita.fr>
20171
20172	* src/state.h (SHIFT_DISABLE, SHIFT_IS_DISABLED): New.
20173	* src/conflicts.c: Use it.
20174	Restore a few missing `if (!SHIFT_IS_DISABLED)' which were
20175	incorrectly ``simplified''.
20176
201772001-12-05  Akim Demaille  <akim@epita.fr>
20178
20179	* src/conflicts.c (flush_shift, resolve_sr_conflict): De-obfuscate
20180	using the good o' techniques: arrays not pointers, variable
20181	locality, BITISSET, RESETBIT etc.
20182
201832001-12-05  Akim Demaille  <akim@epita.fr>
20184
20185	* src/state.h (SHIFT_SYMBOL): New.
20186	* src/conflicts.c: Use it to deobfuscate.
20187
201882001-12-05  Akim Demaille  <akim@epita.fr>
20189
20190	* src/conflicts.c (count_sr_conflicts, count_rr_conflicts)
20191	(print_reductions): De-obfuscate using the good o' techniques:
20192	arrays not pointers, variable locality, BITISSET.
20193
201942001-12-05  Akim Demaille  <akim@epita.fr>
20195
20196	* src/conflicts.c (print_reductions): Arrays, not pointers.
20197	Use BITISSET.
20198
201992001-12-05  Akim Demaille  <akim@epita.fr>
20200
20201	* src/conflicts.c (print_reductions): Pessimize, but clarify.
20202
202032001-12-05  Akim Demaille  <akim@epita.fr>
20204
20205	* src/conflicts.c (print_reductions): Improve variable locality.
20206
202072001-12-05  Akim Demaille  <akim@epita.fr>
20208
20209	* src/conflicts.c (print_reductions): Pessimize, but clarify.
20210
202112001-12-05  Akim Demaille  <akim@epita.fr>
20212
20213	* src/conflicts.c (print_reductions): Improve variable locality.
20214
202152001-12-05  Akim Demaille  <akim@epita.fr>
20216
20217	* src/state.h (SHIFT_IS_ERROR, SHIFT_IS_GOTO, SHIFT_IS_SHIFT): New.
20218	* src/lalr.c: Use them.
20219
202202001-12-05  Akim Demaille  <akim@epita.fr>
20221
20222	* src/LR0.c (augment_automaton): Formatting changes.
20223	Better variable locality.
20224
202252001-12-05  Akim Demaille  <akim@epita.fr>
20226
20227	* src/lalr.c (matrix_print): New.
20228	(transpose): Use it.
20229	Use arrays instead of pointers.
20230
202312001-12-05  Akim Demaille  <akim@epita.fr>
20232
20233	* src/lalr.c (maxrhs): Move to...
20234	* src/gram.c, src/gram.h (ritem_longest_rhs): here.
20235	* src/lalr.c (build_relations): Adjust.
20236
202372001-12-05  Akim Demaille  <akim@epita.fr>
20238
20239	* src/lalr.c (transpose): Free the memory allocated to the
20240	argument, as it is replaced by the results by the unique caller.
20241	(build_relations): Merely invoke transpose: it handles the memory
20242	deallocation.
20243	Improve variable locality.
20244	Avoid variables used as mere abbreviations.
20245	(compute_lookaheads): Use arrays instead of pointers.
20246
202472001-12-05  Akim Demaille  <akim@epita.fr>
20248
20249	* src/lalr.c (initialize_F): Improve variable locality.
20250	Avoid variables used as mere abbreviations.
20251
202522001-12-05  Akim Demaille  <akim@epita.fr>
20253
20254	* src/derives.c (print_derives): Display the ruleno.
20255	* src/lalr.c (initialize_F, transpose): Better variable locality
20256	to improve readability.
20257	Avoid variables used as mere abbreviations.
20258
202592001-12-05  Akim Demaille  <akim@epita.fr>
20260
20261	* src/lalr.c (traverse): Use arrays instead of pointers.
20262
202632001-12-05  Akim Demaille  <akim@epita.fr>
20264
20265	* src/nullable.c (set_nullable): Use a for loop to de-obfuscate
20266	the handling of squeue.
20267	`symbol >= 0' is wrong now, use `rule_table[ruleno].useful'.
20268
202692001-12-05  Akim Demaille  <akim@epita.fr>
20270
20271	Because useless nonterminals are now kept alive (instead of being
20272	`destroyed'), we now sometimes examine them, and store information
20273	related to them.  Hence we need to know their number, and adjust
20274	memory allocations.
20275
20276	* src/reduce.c, src/reduce.h (nuseless_nonterminals): No longer
20277	static.
20278	* src/LR0.c (allocate_itemsets): The memory allocated to
20279	`symbol_count' was used for two different purpose: once to count
20280	the number of occurrences of each symbol, and later reassigned to
20281	`shift_symbol', containing the symbol that can be shifted from a
20282	given state.
20283	Deobfuscate, i.e., allocate, use and free `symbol_count' here
20284	only, and...
20285	(new_itemsets): Allocate `shift_symbol' here.
20286	(allocate_itemsets): symbol_count includes useless nonterminals.
20287	Make room for them.
20288	(free_storage): Use `free', not `XFREE', for pointers that cannot
20289	be null.
20290
202912001-12-05  Akim Demaille  <akim@epita.fr>
20292
20293	* src/nullable.c (set_nullable): Deobfuscate the handling of
20294	ritem.
20295	`symbol >= 0' is wrong now, use `rule_table[ruleno].useful'.
20296
202972001-12-05  Akim Demaille  <akim@epita.fr>
20298
20299	* src/gram.c, src/gram.h (ritem_print): New.
20300	* src/gram.c (dummy): Remove, now there is actual code in gram.c.
20301	(This useless function was defined only to work around VMS linkers
20302	that can't handle compilation units with variables only).
20303	* src/reduce.c (dump_grammar): Use it to trace the construction of
20304	ritem.
20305
203062001-12-04  Paul Eggert  <eggert@twinsun.com>
20307
20308	* src/bison.simple (union yyalloc): Change member names
20309	to be the same as the stack names.
20310	(yyparse): yyptr is now union yyalloc *, not char *.
20311	(YYSTACK_RELOCATE): Likewise.  This avoids a GCC warning,
20312	and may generate better code on some machines.
20313	(yystpcpy): Use prototype if __STDC__ is defined, not just
20314	if __cplusplus is defined.
20315
203162001-11-30  Akim Demaille  <akim@epita.fr>
20317
20318	* configure.in (WARNING_CFLAGS): Add -Werror when possible.
20319	(CFLAGS): Do not include the WARNING_CFLAGS here, since GNU
20320	Gettext doesn't compile cleanly, and dies with -Werror.
20321	* src/Makefile.am, lib/Makefile.am, tests/atlocal.in (CFLAGS):
20322	Include WARNING_CFLAGS here.
20323	* lib/xstrdup.c: Include xalloc.h, so that xstrdup be declared
20324	before being defined.
20325
203262001-11-27  Paul Eggert  <eggert@twinsun.com>
20327
20328	* lib/quotearg.h (quotearg_n, quotearg_n_style):
20329	First arg is int, not unsigned.
20330	* lib/quotearg.c (quotearg_n, quotearg_n_style): Likewise.
20331	(SIZE_MAX, UINT_MAX): New macros.
20332	(quotearg_n_options): Abort if N is negative.
20333	Avoid overflow check on hosts where size_t is 64 bits and int
20334	is 32 bits, as overflow is impossible there.
20335	Fix off-by-one typo that caused unnecessary reallocation.
20336
203372001-11-29  Paul Eggert  <eggert@twinsun.com>
20338
20339	Name space cleanup in generated parser.
20340
20341	* doc/bison.texinfo (Bison Parser): Discuss system headers
20342	and their effect on the user name space.
20343
20344	* src/bison.simple:
20345	(YYSTACK_ALLOC, YYSTACK_FREE, union yyalloc, YYSTACK_GAP_MAX,
20346	YYSTACK_BYTES, YYSTACK_RELOCATE): Do not define unless necessary,
20347	i.e. unless ! defined (yyoverflow) || defined (YYERROR_VERBOSE).
20348
20349	(YYSIZE_T): New macro.  Use it instead of size_t, to avoid infringing
20350	on user names when possible.
20351
20352	(YYSTACK_USE_ALLOCA): Do not define; just use any existing defn.
20353	Simplify test for whather <alloca.h> exists.
20354
20355	(<stdlib.h>): Include if we will use malloc, and if standard C or C++.
20356
20357	(<stdio.h>): Include if YYDEBUG.
20358
20359	(yymemcpy): Renamed from __yy_memcpy.  Do not define unless
20360	! defined (yyoverflow) && ! defined (yymemcpy).
20361
20362	(yymemcpy, yyparse): Rename local variables as needed so that
20363	they all begin with 'yy'.
20364
20365	(yystrlen, yystpcpy): New functions.
20366
20367	(YY_DECL_NON_LSP_VARIABLES): Renamed from _YY_DECL_VARIABLES.
20368	All uses changed.
20369
20370	(yyparse): size_t -> YYSIZE_T.  Use yystrlen and yystpcpy
20371	instead of relying on string.h functions.  Use YYSTACK_ALLOC
20372	and YYSTACK_FREE instead of malloc and free.
20373
203742001-11-30  Akim Demaille  <akim@epita.fr>
20375
20376	* src/bison.simple (YYSTYPE, YYLTYPE): Move their definitions
20377	before their first uses.
20378	(YYBISON, YYPURE): Move to the top of the output.
20379
203802001-11-30  Akim Demaille  <akim@epita.fr>
20381
20382	* tests/reduce.at (Useless Nonterminals): Fix.
20383
203842001-11-30  Akim Demaille  <akim@epita.fr>
20385
20386	* src/bison.simple (YYSTACK_FREE): Use `do {;} while (0)' as empty
20387	if body instead of `;' to pacify GCC's warnings.
20388
203892001-11-30  Akim Demaille  <akim@epita.fr>
20390
20391	Instead of mapping the LHS of unused rules to -1, keep the LHS
20392	valid, but flag the rules as invalid.
20393
20394	* src/gram.h (rule_t): `useful' is a new member.
20395	* src/print.c (print_grammar): Adjust.
20396	* src/derives.c (set_derives): Likewise.
20397	* src/reader.c (packgram, reduce_output): Likewise.
20398	* src/reduce.c (reduce_grammar_tables): Likewise.
20399	* tests/reduce.at (Underivable Rules, Useless Rules): New.
20400
204012001-11-30  Akim Demaille  <akim@epita.fr>
20402
20403	* src/reduce.c (reduce_output): Formatting changes.
20404	* src/print.c (print_results, print_grammar): Likewise.
20405	* tests/regression.at (Rule Line Numbers)
20406	(Solved SR Conflicts, Unresolved SR Conflicts): Adjust.
20407
204082001-11-30  Akim Demaille  <akim@epita.fr>
20409
20410	* src/reduce.c (nonterminals_reduce): Instead of throwing away
20411	useless nonterminals, move them at the end of the symbol arrays.
20412	(reduce_output): Adjust.
20413	* tests/reduce.at (Useless Nonterminals): Adjust.
20414
204152001-11-30  Akim Demaille  <akim@epita.fr>
20416
20417	* src/reduce.c: Various comment/formatting changes.
20418	(nonterminals_reduce): New, extracted from...
20419	(reduce_grammar_tables): here.
20420	(reduce_grammar): Call nonterminals_reduce.
20421
204222001-11-29  Paul Eggert  <eggert@twinsun.com>
20423
20424	* src/bison.simple (YYSTACK_REALLOC): Remove.
20425	(YYSTACK_ALLOC): Resurrect this macro, with its old meaning.
20426	(YYSTACK_FREE, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYSTACK_RELOCATE):
20427	New macros.
20428	(union yyalloc): New type.
20429	(__yy_memcpy): Last arg is size_t, not unsigned int, to remove
20430	an arbitrary restriction on hosts where size_t is wider than int.
20431
20432	(yyparse): Don't dump core if alloca or malloc fails; instead, report
20433	a parser stack overflow.  Allocate just one block of memory for all
20434	three stacks, instead of allocating three blocks; this typically is
20435	faster and reduces fragmentation.
20436
20437	Do not limit the number of items in the stack to a value that fits
20438	in 'int', as this is an arbitrary limit on hosts with 64-bit
20439	size_t and 32-bit int.
20440
204412001-11-29  Marc Autret  <autret_m@epita.fr>
20442
20443	* tests/calc.at [AT_DATA_CALC_Y]: Use %error-verbose instead
20444	of defining YYERROR_VERBOSE.
20445	[AT_DATA]: $4 is now out of C declarations in the prologue.
20446
204472001-11-28  Marc Autret  <autret_m@epita.fr>
20448
20449	* src/reader.c (parse_dquoted_param): New.
20450	(parse_skel_decl): Use it.
20451	* src/lex.h: Add its prototype.
20452	* src/lex.c (literalchar): Become not static.
20453
204542001-11-28  Marc Autret  <autret_m@epita.fr>
20455
20456	* src/output.h: And put its extern declaration here.
20457	* src/output.c (error_verbose): Define here.
20458	(prepare): Echo name modification.
20459	* src/getargs.h: Clean its extern declaration.
20460	* src/getargs.c (error_verbose_flag): Remove.
20461	(getargs): Remove case 'e'.
20462	* src/options.c (option_table): 'error-verbose' is now seen as simple
20463	percent option.
20464	Include output.h.
20465
20466	* src/reader.c (read_declarations): Remove case tok_include.
20467	(parse_include_decl): Remove.
20468	* src/lex.h (token_t): Remove tok_include.
20469	* src/options.c (option_table): 'include' is now a simple command line
20470	option.
20471
204722001-11-28  Marc Autret  <autret_m@epita.fr>
20473
20474	* src/bison.simple: Adjust muscle names.
20475	* src/muscle_tab.c (muscle_init): Also rename the muscles.
20476	* src/output.c (prepare): s/_/-/ for the muscles names.
20477	(output_parser): When scanning for a muscle, allow '-' instead of '_'.
20478
204792001-11-28  Marc Autret  <autret_m@epita.fr>
20480
20481	* src/bison.simple: Fix debug.
20482	[YYERROR_VERBOSE]: Re-integrate as an internal macro.
20483
204842001-11-28  Akim Demaille  <akim@epita.fr>
20485
20486	* src/LR0.c (shifts_new): New.
20487	(save_shifts, insert_start_shift, augment_automaton): Use it.
20488
204892001-11-28  Akim Demaille  <akim@epita.fr>
20490
20491	* src/closure.c (closure): `b' and `ruleno' denote the same value:
20492	keep ruleno only.
20493
204942001-11-28  Akim Demaille  <akim@epita.fr>
20495
20496	* src/closure.c (closure): Instead of looping over word in array
20497	then bits in words, loop over bits in array.
20498
204992001-11-28  Akim Demaille  <akim@epita.fr>
20500
20501	* src/closure.c (closure): No longer optimize the special case
20502	where all the bits of `ruleset[r]' are set to 0, to make the code
20503	clearer.
20504
205052001-11-28  Akim Demaille  <akim@epita.fr>
20506
20507	* src/closure.c (closure): `r' and `c' are new variables, used to
20508	de-obfuscate accesses to RULESET and CORE.
20509
205102001-11-28  Akim Demaille  <akim@epita.fr>
20511
20512	* src/reduce.c (reduce_print): Use ngettext.
20513	(dump_grammar): Improve the trace accuracy.
20514
205152001-11-28  Akim Demaille  <akim@epita.fr>
20516
20517	* src/reduce.c (dump_grammar): Don't translate trace messages.
20518
205192001-11-28  Akim Demaille  <akim@epita.fr>
20520
20521	* tests/reduce.at (Useless Terminals, Useless Nonterminals): New.
20522	* src/reduce.c (reduce_grammar_tables): Do not free useless tags,
20523	as all tags are free'ed afterwards.
20524	From Enrico Scholz.
20525
205262001-11-27  Paul Eggert  <eggert@twinsun.com>
20527
20528	* src/bison.simple (YYSTACK_REALLOC): Fix typo that caused us to
20529	use alloca when we didn't want to, and vice versa.
20530
205312001-11-27  Marc Autret  <autret_m@epita.fr>
20532
20533	* src/muscle_tab.c (muscle_init): Remove 'verbose' muscle
20534	initialization.
20535	* src/output.c (prepare): Remove its update.
20536
205372001-11-27  Marc Autret  <autret_m@epita.fr>
20538
20539	* tests/torture.at [AT_DATA]: Remove YYERROR_VERBOSE definition.
20540	Use %error-verbose.
20541
205422001-11-27  Marc Autret  <autret_m@epita.fr>
20543
20544	* src/bison.simple: Remove YYERROR_VERBOSE using.
20545	Use %%error_verbose.
20546	(yyparse): Likewise.
20547	* src/output.c (prepare): Give its final value.
20548	* src/muscle_tab.c (muscle_init): Init new muscle 'error_verbose'.
20549	* src/getargs.h: Add its extern declaration.
20550	* src/getargs.c (error_verbose_flag): New int.
20551	(getargs): Update to catch new case.
20552	* src/options.c (option_table): 'error-verbose' is a new option.
20553	(shortopts): Update.
20554
205552001-11-27  Akim Demaille  <akim@epita.fr>
20556
20557	* src/system.h: Use intl/libgettext.h.
20558	* src/Makefile.am (INCLUDES): Add -I $(top_srcdir).
20559
205602001-11-27  Akim Demaille  <akim@epita.fr>
20561
20562	* tests/torture.at (Exploding the Stack Size with Malloc):
20563	s/YYSTACK_USE_ALLOCA_ALLOCA/YYSTACK_USE_ALLOCA/.
20564
205652001-11-27  Akim Demaille  <akim@epita.fr>
20566
20567	* src/files.c: Include error.h.
20568	Reported by Hans Aberg.
20569
205702001-11-26  Marc Autret  <autret_m@epita.fr>
20571
20572	* src/reader.c (parse_include_decl): New, not yet implemented.
20573	(read_declarations): Add case tok_include.
20574	* src/getargs.h (include): Add its extern definition.
20575	* src/getargs.c (include): New const char *.
20576	(getargs): Add case '-I'.
20577	* src/options.c (option_table): Add include as command line and
20578	percent option.
20579	* src/lex.h (token_t): Add tok_include.
20580
205812001-11-26  Akim Demaille  <akim@epita.fr>
20582
20583	* src/reader.c (readgram): Make sure rules for mid-rule actions
20584	have a lineno equal to that of their host rule.
20585	Reported by Hans Aberg.
20586	* tests/regression.at (Rule Line Numbers): New.
20587
205882001-11-26  Akim Demaille  <akim@epita.fr>
20589
20590	* src/LR0.c (allocate_itemsets): kernel_size contains ints, not
20591	size_ts.
20592
205932001-11-26  Akim Demaille  <akim@epita.fr>
20594
20595	* src/complain.c, src/complain.h (error): Remove, provided by
20596	lib/error.[ch].
20597
205982001-11-26  Akim Demaille  <akim@epita.fr>
20599
20600	* src/reader.c (read_declarations): Don't abort on tok_illegal,
20601	issue an error message.
20602	* tests/regression.at (Invalid %directive): New.
20603	Reported by Hans Aberg.
20604
206052001-11-26  Akim Demaille  <akim@epita.fr>
20606
20607	* configure.in: Invoke AC_FUNC_OBSTACK and AC_FUNC_ERROR_AT_LINE.
20608	* lib/Makefile.am (libbison_a_SOURCES): Adjust.
20609
206102001-11-26  Akim Demaille  <akim@epita.fr>
20611
20612	* src/conflicts.c (conflicts_print): Don't complain at all when
20613	there are no reduce/reduce conflicts, and as many shift/reduce
20614	conflicts as expected.
20615	* tests/regression.at (%expect right): Adjust.
20616
206172001-11-23  Akim Demaille  <akim@epita.fr>
20618
20619	* lib/alloca.c: Update, from fileutils.
20620
206212001-11-23  Akim Demaille  <akim@epita.fr>
20622
20623	* lib/Makefile.am (libbison_a_LIBADD): Add @ALLOCA@.
20624
206252001-11-23  Akim Demaille  <akim@epita.fr>
20626
20627	* src/system.h: Include alloca.h.
20628	* src/main.c (main) [C_ALLOCA]: Call alloca (0).
20629
206302001-11-23  Akim Demaille  <akim@epita.fr>
20631
20632	* src/print_graph.c (print_actions): Remove `rule', unused.
20633	* src/LR0.c (kernel_size): Contain `int' instead of `size_t' to
20634	pacify GCC's signed < unsigned warnings.
20635	* src/closure.c (itemsetsize): Likewise.
20636	* src/reader.c (symbol_list_new): Static.
20637
206382001-11-23  Akim Demaille  <akim@epita.fr>
20639
20640	Attaching lineno to buckets is stupid, since only one copy of each
20641	symbol is kept, only the line of the first occurrence is kept too.
20642
20643	* src/symtab.h, src/symtab.c (bucket): Remove the line member.
20644	* src/reader.c (rline_allocated): Remove, unused.
20645	(symbol_list): Have a `line' member.
20646	(symbol_list_new): New.
20647	(readgram): Use it.
20648	* src/print.c (print_grammar): Output the rule line numbers.
