2012-12-12 Akim Demaille version 2.7 * NEWS: Record release date. 2012-12-12 Akim Demaille yacc.c: scope reduction * data/yacc.c (yysyntax_error): here. 2012-12-12 Akim Demaille tests: C90 compliance * tests/synclines.at: here. 2012-12-12 Akim Demaille fix C90 compliance * data/glr.c, src/graphviz.h, src/ielr.c, src/scan-gram.l, * src/system.h, tests/actions.at, tests/glr-regression.at: Do not use // comments. Do not introduce variables after statements. Provide "main" with a return value. 2012-12-12 Akim Demaille glr.c: scope reduction * data/glr.c (yyreportSyntaxError): Reduce the scope of yysize1 (now yysz). 2012-12-12 Akim Demaille gnulib: update 2012-12-09 Akim Demaille news: prepare for forthcoming release * NEWS: Fill paragraph. Reorder. Update examples. Remove line for 2.6.90. 2012-12-09 Akim Demaille doc: explain how mid-rule actions are translated * doc/bison.texi (Actions in Mid-Rule): Mention and use named references. Split into three subsections, among which... (Mid-Rule Action Translation): this new section. 2012-12-09 Akim Demaille error: use better locations for unused midrule values On %% exp: {;} {$$;} { $$ = $1; } instead of reporting (with -fcaret -Wmidrule-value) midrule.y:2.6-8: warning: unset value: $$ [-Wmidrule-values] exp: {;} {$$;} { $$ = $1; } ^^^ midrule.y:2.6-27: warning: unused value: $2 [-Wmidrule-values] exp: {;} {$$;} { $$ = $1; } ^^^^^^^^^^^^^^^^^^^^^^ report midrule.y:2.6-8: warning: unset value: $$ exp: {;} {$$;} { $$ = $1; } ^^^ midrule.y:2.10-14: warning: unused value: $2 exp: {;} {$$;} { $$ = $1; } ^^^^^ * src/reader.c (grammar_rule_check): When warning about the value of a midrule action, use the location of the midrule action instead of the location of the rule. the location of the part of the rule. * tests/actions.at (Default %printer and %destructor for mid-rule values): Adjust expectations * tests/input.at (Unused values with default %destructor): Ditto. (AT_CHECK_UNUSED_VALUES): Ditto. And use -fcaret. 2012-12-09 Akim Demaille doc: various minor improvements and fixes * doc/figs/example.dot, doc/figs/example.y: New. * doc/bison.texi: Prefer "token" to TOKEN. Use @group where appropriate. Adjust with style changes in the output (State 0, not state 0). Fix some @ref that were missing the third argument. Fix some incorrect line numbers. Use "nonterminal", not "non-terminal". Fix overfull and underfull TeX hboxes. Put the comments in the index. Remove duplicate index entries. Fuse glossary entries where appropriate. (Understanding): Improve the continuity between sections. Use example.dot to show the whole graph. * doc/Makefile.am: Adjust. 2012-12-09 Akim Demaille tests: ignore more useless compiler warnings * tests/synclines.at (AT_SYNCLINES_COMPILE): Ignore complains about using c++ to compile C. 2012-12-09 Akim Demaille tests: be robust to C being compiled with a C++11 compiler * tests/glr-regression.at: Use YY_NULL instead of NULL. Comment changes. 2012-12-09 Akim Demaille build: beware of Clang++ not supporting POSIXLY_CORRECT * m4/c-working.m4 (BISON_LANG_COMPILER_POSIXLY_CORRECT): New. (BISON_C_COMPILER_POSIXLY_CORRECT): Use it. For consistency with C++, also define BISON_C_WORKS. * m4/cxx.m4 (BISON_CXX_COMPILER_POSIXLY_CORRECT): New. * configure.ac: Use it. * tests/atlocal.in: Get its result. Propagate properly CXX values when used to compile C. When POSIXLY_CORRECT, adjust BISON_C_WORKS and BISON_CXX_WORKS. * tests/local.at (AT_COMPILE): Use BISON_C_WORKS. 2012-12-07 Akim Demaille maint: post-release administrivia * NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update. 2012-12-07 Akim Demaille version 2.6.90 * NEWS: Record release date. 2012-12-07 Akim Demaille build: fix syntax-check error. * cfg.mk: Exclude names-refs, it includes a "double" if (end of first line, first of second line below). test.y:43.12-44.59: symbol not found in production: if if-stmt-a: IF expr[cond] THEN stmt.list[then] ELSE stmt.list[else] FI ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2012-12-07 Theophile Ranquet cpp: simplify the Flex version checking macro * src/flex-scanner,h (FLEX_VERSION): Consider YY_FLEX_SUBMINOR_VERSION defined. 2012-12-07 Theophile Ranquet news: improve the carets example and fix a typo * NEWS: Here. 2012-12-07 Theophile Ranquet cpp: improve the Flex version checking macro * src/flex-scanner.h (FLEX_VERSION): Here. 2012-12-07 Theophile Ranquet carets: improve the code * src/location.c: Remove duplicate documentations. (caret_info): Stylistic change. (location_caret): Many reworks. 2012-12-07 Akim Demaille maint: update news * NEWS: There is no 2.6.6, remove its stub. 2012-12-07 Akim Demaille build: keep -Wmissing-declarations and -Wmissing-prototypes for modern GCCs Fixes a -Werror failure of xalloc.h used in src. From Eric Blake. http://lists.gnu.org/archive/html/bug-gnulib/2012-12/msg00006.html * configure.ac: Check whether GCC pragma diagnostic push/pop works. Enable these warnings for bison if it does. Enable these warnings for the test suite anyway. 2012-12-07 Akim Demaille build: drop -Wcast-qual Suggested by Jim Meyering. http://lists.gnu.org/archive/html/bug-gnulib/2012-12/msg00017.html * configure.ac (warn_common): Remove -Wcast-qual. 2012-12-07 Akim Demaille gnulib: update 2012-12-06 Theophile Ranquet misc: pacify the Tiny C Compiler * src/graphviz.c (conclude_red): Remove a useless return. 2012-12-05 Theophile Ranquet cpp: make the check of Flex version portable This was problematic with tcc 0.9.25 * src/flex-scanner.h (FLEX_VERSION_GT): Rewrite and rename as... (FLEX_VERSION): This. 2012-12-05 Theophile Ranquet misc: require getline * bootstrap.conf: Here, used by src/location.c. * src/getargs.c (long_options): Rename --flags to --feature. 2012-12-05 Akim Demaille c++: support wide strings for file names Reported by Mark Boyall. http://lists.gnu.org/archive/html/help-bison/2011-08/msg00002.html * data/location.cc (operator<<): Be templated on the type of output stream. * tests/headers.at (Several parsers): Adjust. 2012-12-05 Theophile Ranquet doc: document carets * NEWS: Announce it. * doc/bison.texi (Bison Options): Here. 2012-12-05 Theophile Ranquet tests: enhance existing tests with carets * tests/actions.at: Unset value. * tests/conflicts.at: Rule useless due to conflicts. * tests/input.at: Missing terminator, unexpected end of file, command line redefinition of variable. * tests/named-refs.at: Many errors. * tests/reduce.at: Useless nonterminals and rules. * tests/regression.at: Large token. 2012-12-05 Theophile Ranquet errors: show carets * src/locations.c (caret_info): New, persistant information useful for... (location_caret): New, print a caret. (cleanup_caret): Release caret_info cleanly, call it... * src/main.c (main): Here. * src/complain.c (error_message): Call location_caret here. 2012-12-05 Theophile Ranquet getargs: add support for --feature/-f Introduce -fdiagnostics-show-caret * src/getargs.c (feature_flag): New global. * src/getargs.h (feature): New enum. 2012-12-04 Theophile Ranquet getargs: don't label --language/-l as experimental * NEWS: Announce it. * doc/bison.texi, src/getargs.c (usage): Here. 2012-12-03 Theophile Ranquet getargs: fix the locations of command-line input * src/getargs.c (command_line_location): Here. * tests/input.at: Adjust. 2012-12-03 Theophile Ranquet errors: indent missing action code semicolon warning Also, remove a duplicate #define. * src/scan-code.l (SC_RULE_ACTION): Here. * tests/actions.at: Adjust. 2012-12-03 Akim Demaille parser: accept #line NUM * src/scan-gram.l (scanner): Accept '#line NUM'. (handle_syncline): Adjust to the possible missing file name. 2012-12-03 Akim Demaille m4: use a safer pattern to enable/disable output Work on some other areas of Bison revealed that some macros expanded to be expanded only once were actually expanded several times. This was due to the fact that changecom was not properly restored each time, and macro names appearing in comments were then expanded. Introduce begin/end macros which are easier to match that changecom()/changecom(#). * data/bison.m4 (b4_output_begin, b4_output_end): New. * data/glr.c, data/glr.cc, data/lalr1.cc, data/lalr1.java, * data/location.cc, data/stack.hh, data/yacc.c: Use them. 2012-12-03 Akim Demaille tests: beware of gnulib's need for config.h * tests/skeletons.at, tests/torture.at: Be sure to include config.h where appropriate. 2012-11-30 Akim Demaille gnulib: update * lib/yyerror.c: Include config.h since the following stdio.h might be from gnulib. 2012-11-30 Akim Demaille yacc.c, glr.c: check and fix the display of locations In some case, negative column number could be displayed. Make YY_LOCATION_PRINT similar to bison's own implementation of locations. Since the macro is getting fat, make it a static function. Reported by Jonathan Fabrizio. * data/c.m4 (yy_location_print_define): Improve the implementation, and generate the yy_location_print_ function. Adjust YY_LOCATION_PRINT. * tests/actions.at (Location Print): New tests. 2012-11-30 Akim Demaille formatting changes * data/c.m4: Fix comments, put macros in a more natural order. Space changes (from M-x whitespace-cleanup). * src/location.c: Fix spaces. * tests/actions.at: Space changes. 2012-11-30 Akim Demaille glr.c: remove stray macro * data/glr.c (YYOPTIONAL_LOC): Remove, unused since commit 769a8ef9bcb5e14d0be9d0869f5dca20ab093930. 2012-11-29 Akim Demaille doc: minor fixes * doc/bison.texi: Use stderr for error messages. Meta-variables are usually spelled in lower case. Use @code for function names. 2012-11-29 Akim Demaille doc: improve the index * doc/bison.texi: Fix uses of "deffn" so that the arguments of the directives do not show in the index. Remove a duplicate entry for api.pure. 2012-11-29 Theophile Ranquet doc: introduce api.pure full, rearrange some examples * NEWS: Add entry. * doc/bison.texi (%define Summary): Show the old Yacc behaviour. (Parser Function): Move parse-param examples here. (Pure Calling): Remove parse-param examples. (Error Reporting): Don't show the old behavior, stick to 'full'. 2012-11-29 Theophile Ranquet yacc.c: support "%define api.pure full" This makes the interface for yyerror() pure without the need for a spurious parse_param. * data/yacc.c (b4_pure_if, b4_pure_flag): New definition, accept three states. (b4_yacc_pure_if): Rename as... (b4_yyerror_arg_loc_if): This, and use b4_pure_flag. * tests/actions.at (%define api.pure): Modernize. * test/calc.at (Simple LALR Calculator): Modernize. * tests/local.at (AT_YYERROR_ARG_LOC_IF): Adjust. 2012-11-26 Theophile Ranquet local.at: improvements * tests/local.at (AT_YYERROR_FORMALS): Make llocp const. (AT_PURE_AND_LOC_IF, AT_GLR_OR_PARAM_IF): Remove, expand... (AT_YYERROR_ARG_LOC_IF): Here, and use m4_join for readability. 2012-11-26 Akim Demaille Merge remote-tracking branch 'origin/branch-2.6' into maint * origin/branch-2.6: yacc.c: always initialize yylloc doc: one of the fixes for an ambiguous grammar was ambiguous too doc: fix the dangling else with precedence directives doc: prefer "token" to TOKEN doc: formatting changes 2012-11-23 Theophile Ranquet yacc.c: always initialize yylloc The initial location might be used if the parser starts by an empty reduction, so really ensure proper initialization of the initial location. The previous approach fails for PostgreSQL, which uses Reported by Peter Eisentraut. http://lists.gnu.org/archive/html/bug-bison/2012-11/msg00023.html With help from Théophile Ranquet. * data/yacc.c (b4_declare_scanner_communication_variables): Be sure to initialize yylloc, even when its structure is unknown. (yyparse): Simplify the call to b4_dollar_pushdef. * tests/actions.at (Initial location): Check of similar pattern as in the case of PostgreSQL. 2012-11-23 Akim Demaille scanner: issue a single error for groups of invalid characters * src/scan-gram.l: Scan groups of invalid characters together. * tests/input.at, tests/named-refs.at: Adjust. 2012-11-23 Akim Demaille tests: formatting changes * tests/named-refs.at: Here. 2012-11-23 Akim Demaille doc: one of the fixes for an ambiguous grammar was ambiguous too Reported by Аскар Сафин. http://lists.gnu.org/archive/html/bug-bison/2012-11/msg00024.html * doc/bison.texi (Reduce/Reduce): Fix the resulting ambiguity using precedence/associativity directives. 2012-11-22 Akim Demaille doc: fix the dangling else with precedence directives * doc/bison.texi (Non Operators): New node. (Shift/Reduce): Point to it. Don't promote "%expect n" too much. 2012-11-22 Akim Demaille doc: prefer "token" to TOKEN This is more readable in short examples. * doc/bison.texi (Shift/Reduce): here. Make "win" and "lose" action more alike. 2012-11-22 Akim Demaille doc: formatting changes * doc/bison.texi: Use @group. 2012-11-14 Akim Demaille scanner: use explicit "ignore" statements * src/scan-gram.l: here. 2012-11-12 Theophile Ranquet tests: close files in glr-regression * tests/glr-regression.at: Here. 2012-11-12 Theophile Ranquet xml: match DOT output and xml2dot.xsl processing Make the DOT produced by XSLT processing equivalent to the one made with the --graph option. * data/xslt/xml2dot.xsl: Stylistic changes, and add support for reductions. * doc/bison.texi (Xml): Update. * src/graphviz.c (conclude_red): Minor stylistic changes to DOT internals. (output_red): Swap enabled and disabled reductions output, for coherence with XSLT output. * src/print_graph.c (print_core): Minor stylistic change to States' output. (print_actions): Swap order of output for reductions and transitions. * tests/local.at (AT_BISON_CHECK_XML): Ignore differences in order. * tests/output.at: Adjust to changes in DOT internals. 