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1#!/usr/bin/perl -w
2
3use strict;
4
5## Copyright (c) 1998 Michael Zucchi, All Rights Reserved        ##
6## Copyright (C) 2000, 1  Tim Waugh <twaugh@redhat.com>          ##
7## Copyright (C) 2001  Simon Huggins                             ##
8## Copyright (C) 2005-2008  Randy Dunlap                         ##
9## 								 ##
10## #define enhancements by Armin Kuster <akuster@mvista.com>	 ##
11## Copyright (c) 2000 MontaVista Software, Inc.			 ##
12## 								 ##
13## This software falls under the GNU General Public License.     ##
14## Please read the COPYING file for more information             ##
15
16# w.o. 03-11-2000: added the '-filelist' option.
17
18# 18/01/2001 - 	Cleanups
19# 		Functions prototyped as foo(void) same as foo()
20# 		Stop eval'ing where we don't need to.
21# -- huggie@earth.li
22
23# 27/06/2001 -  Allowed whitespace after initial "/**" and
24#               allowed comments before function declarations.
25# -- Christian Kreibich <ck@whoop.org>
26
27# Still to do:
28# 	- add perldoc documentation
29# 	- Look more closely at some of the scarier bits :)
30
31# 26/05/2001 - 	Support for separate source and object trees.
32#		Return error code.
33# 		Keith Owens <kaos@ocs.com.au>
34
35# 23/09/2001 - Added support for typedefs, structs, enums and unions
36#              Support for Context section; can be terminated using empty line
37#              Small fixes (like spaces vs. \s in regex)
38# -- Tim Jansen <tim@tjansen.de>
39
40
41#
42# This will read a 'c' file and scan for embedded comments in the
43# style of gnome comments (+minor extensions - see below).
44#
45
46# Note: This only supports 'c'.
47
48# usage:
49# kernel-doc [ -docbook | -html | -text | -man ] [ -no-doc-sections ]
50#           [ -function funcname [ -function funcname ...] ] c file(s)s > outputfile
51# or
52#           [ -nofunction funcname [ -function funcname ...] ] c file(s)s > outputfile
53#
54#  Set output format using one of -docbook -html -text or -man.  Default is man.
55#
56#  -no-doc-sections
57#	Do not output DOC: sections
58#
59#  -function funcname
60#	If set, then only generate documentation for the given function(s) or
61#	DOC: section titles.  All other functions and DOC: sections are ignored.
62#
63#  -nofunction funcname
64#	If set, then only generate documentation for the other function(s)/DOC:
65#	sections. Cannot be used together with -function (yes, that's a bug --
66#	perl hackers can fix it 8))
67#
68#  c files - list of 'c' files to process
69#
70#  All output goes to stdout, with errors to stderr.
71
72#
73# format of comments.
74# In the following table, (...)? signifies optional structure.
75#                         (...)* signifies 0 or more structure elements
76# /**
77#  * function_name(:)? (- short description)?
78# (* @parameterx: (description of parameter x)?)*
79# (* a blank line)?
80#  * (Description:)? (Description of function)?
81#  * (section header: (section description)? )*
82#  (*)?*/
83#
84# So .. the trivial example would be:
85#
86# /**
87#  * my_function
88#  **/
89#
90# If the Description: header tag is omitted, then there must be a blank line
91# after the last parameter specification.
92# e.g.
93# /**
94#  * my_function - does my stuff
95#  * @my_arg: its mine damnit
96#  *
97#  * Does my stuff explained.
98#  */
99#
100#  or, could also use:
101# /**
102#  * my_function - does my stuff
103#  * @my_arg: its mine damnit
104#  * Description: Does my stuff explained.
105#  */
106# etc.
107#
108# Beside functions you can also write documentation for structs, unions,
109# enums and typedefs. Instead of the function name you must write the name
110# of the declaration;  the struct/union/enum/typedef must always precede
111# the name. Nesting of declarations is not supported.
112# Use the argument mechanism to document members or constants.
113# e.g.
114# /**
115#  * struct my_struct - short description
116#  * @a: first member
117#  * @b: second member
118#  *
119#  * Longer description
120#  */
121# struct my_struct {
122#     int a;
123#     int b;
124# /* private: */
125#     int c;
126# };
127#
128# All descriptions can be multiline, except the short function description.
129#
130# You can also add additional sections. When documenting kernel functions you
131# should document the "Context:" of the function, e.g. whether the functions
132# can be called form interrupts. Unlike other sections you can end it with an
133# empty line.
134# Example-sections should contain the string EXAMPLE so that they are marked
135# appropriately in DocBook.
136#
137# Example:
138# /**
139#  * user_function - function that can only be called in user context
140#  * @a: some argument
141#  * Context: !in_interrupt()
142#  *
143#  * Some description
144#  * Example:
145#  *    user_function(22);
146#  */
147# ...
148#
149#
150# All descriptive text is further processed, scanning for the following special
151# patterns, which are highlighted appropriately.
152#
153# 'funcname()' - function
154# '$ENVVAR' - environmental variable
155# '&struct_name' - name of a structure (up to two words including 'struct')
156# '@parameter' - name of a parameter
157# '%CONST' - name of a constant.
158
159my $errors = 0;
160my $warnings = 0;
161my $anon_struct_union = 0;
162
163# match expressions used to find embedded type information
164my $type_constant = '\%([-_\w]+)';
165my $type_func = '(\w+)\(\)';
166my $type_param = '\@(\w+)';
167my $type_struct = '\&((struct\s*)*[_\w]+)';
168my $type_struct_xml = '\\&amp;((struct\s*)*[_\w]+)';
169my $type_env = '(\$\w+)';
170
171# Output conversion substitutions.
172#  One for each output format
173
174# these work fairly well
175my %highlights_html = ( $type_constant, "<i>\$1</i>",
176			$type_func, "<b>\$1</b>",
177			$type_struct_xml, "<i>\$1</i>",
178			$type_env, "<b><i>\$1</i></b>",
179			$type_param, "<tt><b>\$1</b></tt>" );
180my $local_lt = "\\\\\\\\lt:";
181my $local_gt = "\\\\\\\\gt:";
182my $blankline_html = $local_lt . "p" . $local_gt;	# was "<p>"
183
184# XML, docbook format
185my %highlights_xml = ( "([^=])\\\"([^\\\"<]+)\\\"", "\$1<quote>\$2</quote>",
186			$type_constant, "<constant>\$1</constant>",
187			$type_func, "<function>\$1</function>",
188			$type_struct_xml, "<structname>\$1</structname>",
189			$type_env, "<envar>\$1</envar>",
190			$type_param, "<parameter>\$1</parameter>" );
191my $blankline_xml = $local_lt . "/para" . $local_gt . $local_lt . "para" . $local_gt . "\n";
192
193# gnome, docbook format
194my %highlights_gnome = ( $type_constant, "<replaceable class=\"option\">\$1</replaceable>",
195			 $type_func, "<function>\$1</function>",
196			 $type_struct, "<structname>\$1</structname>",
197			 $type_env, "<envar>\$1</envar>",
198			 $type_param, "<parameter>\$1</parameter>" );
199my $blankline_gnome = "</para><para>\n";
200
201# these are pretty rough
202my %highlights_man = ( $type_constant, "\$1",
203		       $type_func, "\\\\fB\$1\\\\fP",
204		       $type_struct, "\\\\fI\$1\\\\fP",
205		       $type_param, "\\\\fI\$1\\\\fP" );
206my $blankline_man = "";
207
208# text-mode
209my %highlights_text = ( $type_constant, "\$1",
210			$type_func, "\$1",
211			$type_struct, "\$1",
212			$type_param, "\$1" );
213my $blankline_text = "";
214
215
216sub usage {
217    print "Usage: $0 [ -v ] [ -docbook | -html | -text | -man ] [ -no-doc-sections ]\n";
218    print "         [ -function funcname [ -function funcname ...] ]\n";
219    print "         [ -nofunction funcname [ -nofunction funcname ...] ]\n";
220    print "         c source file(s) > outputfile\n";
221    print "         -v : verbose output, more warnings & other info listed\n";
222    exit 1;
223}
224
225# read arguments
226if ($#ARGV==-1) {
227    usage();
228}
229
230my $verbose = 0;
231my $output_mode = "man";
232my $no_doc_sections = 0;
233my %highlights = %highlights_man;
234my $blankline = $blankline_man;
235my $modulename = "Kernel API";
236my $function_only = 0;
237my $man_date = ('January', 'February', 'March', 'April', 'May', 'June',
238		'July', 'August', 'September', 'October',
239		'November', 'December')[(localtime)[4]] .
240  " " . ((localtime)[5]+1900);
241
242# Essentially these are globals
243# They probably want to be tidied up made more localised or summat.
244# CAVEAT EMPTOR!  Some of the others I localised may not want to be which
245# could cause "use of undefined value" or other bugs.
246my ($function, %function_table,%parametertypes,$declaration_purpose);
247my ($type,$declaration_name,$return_type);
248my ($newsection,$newcontents,$prototype,$filelist, $brcount, %source_map);
249
250if (defined($ENV{'KBUILD_VERBOSE'})) {
251	$verbose = "$ENV{'KBUILD_VERBOSE'}";
252}
253
254# Generated docbook code is inserted in a template at a point where
255# docbook v3.1 requires a non-zero sequence of RefEntry's; see:
256# http://www.oasis-open.org/docbook/documentation/reference/html/refentry.html
257# We keep track of number of generated entries and generate a dummy
258# if needs be to ensure the expanded template can be postprocessed
259# into html.
260my $section_counter = 0;
261
262my $lineprefix="";
263
264# states
265# 0 - normal code
266# 1 - looking for function name
267# 2 - scanning field start.
268# 3 - scanning prototype.
