File: gdoc

package info (click to toggle)
shishi 1.0.0-1
  • links: PTS, VCS
  • area: main
  • in suites: squeeze
  • size: 22,144 kB
  • ctags: 7,865
  • sloc: ansic: 61,153; sh: 12,212; yacc: 1,219; makefile: 1,164; perl: 624; sed: 16
file content (897 lines) | stat: -rwxr-xr-x 25,019 bytes parent folder | download | duplicates (5)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
#!/usr/bin/perl

## Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008 Simon Josefsson
##                    added -texinfo, -listfunc
##                    man page revamp
##                    various improvements
## Copyright (c) 2001, 2002 Nikos Mavrogiannopoulos
##                    added -tex
## Copyright (c) 1998 Michael Zucchi

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# This will read a C source code file and scan for embedded comments
# in the style of gnome comments (+minor extensions - see below).

# usage:
# gdoc [ -docbook | -html | -text | -man | -tex | -texinfo | -listfunc ]
#      [ -sourceversion verno ] [ -include file | -includefuncprefix ]
#      [ -bugsto address ]
#      [ -seeinfo infonode ] [ -copyright notice ] [ -verbatimcopying ]
#      [ -function funcname [ -function funcname ...] ] c file(s)s > outputfile
#
#  Set output format using one of -docbook, -html, -text, -man, -tex,
#  -texinfo, or -listfunc.  Default is man.
#
#  -sourceversion
#       Version number for source code, e.g. '1.0.4'.  Used in 'man' headers.
#       Defaults to using current date.
#
#  -include FILE
#       For man pages, mention #include <FILE.h> in the synopsis.
#
#  -includefuncprefix
#       For man pages, mention a #include <FILE.h> in the synopsis.
#       The FILE derived from the function prefix.  For example, a
#       function gss_init_sec_context will generate an include
#       statement of #include <gss.h>.
#
#  -bugsto address
#       For man pages, include a section about reporting bugs and mention
#       the given e-mail address, e.g 'bug-libidn@gnu.org'.
#
#  -seeinfo infonode
#       For man pages, include a section that point to an info manual
#       for more information.
#
#  -copyright notice
#       For man pages, include a copyright section with the given
#       notice after a preamble.  Use, e.g., '2002, 2003 Simon Josefsson'.
#
#  -verbatimcopying
#       For man pages, and when the -copyright parameter is used,
#       add a licensing statement that say verbatim copying is permitted.
#
#  -function funcname
#	If set, then only generate documentation for the given function(s).  All
#	other functions are ignored.
#
#  c files - list of 'c' files to process
#
#  All output goes to stdout, with errors to stderr.

#
# format of comments.
# In the following table, (...)? signifies optional structure.
#                         (...)* signifies 0 or more structure elements
# /**
#  * function_name(:)? (- short description)?
# (* @parameterx: (description of parameter x)?)*
# (* a blank line)?
#  * (Description:)? (Description of function)?
#  * (Section header: (section description)? )*
#  (*)?*/
#
# So .. the trivial example would be:
#
# /**
#  * my_function
#  **/
#
# If the Description: header tag is ommitted, then there must be a blank line
# after the last parameter specification.
# e.g.
# /**
#  * my_function - does my stuff
#  * @my_arg: its mine damnit
#  *
#  * Does my stuff explained. 
#  */
#
#  or, could also use:
# /**
#  * my_function - does my stuff
#  * @my_arg: its mine damnit
#  * Description: Does my stuff explained. 
#  */
# etc.
#
# All descriptions can be multiline, apart from the short function description.
#
# All descriptive text is further processed, scanning for the following special
# patterns, which are highlighted appropriately.
#
# 'funcname()' - function
# '$ENVVAR' - environmental variable OBSOLETE (?)
# '#struct_name' - name of a structure
# '@parameter' - name of a parameter
# '%CONST' - name of a constant.