2012-11-12 Theophile Ranquet xml: factor xslt space template * data/xslt/bison.xsl (space): New, import from... * data/xslt/xml2text.xsl: Here. 2012-11-12 Theophile Ranquet graph: fix a memory leak * src/graphviz.c (output_red): Here. 2012-11-12 Theophile Ranquet xml: documentation The XML output combined with the XSL Transformations provided in data/ are incredibly useful, they should be documented. * doc/bison.texi (Xml): New node. 2012-11-12 Theophile Ranquet output: capitalize State * src/print.c (print_state): Here. * tests/conflicts.at, tests/existing.at, tests/local.at, tests/reduce.at, tests/regression.at, tests/sets.at: Adjust. 2012-11-12 Akim Demaille maint: address syntax-check errors. * cfg.mk: Ignore the "error" call in tests/c++.at, it is not to be translated. * doc/bison.texi: Fix incorrect @pxref use. * po/POTFILES.in: Add missing file. * src/print_graph.c: Remove useless include. 2012-11-12 Akim Demaille tests: use valgrind where appropriate Reported by Théophile Ranquet. * cfg.mk (sc_at_parser_check): New. * tests/c++.at: Fix use of AT_CHECK vs. AT_PARSER_CHECK. 2012-11-12 Akim Demaille Merge remote-tracking branch 'origin/branch-2.6' into maint * origin/branch-2.6: tests: use valgrind where appropriate tests: don't expect $EGREP to support -w 2012-11-10 Akim Demaille tests: use valgrind where appropriate Reported by Théophile Ranquet. * tests/glr-regression.at: Rewrite some test cases so that AT_PARSER_CHECK, which runs valgrind, is exposed with the parser, not with "echo". * tests/local.at, tests/regression.at, tests/headers.at: Use AT_PARSER_CHECK for generated parsers. 2012-11-08 Akim Demaille tests: don't expect $EGREP to support -w Does not work on Solaris 10. Reported by Dennis Clarke. http://lists.gnu.org/archive/html/bug-bison/2012-11/msg00009.html * tests/headers.at (Several parsers): Use Perl instead. While at it, run it only once, on all the generated headers. Adjust to YY_NULL be defined in position.hh. 2012-11-08 Akim Demaille tests: more possible error compiler messages for "#error" * tests/synclines.at (AT_SYNCLINES_COMPILE): Adjust for Clang. Verified with GCC 4.0, 4.2 to 4.8, and Clang 2.9, 3.2: none skip. 2012-11-08 Akim Demaille regen 2012-11-08 Akim Demaille Merge branch 'branch-2.6' into maint * origin/branch-2.6: maint: post-release administrivia version 2.6.5 regen tests: syntax-check tests: beware of compilers that do not support POSIXLY_CORRECT gnulib: update 2012-11-07 Akim Demaille maint: post-release administrivia * NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update. 2012-11-07 Akim Demaille version 2.6.5 * NEWS: Record release date. 2012-11-07 Akim Demaille regen 2012-11-07 Akim Demaille tests: syntax-check * tests/actions.at: Fix typo. 2012-11-07 Akim Demaille tests: beware of compilers that do not support POSIXLY_CORRECT Running "maintainer-release-check" on OS X with Clang 2.9 fails, because "clang-mp-2.9 -o test -g test.c" launches "/usr/bin/dsymutil test -o test.dSYM" which fails with "error: unable to open executable '-o'". * m4/c-working.m4 (BISON_CHECK_WITH_POSIXLY_CORRECT) (BISON_C_COMPILER_POSIXLY_CORRECT): New. * configure.ac: Use the latter. * tests/atlocal.in (POSIXLY_CORRECT_IS_EXPORTED): New. * tests/local.at (AT_BISON_CHECK_WARNINGS_): Use it instead of computing its value each time. (AT_QUELL_VALGRIND): Skip tests that cannot work because of compilers that do not support POSIXLY_CORRECT. 2012-11-07 Akim Demaille gnulib: update 2012-11-06 Akim Demaille Merge branch 'branch-2.6' into maint * origin/branch-2.6: (24 commits) tests: calc: modernize the use of locations tests: remove useless location initializations lalr1.cc: always initialize yylval. tests: check that C and C++ objects can be linked together. yacc.c: also disable -Wuninitialized. glr.cc, yacc.c: initialize yylloc properly yacc.c, glr.c: a better YY_LOCATION_PRINT yacc.c: simplify initialization doc: formatting changes c++: fix position operator signatures tests: remove useless location initialization. tests: fix locations in C tests: handle %parse-param in the generated yyerror tests: simplifications grammars: fix display of nul character in error message tests: sort tests: cosmetic changes comment changes autoconf: update gnulib: update ... 2012-11-06 Akim Demaille tests: calc: modernize the use of locations * tests/calc.at: Don't initialize the location, let the parser do it. Use a $printer. Change some testing input to be easier to distinguish (instead of always "0 0" for instance). 2012-11-06 Akim Demaille tests: remove useless location initializations * tests/actions.at, tests/calc.at: here. 2012-11-06 Akim Demaille lalr1.cc: always initialize yylval. * data/lalr1.cc: here. 2012-11-06 Akim Demaille tests: check that C and C++ objects can be linked together. * tests/local.at (AT_SKIP_IF_CANNOT_LINK_C_AND_CXX): New. * tests/headers.at (Several parsers): Use it. 2012-11-06 Akim Demaille yacc.c: also disable -Wuninitialized. * data/yacc.c (YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN): For some versions of GCC, -Wmaybe-uninitialized alone does not suffice. 2012-11-06 Akim Demaille glr.cc, yacc.c: initialize yylloc properly There are several issues to address here. One is that yylloc should be initialized when possible. Another is that the push parser needs to update yypushed_loc when the user modified it. And if the parser starts by a reduction of an empty, it uses the first location on the stack, which, therefore, must also be initialized to this initial location. This is getting complex, especially since because initializing a global (impure interface) is different from initializing a local variable. To simplify, the local yylloc is not initialized during its definition. * data/c.m4 (b4_yyloc_default_define): Replace by... (b4_yyloc_default): this. Adjust dependencies. * data/glr.cc: Initialize yylloc. * data/yacc.c (b4_declare_scanner_communication_variables): Initialize yylloc during its definition. Don't define yyloc_default. (yypush_parse): The location formal is not const, as we might initialize it. (yyparse): Define yyloc_default. Use it before running the user initial action. Possibly update the first location on the stack, and the pushed location after the user initial action. * tests/actions.at (Initial locations): Check that the initial location is correct. 2012-11-06 Akim Demaille yacc.c, glr.c: a better YY_LOCATION_PRINT * data/c.m4 (b4_yy_location_print_define): New. Now issues "short" locations, e.g., "1.1" instead of "1.1-1.1". Was initially a function, but then we face "static but unused" warnings. Simpler as a macro. * tests/local.at, data/glr.c, data/yacc.c: Use it instead of duplicating. * tests/actions.at: Adjust expectations. 2012-11-06 Akim Demaille yacc.c: simplify initialization * data/yacc.c: Fuse the initializations of yyssp, yyss and the like. Remove an obsolete comment: we do initialize these initial stack members (in some cases). 2012-11-05 Akim Demaille doc: formatting changes * doc/bison.texi: In a pointer type. 2012-11-05 Akim Demaille c++: fix position operator signatures * data/location.cc (operator+=, operator-=): Remove const from return type. 2012-11-05 Akim Demaille tests: remove useless location initialization. * tests/glr-regression.at: here. glr.c does initialize yylloc. 2012-11-05 Akim Demaille tests: fix locations in C * tests/local.at (AT_YYERROR_DEFINE): Don't display the end of the location if it is not after its beginning. * tests/actions.at, tests/cxx-type.at: Adjust the expected output. 2012-11-05 Akim Demaille tests: handle %parse-param in the generated yyerror * tests/local.at (AT_PARSE_PARAMS): New. (AT_YYERROR_FORMALS, AT_YYERROR_DEFINE): Use it to add the parse-param to yyerror. * tests/calc.at, tests/regression.at: Use AT_YYERROR_DEFINE and AT_YYERROR_DECLARE, now that they handle properly the parse-params. Be sure to let AT_BISON_OPTION_PUSHDEFS now what parse-params are used. 2012-11-05 Akim Demaille tests: simplifications * tests/actions.at (Exotic Dollars): Formatting changes. Use AT_FULL_COMPILE. (AT_CHECK_PRINTER_AND_DESTRUCTOR): Remove useless initialization of @$. 2012-11-01 Akim Demaille grammars: fix display of nul character in error message Reported by Marc Mendiola. http://lists.gnu.org/archive/html/help-bison/2012-10/msg00017.html * gnulib: Update to get quote_mem. * src/scan-gram.l: Use it. * tests/input.at (Invalid inputs): Additional checks. * tests/named-refs.at: Likewise. 2012-11-01 Akim Demaille tests: sort * tests/regression.at (Invalid inputs, Invalid inputs with {}): Move to... * tests/input.at: here, for consistency. 2012-11-01 Akim Demaille tests: cosmetic changes * tests/actions.at (AT_CHECK_PRINTER_AND_DESTRUCTOR): Improve the displayed title. 2012-11-01 Akim Demaille comment changes * data/lalr1.cc: here. 2012-11-01 Akim Demaille autoconf: update There are comment changes only in the files we use. 2012-11-01 Akim Demaille gnulib: update 2012-10-28 Akim Demaille regen 2012-10-28 Akim Demaille yacc.c: initialize yylval and yylloc. When generating a pure push parser, the initialization of yylval and yylloc may not be visible to the compiler. With warnings enabled, GCC 4.3.6, 4.4.7, 4.5.4, and 4.6.3 report uninitialized uses of yylval/yylloc. Using local pragmas to disable these warnings is not supported before 4.6, and 4.6 does not support it properly. So initialize yylval and yylloc at their definition. Reported by Peter Simons. See http://lists.gnu.org/archive/html/bison-patches/2012-10/msg00133.html * data/c.m4 (b4_yyloc_default_define): New. * data/yacc.c: Use it when locations are requested. (YYLVAL_INITIALIZE): Replace by... (YY_INITIAL_VALUE): this. (yyparse): Initialize yylloc and yylval. Therefore, remove the initialization of yylloc's field. * data/glr.c: Likewise. 2012-10-26 Akim Demaille Merge branch 'branch-2.6' into maint * origin/branch-2.6: regen yacc.c: do not define location support when not using locations maint: be compilable with GCC 4.0 tests: address a warning from GCC 4.4 tests: don't use options that Clang does not support tests: restore the tests on -Werror regen parse-gram: update the Bison interface fix comment 2012-10-26 Akim Demaille doc: minor style change * doc/figs/example-reduce.txt: here. 2012-10-26 Akim Demaille maint: use gendocs's new -I option * gnulib: Update gendocs. * cfg.mk (gendocs_options_): New. 2012-10-26 Akim Demaille regen 2012-10-26 Akim Demaille yacc.c: don't use _Pragma GCC diagnostic with 4.6 Reported by Peter Simons. http://lists.gnu.org/archive/html/bug-bison/2012-10/msg00033.html * data/yacc.c (b4_declare_scanner_communication_variables): 4.7 seems fine though. 2012-10-26 Akim Demaille regen 2012-10-26 Akim Demaille yacc.c: do not define location support when not using locations * data/yacc.c (YYLLOC_DEFAULT, YYRHSLOC): Don't define when not using locations. 2012-10-26 Akim Demaille maint: be compilable with GCC 4.0 The "shadows a global declaration" warning in GCC 4.0 was a bit annoying. It does not like that a type name be used in a prototype of a function (not the implementation, just the declaration): In file included from src/LR0.c:38: src/reader.h:56: warning: declaration of 'named_ref' shadows a global declaration src/named-ref.h:35: warning: shadowed declaration is here It does not like either when a global variable name is used in a prototype. Flex 2.5.37 generates this prototype: void gram_set_debug (int debug_flag ); * src/getargs.h, src/getargs.c (debug_flag): Rename as... (debug): this. Adjust dependencies. * src/reader.h: Don't use "named_ref" as a formal argument name. 2012-10-25 Akim Demaille tests: address a warning from GCC 4.4 236. torture.at:465: testing Exploding the Stack Size with Alloca ... ../../../tests/torture.at:474: bison -o input.c input.y ../../../tests/torture.at:474: $CC $CFLAGS $CPPFLAGS $LDFLAGS -o input input.c $LIBS stderr: cc1: warnings being treated as errors input.y: In function 'main': input.y:60: error: 'status' may be used uninitialized in this function * tests/torture.at (AT_DATA_STACK_TORTURE): Initial status to avoid the previous error. 2012-10-25 Akim Demaille tests: don't use options that Clang does not support * configure.ac (WARN_CFLAGS, WARN_CXXFLAGS): Do not include options that Clang does not support. 2012-10-25 Akim Demaille tests: restore the tests on -Werror When run as /bin/sh, Bash sets the shell variable POSIXLY_CORRECT to y. The test suite checks for the envvar POSIXLY_CORRECT to turn of some tests not supported in POSIX mode. Restore these tests. Reported by the Hydra build farm, from Rob Vermaas. * tests/local.at (AT_BISON_CHECK_WARNINGS_): Check the envvar POSIXLY_CORRECT, not the shell variable. 2012-10-25 Akim Demaille regen 2012-10-25 Akim Demaille parse-gram: update the Bison interface * src/parse-gram.y (%pure-parser, %name-prefix): Replace with... (%define api.pure, %define api.prefix) * src/location.h, src/scan-gram.h: Adjust to api.prefix. 2012-10-25 Akim Demaille fix comment * data/c.m4 (b4_YYDEBUG_define): here. 2012-10-23 Akim Demaille Merge branch 'branch-2.6' into maint * origin/branch-2.6: maint: post-release administrivia version 2.6.4 regen 2.6.4: botched 2.6.3 2012-10-23 Akim Demaille maint: post-release administrivia * NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update. 