20649	* tests/regression.at (Solved SR Conflicts)
20650	(Unresolved SR Conflicts): Adjust.
20651	Reported by Hans Aberg.
20652
206532001-11-22  Marc Autret  <autret_m@epita.fr>
20654
20655	* src/bison.simple [YYERROR_VERBOSE]: Force its value to be 1 or 0.
20656
206572001-11-22  Marc Autret  <autret_m@epita.fr>
20658
20659	* src/muscle_tab.c (muscle_init): Remove initialization of
20660	skeleton muscle.
20661	* src/output.c (output_master_parser): Do it here.
20662
206632001-11-20  Akim Demaille  <akim@epita.fr>
20664
20665	* po/sv.po: New.
20666	* configure.in (ALL_LINGUAS): Adjust.
20667	* po/POTFILE.in: Remove `nullable.c' and `derives.c' which no
20668	longer contains strings to translate.
20669
206702001-11-19  Akim Demaille  <akim@epita.fr>
20671
20672	* src/conflicts.c (conflicts_print): Add a missing \n.
20673
206742001-11-19  Akim Demaille  <akim@epita.fr>
20675
20676	* src/nullable.c (nullable_print): New.
20677	(set_nullable): Call it when tracing.
20678	Better locality of variables.
20679
206802001-11-19  Akim Demaille  <akim@epita.fr>
20681
20682	* src/print.c (print_actions): Better locality of variables.
20683
206842001-11-19  Akim Demaille  <akim@epita.fr>
20685
20686	* src/derives.c (print_derives): Fix and enrich.
20687	* src/closure.c (print_fderives): Likewise.
20688
206892001-11-19  Akim Demaille  <akim@epita.fr>
20690
20691	* src/closure.c (itemsetend): Remove, replaced with...
20692	(itemsetsize): new.
20693
206942001-11-19  Akim Demaille  <akim@epita.fr>
20695
20696	* src/LR0.c (kernel_end): Remove, replaced with...
20697	(kernel_size): new.
20698
206992001-11-19  Akim Demaille  <akim@epita.fr>
20700
20701	* src/conflicts.c (set_conflicts): Use arrays instead of pointers
20702	to clarify.
20703
207042001-11-19  Akim Demaille  <akim@epita.fr>
20705
20706	* src/closure.c (closure): Use arrays instead of pointers to clarify.
20707
207082001-11-19  Akim Demaille  <akim@epita.fr>
20709
20710	* src/closure.c, src/derives.c, src/nullable.c: Adjust various
20711	trace messages.
20712	* src/LR0.c: Likewise.
20713	(allocate_itemsets): Use arrays instead of pointers to clarify.
20714
207152001-11-19  Akim Demaille  <akim@epita.fr>
20716
20717	* src/getargs.c (statistics_flag): Replace with...
20718	(trace_flag): New.
20719	(longopts): Accept --trace instead of --statistics.
20720	* src/getargs.h, src/options.c: Adjust.
20721	* src/LR0.c, src/closure.c, src/derives.c, src/nullable.c,
20722	* src/reduce.c: Use trace_flags instead of the CPP conditional TRACE.
20723
207242001-11-19  Akim Demaille  <akim@epita.fr>
20725
20726	* src/LR0.c (new_itemsets, get_state): Use more arrays and fewer
20727	pointers to clarify the code.
20728	(save_reductions, save_shifts): Factor common parts of alternatives.
20729
207302001-11-19  Akim Demaille  <akim@epita.fr>
20731
20732	* src/LR0.c (new_state, get_state): Complete TRACE code.
20733	* src/closure.c: Include `reader.h' to get `tags', needed by the
20734	trace code.
20735	Rename the conditional DEBUG as TRACE.
20736	Output consistently TRACEs to stderr, not stdout.
20737	* src/derives.c: Likewise.
20738	* src/reduce.c: (inaccessable_symbols): Using if is better style
20739	than goto.
20740	Use `#if TRACE' instead of `#if 0' for tracing code.
20741
207422001-11-19  Akim Demaille  <akim@epita.fr>
20743
20744	* src/system.h (LIST_FREE, shortcpy): New.
20745	* src/LR0.c: Use them.
20746	* src/output.c (free_itemsets, free_reductions, free_shifts):
20747	Remove, replaced by LIST_FREE.
20748
207492001-11-19  Akim Demaille  <akim@epita.fr>
20750
20751	* src/state.h (CORE_ALLOC, SHIFTS_ALLOC, ERRS_ALLOC)
20752	(REDUCTIONS_ALLOC):  New.
20753	* src/LR0.c, src/conflicts.c: Use them to de-obfuscate memory
20754	allocation.
20755
207562001-11-19  Akim Demaille  <akim@epita.fr>
20757
20758	* src/LR0.c (new_state): Complete trace code.
20759	* src/nullable.c (set_nullable): Don't translate traces.
20760
207612001-11-19  Akim Demaille  <akim@epita.fr>
20762
20763	* src/print_graph.c (print_core): Better locality of variables.
20764	* src/print.c (print_core): Likewise.
20765
207662001-11-19  Akim Demaille  <akim@epita.fr>
20767
20768	* src/vcg.c: You do the output, so you are responsible of the
20769	handling of VCG syntax, in particular: use quotearg.
20770	* src/print_graph.c: Don't.
20771	(print_actions): Don't output the actions as part of the nodes,
20772	since that's the job of the edges.
20773	(print_state): Don't output by hand: fill the node description,
20774	and ask for its output.
20775
207762001-11-19  Akim Demaille  <akim@epita.fr>
20777
20778	* src/bison.simple (yyparse): When verbosely reporting an error,
20779	no longer put additional quotes around token names.
20780	* tests/calc.at: Adjust.
20781
207822001-11-19  Akim Demaille  <akim@epita.fr>
20783
20784	* src/symtab.h, src/symtab.c: `line' is a new member of `bucket'.
20785	* src/reader.c (record_rule_lines, rline, rline_allocated): Remove.
20786	* src/output.c: Adjust.
20787
207882001-11-19  Akim Demaille  <akim@epita.fr>
20789
20790	* src/gram.h (rprec, rprecsym, rassoc): Remove, now part of...
20791	(rule_t): this.
20792	* src/conflicts.c, src/reader.c, src/reduce.c: Adjust.
20793
207942001-11-19  Akim Demaille  <akim@epita.fr>
20795
20796	* src/gram.h (rule_t): New.
20797	(rule_table): New.
20798	(rrhs, rlhs): Remove, part of state_t.
20799	* src/print_graph.c, src/closure.c, src/conflicts.c, src/derives.c,
20800	* src/lalr.c, src/nullable.c, src/output.c, src/print.c,
20801	* src/reader.c, src/reduce.c: Adjust.
20802
208032001-11-19  Akim Demaille  <akim@epita.fr>
20804
20805	* src/reader.c (symbols_output): New, extracted from...
20806	(packsymbols): Here.
20807	(reader): Call it.
20808
208092001-11-19  Akim Demaille  <akim@epita.fr>
20810
20811	* src/lalr.c (set_maxrhs, maxrhs): Remove, replaced with...
20812	(maxrhs): this new function.
20813
208142001-11-19  Akim Demaille  <akim@epita.fr>
20815
20816	* src/lalr.c (F): New macro to access the variable F.
20817	Adjust.
20818
208192001-11-19  Akim Demaille  <akim@epita.fr>
20820
20821	* src/lalr.h (LA): New macro to access the variable LA.
20822	* src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
20823	* src/lalr.c: Adjust.
20824
208252001-11-19  Akim Demaille  <akim@epita.fr>
20826
20827	* src/lalr.c (initialize_LA): Only initialize LA.  Let...
20828	(set_state_table): handle the `lookaheads' members.
20829
208302001-11-19  Akim Demaille  <akim@epita.fr>
20831
20832	* src/lalr.h (lookaheads): Removed array, whose contents is now
20833	a member of...
20834	(state_t): this structure.
20835	* src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
20836	Adjust.
20837
208382001-11-19  Akim Demaille  <akim@epita.fr>
20839
20840	* src/lalr.h (consistent): Removed array, whose contents is now
20841	a member of...
20842	(state_t): this structure.
20843	* src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
20844	Adjust.
20845
208462001-11-19  Akim Demaille  <akim@epita.fr>
20847
20848	* src/lalr.h (reduction_table, shift_table): Removed arrays, whose
20849	contents are now members of...
20850	(state_t): this structure.
20851	* src/output.c, src/lalr.c, src/print_graph.c, src/conflicts.c:
20852	Adjust.
20853
208542001-11-19  Akim Demaille  <akim@epita.fr>
20855
20856	* src/lalr.h (state_t): New.
20857	(state_table): Be a state_t * instead of a core **.
20858	(accessing_symbol): Remove, part of state_t.
20859	* src/lalr.c: Adjust.
20860	(set_accessing_symbol): Merge into...
20861	(set_state_table): this.
20862	* src/print_graph.c, src/conflicts.c: Adjust.
20863
208642001-11-14  Akim Demaille  <akim@epita.fr>
20865
20866	* tests/calc.at, tests/output.at, tests/regression.at,
20867	* tests/testsuite.at, tests/torture.at: Rely on Autotest 2.52g:
20868	now the tests are run in private dirs, therefore AC_CLEANUP and
20869	family can be simplified to 0-ary.
20870	* tests/atlocal.in: Now that we run `elsewhere' than in tests/,
20871	use abs. path to find config.h.
20872	* tests/calc.at (AT_CHECK_CALC): Don't try to check the compiler's
20873	stderr, there can be way too much random noise.
20874	Instead pass -Werror to GCC and rely on the exit status.
20875	Reported by Wolfram Wagner.
20876
208772001-11-14  Akim Demaille  <akim@epita.fr>
20878
20879	* src/bison.simple (yyparse): Let yyls1, yyss1 and yyvs1 be
20880	defined only if yyoverflow is defined, to avoid `warning: unused
20881	variable `yyvs1''.
20882	Reported by The Test Suite.
20883
208842001-11-14  Akim Demaille  <akim@epita.fr>
20885
20886	* src/print.c: Include reduce.h.
20887	Reported by Hans Aberg.
20888
208892001-11-14  Akim Demaille  <akim@epita.fr>
20890
20891	* src/lex.c, src/lex.h (token_buffer, unlexed_token_buffer):
20892	Revert a previous patch:  these are really const.
20893	* src/conflicts.c (conflict_report): Additional useless pair of
20894	braces to pacify GCC's warnings for `if () if () {} else {}'.
20895	* src/lex.c (parse_percent_token): Replace equal_offset with
20896	arg_offset.
20897	arg is const.
20898	Be sure to strdup `arg' when used, since there is no reason for
20899	token_buffer not to change.
20900
209012001-11-14  Akim Demaille  <akim@epita.fr>
20902
20903	* src/system.h (EXIT_SUCCESS, EXIT_FAILURE): Ensure a proper
20904	definition.
20905	* src/main.c (main): Use them.
20906	Suggested by Hans Aberg.
20907
209082001-11-12  Akim Demaille  <akim@epita.fr>
20909
20910	* src/system.h (ngettext): Now that we use ngettext, be sure to
20911	provide a default definition when NLS are not used.
20912
209132001-11-12  Akim Demaille  <akim@epita.fr>
20914
20915	* doc/bison.texinfo: Use `$' as shell prompt, not `%'.
20916	Use @kbd to denote user input.
20917	(Language and Grammar): ANSIfy the example.
20918	Adjust its layout for info/notinfo.
20919	(Location Tracking Calc): Output error messages to stderr.
20920	Output locations in a more GNUtically correct way.
20921	Fix a couple of Englishos.
20922	Adjust @group/@end group pairs.
20923
209242001-11-12  Akim Demaille  <akim@epita.fr>
20925
20926	%expect was not functioning at all.
20927
20928	* src/conflicts.c (expected_conflicts): Set to -1.
20929	(conflict_report): Use ngettext.
20930	(conflicts_print): Check %expect and make its violation an error.
20931	* doc/bison.texinfo (Expect Decl): Adjust.
20932	* configure.in (AM_GNU_GETTEXT): Ask for ngettext.
20933	* tests/regression.at (%expect not enough, %expect right)
20934	(%expect too much): New.
20935
209362001-11-12  Akim Demaille  <akim@epita.fr>
20937
20938	* tests/regression.at (Conflicts): Rename as...
20939	(Unresolved SR Conflicts): this.
20940	(Solved SR Conflicts): New.
20941
209422001-11-12  Akim Demaille  <akim@epita.fr>
20943
20944	* src/reduce.c (print_results): Rename as...
20945	(reduce_output): This.
20946	Output to OUT, passed as argument, instead of output_obstack.
20947	(dump_grammar): Likewise.
20948	(reduce_free): New.
20949	Also free V1.
20950	(reduce_grammar): No longer call reduce_output, since...
20951	* src/print.c (print_results): do it.
20952	* src/main.c (main): Call reduce_free;
20953
209542001-11-12  Akim Demaille  <akim@epita.fr>
20955
20956	* src/conflicts.c (print_reductions): Accept OUT as argument.
20957	Output to it, not to output_obstack.
20958	* src/print.c (print_actions): Adjust.
20959
209602001-11-12  Akim Demaille  <akim@epita.fr>
20961
20962	* src/conflicts.c (count_sr_conflicts, count_rr_conflicts): Return
20963	the result instead of using...
20964	(src_total, rrc_total, src_count, rrc_count): Remove.
20965	(any_conflicts): Remove.
20966	(print_conflicts): Split into...
20967	(conflicts_print, conflicts_output): New.
20968	* src/conflicts.h: Adjust.
20969	* src/main.c (main): Invoke both conflicts_output and conflicts_print.
20970	* src/print.c (print_grammar): Issue `\n' between two rules.
20971	* tests/regression.at (Conflicts): New.
20972	Reported by Tom Lane.
20973
209742001-11-12  Akim Demaille  <akim@epita.fr>
20975
20976	* tests/regression.at (Invalid input): Remove, duplicate with
20977	``Invalid input: 1''.
20978
209792001-11-12  Akim Demaille  <akim@epita.fr>
20980
20981	* tests/torture.at (AT_DATA_STACK_TORTURE)
20982	(Exploding the Stack Size with Alloca)
20983	(Exploding the Stack Size with Malloc): New.
20984
209852001-11-12  Akim Demaille  <akim@epita.fr>
20986
20987	* src/bison.simple (YYSTACK_REALLOC): New.
20988	(yyparse) [!yyoverflow]: Use it and free the old stack.
20989	Reported by Per Allansson.
20990
209912001-11-12  Pascal Bart  <pascal.bart@epita.fr>
20992
20993	* src/bison.simple: Define type yystype instead of YYSTYPE, and
20994	define CPP macro, which substitute YYSTYPE by yystype.
20995	* src/reader.c (parse_union_decl): Output yystype/YYSTYPE as we do
20996	with yyltype/YYLTYPE.  This allows inclusion of the generated
20997	header within the parser if the compiler, such as GGC, accepts
20998	multiple equivalent #defines.
20999	From Akim.
21000
210012001-11-05  Akim Demaille  <akim@epita.fr>
21002
21003	* src/reader.c (symbols_output): New, extracted from...
21004	(packsymbols): here.
21005	(reader): Adjust.
21006
210072001-11-05  Akim Demaille  <akim@epita.fr>
21008
21009	* src/lex.c (parse_percent_token): s/quotearg/quote/.
21010
210112001-11-05  Akim Demaille  <akim@epita.fr>
21012
21013	* tests/regression.at (AT_TEST_CPP_GUARD_H): Adjust the clean up
21014	pattern.
21015
210162001-11-05  Akim Demaille  <akim@epita.fr>
21017
21018	* src/options.h (struct option_table_struct): set_flags is void*.
21019	* src/options.c (longopts): Support `--output' and `%output'.
21020	(usage): Adjust.
21021	* src/lex.h (tok_setopt): Remove, replaced with...
21022	(tok_intopt, tok_stropt): these new guys.
21023	* src/lex.c (getopt.h): Not needed.
21024	(token_buffer, unlexed_token_buffer): Not const.
21025	(percent_table): Promote `-' over `_' in directive names.
21026	Active `%name-prefix', `file-prefix', and `output'.
21027	(parse_percent_token): Accept possible arguments to directives.
21028	Promote `-' over `_' in directive names.
21029
210302001-11-04  Akim Demaille  <akim@epita.fr>
21031
21032	* doc/bison.texinfo (Decl Summary): Split the list into
21033	`directives for grammars' and `directives for bison'.
21034	Sort'em.
21035	Add description of `%name-prefix', `file-prefix', and `output'.
21036	Promote `-' over `_' in directive names.
21037	(Bison Options): s/%locactions/%locations/.  Nice Freudian slip.
21038	Simplify the description of `--name-prefix'.
21039	Promote `-' over `_' in directive names.
21040	Promote `--output' over `--output-file'.
21041	Fix the description of `--defines'.
21042	* tests/output.at: Exercise %file-prefix and %output.
21043
210442001-11-02  Akim Demaille  <akim@epita.fr>
21045
21046	* doc/refcard.tex: Update.
21047
210482001-11-02  Akim Demaille  <akim@epita.fr>
21049
21050	* src/symtab.h (SUNDEF): New.
21051	* src/symtab.c (bucket_new): Init user_token_number to SUNDEF to
21052	stand for `uninitialized', instead of 0.
21053	* src/reader.c (packsymbols, parse_thong_decl): Adjust.
21054	* src/lex.c (lex): Adjust.
21055
21056	* tests/calc.at (_AT_DATA_CALC_Y): Declare a token for EOF.
21057	Number it 0.
21058	Let yylex return it instead of a plain 0.
21059	Reported by Dick Streefland.
21060
210612001-11-02  Akim Demaille  <akim@epita.fr>
21062
21063	* tests/regression.at (Mixing %token styles): New test.
21064
210652001-11-02  Akim Demaille  <akim@epita.fr>
21066
21067	* src/reader.c (parse_thong_decl): Formatting changes.
21068	(token_translations_init): New, extracted from...
21069	(packsymbols): Here.
21070	Adjust.
21071
210722001-11-01  Akim Demaille  <akim@epita.fr>
21073
21074	* tests/regression.at (AT_TEST_CPP_GUARD_H): New.
21075	Check that `9foo.y' produces correct cpp guards.
21076	* src/files.c (compute_header_macro): Prepend `BISON_' to CPP
21077	guards.
21078	Reported by Wwp.
21079
210802001-11-01  Akim Demaille  <akim@epita.fr>
21081
21082	* tests/regression.at (Invalid input: 2): New.
21083	* src/lex.c (unlexed_token_buffer): New.
21084	(lex, unlex): Adjust: when unlexing, be sure to save token_buffer
21085	too.
21086	Reported by Wwp.
21087
210882001-11-01  Akim Demaille  <akim@epita.fr>
21089
21090	* tests/calc.at: Catch up with 1.30.
21091	* configure.in: Bump to 1.49a.
21092	Adjust to newer Autotest.
21093
210942001-10-19  Pascal Bart  <pascal.bart@epita.fr>
21095
21096	* src/conflicts.c: Move global variables rrc_total and src_total ...
21097	(print_conflicts): here.
21098	* src/output.c (output): Free global variable user_toknums.
21099	* src/lex.c (token_obstack): Become static.
21100
211012001-10-18  Akim Demaille  <akim@epita.fr>
21102
21103	* tests/atlocal.in (GCC): Add.
21104	* tests/calc.at: s/m4_match/m4_bmatch/.
21105	s/m4_patsubst/m4_bpatsubst/.
21106	(AT_CHECK_CALC): Check the compiler's stderr only if it's GCC.
21107	* configure.in: AC_SUBST(GCC).
21108
211092001-10-14  Marc Autret  <autret_m@epita.fr>
21110
21111	* src/options.c (create_long_option_table): Fix.
21112
211132001-10-10  Akim Demaille  <akim@epita.fr>
21114
21115	* src/bison.simple: Be sure to set YYSTACK_USE_ALLOCA.
21116
211172001-10-04  Akim Demaille  <akim@epita.fr>
21118
21119	* src/reader.c (parse_union_decl): Push the caracters in
21120	union_obstack, not attrs_obstack.
21121
211222001-10-04  Akim Demaille  <akim@epita.fr>
21123
21124	Merge in the branch 1.29.
21125
21126	* src/reader.c (packsymbols): Use a temporary obstack for
21127	`%%tokendef', since output_stack is already used elsewhere.
21128
21129	2001-10-02  Akim Demaille  <akim@epita.fr>
21130
21131	Bump 1.29d.
21132
21133	2001-10-02  Akim Demaille  <akim@epita.fr>
21134
21135	Version 1.29c.
21136
21137	2001-10-02  Akim Demaille  <akim@epita.fr>
21138
21139	* tests/regression.at (Invalid CPP headers): New.
21140	From Alexander Belopolsky.
21141	* src/files.c (compute_header_macro): Map non alnum chars to `_'.
21142
21143	2001-10-02  Akim Demaille  <akim@epita.fr>
21144
21145	* tests/regression.at (Invalid input): New.
21146	* src/lex.c (lex): Be sure to set `token_buffer' in any case.
21147	Reported by Shura.
21148
21149	2001-10-02  Akim Demaille  <akim@epita.fr>
21150
21151	* tests/calc.at: Now that --debug works, the tests must be adjusted.