#
# Extensions for LaTeX:
#
# 1. the symbol '->' will be replaced with a rightarrow
# 2. x^y with ${x}^{y}$.
# 3. xxx\: with xxx:

use POSIX qw(strftime);

# match expressions used to find embedded type information
$type_constant = "\\\%(\\w+)";
$type_func = "(\\w+\\(\\))";
$type_param = "\\\@(\\w+)";
$type_struct = "\\\#(\\w+)";
$type_env = "(\\\$\\w+)";


# Output conversion substitutions.
#  One for each output format

# these work fairly well
%highlights_html = ( $type_constant, "<i>\$1</i>",
		     $type_func, "<b>\$1</b>",
		     $type_struct, "<i>\$1</i>",
		     $type_param, "<tt><b>\$1</b></tt>" );
$blankline_html = "<p>";

%highlights_texinfo = ( $type_constant, "\\\@code{\$1}",
			$type_func, "\\\@code{\$1}",
			$type_struct, "\\\@code{\$1}",
			$type_param, "\\\@code{\$1}" );
$blankline_texinfo = "";

%highlights_tex = ( $type_constant, "{\\\\it \$1}",
		     $type_func, "{\\\\bf \$1}",
		     $type_struct, "{\\\\it \$1}",
		     $type_param, "{\\\\bf \$1}" );
$blankline_tex = "\\\\";

# sgml, docbook format
%highlights_sgml = ( $type_constant, "<replaceable class=\"option\">\$1</replaceable>",
		     $type_func, "<function>\$1</function>",
		     $type_struct, "<structname>\$1</structname>",
		     $type_env, "<envar>\$1</envar>",
		     $type_param, "<parameter>\$1</parameter>" );
$blankline_sgml = "</para><para>\n";

# these are pretty rough
%highlights_man = ( $type_constant, "\\\\fB\$1\\\\fP",
		    $type_func, "\\\\fB\$1\\\\fP",
		    $type_struct, "\\\\fB\$1\\\\fP",
		    $type_param, "\\\\fI\$1\\\\fP" );
$blankline_man = "";

# text-mode
%highlights_text = ( $type_constant, "\$1",
		     $type_func, "\$1",
		     $type_struct, "\$1",
		     $type_param, "\$1" );
$blankline_text = "";


sub usage {
    print "Usage: $0 [ -v ] [ -docbook | -html | -text | -man | -tex | -texinfo  -listfunc ]\n";
    print "         [ -sourceversion verno ] [ -include file | -includefuncprefix ]\n";
    print "         [ -bugsto address ] [ -seeinfo infonode ] [ -copyright notice]\n";
    print "         [ -verbatimcopying ]\n";
    print "         [ -function funcname [ -function funcname ...] ]\n";
    print "         c source file(s) > outputfile\n";
    exit 1;
}

# read arguments
if ($#ARGV==-1) {
    usage();
}

$verbose = 0;
$output_mode = "man";
%highlights = %highlights_man;
$blankline = $blankline_man;
$modulename = "API Documentation";
$sourceversion = strftime "%Y-%m-%d", localtime;
$function_only = 0;
while ($ARGV[0] =~ m/^-(.*)/) {
    $cmd = shift @ARGV;
    if ($cmd eq "-html") {
	$output_mode = "html";
	%highlights = %highlights_html;
	$blankline = $blankline_html;
    } elsif ($cmd eq "-man") {
	$output_mode = "man";
	%highlights = %highlights_man;
	$blankline = $blankline_man;
    } elsif ($cmd eq "-tex") {
	$output_mode = "tex";
	%highlights = %highlights_tex;
	$blankline = $blankline_tex;
    } elsif ($cmd eq "-texinfo") {
	$output_mode = "texinfo";
	%highlights = %highlights_texinfo;
	$blankline = $blankline_texinfo;
    } elsif ($cmd eq "-text") {
	$output_mode = "text";
	%highlights = %highlights_text;
	$blankline = $blankline_text;
    } elsif ($cmd eq "-docbook") {
	$output_mode = "sgml";
	%highlights = %highlights_sgml;
	$blankline = $blankline_sgml;
    } elsif ($cmd eq "-listfunc") {
	$output_mode = "listfunc";
    } elsif ($cmd eq "-module") { # not needed for sgml, inherits from calling document
	$modulename = shift @ARGV;
    } elsif ($cmd eq "-sourceversion") {
	$sourceversion = shift @ARGV;
    } elsif ($cmd eq "-include") {
	$include = shift @ARGV;
    } elsif ($cmd eq "-includefuncprefix") {
	$includefuncprefix = 1;
    } elsif ($cmd eq "-bugsto") {
	$bugsto = shift @ARGV;
    } elsif ($cmd eq "-copyright") {
	$copyright = shift @ARGV;
    } elsif ($cmd eq "-verbatimcopying") {
	$verbatimcopying = 1;
    } elsif ($cmd eq "-seeinfo") {
	$seeinfo = shift @ARGV;
    } elsif ($cmd eq "-function") { # to only output specific functions
	$function_only = 1;
	$function = shift @ARGV;
	$function_table{$function} = 1;
    } elsif ($cmd eq "-v") {
	$verbose = 1;
    } elsif (($cmd eq "-h") || ($cmd eq "--help")) {
	usage();
    }
}