2012-10-23 Akim Demaille version 2.6.4 * NEWS: Record release date. 2012-10-22 Akim Demaille regen 2012-10-22 Akim Demaille 2.6.4: botched 2.6.3 * NEWS: here. 2012-10-22 Akim Demaille Merge branch '2.6.3' into maint * 2.6.3: (22 commits) maint: post-release administrivia version 2.6.3 gnulib: update tests: check %no-lines NEWS: warnings with clang warnings: avoid warnings from clang tests: no longer disable -O compiler options yacc.c: initialize yylval in pure-parser mode skeletons: style changes tests: minor improvements tests: use $PERL instead of perl build: look for Perl in configure. tests: fix sed portability issues tests: diff -u is not portable maint: word changes lalr1.cc: fix test suite portability maint: fix an erroneous include tests: check that headers are self contained doc: add missing documentation for --report headers: move CPP guards into YY_*_INCLUDED to avoid collisions ... 2012-10-22 Akim Demaille maint: post-release administrivia * NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update. 2012-10-22 Akim Demaille version 2.6.3 * NEWS: Record release date. 2012-10-22 Akim Demaille gnulib: update 2012-10-22 Akim Demaille tests: check %no-lines * tests/synclines.at: here. 2012-10-22 Akim Demaille NEWS: warnings with clang * NEWS: here. 2012-10-22 Akim Demaille warnings: avoid warnings from clang Fix the following warning parse-gram.c:2078:14: error: equality comparison with extraneous parentheses [-Werror,-Wparentheses-equality] if (((yyn) == (-91))) ~~~~~~^~~~~~~~ parse-gram.c:2078:14: note: remove extraneous parentheses around the comparison to silence this warning if (((yyn) == (-91))) ~ ^ ~ parse-gram.c:2078:14: note: use '=' to turn this equality comparison into an assignment if (((yyn) == (-91))) ^~ = 1 error generated. and the following one: input.cc:740:1: error: function declared 'noreturn' should not return [-Werror,-Winvalid-noreturn] static void yyMemoryExhausted (yyGLRStack* yystackp) __attribute__ ((__noreturn__)); static void yyMemoryExhausted (yyGLRStack* yystackp) { YYLONGJMP (yystackp->yyexception_buffer, 2); } ^ 1 warning and 1 error generated. This is Apple clang version 3.1 (tags/Apple/clang-318.0.61). * data/c.m4 (b4_table_value_equals): Use (!!(A == B)) instead of (A == B) to avoid this warning. Any reasonable compiler should generate the same code. * src/uniqstr.h (UNIQSTR_EQ): Likewise. * data/glr.c (LONGJMP): abort after longjmp to pacify clang. 2012-10-22 Akim Demaille tests: no longer disable -O compiler options Tests are running without -O since f377f69fec28013c79db4efe12bbb9d48987fb2c because some warnings (about yylval not being initialized) show only when GCC is given -O2. The previous patch fixes the warnings. Run the test suite with compiler options unmodified. * tests/atlocal.in (O0CFLAGS, O0CXXFLAGS): Remove, use CFLAGS and CXXFLAGS. 2012-10-22 Paul Eggert yacc.c: initialize yylval in pure-parser mode See http://lists.gnu.org/archive/html/bison-patches/2012-08/msg00024.html (spreading over September and October). * data/yacc.c (YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN) (YY_IGNORE_MAYBE_UNINITIALIZED_END, YYLVAL_INITIALIZE): New macros. Use them to suppress an unwanted GCC diagnostic. 2012-10-22 Akim Demaille skeletons: style changes * data/yacc.c, data/glr.c: Prefer Title case for (CPP) macro arguments. 2012-10-22 Akim Demaille tests: minor improvements * tests/c++.at: Space changes. Use AT_YYERROR_DEFINE. * tests/local.at (AT_YYERROR_DEFINE): Issue errors on unknown languages. 2012-10-22 Akim Demaille tests: use $PERL instead of perl * tests/atlocal.in (PERL): New. Sort. * tests/calc.at, tests/input.at, tests/local.at, tests/regression.at, * tests/skeletons.at, tests/synclines.at, tests/torture.at: here. 2012-10-22 Akim Demaille build: look for Perl in configure. Bison uses "/usr/bin/perl" or "perl" in several places, and it does not appear to be a problem. But, at least to make it simpler to change PERL on the make command line, check for perl in configure. * configure.ac (PERL): New. * doc/Doxyfile.in, doc/Makefile.am, tests/bison.in: Use it. 2012-10-22 Akim Demaille tests: fix sed portability issues Reported by Didier Godefroy, . * tests/calc.at (AT_CHECK_SPACES): Use Perl. 2012-10-22 Akim Demaille tests: diff -u is not portable Reported by Didier Godefroy . * tests/existing.at (AT_LALR1_DIFF_CHECK): Skip if diff -u does not work. 2012-10-22 Akim Demaille maint: word changes * README-hacking (Typical errors): Improve wording. 2012-10-22 Akim Demaille lalr1.cc: fix test suite portability Reported by Rob Vermaas' Hydra build farm on x86_64-darwin 10.2.0 with G++ 4.6.3. * tests/headers.at (Several parsers): Include AT_DATA_SOURCE_PROLOGUE in the files to compile. * data/location.cc: Do not include twice string and iostream (once by position.hh, and then by location.hh). * README-hacking (Typical errors): Some hints for other maintainers. 2012-10-22 Theophile Ranquet maint: fix an erroneous include This fixes test 130 (Several parsers). * data/location.cc: Include rather than since we really need << on strings for instance. * NEWS: Document this. 2012-10-22 Akim Demaille tests: check that headers are self contained Reported by Alexandre Duret-Lutz. * tests/headers.at (Several parsers): here. 2012-10-22 Akim Demaille doc: add missing documentation for --report * doc/bison.texi (Bison Options): Document --report's "solved", "all", and "none". 2012-10-22 Akim Demaille headers: move CPP guards into YY_*_INCLUDED to avoid collisions See . * data/c.m4 (b4_cpp_guard): Prepend YY_ and append _INCLUDED. * tests/headers.at: Adjust. * NEWS, doc/bison.texi: Document. 2012-10-22 Akim Demaille minor changes. * NEWS: Word changes. * doc/bison.texi: Spell check. Fix minor issues. * tests/headers.at: Comment and formatting changes. 2012-10-22 Akim Demaille gnulib: update 2012-10-19 Akim Demaille gnulib: update 2012-10-19 Akim Demaille xml: slight improvement of the DOT output This was completely forgotten... Nothing about XML is actually documented... * data/xslt/xml2dot.xsl: Use boxes, and Courier font. 2012-10-19 Akim Demaille maint: check for dot before using it * configure.ac: here. * doc/Makefile.am: Use $(DOT). Ship the generated files, to spare the user the need for Graphviz. 2012-10-18 Theophile Ranquet graphs: documentation Note that 'make web-manual' fails. * NEWS: Document these changes. * doc/Makefile.am: Adjust to generate example files. * doc/bison.texi: Add a Graphviz section after "Understanding::", the section describing the .output file, because these are similar. * doc/figs/example-reduce.dot, doc/figs/example-reduce.txt, doc/figs/example-shift.dot, doc/figs/example-shift.txt: New, minimal examples to illustrate the documentation. 2012-10-18 Theophile Ranquet graphs: add tests, introducing -k graph * tests/output.at (AT_TEST): New. Use it to add 6 --graph tests. 2012-10-18 Theophile Ranquet graphs: change the output format of the rules Use something similar to the report file. * src/print_graph.c (print_lhs): New, obstack equivalent of rule_lhs_print. (print_core): Use here. 2012-10-18 Theophile Ranquet graphs: style changes * src/graphviz.c (start_graph): Use courier font. (conclude_red): Use commas to separate attributes. Show the acceptation as a special reduction, with a blue color and an "Acc" label. Show the lookahead tokens between square brackets. (output_red): No longer label default reductions. * src/print_graph.c (print_core): Refactor spacing, and print an additional space between a rule's rhs and its lookahead tokens. Also, capitalize "State". (print_actions): Style, move a declaration. 2012-10-18 Theophile Ranquet graphs: address an issue with R/R conflicts All disabled reductions should now be shown as such. * src/graphviz.c (output_red): Here. (conclude_red): New. 2012-10-16 Akim Demaille java: fixes * data/java.m4: Remove stray M4 characters. 2012-10-12 Akim Demaille java: use api.location.type and api.position.type * data/java.m4: here. * NEWS, doc/bison.texi, tests/java.at: Adjust. 2012-10-12 Akim Demaille tests: check %no-lines * tests/synclines.at: here. 2012-10-12 Akim Demaille tests: minor simplification * tests/headers.at (Several parsers): Use *.y even for C++. 2012-10-11 Akim Demaille graphs: stylistic changes. * src/graphviz.c (output_red): Comment and formatting changes. 2012-10-11 Theophile Ranquet graphs: minor style changes * src/graphviz.c (output_red): Fix C90 issues. Reduce variable scopes. 2012-10-11 Theophile Ranquet graphs: show reductions * src/graphviz.c (output_red): New, show reductions on the graph. (no_reduce_bitset_init): New, initialize a bitset. (print_token): New, print a lookahead token. (escape): New, print "foo" as \"foo\" because Dot doesn't like quotes within a label. * src/graphviz.h : Adjust. * src/print_graph.c (print_actions): Call output_red here. 2012-10-11 Theophile Ranquet graphs: style: prefix state number with "state" * src/print_graph.c (print_core): Here. 2012-10-11 Theophile Ranquet graphs: style: use left justification for states The label text of nodes is centered "by default" (by the use of '\n' as a line feed). This gives bad readability to the grammar rules shown in state nodes, a left justification is much nicer. This is done by using '\l' as the line feed. In order to allow \l in the DOT file, changes to the quoting system seem necessary. * src/print_graph.c (print_core): Escape tokens here, instead of... * src/graphviz.c (output_node): Here... (escape): Using this, new. 2012-10-11 Theophile Ranquet graphs: style: prefix rules and change shapes * src/graphviz.c (start_graph): Use box rather than ellipsis. * src/print_graph.c (print_core): Prefix rules with their number. 2012-10-11 Theophile Ranquet obstack: import obstack_finish0 from master * src/system.h (obstack_finish0): New. 2012-10-09 Akim Demaille c++: api.location.type This feature was introduced in 95a2de5695670ae0df98cb3c42141cad549f0204 (which is part of 2.5), but not documented. Give it a proper name, and make it public. * data/c++.m4, data/lalr1.cc, data/glr.cc, data/java.m4: Use api.location.type instead of location_type. * src/muscle-tab.c (muscle_percent_variable_update): Map the latter to the former. * tests/local.at: Adjust. * tests/calc.at: Use api.location.type. Leave tests/java.at with location_type, at least for the time being, to cover both names. * doc/bison.texi: Document api.location.type. (User Defined Location Type): New. * NEWS: Update. 2012-10-09 Akim Demaille muscles: a function for backward compatibility Based on commit 171ad99d6421935a278656be6dc7161591835d00 from master. * src/muscle-tab.c (muscle_percent_variable_update): New. (muscle_percent_define_insert): Use it. Define the variables with their initial value. 2012-10-09 Akim Demaille maint: more macros * src/output.c (ARRAY_CARDINALITY): Move to... * src/system.h: here. (STREQ, STRNEQ): new. 2012-10-08 Akim Demaille NEWS: warnings with clang * NEWS: here. 2012-10-08 Akim Demaille warnings: avoid warnings from clang Fix the following warning parse-gram.c:2078:14: error: equality comparison with extraneous parentheses [-Werror,-Wparentheses-equality] if (((yyn) == (-91))) ~~~~~~^~~~~~~~ parse-gram.c:2078:14: note: remove extraneous parentheses around the comparison to silence this warning if (((yyn) == (-91))) ~ ^ ~ parse-gram.c:2078:14: note: use '=' to turn this equality comparison into an assignment if (((yyn) == (-91))) ^~ = 1 error generated. and the following one: input.cc:740:1: error: function declared 'noreturn' should not return [-Werror,-Winvalid-noreturn] static void yyMemoryExhausted (yyGLRStack* yystackp) __attribute__ ((__noreturn__)); static void yyMemoryExhausted (yyGLRStack* yystackp) { YYLONGJMP (yystackp->yyexception_buffer, 2); } ^ 1 warning and 1 error generated. This is Apple clang version 3.1 (tags/Apple/clang-318.0.61). * data/c.m4 (b4_table_value_equals): Use (!!(A == B)) instead of (A == B) to avoid this warning. Any reasonable compiler should generate the same code. * src/uniqstr.h (UNIQSTR_EQ): Likewise. * data/glr.c (LONGJMP): abort after longjmp to pacify clang. 2012-10-08 Akim Demaille tests: no longer disable -O compiler options Tests are running without -O since f377f69fec28013c79db4efe12bbb9d48987fb2c because some warnings (about yylval not being initialized) show only when GCC is given -O2. The previous patch fixes the warnings. Run the test suite with compiler options unmodified. * tests/atlocal.in (O0CFLAGS, O0CXXFLAGS): Remove, use CFLAGS and CXXFLAGS. 2012-10-08 Paul Eggert yacc.c: initialize yylval in pure-parser mode See http://lists.gnu.org/archive/html/bison-patches/2012-08/msg00024.html (spreading over September and October). * data/yacc.c (YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN) (YY_IGNORE_MAYBE_UNINITIALIZED_END, YYLVAL_INITIALIZE): New macros. Use them to suppress an unwanted GCC diagnostic. 2012-10-08 Akim Demaille skeletons: style changes * data/yacc.c, data/glr.c: Prefer Title case for (CPP) macro arguments. 2012-10-06 Akim Demaille lalr1.cc: document exception safety * NEWS: here. * doc/bison.texi (Destructor Decl, C++ Parser Interface): and there. 2012-10-06 Akim Demaille lalr1.cc: check exception safety of error handling * tests/c++.at (Exception safety): Don't use swap here, it is useless. Cover more test cases: yyerror, YYERROR, YYABORT, and error recovery. (Object): Instead of just keeping a counter of instances, keep a list of them. 2012-10-06 Akim Demaille lalr1.cc: check (and fix) %printer exception safety * tests/c++.at (Exception safety): Let the parser support the --debug option. On 'p', throw an exception from the %printer. * data/lalr1.cc (yyparse): Do not display the values we discard, as it uses %printer, which might have thrown the exception. 2012-10-06 Akim Demaille lalr1.cc: check (and fix) %initial-action exception safety * data/lalr1.cc: Check size > 1, rather than size != 1, when cleaning the stack, as at the beginning, size is 0. * tests/c++.at (Exception safety): Check exception safety in %initial-action. 