21152
21153	2001-10-02  Akim Demaille  <akim@epita.fr>
21154
21155	* src/output.c (output_parser): Assert `skeleton'.
21156	* src/files.c (skeleton_find): Look harder for skeletons on DOSish
21157	systems.
21158	From Shura.
21159
21160	2001-10-01  Marc Autret  <autret_m@epita.fr>
21161
21162	* src/lex.h: Echo modifications.
21163	* src/lex.c (unlex): Parameter is now token_t.
21164	From Hans Aberg.
21165
21166	2001-10-01  Marc Autret  <autret_m@epita.fr>
21167
21168	* src/main.c: Include lex.h.
21169	From Hans Aberg.
21170
21171	2001-09-29  Akim Demaille  <akim@epita.fr>
21172
21173	* src/getargs.c (longopts): `--debug' is `-t', not `-d'.
21174
21175	2001-09-28  Akim Demaille  <akim@epita.fr>
21176
21177	* tests/testsuite.at: Update to newer Autotest.
21178	* tests/Makefile.am (EXTRA_DIST): bison is not to be shipped.
21179
21180	2001-09-27  Akim Demaille  <akim@epita.fr>
21181
21182	Position independent wrapper.
21183
21184	* tests/bison: Remove.
21185	* tests/bison.in: New.
21186	* configure.in: Adjust.
21187
21188	2001-09-27  Paul Eggert  <eggert@twinsun.com>
21189
21190	Port quotearg fixes from tar 1.13.24.
21191
21192	* lib/quotearg.c: BSD/OS 4.1 wchar.h requires FILE and struct
21193	tm to be declared.
21194	(HAVE_MBSINIT): Undef if !HAVE_MBRTOWC.
21195	(mbsinit): Define to 1 if !defined mbsinit && !HAVE_MBSINIT.
21196
21197	* m4/Makefile.am (EXTRA_DIST): Add mbrtowc.m4.
21198	* m4/mbrtowc.m4: New file.
21199	* m4/prereq.m4 (jm_PREREQ_QUOTEARG): Check for mbsinit and stddef.h.
21200	Use jm_FUNC_MBRTOWC instead of AC_CHECK_FUNCS(mbrtowc).
21201
21202	2001-09-27  Akim Demaille  <akim@epita.fr>
21203
21204	Bump to 1.29c.
21205
21206	2001-09-27  Akim Demaille  <akim@epita.fr>
21207
21208	Version 1.29b.
21209
21210	2001-09-25  Akim Demaille  <akim@epita.fr>
21211
21212	* src/system.h: Include `xalloc.h'.
21213	Remove it from the C files.
21214	* src/files.c (output_files): Free the obstacks.
21215	* src/lex.c (init_lex): Rename as...
21216	(lex_init): this.
21217	(lex_free): New.
21218	* src/main.c (main): Use it.
21219
21220	2001-09-24  Marc Autret  <autret_m@epita.fr>
21221
21222	* src/vcg.c (open_edge, close_edge, open_node, close_node): Change
21223	to output informations in fout (FILE*).
21224	(open_graph, close_graph): Likewise.
21225	(output_graph, output_edge, output_node): Likewise.
21226	* src/vcg.h: Update function prototypes.
21227	* src/print_graph.c (print_graph): Open output graph file.
21228	(print_actions): Adjust.
21229	* src/files.h: Remove extern declaration.
21230	* src/files.c: Remove graph_obstack declaration.
21231	(open_files): Remove graph_obstack initialization.
21232	(output_files): Remove graph_obstack saving.
21233
21234	2001-09-24  Marc Autret  <autret_m@epita.fr>
21235
21236	* src/files.c (compute_output_file_names): Fix.
21237
21238	2001-09-24  Marc Autret  <autret_m@epita.fr>,
21239		    Akim Demaille  <akim@epita.fr>
21240
21241	* src/reader.c (reader): Remove call to free_symtab ().
21242	* src/main.c (main): Call it here.
21243	Include symtab.h.
21244	* src/conflicts.c (initialize_conflicts): Rename as...
21245	(solve_conflicts): this.
21246	* src/print.c (print_core, print_actions, print_state)
21247	(print_grammar): Dump to a file instead a `output_obstack'.
21248	(print_results): Dump `output_obstack', and then proceed with the
21249	FILE *.
21250	* src/files.c (compute_output_file_names, close_files): New.
21251	(output_files): Adjust.
21252	* src/main.c (main): Adjust.
21253
21254	2001-09-23  Marc Autret  <autret_m@epita.fr>
21255
21256	* src/files.c (compute_header_macro): Computes header macro name
21257	from spec_defines_file when given.
21258
21259	2001-09-23  Marc Autret  <autret_m@epita.fr>
21260
21261	* src/files.c (output_files): Add default extensions.
21262
21263	2001-09-22  Akim Demaille  <akim@epita.fr>
21264
21265	* src/conflicts.c (finalize_conflicts): Rename as...
21266	(free_conflicts): this.
21267
21268	2001-09-22  Akim Demaille  <akim@epita.fr>
21269
21270	* src/gram.c (gram_free): Rename back as...
21271	(dummy): this.
21272	(output_token_translations): Free `token_translations'.
21273	* src/symtab.c (free_symtab): Free the tag field.
21274
21275	2001-09-22  Akim Demaille  <akim@epita.fr>
21276
21277	Remove `translations' as it is always set to true.
21278
21279	* src/gram.h: Adjust.
21280	* src/reader.c (packsymbols, parse_token_decl): Adjust
21281	* src/print.c (print_grammar): Adjust.
21282	* src/output.c (output_token_translations): Adjust.
21283	* src/lex.c (lex): Adjust.
21284	* src/gram.c: Be sure the set pointers to NULL.
21285	(dummy): Rename as...
21286	(gram_free): this.
21287
21288	2001-09-22  Akim Demaille  <akim@epita.fr>
21289
21290	* configure.in: Invoke AM_LIB_DMALLOC.
21291	* src/system.h: Use dmalloc.
21292	* src/LR0.c: Be sure to have pointers initialized to NULL.
21293	(allocate_itemsets): Allocate kernel_items only if needed.
21294
21295	2001-09-22  Akim Demaille  <akim@epita.fr>
21296
21297	* configure.in: Bump to 1.29b.
21298	* tests/Makefile.am (DISTCLEANFILES): Add package.m4.
21299	* tests/calc.at (_AT_DATA_CALC_Y): #undef malloc so that we don't
21300	need xmalloc.c in calc.y.
21301	From Pascal Bart.
21302
21303	2001-09-21  Akim Demaille  <akim@epita.fr>
21304
21305	Version 1.29a.
21306	* Makefile.maint, config/config.guess, config/config.sub,
21307	* config/missing: Update from masters.
21308	* tests/Makefile.am ($(srcdir)/$(TESTSUITE)): No longer depend
21309	upon package.m4.
21310	* configure.in (ALL_LINGUAS): Add `tr'.
21311
21312	2001-09-21  Akim Demaille  <akim@epita.fr>
21313
21314	* tests/Makefile.am (package.m4): Move to...
21315	($(srcdir)/$(TESTSUITE)): here.
21316
21317	2001-09-20  Akim Demaille  <akim@epita.fr>
21318
21319	* src/complain.c: No longer try to be standalone: use system.h.
21320	Don't assume __STDC__ is defined to 1. Just test if it is defined.
21321	* src/complain.h: Likewise.
21322	* src/reduce.c (useless_nonterminals, inaccessable_symbols):
21323	Remove the unused variable `n'.
21324	From Albert Chin-A-Young.
21325
21326	2001-09-18  Marc Autret  <autret_m@epita.fr>
21327
21328	* doc/bison.1: Update.
21329	* doc/bison.texinfo (Bison Options): Update --defines and --graph
21330	descriptions.
21331	(Option Cross Key): Update.
21332	Add --graph.
21333
21334	2001-09-18  Marc Autret  <autret_m@epita.fr>
21335
21336	* tests/regression.at: New test (comment in %union).
21337
21338	2001-09-18  Marc Autret  <autret_m@epita.fr>
21339
21340	* src/reader.c (parse_union_decl): Do not output '/'. Let copy_comment
21341	do that.
21342	Reported by Keith Browne.
21343
21344	2001-09-18  Marc Autret  <autret_m@epita.fr>
21345
21346	* tests/output.at: Add tests for --defines and --graph.
21347
21348	2001-09-18  Marc Autret  <autret_m@epita.fr>
21349
21350	* tests/output.at: Removes tests of %{header,src}_extension features.
21351
21352	2001-09-18  Akim Demaille  <akim@epita.fr>
21353
21354	* tests/Makefile.am (package.m4): New.
21355	* tests/calc.at (_AT_CHECK_CALC): Just run `calc input'.
21356	(_AT_CHECK_CALC_ERROR): Likewise.
21357	Factor the `, ' part of verbose error messages.
21358
21359	2001-09-18  Marc Autret  <autret_m@epita.fr>
21360
21361	* src/getargs.c (longopts): Declare --defines and --graph as options
21362	with optional arguments.
21363	* src/files.h: Add extern declarations.
21364	* src/files.c (spec_graph_file, spec_defines_file): New.
21365	(output_files): Update.
21366	Remove CPP-outed code.
21367
21368	2001-09-18  Marc Autret  <autret_m@epita.fr>
21369
21370	Turn off %{source,header}_extension feature.
21371
21372	* src/files.c (compute_exts_from_gf): Update.
21373	(compute_exts_from_src): Update.
21374	(output_files): CPP-out useless code.
21375	* src/files.h: Remove {header,source}_extension extern declarations.
21376	* src/reader.c (parse_dquoted_param): CPP-out.
21377	(parse_header_extension_decl): Remove.
21378	(parse_source_extension_decl): Remove.
21379	(read_declarations): Remove cases tok_{hdrext,srcext}.
21380	* src/lex.c (percent_table): Remove {header,source}_extension entries.
21381	* src/lex.h (token_t): Remove tok_hdrext and tok_srcext.
21382
21383	2001-09-10  Akim Demaille  <akim@epita.fr>
21384
21385	* tests/output.at (AT_CHECK_BISON_FLAGS, AT_CHECK_BISON_PERCENT):
21386	(AT_CHECK_BISON_PERCENT_FLAGS): Merge into...
21387	(AT_CHECK_OUTPUT): this.
21388	Merely check ls' exit status, its output is useless.
21389
21390	2001-09-10  Akim Demaille  <akim@epita.fr>
21391
21392	* tests/calc.at: Use m4_match.
21393	(_AT_DATA_CALC_Y): Check `yyin != NULL', not `stdin != NULL'.
21394
21395	2001-09-10  Marc Autret  <autret_m@epita.fr>,
21396		    Akim Demaille  <akim@epita.fr>
21397
21398	* src/vcg.h (graph_s): color, textcolor, bordercolor are now
21399	enum color_e.
21400	* src/print_graph.c (print_graph): Initalize graph.layoutalgorithm
21401	to `normal'.
21402	* src/reader.c (parse_token_decl): Initialize token with tok_eof.
21403	* src/lex.h: Adjust prototype.
21404	(token_t): Add `tok_undef'.
21405	* src/lex.c (struct percent_table_struct): Retval is now a token_t.
21406	(parse_percent_token): Now returns token_t.
21407	Add default statement in switch.
21408	(lex): Separate `c' as an input variable, from the token_t result
21409	part.
21410	(unlexed): Is a token_t.
21411
21412	2001-09-10  Akim Demaille  <akim@epita.fr>
21413
21414	* configure.in: Bump to 1.29a.
21415
21416	2001-09-07  Akim Demaille  <akim@epita.fr>
21417
21418	Version 1.29.
21419
21420	2001-08-30  Akim Demaille  <akim@epita.fr>
21421
21422	* tests/atgeneral.m4, tests/atconfig.in, tests/suite.at: Remove.
21423	* m4/atconfig.m4: Remove.
21424	* tests/testsuite.at, tests/atlocal.in, tests/output.at,
21425	* tests/bison: New.
21426	* tests/regression.at, tests/calc.at: Use m4_define, AT_BANNER,
21427	m4_if, m4_patsubst, and m4_regexp.
21428	* tests/calc.at (_AT_CHECK_CALC, _AT_CHECK_CALC_ERROR): Use an
21429	`input' file instead of echo.
21430
21431	2001-08-29  Akim Demaille  <akim@epita.fr>
21432
21433	Bump to 1.28e.
21434
21435	2001-08-29  Akim Demaille  <akim@epita.fr>
21436
21437	Version 1.28d.
21438
21439	2001-08-29  Paul Eggert  <eggert@twinsun.com>
21440
21441	* src/bison.simple (yyparse): Don't take the address of an
21442	item before the start of an array, as that doesn't conform to
21443	the C Standard.
21444
21445	2001-08-29  Robert Anisko  <anisko_r@epita.fr>
21446
21447	* doc/bison.texinfo (Location Tracking Calc): New node.
21448
21449	2001-08-29  Paul Eggert  <eggert@twinsun.com>
21450
21451	* src/output.c (output): Do not define const, as this now
21452	causes more problems than it cures.
21453
21454	2001-08-29  Akim Demaille  <akim@epita.fr>
21455
21456	* doc/bison.texinfo: Modernize `@node' and `@top' use: just name
21457	the nodes.
21458	Be sure to tag the `detailmenu'.
21459
21460	2001-08-29  Akim Demaille  <akim@epita.fr>
21461
21462	* Makefile.maint (do-po-update): Wget refuses to overwrite files:
21463	download in a tmp dir.
21464
21465	2001-08-28  Marc Autret  <autret_m@epita.fr>
21466
21467	* config/depcomp: New file.
21468
21469	2001-08-28  Marc Autret  <autret_m@epita.fr>
21470
21471	* doc/bison.1 (mandoc): Adjust.
21472	From Juan Manuel Guerrero.
21473
21474	2001-08-28  Marc Autret  <autret_m@epita.fr>
21475
21476	* src/print_graph.c (print_state): Fix.
21477
21478	2001-08-27  Marc Autret  <autret_m@epita.fr>
21479
21480	* src/vcg.h (classname_s, infoname_s, node_s): Constify the
21481	char * members.
21482	Echo modifications to the functions prototypes.
21483	* src/vcg.c (add_classname, add_infoname): Adjust arguments.
21484
21485	2001-08-27  Marc Autret  <autret_m@epita.fr>
21486
21487	* src/vcg.c: Include `xalloc.h'.
21488	(add_colorentry): New.
21489	(add_classname): New.
21490	(add_infoname): New.
21491	* src/vcg.h: Add new prototypes.
21492
21493	2001-08-27  Akim Demaille  <akim@epita.fr>
21494
21495	* Makefile.maint: Sync. again with CVS Autoconf.
21496
21497	2001-08-27  Akim Demaille  <akim@epita.fr>
21498
21499	* Makefile.maint: Formatting changes.
21500	(po-update, cvs-update, update): New targets.
21501	(AMTAR): Remove.
21502
21503	2001-08-27  Akim Demaille  <akim@epita.fr>
21504
21505	* Makefile.am (AUTOMAKE_OPTIONS): 1.5.
21506	* Makefile.maint: Sync. with CVS Autoconf.
21507
21508	2001-08-27  Marc Autret  <autret_m@epita.fr>
21509
21510	* src/vcg.h (struct infoname_s): New.
21511	(struct colorentry_s): New.
21512	(graph_s): New fields {vertical,horizontal}_order in structure.
21513	Add `infoname' field.
21514	Add `colorentry' field;
21515	* src/vcg_defaults.h (G_VERTICAL_ORDER): New.
21516	(G_HORIZONTAL_ORDER): New.
21517	(G_INFONAME): New.
21518	(G_COLORENTRY): New.
21519	* src/vcg.c (output_graph): Add output of {vertical,horizontal}_order.
21520	Add output of `infoname'.
21521	Add output of `colorentry'.
21522
21523	2001-08-27  Marc Autret  <autret_m@epita.fr>
21524
21525	* src/reader.c (parse_dquoted_param): Rename variable `index' to `i'.
21526	This one shadowed a global parameter.
21527
21528	2001-08-24  Marc Autret  <autret_m@epita.fr>
21529
21530	* src/print_graph.c (node_output_size): Declared POSIX `size_t' type,
21531	instead of `unsigned'.
21532	(print_state): Do not call obstack_object_size () in obstack_grow ()
21533	to avoid macro variables shadowing.
21534
21535	2001-08-23  Marc Autret  <autret_m@epita.fr>
21536
21537	* src/lex.c (percent_table): Typo: s/naem/name/.
21538	Add graph option.
21539	Normalize new options declarations.
21540
21541	2001-08-20  Pascal Bart  <pascal.bart@epita.fr>
21542
21543	* tests/suite.at: Exercise %header_extension and %source_extension.
21544
21545	2001-08-16  Marc Autret  <autret_m@epita.fr>
21546
21547	* src/reader.c (parse_dquoted_param): New.
21548	(parse_header_extension_decl): Use it.
21549	(parse_source_extension_decl): Likewise.
21550
21551	2001-08-16  Marc Autret  <autret_m@epita.fr>
21552
21553	* src/vcg.c: Remove includes of `complain.h' and `xalloc.h'.
21554	(get_xxxx_str): Use assert () instead of complain ().
21555	Remove return invokations in default cases.
21556	(get_decision_str): Modify default behaviour. Remove second argument.
21557	Echo modifications on calls.
21558	(output_graph): Fix.
21559
21560	2001-08-16  Marc Autret  <autret_m@epita.fr>
21561
21562	* src/getargs.c (usage): Update with ``-g, --graph''.
21563
21564	2001-08-16  Marc Autret  <autret_m@epita.fr>
21565
21566	* doc/bison.texinfo (Bison Options): Add items `-g', `--graph'.
21567	(Option Cross Key): Likewise.
21568	* doc/bison.1: Update.
21569
215702001-09-25  Pascal Bart  <pascal.bart@epita.fr>
21571
21572	* src/output.c (output_master_parser): Don't finish action_obstack.
21573	(output_parser): Don't care about the muscle action, here.
21574	(prepare): Copy the action_obstack in the action muscle.
21575	(output): Free action_obstack.
21576
215772001-09-23  Pascal Bart  <pascal.bart@epita.fr>
21578
21579	* src/reader.c (parse_union_decl): Add new obstack union_obstack.  Which
21580	will contain `%union' declaration.
21581	(parse_union_decl): Delete #line directive output.
21582	(parse_union_decl): Substitute /attrs_obstack/union_obstack for all
21583	informations about %union.
21584	(parse_union_decl): Copy the union_obstack in the muscle stype.
21585	* src/bison.simple: Add new #line directive.
21586	Add typdef %%stype YYSTYPE.
21587
215882001-09-23  Pascal Bart  <pascal.bart@epita.fr>
21589
21590	* src/bison.simple: Add new `#line' directive.
21591
215922001-09-22  Pascal Bart  <pascal.bart@epita.fr>
21593
21594	* src/bison.simple: New `#line' directive.
21595	* src/output.c (output_parser): Support new dynamic muscle input_line.
21596
215972001-09-22  Marc Autret  <autret_m@epita.fr>
21598
21599	* src/output.c (output_master_parser): New.
21600	(output_parser): Be more re-entrant.
21601
216022001-09-21  Marc Autret  <autret_m@epita.fr>
21603
21604	* src/reader.c (copy_definition, parse_union_decl): Update and use
21605	`linef' muscle.
21606	(copy_action): Likewise.
21607	Use obstack_1grow ().
21608	* src/muscle_tab.c (muscle_init): Add muscle `linef'.
21609
216102001-09-21  Marc Autret  <autret_m@epita.fr>
21611
21612	* src/options.c (option_table): Adjust.
21613	* src/lex.c (parse_percent_token): Fix.
21614
216152001-09-20  Pascal Bart  <pascal.bart@epita.fr>
21616
21617	* src/options.c (symtab.h): Include it, need by lex.h.
21618
216192001-09-20  Pascal Bart  <pascal.bart@epita.fr>
21620
21621	* src/lex.c (parse_percent_token): Change type of variable `tx', which
21622	is now an option_table_struct*.
21623	(option_strcmp): New function option_strcmp.
21624	(parse_percent_token): Call option_strcmp.
21625	* src/getargs.c (xalloc.h, options.h): Include it.
21626	(getargs): Call create_long_option_table.
21627	(getargs): Free longopts at the end of the function.
21628	(shortopts): Move in options.c.
21629	* src/options.c (create_long_option_table): New function.  Convert
21630	information from option_table to option structure.
21631	* src/reader.c (options.h): Include it.
21632
21633	* src/Makefile.am: Adjust.
21634	* src/options.c (option_table): Create from longopts and percent_table.
21635	* src/getargs.c (longopts): Delete.
21636	* src/lex.c (struct percent_table_struct): Delete.
21637	(percent_table): Delete.
21638	(options.h): Include it.
21639	* src/options.c: Create.
21640	* src/options.h: Create.
21641	Declare enum opt_access_e.
21642	Define struct option_table_struct.
21643
216442001-09-20  Marc Autret  <autret_m@epita.fr>
21645
21646	* doc/bison.texinfo: Adjust terminologies about prologue and epilogue
21647	sections of Bison.
21648
216492001-09-19  Pascal Bart  <pascal.bart@epita.fr>
21650
21651	* src/bison.simple: s/%%filename/%%skeleton.