##
# dumps section contents to arrays/hashes intended for that purpose.
#
sub dump_section {
    my $name = shift @_;
    my $contents = join "\n", @_;

    if ($name =~ m/$type_constant/) {
	$name = $1;
#	print STDERR "constant section '$1' = '$contents'\n";
	$constants{$name} = $contents;
    } elsif ($name =~ m/$type_param/) {
#	print STDERR "parameter def '$1' = '$contents'\n";
	$name = $1;
	$parameters{$name} = $contents;
    } else {
#	print STDERR "other section '$name' = '$contents'\n";
	$sections{$name} = $contents;
	push @sectionlist, $name;
    }
}

##
# output function
#
# parameters, a hash.
#  function => "function name"
#  parameterlist => @list of parameters
#  parameters => %parameter descriptions
#  sectionlist => @list of sections
#  sections => %descriont descriptions
#  

sub repstr {
    $pattern = shift;
    $repl = shift;
    $match1 = shift;
    $match2 = shift;
    $match3 = shift;
    $match4 = shift;

    $output = $repl;
    $output =~ s,\$1,$match1,g;
    $output =~ s,\$2,$match2,g;
    $output =~ s,\$3,$match3,g;
    $output =~ s,\$4,$match4,g;

    eval "\$return = qq/$output/";

#    print "pattern $pattern matched 1=$match1 2=$match2 3=$match3 4=$match4 replace $repl yielded $output interpolated $return\n";

    $return;
}

sub just_highlight {
    my $contents = join "\n", @_;
    my $line;
    my $ret = "";

    foreach $pattern (keys %highlights) {
#	print "scanning pattern $pattern ($highlights{$pattern})\n";
	$contents =~ s:$pattern:repstr($pattern, $highlights{$pattern}, $1, $2, $3, $4):gse;
    }
    foreach $line (split "\n", $contents) {
	if ($line eq ""){
	    $ret = $ret . $lineprefix . $blankline;
	} else {
	    $ret = $ret . $lineprefix . $line;
	}
	$ret = $ret . "\n";
    }

    return $ret;
}

sub output_highlight {
    print (just_highlight (@_));
}

# output in texinfo
sub output_texinfo {
    my %args = %{$_[0]};
    my ($parameter, $section);
    my $count;

    print "\@subheading ".$args{'function'}."\n";
    print "\@anchor{".$args{'function'}."}\n";
    print "\@deftypefun {" . $args{'functiontype'} . "} ";
    print "{".$args{'function'}."} ";
    print "(";
    $count = 0;
    foreach $parameter (@{$args{'parameterlist'}}) {
	print $args{'parametertypes'}{$parameter}." \@var{".$parameter."}";
	if ($count != $#{$args{'parameterlist'}}) {
	    $count++;
	    print ", ";
	}
    }
    print ")\n";
    foreach $parameter (@{$args{'parameterlist'}}) {
	if ($args{'parameters'}{$parameter}) {
	    print "\@var{".$parameter."}: ";
	    output_highlight($args{'parameters'}{$parameter});
	    print "\n";
	}
    }
    foreach $section (@{$args{'sectionlist'}}) {
	print "\n\@strong{$section:} " if $section ne $section_default;
	$args{'sections'}{$section} =~ s:([{}]):\@\1:gs;
	output_highlight($args{'sections'}{$section});
    }
    print "\@end deftypefun\n\n";
}