2012-10-06 Akim Demaille lalr1.cc: fix exception safety lalr1.cc does not reclaim its memory when ended by an exception. Reported by Oleksii Taran: http://lists.gnu.org/archive/html/help-bison/2012-09/msg00000.html * data/lalr1.cc (yyparse): Protect the whole yyparse by a try-catch block that cleans the stack and the lookahead. 2012-10-06 Akim Demaille lalr1.cc: check exception safety. * tests/c++.at (Exception safety): New. 2012-10-06 Akim Demaille lalr1.cc: indentation fixes. * data/lalr1.cc (yyparse): here. Untabify a block of code. 2012-10-06 Akim Demaille lalr1.cc: don't leave macros define to nothing * data/lalr1.cc (YY_SYMBOL_PRINT, YY_REDUCE_PRINT, YY_STACK_PRINT): Define to something so that, for instance, "if (foo) YY_SYMBOL_PRINT" is valid even when !YYDEBUG. 2012-10-06 Akim Demaille tests: minor improvements * tests/c++.at: Space changes. Use AT_YYERROR_DEFINE. * tests/local.at (AT_YYERROR_DEFINE): Issue errors on unknown languages. 2012-10-05 Akim Demaille tests: use $PERL instead of perl * tests/atlocal.in (PERL): New. Sort. * tests/calc.at, tests/input.at, tests/local.at, tests/regression.at, * tests/skeletons.at, tests/synclines.at, tests/torture.at: here. 2012-10-05 Akim Demaille build: look for Perl in configure. Bison uses "/usr/bin/perl" or "perl" in several places, and it does not appear to be a problem. But, at least to make it simpler to change PERL on the make command line, check for perl in configure. * configure.ac (PERL): New. * doc/Doxyfile.in, doc/Makefile.am, tests/bison.in: Use it. 2012-10-05 Akim Demaille tests: fix sed portability issues Reported by Didier Godefroy, . * tests/calc.at (AT_CHECK_SPACES): Use Perl. 2012-10-05 Akim Demaille tests: diff -u is not portable Reported by Didier Godefroy . * tests/existing.at (AT_LALR1_DIFF_CHECK): Skip if diff -u does not work. 2012-10-04 Akim Demaille maint: word changes * README-hacking (Typical errors): Improve wording. 2012-10-04 Akim Demaille lalr1.cc: fix test suite portability Reported by Rob Vermaas' Hydra build farm on x86_64-darwin 10.2.0 with G++ 4.6.3. * tests/headers.at (Several parsers): Include AT_DATA_SOURCE_PROLOGUE in the files to compile. * data/location.cc: Do not include twice string and iostream (once by position.hh, and then by location.hh). * README-hacking (Typical errors): Some hints for other maintainers. 2012-10-03 Theophile Ranquet maint: fix an erroneous include This fixes test 130 (Several parsers). * data/location.cc: Include rather than since we really need << on strings for instance. * NEWS: Document this. 2012-10-03 Akim Demaille tests: check that headers are self contained Reported by Alexandre Duret-Lutz. * tests/headers.at (Several parsers): here. 2012-10-03 Akim Demaille doc: add missing documentation for --report * doc/bison.texi (Bison Options): Document --report's "solved", "all", and "none". 2012-10-01 Akim Demaille headers: move CPP guards into YY_*_INCLUDED to avoid collisions See . * data/c.m4 (b4_cpp_guard): Prepend YY_ and append _INCLUDED. * tests/headers.at: Adjust. * NEWS, doc/bison.texi: Document. 2012-10-01 Akim Demaille minor changes. * NEWS: Word changes. * doc/bison.texi: Spell check. Fix minor issues. * tests/headers.at: Comment and formatting changes. 2012-09-28 Akim Demaille gnulib: update 2012-09-28 Theophile Ranquet errors: indent "user token number redeclaration" context This is the continuation of the work on the readability of errors context. * src/symtab.c (user_token_number_redeclaration): Use complain_at_indent to output with increased indentation level. * tests/input:at: Apply this change. 2012-09-26 Theophile Ranquet warnings: introduce -Wdeprecated in the usage info The deprecated warning, introduced some time ago, was not displayed in the usage message. This patch addresses the issue. * src/getargs.c (usage): Insert here. 2012-09-26 Theophile Ranquet errors: prefix the output with "error: " This improves readability. This is also what gcc does. * NEWS: Document this change. * src/complain.c (complain_at): Prefix all errors with "error: ". (complain_at_indent, warn_at_indent): Do not prefix the context information of errors, which are basically just indented errors. * tests/conflicts.at, tests/glr-regression.at, tests/input.at, tests/named-refs.at, tests/output.at, tests/push.at, tests/regression.at, tests/skeletons.at: Apply this change. 2012-09-26 Theophile Ranquet errors: indent "invalid value for %define" context This is the continuation of the work on the readability of errors context. For example, what used to be: input.y:1.9-29: invalid value for %define variable 'foo' : 'bar' input.y:1.9-29: accepted value: 'most' is now: input.y:1.9-29: invalid value for %define variable 'foo' : 'bar' input.y:1.9-29: accepted value: 'most' * src/muscle-tab.c (muscle_percent_define_check_values): Use complain_at_indent to output with increased indentation level. * tests/input:at: Apply this change. 2012-09-26 Theophile Ranquet errors: indent "%define var" redefinition context This is the continuation of the work on the readability of errors context. For example, what used to be: input.y:2.9-11: %define variable 'var' redefined input.y:1.9-11: previous definition is now: input.y:2.9-11: %define variable 'var' redefined input.y:1.9-11: previous definition * src/muscle-tab.c (muscle_percent_define_insert): Use complain_at_indent to output with increased indentation level. * tests/input.at: Apply this change. 2012-09-26 Theophile Ranquet errors: indent "symbol redeclaration" context This is the continuation of the work on the readability of errors context. For example, what used to be: input.y:5.10-24: %printer redeclaration for input.y:3.11-25: previous declaration is now: input.y:5.10-24: %printer redeclaration for input.y:3.11-25: previous declaration * NEWS: Document this change. * src/symtab.c (symbol_redeclaration, semantic_type_redeclaration, user_token_number_redeclaration, default_tagged_destructor_set, default_tagless_destructor_set, default_tagged_printer_set, default_tagless_printer_set): Use complain_at_indent to output with increased indentation level. * tests/input.at: Apply this change. 2012-09-26 Theophile Ranquet errors: indent "result type clash" error context This used to be the format of the error report: input.y:6.5-10: result type clash on merge function 'merge': [...] input.y:2.4-9: previous declaration In order to distinguish the actual error from the context provided, we rather this new output: input.y:6.5-10: result type clash on merge function 'merge': [...] input.y:2.4-9: previous declaration Another patch will introduce an "error: " prefix to all non-indented lines, giving yet better readability to the reports. * src/complain.h (SUB_INDENT): Move to here. * src/reader.c (record_merge_function_type): Use complain_at_indent to output with increased indentation level. * src/scan-code.l (SUB_INDENT): Remove from here. * tests/glr-regression.at: Apply this change. 2012-09-25 Akim Demaille regen 2012-09-25 Akim Demaille yacc: fix handling of CPP guards when no header is generated When no header was to be generated, Bison would issue: /* In a future release of Bison, this section will be replaced by #include "". */ #ifndef YY_ # define YY_ It now properly generates nothing. * data/c.m4 (b4_cpp_guard_open, b4_cpp_guard_close): Issue nothing when the file name is empty. * data/yacc.c: Do not generate the above comment when there is no header to generate. * NEWS: Update. 2012-09-25 Akim Demaille gnulib: update 2012-09-04 Akim Demaille maint: remove useless file * externals/bootstrap.cfg: Remove. This file was used by a specific build system. It was added to the master repository by accident. 2012-09-04 Akim Demaille update files to ignore * doc/.gitignore: Don't ignore split info files as we don't split our info file. See . 2012-09-04 Akim Demaille remove useless include * src/system.h: Don't include sys/types.h. Reported by Eric Blake, . (FUNCTION_PRINT): Remove, unused. 2012-09-03 Jim Meyering use locale-indep. c_is* functions for parsing, not isspace, isprint etc * src/parse-gram.y: Include "c-ctype.h". (add_param): Parse with c_isspace, not isspace. * src/parse-gram.c: Likewise. * src/scan-gram.l: Include c-ctype.h, not ctype.h. (SC_ESCAPED_STRING,SC_ESCAPED_CHARACTER): Use c_isspace and c_isprint, not ctype.h's locale-dependent functions. 2012-09-03 Akim Demaille gnulib: update 2012-09-03 Akim Demaille --help: include a place to report translation issues http://lists.gnu.org/archive/html/bug-bison/2012-08/msg00007.html shows that it is useful to help users report translation issues. While at it, include other informative bits that the coreutils shows. * src/getargs.c (usage): Report more URLs where the user can refer to. Mostly copied/pasted from coreutils' emit_ancillary_info function. 2012-08-31 Akim Demaille tests: style changes * tests/torture.at (AT_DATA_STACK_TORTURE): M4 style changes to improve readability. Fix an assertion which, because of a <= instead of ==, did not check new_status as visibly meant. (get_args): New. 2012-08-31 Akim Demaille tests: fix push-pull test * tests/torture.at: %push-pull-parser is no longer supported. 2012-08-31 Akim Demaille yacc.c: style changes * data/yacc.c: (yytoken): Define with initial value. 2012-08-03 Akim Demaille maint: post-release administrivia * NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update. 2012-08-03 Akim Demaille version 2.6.2 * NEWS: Record release date. 2012-08-02 Akim Demaille NEWS: update. * NEWS: Catch up with the other changes from 2.6.1. 2012-08-02 Akim Demaille yacc: remove trailing end of line at end of file There are still spurious spaces at the end of some lines. But this is addressed in the master branch, and I am reluctant to try to backport this. * data/yacc.c, data/glr.c, data/lalr1.cc, data/glr.cc: here. * tests/calc.at (AT_CHECK_SPACES): New. Use it. Be sure not to introduce trailing empty lines in the *.y files. * NEWS: Doc it. * cfg.mk (syntax-check): Remove the exception. 2012-08-02 Akim Demaille thanks: fix a contributor name * THANKS: On his request. 2012-08-01 Akim Demaille gnulib: update 2012-08-01 Akim Demaille tests: synch line -> syncline, for consistency * tests/synclines.at: Do it, as "syncline" is used consistently everywhere else in Bison. 2012-08-01 Akim Demaille tests: synclines: style changes * tests/synclines.at (AT_TEST_SYNCLINE): Rename as... (AT_TEST): this. Use pushdef/popdef. Formatting changes. Use '+' instead of '*' where appropriate. 2012-08-01 Akim Demaille tests: synclines: fix perl invocation Reported by Summum Bonum. * tests/synclines.at: Fix Perl invocation: its -f is not like sed's. 2012-08-01 Akim Demaille regen 2012-08-01 Akim Demaille c++: trailing end-of-lines in %parse-param * src/parse-gram.y (add_param): No only skip ' ' and '\t', skip all leading and trailing spaces. * tests/regression.at (Lex and parse params): Check it. * NEWS: Document it. 2012-08-01 Akim Demaille tests: simplify * tests/regression.at: Remove useless compilations: AT_FULL_COMPILE includes the compilation by bison. 2012-07-31 Akim Demaille use obstack_printf This is not just nicer, it is also much safer, since we were using sprintf... * bootstrap.conf: Require it. * src/system.h (obstack_fgrow1, obstack_fgrow2, obstack_fgrow3) (obstack_fgrow4): Remove. Adjust dependencies. 2012-07-30 Akim Demaille scanner: restore a missing start condition $ flex src/scan-skel.l src/scan-skel.l:145: multiple <> rules for start condition SC_AT_DIRECTIVE_ARGS src/scan-skel.l:145: multiple <> rules for start condition SC_AT_DIRECTIVE_SKIP_WS This is warning, and it seems there are no means to make it an error. * src/scan-skel.l: Restore the start-condition INITIAL for an <> clause. 2012-07-30 Akim Demaille gnulib: update 2012-07-30 Akim Demaille maint: post-release administrivia * NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update. 2012-07-30 Akim Demaille version 2.6.1 * NEWS: Record release date. 2012-07-30 Akim Demaille gnulib: update 2012-07-27 Akim Demaille maint: fix some syntax-check issues * cfg.mk: Nuke the following warnings which are confused by our text reports (that state that the error token is number 256). prohibit_magic_number_exit ../../doc/bison.texi:8170:error (256) ../../tests/conflicts.at:570:error (256) ../../tests/conflicts.at:673:error (256) ../../tests/conflicts.at:811:error (256) ../../tests/conflicts.at:1154:error (256) ../../tests/regression.at:281:error (256) ../../tests/regression.at:582:error (256) maint.mk: use EXIT_* values rather than magic number 2012-07-27 Akim Demaille tests: do not depend on __cplusplus to decide for C++ or C output Since we do support compiling C code with a C++ compiler. * tests/actions.at (Qualified $$ in actions): Use AT_SKEL_CC_IF. 2012-07-27 Akim Demaille regen 2012-07-27 Akim Demaille synclines: remove spurious empty line * data/bison.m4 (b4_syncline): Do not start with an empty line. 2012-07-27 Akim Demaille also support $$ in the %initial-action scan-code.l is already passing argument to b4_dollar_dollar for the initial acton, but its definition (of b4_dollar_dollar) does not use this argument. Generalize this definition, and use it for the %initial-action too. * data/c.m4 (b4_dollar_dollar_, b4_dollar_pushdef, b4_dollar_popdef): Instead of expecting a pointer, require a value, and use ".". Since they are now generic enough, move to... * data/c-like.m4: this new file. * data/c.m4, data/java.m4: Load it. * data/glr.c, data/lalr1.cc, data/lalr1.java, data/yacc.c: Use b4_dollar_pushdef for the %initial-action. * tests/actions.at: Check that. * data/Makefile.am: Adjust. * NEWS, doc/bison.texi: Document. 