21652	* src/muscle_tab.c (getargs.h): Include it.
21653	(muscle_init): Insert new muscle skeleton.
21654
216552001-09-18  Pascal Bart  <pascal.bart@epita.fr>
21656
21657	* src/output.c (output_parser): Delete unused variable actions_dumped.
21658
216592001-09-07  Pascal Bart  <pascal.bart@epita.fr>
21660
21661	* src/output.c (output): Delete call to reader_output_yylsp.
21662	* src/reader.c (reader): Likewise.
21663	* src/reader.h: Delete declaration of reader_output_yylsp.
21664
216652001-09-02  Marc Autret  <autret_m@epita.fr>
21666
21667	* src/reader.c: Include muscle_tab.h.
21668	(parse_union_decl): Update.
21669	(parse_macro_decl): Rename parse_muscle_decl.
21670	Update to use renamed functions and variable.
21671	(read_declarations, copy_action, read_additionnal_code, : Updated
21672	with correct variables and functions names.
21673	(packsymbols, reader): Likewise.
21674
21675	* src/reader.h (muscle_obstack): Extern declaration update.
21676
21677	* src/output.c: Include muscle_tab.h
21678	In all functions using macro_insert, change by using muscle_insert ().
21679	(macro_obstack): Rename muscle_obstack.
21680	Echo modifications in the whole file.
21681	(MACRO_INSERT_INT): Rename MUSCLE_INSERT_INT.
21682	(MACRO_INSERT_STRING): Rename MUSCLE_INSERT_STRING.
21683	(MACRO_INSERT_PREFIX): Rename MUSCLE_INSERT_PREFIX.
21684
21685	* src/muscle_tab.h: Update double inclusion macros.
21686	(macro_entry_s): Rename muscle_entry_s.
21687	Update prototypes.
21688
21689	* src/muscle_tab.c: Include muscle_tab.h.
21690	Rename macro_tabble to muscle_table.
21691	(mhash1, mhash2, mcmp): Use muscle_entry.
21692	(macro_init): Rename muscle_init. Update.
21693	(macro_insert): Rename muscle_insert. Update.
21694	(macro_find): Rename muscle_find. Update.
21695
21696	* src/main.c: Include muscle_tab.h.
21697	(main): Call muscle_init ().
21698	* src/Makefile.am (bison_SOURCES): Echo modifications.
21699
217002001-09-02  Marc Autret  <autret_m@epita.fr>
21701
21702	Now the files macro_tab.[ch] are named muscle_tab.[ch].
21703
21704	* src/muscle_tab.c, src/muscle_tab.h: Add files.
21705
217062001-09-02  Marc Autret  <autret_m@epita.fr>
21707
21708	* src/macrotab.c, src/macrotab.h: Remove.
21709
217102001-09-01  Pascal Bart  <pascal.bart@epita.fr>
21711
21712	* src/reader.c (copy_guard): Use muscle to specify the `#line'
21713	filename.
21714
217152001-09-01  Marc Autret  <autret_m@epita.fr>
21716
21717	* tests/calc.at (exp): Now, YYERROR_VERBOSE need to be set
21718	to an explicit value to activate the feature. We do it here.
21719
217202001-08-31  Pascal Bart  <pascal.bart@epita.fr>
21721
21722	* src/output.c (prepare): Delete the `filename' muscule insertion.
21723	* src/reader.c (copy_action): Use `filename' muscule with `#line'.
21724	(parse_union_decl): Likewise.
21725	* src/macrotab.c (macro_init): Initialize filename by infile.
21726
217272001-08-31  Marc Autret  <autret_m@epita.fr>
21728
21729	* src/bison.simple (YYLSP_NEEDED): New definition.
21730	* src/output.c (prepare): Add macro insertion of `locations_flag'
21731
217322001-08-31  Pascal Bart  <pascal.bart@epita.fr>
21733
21734	* src/output.c (prepare): Delete insertion of previous muscles,
21735	and insert the `prefix' muscles.
21736	* src/macrotab.c (macro_init): Likewise.
21737	(macro_init): Initialization prefix directive by `yy'.
21738	* src/bison.simple: Substitute all %%yylex, %%yychar, %%yylval,
21739	%%yydebug, %%yyerror, %%yynerrs and %%yyparse by yylex, yychar,
21740	yylval, yydebug, yyerror, yynerrs and yyparse.
21741	New directive `#define' to substitute yydebug, ... with option
21742	name_prefix.
21743
217442001-08-31  Pascal Bart  <pascal.bart@epita.fr>
21745
21746	* src/main.c (main): Standardize.
21747	* src/output.c (output_table_data, output_parser): Likewise.
21748	* src/macrotab.h, src/macrotab.c, src/bison.simple: Likewise.
21749
217502001-08-31  Pascal Bart  <pascal.bart@epita.fr>, Marc Autret  <autret_m@epita.fr>
21751
21752	* src/reader.c (read_additionnal_code): Rename %%user_code to
21753	%%epilogue.
21754	* src/output.c (output): Rename %%declarations to %%prologue.
21755	* src/bison.simple: Echo modifications.
21756
217572001-08-31  Marc Autret  <autret_m@epita.fr>
21758
21759	* src/reader.c (readgram): CleanUp.
21760	(output_token_defines): Likewise.
21761	(packsymbols): Likewise.
21762	(reader): Likewise.
21763	* src/output.c (output): CPP-out useless code.
21764
217652001-08-31  Pascal Bart  <pascal.bart@epita.fr>
21766
21767	* src/reader.c (reader): Delete obsolete call to function
21768	output_trailers and output_headers.
21769	* src/output.h: Remove obsolete functions prototypes of output_headers
21770	and output_trailers.
21771
217722001-08-30  Pascal Bart  <pascal.bart@epita.fr>
21773
21774	* src/main.c: Include macrotab.h.
21775	* src/macrotab.h (macro_entry_s): Constify fields.
21776	Adjust functions prototypes.
21777	* src/macrotab.c (macro_insert): Constify key and value.
21778	(macro_find): Constify key.
21779	(macro_insert): Include 'xalloc.h'
21780	(macro_insert): Use XMALLOC.
21781	(macro_find): Constify return value.
21782	* src/output.c (output_table_data): Rename table to table_data.
21783	(output_parser): Constify macro_key, macro_value.
21784
217852001-08-30  Marc Autret  <autret_m@epita.fr>
21786
21787	* src/reader.c (parse_skel_decl): New.
21788	(read_declarations): Add case `tok_skel', call parse_skel_decl ().
21789	* src/lex.h (token_t): New token `tok_skel'.
21790	* src/lex.c (percent_table): Add skeleton option entry.
21791	Standardize.
21792
217932001-08-29  Marc Autret  <autret_m@epita.fr>
21794
21795	* src/bison.simple: Add %%user_code directive at the end.
21796	* src/reader.c (read_additionnal_code): New.
21797	(reader): Use it.
21798	* src/output.c (output_program): Remove.
21799	(output): Update.
21800
218012001-08-28  Marc Autret  <autret_m@epita.fr>
21802
21803	* src/output.c (output_actions): Clean up.
21804	(output_gram): CPP-out useless code.
21805	* src/reader.c (reader): Clean up, CPP-out useless code.
21806
218072001-08-28  Pascal Bart  <pascal.bart@epita.fr>
21808
21809	* src/output.c (output): Copy attrs_obstack in the '%%definitions'
21810	directive.
21811	* src/bison.simple: Add `%%definitions'.
21812
218132001-08-28  Marc Autret  <autret_m@epita.fr>
21814
21815	* config/depcomp: New file.
21816
218172001-08-27  Paul Eggert  <eggert@twinsun.com>
21818
21819	* src/bison.simple (yyparse): Don't take the address of an
21820	item before the start of an array, as that doesn't conform to
21821	the C Standard.
21822
218232001-08-27  Robert Anisko  <robert.anisko@epita.fr>
21824
21825	* src/output.c (output): Remove the initialization of the macro
21826	obstack.  It was done too late here.
21827
21828	* src/reader.c (parse_macro_decl): Fix.  Use of the macro obstack was
21829	completely wrong.
21830	(reader): Initialize the macro obstack here, since we need it to grow
21831	'%define' directives.
21832
21833	* src/reader.h: Declare the macro obstack as extern.
21834
218352001-08-27  Robert Anisko  <robert.anisko@epita.fr>
21836
21837	* src/output.c (output_parser): Fix.  Store single '%' characters in
21838	the output obstack instead of throwing them away.
21839
218402001-08-27  Akim Demaille  <akim@epita.fr>
21841
21842	* Makefile.am (AUTOMAKE_OPTIONS): 1.5.
21843
218442001-08-25  Robert Anisko  <robert.anisko@epita.fr>
21845
21846	* lib/Makefile.am: Adjust.
21847
218482001-08-25  Robert Anisko  <robert.anisko@epita.fr>
21849
21850	* src/bison.simple: Update and add '%%' directives.
21851
218522001-08-25  Robert Anisko  <robert.anisko@epita.fr>
21853
21854	* src/reader.c (reader): Remove calls to 'output_headers' and
21855	'output_trailers'. Remove some C output.
21856	(readgram): Disable a piece of code that was writing a default
21857	definition for 'YYSTYPE'.
21858	(reader_output_yylsp): Remove.
21859	(packsymbols): Output token defintions to a macro.
21860	(copy_definition): Disable C output.
21861
21862	* src/reader.c (parse_macro_decl): New function used to parse macro
21863	declarations.
21864	(copy_string2): Put the body of copy_string into this new function.
21865	Add a parameter to let the caller choose whether he wants to copy the
21866	string delimiters or not.
21867	(copy_string): Be a simple call to copy_string2 with the last argument
21868	bound to true.
21869	(read_declarations): Add case for macro definition.
21870	(copy_identifier): New.
21871	(parse_macro_decl): Read macro identifiers using copy_identifier
21872	rather than lex.
21873
218742001-08-25  Robert Anisko  <robert.anisko@epita.fr>
21875
21876	* src/output.c (prepare): Add prefixed names.
21877	(output_parser): Output semantic actions.
21878	(output_parser): Fix bug on '%%line' directives.
21879
21880	* src/output.c (output_headers): Remove. The C code printed by this
21881	function should now be in the skeletons.
21882	(output_trailers): Remove.
21883	(output): Disable call to 'reader_output_yylsp'.
21884	(output_rule_data): Do not output tables to the table obstack.
21885
21886	* src/output.c: Remove some C dedicated output.
21887	Improve the use of macro and output obstacks.
21888	(output_defines): Remove.
21889
21890	* src/output.c (output_token_translations): Associate 'translate'
21891	table with a macro. No output to the table obstack.
21892	(output_gram): Same for 'rhs' and 'prhs'.
21893	(output_stos): Same for 'stos'.
21894	(output_rule_data): Same for 'r1' and 'r2'.
21895	(token_actions): Same for 'defact'.
21896	(goto_actions): Same for 'defgoto'.
21897	(output_base): Same for 'pact' and 'pgoto'.
21898	(output_table): Same for 'table'.
21899	(output_check): Same for 'check'.
21900
21901	* src/output.c (output_table_data): New function.
21902	(output_short_table): Remove.
21903	(output_short_or_char_table): Remove.
21904
21905	* src/output.c (output_parser): Replace most of the skeleton copy code
21906	with something new. Skeletons are now processed character by character
21907	rather than line by line, and Bison looks for '%%' macros. This is the
21908	first step in making Bison's output process (a lot) more flexible.
21909	(output_parser): Use the macro table.
21910
219112001-08-25  Robert Anisko  <robert.anisko@epita.fr>
21912
21913	* src/main.c (main): Initialize the macro table.
21914
219152001-08-25  Robert Anisko  <robert.anisko@epita.fr>
21916
21917	* src/lex.c (percent_table): Add tok_define.
21918	* src/lex.h: Add tok_define.
21919
219202001-08-25  Robert Anisko  <robert.anisko@epita.fr>
21921
21922	* src/macrotab.c: New file.
21923	* src/macrotab.h: New file.
21924	* src/Makefile.am: Update.
21925
219262001-08-25  Robert Anisko  <robert.anisko@epita.fr>
21927
21928	* lib/hash.c: New file.
21929	* lib/hash.h: New file.
21930	* lib/Makefile.am: Update.
21931
219322001-08-15  Akim Demaille  <akim@epita.fr>
21933
21934	Version 1.28c.
21935
219362001-08-15  Marc Autret  <autret_m@epita.fr>
21937
21938	* src/reader.c (readgram): Indent output macro YYSTYPE.
21939	(packsymbols): Likewise.
21940	(output_token_defines): Likewise.
21941	* src/files.c: Standardize.
21942	(compute_header_macro): New.
21943	(defines_obstack_save): New. Use compute_header_macro.
21944	(output_files): Update. Use defines_obstack_save.
21945
219462001-08-15  Akim Demaille  <akim@epita.fr>
21947
21948	* doc/bison.texinfo (Table of Symbols): Document
21949	YYSTACK_USE_ALLOCA.
21950
219512001-08-15  Akim Demaille  <akim@epita.fr>
21952
21953	* missing: Update from CVS Automake.
21954	* config/config.guess, config/config.sub, config/texinfo.tex:
21955	Update from gnu.org.
21956
219572001-08-15  Akim Demaille  <akim@epita.fr>
21958
21959	* Makefile.maint: Sync with CVS Autoconf.
21960
219612001-08-14  Pascal Bart  <pascal.bart@epita.fr>
21962
21963	* doc/bison.texinfo: Include GNU Free Documentation License from
21964	`fdl.texi'.
21965	* doc/fdl.texi: Add to package.
21966
219672001-08-14  Marc Autret  <autret_m@epita.fr>
21968
21969	Turn on %{source,header}_extension features.
21970
21971	* src/lex.c (percent_table): Un-CPP out header_extension and
21972	source_extension.
21973	* src/files.c (compute_exts_from_gf): Compare pointers with NULL.
21974	(compute_exts_from_src): Remove conditions. It restores priorities
21975	between options.
21976
219772001-08-14  Marc Autret  <autret_m@epita.fr>
21978
21979	* src/files.c (compute_base_names): Add extensions computing when
21980	`--file-prefix' used.
21981	Standardize function calls.
21982
219832001-08-13  Marc Autret  <autret_m@epita.fr>
21984
21985	* src/bison.simple (YYSTACK_USE_ALLOCA): Changed to allow users
21986	defining it (defined but null disables alloca).
21987
219882001-08-13  Marc Autret  <autret_m@epita.fr>
21989
21990	* src/bison.simple (_yy_memcpy): CPP reformat.
21991
219922001-08-13  Pascal Bart  <pascal.bart@epita.fr>
21993
21994	* tests/atconfig.in (CPPFLAGS): Fix.
21995
219962001-08-10  Pascal Bart  <pascal.bart@epita.fr>
21997
21998	* doc/bison.texinfo: Include GNU General Public License from
21999	`gpl.texi'.
22000	* doc/gpl.texi: Add to package.
22001
220022001-08-10  Marc Autret  <autret_m@epita.fr>
22003
22004	* src/print_graph.h: Fix.
22005	* src/reader.c (read_declarations): Use parse_header_extension_decl ().
22006
220072001-08-10  Akim Demaille  <akim@epita.fr>
22008
22009	* src/system.h: Provide default declarations for stpcpy, strndup,
22010	and strnlen.
22011
220122001-08-10  Robert Anisko  <anisko_r@epita.fr>
22013
22014	* doc/bison.texinfo (Locations): Update @$ stuff.
22015
220162001-08-09  Robert Anisko  <anisko_r@epita.fr>
22017
22018	* src/bison.simple (YYLLOC_DEFAULT): Update.
22019	(yyparse): Adjust.
22020
220212001-08-08  Marc Autret  <autret_m@epita.fr>
22022
22023	* doc/bison.texinfo: Change @samp{$<@dots{}>} to
22024	@samp{$<@dots{}>@var{n}} in Section Actions in Mid-Rule.
22025	Reported by Fabrice Bauzac.
22026
220272001-08-08  Marc Autret  <autret_m@epita.fr>
22028
22029	* src/vcg_default.h: Use NULL instead of 0 to initialize pointers.
22030	* src/vcg.c (output_node): Fix.
22031	* src/vcg.h: Cleanup.
22032	* src/print_graph.c: Add comments.
22033	(node_output_size): New global variable. Simplify the formatting of
22034	the VCG graph output.
22035	(print_actions): Unused code is now used. It notifies the final state
22036	and no action states in the VCG graph. It also give the reduce actions.
22037	The `shift and goto' edges are red and the `go to state' edges are
22038	blue.
22039	Get the current node name and node_obstack by argument.
22040	(node_obstack): New variable.
22041	(print_state): Manage node_obstack.
22042	(print_core): Use node_obstack given by argument.
22043	A node is not only computed here but in print_actions also.
22044	(print_graph): CPP out useless code instead of commenting it.
22045
220462001-08-07  Pascal Bart  <pascal.bart@epita.fr>
22047
22048	* tests/atconfig.in (CPPFLAGS): Fix.
22049
220502001-08-07  Akim Demaille  <akim@epita.fr>
22051
22052	* src/print_graph.c (quote): New.
22053	(print_core): Use it.
22054
220552001-08-06  Akim Demaille  <akim@epita.fr>, Marc Autret  <autret_m@epita.fr>
22056
22057	* src/vcg.c (complain.h): Include it.
22058	Unepitaize `return' invocations.
22059	[NDEBUG] (main): Remove.
22060	* src/vcg.h (node_t, edge_t, graph_t): Constify the char * members.
22061	* src/files.c (open_files): Initialize graph_obstack.
22062	* src/print_graph.c (print_actions): CPP out useless code.
22063	(print_core): Don't output the last `\n' in labels.
22064	Use `quote'.
22065	* src/files.c (output_files): Output the VCG file.
22066	* src/main.c (main): Invoke print_graph ();
22067
220682001-08-06  Marc Autret  <autret_m@epita.fr>
22069
22070	Automaton VCG graph output.
22071	Using option ``-g'' or long option ``--graph'', you can generate
22072	a gram_filename.vcg file containing a VCG description of the LALR (1)
22073	automaton of your grammar.
22074
22075	* src/main.c: Call to print_graph() function.
22076	* src/getargs.h: Update.
22077	* src/getargs.c (options): Update to catch `-g' and `--graph' options.
22078	(graph_flag): New flag.
22079	(longopts): Update.
22080	(getargs): Add case `g'.
22081	* src/files.c (graph_obstack): New obstack struct.
22082	(open_files): Initialize new obstack.
22083	(output_files): Saves graph_obstack if required.
22084	* src/files.h (graph_obstack): New extern declaration.
22085	* src/Makefile.am: Add new source files.
22086
220872001-08-06  Marc Autret  <autret_m@epita.fr>
22088
22089	* src/print_graph.c, src/print_graph.h (graph): New.
22090	* src/vcg.h: New file.
22091	* src/vcg.c: New file, VCG graph handling.
22092
220932001-08-06  Marc Autret  <autret_m@epita.fr>
22094
22095	Add of %source_extension and %header_extension which specify
22096	the source or/and the header output file extension.
22097
22098	* src/files.c (compute_base_names): Remove initialisation of
22099	src_extension and header_extension.
22100	(compute_exts_from_gf): Update.
22101	(compute_exts_from_src): Update.
22102	(output_files): Update.
22103	* src/reader.c (parse_header_extension_decl): New.
22104	(parse_source_extension_decl): New.
22105	(read_declarations): New case statements for the new tokens.
22106	* src/lex.c (percent_table): Add entries for %source_extension
22107	and %header_extension.
22108	* src/lex.h (token_e): New tokens tok_hdrext and tok_srcext.
22109
221102001-08-06  Marc Autret  <autret_m@epita.fr>
22111
22112	* configure.in: Bump to 1.28c.
22113	* doc/bison.texinfo: Texinfo thingies.
22114
221152001-08-04  Pascal Bart  <pascal.bart@epita.fr>
22116
22117	* tests/atconfig.in (CPPFLAGS): Add.
22118	* tests/calc.at (AT_CHECK): Use CPPFLAGS.
22119
221202001-08-03  Akim Demaille  <akim@epita.fr>
22121
22122	Version 1.28b.
22123
221242001-08-03  Akim Demaille  <akim@epita.fr>
22125
22126	* tests/Makefile.am (check-local): Ship testsuite.
22127	* tests/calc.at (_AT_DATA_CALC_Y): Prototype all the functions.
22128	Include `string.h'.
22129
221302001-08-03  Akim Demaille  <akim@epita.fr>
22131
22132	* configure.in: Try using -Wformat when compiling.
22133
221342001-08-03  Akim Demaille  <akim@epita.fr>
22135
22136	* configure.in: Bump to 1.28b.
22137
221382001-08-03  Akim Demaille  <akim@epita.fr>
22139
22140	* src/complain.c: Adjust strerror_r portability issues.
22141
221422001-08-03  Akim Demaille  <akim@epita.fr>
22143
22144	Version 1.28a.
22145
221462001-08-03  Akim Demaille  <akim@epita.fr>
22147
22148	* src/getargs.c, src/getarg.h (skeleton)): Constify.
22149	* src/lex.c (literalchar): Avoid name clashes on `buf'.
22150	* src/getargs.c: Include complain.h.