# output in html
sub output_html {
    my %args = %{$_[0]};
    my ($parameter, $section);
    my $count;
    print "\n\n<a name=\"". $args{'function'} . "\">&nbsp</a><h2>Function</h2>\n";

    print "<i>".$args{'functiontype'}."</i>\n";
    print "<b>".$args{'function'}."</b>\n";
    print "(";
    $count = 0;
    foreach $parameter (@{$args{'parameterlist'}}) {
	print "<i>".$args{'parametertypes'}{$parameter}."</i> <b>".$parameter."</b>\n";
	if ($count != $#{$args{'parameterlist'}}) {
	    $count++;
	    print ", ";
	}
    }
    print ")\n";

    print "<h3>Arguments</h3>\n";
    print "<dl>\n";
    foreach $parameter (@{$args{'parameterlist'}}) {
	print "<dt><i>".$args{'parametertypes'}{$parameter}."</i> <b>".$parameter."</b>\n";
	print "<dd>";
	output_highlight($args{'parameters'}{$parameter});
    }
    print "</dl>\n";
    foreach $section (@{$args{'sectionlist'}}) {
	print "<h3>$section</h3>\n";
	print "<ul>\n";
	output_highlight($args{'sections'}{$section});
	print "</ul>\n";
    }
    print "<hr>\n";
}

# output in tex
sub output_tex {
    my %args = %{$_[0]};
    my ($parameter, $section);
    my $count;
    my $func = $args{'function'};
    my $param;
    my $param2;
    my $sec;
    my $check;
    my $type;

    $func =~ s/_/\\_/g;

    print "\n\n\\subsection{". $func . "}\n\\label{" . $args{'function'} . "}\n";

    $type = $args{'functiontype'};
    $type =~ s/_/\\_/g;

    print "{\\it ".$type."}\n";
    print "{\\bf ".$func."}\n";
    print "(";
    $count = 0;
    foreach $parameter (@{$args{'parameterlist'}}) {
        $param = $args{'parametertypes'}{$parameter};
        $param2 = $parameter;
	$param =~ s/_/\\_/g;
        $param2 =~ s/_/\\_/g;

	print "{\\it ".$param."} {\\bf ".$param2."}";
	if ($count != $#{$args{'parameterlist'}}) {
	    $count++;
	    print ", ";
	}
    }
    print ")\n";

    print "\n{\\large{Arguments}}\n";

    print "\\begin{itemize}\n";
    $check=0;
    foreach $parameter (@{$args{'parameterlist'}}) {
        $param1 = $args{'parametertypes'}{$parameter};
        $param1 =~ s/_/\\_/g;
        $param2 = $parameter;
	$param2 =~ s/_/\\_/g;

	$check = 1;
	print "\\item {\\it ".$param1."} {\\bf ".$param2."}: \n";
#	print "\n";

	$param3 = $args{'parameters'}{$parameter};
	$param3 =~ s/#([a-zA-Z\_]+)/{\\it \1}/g;

	$out = just_highlight($param3);
	$out =~ s/_/\\_/g;
	print $out;
    }
    if ($check==0) {
	print "\\item void\n";
    }
    print "\\end{itemize}\n";

    foreach $section (@{$args{'sectionlist'}}) {
	$sec = $section;
	$sec =~ s/_/\\_/g;
	$sec =~ s/#([a-zA-Z\_]+)/{\\it \1}/g;

	print "\n{\\large{$sec}}\\\\\n";
	print "\\begin{rmfamily}\n";

	$sec = $args{'sections'}{$section};
	$sec =~ s/\\:/:/g;
	$sec =~ s/#([a-zA-Z\_]+)/{\\it \1}/g;
	$sec =~ s/->/\$\\rightarrow\$/g;
	$sec =~ s/([0-9]+)\^([0-9]+)/\$\{\1\}\^\{\2\}\$/g;

	$out = just_highlight($sec);
	$out =~ s/_/\\_/g;

	print $out;
	print "\\end{rmfamily}\n";
    }
    print "\n";
}


# output in sgml DocBook
sub output_sgml {
    my %args = %{$_[0]};
    my ($parameter, $section);
    my $count;
    my $id;

