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1#!/usr/bin/perl
2###
3### Quick usage: mdoc2man.pl < mdoc_manpage.8 > man_manpage.8
4###
5###
6### Copyright (c) 2001 University of Illinois Board of Trustees
7### Copyright (c) 2001 Mark D. Roth
8### All rights reserved.
9###
10### Redistribution and use in source and binary forms, with or without
11### modification, are permitted provided that the following conditions
12### are met:
13### 1. Redistributions of source code must retain the above copyright
14### notice, this list of conditions and the following disclaimer.
15### 2. Redistributions in binary form must reproduce the above copyright
16### notice, this list of conditions and the following disclaimer in the
17### documentation and/or other materials provided with the distribution.
18### 3. All advertising materials mentioning features or use of this software
19### must display the following acknowledgement:
20### This product includes software developed by the University of
21### Illinois at Urbana, and their contributors.
22### 4. The University nor the names of their
23### contributors may be used to endorse or promote products derived from
24### this software without specific prior written permission.
25###
26### THIS SOFTWARE IS PROVIDED BY THE TRUSTEES AND CONTRIBUTORS ``AS IS'' AND
27### ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28### IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29### ARE DISCLAIMED. IN NO EVENT SHALL THE TRUSTEES OR CONTRIBUTORS BE LIABLE
30### FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31### DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32### OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33### HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34### LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35### OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36### SUCH DAMAGE.
37###
38
39use strict;
40
41my ($name, $date, $id);
42my ($line);
43my ($optlist, $oldoptlist, $nospace, $enum, $synopsis);
44my ($reference, $block, $ext, $extopt, $literal);
45my (@refauthors, $reftitle, $refissue, $refdate, $refopt);
46
47
48$optlist = 0; ### 1 = bullet, 2 = enum, 3 = tag, 4 = item
49$oldoptlist = 0;
50$nospace = 0;
51$synopsis = 0;
52$reference = 0;
53$block = 0;
54$ext = 0;
55$extopt = 0;
56$literal = 0;
57
58while ($line = <STDIN>)
59{
60 if ($line !~ /^\./)
61 {
62 print $line;
63 print ".br\n"
64 if ($literal);
65 next;
66 }
67
68 $line =~ s/^\.//;
69
70 next
71 if ($line =~ m/\\"/);
72
73 $line = ParseMacro($line);
74 print($line)
75 if (defined $line);
76}
77
78
79
80sub ParseMacro # ($line)
81{
82 my ($line) = @_;
83 my (@words, $retval, $option, $parens);
84
85 @words = split(/\s+/, $line);
86 $retval = '';
87 $option = 0;
88 $parens = 0;
89
90# print('@words = ', scalar(@words), ': ', join(' ', @words), "\n");
91
92 while ($_ = shift @words)
93 {
94# print "WORD: $_\n";
95
96 next
97 if (/^(Li|Pf)$/);
98
99 if (/^Xo$/)
100 {
101 $ext = 1;
102 $retval .= ' '
103 if ($retval ne '' && $retval !~ m/[\n ]$/);
104 next;
105 }
106
107 if (/^Xc$/)
108 {
109 $ext = 0;
110 $retval .= "\n"
111 if (! $extopt);
112 last;
113 }
114
115 if (/^Bd$/)
116 {
117 $literal = 1
118 if ($words[0] eq '-literal');
119 $retval .= "\n";
120 last;
121 }
122
123 if (/^Ed$/)
124 {
125 $literal = 0;
126 last;
127 }
128
129 if (/^Ns$/)
130 {
131 $nospace = 1
132 if (! $nospace);
133 $retval =~ s/ $//;
134 next;
135 }
136
137 if (/^No$/)
138 {
139 $retval =~ s/ $//;
140 $retval .= shift @words;
141 next;
142 }
143
144 if (/^Dq$/)
145 {
146 $retval .= '``';
147 do
148 {
149 $retval .= (shift @words) . ' ';
150 }
151 while (@words > 0 && $words[0] !~ m/^[\.,]/);
152 $retval =~ s/ $//;
153 $retval .= '\'\'';
154 $nospace = 1
155 if (! $nospace && $words[0] =~ m/^[\.,]/);
156 next;
157 }
158
159 if (/^(Sq|Ql)$/)
160 {
161 $retval .= '`' . (shift @words) . '\'';
162 $nospace = 1
163 if (! $nospace && $words[0] =~ m/^[\.,]/);
164 next;
165 }
166
167# if (/^Ic$/)
168# {
169# $retval .= '\\fB' . shift(@words) . '\\fP';
170# next;
171# }
172
173 if (/^Oo$/)
174 {
175# $retval .= "[\\c\n";
176 $extopt = 1;
177 $nospace = 1
178 if (! $nospace);
179 $retval .= '[';
180 next;
181 }
182
183 if (/^Oc$/)
184 {
185 $extopt = 0;
186 $retval .= ']';
187 next;
188 }
189
190 $retval .= ' '
191 if (! $nospace && $retval ne '' && $retval !~ m/[\n ]$/);
192 $nospace = 0
193 if ($nospace == 1);
194
195 if (/^Dd$/)
196 {
197 $date = join(' ', @words);
198 return undef;
199 }
200
201 if (/^Dt$/)
202 {
203 $id = join(' ', @words);
204 return undef;
205 }
206
207 if (/^Os$/)
208 {
209 $retval .= '.TH '
210 . $id
211 . " \"$date\" \""
212 . join(' ', @words)
213 . "\"";
214 last;
215 }
216
217 if (/^Sh$/)
218 {
219 $retval .= '.SH';
220 if ($words[0] eq 'SYNOPSIS')
221 {
222 $synopsis = 1;
223 }
224 else
225 {
226 $synopsis = 0;
227 }
228 next;
229 }
230
231 if (/^Xr$/)
232 {
233 $retval .= '\\fB' . (shift @words) .