22151	* src/files.c, src/files.h (skeleton_find): Avoid name clashes.
22152	* lib/quotearg.c, lib/quotearg.h: Update from fileutils 4.1.
22153
221542001-08-03  Akim Demaille  <akim@epita.fr>
22155
22156	* src/reader.c (readgram): Display hidden chars in error messages.
22157
221582001-08-03  Akim Demaille  <akim@epita.fr>
22159
22160	Update to gettext 0.10.39.
22161
221622001-08-03  Akim Demaille  <akim@epita.fr>
22163
22164	* lib/strspn.c: New.
22165
221662001-08-01  Marc Autret  <autret_m@epita.fr>
22167
22168	* doc/bison.texinfo: Update.
22169	* doc/bison.1 (mandoc): Update.
22170	* src/system.h (EXT_GUARD_C, EXT_STYPE_H): Remove .c and .h.
22171	* src/files.c: Support output files extensions computing.
22172	(src_extension): New static variable.
22173	(header_extension): New static variable.
22174	(tr): New function.
22175	(get_extension_index): New function, gets the index of an extension
22176	filename in a string.
22177	(compute_exts_from_gf): New function, computes extensions from the
22178	grammar file extension.
22179	(compute_exts_from_src): New functions, computes extensions from the
22180	C source file extension, file given by ``-o'' option.
22181	(compute_base_names): Update.
22182	(output_files): Update.
22183
221842001-08-01  Robert Anisko  <anisko_r@epita.fr>
22185
22186	* doc/bison.texi: Document @$.
22187	(Locations): New section.
22188
221892001-07-18  Akim Demaille  <akim@epita.fr>
22190
22191	* Makefile.maint, GNUmakefile: New, from Autoconf 2.52.
22192	* config/prev-version.txt, config/move-if-change: New.
22193	* Makefile.am: Adjust.
22194
221952001-07-08  Pascal Bart  <pascal.bart@epita.fr>
22196
22197	* src/bison.simple (yyparse): Suppress warning `comparaison
22198	between signed and unsigned'.
22199
222002001-07-05  Pascal Bart  <pascal.bart@epita.fr>
22201
22202	* src/getargs.h (raw_flag): Remove.
22203	* src/getargs.c: Die on `-r'/`--raw'.
22204	* src/lex.c (parse_percent_token): Die on `%raw'.
22205	* src/reader.c (output_token_defines): Suppress call to `raw_flag'.
22206	* tests/calc.at: Suppress test with option `--raw'.
22207
222082001-07-14  Akim Demaille  <akim@epita.fr>
22209
22210	* config/: New.
22211	* configure.in: Require Autoconf 2.50.
22212	Update to gettext 0.10.38.
22213
222142001-03-16  Akim Demaille  <akim@epita.fr>
22215
22216	* doc/bison.texinfo: ANSIfy the examples.
22217
222182001-03-16  Akim Demaille  <akim@epita.fr>
22219
22220	* getargs.c (skeleton): New variable.
22221	(longopts): --skeleton is a new option.
22222	(shortopts, getargs): -S is a new option.
22223	* getargs.h: Declare skeleton.
22224	* output.c (output_parser): Use it.
22225
222262001-03-16  Akim Demaille  <akim@epita.fr>
22227
22228	* m4/strerror_r.m4: New.
22229	* m4/error.m4: Run AC_FUNC_STRERROR_R.
22230	* lib/error.h, lib/error.c: Update.
22231
222322001-03-16  Akim Demaille  <akim@epita.fr>
22233
22234	* src/getargs.c (longopts): Clean up.
22235
222362001-02-21  Akim Demaille  <akim@epita.fr>
22237
22238	* src/reader.c (gensym): `gensym_count' is your own.
22239	Use a static buf to create the symbol name, as token_buffer is no
22240	longer a buffer.
22241
222422001-02-08  Akim Demaille  <akim@epita.fr>
22243
22244	* src/conflicts.c (conflict_report): Be sure not to append to res
22245	between two calls, which could happen if both first sprintf were
22246	skipped, but not the first cp += strlen.
22247
222482001-02-08  Akim Demaille  <akim@epita.fr>
22249
22250	* lib/memchr.c, lib/stpcpy.c, lib/strndup.c, lib/strnlen.c:
22251	New, from fileutils 4.0.37.
22252	* configure.in: Require Autoconf 2.49c.  I took some time before
22253	making this decision.  This is the only way out for portability
22254	issues in Bison, it would mean way too much duplicate effort to
22255	import in Bison features implemented in 2.49c since 2.13.
22256	AC_REPLACE_FUNCS and AC_CHECK_DECLS the functions above.
22257
222582001-02-02  Akim Demaille  <akim@epita.fr>
22259
22260	* lib/malloc.c, lib/realloc.c: New, from the fileutils 4.0.37.
22261	* lib/xalloc.h, lib/xmalloc.c: Update.
22262
222632001-01-19  Akim Demaille  <akim@epita.fr>
22264
22265	Get rid of the ad hoc handling of token_buffer in the scanner: use
22266	the obstacks.
22267
22268	* src/lex.c (token_obstack): New.
22269	(init_lex): Initialize it.  No longer call...
22270	(grow_token_buffer): this.  Remove it.
22271	Adjust all the places which used it to use the obstack.
22272
222732001-01-19  Akim Demaille  <akim@epita.fr>
22274
22275	* src/lex.h: Rename all the tokens:
22276	s/\bENDFILE\b/tok_eof/g;
22277	s/\bIDENTIFIER\b/tok_identifier/g;
22278	etc.
22279	Let them be enums, not #define, to ease debugging.
22280	Adjust all the code.
22281
222822001-01-18  Akim Demaille  <akim@epita.fr>
22283
22284	* src/lex.h (MAXTOKEN, maxtoken, grow_token_buffer): Remove, private.
22285	* src/lex.c (maxtoken, grow_token_buffer): Static.
22286
222872001-01-18  Akim Demaille  <akim@epita.fr>
22288
22289	Since we now use obstacks, more % directives can be enabled.
22290
22291	* src/lex.c (percent_table): Also accept `%yacc',
22292	`%fixed_output_files', `%defines', `%no_parser', `%verbose', and
22293	`%debug'.
22294	Handle the actions for `%semantic_parser' and `%pure_parser' here,
22295	instead of returning a token.
22296	* src/lex.h (SEMANTIC_PARSER, PURE_PARSER): Remove, unused.
22297	* src/reader.c (read_declarations): Adjust.
22298	* src/files.c (open_files): Don't call `compute_base_names', don't
22299	compute `attrsfile' since they depend upon data which might be
22300	*in* the input file now.
22301	(output_files): Do it here.
22302	* src/output.c (output_headers): Document the fact that this patch
22303	introduces a guaranteed SEGV for semantic parsers.
22304	* doc/bison.texinfo: Document them.
22305	* tests/suite.at: Exercise these %options.
22306
223072000-12-20  Akim Demaille  <akim@epita.fr>
22308
22309	Also handle the output file (--verbose) with obstacks.
22310
22311	* files.c (foutput): Remove.
22312	(output_obstack): New.
22313	Adjust all dependencies.
22314	* src/conflicts.c: Return a string.
22315	* src/system.h (obstack_grow_string): Rename as...
22316	(obstack_sgrow): this.  Be ready to work with non literals.
22317	(obstack_fgrow4): New.
22318
223192000-12-20  Akim Demaille  <akim@epita.fr>
22320
22321	* src/files.c (open_files): Fix the computation of short_base_name
22322	in the case of `-o foo.tab.c'.
22323
223242000-12-20  Akim Demaille  <akim@epita.fr>
22325
22326	* src/reader.c (copy_string, copy_comment, copy_comment2, copy_at)
22327	(copy_dollar): Now that everything uses obstacks, get rid of the
22328	FILE * parameters.
22329
223302000-12-20  Akim Demaille  <akim@epita.fr>
22331
22332	* src/files.c (open_files): Actually the `.output' file is based
22333	on the short_base_name, not base_name.
22334	* tests/suite.at (Checking output file names): Adjust.
22335
223362000-12-20  Akim Demaille  <akim@epita.fr>
22337
22338	* src/bison.s1: Remove, we now use directly...
22339	* src/bison.simple: this.
22340	* src/Makefile.am: Use pkgdata instead of data.
22341
223422000-12-20  Akim Demaille  <akim@epita.fr>
22343
22344	* src/files.c (guard_obstack): New.
22345	(open_files): Initialize it.
22346	(output_files): Dump it...
22347	* src/files.h: Export it.
22348	* src/reader.c (copy_guard): Use it.
22349
223502000-12-19  Akim Demaille  <akim@epita.fr>
22351
22352	* src/files.c (outfile, defsfile, actfile): Removed as global
22353	vars.
22354	(open_files): Don't compute them.
22355	(output_files): Adjust.
22356	(base_name, short_base_name): Be global.
22357	Adjust dependencies.
22358
223592000-12-19  Akim Demaille  <akim@epita.fr>
22360
22361	* src/files.c (strsuffix): New.
22362	(stringappend): Be just like strcat but allocate.
22363	(base_names): Eve out from open_files.
22364	Try to simplify the rather hairy computation of base_name and
22365	short_base_name.
22366	(open_files): Use it.
22367	* tests/suite.at (Checking output file names): New test.
22368
223692000-12-19  Akim Demaille  <akim@epita.fr>
22370
22371	* src/system.h (obstack_grow_literal_string): Rename as...
22372	(obstack_grow_string): this.
22373	* src/output.c (output_parser): Recognize `%% actions' instead of
22374	`$'.
22375	* src/bison.s1: s/$/%% actions/.
22376	* src/bison.hairy: Likewise.
22377
223782000-12-19  Akim Demaille  <akim@epita.fr>
22379
22380	* src/output.c (output_parser): Compute the `#line' lines when
22381	there are.
22382	* src/Makefile.am (bison.simple): Be a simple copy of bison.s1.
22383	Suggested by Hans Aberg.
22384
223852000-12-19  Akim Demaille  <akim@epita.fr>
22386
22387	Let the handling of the skeleton files be local to the procedures
22388	that use it.
22389
22390	* src/files.c (xfopen, xfclose, skeleton_find, guardfile): No
22391	longer static.
22392	(fparser, open_extra_files): Remove.
22393	(open_files, output_files): Don't take care of fparser.
22394	* src/files.h: Adjust.
22395	* src/output.c (output_parser): Open and close the file to the
22396	skeleton.
22397	* src/reader.c (read_declarations): When %semantic_parser, open
22398	fguard.
22399
224002000-12-19  Akim Demaille  <akim@epita.fr>
22401
22402	* src/file.h (BISON_SIMPLE, BISON_HAIRY): Move from here...
22403	* src/system.h (BISON_SIMPLE, BISON_HAIRY): ... to here.
22404
224052000-12-19  Akim Demaille  <akim@epita.fr>
22406
22407	* src/files.c (open_files): Yipee!  We no longer need all the code
22408	looking for `/tmp' since we have no tmp file.
22409
224102000-12-19  Akim Demaille  <akim@epita.fr>
22411
22412	* src/system.h (EXT_TAB, EXT_OUTPUT, EXT_STYPE_H, EXT_GUARD_C):
22413	New macros.
22414	* src/files.c (open_files): Less dependency on MSDOS etc.
22415
224162000-12-14  Akim Demaille  <akim@epita.fr>
22417
22418	* src/bison.s1 (YYLLOC_DEFAULT): New macro.
22419	Provide a default definition.
22420	Use it when executing the default @ action.
22421	* src/reader.c (reader_output_yylsp): No longer include
22422	`timestamp' and `text' in the default YYLTYPE.
22423
224242000-12-12  Akim Demaille  <akim@epita.fr>
22425
22426	* src/reader.c (copy_definition, parse_union_decl, copy_action)
22427	(copy_guard): Quote the file names.
22428	Reported by Laurent Mascherpa.
22429
224302000-12-12  Akim Demaille  <akim@epita.fr>
22431
22432	* src/output.c (output_headers, output_program, output): Be sure
22433	to escape special characters when outputting filenames.
22434	(ACTSTR_PROLOGUE, ACTSTR_EPILOGUE): Remove.
22435	(output_headers): Don't depend on them, Use ACTSTR.
22436
224372000-11-17  Akim Demaille  <akim@epita.fr>
22438
22439	* lib/obstack.h: Formatting changes.
22440	(obstack_grow, obstack_grow0): Don't cast WHERE at all: it
22441	prevents type checking.
22442	(obstack_ptr_grow, obstack_ptr_grow_fast): When assigning, don't
22443	cast the value to (void *): assigning a `foo *' to a `void *'
22444	variable is valid.
22445	(obstack_int_grow, obstack_int_grow_fast): Don't cast AINT to int.
22446	* src/reader.c (parse_union_decl): Typo: use obstack_1grow to
22447	append characters.
22448
224492000-11-17  Akim Demaille  <akim@epita.fr>
22450
22451	* tests/Makefile.am (suite.m4, regression.m4, calc.m4): Rename
22452	as...
22453	(suite.m4, regression.m4, calc.m4): these.
22454	* tests/atgeneral.m4: Update from CVS Autoconf.
22455
224562000-11-17  Akim Demaille  <akim@epita.fr>
22457
22458	* tests/regression.m4 (%union and --defines): New test,
22459	demonstrating a current bug in the obstack implementation.
22460
224612000-11-17  Akim Demaille  <akim@epita.fr>
22462
22463	* src/bison.s1 (_YY_DECL_VARIABLES, YY_DECL_VARIABLES): New
22464	macros.
22465	Use them to declare the variables which are global or local to
22466	`yyparse'.
22467
224682000-11-17  Akim Demaille  <akim@epita.fr>
22469
22470	* acconfig.h: Remove, no longer used.
22471
224722000-11-07  Akim Demaille  <akim@epita.fr>
22473
22474	* src: s/Copyright (C)/Copyright/g.
22475
224762000-11-07  Akim Demaille  <akim@epita.fr>
22477
22478	* src/reader.c (reader): #define YYLSP_NEEDED to 1 instead of just
22479	defining.
22480	* src/bison.s1: s/#ifdef YYLSP_NEEDED/#if YYLSP_NEEDED/.
22481
224822000-11-07  Akim Demaille  <akim@epita.fr>
22483
22484	* src/bison.s1 (YYLEX): Use #if instead of #ifdef.
22485	Merge in a single CPP if/else.
22486
224872000-11-07  Akim Demaille  <akim@epita.fr>
22488
22489	* src/output.c (output): Remove useless variables.
22490	* lib/obstack.c (obstack_grow, obstack_grow0): Rename the second
22491	argument `data' for consistency with the prototypes.
22492	Qualify it `const'.
22493	(obstack_copy, obstack_copy0): Rename the second argument as
22494	`address' for consistency.  Qualify it `const'.
22495	* lib/obstack.h (obstack_copy, obstack_copy0, obstack_grow)
22496	(obstack_grow0, obstack_ptr_grow, obstack_ptr_grow_fast): Qualify
22497	`const' their input argument (`data' or `address').
22498	Adjust the corresponding macros to include `const' in casts.
22499
225002000-11-03  Akim Demaille  <akim@epita.fr>
22501
22502	* src/Makefile.am (INCLUDES): s/PFILE/BISON_SIMPLE/.
22503	s/PFILE1/BISON_HAIRY/.
22504	Adjust dependencies.
22505
225062000-11-03  Akim Demaille  <akim@epita.fr>
22507
22508	For some reason, this was not applied.
22509
22510	* src/files.c [VMS]: No longer include `ssdef.h', no longer define
22511	`unlink': it's no longer used.
22512
225132000-11-03  Akim Demaille  <akim@epita.fr>
22514
22515	* src/files.c (skeleton_find): New function, eved out of...
22516	(open_files, open_extra_files): here.
22517
225182000-11-03  Akim Demaille  <akim@epita.fr>
22519
22520	Don't use `atexit'.
22521
22522	* src/files.c (obstack_save): New function.
22523	(done): Rename as...
22524	(output_files): this.
22525	Use `obstack_save'.
22526	* src/main.c (main): Don't use `atexit' to register `done', since
22527	it no longer has to remove tmp files, just call `output_files'
22528	when there are no errors.
22529
225302000-11-02  Akim Demaille  <akim@epita.fr>
22531
22532	* src/files.c [VMS]: No longer include `ssdef.h', no longer define
22533	`unlink': it's no longer used.
22534	* src/files.h: Formatting changes.
22535
225362000-11-02  Akim Demaille  <akim@epita.fr>
22537
22538	Remove the last uses of mktemp and unlink/delete.
22539
22540	* src/files.c (fdefines, ftable): Removed.
22541	(defines_ostack, table_obstack): New.
22542	Adjust dependencies of the former into uses of the latter.
22543	* src/output.c (output_short_or_char_table, output_short_table):
22544	Convert to using obstacks.
22545	* src/reader.c (copy_comment2): Accept one FILE * and two
22546	obstacks.
22547	(output_token_defines, reader_output_yylsp): Use obstacks.
22548	* src/system.h (obstack_fgrow3): New.
22549	* po/POTFILES.in: Adjust.
22550
225512000-11-01  Akim Demaille  <akim@epita.fr>
22552
22553	Change each use of `fattrs' into a use of `attrs_obstack'.
22554
22555	* src/reader.c (copy_at): Typo: s/yylloc/yyloc/.
22556	* src/files.c (fattrs): Remove.
22557	(attrs_obstack): New.
22558	Adjust all dependencies.
22559	(done): If SEMANTIC_PARSER, dump attrs_obstack into attrsfile.
22560
225612000-11-01  Akim Demaille  <akim@epita.fr>
22562
22563	Introduce obstacks.
22564	Change each use of `faction' into a use of `action_obstack'.
22565
22566	* lib/obstack.h, lib/obstack.c: New files.
22567	* src/files.c (faction): Remove.
22568	(action_obstack): New.
22569	Adjust all dependencies.
22570
225712000-10-20  Akim Demaille  <akim@epita.fr>
22572
22573	* lib/quote.h (PARAMS): New macro.  Use it.
22574
225752000-10-16  Akim Demaille  <akim@epita.fr>
22576
22577	* src/output.c (output_short_or_char_table): New function.
22578	(output_short_table, output_token_translations): Use it.
22579	(goto_actions): Use output_short_table.
22580
225812000-10-16  Akim Demaille  <akim@epita.fr>
22582
22583	* src/symtab.c (bucket_new): New function.
22584	(getsym): Use it.
22585
22586	* src/output.c (output_short_table): New argument to display the
22587	comment associated with the table.
22588	Adjust dependencies.
22589	(output_gram): Use it.
22590	(output_rule_data): Nicer output layout for YYTNAME.
22591
225922000-10-16  Akim Demaille  <akim@epita.fr>
22593
22594	* src/lex.c (read_typename): New function.
22595	(lex): Use it.
22596	* src/reader.c (copy_dollar): Likewise.
22597
225982000-10-16  Akim Demaille  <akim@epita.fr>
22599
22600	* src/reader.c (copy_comment2): Expect the input stream to be on
22601	the `/' which is suspected to open a comment, instead of being
22602	called after `//' or `/*' was read.
22603	(copy_comment, copy_definition, parse_union_decl, copy_action)
22604	(copy_guard): Adjust.
22605
226062000-10-16  Akim Demaille  <akim@epita.fr>
22607
22608	* src/reader.c (parse_expect_decl): Use `skip_white_space' and
22609	`read_signed_integer'.
22610
226112000-10-16  Akim Demaille  <akim@epita.fr>
22612
22613	* src/reader.c (copy_dollar): New function.
22614	(copy_guard, copy_action): Use it.
22615
226162000-10-16  Akim Demaille  <akim@epita.fr>
22617
22618	* lib/quote.h, lib/quote.c, lib/quotearg.h, lib/quotearg.c:
22619	* m4/prereq.m4, m4/c-bs-a.m4, m4/mbstate.m4:
22620	New files, from Fileutils 4.0.27.
22621	* src/main.c (printable_version): Remove.
22622	* src/lex.c, src/reader.c: Use `quote'.
22623
226242000-10-04  Akim Demaille  <akim@epita.fr>
22625
22626	* lib/error.c, lib/error.h: New files, needed by xmalloc.c.
22627
226282000-10-04  Akim Demaille  <akim@epita.fr>
22629
22630	* doc/bison.texinfo: Various typos spotted by Neil Booth.
22631
226322000-10-04  Akim Demaille  <akim@epita.fr>
22633
22634	When a literal string is used to define two different tokens,
22635	`bison -v' segfaults.
22636	Reported by Piotr Gackiewicz, and fixed by Neil Booth.
22637
22638	* tests/regression.m4: New file.
22639	Include the core of the sample provided by Piotr Gackiewicz.
22640	* src/reader.c (parse_token_decl): Diagnose bad cases, and proceed
22641	properly.
22642
226432000-10-04  Akim Demaille  <akim@epita.fr>
22644
22645	* src/reader.c (parse_expect_decl): Keep `count' within the size
22646	of `buffer'.
22647	From Neil Booth.
22648
226492000-10-02  Paul Eggert  <eggert@twinsun.com>
22650
22651	* bison.s1 (yyparse): Assign the default value
22652	unconditionally, to avoid a GCC warning and make the parser a
22653	tad smaller.