    $id = $args{'module'}."-".$args{'function'};
    $id =~ s/[^A-Za-z0-9]/-/g;

    print "<refentry>\n";
    print "<refmeta>\n";
    print "<refentrytitle><phrase id=\"$id\">".$args{'function'}."</phrase></refentrytitle>\n";
    print "</refmeta>\n";
    print "<refnamediv>\n";
    print " <refname>".$args{'function'}."</refname>\n";
    print " <refpurpose>\n";
    print "  ".$args{'purpose'}."\n";
    print " </refpurpose>\n";
    print "</refnamediv>\n";

    print "<refsynopsisdiv>\n";
    print " <title>Synopsis</title>\n";
    print "  <funcsynopsis>\n";
    print "   <funcdef>".$args{'functiontype'}." ";
    print "<function>".$args{'function'}." ";
    print "</function></funcdef>\n";

#    print "<refsect1>\n";
#    print " <title>Synopsis</title>\n";
#    print "  <funcsynopsis>\n";
#    print "   <funcdef>".$args{'functiontype'}." ";
#    print "<function>".$args{'function'}." ";
#    print "</function></funcdef>\n";

    $count = 0;
    if ($#{$args{'parameterlist'}} >= 0) {
	foreach $parameter (@{$args{'parameterlist'}}) {
	    print "   <paramdef>".$args{'parametertypes'}{$parameter};
	    print " <parameter>$parameter</parameter></paramdef>\n";
	}
    } else {
	print "  <void>\n";
    }
    print "  </funcsynopsis>\n";
    print "</refsynopsisdiv>\n";
#    print "</refsect1>\n";

    # print parameters
    print "<refsect1>\n <title>Arguments</title>\n";
#    print "<para>\nArguments\n";
    if ($#{$args{'parameterlist'}} >= 0) {
	print " <variablelist>\n";
	foreach $parameter (@{$args{'parameterlist'}}) {
	    print "  <varlistentry>\n   <term><parameter>$parameter</parameter></term>\n";
	    print "   <listitem>\n    <para>\n";
	    $lineprefix="     ";
	    output_highlight($args{'parameters'}{$parameter});
	    print "    </para>\n   </listitem>\n  </varlistentry>\n";
	}
	print " </variablelist>\n";
    } else {
	print " <para>\n  None\n </para>\n";
    }
    print "</refsect1>\n";

    # print out each section
    $lineprefix="   ";
    foreach $section (@{$args{'sectionlist'}}) {
	print "<refsect1>\n <title>$section</title>\n <para>\n";
#	print "<para>\n$section\n";
	if ($section =~ m/EXAMPLE/i) {
	    print "<example><para>\n";
	}
	output_highlight($args{'sections'}{$section});
#	print "</para>";
	if ($section =~ m/EXAMPLE/i) {
	    print "</para></example>\n";
	}
	print " </para>\n</refsect1>\n";
    }

    print "\n\n";
}

##
# output in man
sub output_man {
    my %args = %{$_[0]};
    my ($parameter, $section);
    my $count;

    print ".\\\" DO NOT MODIFY THIS FILE!  It was generated by gdoc.\n";
    print ".TH \"$args{'function'}\" 3 \"$args{'sourceversion'}\" \"". $args{'module'} . "\" \"". $args{'module'} . "\"\n";

    print ".SH NAME\n";

    print $args{'function'};
    if ($args{'purpose'}) {
	print " \\- " . $args{'purpose'} . "\n";
    } else {
	print " \\- API function\n";
    }

    print ".SH SYNOPSIS\n";
    print ".B #include <". $args{'include'} . ">\n"
	if $args{'include'};
    print ".B #include <". lc((split /_/, $args{'function'})[0]) . ".h>\n"
	if $args{'includefuncprefix'};
    print ".sp\n";
    print ".BI \"".$args{'functiontype'}." ".$args{'function'}."(";
    $count = 0;
    foreach $parameter (@{$args{'parameterlist'}}) {
	print $args{'parametertypes'}{$parameter}." \" ".$parameter." \"";
	if ($count != $#{$args{'parameterlist'}}) {
	    $count++;
	    print ", ";
	}
    }
    print ");\"\n";

    print ".SH ARGUMENTS\n";
    foreach $parameter (@{$args{'parameterlist'}}) {
	print ".IP \"".$args{'parametertypes'}{$parameter}." ".$parameter."\" 12\n";
	$param = $args{'parameters'}{$parameter};
	$param =~ s/-/\\-/g;
	output_highlight($param);
    }
    foreach $section (@{$args{'sectionlist'}}) {
	print ".SH \"" . uc($section) . "\"\n";
	$sec = $args{'sections'}{$section};
	$sec =~ s/-/\\-/g;
	output_highlight($sec);
    }