2012-07-27 Akim Demaille skeletons: b4_dollar_pushdef and popdef to simpify complex definitions M4 is really making it uselessly hard to define macros that define macros. * data/c.m4 (b4_dollar_pushdef, b4_dollar_popdef): New. Use it. 2012-07-27 Akim Demaille regen 2012-07-27 Akim Demaille printer/destructor: translate only once Currently "%printer {...} a b c d e f" translates the {...} six times. Not only is this bad for time and space, it also issues six times the same warnings. * src/symlist.h, src/symlist.c (symbol_list_destructor_set) (symbol_list_printer_set): Take the action as code_props instead of const char *. * src/parse-gram.y: Translate these actions here. * src/scan-code.h: Comment change. * tests/input.at: Check that warnings are issued only once. 2012-07-27 Akim Demaille factor the handling of m4 escaping The conversion from @ to @@ and so forth is coded is too many different places. Factor, a bit. * src/scan-code.l: Instead of duplicating the logic of obstack_escape, use it. It sure is less efficient, but the cost is negligible. This allows to factor rules that are alike. And to factor some start-condition clauses. * tests/input.at (Stray $ or @): New. * NEWS: Document it. 2012-07-27 Akim Demaille news: schedule the removal of the ";" hack scan-code.l is significantly more complex because of this. * NEWS: Doc it. 2012-07-27 Akim Demaille style changes in the scanners * src/scan-code.l, src/scan-skel.l: Use a more traditional indentation style for start-conditions. Prefer "continue" to a comment, for empty actions. Strip useless {}. Remove useless start-condition clauses. 2012-07-26 Akim Demaille regen 2012-07-26 Akim Demaille support $$ in printers and destructors * src/scan-code.l (SC_SYMBOL_ACTION): Accept $$, not just $$. * data/c.m4 (b4_dollar_dollar_): New. (b4_symbol_actions): Let b4_dollar_dollar use b4_dollar_dollar_. * NEWS, doc/bison.texi: Document it. * tests/actions.at: Check this for C and C++. 2012-07-26 Akim Demaille scan-code: factor the handling of the type in $$ * src/scan-code.l (fetch_type_name): New. (handle_action_dollar): Use it. (gt_ptr): Remove, useless. 2012-07-26 Akim Demaille muscles: fix another occurrence of unescaped type name * src/output.c (quoted_output): Split into... (quoted_output, string_output): these. Use the former when outputting a type_name. * tests/input.at: Check this case. * src/symtab.h: Comment changes. 2012-07-26 Akim Demaille glr.cc: fix the handling of yydebug * data/glr.cc (yydebug_): Remove, unused. (set_debug_level, debug_level): Work on yydebug instead. * doc/bison.texi, NEWS: Document this. 2012-07-26 Akim Demaille gnulib: update 2012-07-26 Akim Demaille formatting changes * src/symtab.h: here. 2012-07-26 Akim Demaille tests: fix an assertion * tests/local.at (AT_YYLEX_DEFINE): Be sure to check the array against its length, not its size in bytes. 2012-07-26 Akim Demaille tests: adjust to GCC 4.8, which displays caret errors With GCC 4.8, the tests on synclines are skipped. Transform input.y:1:2: error: #error "1" #error "1" ^ into input.y:1: #error "1" * tests/synclines.at (AT_SYNCLINES_COMPILE): Do it, using Perl instead of sed. 2012-07-26 Akim Demaille be sure to properly escape type names * src/scan-code.l: Use obstack_quote when passing type_name to m4. * tests/input.at (Code injection): New. * NEWS: Document it. Thanks to Paul Eggert for the wording. 2012-07-26 Akim Demaille obstack_quote: escape and quote for M4 * src/system.h (obstack_quote): New. * src/muscle-tab.c: Use it instead of obstack_escape where applicable. * src/scan-code.l: Since obstack_quote supports NULL, leave type_name as NULL instead of defaulting to "". 2012-07-26 Akim Demaille muscles: shuffle responsabilities * src/muscle-tab.c (muscle_boundary_grow): Be in charge of quotation, instead of leaving this to the caller. 2012-07-26 Akim Demaille muscles: make private functions static * src/muscle-tab.h, src/muscle-tab.c (muscle_boundary_grow) (muscle_location_grow): Now static. 2012-07-26 Akim Demaille muscles: rename private functions/macros * src/muscle-tab.c (MUSCLE_COMMON_DECODE, muscle_string_decode) (muscle_location_decode): Not related to muscles, rename as... (COMMON_DECODE, string_decode, location_decode): these. 2012-07-26 Akim Demaille obstack_escape: escape M4 characters * src/muscle-tab.h (MUSCLE_OBSTACK_SGROW): This is not related to muscles, so move to, and rename as... * src/system.h (obstack_escape): this. Adjust dependencies. 2012-07-26 Akim Demaille remove dead macro * src/system.h (DEFAULT_TMPDIR): Remove, unused. 2012-07-26 Akim Demaille maint: style changes * src/scan-code.l: Remove useless braces. Formatting changes. Prefer NULL to 0. * src/muscle-tab.c, src/system.h: Formatting changes. 2012-07-24 Akim Demaille doc: avoid problems with case insensitive file systems makeinfo --html generates index.html, and the node "Index" will result in Index.html. On case insensitive file systems, such as on Mac OS X by default, this results in a single, invalid, file (Texinfo 4.13). See http://lists.gnu.org/archive/html/bug-texinfo/2012-07/msg00032.html * doc/bison.texi (Index): Rename as... (Index of Terms): this. 2012-07-24 Stefano Lattarini (tiny change) configure: fix botched quoting * configure.ac: In the AC_SUBST call on 'VALGRIND_PREBISON'. Without this change, when running ./configure, I see: ... checking for valgrind... valgrind ./configure: line 35221: -q: command not found checking for Java compiler... gcj -C -fsource=1.3 -ftarget=1.4 ... 2012-07-20 Akim Demaille news: fix typo. * NEWS: here. Reported by Ben Pfaff. 2012-07-19 Akim Demaille maint: update gnu-web-doc-update. * gnulib: here. 2012-07-19 Akim Demaille maint: post-release administrivia * NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update. 2012-07-19 Akim Demaille version 2.6 * NEWS: Record release date. 2012-07-19 Akim Demaille maint: prepare for release 2.6 * NEWS: here. 2012-07-18 Akim Demaille maint: post-release administrivia * NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update. 2012-07-18 Akim Demaille version 2.5.91 * NEWS: Record release date. 2012-07-18 Akim Demaille maint: prepare NEWS. 2012-07-18 Akim Demaille maint: fix spaces. * build-aux/Makefile.am: here. 2012-07-18 Akim Demaille tests: adjust to case where the C compiler is actually a C++ compiler * tests/atlocal.in (CC_IS_CXX): New. * tests/headers.at (Several parsers): Use it. 2012-07-18 Akim Demaille tests: fix dependencies * tests/Makefile.am: we need atconfig and atlocal to be up to date when calling testsuite. 2012-07-18 Akim Demaille doc: fix Texinfo command * doc/bison.texi: In parens, use @pxref. 2012-07-18 Akim Demaille maint: Valgrind on OS X. * configure.ac (VALGRIND_PREBISON): New. * tests/Makefile.am (maintainer-check-valgrind): Use it. * etc/darwin11.4.0.supp: New. * configure.ac, etc/Makefile.am: Use it. * configure.ac: Disable Valgrind on Mac OS X. * README-hacking: Explain why. 2012-07-17 Akim Demaille tests: be sure that backups are safe. * tests/local.at (at_save_special_files): here. 2012-07-17 Akim Demaille maint: dead comment. * etc/README: here. 2012-07-17 Akim Demaille tests: refactor for legibility. * tests/local.at (AT_BISON_CHECK_WARNINGS, AT_BISON_CHECK_WARNINGS_): New. 2012-07-17 Akim Demaille tests: refactor the bison invocations. * tests/local.at (m4_null_if, AT_BISON_CHECK_): New. 2012-07-17 Akim Demaille maint: fix syntax-check ignore patterns. * cfg.mk: here. 2012-07-17 Akim Demaille gnulib: update 2012-07-16 Akim Demaille gnulib: update. * gnulib: Update so that gitlog-to-changelog support --srcdir. * Makefile.am: Use it. 2012-07-10 Akim Demaille gnulib: update * bootstrap, build-aux/.gitignore, gnulib, m4/.gitignore: update. 2012-07-06 Akim Demaille maint: update release instructions * README-hacking: here. 2012-07-05 Akim Demaille maint: post-release administrivia * NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update. 2012-07-05 Akim Demaille version 2.5.90 * NEWS: Record release date. 2012-07-05 Akim Demaille build: fix gen-ChangeLog call. * Makefile.am: Be sure to catch errors, and fix option name 2012-07-05 Akim Demaille gnulib: update. * gnulib/build-aux/do-release-commit-and-tag: Fix. 2012-07-05 Akim Demaille tests: fix SKIP_IF for Java. * tests/local.at (AT_JAVA_COMPILE): here. 2012-07-05 Akim Demaille api.prefix: incompatible with %name-prefix. * data/bison.m4: Make it incompatible. * tests/input.at: Check that it is. 2012-07-05 Akim Demaille api.prefix: strengthen the tests and fix push-parsers. * tests/calc.at: Check api.prefix in addition to %name-prefix. * tests/headers.at: Check push parsers and pure interface. * tests/local.at: Use YYLTYPE renamed. * data/yacc.c (b4_declare_yyparse_push_): Handle api.prefix. * doc/bison.texi: Style changes. 2012-07-05 Akim Demaille skeletons: style changes. * data/bison.m4: Define default values after having defined the support macros. Kill a dead comment. 2012-07-05 Akim Demaille NEWS: minor changes. * NEWS: style changes. 2012-07-05 Akim Demaille api.prefix: improve the documentation for YYDEBUG. * doc/bison.texi: Explain how api.prefix is applied to YYDEBUG. 2012-07-05 Akim Demaille gnulib: update. * bootstrap, gnulib: Update. * cfg.mk (syntax-check): Don't check "error" usage in bison.texi. 2012-07-04 Akim Demaille tests: headers.at: strengthen. * tests/headers.at (Several headers): Be stricter when checking the exported macros. 2012-07-04 Akim Demaille glr.cc: do not override C++ definitions by C macros. * data/glr.c: here. * data/glr.cc: Fix overquotation. * tests/headers.at: Comment changes. 2012-07-04 Akim Demaille YYLLOC_DEFAULT: factor, and don't export it in headers. * data/c++.m4, data/c.m4 (b4_yylloc_default_define): New. * data/glr.c, data/glr.cc, data/lalr1.cc, data/yacc.c: Use it. * data/glr.cc: Do not define YYLLOC_DEFAULT in the header file, but in the implementation one. 2012-07-04 Akim Demaille api.prefix: do not use #define to handle YYSTYPE_IS_TRIVIAL etc. The following mixture is insane: #define YYSTYPE_IS_TRIVIAL PREFIX_STYPE_IS_TRIVIAL #if (defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL) since, of course YYSTYPE_IS_TRIVIAL is defined. Instead we could define YYSTYPE_IS_TRIVIAL as PREFIX_STYPE_IS_TRIVIAL only when the later is defined, but let's avoid stacking CPP on top of M4: rather, use #if (defined PREFIX_STYPE_IS_TRIVIAL && PREFIX_STYPE_IS_TRIVIAL) * data/glr.c, data/yacc.c: Use YYSTYPE_IS_TRIVIAL, YYSTYPE_IS_DECLARED, YYLTYPE_IS_TRIVIAL and YYLTYPE_IS_DECLARED under their api.prefix-renamed name. 2012-07-04 Akim Demaille tests: portability fixes. Reported by Hydra. * tests/headers.at (Several headers): Be sure to include config.h in the files to compile. 2012-07-04 Akim Demaille c++: fewer #includes in the headers. * data/lalr1.cc: Define YY_NULL in the *.cc file, it is not needed in the header. * data/location.cc: iosfwd suffices. 2012-07-04 Akim Demaille glr.cc: formatting changes. * data/glr.cc: here. 2012-07-04 Akim Demaille tests: more logs. * tests/headers.at (Several parsers): Here. 2012-07-04 Akim Demaille api.prefix: also rename YYDEBUG. The testsuite in master has shown weird errors for the "Mulitple Parsers" tests: the caller of p5.parse() received some apparently random value, while tracing p5.parse() showed that the function was consistently returning 0. It happens when mixing several parser headers, some generated without %debug, others with. In particular the C++ parser was generated with %debug, i.e., with: #ifndef YYDEBUG # define YYDEBUG 1 #endif and compiled separatedly. Yet, its header was included after the one of another parser, this time without %debug, i.e., with #ifndef YYDEBUG # define YYDEBUG 0 #endif in its header. As a result, the parser was compiled with YYDEBUG set, but its header was used without. Since the layout of the objects are then completely different, boom. Therefore, do not change the value of YYDEBUG. Rather, use it as a default value for DEBUG. * data/c.m4 (b4_YYDEBUG_define): New. (b4_declare_yydebug): Rename as... (b4_yydebug_declare): this, for consistency. * data/glr.c, data/glr.cc, data/lalr1.cc, data/yacc.c: Use it. * NEWS: Document it. 2012-07-02 Akim Demaille NEWS: spell check. * NEWS: here. 2012-06-29 Akim Demaille api.prefix. * data/c.m4 (b4_api_prefix, b4_api_PREFIX): New. (b4_prefix, b4_union_name, b4_token_enums, b4_declare_yylstype): Use them. * data/glr.c, data/yacc.c, data/glr.cc, data/lalr1.cc: Use them to change the prefix of exported preprocessor symbols. * src/getargs.c (usage): Ditto. * tests/headers.at (Several parsers): New. * tests/local.at (AT_API_PREFIX): New. AT_YYSTYPE, AT_YYLTYPE): Adjust. * doc/bison.texi (Multiple Parsers): Move documentation of %name-prefix to... (Table of Symbols): here. (Multiple Parsers): Document api.prefix. (%define Summary): Point to it. Use @code for variable names. (Bison Options): -p/--name-prefix are obsoleted. * NEWS: Announce api.prefix. 2012-06-28 Akim Demaille tests: use the generalized default yylex. * tests/actions.at, tests/glr-regression.at, tests/regression.at: here. 2012-06-28 Akim Demaille tests: AT_YYERROR_DEFINE: prepare for list of ints. * tests/local.at (AT_YYERROR_DEFINE): Don't add quotes, check their presence to detect char/int types. * tests/actions.at, tests/conflicts.at, tests/glr-regression.at, * tests/push.at, tests/regression.at: Adjust. 2012-06-27 Akim Demaille skeletons: no longer define YYLSP_NEEDED. * data/c.m4, data/glr.cc: here. * NEWS, TODO: Adjust. 