269# 4 - documentation block
270my $state;
271my $in_doc_sect;
272
273#declaration types: can be
274# 'function', 'struct', 'union', 'enum', 'typedef'
275my $decl_type;
276
277my $doc_special = "\@\%\$\&";
278
279my $doc_start = '^/\*\*\s*$'; # Allow whitespace at end of comment start.
280my $doc_end = '\*/';
281my $doc_com = '\s*\*\s*';
282my $doc_decl = $doc_com.'(\w+)';
283my $doc_sect = $doc_com.'(['.$doc_special.']?[\w\s]+):(.*)';
284my $doc_content = $doc_com.'(.*)';
285my $doc_block = $doc_com.'DOC:\s*(.*)?';
286
287my %constants;
288my %parameterdescs;
289my @parameterlist;
290my %sections;
291my @sectionlist;
292my $sectcheck;
293my $struct_actual;
294
295my $contents = "";
296my $section_default = "Description";	# default section
297my $section_intro = "Introduction";
298my $section = $section_default;
299my $section_context = "Context";
300
301my $undescribed = "-- undescribed --";
302
303reset_state();
304
305while ($ARGV[0] =~ m/^-(.*)/) {
306    my $cmd = shift @ARGV;
307    if ($cmd eq "-html") {
308	$output_mode = "html";
309	%highlights = %highlights_html;
310	$blankline = $blankline_html;
311    } elsif ($cmd eq "-man") {
312	$output_mode = "man";
313	%highlights = %highlights_man;
314	$blankline = $blankline_man;
315    } elsif ($cmd eq "-text") {
316	$output_mode = "text";
317	%highlights = %highlights_text;
318	$blankline = $blankline_text;
319    } elsif ($cmd eq "-docbook") {
320	$output_mode = "xml";
321	%highlights = %highlights_xml;
322	$blankline = $blankline_xml;
323    } elsif ($cmd eq "-gnome") {
324	$output_mode = "gnome";
325	%highlights = %highlights_gnome;
326	$blankline = $blankline_gnome;
327    } elsif ($cmd eq "-module") { # not needed for XML, inherits from calling document
328	$modulename = shift @ARGV;
329    } elsif ($cmd eq "-function") { # to only output specific functions
330	$function_only = 1;
331	$function = shift @ARGV;
332	$function_table{$function} = 1;
333    } elsif ($cmd eq "-nofunction") { # to only output specific functions
334	$function_only = 2;
335	$function = shift @ARGV;
336	$function_table{$function} = 1;
337    } elsif ($cmd eq "-v") {
338	$verbose = 1;
339    } elsif (($cmd eq "-h") || ($cmd eq "--help")) {
340	usage();
341    } elsif ($cmd eq '-filelist') {
342	    $filelist = shift @ARGV;
343    } elsif ($cmd eq '-no-doc-sections') {
344	    $no_doc_sections = 1;
345    }
346}
347
348# get kernel version from env
349sub get_kernel_version() {
350    my $version = 'unknown kernel version';
351
352    if (defined($ENV{'KERNELVERSION'})) {
353	$version = $ENV{'KERNELVERSION'};
354    }
355    return $version;
356}
357my $kernelversion = get_kernel_version();
358
359# generate a sequence of code that will splice in highlighting information
360# using the s// operator.
361my $dohighlight = "";
362foreach my $pattern (keys %highlights) {
363#   print STDERR "scanning pattern:$pattern, highlight:($highlights{$pattern})\n";
364    $dohighlight .=  "\$contents =~ s:$pattern:$highlights{$pattern}:gs;\n";
365}
366
367##
368# dumps section contents to arrays/hashes intended for that purpose.
369#
370sub dump_section {
371    my $file = shift;
372    my $name = shift;
373    my $contents = join "\n", @_;
374
375    if ($name =~ m/$type_constant/) {
376	$name = $1;
377#	print STDERR "constant section '$1' = '$contents'\n";
378	$constants{$name} = $contents;
379    } elsif ($name =~ m/$type_param/) {
380#	print STDERR "parameter def '$1' = '$contents'\n";
381	$name = $1;
382	$parameterdescs{$name} = $contents;
383	$sectcheck = $sectcheck . $name . " ";
384    } elsif ($name eq "@\.\.\.") {
385#	print STDERR "parameter def '...' = '$contents'\n";
386	$name = "...";
387	$parameterdescs{$name} = $contents;
388	$sectcheck = $sectcheck . $name . " ";
389    } else {
390#	print STDERR "other section '$name' = '$contents'\n";
391	if (defined($sections{$name}) && ($sections{$name} ne "")) {
392		print STDERR "Error(${file}:$.): duplicate section name '$name'\n";
393		++$errors;
394	}
395	$sections{$name} = $contents;
396	push @sectionlist, $name;
397    }
398}
399
400##
401# dump DOC: section after checking that it should go out
402#
403sub dump_doc_section {
404    my $file = shift;
405    my $name = shift;
406    my $contents = join "\n", @_;
407
408    if ($no_doc_sections) {
409        return;
410    }
411
412    if (($function_only == 0) ||
413	( $function_only == 1 && defined($function_table{$name})) ||
414	( $function_only == 2 && !defined($function_table{$name})))
415    {
416	dump_section($file, $name, $contents);
417	output_blockhead({'sectionlist' => \@sectionlist,
418			  'sections' => \%sections,
419			  'module' => $modulename,
420			  'content-only' => ($function_only != 0), });
421    }
422}
423
424##
425# output function
426#
427# parameterdescs, a hash.
428#  function => "function name"
429#  parameterlist => @list of parameters
430#  parameterdescs => %parameter descriptions
431#  sectionlist => @list of sections
432#  sections => %section descriptions
433#
434
435sub output_highlight {
436    my $contents = join "\n",@_;
437    my $line;
438
439#   DEBUG
440#   if (!defined $contents) {
441#	use Carp;
442#	confess "output_highlight got called with no args?\n";
443#   }
444
445    if ($output_mode eq "html" || $output_mode eq "xml") {
446	$contents = local_unescape($contents);
447	# convert data read & converted thru xml_escape() into &xyz; format:
448	$contents =~ s/\\\\\\/&/g;
449    }
450#   print STDERR "contents b4:$contents\n";
451    eval $dohighlight;
452    die $@ if $@;
453#   print STDERR "contents af:$contents\n";
454
455    foreach $line (split "\n", $contents) {
456	if ($line eq ""){
457	    print $lineprefix, local_unescape($blankline);
458	} else {
459	    $line =~ s/\\\\\\/\&/g;
460	    if ($output_mode eq "man" && substr($line, 0, 1) eq ".") {
461		print "\\&$line";
462	    } else {
463		print $lineprefix, $line;
464	    }
465	}
466	print "\n";
467    }
468}
469
470#output sections in html
471sub output_section_html(%) {
472    my %args = %{$_[0]};
473    my $section;
474
475    foreach $section (@{$args{'sectionlist'}}) {
476	print "<h3>$section</h3>\n";
477	print "<blockquote>\n";
478	output_highlight($args{'sections'}{$section});
479	print "</blockquote>\n";
480    }
481}
482
483# output enum in html
484sub output_enum_html(%) {
485    my %args = %{$_[0]};
486    my ($parameter);
487    my $count;
488    print "<h2>enum ".$args{'enum'}."</h2>\n";
489
490    print "<b>enum ".$args{'enum'}."</b> {<br>\n";
491    $count = 0;
492    foreach $parameter (@{$args{'parameterlist'}}) {
493	print " <b>".$parameter."</b>";
494	if ($count != $#{$args{'parameterlist'}}) {
495	    $count++;
496	    print ",\n";
497	}
498	print "<br>";
499    }
500    print "};<br>\n";
501
502    print "<h3>Constants</h3>\n";
503    print "<dl>\n";
504    foreach $parameter (@{$args{'parameterlist'}}) {
505	print "<dt><b>".$parameter."</b>\n";
506	print "<dd>";
507	output_highlight($args{'parameterdescs'}{$parameter});
508    }
509    print "</dl>\n";
510    output_section_html(@_);
511    print "<hr>\n";
512}
513
514# output typedef in html
515sub output_typedef_html(%) {
516    my %args = %{$_[0]};
517    my ($parameter);
518    my $count;
519    print "<h2>typedef ".$args{'typedef'}."</h2>\n";
520
521    print "<b>typedef ".$args{'typedef'}."</b>\n";
522    output_section_html(@_);
523    print "<hr>\n";
524}
525
526# output struct in html
527sub output_struct_html(%) {
528    my %args = %{$_[0]};
529    my ($parameter);
530
531    print "<h2>".$args{'type'}." ".$args{'struct'}. " - " .$args{'purpose'}."</h2>\n";
532    print "<b>".$args{'type'}." ".$args{'struct'}."</b> {<br>\n";
533    foreach $parameter (@{$args{'parameterlist'}}) {
534	if ($parameter =~ /^#/) {
535		print "$parameter<br>\n";
536		next;
537	}
538	my $parameter_name = $parameter;
539	$parameter_name =~ s/\[.*//;
540
541	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
542	$type = $args{'parametertypes'}{$parameter};
543	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
544	    # pointer-to-function
545	    print "&nbsp; &nbsp; <i>$1</i><b>$parameter</b>) <i>($2)</i>;<br>\n";
546	} elsif ($type =~ m/^(.*?)\s*(:.*)/) {
547	    # bitfield
548	    print "&nbsp; &nbsp; <i>$1</i> <b>$parameter</b>$2;<br>\n";
549	} else {
550	    print "&nbsp; &nbsp; <i>$type</i> <b>$parameter</b>;<br>\n";
551	}
552    }
553    print "};<br>\n";
554
555    print "<h3>Members</h3>\n";
556    print "<dl>\n";
557    foreach $parameter (@{$args{'parameterlist'}}) {