22654
226552000-10-02  Akim Demaille  <akim@epita.fr>
22656
22657	* src/getargs.c (getargs): Don't dump `--help' on unrecognized
22658	options.
22659
226602000-10-02  Akim Demaille  <akim@epita.fr>
22661
22662	* src/derives.c, src/print.c, src/reduce.c: To ease the
22663	translation, move some `\n' out of the translated strings.
22664
226652000-10-02  Akim Demaille  <akim@epita.fr>
22666
22667	The location tracking mechanism is precious for parse error
22668	messages.  Nevertheless, it is enabled only when `@n' is used in
22669	the grammar, which is a different issue (you can use it in error
22670	message, but not in the grammar per se).  Therefore, there should
22671	be another means to enable it.
22672
22673	* src/getargs.c (getargs): Support `--locations'.
22674	(usage): Report it.
22675	* src/getargs.h (locationsflag): Export it.
22676	* src/lex.c (percent_table): Support `%locations'.
22677	* src/reader.c (yylsp_needed): Remove this variable, now replaced
22678	with `locationsflag'.
22679	* doc/bison.texinfo: Document `--locations' and `%locations'.
22680	Sort the options.
22681	* tests/calc.m4: Test it.
22682
22683	For regularity of the names, replace each
22684	(nolineflag, toknumflag, rawtokenumflag, noparserflag): with...
22685	(no_lineflag, token_tableflag, rawflag, no_parserflag): this.
22686	In addition replace each `flag' with `_flag'.
22687
226882000-10-02  Akim Demaille  <akim@epita.fr>
22689
22690	Also test parse error messages, including with YYERROR_VERBOSE.
22691
22692	* tests/calc.m4 (calc.y): Add support for `exp = exp' (non
22693	associative).
22694	Use it to check the computations.
22695	Use it to check `nonassoc' is honored.
22696	(AT_DATA_CALC_Y): Equip `calc.y' with YYERROR_VERBOSE when passed
22697	`--yyerror-verbose'.
22698	(_AT_CHECK_CALC): Adjust to this option.
22699	(_AT_CHECK_CALC_ERROR): New macro to check parse error messages.
22700
227012000-10-02  Akim Demaille  <akim@epita.fr>
22702
22703	Test also `--verbose', `--defines' and `--name-prefix'.  Testing
22704	the latter demonstrates a flaw in the handling of non debugging
22705	parsers introduced by myself on 2000-03-16: `#define yydebug 0'
22706	was used in order to simplify:
22707
22708	#if YYDEBUG
22709	if (yydebug)
22710	{
22711	...
22712	}
22713	#endif
22714
22715	into
22716
22717	if (yydebug)
22718	{
22719	...
22720	}
22721
22722	unfortunately this leads to a CPP conflict when
22723	`--name-prefix=foo' is used since it produces `#define yydebug
22724	foodebug'.
22725
22726	* src/bison.s1 [!YYDEBUG]: Do not define yydebug.
22727	(YYDPRINTF): New macro.
22728	Spread its use.
22729	* tests/calc.m4 (AT_CHECK_CALC): Do require a title, build it from
22730	the bison options.
22731	Also test `--verbose', `--defines' and `--name-prefix'.
22732
227332000-10-02  Akim Demaille  <akim@epita.fr>
22734
22735	Improve the readability of the produced parsers.
22736
22737	* src/bison.s1: Formatting changes.
22738	Improve the comment related to the `$' mark.
22739	(yydefault): Don't fall through to `yyresume': `goto' there.
22740	* src/output.c (output_parser): When the `$' is met, skip the end
22741	of its line.
22742	New variable, `number_of_dollar_signs', to check there's exactly
22743	one `$' in the parser skeleton.
22744
227452000-10-02  Akim Demaille  <akim@epita.fr>
22746
22747	* lib/xstrdup.c: New file, from the fileutils.
22748	* src/reader.c (parse_token_decl, get_type_name, parse_type_decl)
22749	(parse_assoc_decl, parse_thong_decl, get_type): Use `xstrdup'
22750	instead of strlen + xmalloc + strcpy.
22751	* src/symtab.c (copys): Remove, use xstrdup instead.
22752
227532000-10-02  Akim Demaille  <akim@epita.fr>
22754
22755	* src/gram.h (associativity): New enum type which replaces the
22756	former CPP macros `RIGHT_ASSOC', `LEFT_ASSOC' and `NON_ASSOC' with
22757	`right_assoc', `left_assoc' and `non_assoc'.
22758	Adjust all dependencies.
22759	* src/reader.c: Formatting changes.
22760	(LTYPESTR): Don't define it, use it as a literal in
22761	`reader_output_yylsp'.
22762	* src/symtab.h (symbol_class): New enum type which replaces the
22763	former CPP macros `SUNKNOWN', `STOKEN and `SNTERM' with
22764	`sunknown', `stoken and `snterm'.
22765
227662000-10-02  Akim Demaille  <akim@epita.fr>
22767
22768	* src/getargs.c (fixed_outfiles): Rename as...
22769	(yaccflag): for consistency and accuracy.
22770	Adjust dependencies.
22771
227722000-10-02  Akim Demaille  <akim@epita.fr>
22773
22774	Use the more standard files `xalloc.h' and `xmalloc.c' instead of
22775	Bison's `allocate.c' and `alloc.h'.  This patch was surprisingly
22776	difficult and introduced a lot of core dump.  It turns out that
22777	Bison used an implementation of `xmalloc' based on `calloc', and
22778	at various places it does depend upon the initialization to 0.  I
22779	have not tried to isolate the pertinent places, and all the former
22780	calls to Bison's `xmalloc' are now using `XCALLOC'.  Someday,
22781	someone should address this issue.
22782
22783	* src/allocate.c, src/alloc.h, m4/bison-decl.m4: Remove.
22784	* lib/xmalloc.c, lib/xalloc.h, m4/malloc.m4, m4/realloc.m4: New
22785	files.
22786	Adjust dependencies.
22787	* src/warshall.h: New file.
22788	Propagate.
22789
227902000-10-02  Akim Demaille  <akim@epita.fr>
22791
22792	Various anti-`extern in *.c' changes.
22793
22794	* src/system.h: Include `assert.h'.
22795
227962000-10-02  Akim Demaille  <akim@epita.fr>
22797
22798	* src/state.h (nstates, final_state, first_state, first_shift)
22799	(first_reduction): Move their exportation from here...
22800	* src/LR0.h: to here.
22801	Adjust dependencies.
22802	* src/getargs.c (statisticsflag): New variable.
22803	Add support for `--statistics'.
22804	Adjust dependencies.
22805
22806	Remove a lot of now useless `extern' statements in most files.
22807
228082000-10-02  Akim Demaille  <akim@epita.fr>
22809
22810	* src/LR0.h: New file.
22811	Propagate its use.
22812
228132000-10-02  Akim Demaille  <akim@epita.fr>
22814
22815	* src/print.h: New file.
22816	Propagate its use.
22817	* src/print.c: Formatting and ordering changes.
22818	(verbose, terse): Replace with...
22819	(print_results): this new function.
22820	Adjust dependencies.
22821
228222000-10-02  Akim Demaille  <akim@epita.fr>
22823
22824	* src/conflicts.c (conflict_report): New function.
22825	(conflict_log, verbose_conflict_log): Replace with...
22826	(print_conflicts): this function.
22827	Adjust dependencies.
22828	* src/conflicts.h: New file.
22829	Propagate its inclusion.
22830
228312000-10-02  Akim Demaille  <akim@epita.fr>
22832
22833	* src/nullable.h: New file.
22834	Propagate its inclusion.
22835	* src/nullable.c: Formatting changes.
22836
228372000-10-02  Akim Demaille  <akim@epita.fr>
22838
22839	* src/reduce.h: New file.
22840	Propagate its inclusion.
22841	* src/reduce.c: Topological sort and other formatting changes.
22842	(bool, TRUE, FALSE): Move their definition to...
22843	* src/system.h: here.
22844
228452000-10-02  Akim Demaille  <akim@epita.fr>
22846
22847	* src/files.c: Formatting changes.
22848	(tryopen, tryclose, openfiles): Rename as...
22849	(xfopen, xfclose, open_files): this.
22850	(stringappend): static.
22851	* src/files.h: Complete the list of exported symbols.
22852	Propagate its use.
22853
228542000-10-02  Akim Demaille  <akim@epita.fr>
22855
22856	* src/reader.h: New file.
22857	Propagate its use instead of tedious list of `extern' and
22858	prototypes.
22859	* src/reader.c: Formatting changes, topological sort,
22860	s/register//.
22861
228622000-10-02  Akim Demaille  <akim@epita.fr>
22863
22864	* src/lex.h: Prototype `lex.c' exported functions.
22865	* src/reader.c: Adjust.
22866	* src/lex.c: Formatting changes.
22867	(safegetc): Rename as...
22868	(xgetc): this.
22869
228702000-10-02  Akim Demaille  <akim@epita.fr>
22871
22872	* src/lalr.h: New file.
22873	Propagate its inclusion instead of prototypes and `extern'.
22874	* src/lalr.c: Formatting changes, topological sorting etc.
22875
228762000-10-02  Akim Demaille  <akim@epita.fr>
22877
22878	* src/output.c (token_actions): Introduce a temporary array,
22879	YYDEFACT, that makes it possible for this function to use
22880	output_short_table.
22881
228822000-10-02  Akim Demaille  <akim@epita.fr>
22883
22884	`user_toknums' is output as a `short[]' in `output.c', while it is
22885	defined as a `int[]' in `reader.c'.  For consistency with the
22886	other output tables, `user_toknums' is now defined as a table of
22887	shorts.
22888
22889	* src/reader.c (user_toknums): Be a short table instead of an int
22890	table.
22891	Adjust dependencies.
22892
22893	Factor the short table outputs.
22894
22895	* src/output.c (output_short_table): New function.
22896	* src/output.c (output_gram, output_stos, output_rule_data)
22897	(output_base, output_table, output_check):  Use it.
22898
228992000-10-02  Akim Demaille  <akim@epita.fr>
22900
22901	* src/output.c (output): Topological sort of the functions, in
22902	order to get rid of the `static' prototypes.
22903	No longer use `register'.
22904	* src/output.h: New file.
22905	Propagate its inclusion in files explicitly prototyping functions
22906	from output.c.
22907
229082000-09-21  Akim Demaille  <akim@epita.fr>
22909
22910	* src/atgeneral.m4: Update from Autoconf.
22911
229122000-09-21  Akim Demaille  <akim@epita.fr>
22913
22914	* src/closure.h: New file.
22915	* src/closure.c: Formatting changes, topological sort over the
22916	functions, use of closure.h.
22917	(initialize_closure, finalize_closure):  Rename as...
22918	(new_closure, free_closure): these.  Adjust dependencies.
22919	* src/LR0.c: Formatting changes, topological sort, use of
22920	cloture.h.
22921	(initialize_states): Rename as...
22922	(new_states): this.
22923	* src/Makefile.am (noinst_HEADERS): Adjust.
22924
229252000-09-20  Akim Demaille  <akim@epita.fr>
22926
22927	* src/acconfig.h: Don't protect config.h against multiple
22928	inclusion.
22929	Don't define PARAMS.
22930	* src/system.h: Define PARAMS.
22931	Remove some of the ad-hoc CPP magic for DOS, VMS etc.: this is the
22932	purpose of config.h.  system.h must not try to fix wrong
22933	definitions in config.h.
22934
229352000-09-20  Akim Demaille  <akim@epita.fr>
22936
22937	* src/derives.h: New file.
22938	* src/main.c, src/derives.h: Use it.
22939	Formatting changes.
22940	* src/Makefile.am (noinst_HEADERS): Adjust.
22941
229422000-09-20  Akim Demaille  <akim@epita.fr>
22943
22944	* tests/atgeneral.m4: Update from Autoconf.
22945	* tests/calc.m4 (_AT_DATA_CALC_Y, AT_DATA_CALC_Y, _AT_CHECK_CALC)
22946	(AT_CHECK_CALC): New macros.
22947	Use these macros to test bison with options `', `--raw',
22948	`--debug', `--yacc', `--yacc --debug'.
22949
229502000-09-19  Akim Demaille  <akim@epita.fr>
22951
22952	* src/output.c: Formatting changes.
22953	* src/machine.h: Remove, leaving its contents in...
22954	* src/system.h: here.
22955	Include stdio.h.
22956	Adjust all dependencies on stdio.h and machine.h.
22957	* src/getargs.h: New file.
22958	Let all `extern' declarations about getargs.c be replaced with
22959	inclusion of `getargs.h'.
22960	* src/Makefile.am (noinst_HEADERS): Adjust.
22961
22962	* tests/calc.m4 (yyin): Be initialized in main, not on the global
22963	scope.
22964	(yyerror): Returns void, not int.
22965	* doc/bison.texinfo: Formatting changes.
22966
229672000-09-19  Akim Demaille  <akim@epita.fr>
22968
22969	* tests/calc.m4 (calc.y): Do not assign to stdin, as it's not
22970	portable.
22971
229722000-09-18  Akim Demaille  <akim@epita.fr>
22973
22974	* configure.in: Append WARNING_CFLAGS to CFLAGS.
22975	* src/Makefile.am (INCLUDES): Don't.
22976	Be ready to fetch headers in lib/.
22977
229782000-09-18  Akim Demaille  <akim@epita.fr>
22979
22980	* doc/bison.texinfo: Update the copyright.
22981	ANSIfy and GNUify the examples.
22982	Remove the old menu.
22983
229842000-09-18  Akim Demaille  <akim@epita.fr>
22985
22986	First set of tests: use the `calc' example from the documentation.
22987
22988	* src/bison.s1 (yyparse): Condition the code using `yytname' which
22989	is defined only when YYDEBUG is.
22990	* m4/atconfig.m4 (AT_CONFIG): Adjust to Autoconf 2.13.
22991	* src/files.c (tryopen, tryclose): Formatting changes.
22992	Move to the top and be static.
22993	* src/reader.c (read_signed_integer): Likewise.
22994	* tests/calc.m4: New file.
22995	* Makefile.am, suite.m4: Adjust.
22996	* m4/atconfig.m4: Set BISON_SIMPLE and BISON_HAIRY.
22997
229982000-09-18  Akim Demaille  <akim@epita.fr>
22999
23000	Add support for an Autotest test suite for Bison.
23001
23002	* m4/m4.m4, m4/atconfig.m4: New files.
23003	* m4/Makefile.am (EXTRA_DIST): Adjust.
23004	* tests/suite.m4, tests/Makefile.am, tests/atgeneral.m4: New
23005	files.
23006	* src/getargs.c: Display a more standard --version message.
23007	* src/reader.c (reader): Formatting changes.
23008	No longer depend upon VERSION_STRING.
23009	* configure.in: No longer use `dnl'.
23010	Set up the test suite and the new directory `tests/.
23011	(VERSION_STRING): Remove.
23012
230132000-04-14  Akim Demaille  <akim@epita.fr>
23014
23015	* src/reader.c (copy_comment2): New function, same as former
23016	`copy_comment', but outputs into two FILE *.
23017	(copy_comment): Use it.
23018	(parse_union_decl): Use it.
23019	(get_type, parse_start_decl): Use the same `invalid' message.
23020	(parse_start_decl, parse_union_decl): Use the same `multiple'
23021	message.
23022	(parse_union_decl, copy_guard, copy_action): Use the same
23023	`unmatched' message.
23024	* m4/Makefile.am (EXTRA_DIST): Add `warning.m4'.
23025
230262000-03-31  Akim Demaille  <akim@epita.fr>
23027
23028	* src/files.c (tryopen, tryclose): Move to the top.
23029	Be static.
23030
230312000-03-31  Akim Demaille  <akim@epita.fr>
23032
23033	* src/main.c (main): Don't call `done', exit does it.
23034
230352000-03-31  Akim Demaille  <akim@epita.fr>
23036
23037	* allocate.c: s/return (foo)/return foo/.
23038	* lalr.c: Likewise.
23039	* LR0.c: Likewise.
23040	* output.c: Likewise.
23041	* reader.c: Likewise.
23042	* symtab.c: Likewise.
23043	* vmsgetargs.c: Likewise.
23044
230452000-03-31  Akim Demaille  <akim@epita.fr>
23046
23047	Clean up the error reporting functions.
23048
23049	* src/report.c: New file.
23050	* src/report.h: Likewise.
23051	* src/Makefile.am: Adjust.
23052	* m4/error.m4: New file.
23053	* m4/Makefile.am: Adjust.
23054	* configure.in (jm_PREREQ_ERROR): Call it.
23055	* src/main.c (int_to_string, banner, fatal_banner, warn_banner):
23056	Remove.
23057	(fatal, fatals): Remove.  All callers use complain.c::fatal.
23058	(warn, warni, warns, warnss, warnss): Remove.  All callers use
23059	complain.c::complain.
23060	(toomany): Remove, use fatal instead.
23061	* src/files.c (done): No argument, use complain_message_count.
23062	* src/main.c (main): Register `done' to `atexit'.
23063
23064	* src/getargs.c (usage): More `fputs', less `fprintf'.
23065
230662000-03-28  Akim Demaille  <akim@epita.fr>
23067
23068	* lib/: New directory.
23069	* Makefile.am (SUBDIRS): Adjust.
23070	* configure.in: Adjust.
23071	(LIBOBJS): Although not used yet, AC_SUBST it, otherwise it's
23072	useless.
23073	* src/alloca.c: Moved to lib/.
23074	* src/getopt.c: Likewise.
23075	* src/getopt1.c: Likewise.
23076	* src/getopt.h: Likewise.
23077	* src/ansi2knr.c: Likewise.
23078	* src/ansi2knr.1: Likewise.
23079	* src/Makefile.am: Adjust.
23080	* lib/Makefile.am: New file.
23081
230822000-03-28  Akim Demaille  <akim@epita.fr>
23083
23084	* src/getargs.c (usage): Refresh the help message.
23085
230862000-03-17  Akim Demaille  <akim@epita.fr>
23087
23088	* src/getopt1.c: Updated from textutils 2.0e
23089	* src/getopt.c: Likewise.
23090	* src/getopt.h: Likewise.
23091
230922000-03-17  Akim Demaille  <akim@epita.fr>
23093
23094	* src/Makefile.am (bison.simple): Fix the awk program: quote only
23095	the file name, not the whole `#line LINE FILE'.
23096
230972000-03-17  Akim Demaille  <akim@epita.fr>
23098
23099	On syntax errors, report the token on which we choked.
23100
23101	* src/bison.s1 (yyparse): In the label yyerrlab, when
23102	YYERROR_VERBOSE, add yychar in msg.
23103
231042000-03-17  Akim Demaille  <akim@epita.fr>
23105
23106	* src/reader.c (copy_at): New function.
23107	(copy_guard): Use it.
23108	(copy_action): Use it.
23109
231102000-03-17  Akim Demaille  <akim@epita.fr>
23111
23112	Be kind to translators, save some useless translations.
23113
23114	* src/main.c (banner): New function.
23115	(fatal_banner): Use it.
23116	(warn_banner): Use it.
23117
231182000-03-17  Akim Demaille  <akim@epita.fr>
23119
23120	* src/reader.c (copy_definition): Use copy_string and
23121	copy_comment.  Removed now unused `match', `ended',
23122	`cplus_comment'.
23123	(copy_comment, copy_string): Moved, to be visible from
23124	copy_definition.
23125
231262000-03-17  Akim Demaille  <akim@epita.fr>
23127
23128	* src/reader.c (copy_string): Declare `static inline'.  No
23129	problems with inline, since it is checked by configure.
23130	(copy_comment): Likewise.
23131
231322000-03-17  Akim Demaille  <akim@epita.fr>
23133
23134	* src/reader.c (packsymbols): Formatting changes.
23135
231362000-03-17  Akim Demaille  <akim@epita.fr>
23137
23138	* src/reader.c (copy_comment): New function, factored out from:
23139	(copy_action): Use it.  Removed now unused `match', `ended',
23140	`cplus_comment'.
23141	(copy_guard): Likewise.
23142
231432000-03-17  Akim Demaille  <akim@epita.fr>
23144
23145	* src/reader.c (copy_string): New function, factored out from:
23146	(copy_action): Use it.
23147	(copy_guard): Likewise.
23148
231492000-03-17  Akim Demaille  <akim@epita.fr>
23150
23151	Change the handling of @s so that they behave exactly like $s.
23152	There is now a pseudo variable @$ (readble and writable), location
23153	of the lhs of the rule (by default ranging from the location of
23154	the first symbol of the rhs, to the location of the last symbol,
23155	or, if the rhs is empty, YYLLOC).
23156
23157	* src/bison.s1 [YYLSP_NEEDED] (yyloc): New variable, twin of
23158	yyval.
23159	(yyparse): When providing a default semantic action, provide a
23160	default location action.
23161	(after the $): No longer change `*YYLSP', just stack YYLOC the
23162	same way you stack YYVAL.
23163	* src/reader.c (read_declarations): Use warns.
23164	(copy_guard, case '@'): Also recognize `@$', expanded as `YYLOC'.
23165	(copy_action, case '@'): Likewise.
23166	Use a standard error message, to save useless work from
23167	translators.
23168
231692000-03-17  Akim Demaille  <akim@epita.fr>
23170
23171	* src/bison.s1: Formatting and cosmetics changes.