    if ($args{'bugsto'}) {
	print ".SH \"REPORTING BUGS\"\n";
	print "Report bugs to <". $args{'bugsto'} . ">.\n";
    }

    if ($args{'copyright'}) {
	print ".SH COPYRIGHT\n";
	print "Copyright \\(co ". $args{'copyright'} . ".\n";
	if ($args{'verbatimcopying'}) {
	    print ".br\n";
	    print "Copying and distribution of this file, with or without modification,\n";
	    print "are permitted in any medium without royalty provided the copyright\n";
	    print "notice and this notice are preserved.\n";
	}
    }

    if ($args{'seeinfo'}) {
	print ".SH \"SEE ALSO\"\n";
	print "The full documentation for\n";
	print ".B " . $args{'module'} . "\n";
	print "is maintained as a Texinfo manual.  If the\n";
	print ".B info\n";
	print "and\n";
	print ".B " . $args{'module'} . "\n";
	print "programs are properly installed at your site, the command\n";
	print ".IP\n";
	print ".B info " . $args{'seeinfo'} . "\n";
	print ".PP\n";
	print "should give you access to the complete manual.\n";
    }
}

sub output_listfunc {
    my %args = %{$_[0]};
    print $args{'function'} . "\n";
}

##
# output in text
sub output_text {
    my %args = %{$_[0]};
    my ($parameter, $section);

    print "Function = ".$args{'function'}."\n";
    print "  return type: ".$args{'functiontype'}."\n\n";
    foreach $parameter (@{$args{'parameterlist'}}) {
	print " ".$args{'parametertypes'}{$parameter}." ".$parameter."\n";
	print "    -> ".$args{'parameters'}{$parameter}."\n";
    }
    foreach $section (@{$args{'sectionlist'}}) {
	print " $section:\n";
	print "    -> ";
	output_highlight($args{'sections'}{$section});
    }
}

##
# generic output function - calls the right one based
# on current output mode.
sub output_function {
#    output_html(@_);
    eval "output_".$output_mode."(\@_);";
}


##
# takes a function prototype and spits out all the details
# stored in the global arrays/hsahes.
sub dump_function {
    my $prototype = shift @_;

    if ($prototype =~ m/^()([a-zA-Z0-9_~:]+)\s*\(([^\)]*)\)/ ||
	$prototype =~ m/^(\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\)]*)\)/ ||
	$prototype =~ m/^(\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\)]*)\)/ ||
	$prototype =~ m/^(\w+\s+\w+)\s+([a-zA-Z0-9_~:]+)\s*\(([^\)]*)\)/ ||
	$prototype =~ m/^(\w+\s+\w+\s*\*)\s*([a-zA-Z0-9_~:]+)\s*\(([^\)]*)\)/)  {
	$return_type = $1;
	$function_name = $2;
	$args = $3;

#	print STDERR "ARGS = '$args'\n";

	foreach $arg (split ',', $args) {
	    # strip leading/trailing spaces
	    $arg =~ s/^\s*//;
	    $arg =~ s/\s*$//;
#	    print STDERR "SCAN ARG: '$arg'\n";
	    @args = split('\s', $arg);

#	    print STDERR " -> @args\n";
	    $param = pop @args;
#	    print STDERR " -> @args\n";
	    if ($param =~ m/^(\*+)(.*)/) {
		$param = $2;
		push @args, $1;
	    }
	    if ($param =~ m/^(.*)(\[\])$/) {
		$param = $1;
		push @args, $2;
	    }
#	    print STDERR " :> @args\n";
	    $type = join " ", @args;

	    if ($parameters{$param} eq "" && $param != "void") {
		$parameters{$param} = "-- undescribed --";
		print STDERR "warning: $lineno: Function parameter '$param' not described in '$function_name'\n";
	    }

	    push @parameterlist, $param;
	    $parametertypes{$param} = $type;