558	($parameter =~ /^#/) && next;
559
560	my $parameter_name = $parameter;
561	$parameter_name =~ s/\[.*//;
562
563	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
564	print "<dt><b>".$parameter."</b>\n";
565	print "<dd>";
566	output_highlight($args{'parameterdescs'}{$parameter_name});
567    }
568    print "</dl>\n";
569    output_section_html(@_);
570    print "<hr>\n";
571}
572
573# output function in html
574sub output_function_html(%) {
575    my %args = %{$_[0]};
576    my ($parameter, $section);
577    my $count;
578
579    print "<h2>" .$args{'function'}." - ".$args{'purpose'}."</h2>\n";
580    print "<i>".$args{'functiontype'}."</i>\n";
581    print "<b>".$args{'function'}."</b>\n";
582    print "(";
583    $count = 0;
584    foreach $parameter (@{$args{'parameterlist'}}) {
585	$type = $args{'parametertypes'}{$parameter};
586	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
587	    # pointer-to-function
588	    print "<i>$1</i><b>$parameter</b>) <i>($2)</i>";
589	} else {
590	    print "<i>".$type."</i> <b>".$parameter."</b>";
591	}
592	if ($count != $#{$args{'parameterlist'}}) {
593	    $count++;
594	    print ",\n";
595	}
596    }
597    print ")\n";
598
599    print "<h3>Arguments</h3>\n";
600    print "<dl>\n";
601    foreach $parameter (@{$args{'parameterlist'}}) {
602	my $parameter_name = $parameter;
603	$parameter_name =~ s/\[.*//;
604
605	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
606	print "<dt><b>".$parameter."</b>\n";
607	print "<dd>";
608	output_highlight($args{'parameterdescs'}{$parameter_name});
609    }
610    print "</dl>\n";
611    output_section_html(@_);
612    print "<hr>\n";
613}
614
615# output DOC: block header in html
616sub output_blockhead_html(%) {
617    my %args = %{$_[0]};
618    my ($parameter, $section);
619    my $count;
620
621    foreach $section (@{$args{'sectionlist'}}) {
622	print "<h3>$section</h3>\n";
623	print "<ul>\n";
624	output_highlight($args{'sections'}{$section});
625	print "</ul>\n";
626    }
627    print "<hr>\n";
628}
629
630sub output_section_xml(%) {
631    my %args = %{$_[0]};
632    my $section;
633    # print out each section
634    $lineprefix="   ";
635    foreach $section (@{$args{'sectionlist'}}) {
636	print "<refsect1>\n";
637	print "<title>$section</title>\n";
638	if ($section =~ m/EXAMPLE/i) {
639	    print "<informalexample><programlisting>\n";
640	} else {
641	    print "<para>\n";
642	}
643	output_highlight($args{'sections'}{$section});
644	if ($section =~ m/EXAMPLE/i) {
645	    print "</programlisting></informalexample>\n";
646	} else {
647	    print "</para>\n";
648	}
649	print "</refsect1>\n";
650    }
651}
652
653# output function in XML DocBook
654sub output_function_xml(%) {
655    my %args = %{$_[0]};
656    my ($parameter, $section);
657    my $count;
658    my $id;
659
660    $id = "API-".$args{'function'};
661    $id =~ s/[^A-Za-z0-9]/-/g;
662
663    print "<refentry id=\"$id\">\n";
664    print "<refentryinfo>\n";
665    print " <title>LINUX</title>\n";
666    print " <productname>Kernel Hackers Manual</productname>\n";
667    print " <date>$man_date</date>\n";
668    print "</refentryinfo>\n";
669    print "<refmeta>\n";
670    print " <refentrytitle><phrase>".$args{'function'}."</phrase></refentrytitle>\n";
671    print " <manvolnum>9</manvolnum>\n";
672    print " <refmiscinfo class=\"version\">" . $kernelversion . "</refmiscinfo>\n";
673    print "</refmeta>\n";
674    print "<refnamediv>\n";
675    print " <refname>".$args{'function'}."</refname>\n";
676    print " <refpurpose>\n";
677    print "  ";
678    output_highlight ($args{'purpose'});
679    print " </refpurpose>\n";
680    print "</refnamediv>\n";
681
682    print "<refsynopsisdiv>\n";
683    print " <title>Synopsis</title>\n";
684    print "  <funcsynopsis><funcprototype>\n";
685    print "   <funcdef>".$args{'functiontype'}." ";
686    print "<function>".$args{'function'}." </function></funcdef>\n";
687
688    $count = 0;
689    if ($#{$args{'parameterlist'}} >= 0) {
690	foreach $parameter (@{$args{'parameterlist'}}) {
691	    $type = $args{'parametertypes'}{$parameter};
692	    if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
693		# pointer-to-function
694		print "   <paramdef>$1<parameter>$parameter</parameter>)\n";
695		print "     <funcparams>$2</funcparams></paramdef>\n";
696	    } else {
697		print "   <paramdef>".$type;
698		print " <parameter>$parameter</parameter></paramdef>\n";
699	    }
700	}
701    } else {
702	print "  <void/>\n";
703    }
704    print "  </funcprototype></funcsynopsis>\n";
705    print "</refsynopsisdiv>\n";
706
707    # print parameters
708    print "<refsect1>\n <title>Arguments</title>\n";
709    if ($#{$args{'parameterlist'}} >= 0) {
710	print " <variablelist>\n";
711	foreach $parameter (@{$args{'parameterlist'}}) {
712	    my $parameter_name = $parameter;
713	    $parameter_name =~ s/\[.*//;
714
715	    print "  <varlistentry>\n   <term><parameter>$parameter</parameter></term>\n";
716	    print "   <listitem>\n    <para>\n";
717	    $lineprefix="     ";
718	    output_highlight($args{'parameterdescs'}{$parameter_name});
719	    print "    </para>\n   </listitem>\n  </varlistentry>\n";
720	}
721	print " </variablelist>\n";
722    } else {
723	print " <para>\n  None\n </para>\n";
724    }
725    print "</refsect1>\n";
726
727    output_section_xml(@_);
728    print "</refentry>\n\n";
729}
730
731# output struct in XML DocBook
732sub output_struct_xml(%) {
733    my %args = %{$_[0]};
734    my ($parameter, $section);
735    my $id;
736
737    $id = "API-struct-".$args{'struct'};
738    $id =~ s/[^A-Za-z0-9]/-/g;
739
740    print "<refentry id=\"$id\">\n";
741    print "<refentryinfo>\n";
742    print " <title>LINUX</title>\n";
743    print " <productname>Kernel Hackers Manual</productname>\n";
744    print " <date>$man_date</date>\n";
745    print "</refentryinfo>\n";
746    print "<refmeta>\n";
747    print " <refentrytitle><phrase>".$args{'type'}." ".$args{'struct'}."</phrase></refentrytitle>\n";
748    print " <manvolnum>9</manvolnum>\n";
749    print " <refmiscinfo class=\"version\">" . $kernelversion . "</refmiscinfo>\n";
750    print "</refmeta>\n";
751    print "<refnamediv>\n";
752    print " <refname>".$args{'type'}." ".$args{'struct'}."</refname>\n";
753    print " <refpurpose>\n";
754    print "  ";
755    output_highlight ($args{'purpose'});
756    print " </refpurpose>\n";
757    print "</refnamediv>\n";
758
759    print "<refsynopsisdiv>\n";
760    print " <title>Synopsis</title>\n";
761    print "  <programlisting>\n";
762    print $args{'type'}." ".$args{'struct'}." {\n";
763    foreach $parameter (@{$args{'parameterlist'}}) {
764	if ($parameter =~ /^#/) {
765	    print "$parameter\n";
766	    next;
767	}
768
769	my $parameter_name = $parameter;
770	$parameter_name =~ s/\[.*//;
771
772	defined($args{'parameterdescs'}{$parameter_name}) || next;
773	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
774	$type = $args{'parametertypes'}{$parameter};
775	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
776	    # pointer-to-function
777	    print "  $1 $parameter) ($2);\n";
778	} elsif ($type =~ m/^(.*?)\s*(:.*)/) {
779	    # bitfield
780	    print "  $1 $parameter$2;\n";
781	} else {
782	    print "  ".$type." ".$parameter.";\n";
783	}
784    }
785    print "};";
786    print "  </programlisting>\n";
787    print "</refsynopsisdiv>\n";
788
789    print " <refsect1>\n";
790    print "  <title>Members</title>\n";
791
792    if ($#{$args{'parameterlist'}} >= 0) {
793    print "  <variablelist>\n";
794    foreach $parameter (@{$args{'parameterlist'}}) {
795      ($parameter =~ /^#/) && next;
796
797      my $parameter_name = $parameter;
798      $parameter_name =~ s/\[.*//;
799
800      defined($args{'parameterdescs'}{$parameter_name}) || next;
801      ($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
802      print "    <varlistentry>";
803      print "      <term>$parameter</term>\n";
804      print "      <listitem><para>\n";
805      output_highlight($args{'parameterdescs'}{$parameter_name});
806      print "      </para></listitem>\n";
807      print "    </varlistentry>\n";
808    }
809    print "  </variablelist>\n";
810    } else {
811	print " <para>\n  None\n </para>\n";
812    }
813    print " </refsect1>\n";
814
815    output_section_xml(@_);
816
817    print "</refentry>\n\n";
818}
819
820# output enum in XML DocBook
821sub output_enum_xml(%) {
822    my %args = %{$_[0]};
823    my ($parameter, $section);
824    my $count;
825    my $id;