234 '\\fP(' . (shift @words) . ')'
235 . (shift @words);
236 last;
237 }
238
239 if (/^Rs/)
240 {
241 @refauthors = ();
242 $reftitle = '';
243 $refissue = '';
244 $refdate = '';
245 $refopt = '';
246 $reference = 1;
247 last;
248 }
249
250 if (/^Re/)
251 {
252 $retval .= "\n";
253
254 # authors
255 while (scalar(@refauthors) > 1)
256 {
257 $retval .= shift(@refauthors) . ', ';
258 }
259 $retval .= 'and '
260 if ($retval ne '');
261 $retval .= shift(@refauthors);
262
263 # title
264 $retval .= ', \\fI' . $reftitle . '\\fP';
265
266 # issue
267 $retval .= ', ' . $refissue
268 if ($refissue ne '');
269
270 # date
271 $retval .= ', ' . $refdate
272 if ($refdate ne '');
273
274 # optional info
275 $retval .= ', ' . $refopt
276 if ($refopt ne '');
277
278 $retval .= ".\n";
279
280 $reference = 0;
281 last;
282 }
283
284 if ($reference)
285 {
286 if (/^%A$/)
287 {
288 unshift(@refauthors, join(' ', @words));
289 last;
290 }
291
292 if (/^%T$/)
293 {
294 $reftitle = join(' ', @words);
295 $reftitle =~ s/^"//;
296 $reftitle =~ s/"$//;
297 last;
298 }
299
300 if (/^%N$/)
301 {
302 $refissue = join(' ', @words);
303 last;
304 }
305
306 if (/^%D$/)
307 {
308 $refdate = join(' ', @words);
309 last;
310 }
311
312 if (/^%O$/)
313 {
314 $refopt = join(' ', @words);
315 last;
316 }
317 }
318
319 if (/^Nm$/)
320 {
321 my $n = $name;
322 $n = shift @words
323 if (@words > 0);
324 $name = $n unless $name;
325 $retval .= ".br\n"
326 if ($synopsis);
327 $retval .= "\\fB$n\\fP";
328 $nospace = 1
329 if (! $nospace && $words[0] =~ m/^[\.,]/);
330 next;
331 }
332
333 if (/^Nd$/)
334 {
335 $retval .= '\\-';
336 next;
337 }
338
339 if (/^Fl$/)
340 {
341 $retval .= '\\fB\\-' . (shift @words) . '\\fP';
342 $nospace = 1
343 if (! $nospace && $words[0] =~ m/^[\.,]/);
344 next;
345 }
346
347 if (/^Ar$/)
348 {
349 $retval .= '\\fI';
350 if (! defined $words[0])
351 {
352 $retval .= 'file ...\\fP';
353 }
354 else
355 {
356 $retval .= shift(@words) . '\\fP';
357 while ($words[0] eq '|')
358 {
359 $retval .= ' ' . shift(@words);
360 $retval .= ' \\fI' . shift(@words);
361 $retval .= '\\fP';
362 }
363 }
364 $nospace = 1
365 if (! $nospace && $words[0] =~ m/^[\.,]/);
366 next;
367 }
368
369 if (/^Cm$/)
370 {
371 $retval .= '\\fB' . (shift @words) . '\\fP';
372 while ($words[0] =~ m/^[\.,:)]$/)
373 {
374 $retval .= shift(@words);
375 }
376 next;
377 }
378
379 if (/^Op$/)
380 {
381 $option = 1;
382 $nospace = 1
383 if (! $nospace);
384 $retval .= '[';
385# my $tmp = pop(@words);
386# $tmp .= ']';
387# push(@words, $tmp);
388 next;
389 }
390
391 if (/^Pp$/)
392 {
393 $retval .= "\n";
394 next;
395 }
396
397 if (/^Ss$/)
398 {
399 $retval .= '.SS';
400 next;
401 }
402
403 if (/^Pa$/ && ! $option)
404 {
405 $retval .= '\\fI';
406 $retval .= '\\&'
407 if ($words[0] =~ m/^\./);
408 $retval .= (shift @words) . '\\fP';