2012-06-27 Akim Demaille c++: do not export YYTOKEN_TABLE and YYERROR_VERBOSE. * src/output.c (prepare_symbols): Do not define b4_token_table. (prepare): Define b4_token_table_flag. * data/bison.m4 (b4_token_table_if): New. Arm it when error-verbose. * data/glr.c, data/yacc.c (YYTOKEN_TABLE): Remove. Use m4. * data/lalr1.cc: Likewise. (YYERROR_VERBOSE): Remove. * NEWS, doc/bison.texi: Document this. 2012-06-26 Akim Demaille maint: use *.texi. This is more consistent with the other packages, and Automake-NG supports only *.texi. * doc/bison.texinfo: Rename as... * doc/bison.texi: this. * doc/Makefile.am, examples/calc++/Makefile.am: Adjust. 2012-06-26 Akim Demaille tests: do not output m4 set up. * tests/local.at (AT_BISON_OPTION_PUSHDEFS, AT_BISON_OPTION_POPDEFS): Use a diversion to avoid outputting comments etc. Removes 17k lines from testsuite (10% of the number of lines). 2012-06-26 Akim Demaille tests: use the generic yyerror function. * tests/actions.at (_AT_CHECK_PRINTER_AND_DESTRUCTOR): Factor. Use AT_YYERROR_DEFINE. Therefore, instead of using stdout, use and check stderr. * tests/glr-regression.at (Uninitialized location when reporting ambiguity): Use AT_YYERROR_DEFINE. 2012-06-26 Akim Demaille tests: use assert instead of plain abort. * tests/actions.at, tests/calc.at, tests/conflicts.at, * tests/cxx-type.at, tests/glr-regression.at, tests/input.at, * tests/named-refs.at, tests/regression.at, tests/torture.at, * tests/local.at: Prefer assert to abort. 2012-06-26 Akim Demaille tests: improve the generic yylex implementation. * tests/local.at (AT_YYSTYPE, AT_YYLTYPE): New. (AT_YYLEX_FORMALS): Use them. (AT_YYLEX_DEFINE): Be independent of the location implementation. 2012-06-26 Akim Demaille tests: generalize the compilation macros. * tests/local.at (AT_COMPILE, AT_COMPILE_CXX): If OUTPUT ends with ".o", then append the "natural" extension for the input file (.c or .cc). If there is no source, pass -c. * tests/headers.at, tests/input.at, tests/regression.at: Adjust. 2012-06-26 Akim Demaille tests: fix confusion between api.prefix and name-prefix. * tests/local.at (AT_NAME_PREFIX): Take api.prefix into account. (AT_API_PREFIX): Rename as... (AT_API_prefix): this. Do not take %name-prefix into account. Fix misuses. 2012-06-26 Akim Demaille maint: gitignores. 2012-06-25 Akim Demaille yacc: work around the ylwrap limitation. * data/yacc.c (b4_shared_declarations): Include the header guards. Do not include the header in the *.c file, duplicate it. * NEWS (Future Changes): Extend, and announce the forthcoming change about the use of the parser header. 2012-06-22 Akim Demaille tests: more uniformity. * tests/local.at (AT_LEX_FORMALS, AT_LEX_ARGS, AT_LEX_PRE_FORMALS) (AT_LEX_PRE_ARGS): Rename as... (AT_YYLEX_FORMALS, AT_YYLEX_ARGS, AT_YYLEX_PRE_FORMALS) (AT_YYLEX_PRE_ARGS): these, for consistency. (AT_API_PREFIX): Take %name-prefix into account. (AT_YYLEX_PROTOTYPE): New. Use it. * tests/actions.at, tests/calc.at, tests/cxx-type.at: Adjust to use them. 2012-06-22 Akim Demaille tests: handle locations in a more generic way. * tests/local.at (AT_YYERROR_PROTOTYPE): New. Use it. * tests/cxx-type.at: Extensive revamp to use a more traditional quotation scheme, and to use the generic yyerror implementation. Prefer Autotest macros to CPP macros. * tests/java.at: . 2012-06-22 Akim Demaille tests: handle locations in the generic yyerror functions. * tests/local.at (AT_YYERROR_DECLARE_EXTERN, AT_YYERROR_DECLARE) (AT_YYERROR_DEFINE): Handle locations for C and C++. * tests/calc.at: Use it for C++ (as C has extra arguments which are not yet handled by AT_BISON_OPTION_PUSHDEFS). * tests/actions.at: Adjust. 2012-06-22 Akim Demaille tests: fix AT_CHECK_CALC. * tests/calc.at (AT_CHECK_CALC): Contrary to its documentation, the test was skipped if given a second argument. Unused feature, remove it. 2012-06-22 Akim Demaille tests: improve infrastructure * tests/local.at (AT_LANG): Use c++ instead of cxx for C++. Adjust dependencies. (AT_YYERROR_DECLARE_EXTERN, AT_YYERROR_DECLARE): Issue nothing for C++/Java. (AT_YYERROR_DEFINE): Use m4_case. (AT_JAVA_COMPILE): Use AT_SKIP_IF. 2012-06-21 Akim Demaille tests: factor. * tests/glr-regression.at, tests/output.at, tests/push.at, * tests/regression.at, tests/torture.at, tests/actions.at: Use AT_YYLEX_* and AT_YYERROR_*. 2012-06-21 Akim Demaille skeletons: minor style changes * data/glr.c, data/yacc.c: here. 2012-06-21 Akim Demaille tests: AT_LANG. * tests/local.at (AT_BISON_OPTION_PUSHDEFS, AT_BISON_OPTION_POPDEFS): Define/undefine AT_LANGE (AT_LANG_COMPILE): New. (AT_FULL_COMPILE): Use AT_LANG. 2012-06-21 Akim Demaille c skeletons: factor the declaration of yylloc and yylval. There is one difference: now, even without --defines, we generate extern declarations for these variables. The factoring is worth it. * data/c.m4 (b4_declare_yylstype): Declare them. * data/glr.c, data/yacc.c: Adjust. 2012-06-21 Akim Demaille news: condemn YYPARSE_PARAM and YYLEX_PARAM. * NEWS: here. (Bison 1.875): Add %parse-param and %lex-param. * doc/bison.texinfo: Spello. 2012-06-20 Akim Demaille maint: regen. * Makefile.am (regen): New target. 2012-06-19 Akim Demaille maint: formatting changes. * NEWS: Fix indentation of code snippets. Untabify. 2012-06-17 Akim Demaille tests: support api.prefix. * tests/local.at (AT_BISON_OPTION_PUSHDEFS, AT_BISON_OPTION_POPDEFS): Define AT_API_PREFIX. (AT_YYERROR_DEFINE, AT_YYERROR_DECLARE_EXTERN, AT_YYLEX_DECLARE_EXTERN) (AT_YYLEX_DEFINE): Use it. * tests/input.at, tests/regression.at, tests/torture.at: Add AT_BISON_OPTION_PUSHDEFS/POPDEFS. 2012-06-17 Akim Demaille tests: pacify font-lock-mode. * tests/local.at: here. 2012-06-17 Akim Demaille tests: remove test covered elsewhere. * tests/headers.at (%union and --defines): Remove, pretty useless and insignificant. 2012-06-17 Akim Demaille tests: factor the declaration/definition of yyerror and yylex. * tests/local.at (AT_YYERROR_DECLARE, AT_YYERROR_DECLARE_EXTERN) (AT_YYERROR_DEFINE, AT_YYLEX_DECLARE, AT_YYLEX_DECLARE_EXTERN) (AT_YYLEX_DEFINE): New. Must be used inside AT_BISON_OPTION_PUSHDEFS/POPDEFS pair. * tests/actions.at, tests/conflicts.at, tests/glr-regression.at, * tests/headers.at, tests/input.at, tests/named-refs.at, * tests/regression.at, tests/skeletons.at, tests/synclines.at, * tests/torture.at: Use them. 2012-06-17 Akim Demaille regen. 2012-06-17 Akim Demaille tests: portability issues. * tests/calc.at (AT_CALC_MAIN): Missing include reported by Hydra. 2012-06-15 Akim Demaille tests: call the parser from another compilation unit. In order to improve the testing of %defines, which exports the interface of the generated parser, change the calc.at tests so that when %defines is passed, main will be in another compilation unit. It loads the generated header. * tests/calc.at (AT_CALC_MAIN): New. Includes the definition of the global variables. Therefore, now declare them from the %requires section of the parser. Adjust to yydebug and yyparse being renamed by %name-prefix. 2012-06-15 Akim Demaille glr.c, yacc.c: declare yydebug in the header. * data/c.m4 (b4_declare_yydebug): New. * data/glr.c, data/yacc.c (b4_shared_declarations): Use it. Remove the corresponding code from the parser body. * NEWS: Doc this. 2012-06-15 Akim Demaille skeletons: use header guards. * data/glr.c, data/glr.cc, data/yacc.c: here. * NEWS: Document it. 2012-06-15 Akim Demaille tests: improve AT_FULL_COMPILE. * tests/local.at: Accept a third argument. Simplify quotation pattern. Calls for better refactoring, but will suffice for a while. 2012-06-15 Akim Demaille tests: reorder. * tests/calc.at (power): Move its definition, as a preparation for forthcoming changes. And space changes. 2012-06-15 Akim Demaille tests: strengthen the test on generated headers inclusion * tests/headers.at (AT_TEST_CPP_GUARD_H): Accept Bison directives. (Invalid CPP headers): Check glr. 2012-06-15 Akim Demaille yacc.c: instead of duplicating y.tab.h inside y.tac.c, include it. This is already what glr.c and lalr1.cc do. * data/yacc.c: here. 2012-06-13 Akim Demaille yacc.c: factor. yacc.c used to include two almost identical sections: one for the *.h file, and another for the *.c file. The main difference is that in the *.c file we used the yy* names (as %name-prefix is handled by "#define yy* *" before), while the *.hh used * names. Keep only the later. If this is troublesome, b4_shared_declarations can easily take the desired prefix as argument. * data/yacc.c (b4_shared_declarations): New. Use it to factor duplicated declarations. 2012-06-12 Akim Demaille skeletons: factor yacc.c and glr.c. yacc.c and glr.c share common declarations. Their YYLTYPE are exactly equal, and their YYSTYPE are sufficiently alike to be fused (its declaration was protected by YYSTYPE_IS_DECLARED in yacc.c, but not in glr.c). Besides, yacc.c duplicated the definitions of YYLTYPE and YYSTYPE (*.h/*.c). * data/c.m4 (b4_declare_yylstype): New. * data/yacc.c, data/glr.c: Use it. 2012-06-12 Akim Demaille glr.c: minor refactoring. * data/glr.c (b4_shared_declarations): Move from the generated file section, to the M4 prologue. 2012-06-12 Akim Demaille tests: remove all the -On flags. * tests/atlocal.in: Here. Reported by Gilles Espinasse. 2012-06-12 Akim Demaille maint: fix spello. * README-hacking: Here. * THANKS: Reported by Gilles Espinasse. 2012-06-12 Akim Demaille maint: improve release procedure instructions. * gnulib: Update, in particular (README-release). * bootstrap.conf: don't require gendocs, provided by gnu-web-doc-update, provided by readme-release. * README-hacking: Update accordingly. 2012-06-07 Akim Demaille gnulib: update readme-release. * gnulib (readme-release): Now includes the modules it promotes. * bootstrap.conf: Simplify accordingly. 2012-06-07 Akim Demaille maint: cfg.mk: manual title. * cfg.mk (manuel_title): New. 2012-06-07 Akim Demaille maint: cfg.mk: simplify * cfg.mk: Remove bits provided by maint.mk. 2012-06-07 Akim Demaille maint: post-release administrivia * NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update. 2012-06-05 Akim Demaille version 2.5.1 * NEWS: Record release date. 2012-06-05 Akim Demaille NEWS: prepare for 2.5.1. * NEWS: Be compliant with do-release-commit-and-tag. 2012-06-05 Akim Demaille maint: update release procedure * bootstrap.conf: Request do-release-commit-and-tag and readme-release. * README-hacking: Adjust. 2012-06-05 Jim Meyering maint: fix comment typos Using http://github.com/lyda/misspell-check, massage its output into sed commands to perform the suggested changes. Initially, I filtered out the THRU->Through changes, because that failed to retain capitalization in the grammar token. Instead, do this manually, beforehand: sed -i s/THRU/THROUGH/ tests/existing.at git ls-files|misspellings -f -|perl -nl \ -e '/^(.*?)\[(\d+)\]: (\w+) -> "(.*?)"$/ or next;' \ -e '($file,$n,$l,$r)=($1,$2,$3,$4); $q="'\''"; $r=~s/$q/$q\\$q$q/g;'\ -e 'print "sed -i $q${n}s!$l!$r!$q $file"'|bash 2012-05-23 Akim Demaille maint: post-release administrivia * NEWS: Add header line for next release. * .prev-version: Record previous version. * cfg.mk (old_NEWS_hash): Auto-update. 2012-05-23 Akim Demaille Bison 2.5.1_rc2. * NEWS: Update. 2012-05-23 Akim Demaille doc: fixes. * doc/bison.texinfo: Fix errors spotted by syntax-check. 2012-05-23 Akim Demaille build: fix ChangeLog generation. * gnulib: Update to get newest gitlog-to-changelog. * bootstrap: Update. * Makefile.am (gen-ChangeLog): Fix for Bison's git log style. 2012-05-21 Akim Demaille c++: compute the header guards. This is a frequent request. Recently pointed out by Wei Song, . * data/c.m4 (b4_tocpp, b4_cpp_guard, b4_cpp_guard_open) (b4_cpp_guard_close): New. * data/lalr1.cc, data/location.cc, data/stack.hh: Use them. * TODO (Header Guards): Move to... * NEWS: here. Formatting changes. 2012-05-21 Akim Demaille skeletons: remove support for unused directive. * src/scan-skel.l (@dir_prefix@): Remove support, has never been used, not even in the commit that introduced it, 2b81e969ea04c1a6502928ba7e847ec8ff7dcb2f. 2012-05-21 Akim Demaille lalr1.cc: improve Doxygen documentation. * data/location.cc: Qualify file names with directory name. 2012-05-21 Akim Demaille lalr1.cc: extract stack.hh. See commit 51bacae6b58fd5c6cce861f00440dc917384625e. * data/stack.hh: New, extracted from... * data/lalr1.cc: here. * data/Makefile.am: Adjust. 2012-05-21 Akim Demaille news: convert to double quotes. * NEWS: Convert from `quoted' to "quoted". Reported by Stefano Lattarini. http://lists.gnu.org/archive/html/bison-patches/2012-05/msg00039.html 2012-05-21 Akim Demaille space changes. * src/flex-scanner.h: Indent nested cpp directives. 2012-05-21 Akim Demaille build: do not prototype flex-generated functions. Some versions of Flex, possibly modified by the distribution package maintainers, have incompatible signatures. Since newer versions of Flex prototype their functions, avoid the conflicts in that case. Reported by Stefano Lattarini. . * src/flex-scanner.h (FLEX_VERSION_GT): New. Use it to issue prototypes for flex-generated functions only for versions up to 2.5.31, in accordance with the comment. See commit dc9701e848f27ae64b6ddcf809580998667d60f2. Use it to define yylex_destroy when needed. 2012-05-16 Akim Demaille build: fix ChangeLog generation. * Makefile.am (gen-ChangeLog): Fix for VPATH builds. 2012-05-14 Akim Demaille Bison 2.5.1_rc1. * NEWS: Update. * src/parse-gram.c, src/parse-gram.h: Regen. 2012-05-11 Akim Demaille tests: save/restore Autotest special files when checking XML support. Currently the test 248, "parse-gram.y: LALR = IELR", fails BISON_TEST_XML is set. * tests/local.at (AT_BISON_CHECK_XML): Belt: Save/restore files. * tests/regression.at (parse-gram.y: LALR = IELR): Suspenders: Don't rely on expout. Each one of these changes suffices. 