826
827    $id = "API-enum-".$args{'enum'};
828    $id =~ s/[^A-Za-z0-9]/-/g;
829
830    print "<refentry id=\"$id\">\n";
831    print "<refentryinfo>\n";
832    print " <title>LINUX</title>\n";
833    print " <productname>Kernel Hackers Manual</productname>\n";
834    print " <date>$man_date</date>\n";
835    print "</refentryinfo>\n";
836    print "<refmeta>\n";
837    print " <refentrytitle><phrase>enum ".$args{'enum'}."</phrase></refentrytitle>\n";
838    print " <manvolnum>9</manvolnum>\n";
839    print " <refmiscinfo class=\"version\">" . $kernelversion . "</refmiscinfo>\n";
840    print "</refmeta>\n";
841    print "<refnamediv>\n";
842    print " <refname>enum ".$args{'enum'}."</refname>\n";
843    print " <refpurpose>\n";
844    print "  ";
845    output_highlight ($args{'purpose'});
846    print " </refpurpose>\n";
847    print "</refnamediv>\n";
848
849    print "<refsynopsisdiv>\n";
850    print " <title>Synopsis</title>\n";
851    print "  <programlisting>\n";
852    print "enum ".$args{'enum'}." {\n";
853    $count = 0;
854    foreach $parameter (@{$args{'parameterlist'}}) {
855	print "  $parameter";
856	if ($count != $#{$args{'parameterlist'}}) {
857	    $count++;
858	    print ",";
859	}
860	print "\n";
861    }
862    print "};";
863    print "  </programlisting>\n";
864    print "</refsynopsisdiv>\n";
865
866    print "<refsect1>\n";
867    print " <title>Constants</title>\n";
868    print "  <variablelist>\n";
869    foreach $parameter (@{$args{'parameterlist'}}) {
870      my $parameter_name = $parameter;
871      $parameter_name =~ s/\[.*//;
872
873      print "    <varlistentry>";
874      print "      <term>$parameter</term>\n";
875      print "      <listitem><para>\n";
876      output_highlight($args{'parameterdescs'}{$parameter_name});
877      print "      </para></listitem>\n";
878      print "    </varlistentry>\n";
879    }
880    print "  </variablelist>\n";
881    print "</refsect1>\n";
882
883    output_section_xml(@_);
884
885    print "</refentry>\n\n";
886}
887
888# output typedef in XML DocBook
889sub output_typedef_xml(%) {
890    my %args = %{$_[0]};
891    my ($parameter, $section);
892    my $id;
893
894    $id = "API-typedef-".$args{'typedef'};
895    $id =~ s/[^A-Za-z0-9]/-/g;
896
897    print "<refentry id=\"$id\">\n";
898    print "<refentryinfo>\n";
899    print " <title>LINUX</title>\n";
900    print " <productname>Kernel Hackers Manual</productname>\n";
901    print " <date>$man_date</date>\n";
902    print "</refentryinfo>\n";
903    print "<refmeta>\n";
904    print " <refentrytitle><phrase>typedef ".$args{'typedef'}."</phrase></refentrytitle>\n";
905    print " <manvolnum>9</manvolnum>\n";
906    print "</refmeta>\n";
907    print "<refnamediv>\n";
908    print " <refname>typedef ".$args{'typedef'}."</refname>\n";
909    print " <refpurpose>\n";
910    print "  ";
911    output_highlight ($args{'purpose'});
912    print " </refpurpose>\n";
913    print "</refnamediv>\n";
914
915    print "<refsynopsisdiv>\n";
916    print " <title>Synopsis</title>\n";
917    print "  <synopsis>typedef ".$args{'typedef'}.";</synopsis>\n";
918    print "</refsynopsisdiv>\n";
919
920    output_section_xml(@_);
921
922    print "</refentry>\n\n";
923}
924
925# output in XML DocBook
926sub output_blockhead_xml(%) {
927    my %args = %{$_[0]};
928    my ($parameter, $section);
929    my $count;
930
931    my $id = $args{'module'};
932    $id =~ s/[^A-Za-z0-9]/-/g;
933
934    # print out each section
935    $lineprefix="   ";
936    foreach $section (@{$args{'sectionlist'}}) {
937	if (!$args{'content-only'}) {
938		print "<refsect1>\n <title>$section</title>\n";
939	}
940	if ($section =~ m/EXAMPLE/i) {
941	    print "<example><para>\n";
942	} else {
943	    print "<para>\n";
944	}
945	output_highlight($args{'sections'}{$section});
946	if ($section =~ m/EXAMPLE/i) {
947	    print "</para></example>\n";
948	} else {
949	    print "</para>";
950	}
951	if (!$args{'content-only'}) {
952		print "\n</refsect1>\n";
953	}
954    }
955
956    print "\n\n";
957}
958
959# output in XML DocBook
960sub output_function_gnome {
961    my %args = %{$_[0]};
962    my ($parameter, $section);
963    my $count;
964    my $id;
965
966    $id = $args{'module'}."-".$args{'function'};
967    $id =~ s/[^A-Za-z0-9]/-/g;
968
969    print "<sect2>\n";
970    print " <title id=\"$id\">".$args{'function'}."</title>\n";
971
972    print "  <funcsynopsis>\n";
973    print "   <funcdef>".$args{'functiontype'}." ";
974    print "<function>".$args{'function'}." ";
975    print "</function></funcdef>\n";
976
977    $count = 0;
978    if ($#{$args{'parameterlist'}} >= 0) {
979	foreach $parameter (@{$args{'parameterlist'}}) {
980	    $type = $args{'parametertypes'}{$parameter};
981	    if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
982		# pointer-to-function
983		print "   <paramdef>$1 <parameter>$parameter</parameter>)\n";
984		print "     <funcparams>$2</funcparams></paramdef>\n";
985	    } else {
986		print "   <paramdef>".$type;
987		print " <parameter>$parameter</parameter></paramdef>\n";
988	    }
989	}
990    } else {
991	print "  <void>\n";
992    }
993    print "  </funcsynopsis>\n";
994    if ($#{$args{'parameterlist'}} >= 0) {
995	print " <informaltable pgwide=\"1\" frame=\"none\" role=\"params\">\n";
996	print "<tgroup cols=\"2\">\n";
997	print "<colspec colwidth=\"2*\">\n";
998	print "<colspec colwidth=\"8*\">\n";
999	print "<tbody>\n";
1000	foreach $parameter (@{$args{'parameterlist'}}) {
1001	    my $parameter_name = $parameter;
1002	    $parameter_name =~ s/\[.*//;
1003
1004	    print "  <row><entry align=\"right\"><parameter>$parameter</parameter></entry>\n";
1005	    print "   <entry>\n";
1006	    $lineprefix="     ";
1007	    output_highlight($args{'parameterdescs'}{$parameter_name});
1008	    print "    </entry></row>\n";
1009	}
1010	print " </tbody></tgroup></informaltable>\n";
1011    } else {
1012	print " <para>\n  None\n </para>\n";
1013    }
1014
1015    # print out each section
1016    $lineprefix="   ";
1017    foreach $section (@{$args{'sectionlist'}}) {
1018	print "<simplesect>\n <title>$section</title>\n";
1019	if ($section =~ m/EXAMPLE/i) {
1020	    print "<example><programlisting>\n";
1021	} else {
1022	}
1023	print "<para>\n";
1024	output_highlight($args{'sections'}{$section});
1025	print "</para>\n";
1026	if ($section =~ m/EXAMPLE/i) {
1027	    print "</programlisting></example>\n";
1028	} else {
1029	}
1030	print " </simplesect>\n";
1031    }
1032
1033    print "</sect2>\n\n";
1034}
1035
1036##
1037# output function in man
1038sub output_function_man(%) {
1039    my %args = %{$_[0]};
1040    my ($parameter, $section);
1041    my $count;
1042
1043    print ".TH \"$args{'function'}\" 9 \"$args{'function'}\" \"$man_date\" \"Kernel Hacker's Manual\" LINUX\n";
1044
1045    print ".SH NAME\n";
1046    print $args{'function'}." \\- ".$args{'purpose'}."\n";
1047
1048    print ".SH SYNOPSIS\n";
1049    if ($args{'functiontype'} ne "") {
1050	print ".B \"".$args{'functiontype'}."\" ".$args{'function'}."\n";
1051    } else {
1052	print ".B \"".$args{'function'}."\n";
1053    }
1054    $count = 0;
1055    my $parenth = "(";
1056    my $post = ",";
1057    foreach my $parameter (@{$args{'parameterlist'}}) {
1058	if ($count == $#{$args{'parameterlist'}}) {
1059	    $post = ");";
1060	}
1061	$type = $args{'parametertypes'}{$parameter};
1062	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1063	    # pointer-to-function
1064	    print ".BI \"".$parenth.$1."\" ".$parameter." \") (".$2.")".$post."\"\n";
1065	} else {
1066	    $type =~ s/([^\*])$/$1 /;
1067	    print ".BI \"".$parenth.$type."\" ".$parameter." \"".$post."\"\n";
1068	}
1069	$count++;
1070	$parenth = "";
1071    }
1072
1073    print ".SH ARGUMENTS\n";
1074    foreach $parameter (@{$args{'parameterlist'}}) {
1075	my $parameter_name = $parameter;
1076	$parameter_name =~ s/\[.*//;
1077
1078	print ".IP \"".$parameter."\" 12\n";
1079	output_highlight($args{'parameterdescs'}{$parameter_name});
1080    }
1081    foreach $section (@{$args{'sectionlist'}}) {
1082	print ".SH \"", uc $section, "\"\n";
1083	output_highlight($args{'sections'}{$section});
1084    }
1085}
1086
1087##
1088# output enum in man
1089sub output_enum_man(%) {
1090    my %args = %{$_[0]};
1091    my ($parameter, $section);
1092    my $count;
1093
1094    print ".TH \"$args{'module'}\" 9 \"enum $args{'enum'}\" \"$man_date\" \"API Manual\" LINUX\n";
1095
1096    print ".SH NAME\n";
1097    print "enum ".$args{'enum'}." \\- ".$args{'purpose'}."\n";