409 while ($words[0] =~ m/^[\.,:;)]$/)
410 {
411 $retval .= shift(@words);
412 }
413# $nospace = 1
414# if (! $nospace && $words[0] =~ m/^[\.,:)]/);
415 next;
416 }
417
418 if (/^Dv$/)
419 {
420 $retval .= '.BR';
421 next;
422 }
423
424 if (/^(Em|Ev)$/)
425 {
426 $retval .= '.IR';
427 next;
428 }
429
430 if (/^Pq$/)
431 {
432 $retval .= '(';
433 $nospace = 1;
434 $parens = 1;
435 next;
436 }
437
438 if (/^(S[xy])$/)
439 {
440 $retval .= '.B ' . join(' ', @words);
441 last;
442 }
443
444 if (/^Ic$/)
445 {
446 $retval .= '\\fB';
447 while (defined $words[0]
448 && $words[0] !~ m/^[\.,]/)
449 {
450 if ($words[0] eq 'Op')
451 {
452 shift(@words);
453 $retval .= '[';
454 my $tmp = pop(@words);
455 $tmp .= ']';
456 push(@words, $tmp);
457 next;
458 }
459 if ($words[0] eq 'Ar')
460 {
461 shift @words;
462 $retval .= '\\fI';
463 $retval .= shift @words;
464 $retval .= '\\fP';
465 }
466 else
467 {
468 $retval .= shift @words;
469 }
470 $retval .= ' '
471 if (! $nospace);
472 }
473 $retval =~ s/ $//;
474 $retval .= '\\fP';
475 $retval .= shift @words
476 if (defined $words[0]);
477 last;
478 }
479
480 if (/^Bl$/)
481 {
482 $oldoptlist = $optlist;
483 if ($words[0] eq '-bullet')
484 {
485 $optlist = 1;
486 }
487 elsif ($words[0] eq '-enum')
488 {
489 $optlist = 2;
490 $enum = 0;
491 }
492 elsif ($words[0] eq '-tag')
493 {
494 $optlist = 3;
495 }
496 elsif ($words[0] eq '-item')
497 {
498 $optlist = 4;
499 }
500 last;
501 }
502
503 if (/^El$/)
504 {
505 $optlist = $oldoptlist;
506 next;
507 }
508
509 if ($optlist && /^It$/)
510 {
511 if ($optlist == 1)
512 {
513 # bullets
514 $retval .= '.IP \\(bu';
515 next;
516 }
517
518 if ($optlist == 2)
519 {
520 # enum
521 $retval .= '.IP ' . (++$enum) . '.';
522 next;
523 }
524
525 if ($optlist == 3)
526 {
527 # tags
528 $retval .= ".TP\n";
529 if ($words[0] =~ m/^(Pa|Ev)$/)
530 {
531 shift @words;
532 $retval .= '.B';
533 }
534 next;
535 }
536
537 if ($optlist == 4)
538 {
539 # item
540 $retval .= ".IP\n";
541 next;
542 }
543
544 next;
545 }
546
547 if (/^Sm$/)
548 {
549 if ($words[0] eq 'off')
550 {
551 $nospace = 2;
552 }
553 elsif ($words[0] eq 'on')
554 {
555# $retval .= "\n";
556 $nospace = 0;
557 }
558 shift @words;
559 next;
560 }
561
562 $retval .= "$_";
563 }
564
565 return undef
566 if ($retval eq '.');
567
568 $retval =~ s/^\.([^a-zA-Z])/$1/;
569# $retval =~ s/ $//;
570
571 $retval .= ')'
572 if ($parens == 1);
573
574 $retval .= ']'
575 if ($option == 1);
576
577# $retval .= ' '
578# if ($nospace && $retval ne '' && $retval !~ m/\n$/);
579
580# $retval .= ' '
581# if ($extended && $retval !~ m/ $/);
582
583 $retval .= ' '
584 if ($ext && ! $extopt && $retval !~ m/ $/);
585
586 $retval .= "\n"
587 if (! $ext && ! $extopt && $retval ne '' && $retval !~ m/\n$/);
588
589 return $retval;
590}
591
592
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