#	    print STDERR "param = '$param', type = '$type'\n";
	}
    } else {
	print STDERR "warning: $lineno: Cannot understand prototype: '$prototype'\n";
	return;
    }

    if ($function_only==0 || defined($function_table{$function_name})) {
	output_function({'function' => $function_name,
			 'module' => $modulename,
			 'sourceversion' => $sourceversion,
			 'include' => $include,
			 'includefuncprefix' => $includefuncprefix,
			 'bugsto' => $bugsto,
			 'copyright' => $copyright,
			 'verbatimcopying' => $verbatimcopying,
			 'seeinfo' => $seeinfo,
			 'functiontype' => $return_type,
			 'parameterlist' => \@parameterlist,
			 'parameters' => \%parameters,
			 'parametertypes' => \%parametertypes,
			 'sectionlist' => \@sectionlist,
			 'sections' => \%sections,
			 'purpose' => $function_purpose
			 });
    }
}

######################################################################
# main
# states
# 0 - normal code
# 1 - looking for function name
# 2 - scanning field start.
# 3 - scanning prototype.
$state = 0;
$section = "";

$doc_special = "\@\%\$\#";

$doc_start = "^/\\*\\*\$";
$doc_end = "\\*/";
$doc_com = "\\s*\\*\\s*";
$doc_func = $doc_com."(\\w+):?";
$doc_sect = $doc_com."([".$doc_special."[:upper:]][\\w ]+):\\s*(.*)";
$doc_content = $doc_com."(.*)";

%constants = ();
%parameters = ();
@parameterlist = ();
%sections = ();
@sectionlist = ();

$contents = "";
$section_default = "Description";	# default section
$section = $section_default;

$lineno = 0;
foreach $file (@ARGV) {
    if (!open(IN,"<$file")) {
	print STDERR "Error: Cannot open file $file\n";
	next;
    }
    while (<IN>) {
	$lineno++;

	if ($state == 0) {
	    if (/$doc_start/o) {
		$state = 1;		# next line is always the function name
	    }
	} elsif ($state == 1) {	# this line is the function name (always)
	    if (/$doc_func/o) {
		$function = $1;
		$state = 2;
		if (/-\s*(.*)/) {
		    $function_purpose = $1;
		} else {
		    $function_purpose = "";
		}
		if ($verbose) {
		    print STDERR "Info($lineno): Scanning doc for $function\n";
		}
	    } else {
		print STDERR "warning: $lineno: Cannot understand $_ on line $lineno",
		" - I thought it was a doc line\n";
		$state = 0;
	    }
	} elsif ($state == 2) {	# look for head: lines, and include content
	    if (/$doc_sect/o) {
		$newsection = $1;
		$newcontents = $2;

		if ($contents ne "") {
		    dump_section($section, $contents);
		    $section = $section_default;
		}

		$contents = $newcontents;
		if ($contents ne "") {
		    $contents .= "\n";
		}
		$section = $newsection;
	    } elsif (/$doc_end/) {

		if ($contents ne "") {
		    dump_section($section, $contents);
		    $section = $section_default;
		    $contents = "";
		}

#	    print STDERR "end of doc comment, looking for prototype\n";
		$prototype = "";
		$state = 3;
	    } elsif (/$doc_content/) {
		# miguel-style comment kludge, look for blank lines after
		# @parameter line to signify start of description
		if ($1 eq "" && $section =~ m/^@/) {
		    dump_section($section, $contents);
		    $section = $section_default;
		    $contents = "";
		} else {
		    $contents .= $1."\n";
		}
	    } else {
		# i dont know - bad line?  ignore.
		print STDERR "warning: $lineno: Bad line: $_";
	    }
	} elsif ($state == 3) {	# scanning for function { (end of prototype)
	    if (m#\s*/\*\s+MACDOC\s*#io) {
	      # do nothing
	    }
	    elsif (/([^\{]*)/) {
		$prototype .= $1;
	    }
	    if (/\{/) {
		$prototype =~ s@/\*.*?\*/@@gos;	# strip comments.
		$prototype =~ s@[\r\n]+@ @gos; # strip newlines/cr's.
		$prototype =~ s@^ +@@gos; # strip leading spaces
		dump_function($prototype);

		$function = "";
		%constants = ();
		%parameters = ();
		%parametertypes = ();
		@parameterlist = ();
		%sections = ();
		@sectionlist = ();
		$prototype = "";

		$state = 0;
	    }
	}
    }
}