1098
1099    print ".SH SYNOPSIS\n";
1100    print "enum ".$args{'enum'}." {\n";
1101    $count = 0;
1102    foreach my $parameter (@{$args{'parameterlist'}}) {
1103	print ".br\n.BI \"    $parameter\"\n";
1104	if ($count == $#{$args{'parameterlist'}}) {
1105	    print "\n};\n";
1106	    last;
1107	}
1108	else {
1109	    print ", \n.br\n";
1110	}
1111	$count++;
1112    }
1113
1114    print ".SH Constants\n";
1115    foreach $parameter (@{$args{'parameterlist'}}) {
1116	my $parameter_name = $parameter;
1117	$parameter_name =~ s/\[.*//;
1118
1119	print ".IP \"".$parameter."\" 12\n";
1120	output_highlight($args{'parameterdescs'}{$parameter_name});
1121    }
1122    foreach $section (@{$args{'sectionlist'}}) {
1123	print ".SH \"$section\"\n";
1124	output_highlight($args{'sections'}{$section});
1125    }
1126}
1127
1128##
1129# output struct in man
1130sub output_struct_man(%) {
1131    my %args = %{$_[0]};
1132    my ($parameter, $section);
1133
1134    print ".TH \"$args{'module'}\" 9 \"".$args{'type'}." ".$args{'struct'}."\" \"$man_date\" \"API Manual\" LINUX\n";
1135
1136    print ".SH NAME\n";
1137    print $args{'type'}." ".$args{'struct'}." \\- ".$args{'purpose'}."\n";
1138
1139    print ".SH SYNOPSIS\n";
1140    print $args{'type'}." ".$args{'struct'}." {\n.br\n";
1141
1142    foreach my $parameter (@{$args{'parameterlist'}}) {
1143	if ($parameter =~ /^#/) {
1144	    print ".BI \"$parameter\"\n.br\n";
1145	    next;
1146	}
1147	my $parameter_name = $parameter;
1148	$parameter_name =~ s/\[.*//;
1149
1150	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1151	$type = $args{'parametertypes'}{$parameter};
1152	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1153	    # pointer-to-function
1154	    print ".BI \"    ".$1."\" ".$parameter." \") (".$2.")"."\"\n;\n";
1155	} elsif ($type =~ m/^(.*?)\s*(:.*)/) {
1156	    # bitfield
1157	    print ".BI \"    ".$1."\ \" ".$parameter.$2." \""."\"\n;\n";
1158	} else {
1159	    $type =~ s/([^\*])$/$1 /;
1160	    print ".BI \"    ".$type."\" ".$parameter." \""."\"\n;\n";
1161	}
1162	print "\n.br\n";
1163    }
1164    print "};\n.br\n";
1165
1166    print ".SH Members\n";
1167    foreach $parameter (@{$args{'parameterlist'}}) {
1168	($parameter =~ /^#/) && next;
1169
1170	my $parameter_name = $parameter;
1171	$parameter_name =~ s/\[.*//;
1172
1173	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1174	print ".IP \"".$parameter."\" 12\n";
1175	output_highlight($args{'parameterdescs'}{$parameter_name});
1176    }
1177    foreach $section (@{$args{'sectionlist'}}) {
1178	print ".SH \"$section\"\n";
1179	output_highlight($args{'sections'}{$section});
1180    }
1181}
1182
1183##
1184# output typedef in man
1185sub output_typedef_man(%) {
1186    my %args = %{$_[0]};
1187    my ($parameter, $section);
1188
1189    print ".TH \"$args{'module'}\" 9 \"$args{'typedef'}\" \"$man_date\" \"API Manual\" LINUX\n";
1190
1191    print ".SH NAME\n";
1192    print "typedef ".$args{'typedef'}." \\- ".$args{'purpose'}."\n";
1193
1194    foreach $section (@{$args{'sectionlist'}}) {
1195	print ".SH \"$section\"\n";
1196	output_highlight($args{'sections'}{$section});
1197    }
1198}
1199
1200sub output_blockhead_man(%) {
1201    my %args = %{$_[0]};
1202    my ($parameter, $section);
1203    my $count;
1204
1205    print ".TH \"$args{'module'}\" 9 \"$args{'module'}\" \"$man_date\" \"API Manual\" LINUX\n";
1206
1207    foreach $section (@{$args{'sectionlist'}}) {
1208	print ".SH \"$section\"\n";
1209	output_highlight($args{'sections'}{$section});
1210    }
1211}
1212
1213##
1214# output in text
1215sub output_function_text(%) {
1216    my %args = %{$_[0]};
1217    my ($parameter, $section);
1218    my $start;
1219
1220    print "Name:\n\n";
1221    print $args{'function'}." - ".$args{'purpose'}."\n";
1222
1223    print "\nSynopsis:\n\n";
1224    if ($args{'functiontype'} ne "") {
1225	$start = $args{'functiontype'}." ".$args{'function'}." (";
1226    } else {
1227	$start = $args{'function'}." (";
1228    }
1229    print $start;
1230
1231    my $count = 0;
1232    foreach my $parameter (@{$args{'parameterlist'}}) {
1233	$type = $args{'parametertypes'}{$parameter};
1234	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1235	    # pointer-to-function
1236	    print $1.$parameter.") (".$2;
1237	} else {
1238	    print $type." ".$parameter;
1239	}
1240	if ($count != $#{$args{'parameterlist'}}) {
1241	    $count++;
1242	    print ",\n";
1243	    print " " x length($start);
1244	} else {
1245	    print ");\n\n";
1246	}
1247    }
1248
1249    print "Arguments:\n\n";
1250    foreach $parameter (@{$args{'parameterlist'}}) {
1251	my $parameter_name = $parameter;
1252	$parameter_name =~ s/\[.*//;
1253
1254	print $parameter."\n\t".$args{'parameterdescs'}{$parameter_name}."\n";
1255    }
1256    output_section_text(@_);
1257}
1258
1259#output sections in text
1260sub output_section_text(%) {
1261    my %args = %{$_[0]};
1262    my $section;
1263
1264    print "\n";
1265    foreach $section (@{$args{'sectionlist'}}) {
1266	print "$section:\n\n";
1267	output_highlight($args{'sections'}{$section});
1268    }
1269    print "\n\n";
1270}
1271
1272# output enum in text
1273sub output_enum_text(%) {
1274    my %args = %{$_[0]};
1275    my ($parameter);
1276    my $count;
1277    print "Enum:\n\n";
1278
1279    print "enum ".$args{'enum'}." - ".$args{'purpose'}."\n\n";
1280    print "enum ".$args{'enum'}." {\n";
1281    $count = 0;
1282    foreach $parameter (@{$args{'parameterlist'}}) {
1283	print "\t$parameter";
1284	if ($count != $#{$args{'parameterlist'}}) {
1285	    $count++;
1286	    print ",";
1287	}
1288	print "\n";
1289    }
1290    print "};\n\n";
1291
1292    print "Constants:\n\n";
1293    foreach $parameter (@{$args{'parameterlist'}}) {
1294	print "$parameter\n\t";
1295	print $args{'parameterdescs'}{$parameter}."\n";
1296    }
1297
1298    output_section_text(@_);
1299}
1300
1301# output typedef in text
1302sub output_typedef_text(%) {
1303    my %args = %{$_[0]};
1304    my ($parameter);
1305    my $count;
1306    print "Typedef:\n\n";
1307
1308    print "typedef ".$args{'typedef'}." - ".$args{'purpose'}."\n";
1309    output_section_text(@_);
1310}
1311
1312# output struct as text
1313sub output_struct_text(%) {
1314    my %args = %{$_[0]};
1315    my ($parameter);
1316
1317    print $args{'type'}." ".$args{'struct'}." - ".$args{'purpose'}."\n\n";
1318    print $args{'type'}." ".$args{'struct'}." {\n";
1319    foreach $parameter (@{$args{'parameterlist'}}) {
1320	if ($parameter =~ /^#/) {
1321	    print "$parameter\n";
1322	    next;
1323	}
1324
1325	my $parameter_name = $parameter;
1326	$parameter_name =~ s/\[.*//;
1327
1328	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1329	$type = $args{'parametertypes'}{$parameter};
1330	if ($type =~ m/([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)/) {
1331	    # pointer-to-function
1332	    print "\t$1 $parameter) ($2);\n";
1333	} elsif ($type =~ m/^(.*?)\s*(:.*)/) {
1334	    # bitfield
1335	    print "\t$1 $parameter$2;\n";
1336	} else {
1337	    print "\t".$type." ".$parameter.";\n";
1338	}
1339    }
1340    print "};\n\n";
1341
1342    print "Members:\n\n";
1343    foreach $parameter (@{$args{'parameterlist'}}) {
1344	($parameter =~ /^#/) && next;
1345
1346	my $parameter_name = $parameter;
1347	$parameter_name =~ s/\[.*//;
1348
1349	($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
1350	print "$parameter\n\t";
1351	print $args{'parameterdescs'}{$parameter_name}."\n";
1352    }
1353    print "\n";
1354    output_section_text(@_);
1355}
1356
1357sub output_blockhead_text(%) {
1358    my %args = %{$_[0]};
1359    my ($parameter, $section);
1360
1361    foreach $section (@{$args{'sectionlist'}}) {
1362	print " $section:\n";
1363	print "    -> ";
1364	output_highlight($args{'sections'}{$section});
1365    }
1366}
1367
1368##
1369# generic output function for all types (function, struct/union, typedef, enum);
1370# calls the generated, variable output_ function name based on
1371# functype and output_mode
1372sub output_declaration {
1373    no strict 'refs';
1374    my $name = shift;
1375    my $functype = shift;
1376    my $func = "output_${functype}_$output_mode";
1377    if (($function_only==0) ||
1378	( $function_only == 1 && defined($function_table{$name})) ||
1379	( $function_only == 2 && !defined($function_table{$name})))
1380    {
1381	&$func(@_);
1382	$section_counter++;
1383    }
1384}
1385
1386##
1387# generic output function - calls the right one based on current output mode.