23172	* src/reader.c: Likewise.
23173	Update the Copyright notice.
23174
231752000-03-17  Akim Demaille  <akim@epita.fr>
23176
23177	* src/bison.s1 (#line): All set to `#line' only, since the
23178	Makefile now handles them.
23179
231802000-03-16  Akim Demaille  <akim@epita.fr>
23181
23182	* src/output.c (output_rule_data): Output the documentation of
23183	some of the tables.
23184	(Copyright notice): Update.
23185	Formatting changes.
23186
231872000-03-16  Akim Demaille  <akim@epita.fr>
23188
23189	* src/bison.s1 [!YYDEBUG]: Define yydebug to 0.  This allows to
23190	remove most `#if YYDEBUG != 0', since `if (yydebug)' is enough.
23191	One `#if YYDEBUG' remains, since it uses variables which are
23192	defined only if `YYDEBUG != 0'.
23193
231942000-03-16  Akim Demaille  <akim@epita.fr>
23195
23196	* src/bison.s1 (yyparse): Reorganize the definitions of the stacks
23197	and related variables so that the similarities are highlighted.
23198
231992000-03-16  Akim Demaille  <akim@epita.fr>
23200
23201	* src/bison.s1: Properly indent CPP directives.
23202
232032000-03-16  Akim Demaille  <akim@epita.fr>
23204
23205	* src/bison.s1: Properly indent the `alloca' CPP section.
23206
232072000-03-16  Akim Demaille  <akim@epita.fr>
23208
23209	Do not hard code values of directories in `configure.in'.
23210	Update the `configure' tool chain.
23211
23212	* configure.in (XPFILE, XPFILE1, LOCALEDIR): Remove, handled by
23213	src/makefile.am.
23214	(VERSION_STRING): Use the third arg of AC_DEFINE_UNQUOTED.
23215	(AC_OUTPUT): Add m4/Makefile.
23216	Bump to bison 1.28a, 1.29 has never been released.
23217	* acconfig.h (XPFILE, XPFILE1, LOCALEDIR): Remove, since they are
23218	handled via src/Makefile.am.
23219	(VERSION_STRING, PROTOTYPES, ENABLE_NLS, HAVE_CATGETS,
23220	HAVE_GETTEXT, HAVE_LC_MESSAGES, HAVE_STPCPY): Remove, handled by
23221	autoheader.
23222	* Makefile.am (SUBDIRS): Add m4.
23223	(ACLOCAL_AM_FLAGS): New variable.
23224	(AUTOMAKE_OPTIONS): Add check-news.
23225	* src/Makefile.am (bison.simple): Use awk to replace #line lines with
23226	the proper line number and file name.
23227	(DEFS): Propagate the location of bison library files and of the
23228	locale files.
23229	(INCLUDES): Added `-I ..' so that one can compile with srcdir !=
23230	builddir.
23231	* acinclude.m4: Remove, replaced by the directory m4.
23232	* m4/Makefile.am (EXTRA_DIST): New variable.
23233	* m4/gettext.m4: New file, from the fileutils.
23234	* m4/lcmessage.m4: Likewise
23235	* m4/progtest.m4: Likewise.
23236	* m4/bison-decl.m4: New file, extracted from former acinclude.m4.
23237
232382000-03-10  Akim Demaille  <akim@epita.fr>
23239
23240	* src/closure.c:
23241	Formatting changes of various comments.
23242	Respect the GNU coding standards at various places.
23243	Don't use `_()' when no translation is needed.
23244
232451999-12-13  Jesse Thilo  <jthilo@gnu.org>
23246
23247	* src/files.c:
23248	OS/2 honors TMPDIR environment variable.
23249
232501999-12-13  Jesse Thilo  <jthilo@gnu.org>
23251
23252	* doc/bison.texinfo: Tweaked spelling and grammar.
23253	Updated ISBN.
23254	Removed reference to price of printed copy.
23255	Mention BISON_SIMPLE and BISON_HAIRY.
23256
232571999-12-13  Jesse Thilo  <jthilo@gnu.org>
23258
23259	* configure.in, NEWS:
23260	Bison 1.29 released.
23261
232621999-10-27  Jesse Thilo  <jthilo@gnu.org>
23263
23264	* doc/.cvsignore, doc/Makefile.am, doc/refcard.tex:
23265	Added reference card.
23266
232671999-07-26  Jesse Thilo  <jthilo@gnu.org>
23268
23269	* po/ru.po: Added Russian translation.
23270
232711999-07-26  Jesse Thilo  <jthilo@gnu.org>
23272
23273	* configure.in: Added Russian translation.
23274
232751999-07-06  Jesse Thilo  <jthilo@gnu.org>
23276
23277	* configure.in, NEWS, README:
23278	Released version 1.28.
23279
232801999-06-14  Jesse Thilo  <jthilo@gnu.org>
23281
23282	* src/system.h:
23283	Squashed redefinition warning on some systems.
23284
23285	* src/getargs.c, src/Makefile.am, src/reader.c, src/version.c:
23286	Have configure build version string instead of relying on ANSI string
23287	concatentation.
23288
232891999-06-14  Jesse Thilo  <jthilo@gnu.org>
23290
23291	* po/POTFILES.in: Got rid of version.c.
23292
232931999-06-14  Jesse Thilo  <jthilo@gnu.org>
23294
23295	* acconfig.h, configure.in:
23296	Have configure build version string instead of relying on ANSI string
23297	concatentation.
23298
232991999-06-08  Jesse Thilo  <jthilo@gnu.org>
23300
23301	* doc/bison.1:
23302	Dropped mention of `+' for long-named options.
23303
233041999-05-30  Jesse Thilo  <jthilo@gnu.org>
23305
23306	* src/files.c: Added <unistd.h> for unlink().
23307
23308	* src/Makefile.am, src/system.h:
23309	I18n fixes.
23310
233111999-05-30  Jesse Thilo  <jthilo@gnu.org>
23312
23313	* README: Added a FAQ list.
23314
23315	* configure.in, acconfig.h:
23316	I18n fixes.
23317
233181999-05-30  Jesse Thilo  <jthilo@gnu.org>
23319
23320	* doc/FAQ, doc/Makefile.am:
23321	Added a FAQ list.
23322
233231999-05-19  Jesse Thilo  <jthilo@gnu.org>
23324
23325	* src/alloc.h, src/symtab.h, src/version.c:
23326	Protected inclusion of "config.h" with HAVE_CONFIG_H.
23327
233281999-04-18  Jesse Thilo  <jthilo@gnu.org>
23329
23330	* src/.cvsignore, src/Makefile.am:
23331	Reorganized: sources in `src', documentation in `doc'.
23332
23333	* src/lex.c (literalchar):
23334	fixed the code for escaping double quotes (thanks
23335	Jonathan Czisny.)
23336
233371999-04-18  Jesse Thilo  <jthilo@gnu.org>
23338
23339	* po/de.po, po/es.po, po/fr.po, po/nl.po, po/POTFILES.in:
23340	Adjusted paths to reflect directory reorganization.
23341
233421999-04-18  Jesse Thilo  <jthilo@gnu.org>
23343
23344	* doc/.cvsignore, doc/Makefile.am:
23345	Reorganized: sources in `src', documentation in `doc'.
23346
233471999-04-18  Jesse Thilo  <jthilo@gnu.org>
23348
23349	* configure.in:
23350	Updated AC_INIT file to reflect directory reorganization.
23351
23352	* configure.in, .cvsignore, Makefile.am, POTFILES.in:
23353	Reorganized: sources in `src', documentation in `doc'.
23354
233551999-04-13  Jesse Thilo  <jthilo@gnu.org>
23356
23357	* src/allocate.c:
23358	Don't declare calloc() and realloc() if not necessary.
23359
233601999-04-13  Jesse Thilo  <jthilo@gnu.org>
23361
23362	* configure.in, acconfig.h, acinclude.m4:
23363	Don't declare calloc() and realloc() if not necessary.
23364
233651999-03-23  Jesse Thilo  <jthilo@gnu.org>
23366
23367	* po/.cvsignore: Added i18n support.
23368
233691999-03-23  Jesse Thilo  <jthilo@gnu.org>
23370
23371	* acconfig.h, configure.in, Makefile.am:
23372	Added i18n support.
23373
233741999-03-22  Jesse Thilo  <jthilo@gnu.org>
23375
23376	* src/bison.s1: Fixed #line numbers.
23377
233781999-03-15  Jesse Thilo  <jthilo@gnu.org>
23379
23380	* po/es.po, po/fr.po, po/nl.po, po/de.po:
23381	Added PO files from Translation Project.
23382
233831999-03-03  Jesse Thilo  <jthilo@gnu.org>
23384
23385	* Makefile.am:
23386	Added support for non-ANSI compilers (ansi2knr).
23387
233881999-02-16  Jesse Thilo  <jthilo@gnu.org>
23389
23390	* configure.in: Bumped version number to 1.27.
23391
23392	* Makefile.am:
23393	Added `bison.simple' to list of files removed by `make distclean'.
23394
233951999-02-12  Jesse Thilo  <jthilo@gnu.org>
23396
23397	* src/files.c, src/files.h:
23398	Defined locations of parser files in config.h instead of Makefile.
23399
234001999-02-12  Jesse Thilo  <jthilo@gnu.org>
23401
23402	* acconfig.h, acinclude.m4, configure.in, Makefile.am:
23403	Defined locations of parser files in config.h instead of Makefile.
23404
234051999-02-09  Jesse Thilo  <jthilo@gnu.org>
23406
23407	* Makefile.am:
23408	Removed inappropriate use of $< macro.
23409
234101999-02-05  Jesse Thilo  <jthilo@gnu.org>
23411
23412	* po/Makefile.in.in, po/POTFILES.in:
23413	Add `po' directory skeleton.
23414
234151999-01-27  Jesse Thilo  <jthilo@gnu.org>
23416
23417	* README: Document help-bison list.
23418
23419	* configure.in: Add check for mkstemp().
23420
234211999-01-20  Jesse Thilo  <jthilo@gnu.org>
23422
23423	* src/conflicts.c, src/LR0.c, src/output.c, src/reader.c:
23424	Hush a few compiler warnings.
23425
23426	* src/files.c:
23427	Add tryclose(), which verifies that fclose was successful.
23428	Hush a couple of compiler warnings.
23429
234301999-01-20  Jesse Thilo  <jthilo@gnu.org>
23431
23432	* Makefile.am, OChangeLog:
23433	ChangeLog is now automatically generated.  Include the old version as
23434	OChangeLog.
23435
234361999-01-14  Jesse Thilo  <jthilo@gnu.org>
23437
23438	* src/gram.h, src/lalr.c, src/lex.c, src/lex.h, src/machine.h, src/main.c, src/nullable.c, src/output.c, src/print.c, src/reader.c, src/reduce.c, src/state.h, src/symtab.c, src/symtab.h, src/types.h, src/vmsgetargs.c, src/warshall.c, src/allocate.c, src/alloc.h, src/bison.s1, src/closure.c, src/conflicts.c, src/derives.c, src/files.c, src/files.h, src/getargs.c, src/gram.c, src/LR0.c:
23439	Update FSF address.
23440
234411999-01-14  Jesse Thilo  <jthilo@gnu.org>
23442
23443	* doc/bison.texinfo: Fix formatting glitch.
23444
23445	* doc/bison.texinfo: Update FSF address.
23446
234471999-01-14  Jesse Thilo  <jthilo@gnu.org>
23448
23449	* acconfig.h: Update FSF address.
23450
234511999-01-08  Jesse Thilo  <jthilo@gnu.org>
23452
23453	* src/system.h:
23454	Don't define PACKAGE here, since config.h defines it.
23455
234561998-12-30  Jesse Thilo  <jthilo@gnu.org>
23457
23458	* src/reader.c: Update copyright date.
23459
23460	* src/main.c:
23461	Ditch sprintf to statically-sized buffers in fatal/warn functions in
23462	favor of output directly to stderr (avoids buffer overruns).
23463
23464	* src/reader.c: Some checks for premature EOF.
23465
23466	* src/allocate.c, src/alloc.h, src/closure.c, src/conflicts.c, src/derives.c, src/getargs.c, src/gram.c, src/lalr.c, src/lex.c, src/LR0.c, src/main.c, src/nullable.c, src/output.c, src/print.c, src/reduce.c, src/symtab.c, src/symtab.h, src/warshall.c:
23467	Use prototypes if the compiler understands them.
23468
23469	* src/files.c: Honor TMPDIR on Unix hosts.
23470	Use prototypes if the compiler understands them.
23471
23472	* src/reader.c:
23473	Fix a couple of buffer overrun bugs.
23474	Use prototypes if the compiler understands them.
23475
23476	* src/system.h: Include unistd.h and ctype.h.
23477	Use #ifdef instead of #if for NLS symbols.
23478
234791998-12-30  Jesse Thilo  <jthilo@gnu.org>
23480
23481	* doc/bison.texinfo:
23482	Delete comment "consider using @set for edition number, etc..." since
23483	we now are doing so.
23484
234851998-12-30  Jesse Thilo  <jthilo@gnu.org>
23486
23487	* configure.in:
23488	Use prototypes if the compiler understands them.
23489
23490	* NEWS: Document 1.26 highlights.
23491
23492	* Makefile.am: Require Automake 1.3 or later.
23493
23494	* acconfig.h:
23495	Use prototypes if the compiler understands them.
23496
234971998-12-29  Jesse Thilo  <jthilo@gnu.org>
23498
23499	* src/version.c:
23500	Use VERSION symbol from automake for version number.
23501
235021998-12-29  Jesse Thilo  <jthilo@gnu.org>
23503
23504	* acconfig.h, configure.in, version.cin:
23505	Use VERSION symbol from automake for version number.
23506
235071998-11-28  Jesse Thilo  <jthilo@gnu.org>
23508
23509	* Makefile.am:
23510	Distribute original version of simple parser (bison.s1), not built
23511	version (bison.simple).
23512
235131998-11-28  Jesse Thilo  <jthilo@gnu.org>
23514
23515	* doc/bison.texinfo: Add info dir entry.
23516
23517	* doc/bison.texinfo:
23518	Let automake put version number into documentation.
23519
235201998-11-26  Jesse Thilo  <jthilo@gnu.org>
23521
23522	* src/bison.cld, src/build.com, src/vmshlp.mar:
23523	Add non-RCS files from /gd/gnu/bison.
23524
235251998-11-26  Jesse Thilo  <jthilo@gnu.org>
23526
23527	* doc/bison.1:
23528	Document the BISON_HAIRY and BISON_SIMPLE variables.
23529
235301998-11-25  Jesse Thilo  <jthilo@gnu.org>
23531
23532	* src/version.c: Build version.c automatically.
23533
23534	* src/reader.c:
23535	Fix token numbering (used to start at 258, not 257).
23536
23537	* src/system.h: Include config.h.
23538
23539	* src/getargs.c: Update bug report address.
23540
23541	* src/alloca.c, src/getopt1.c, src/getopt.c, src/getopt.h:
23542	Get latest copies of alloca.c, getopt.c, getopt.h, getopt1.c from gnu.org.
23543
235441998-11-25  Jesse Thilo  <jthilo@gnu.org>
23545
23546	* Makefile.am:
23547	Rename bison.simple to bison.s1 (bison.simple is then built from bison.s1).
23548
23549	* configure.in, version.cin:
23550	Build version.c automatically.
23551
23552	* AUTHORS: Add AUTHORS file.
23553
23554	* README: Update bug report address.
23555
23556	* bison.simple:
23557	Rename bison.simple to bison.s1 (bison.simple is then built from bison.s1).
23558
23559	* configure.in, Makefile.am, Makefile.in, stamp-h.in:
23560	Add automake stuff.
23561
235621998-11-25  Jesse Thilo  <jthilo@gnu.org>
23563
23564	* doc/bison.texinfo: Clean up some formatting.
23565
235661998-05-05  Richard Stallman  <rms@gnu.org>
23567
23568	* doc/bison.texinfo:
23569	Explain better why to make a pure parser.
23570
235711998-01-05  Richard Stallman  <rms@gnu.org>
23572
23573	* src/files.c (openfiles):
23574	[_WIN32 && !__CYGWIN32__] Use TEMP or Temp to
23575	find a temporary directory, if possible.  Do not unlink files while
23576	they are open.
23577
235781997-08-25  Richard Stallman  <rms@gnu.org>
23579
23580	* src/reader.c (stack_offset;):
23581	Change some warni to warns.
23582
23583	* src/lex.c (literalchar): Use warns, not warni.
23584
235851997-06-28  Richard Stallman  <rms@gnu.org>
23586
23587	* src/bison.s1: Add a Bison version comment.
23588
23589	* src/main.c (fatal, warn, berror):
23590	Use program_name.
23591
235921997-06-28  Richard Stallman  <rms@gnu.org>
23593
23594	* Makefile.in (bison_version): New variable.
23595	(dist): Use that variable.
23596	(bison.s1): Substitute the Bison version into bison.simple.
23597
23598	* bison.simple: Add a Bison version comment.
23599
236001997-06-18  Richard Stallman  <rms@gnu.org>
23601
23602	* src/main.c (fatal, warn, berror):
23603	Make error messages standard.
23604	(toomany): Improve error message text.
23605
23606	* src/LR0.c, src/closure.c, src/conflicts.c, src/derives.c, src/files.c, src/lalr.c, src/lex.c, src/nullable.c, src/output.c, src/print.c, src/reader.c, src/reduce.c, src/symtab.c:
23607	new.h renamed to alloc.h.
23608
236091997-06-18  Richard Stallman  <rms@gnu.org>
23610
23611	* Makefile.in: new.h renamed to alloc.h.
23612
236131997-05-24  Richard Stallman  <rms@gnu.org>
23614
23615	* src/lex.c (literalchar):
23616	Fix the code for escaping \, " and '.
23617
23618	(lex): Avoid trouble when there are many chars
23619	to discard in a char literal with just several chars in it.
23620
236211997-05-17  Richard Stallman  <rms@gnu.org>
23622
23623	* src/bison.s1:
23624	Use malloc, if using alloca is troublesome.
23625	(YYSTACK_USE_ALLOCA): New flag macro.
23626	Define it for some systems and compilers.
23627	(YYSTACK_ALLOC): New macro.
23628	(yyparse): Use YYSTACK_ALLOC to allocate stack.
23629	If it was malloc'd, free it.
23630
236311997-05-17  Richard Stallman  <rms@gnu.org>
23632
23633	* bison.simple:
23634	Use malloc, if using alloca is troublesome.
23635	(YYSTACK_USE_ALLOCA): New flag macro.
23636	Define it for some systems and compilers.
23637	(YYSTACK_ALLOC): New macro.
23638	(yyparse): Use YYSTACK_ALLOC to allocate stack.
23639	If it was malloc'd, free it.
23640
236411997-04-23  Richard Stallman  <rms@gnu.org>
23642
23643	* src/bison.s1:
23644	(alloca) [__hpux]: Always define as __builtin_alloca.
23645
236461997-04-23  Richard Stallman  <rms@gnu.org>
23647
23648	* bison.simple:
23649	(alloca) [__hpux]: Always define as __builtin_alloca.
23650
236511997-04-22  Richard Stallman  <rms@gnu.org>
23652
23653	* src/bison.s1:
23654	[__hpux]: Include alloca.h (right for HPUX 10)
23655	instead of declaring alloca (right for HPUX 9).
23656
23657	* src/bison.s1 (__yy_memcpy):
23658	Declare arg `count' as unsigned int.
23659	(yyparse): Cast third arg to __yy_memcpy to unsigned int.
23660
236611997-04-22  Richard Stallman  <rms@gnu.org>
23662
23663	* bison.simple:
23664	[__hpux]: Include alloca.h (right for HPUX 10)
23665	instead of declaring alloca (right for HPUX 9).
23666
23667	* bison.simple (__yy_memcpy):
23668	Declare arg `count' as unsigned int.
23669	(yyparse): Cast third arg to __yy_memcpy to unsigned int.
23670
236711997-01-03  Richard Stallman  <rms@gnu.org>
23672
23673	* src/allocate.c: [__STDC__ or _MSC_VER]:
23674	Declare calloc and realloc to return void *.
23675
236761997-01-02  Richard Stallman  <rms@gnu.org>
23677
23678	* src/system.h:
23679	[_MSC_VER]: Include stdlib.h and process.h.
23680	[_MSC_VER] (getpid): Define as macro--translate it to _getpid.
23681
23682	* src/main.c (main): Return FAILURE as a value.
23683	(printable_version): Declare arg as int, not char.
23684
236851997-01-02  Richard Stallman  <rms@gnu.org>
23686
23687	* Makefile.in (dist):
23688	Explicitly check for symlinks, and copy them.
23689
236901996-12-19  Richard Stallman  <rms@gnu.org>
23691
23692	* src/files.c:
23693	[_MSC_VER] (XPFILE, XPFILE1): Define, if not already defined.
23694
236951996-12-18  Paul Eggert  <eggert@gnu.org>
23696
23697	* src/bison.s1 (yyparse):
23698	If __GNUC__ and YYPARSE_PARAM are both defined,
23699	declare yyparse to have a void * argument.
23700
237011996-12-18  Paul Eggert  <eggert@gnu.org>
23702
23703	* bison.simple (yyparse):
23704	If __GNUC__ and YYPARSE_PARAM are both defined,
23705	declare yyparse to have a void * argument.