2012-05-11 Akim Demaille tests: AT_SAVE_SPECIAL_FILES / AT_RESTORE_SPECIAL_FILES. Some of our macros play with expout and other Autotest special files, which may break their callers (e.g., currently TESTSUITEFLAGS='248 BISON_TEST_XML=1' fails). There is already some support for this. Expand it to be ready to use it elsewhere. * tests/local.at (AT_RESTORE_SPECIAL_FILES, AT_SAVE_SPECIAL_FILES) (at_save_special_files, at_restore_special_files): New. (AT_BISON_CHECK_NO_XML): Use them. 2012-05-11 Akim Demaille tests: honor TESTSUITEFLAGS in all the check targets. * tests/Makefile.am (installcheck-local): Simplify. (maintainer-check-posix, maintainer-check-valgrind): Honor $(TESTSUITEFLAGS). 2012-05-11 Akim Demaille build: do not enable c++ warnings on 0 when nullptr is not supported. * configure.ac (WARN_CXXFLAGS): Enable -Wzero-as-null-pointer-constant only when nullptr is supported.. 2012-05-11 Akim Demaille maint: update gnulib. * bootstrap, gnulib: Update. 2012-05-09 Akim Demaille build: config.in.h. Historically we used config.hin (where everybody else used config.h.in) to please DOS. Now that we use gnulib, there are already tons of files with several dots, especially *.in.h. * configure.ac: Rename config.hin as config.in.h. 2012-05-09 Akim Demaille build: move silent rules. * tests/Makefile.am: In the generation of the test suite. 2012-05-09 Akim Demaille glr.c: reduce variable scopes. * data/glr.c: Where appropriate, fuse variable declarations followed by assignments by variable declarations with a value. Where appropriate, introduce new scopes to limit variable spans. 2012-05-08 Akim Demaille maint: maintainer-release-check. * tests/Makefile.am (maintainer-release-check): New. * Makefile.am (MAINTAINER_CHECKS): New. Support maintainer-release-check. * README-hacking: Document it, and syntax-check too. 2012-05-08 Akim Demaille maint: shush a syntax-check. * cfg.mk: lib/timevar is not planned to be gnulib'ed, as it comes from GCC. 2012-05-08 Akim Demaille maint: prefer "commit message" to "log entry". * README-hacking: here. Suggested by Stefano Lattarini. 2012-05-08 Akim Demaille command line: fix minor leaks. * src/getargs.c (getargs): Free pointers before allocating them new content. 2012-05-08 Akim Demaille maint: we no longer maintain the ChangeLog. * .gitattributes: No need to merge it. * README-hacking: Update release instructions. 2012-05-06 Akim Demaille maint: fix the generation of the synclines for bison's parser. * tests/bison.in: Import from master the changes that make this script generate synclines that are independant of the builddir/srcdir user's set up. 2012-05-06 Akim Demaille maint: regen. * src/parse-gram.c, src/parse-gram.h: Regen. 2012-05-06 Akim Demaille maint: import the xmemdup0 gnulib module. * bootstrap.conf: Require this module. * src/parse-gram.y: Include xmemdup0.h. 2012-05-06 Akim Demaille maint: remove left-over gnulib modules. * bootstrap.conf (gnulib_modules): Remove pipe-posix. * lib/.gitignore, m4/.gitignore: Remove files that we no longer use. 2012-05-06 Akim Demaille maint: ignore files imported by autopoint. * m4/.gitignore: here. 2012-05-06 Akim Demaille build: AC_PROG_LEX: use more readable variable names. * m4/flex.m4 (AC_PROG_LEX): Prefer LEX_IS_FLEX to FLEX. Prefer true/false to yes/no for such variables. * configure.ac: Adjust. 2012-05-06 Jim Meyering maint: regen src/parse-gram.[ch] 2012-05-06 Jim Meyering Akim Demaille maint: simplify parse-gram.y * src/parse-gram.y (add_param): Use xmemdup0 in place of xmalloc+memcpy, and strspn in place of an open-coded loop. 2012-05-06 Jim Meyering maint: s/strncpy/memcpy/, when equivalent * src/output.c (output_skeleton): Use memcpy, not strncpy, since the source is known to fit in the destination buffer. * src/parse-gram.y (%skeleton): Likewise. 2012-05-04 Akim Demaille glr.c: untabify. * data/glr.c: here. 2012-05-04 Akim Demaille glr.cc: untabify. * data/glr.cc: here. 2012-05-04 Akim Demaille glr.cc: formatting changes. * data/glr.cc: Fit in 80 columns. 2012-05-04 Akim Demaille glr.cc: remove unused signature. * data/glr.cc (yydestruct_): Not used, remove. It is yydestruct which is used. 2012-05-04 Akim Demaille glr.cc: properly declare locations are const where appropriate. * data/glr.cc (yyerror): The location is const. 2012-05-04 Akim Demaille doc: fix @xref. * doc/bison.texinfo: here. 2012-05-02 Akim Demaille tests: ignore code coverage/profiling failure messages The Hydra buildfarm provides code coverage analysis. For some reason, in some test cases, code coverage data seem to be incompatible, and generate error messages at parser run-time. Ignore these messages so that (i) these tests do pass, (ii) coverage results be provided by Hydra. * tests/local.at (AT_PARSER_CHECK): Ignore messages for failed merges of code coverage/profiling results. 2012-04-16 Akim Demaille doc: fix some invalid @ref. * doc/bison.texinfo: Fix incorrect @ref uses. 2012-04-16 Akim Demaille build: fix previous commit. * bootstrap: Update from gnulib. 2012-04-16 Akim Demaille install-pdf: fix. * gnulib: Fix install-pdf in po/ and runtime-po/. Reported by Hans Aberg. Fixed by Joel E. Denny. http://lists.gnu.org/archive/html/bug-bison/2011-05/msg00008.html 2012-04-16 Akim Demaille NEWS: Update. * NEWS: Spell check. (%printer): is now documented. 2012-04-16 Akim Demaille %printer: support both yyo and yyoutput. lalr1.cc used to support yyo, but not yyoutput. Support both, but document only yyoutput (at least until there is some consensus on this). * data/c.m4 (yy_symbol_value_print): Also support yyo. * data/glr.cc (yy_symbol_value_print_): Support both yyo and yyoutput. * data/lalr1.cc: Also support yyoutput. * doc/bison.texinfo: Explicitly use yyoutput in the examples. * examples/mfcalc/mfcalc.test: Test the -p option. 2012-04-16 Akim Demaille doc: mfcalc: demonstrate %printer. * doc/bison.texinfo (Printer Decl): New. Number mfcalc.y snippets so that they are output in the proper order. (The mfcalc Main): Use yydebug. (Debugging): Simplify the text. (Enabling Traces, Mfcalc Traces, The YYPRINT Macro): New. (Table of Symbols): Document YYPRINT and YYFPRINTF. 2012-04-16 Akim Demaille tests: style changes. * tests/input.at: Use "print" in %printer instead of "destroy". It is unused, so we don't care, yet it is less surprising. * tests/actions.at: Comment changes. 2012-04-10 Akim Demaille build: require Flex. * configure.ac: Require Flex. 2012-04-10 Akim Demaille build: flex.m4: check for Flex. * m4/flex.m4 (_AC_PROG_LEX_YYTEXT_DECL): Check that $LEX supports some of the Flex options, and exclusive start conditions. Define FLEX to 'yes'/'', as AC_PROG_CC does for GCC. 2012-04-10 Akim Demaille build: flex.m4: quote properly. * m4/flex.m4: Use quotes more systematically. 2012-04-10 Akim Demaille build: flex.m4. * m4/flex.m4: New. An exact copy of what is in Autoconf currently. 2012-04-10 Akim Demaille build: autoconf: update. * submodules/autoconf: Update. There are no changes in data/m4sugar/foreach.m4, and the changes in data/m4sugar/m4sugar.m4 are minor. 2012-04-10 Akim Demaille glr: eliminate last bits of unwanted locations. * data/glr.c (YYLTYPE): Do not define when locations are not demanded. Adjust all dependencies. 2012-04-10 Akim Demaille NEWS: 2.6 will drop K&R. * NEWS: here. (glr.c): Fix a spello. 2012-04-09 Akim Demaille TODO: remove dead items. * TODO (Documentation, %printer, Java): Remove, already done (or just waiting for approval). (Fortran, BTYacc): Remove, there does not seem to be demand. 2012-04-09 Akim Demaille TODO: import from master. * TODO: Copy the current version. 2012-04-07 Akim Demaille gnulib: update. * bootstrap.conf (bootstrap_sync): True again. It was disabled while waiting for changes to be integrated in gnulib's bootstrap, which was done long ago. * bootstrap, gnulib: Update. 2012-04-04 Akim Demaille maint: update NEWS. * NEWS: Fix entry about __attribute__. Reorder by "decreasing" order of importance. 2012-04-04 Akim Demaille doc: fix index. http://lists.gnu.org/archive/html/bison-patches/2012-04/msg00006.html * doc/bison.texinfo: Avoid using @def* variant with more than the defined entity as main entity, as it results in an incorrect index. For instance, don't document {return YYERROR;}, which results in a single index entry "return YYERROR;", but rather as typed function whose return type is "type", and whose argument list is ";". 2012-04-04 Akim Demaille doc: fix documentation of YYERROR. * doc/bison.texinfo (Table of Symbols): Fix the documentation of YYERROR by copying that from "Action Features". 2012-04-01 Akim Demaille c++: more YY_NULL Caught by maintainer-check-g++. * data/glr.c, data/lalr1.cc, data/yacc.c, tests/cxx-type.at, * tests/glr-regression.at, tests/push.at: When simple to do, avoid expliciting the null ptr. Otherwise use YY_NULL. 2012-04-01 Akim Demaille bump to 2012 in skeletons. * data/glr.c, data/glr.cc, data/lalr1.cc, data/lalr1.java, * data/location.cc, data/yacc.c: Bump copyright year ranges. 2012-04-01 Akim Demaille build: remove ancient Autoconf tests. lib/subpipe.c was removed in 47fa574761319b0a422691223c9b8a9a72f36aa2. * m4/subpipe.m4: Remove. * configure.ac (BISON_PREREQ_SUBPIPE): Remove. 2012-03-31 Akim Demaille doc: c++: complete the location documentation. * data/location.cc (position::initialize, location::initialize): Also accept line and column, with default values. * doc/bison.texinfo (C++ position, C++ location): New nodes. Describe more thoroughly these classes. Fix several Texinfo misuses. 2012-03-31 Akim Demaille c++: locations: provide convenience constructors. * data/location.cc (position::position): Accept file, line and column as arguments with default values. Always qualify initial line and column literals as unsigned. (location::location): Provide convenience constructors. 2012-03-31 Akim Demaille c++: locations: remove useless "inline". * data/location.cc: "inline" is implicit when defining methods in the class definition. 2012-03-31 Akim Demaille glr: do not use locations when they are not requested When the test suite runs with -O2 and warnings enabled, G++ complains of locations being used, but not initialized. The simplest is to not use locations. * data/glr.c (b4_locuser_formals, b4_locuser_args): New. Use them when locations should not be used. Use b4_locations_if where appropriate. (yyuserAction): Modify the order to the arguments to make it more alike the other routines, and to make use of b4_locuser_args simpler. 2012-03-31 Akim Demaille c++: use nullptr for C++11. C++11 introduces "nullptr" which plays the role of C's NULL, in replacement of "0". Fix the C++ skeletons to avoid warnings about uses of "0" in place of "nullptr", and improve C skeletons to also use this "nullptr" when compiled with a C++11 compiler. * configure.ac: More C++ warnings. * NEWS (2.5.1): Document this. * data/c++.m4, data/c.m4 (b4_null_define): New. (b4_null): Use YY_NULL instead of 0. * data/glr.c, data/lalr1.cc, data/location.cc, data/yacc.c: Call b4_null_define/b4_null where appropriate. Use YY_NULL instead of NULL. * data/location.cc (initialize): Accept a default argument, YY_NULL. * tests/actions.at, tests/calc.at: Adjust. * data/glr.c, lib/libiberty.h, src/system.h (__attribute__): Do not disable it when __STRICT_ANSI__ is defined, as, for instance, it disables the __attribute__((unused)) which protects us from some compiler warnings. This was already done elsewhere in Bison, in 2001, see 4a0d89369599a2cea01f4fbdf791f426a02cb5a3. * tests/regression.at: Adjust output. 2012-03-30 Akim Demaille build: simplify and improve the compiler warnings for tests. * configure.ac (warn_common, warn_c, warn_cxx): New. Use them to compute independently the options supported by the C and C++ compilers. Don't AC_SUBST the variables passed to gl_WARN_ADD: it does it for us. (WARN_CFLAGS_TEST, WARN_CXXFLAGS_TEST): Don't aggregate $WARN_CFLAGS and $WARN_CXXFLAGS in them now, leave it to atlocal.in. (O0CFLAGS, O0CXXFLAGS): Move their definition to... * tests/atlocal.in: here. Be more systematic between C and C++. Reorder to factor between variables. Propagate all of the variables when --compile-c-with-cxx. 2012-03-30 Akim Demaille gnulib: update. 2012-03-30 Akim Demaille maint: formatting changes. * src/system.h: Indent CPP directives using cppi. 2012-03-27 Akim Demaille NEWS: update. * NEWS: Java fixes, more about the doc changes, liby issues. 2012-03-27 Tim Landscheidt Java: Fix syntax error handling without error token. * data/lalr1.java (YYParser::parse): Here. * tests/java.at: Add test case. 2012-03-24 Akim Demaille tests: beware of -pedantic on large #line numbers. * tests/local.at (AT_TEST_TABLES_AND_PARSE): Don't pass -pedantic when compiling large canonical-LR parsers. Reported by Tys Lefering. http://lists.gnu.org/archive/html/bug-bison/2012-03/msg00025.html 2012-03-24 Akim Demaille tests: when using the C++ compiler, use its flags too. * tests/local.at: Go for colors. (--compile-c-with-cxx): New option. We used to pass "CC=$CXX" as command line argument, but it was not possible to adjust CFLAGS accordingly in atlocal, since it is loaded before assignments on the command line are honored (so that the command line takes precedence). * tests/atlocal.in: Implement it. * tests/local.mk: Use it. 2012-03-19 Akim Demaille doc: update the --verbose report format. * doc/bison.texinfo (Understanding): Adjust to match the current format. 2012-03-19 Akim Demaille doc: spell check. * doc/bison.texinfo: here. 2012-03-19 Akim Demaille doc: stmt, not stmnt. * doc/bison.texinfo: s/stmnt/stmt/g. This is a much more common abbreviation for "statement". 