1388sub output_blockhead {
1389    no strict 'refs';
1390    my $func = "output_blockhead_".$output_mode;
1391    &$func(@_);
1392    $section_counter++;
1393}
1394
1395##
1396# takes a declaration (struct, union, enum, typedef) and
1397# invokes the right handler. NOT called for functions.
1398sub dump_declaration($$) {
1399    no strict 'refs';
1400    my ($prototype, $file) = @_;
1401    my $func = "dump_".$decl_type;
1402    &$func(@_);
1403}
1404
1405sub dump_union($$) {
1406    dump_struct(@_);
1407}
1408
1409sub dump_struct($$) {
1410    my $x = shift;
1411    my $file = shift;
1412    my $nested;
1413
1414    if ($x =~/(struct|union)\s+(\w+)\s*{(.*)}/) {
1415	$declaration_name = $2;
1416	my $members = $3;
1417
1418	# ignore embedded structs or unions
1419	$members =~ s/({.*})//g;
1420	$nested = $1;
1421
1422	# ignore members marked private:
1423	$members =~ s/\/\*.*?private:.*?public:.*?\*\///gos;
1424	$members =~ s/\/\*.*?private:.*//gos;
1425	# strip comments:
1426	$members =~ s/\/\*.*?\*\///gos;
1427	$nested =~ s/\/\*.*?\*\///gos;
1428
1429	create_parameterlist($members, ';', $file);
1430	check_sections($file, $declaration_name, "struct", $sectcheck, $struct_actual, $nested);
1431
1432	output_declaration($declaration_name,
1433			   'struct',
1434			   {'struct' => $declaration_name,
1435			    'module' => $modulename,
1436			    'parameterlist' => \@parameterlist,
1437			    'parameterdescs' => \%parameterdescs,
1438			    'parametertypes' => \%parametertypes,
1439			    'sectionlist' => \@sectionlist,
1440			    'sections' => \%sections,
1441			    'purpose' => $declaration_purpose,
1442			    'type' => $decl_type
1443			   });
1444    }
1445    else {
1446	print STDERR "Error(${file}:$.): Cannot parse struct or union!\n";
1447	++$errors;
1448    }
1449}
1450
1451sub dump_enum($$) {
1452    my $x = shift;
1453    my $file = shift;
1454
1455    $x =~ s@/\*.*?\*/@@gos;	# strip comments.
1456    if ($x =~ /enum\s+(\w+)\s*{(.*)}/) {
1457	$declaration_name = $1;
1458	my $members = $2;
1459
1460	foreach my $arg (split ',', $members) {
1461	    $arg =~ s/^\s*(\w+).*/$1/;
1462	    push @parameterlist, $arg;
1463	    if (!$parameterdescs{$arg}) {
1464		$parameterdescs{$arg} = $undescribed;
1465		print STDERR "Warning(${file}:$.): Enum value '$arg' ".
1466		    "not described in enum '$declaration_name'\n";
1467	    }
1468
1469	}
1470
1471	output_declaration($declaration_name,
1472			   'enum',
1473			   {'enum' => $declaration_name,
1474			    'module' => $modulename,
1475			    'parameterlist' => \@parameterlist,
1476			    'parameterdescs' => \%parameterdescs,
1477			    'sectionlist' => \@sectionlist,
1478			    'sections' => \%sections,
1479			    'purpose' => $declaration_purpose
1480			   });
1481    }
1482    else {
1483	print STDERR "Error(${file}:$.): Cannot parse enum!\n";
1484	++$errors;
1485    }
1486}
1487
1488sub dump_typedef($$) {
1489    my $x = shift;
1490    my $file = shift;
1491
1492    $x =~ s@/\*.*?\*/@@gos;	# strip comments.
1493    while (($x =~ /\(*.\)\s*;$/) || ($x =~ /\[*.\]\s*;$/)) {
1494	$x =~ s/\(*.\)\s*;$/;/;
1495	$x =~ s/\[*.\]\s*;$/;/;
1496    }
1497
1498    if ($x =~ /typedef.*\s+(\w+)\s*;/) {
1499	$declaration_name = $1;
1500
1501	output_declaration($declaration_name,
1502			   'typedef',
1503			   {'typedef' => $declaration_name,
1504			    'module' => $modulename,
1505			    'sectionlist' => \@sectionlist,
1506			    'sections' => \%sections,
1507			    'purpose' => $declaration_purpose
1508			   });
1509    }
1510    else {
1511	print STDERR "Error(${file}:$.): Cannot parse typedef!\n";
1512	++$errors;
1513    }
1514}
1515
1516sub save_struct_actual($) {
1517    my $actual = shift;
1518
1519    # strip all spaces from the actual param so that it looks like one string item
1520    $actual =~ s/\s*//g;
1521    $struct_actual = $struct_actual . $actual . " ";
1522}
1523
1524sub create_parameterlist($$$) {
1525    my $args = shift;
1526    my $splitter = shift;
1527    my $file = shift;
1528    my $type;
1529    my $param;
1530
1531    # temporarily replace commas inside function pointer definition
1532    while ($args =~ /(\([^\),]+),/) {
1533	$args =~ s/(\([^\),]+),/$1#/g;
1534    }
1535
1536    foreach my $arg (split($splitter, $args)) {
1537	# strip comments
1538	$arg =~ s/\/\*.*\*\///;
1539	# strip leading/trailing spaces
1540	$arg =~ s/^\s*//;
1541	$arg =~ s/\s*$//;
1542	$arg =~ s/\s+/ /;
1543
1544	if ($arg =~ /^#/) {
1545	    # Treat preprocessor directive as a typeless variable just to fill
1546	    # corresponding data structures "correctly". Catch it later in
1547	    # output_* subs.
1548	    push_parameter($arg, "", $file);
1549	} elsif ($arg =~ m/\(.+\)\s*\(/) {
1550	    # pointer-to-function
1551	    $arg =~ tr/#/,/;
1552	    $arg =~ m/[^\(]+\(\*?\s*(\w*)\s*\)/;
1553	    $param = $1;
1554	    $type = $arg;
1555	    $type =~ s/([^\(]+\(\*?)\s*$param/$1/;
1556	    save_struct_actual($param);
1557	    push_parameter($param, $type, $file);
1558	} elsif ($arg) {
1559	    $arg =~ s/\s*:\s*/:/g;
1560	    $arg =~ s/\s*\[/\[/g;
1561
1562	    my @args = split('\s*,\s*', $arg);
1563	    if ($args[0] =~ m/\*/) {
1564		$args[0] =~ s/(\*+)\s*/ $1/;
1565	    }
1566
1567	    my @first_arg;
1568	    if ($args[0] =~ /^(.*\s+)(.*?\[.*\].*)$/) {
1569		    shift @args;
1570		    push(@first_arg, split('\s+', $1));
1571		    push(@first_arg, $2);
1572	    } else {
1573		    @first_arg = split('\s+', shift @args);
1574	    }
1575
1576	    unshift(@args, pop @first_arg);
1577	    $type = join " ", @first_arg;
1578
1579	    foreach $param (@args) {
1580		if ($param =~ m/^(\*+)\s*(.*)/) {
1581		    save_struct_actual($2);
1582		    push_parameter($2, "$type $1", $file);
1583		}
1584		elsif ($param =~ m/(.*?):(\d+)/) {
1585		    if ($type ne "") { # skip unnamed bit-fields
1586			save_struct_actual($1);
1587			push_parameter($1, "$type:$2", $file)
1588		    }
1589		}
1590		else {
1591		    save_struct_actual($param);
1592		    push_parameter($param, $type, $file);
1593		}
1594	    }
1595	}
1596    }
1597}
1598
1599sub push_parameter($$$) {
1600	my $param = shift;
1601	my $type = shift;
1602	my $file = shift;
1603
1604	if (($anon_struct_union == 1) && ($type eq "") &&
1605	    ($param eq "}")) {
1606		return;		# ignore the ending }; from anon. struct/union
1607	}
1608
1609	$anon_struct_union = 0;
1610	my $param_name = $param;
1611	$param_name =~ s/\[.*//;
1612
1613	if ($type eq "" && $param =~ /\.\.\.$/)
1614	{
1615	    if (!defined $parameterdescs{$param} || $parameterdescs{$param} eq "") {
1616		$parameterdescs{$param} = "variable arguments";
1617	    }
1618	}
1619	elsif ($type eq "" && ($param eq "" or $param eq "void"))
1620	{
1621	    $param="void";
1622	    $parameterdescs{void} = "no arguments";
1623	}
1624	elsif ($type eq "" && ($param eq "struct" or $param eq "union"))
1625	# handle unnamed (anonymous) union or struct:
1626	{
1627		$type = $param;
1628		$param = "{unnamed_" . $param . "}";
1629		$parameterdescs{$param} = "anonymous\n";
1630		$anon_struct_union = 1;
1631	}
1632
1633	# warn if parameter has no description
1634	# (but ignore ones starting with # as these are not parameters
1635	# but inline preprocessor statements);
1636	# also ignore unnamed structs/unions;
1637	if (!$anon_struct_union) {
1638	if (!defined $parameterdescs{$param_name} && $param_name !~ /^#/) {
1639
1640	    $parameterdescs{$param_name} = $undescribed;
1641
1642	    if (($type eq 'function') || ($type eq 'enum')) {
1643		print STDERR "Warning(${file}:$.): Function parameter ".