23706
237071996-12-17  Richard Stallman  <rms@gnu.org>
23708
23709	* src/reduce.c (nbits): Add some casts.
23710
237111996-08-12  Richard Stallman  <rms@gnu.org>
23712
23713	* src/bison.s1: Test _MSDOS as well as _MSDOS_.
23714
237151996-08-12  Richard Stallman  <rms@gnu.org>
23716
23717	* bison.simple: Test _MSDOS as well as _MSDOS_.
23718
237191996-07-31  Richard Stallman  <rms@gnu.org>
23720
23721	* src/bison.s1:
23722	[__sun && __i386]: Include alloca.h.
23723
237241996-07-31  Richard Stallman  <rms@gnu.org>
23725
23726	* bison.simple:
23727	[__sun && __i386]: Include alloca.h.
23728
237291996-07-30  Richard Stallman  <rms@gnu.org>
23730
23731	* src/bison.s1: Comment change.
23732
23733	* src/bison.s1: Test _MSDOS_, not MSDOS.
23734
237351996-07-30  Richard Stallman  <rms@gnu.org>
23736
23737	* bison.simple: Comment change.
23738
23739	* bison.simple: Test _MSDOS_, not MSDOS.
23740
237411996-06-01  Richard Stallman  <rms@gnu.org>
23742
23743	* src/reduce.c, src/reader.c, src/print.c, src/output.c, src/nullable.c, src/lex.c, src/lalr.c, src/getargs.c, src/derives.c, src/conflicts.c, src/closure.c, src/allocate.c:
23744	Insert `_' macro around many string constants.
23745
23746	* src/main.c:
23747	Insert `_' macro around many string constants.
23748
23749	(main): Call setlocale, bindtextdomain and textdomain.
23750
23751	* src/system.h: [HAVE_LOCALE_H]: Include locale.h.
23752	[! HAVE_LOCALE_H] (setlocale): Define as no-op.
23753	[ENABLE_NLS]: Include libintl.h.
23754	[ENABLE_NLS] (gettext): Define.
23755	[! ENABLE_NLS] (bintextdomain, textdomain, _): Consolation definitions.
23756	(N_, PACKAGE, LOCALEDIR): New macros.
23757
237581996-06-01  Richard Stallman  <rms@gnu.org>
23759
23760	* POTFILES.in: New file.
23761
23762	* Makefile.in (allocate.o):
23763	Define target explicitly.
23764
23765	* Makefile.in (CFLAGS): Set to @CFLAGS@.
23766	(LDFLAGS): Set to @LDFLAGS@.
23767	(configure): Run autoconf only if preceding `cd' succeeds.
23768	(bison.s1): Redirect output to temporary file then move the
23769	temporary to the target, rather than redirecting directly to bison.s1.
23770	(clean): Remove config.status and config.log.
23771	(distclean): Don't remove config.status here.
23772
237731996-05-12  Richard Stallman  <rms@gnu.org>
23774
23775	* src/bison.s1:
23776	(__yy_memcpy) [__cplusplus]: Reorder declarations of variables f and t.
23777
237781996-05-12  Richard Stallman  <rms@gnu.org>
23779
23780	* bison.simple:
23781	(__yy_memcpy) [__cplusplus]: Reorder declarations of variables f and t.
23782
237831996-05-11  Richard Stallman  <rms@gnu.org>
23784
23785	* src/bison.s1 (__yy_memcpy):
23786	Really reorder the args, as was supposedly done on Feb 14 1995.
23787	(yyparse): Calls changed accordingly.
23788
237891996-05-11  Richard Stallman  <rms@gnu.org>
23790
23791	* Makefile.in (dist): Don't use $(srcdir).
23792
23793	* bison.simple (__yy_memcpy):
23794	Really reorder the args, as was supposedly done on Feb 14 1995.
23795	(yyparse): Calls changed accordingly.
23796
237971996-01-27  Richard Stallman  <rms@gnu.org>
23798
23799	* src/output.c (output_rule_data):
23800	Test YYERROR_VERBOSE in the conditional
23801	around the definition of ttyname.
23802
238031995-12-29  Richard Stallman  <rms@gnu.org>
23804
23805	* src/bison.s1:
23806	Fix line numbers in #line commands.
23807
238081995-12-29  Richard Stallman  <rms@gnu.org>
23809
23810	* bison.simple:
23811	Fix line numbers in #line commands.
23812
238131995-12-27  Richard Stallman  <rms@gnu.org>
23814
23815	* src/bison.s1 (YYPARSE_PARAM_DECL):
23816	In C++, make it always null.
23817	(YYPARSE_PARAM_ARG): New macro.
23818	(yyparse): Use YYPARSE_PARAM_ARG.
23819
238201995-12-27  Richard Stallman  <rms@gnu.org>
23821
23822	* bison.simple (YYPARSE_PARAM_DECL):
23823	In C++, make it always null.
23824	(YYPARSE_PARAM_ARG): New macro.
23825	(yyparse): Use YYPARSE_PARAM_ARG.
23826
238271995-11-29  Richard Stallman  <rms@gnu.org>
23828
23829	* doc/bison.texinfo:
23830	Describe literal string tokens, %raw, %no_lines, %token_table.
23831
238321995-11-29  Daniel Hagerty  <hag@gnu.org>
23833
23834	* doc/bison.texinfo: Fixed update date
23835
238361995-10-16  Richard Stallman  <rms@gnu.org>
23837
23838	* src/version.c: Version 1.25.
23839
238401995-10-16  Richard Stallman  <rms@gnu.org>
23841
23842	* NEWS: *** empty log message ***
23843
238441995-10-16  Richard Stallman  <rms@gnu.org>
23845
23846	* doc/bison.1, doc/bison.rnh:
23847	Add new options.
23848
238491995-10-15  Richard Stallman  <rms@gnu.org>
23850
23851	* src/vmsgetargs.c, src/getargs.c:
23852	Added -n, -k, and -raw switches.
23853	(noparserflag, toknumflag, rawtoknumflag): New variables.
23854
23855	* src/symtab.h (SALIAS):
23856	New #define for adding aliases to %token.
23857	(struct bucket): Added `alias' field.
23858
23859	* src/reduce.c (reduce_grammar):
23860	Revise error message.
23861	(print_notices): Remove final `.' from error message.
23862
23863	* src/reader.c (reader_output_yylsp):
23864	New function.
23865	(readgram): Use `#if 0' around code that accepted %command
23866	inside grammar rules:  The documentation doesn't allow it,
23867	and it will fail since the %command processors scan for the next %.
23868	(parse_token_decl):  Extended the %token
23869	declaration to allow a multi-character symbol as an alias.
23870	(parse_thong_decl): New function.
23871	(read_declarations): Added %thong declarations.
23872	(read_declarations): Handle NOOP to deal with allowing
23873	% declarations as another means to specify the flags.
23874	(readgram): Allow %prec prior to semantics embedded in a rule.
23875	(skip_to_char, read_declarations, copy_definition)
23876	(parse_token_decl, parse_start_decl, parse_type_decl)
23877	(parse_assoc_decl, parse_union_decl, parse_expect_decl)
23878	(get_type_name, copy_guard, copy_action, readgram)
23879	(get_type, packsymbols):  Revised most error messages.
23880	Changed `fatal' to `warnxxx' to avoid aborting for error.
23881	Revised and use multiple warnxxx functions to avoid using VARARGS1.
23882	(read_declarations): Improve the error message for
23883	an invalid character.  Do not abort.
23884	(read_declarations, copy_guard, copy_action): Use
23885	printable_version to avoid unprintable characters in printed output.
23886	(parse_expect_decl): Error if argument to %expect exceeds 10 digits.
23887	(parse_token_decl, parse_assoc_decl, parse_type_decl, get_type):
23888	Allow the type of a non-terminal can be given
23889	more than once, as long as all specifications give the same type.
23890
23891	* src/output.c:
23892	(output_headers, output_trailers, output, output_gram)
23893	(output_rule_data): Implement noparserflag variable.
23894	Implement toknumflag variable.
23895	(output): Call reader_output_yylsp to output LTYPESTR.
23896
23897	* src/main.c (main):
23898	 If reader sees an error, don't process the grammar.
23899	(fatals): Updated to not use VARARGS1.
23900	(printable_version, int_to_string, warn, warni, warns, warnss)
23901	(warnsss): New error reporting functions.  Avoid abort for error.
23902
23903	* src/lex.h:
23904	Added THONG and NOOP for alias processing.
23905	Added SETOPT for the new code that allows setting options with %flags.
23906
23907	* src/lex.c:
23908	Include getopt.h.  Add some extern decls.
23909	(safegetc): New function to deal with EOF gracefully.
23910	(literalchar); new function to deal with reading \ escapes.
23911	(lex): Use literalchar.
23912	(lex): Implemented "..." tokens.
23913	(literalchar, lex, parse_percent_token): Made tokenbuffer
23914	always contain the token.  This includes growing the token
23915	buffer while reading an integer.
23916	(parse_percent_token): Replaced if-else statement with percent_table.
23917	(parse_percent_token): Added % declarations as another
23918	way to specify the flags -n, -l, and -r.  Also added hooks for
23919	-d, -k, -y, -v, -t, -p, -b, -o, but implementation requires
23920	major changes to files.c.
23921	(lex) Retain in the incoming stream a character following
23922	an incorrect '/'.
23923	(skip_white_space, lex):  Revised most error messages
23924	and changed fatal to warn to avoid aborting.
23925	(percent_table):  Added %thong declarations.
23926
23927	* src/gram.h: Comment changes.
23928
23929	* src/files.c (openfiles, open_extra_files, done):
23930	 Add faction flag
23931	and actfile file.  Handle noparserflag.  Both for -n switch.
23932
23933	* src/conflicts.c (resolve_sr_conflict):
23934	Remove use of alloca.
23935
239361995-06-01  Jim Meyering  <meyering@gnu.org>
23937
23938	* doc/bison.texinfo: *** empty log message ***
23939
239401995-05-06  Richard Stallman  <rms@gnu.org>
23941
23942	* src/bison.s1: Comment change.
23943
239441995-05-06  Richard Stallman  <rms@gnu.org>
23945
23946	* bison.simple: Comment change.
23947
239481995-05-03  Richard Stallman  <rms@gnu.org>
23949
23950	* src/version.c: Version now 1.24.
23951
23952	* src/bison.s1: Change distribution terms.
23953
23954	* src/version.c: Version now 1.23.
23955
239561995-05-03  Richard Stallman  <rms@gnu.org>
23957
23958	* doc/bison.texinfo:
23959	Rewrite "Conditions for Using Bison".
23960	Update version to 1.24.
23961
239621995-05-03  Richard Stallman  <rms@gnu.org>
23963
23964	* bison.simple: Change distribution terms.
23965
239661995-02-23  Richard Stallman  <rms@gnu.org>
23967
23968	* src/files.c: Test __VMS_POSIX as well as VMS.
23969
239701995-02-14  Jim Meyering  <meyering@gnu.org>
23971
23972	* src/bison.s1 (__yy_memcpy):
23973	Renamed from __yy_bcopy to avoid
23974	confusion.  Reverse FROM and TO arguments to be consistent with
23975	those of memcpy.
23976
239771995-02-14  Jim Meyering  <meyering@gnu.org>
23978
23979	* bison.simple (__yy_memcpy):
23980	Renamed from __yy_bcopy to avoid
23981	confusion.  Reverse FROM and TO arguments to be consistent with
23982	those of memcpy.
23983
239841994-11-10  David J. MacKenzie  <djm@gnu.org>
23985
23986	* NEWS: reformat
23987
23988	* NEWS: New file.
23989
23990	* Makefile.in (DISTFILES): Include NEWS.
23991
23992	* Makefile.in (DISTFILES):
23993	Include install-sh, not install.sh.
23994
23995	* configure.in: Update to Autoconf v2 macro names.
23996
239971994-10-05  David J. MacKenzie  <djm@gnu.org>
23998
23999	* Makefile.in: fix typo
24000
24001	* Makefile.in (prefix, exec_prefix):
24002	Let configure set them.
24003
240041994-09-28  David J. MacKenzie  <djm@gnu.org>
24005
24006	* Makefile.in: Set datadir to $(prefix)/share.
24007
240081994-09-15  Richard Stallman  <rms@gnu.org>
24009
24010	* src/bison.s1:
24011	Update copyright notice and GPL version.
24012
240131994-09-15  Richard Stallman  <rms@gnu.org>
24014
24015	* bison.simple:
24016	Update copyright notice and GPL version.
24017
240181994-07-12  Richard Stallman  <rms@gnu.org>
24019
24020	* src/reduce.c, src/reader.c:
24021	entered into RCS
24022
240231994-05-05  David J. MacKenzie  <djm@gnu.org>
24024
24025	* Makefile.in: entered into RCS
24026
240271994-03-26  Richard Stallman  <rms@gnu.org>
24028
24029	* src/bison.s1: entered into RCS
24030
240311994-03-26  Richard Stallman  <rms@gnu.org>
24032
24033	* bison.simple: entered into RCS
24034
240351994-03-25  Richard Stallman  <rms@gnu.org>
24036
24037	* src/main.c: entered into RCS
24038
240391994-03-24  Richard Stallman  <rms@gnu.org>
24040
24041	* src/conflicts.c: entered into RCS
24042
240431994-01-02  Richard Stallman  <rms@gnu.org>
24044
24045	* Makefile.in: *** empty log message ***
24046
240471993-11-21  Richard Stallman  <rms@gnu.org>
24048
24049	* src/bison.s1: *** empty log message ***
24050
240511993-11-21  Richard Stallman  <rms@gnu.org>
24052
24053	* doc/bison.texinfo: entered into RCS
24054
24055	* doc/bison.texinfo: *** empty log message ***
24056
240571993-11-21  Richard Stallman  <rms@gnu.org>
24058
24059	* bison.simple: *** empty log message ***
24060
240611993-10-25  David J. MacKenzie  <djm@gnu.org>
24062
24063	* doc/bison.texinfo: *** empty log message ***
24064
240651993-10-19  Richard Stallman  <rms@gnu.org>
24066
24067	* src/bison.s1: *** empty log message ***
24068
240691993-10-19  Richard Stallman  <rms@gnu.org>
24070
24071	* bison.simple: *** empty log message ***
24072
240731993-10-14  Richard Stallman  <rms@gnu.org>
24074
24075	* src/bison.s1: *** empty log message ***
24076
240771993-10-14  Richard Stallman  <rms@gnu.org>
24078
24079	* bison.simple: *** empty log message ***
24080
240811993-09-14  David J. MacKenzie  <djm@gnu.org>
24082
24083	* doc/bison.texinfo: *** empty log message ***
24084
240851993-09-13  Noah Friedman  <friedman@gnu.org>
24086
24087	* Makefile.in: *** empty log message ***
24088
240891993-09-10  Richard Stallman  <rms@gnu.org>
24090
24091	* src/conflicts.c: *** empty log message ***
24092
24093	* src/system.h: entered into RCS
24094
240951993-09-10  Richard Stallman  <rms@gnu.org>
24096
24097	* doc/bison.1: entered into RCS
24098
240991993-09-06  Noah Friedman  <friedman@gnu.org>
24100
24101	* src/version.c: entered into RCS
24102
241031993-09-06  Noah Friedman  <friedman@gnu.org>
24104
24105	* Makefile.in: *** empty log message ***
24106
241071993-07-30  David J. MacKenzie  <djm@gnu.org>
24108
24109	* Makefile.in: *** empty log message ***
24110
241111993-07-24  Richard Stallman  <rms@gnu.org>
24112
24113	* src/bison.s1: *** empty log message ***
24114
241151993-07-24  Richard Stallman  <rms@gnu.org>
24116
24117	* bison.simple: *** empty log message ***
24118
241191993-07-08  David J. MacKenzie  <djm@gnu.org>
24120
24121	* Makefile.in: *** empty log message ***
24122
241231993-07-04  Richard Stallman  <rms@gnu.org>
24124
24125	* src/bison.s1: *** empty log message ***
24126
241271993-07-04  Richard Stallman  <rms@gnu.org>
24128
24129	* bison.simple: *** empty log message ***
24130
241311993-06-26  David J. MacKenzie  <djm@gnu.org>
24132
24133	* src/getargs.c: entered into RCS
24134
241351993-06-26  David J. MacKenzie  <djm@gnu.org>
24136
24137	* doc/bison.texinfo: *** empty log message ***
24138
24139	* doc/bison.1: New file.
24140
241411993-06-25  Richard Stallman  <rms@gnu.org>
24142
24143	* src/getargs.c: New file.
24144
241451993-06-16  Richard Stallman  <rms@gnu.org>
24146
24147	* src/bison.s1: *** empty log message ***
24148
241491993-06-16  Richard Stallman  <rms@gnu.org>
24150
24151	* bison.simple: *** empty log message ***
24152
241531993-06-03  Richard Stallman  <rms@gnu.org>
24154
24155	* src/bison.s1: New file.
24156
241571993-06-03  Richard Stallman  <rms@gnu.org>
24158
24159	* doc/bison.texinfo: *** empty log message ***
24160
241611993-06-03  Richard Stallman  <rms@gnu.org>
24162
24163	* bison.simple: New file.
24164
241651993-05-19  Richard Stallman  <rms@gnu.org>
24166
24167	* doc/bison.texinfo: New file.
24168
241691993-05-07  Noah Friedman  <friedman@gnu.org>
24170
24171	* Makefile.in: *** empty log message ***
24172
241731993-04-28  Noah Friedman  <friedman@gnu.org>
24174
24175	* src/reader.c: *** empty log message ***
24176
241771993-04-23  Noah Friedman  <friedman@gnu.org>
24178
24179	* src/alloc.h: entered into RCS
24180
241811993-04-20  David J. MacKenzie  <djm@gnu.org>
24182
24183	* src/version.c: *** empty log message ***
24184
24185	* src/files.c, src/allocate.c:
24186	entered into RCS
24187
24188	* src/reader.c: *** empty log message ***
24189
24190	* src/lex.c: entered into RCS
24191
24192	* src/conflicts.c: New file.
24193
24194	* src/symtab.c: entered into RCS
24195
24196	* src/alloc.h: New file.
24197
24198	* src/LR0.c: entered into RCS
24199
242001993-04-18  Noah Friedman  <friedman@gnu.org>
24201
24202	* src/reader.c: New file.
24203
24204	* src/version.c: *** empty log message ***
24205
242061993-04-18  Noah Friedman  <friedman@gnu.org>
24207
24208	* Makefile.in: *** empty log message ***
24209
242101993-04-17  Noah Friedman  <friedman@gnu.org>
24211
24212	* Makefile.in: *** empty log message ***
24213
242141993-04-15  Richard Stallman  <rms@gnu.org>
24215
24216	* src/main.c, src/files.c:
24217	New file.
24218
242191993-04-15  Noah Friedman  <friedman@gnu.org>
24220
24221	* configure.in: entered into RCS
24222
24223	* configure.in: *** empty log message ***
24224
24225	* configure.in: New file.
24226
242271993-04-14  Richard Stallman  <rms@gnu.org>
24228
24229	* Makefile.in: New file.
24230
242311993-04-13  Richard Stallman  <rms@gnu.org>
24232
24233	* src/version.c: New file.
24234
242351993-03-25  Richard Stallman  <rms@gnu.org>
24236
24237	* src/output.c: entered into RCS
24238
242391992-09-25  Richard Stallman  <rms@gnu.org>
24240
24241	* configure.bat: entered into RCS
24242
242431992-06-22  Richard Stallman  <rms@gnu.org>
24244
24245	* src/vmsgetargs.c: entered into RCS
24246
242471992-06-22  Richard Stallman  <rms@gnu.org>
24248
24249	* doc/bison.rnh: entered into RCS
24250
242511992-04-20  David J. MacKenzie  <djm@gnu.org>
24252
24253	* README: entered into RCS
24254
242551992-01-22  Richard Stallman  <rms@gnu.org>
24256
24257	* src/machine.h: entered into RCS
24258
242591991-12-21  Richard Stallman  <rms@gnu.org>
24260
24261	* src/lalr.c, src/closure.c:
24262	entered into RCS
24263
242641991-12-20  Richard Stallman  <rms@gnu.org>
24265
24266	* src/state.h: entered into RCS
24267
242681991-12-18  Richard Stallman  <rms@gnu.org>
24269
24270	* src/print.c, src/nullable.c, src/derives.c:
24271	entered into RCS
24272
242731991-11-03  David J. MacKenzie  <djm@gnu.org>
24274
24275	* src/warshall.c, src/types.h, src/symtab.h, src/lex.h, src/gram.c, src/gram.h, src/files.h:
24276	entered into RCS
24277
242781988-09-09  Richard Stallman  <rms@gnu.org>
24279
24280	* src/bison.hairy: entered into RCS
24281
242821987-12-16  Richard Stallman  <rms@gnu.org>
24283
24284	* REFERENCES: entered into RCS
24285
24286
24287	-----
24288
24289	Copyright (C) 1987-1988, 1991-2012 Free Software Foundation,
24290	Inc.
24291
24292	Copying and distribution of this file, with or without
24293	modification, are permitted provided the copyright notice and this
24294	notice are preserved.
24295