2012-03-19 Akim Demaille doc: save width. * doc/bison.texinfo (Language and Grammar): Use the same layout for an example in all the versions, i.e., keep as general case what used to be used only for Info. 2012-03-19 Akim Demaille doc: reformat grammar snippets. * doc/bison.texinfo: Convert the grammar examples to use a narrower style. This helps fitting into the @smallbook constraints. http://lists.gnu.org/archive/html/bison-patches/2012-03/msg00011.html 2012-03-19 Akim Demaille doc: use only @example, not @smallexample. * doc/bison.texinfo: Convert all @smallexamples into @examples. Adjust layout where needed. 2012-03-19 Akim Demaille doc: style changes. * doc/bison.texinfo: Avoid line width issues with TeX. Upgrade ancient messages. Move some comments to better looking places. Add more @group. (Mfcalc Symbol Table): Reduce variable scopes. Prefer size_t for sizes. Prefer declarations with an initial value. Fix a @group environment. 2012-03-19 Paul Eggert doc: minor fixes to "Understanding" section * doc/bison.texinfo (Understanding): Minor wording fixes and improvements. Fixes problems reported in . 2012-03-13 Akim Demaille tests: minor fixes/simplifications * tests/local.at (AT_BISON_CHECK_NO_XML): Simplify sed programs, quotation, and default value assignments. Ensure a proper value to the numeric variables. Reported by Lie Yan. http://lists.gnu.org/archive/html/bug-bison/2012-03/msg00000.html 2012-03-09 Akim Demaille tests: be robust to quote style. See . * src/main.c (main): Define the quoting style we use. * tests/atlocal.in: Use ASCII style quotes during the tests. 2012-03-09 Akim Demaille maint: update gnulib. * gnulib: update. * src/scan-gram.l: Don't use the (former version of) STREQ. 2012-03-06 Akim Demaille tests: be robust to POSIXLY_CORRECT being defined. * tests/local.at (AT_BISON_CHECK_NO_XML): Check if POSIXLY_CORRECT is defined, not if it is defined to 1. Reported by Lie Yan. http://lists.gnu.org/archive/html/bug-bison/2012-03/msg00000.html 2012-02-23 Akim Demaille doc: fix environment issues. * doc/bison.texinfo: Do not use @verbatim, in particular when we use @group inside. Use @quotation instead of @display for frequently asked questions, it looks much nicer. 2012-02-23 Akim Demaille regen. * src/parse-gram.h, src/parse-gram.c: regen. 2012-02-23 Akim Demaille tests: fix regressions. Exit status 63 is documented for version-mismatch. * bootstrap.conf (gnulib_modules): Remove sysexits. * src/system.h (EX_MISMATCH): Define. * src/parse-gram.y (version_check): Use it instead of EX_CONFIG. Missing includes. * tests/calc.at, tests/named-refs.at: Include assert.h. 2012-02-21 Akim Demaille glr: fix ambiguity reports. * tests/glr-regression.at (Ambiguity reports): New. 2012-02-19 Akim Demaille doc: stylistic improvements. * doc/bison.texinfo: Prefer "continue" to empty loop bodies. Add some @group/@end group to avoid poor page breaks. 2012-02-19 Akim Demaille maint: address sc_prohibit_doubled_word. * data/yacc.c, doc/bison.texinfo: Reword to avoid having to disable that check. * cfg.mk: No longer skip this test. 2012-02-19 Akim Demaille maint: address sc_prohibit_always-defined_macros. * cfg.mk: No longer skip it, except where EXIT_SUCCESS is used as a witness for stdlib.h. Skip this test when appropriate. * data/yacc.c: Drop a note about why EXIT_SUCCESS is defined here. 2012-02-19 Akim Demaille maint: address sc_bindtextdomain, sc_program_name and sc_prohibit_HAVE_MBRTOWC. * bootstrap.conf (gnulib_modules): Require progname. * src/complain.c, src/getargs.c, src/getargs.h, src/main.c: Use it. * cfg.mk (exclude): New. Use it. Skip lib/main.c for bindtextdomain and set_program_name. 2012-02-19 Akim Demaille maint: remove stray file. * config.hin: Remove. 2012-02-19 Akim Demaille maint: address some syntax-issues remaining after cherry-picking from master. * cfg.mk: Skip bison generated files, 2.5 is generating trailing blanks. This is already fixed in master. * tests/conflicts.at, tests/java.at: Fix white space issues. 2012-02-19 Akim Demaille regen. * src/parse-gram.c, src/parse-gram.h: Regen. 2012-02-19 Akim Demaille bitset: fix an incorrect error message. * lib/bitset_stats.c: here. Reported by Stefano Lattarini. 2012-02-19 Jim Meyering maint: reenable sc_m4_quote_check * cfg.mk (local-checks-to-skip): Reenable sc_m4_quote_check. * m4/dmalloc.m4: Add quotes. 2012-02-19 Akim Demaille maint: remove trailing empty lines. * cfg.mk: No longer skip sc_prohibit_empty_lines_at_EOF, except for parse-gram.h (generated). * examples/mfcalc/.gitignore, lib/.gitignore, m4/.gitignore, * po/.gitignore, runtime-po/.gitignore: Remove trailing/leading empty lines. 2012-02-19 Akim Demaille maint: avoid "magic number exit". * cfg.mk (local-checks-to-skip): No longer skip it. * bootstrap.conf (gnulib_modules): Add sysexits. * doc/bison.texinfo, etc/bench.pl.in, src/parse-gram.y, * src/system.h, tests/calc.at, tests/named-refs.at: Use assert where appropriate instead of "if (...) exit". Use symbolic exit status elsewhere. 2012-02-19 Akim Demaille maint: fix some syntax-check issues. * cfg.mk (local-checks-to-skip): Remove sc_prohibit_quotearg_without_use, sc_prohibit_strcmp, sc_unmarked_diagnostics, sc_useless_cpp_parens. (sc_unmarked_diagnostics): Skip DJGPP. * data/yacc.c, src/LR0.c, src/closure.c, * src/flex-scanner.h, src/gram.c, src/lalr.c, * src/print-xml.c, src/print.c, src/print_graph.c, * src/reader.c, src/reduce.c, src/tables.c: Don't use parens with cpp's defined. Remove useless includes. 2012-02-19 Akim Demaille maint: address a couple of syntax-check errors. * cfg.mk (local-checks-to-skip): Remove sc_error_message_period and sc_error_message_uppercase. Address the uncovered issues. * po/POTFILES.in: Add missing files. * src/symtab.c: Remove useless includes. * lib/bitset_stats.c, src/files.c, tests/glr-regression.at: Use conformant error messages. 2012-02-19 Akim Demaille maint: gnulib: upgrade. 2012-02-15 Akim Demaille maint: rely on Automake for parsers. * Makefile.am (AM_YFLAGS): Automake looks for "-d" alone. Move other options in here. (BISON): New. (YACC): Use it. (bison_SOURCES): Now that automake can see `-d' in AM_YFLAGS, we can rely on it to compile and ship the parser header files. Based on commit 737406a32c201471699bfa0843d1f432f3ec29ab and commit 3d6ca339083c278d907c9f030f4ba6bc5ecb07f2. 2012-02-14 Akim Demaille maint: more authors. * AUTHORS: here. Suggested by Tys Lefering. 2012-02-14 Akim Demaille maint: add license headers. * examples/calc++/test, examples/variant.yy, AUTHORS, THANKS, * tests/atlocal.in, tests/bison.in: Add license headers. Reported by Tys Lefering. 2012-02-14 Akim Demaille maint: remove obsolete file. * etc/make-ChangeLogs: Remove (used for rcs to cvs migration!). Reported by Tys Lefering. 2012-02-08 Akim Demaille use a more consistent quoting style. See . Use quotearg as often as possible instead of leaving the choice of the quotes to the translators. Use shorter messages. Factor similar messages to a single format, to make localization easier. * src/files.c, src/getargs.c, src/muscle-tab.c, src/reader.c * src/scan-code.l, src/scan-gram.l, src/symtab.c: Use quote() or quotearg_colon() on printf arguments instead of quotes in the format string. * data/bison.m4: Keep sync with the changes in muscle-tab.c. * tests/skeletons.at, tests/input.at, tests/regression.at: Adjust expected messages. 2012-01-31 Akim Demaille maint: remove stray debug code. * src/Makefile.am (echo): Remove. 2012-01-31 Akim Demaille maint: space changes. * src/Makefile.am: Use 2 leading spaces for variable definition spreading over several lines. 2012-01-31 Akim Demaille maint: more silent-rules. * doc/local.mk, src/local.mk, examples/calc++/Makefile.am: Use $(AM_V_GEN) and $(AM_V_at) where appropriate. 2012-01-31 Jim Meyering do not ignore errors like ENOSPC,EIO when writing to stdout Standard output was never explicitly closed, so we could not detect failure. Thus, bison would ignore the errors of writing to a full file system and getting an I/O error on write, but only for standard output, e.g., for --print-localedir, --print-datadir, --help and some verbose output. Now, "bison --print-datadir > /dev/full" reports the write failure: bison: write error: No space left on device Before, it would exit 0 with no diagnostic, implying success. This is not an issue for "--output=-" or the other FILE-accepting command-line options, because unlike most other GNU programs, an output file argument of "-" is treated as the literal "./-", rather than standard output. * bootstrap.conf (gnulib_modules): Add closeout. * src/main.c: Include "closeout.h". Use atexit to ensure we close stdout. * .gitignore: Ignore new files pulled in via gnulib-tool. 2012-01-26 Akim Demaille tests: fix expected output. * tests/actions.at (YYBACKUP): here. 2012-01-26 Akim Demaille yacc: fix YYBACKUP. Reported by David Kastrup: https://lists.gnu.org/archive/html/bug-bison/2011-10/msg00002.html. * data/yacc.c (YYBACKUP): Accept rhs size. Restore the proper state value. * TODO (YYBACKUP): Make it... * tests/actions.at: a new test case. * NEWS, THANKS: Update. 2012-01-26 Akim Demaille maint: update TODO. * TODO (Labeling the symbols): Remove, it's done ("Name references"). 2012-01-26 Akim Demaille maint: update THANKS. * THANKS: Update Tys's address, on his request. 2012-01-26 Akim Demaille maint: fix --gcc-warnings support. * configure.ac: Use enable_gcc_warnings instead of enableval, which is valid only with AC_ARG_ENABLE. 2012-01-26 Akim Demaille maint: silent-rules. * configure.ac: Ask for silent-rules support. Enable it by default. 2012-01-26 Akim Demaille maint: remove trailing blanks. * src/scan-code.l: Here. 2012-01-25 Paul Eggert tests: port to Solaris 10 'diff -u' * tests/regression.at (parse-gram.y: LALR = IELR): Port to Solaris 10, where "diff -u X X" outputs "No differences encountered" instead of outputting nothing. Reported by Tomohiro Suzuki in . 2012-01-25 Jim Meyering build: avoid possibly-replaced fprintf in liby-source, yyerror.c * lib/yyerror.c (yyerror): Use fputs and fputc rather than fprintf with a mere "%s\n" format. Always return 0 now, on the assumption that the return value was never used anyway. Don't include after all. This avoids a problem reported by Thiru Ramakrishnan in http://lists.gnu.org/archive/html/help-bison/2011-11/msg00000.html * cfg.mk: Exempt lib/yyerror.c from the sc_require_config_h_first test. * THANKS: Update. 2012-01-24 Jim Meyering maint: generate ChangeLog from git log * Makefile.am (gen-ChangeLog): New rule. (dist-hook): Depend on it. (EXTRA_DIST): Distribute the two ChangeLog-* files. * bootstrap.conf (gnulib_modules): Add gitlog-to-changelog. (bootstrap_post_import_hook): Ensure that ChangeLog exists. * build-aux/git-log-fix: New file. * ChangeLog-2012: Renamed ... * ChangeLog: ... from this. * ChangeLog-1998: Renamed ... * OChangeLog: ...from this * .gitignore: Add ChangeLog. 2012-01-24 Jim Meyering change more quotes in source, and adjust tests to match Run this command to change each `%s' to '%s' in source directories: git grep -l '`%s'\' src djgpp data \ |xargs perl -pi -e '$q="'\''";s/`%s$q/$q%s$q/g' * data/bison.m4: Affected per the above. * djgpp/subpipe.c: Likewise. * src/files.c: Likewise. * src/getargs.c: Likewise. * src/muscle-tab.c: Likewise. * src/reader.c: Likewise. * tests/glr-regression.at: Adjust to match. * tests/input.at: Likewise. * tests/push.at: Likewise. * tests/skeletons.at: Likewise. 2012-01-23 Jim Meyering quote consistently and make tests pass with new quoting from gnulib Updating to gnulib pulled in new quote and quotarg modules, by which quoting is now done like 'this' rather than `this'. That change induces many "make check" test failures. This change adapts code and tests so that "make check" passes once again. * src/scan-code.l: Quote like 'this', not like `this'. * src/scan-gram.l: Likewise. * src/symtab.c: Likewise. * tests/actions.at: Adjust tests to match. * tests/input.at: Likewise. * tests/named-refs.at: Likewise. * tests/output.at: Likewise. * tests/regression.at: Likewise. * lib/.gitignore: Regenerate. * m4/.gitignore: Likewise. 2012-01-23 Jim Meyering build: update gnulib and autoconf submodules to latest (cherry picked from commit 728415f885e5cb8e518c8576fa6e1f541e384130) 2012-01-23 Jim Meyering build: manually update bootstrap from gnulib, and adapt Updating to the latest bootstrap from gnulib involves more of a change than usual, and updating to the latest gnulib would involve its own set of challenges with the upcoming quoting changes, so we update bootstrap manually and separately. * bootstrap: Update from gnulib. * lib/Makefile.am: Initialize more variables to empty, so that gnulib.mk can append to them with "+=". * bootstrap.conf (gnulib_mk_hook): Remove. No longer honored. (gnulib_tool_option_extras): Generate gnulib.mk. 2012-01-23 Jim Meyering maint: include first * cfg.mk (exclude_file_name_regexp--sc_require_config_h_first): Exempt data/glr.c and data/yacc.c from the include-config.h-first requirement. 2012-01-23 Jim Meyering build: include from lib/yyerror.c * lib/yyerror.c: Include . 2012-01-23 Jim Meyering maint: list djgpp/subpipe.c in po/POTFILES.in * po/POTFILES.in: Add djgpp/subpipe.c. 2012-01-23 Jim Meyering maint: placate the space-TAB syntax-check * cfg.mk (exclude_file_name_regexp--sc_space_tab): Exempt tests/input.at and tests/c++.at, since they appear to use SP-TAB sequences deliberately. * OChangeLog: Remove space-before-TAB. 2012-01-23 Jim Meyering doc: correct typo: s/can not/cannot/ * doc/bison.texinfo (Bug Reports): s/can not/cannot/ And remove trailing blanks. 2012-01-22 Jim Meyering maint: get gpl-3.0 from gnulib * bootstrap.conf (gnulib_modules): Add gpl-3.0. * doc/gpl-3.0.texi: Remove from version control, now that we get it via gnulib. * doc/.gitignore: Ignore it.