1644		    "or member '$param' not " .
1645		    "described in '$declaration_name'\n";
1646	    }
1647	    print STDERR "Warning(${file}:$.):".
1648			 " No description found for parameter '$param'\n";
1649	    ++$warnings;
1650	}
1651	}
1652
1653	push @parameterlist, $param;
1654	$parametertypes{$param} = $type;
1655}
1656
1657sub check_sections($$$$$$) {
1658	my ($file, $decl_name, $decl_type, $sectcheck, $prmscheck, $nested) = @_;
1659	my @sects = split ' ', $sectcheck;
1660	my @prms = split ' ', $prmscheck;
1661	my $err;
1662	my ($px, $sx);
1663	my $prm_clean;		# strip trailing "[array size]" and/or beginning "*"
1664
1665	foreach $sx (0 .. $#sects) {
1666		$err = 1;
1667		foreach $px (0 .. $#prms) {
1668			$prm_clean = $prms[$px];
1669			$prm_clean =~ s/\[.*\]//;
1670			$prm_clean =~ s/__attribute__\s*\(\([a-z,_\*\s\(\)]*\)\)//;
1671			##$prm_clean =~ s/^\**//;
1672			if ($prm_clean eq $sects[$sx]) {
1673				$err = 0;
1674				last;
1675			}
1676		}
1677		if ($err) {
1678			if ($decl_type eq "function") {
1679				print STDERR "Warning(${file}:$.): " .
1680					"Excess function parameter " .
1681					"'$sects[$sx]' " .
1682					"description in '$decl_name'\n";
1683				++$warnings;
1684			} else {
1685				if ($nested !~ m/\Q$sects[$sx]\E/) {
1686				    print STDERR "Warning(${file}:$.): " .
1687					"Excess struct/union/enum/typedef member " .
1688					"'$sects[$sx]' " .
1689					"description in '$decl_name'\n";
1690				    ++$warnings;
1691				}
1692			}
1693		}
1694	}
1695}
1696
1697##
1698# takes a function prototype and the name of the current file being
1699# processed and spits out all the details stored in the global
1700# arrays/hashes.
1701sub dump_function($$) {
1702    my $prototype = shift;
1703    my $file = shift;
1704
1705    $prototype =~ s/^static +//;
1706    $prototype =~ s/^extern +//;
1707    $prototype =~ s/^asmlinkage +//;
1708    $prototype =~ s/^inline +//;
1709    $prototype =~ s/^__inline__ +//;
1710    $prototype =~ s/^__inline +//;
1711    $prototype =~ s/^__always_inline +//;
1712    $prototype =~ s/^noinline +//;
1713    $prototype =~ s/__devinit +//;
1714    $prototype =~ s/__init +//;
1715    $prototype =~ s/^#\s*define\s+//; #ak added
1716    $prototype =~ s/__attribute__\s*\(\([a-z,]*\)\)//;
1717
1718    # Yes, this truly is vile.  We are looking for:
1719    # 1. Return type (may be nothing if we're looking at a macro)
1720    # 2. Function name
1721    # 3. Function parameters.
1722    #
1723    # All the while we have to watch out for function pointer parameters
1724    # (which IIRC is what the two sections are for), C types (these
1725    # regexps don't even start to express all the possibilities), and
1726    # so on.
1727    #
1728    # If you mess with these regexps, it's a good idea to check that
1729    # the following functions' documentation still comes out right:
1730    # - parport_register_device (function pointer parameters)
1731    # - atomic_set (macro)
1732    # - pci_match_device, __copy_to_user (long return type)
1733
1734    if ($prototype =~ m/^()([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
1735	$prototype =~ m/^(\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
1736	$prototype =~ m/^(\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
1737	$prototype =~ m/^(\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
1738	$prototype =~ m/^(\w+\s+\w+\s*\*+)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
1739	$prototype =~ m/^(\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
1740	$prototype =~ m/^(\w+\s+\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\(]*)\)/ ||
1741	$prototype =~ m/^()([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
1742	$prototype =~ m/^(\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
1743	$prototype =~ m/^(\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
1744	$prototype =~ m/^(\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
1745	$prototype =~ m/^(\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
1746	$prototype =~ m/^(\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
1747	$prototype =~ m/^(\w+\s+\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
1748	$prototype =~ m/^(\w+\s+\w+\s+\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
1749	$prototype =~ m/^(\w+\s+\w+\s+\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/ ||
1750	$prototype =~ m/^(\w+\s+\w+\s*\*\s*\w+\s*\*\s*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\{]*)\)/)  {
1751	$return_type = $1;
1752	$declaration_name = $2;
1753	my $args = $3;
1754
1755	create_parameterlist($args, ',', $file);
1756    } else {
1757	print STDERR "Error(${file}:$.): cannot understand prototype: '$prototype'\n";
1758	++$errors;
1759	return;
1760    }
1761
1762	my $prms = join " ", @parameterlist;
1763	check_sections($file, $declaration_name, "function", $sectcheck, $prms, "");
1764
1765    output_declaration($declaration_name,
1766		       'function',
1767		       {'function' => $declaration_name,
1768			'module' => $modulename,
1769			'functiontype' => $return_type,
1770			'parameterlist' => \@parameterlist,
1771			'parameterdescs' => \%parameterdescs,
1772			'parametertypes' => \%parametertypes,
1773			'sectionlist' => \@sectionlist,
1774			'sections' => \%sections,
1775			'purpose' => $declaration_purpose
1776		       });
1777}
1778
1779sub process_file($);
1780
1781# Read the file that maps relative names to absolute names for
1782# separate source and object directories and for shadow trees.
1783if (open(SOURCE_MAP, "<.tmp_filelist.txt")) {
1784	my ($relname, $absname);
1785	while(<SOURCE_MAP>) {
1786		chop();
1787		($relname, $absname) = (split())[0..1];
1788		$relname =~ s:^/+::;
1789		$source_map{$relname} = $absname;
1790	}
1791	close(SOURCE_MAP);
1792}
1793
1794if ($filelist) {
1795	open(FLIST,"<$filelist") or die "Can't open file list $filelist";
1796	while(<FLIST>) {
1797		chop;
1798		process_file($_);
1799	}
1800}
1801
1802foreach (@ARGV) {
1803    chomp;
1804    process_file($_);
1805}
1806if ($verbose && $errors) {
1807  print STDERR "$errors errors\n";
1808}
1809if ($verbose && $warnings) {
1810  print STDERR "$warnings warnings\n";
1811}
1812
1813exit($errors);
1814
1815sub reset_state {
1816    $function = "";
1817    %constants = ();
1818    %parameterdescs = ();
1819    %parametertypes = ();
1820    @parameterlist = ();
1821    %sections = ();
1822    @sectionlist = ();
1823    $sectcheck = "";
1824    $struct_actual = "";
1825    $prototype = "";
1826
1827    $state = 0;
1828}
1829
1830sub syscall_munge() {
1831	my $void = 0;
1832
1833	$prototype =~ s@[\r\n\t]+@ @gos; # strip newlines/CR's/tabs
1834##	if ($prototype =~ m/SYSCALL_DEFINE0\s*\(\s*(a-zA-Z0-9_)*\s*\)/) {
1835	if ($prototype =~ m/SYSCALL_DEFINE0/) {
1836		$void = 1;
1837##		$prototype = "long sys_$1(void)";
1838	}
1839
1840	$prototype =~ s/SYSCALL_DEFINE.*\(/long sys_/; # fix return type & func name
1841	if ($prototype =~ m/long (sys_.*?),/) {
1842		$prototype =~ s/,/\(/;
1843	} elsif ($void) {
1844		$prototype =~ s/\)/\(void\)/;
1845	}
1846
1847	# now delete all of the odd-number commas in $prototype
1848	# so that arg types & arg names don't have a comma between them
1849	my $count = 0;
1850	my $len = length($prototype);
1851	if ($void) {
1852		$len = 0;	# skip the for-loop
1853	}
1854	for (my $ix = 0; $ix < $len; $ix++) {
1855		if (substr($prototype, $ix, 1) eq ',') {
1856			$count++;
1857			if ($count % 2 == 1) {
1858				substr($prototype, $ix, 1) = ' ';
1859			}
1860		}
1861	}
1862}
1863
1864sub process_state3_function($$) {
1865    my $x = shift;
1866    my $file = shift;
1867
1868    $x =~ s@\/\/.*$@@gos; # strip C99-style comments to end of line
1869
1870    if ($x =~ m#\s*/\*\s+MACDOC\s*#io || ($x =~ /^#/ && $x !~ /^#\s*define/)) {
1871	# do nothing
1872    }
1873    elsif ($x =~ /([^\{]*)/) {
1874	$prototype .= $1;
1875    }
1876
1877    if (($x =~ /\{/) || ($x =~ /\#\s*define/) || ($x =~ /;/)) {
1878	$prototype =~ s@/\*.*?\*/@@gos;	# strip comments.
1879	$prototype =~ s@[\r\n]+@ @gos; # strip newlines/cr's.
1880	$prototype =~ s@^\s+@@gos; # strip leading spaces
1881	if ($prototype =~ /SYSCALL_DEFINE/) {
1882		syscall_munge();
1883	}
1884	dump_function($prototype, $file);
1885	reset_state();
1886    }
1887}
1888
1889sub process_state3_type($$) {
1890    my $x = shift;
1891    my $file = shift;
1892
1893    $x =~ s@[\r\n]+@ @gos; # strip newlines/cr's.
1894    $x =~ s@^\s+@@gos; # strip leading spaces
1895    $x =~ s@\s+$@@gos; # strip trailing spaces
1896    $x =~ s@\/\/.*$@@gos; # strip C99-style comments to end of line
1897
1898    if ($x =~ /^#/) {
1899	# To distinguish preprocessor directive from regular declaration later.
1900	$x .= ";";
1901    }
1902
1903    while (1) {
1904	if ( $x =~ /([^{};]*)([{};])(.*)/ ) {
1905	    $prototype .= $1 . $2;
1906	    ($2 eq '{') && $brcount++;
1907	    ($2 eq '}') && $brcount--;
1908	    if (($2 eq ';') && ($brcount == 0)) {
1909		dump_declaration($prototype,$file);
1910		reset_state();
1911		last;
1912	    }
1913	    $x = $3;
1914	} else {
1915	    $prototype .= $x;
1916	    last;
1917	}
1918    }
1919}
1920
1921# xml_escape: replace <, >, and & in the text stream;
1922#
1923# however, formatting controls that are generated internally/locally in the
1924# kernel-doc script are not escaped here; instead, they begin life like
1925# $blankline_html (4 of '\' followed by a mnemonic + ':'), then these strings
1926# are converted to their mnemonic-expected output, without the 4 * '\' & ':',
1927# just before actual output; (this is done by local_unescape())
1928sub xml_escape($) {
1929	my $text = shift;
1930	if (($output_mode eq "text") || ($output_mode eq "man")) {
1931		return $text;
1932	}
1933	$text =~ s/\&/\\\\\\amp;/g;
1934	$text =~ s/\</\\\\\\lt;/g;
1935	$text =~ s/\>/\\\\\\gt;/g;
1936	return $text;
1937}
1938
1939# convert local escape strings to html
1940# local escape strings look like:  '\\\\menmonic:' (that's 4 backslashes)
1941sub local_unescape($) {
1942	my $text = shift;
1943	if (($output_mode eq "text") || ($output_mode eq "man")) {
1944		return $text;
1945	}
1946	$text =~ s/\\\\\\\\lt:/</g;
1947	$text =~ s/\\\\\\\\gt:/>/g;
1948	return $text;
1949}
1950
1951sub process_file($) {
1952    my $file;
1953    my $identifier;
1954    my $func;
1955    my $descr;
1956    my $initial_section_counter = $section_counter;
1957
1958    if (defined($ENV{'SRCTREE'})) {
1959	$file = "$ENV{'SRCTREE'}" . "/" . "@_";
1960    }
1961    else {
1962	$file = "@_";
1963    }
1964    if (defined($source_map{$file})) {
1965	$file = $source_map{$file};
1966    }
1967
1968    if (!open(IN,"<$file")) {
1969	print STDERR "Error: Cannot open file $file\n";
1970	++$errors;
1971	return;
1972    }
1973
1974    $section_counter = 0;
1975    while (<IN>) {
1976	if ($state == 0) {
1977	    if (/$doc_start/o) {
1978		$state = 1;		# next line is always the function name
1979		$in_doc_sect = 0;
1980	    }
1981	} elsif ($state == 1) {	# this line is the function name (always)
1982	    if (/$doc_block/o) {
1983		$state = 4;
1984		$contents = "";
1985		if ( $1 eq "" ) {
1986			$section = $section_intro;
1987		} else {
1988			$section = $1;
1989		}
1990	    }
1991	    elsif (/$doc_decl/o) {
1992		$identifier = $1;
1993		if (/\s*([\w\s]+?)\s*-/) {
1994		    $identifier = $1;
1995		}
1996
1997		$state = 2;
1998		if (/-(.*)/) {
1999		    # strip leading/trailing/multiple spaces
2000		    $descr= $1;
2001		    $descr =~ s/^\s*//;
2002		    $descr =~ s/\s*$//;
2003		    $descr =~ s/\s+/ /;
2004		    $declaration_purpose = xml_escape($descr);
2005		} else {
2006		    $declaration_purpose = "";
2007		}
2008
2009		if (($declaration_purpose eq "") && $verbose) {
2010			print STDERR "Warning(${file}:$.): missing initial short description on line:\n";
2011			print STDERR $_;
2012			++$warnings;
2013		}
2014
2015		if ($identifier =~ m/^struct/) {
2016		    $decl_type = 'struct';
2017		} elsif ($identifier =~ m/^union/) {
2018		    $decl_type = 'union';
2019		} elsif ($identifier =~ m/^enum/) {
2020		    $decl_type = 'enum';
2021		} elsif ($identifier =~ m/^typedef/) {
2022		    $decl_type = 'typedef';
2023		} else {
2024		    $decl_type = 'function';
2025		}
2026
2027		if ($verbose) {
2028		    print STDERR "Info(${file}:$.): Scanning doc for $identifier\n";
2029		}
2030	    } else {
2031		print STDERR "Warning(${file}:$.): Cannot understand $_ on line $.",
2032		" - I thought it was a doc line\n";
2033		++$warnings;
2034		$state = 0;
2035	    }
2036	} elsif ($state == 2) {	# look for head: lines, and include content
2037	    if (/$doc_sect/o) {
2038		$newsection = $1;
2039		$newcontents = $2;
2040
2041		if (($contents ne "") && ($contents ne "\n")) {
2042		    if (!$in_doc_sect && $verbose) {
2043			print STDERR "Warning(${file}:$.): contents before sections\n";
2044			++$warnings;
2045		    }
2046		    dump_section($file, $section, xml_escape($contents));
2047		    $section = $section_default;
2048		}
2049
2050		$in_doc_sect = 1;
2051		$contents = $newcontents;
2052		if ($contents ne "") {
2053		    while ((substr($contents, 0, 1) eq " ") ||
2054			substr($contents, 0, 1) eq "\t") {
2055			    $contents = substr($contents, 1);
2056		    }
2057		    $contents .= "\n";
2058		}
2059		$section = $newsection;
2060	    } elsif (/$doc_end/) {
2061
2062		if ($contents ne "") {
2063		    dump_section($file, $section, xml_escape($contents));
2064		    $section = $section_default;
2065		    $contents = "";
2066		}
2067		# look for doc_com + <text> + doc_end:
2068		if ($_ =~ m'\s*\*\s*[a-zA-Z_0-9:\.]+\*/') {
2069		    print STDERR "Warning(${file}:$.): suspicious ending line: $_";
2070		    ++$warnings;
2071		}
2072
2073		$prototype = "";
2074		$state = 3;
2075		$brcount = 0;
2076#		print STDERR "end of doc comment, looking for prototype\n";
2077	    } elsif (/$doc_content/) {
2078		# miguel-style comment kludge, look for blank lines after
2079		# @parameter line to signify start of description
2080		if ($1 eq "" &&
2081			($section =~ m/^@/ || $section eq $section_context)) {
2082		    dump_section($file, $section, xml_escape($contents));
2083		    $section = $section_default;
2084		    $contents = "";
2085		} else {
2086		    $contents .= $1."\n";
2087		}
2088	    } else {
2089		# i dont know - bad line?  ignore.
2090		print STDERR "Warning(${file}:$.): bad line: $_";
2091		++$warnings;
2092	    }
2093	} elsif ($state == 3) {	# scanning for function '{' (end of prototype)
2094	    if ($decl_type eq 'function') {
2095		process_state3_function($_, $file);
2096	    } else {
2097		process_state3_type($_, $file);
2098	    }
2099	} elsif ($state == 4) {
2100		# Documentation block
2101		if (/$doc_block/) {
2102			dump_doc_section($file, $section, xml_escape($contents));
2103			$contents = "";
2104			$function = "";
2105			%constants = ();
2106			%parameterdescs = ();
2107			%parametertypes = ();
2108			@parameterlist = ();
2109			%sections = ();
2110			@sectionlist = ();
2111			$prototype = "";
2112			if ( $1 eq "" ) {
2113				$section = $section_intro;
2114			} else {
2115				$section = $1;
2116			}
2117		}
2118		elsif (/$doc_end/)
2119		{
2120			dump_doc_section($file, $section, xml_escape($contents));
2121			$contents = "";
2122			$function = "";
2123			%constants = ();
2124			%parameterdescs = ();
2125			%parametertypes = ();
2126			@parameterlist = ();
2127			%sections = ();
2128			@sectionlist = ();
2129			$prototype = "";
2130			$state = 0;
2131		}
2132		elsif (/$doc_content/)
2133		{
2134			if ( $1 eq "" )
2135			{
2136				$contents .= $blankline;
2137			}
2138			else
2139			{
2140				$contents .= $1 . "\n";
2141			}
2142		}
2143	}
2144    }
2145    if ($initial_section_counter == $section_counter) {
2146	print STDERR "Warning(${file}): no structured comments found\n";
2147	if ($output_mode eq "xml") {
2148	    # The template wants at least one RefEntry here; make one.
2149	    print "<refentry>\n";
2150	    print " <refnamediv>\n";
2151	    print "  <refname>\n";
2152	    print "   ${file}\n";
2153	    print "  </refname>\n";
2154	    print "  <refpurpose>\n";
2155	    print "   Document generation inconsistency\n";
2156	    print "  </refpurpose>\n";
2157	    print " </refnamediv>\n";
2158	    print " <refsect1>\n";
2159	    print "  <title>\n";
2160	    print "   Oops\n";
2161	    print "  </title>\n";
2162	    print "  <warning>\n";
2163	    print "   <para>\n";
2164	    print "    The template for this document tried to insert\n";
2165	    print "    the structured comment from the file\n";
2166	    print "    <filename>${file}</filename> at this point,\n";
2167	    print "    but none was found.\n";
2168	    print "    This dummy section is inserted to allow\n";
2169	    print "    generation to continue.\n";
2170	    print "   </para>\n";
2171	    print "  </warning>\n";
2172	    print " </refsect1>\n";
2173	    print "</refentry>\n";
2174	}
2175    }
2176}
2177