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mandoc(1): Update to 1.9.13.
[dragonfly.git] / usr.bin / mandoc / man_html.c
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32c903ac 1/* $Id: man_html.c,v 1.17 2009/10/30 18:53:08 kristaps Exp $ */
589e7c1d
SW		 2/*
3 * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17#include <sys/types.h>
589e7c1d
SW		 18
19#include <assert.h>
20#include <ctype.h>
589e7c1d
SW		 21#include <stdio.h>
22#include <stdlib.h>
23#include <string.h>
24
25#include "out.h"
26#include "html.h"
27#include "man.h"
28#include "main.h"
29
30/* TODO: preserve ident widths. */
cbce6d97 31/* FIXME: have PD set the default vspace width. */
589e7c1d
SW		 32
33#define INDENT 5
34#define HALFINDENT 3
35
36#define MAN_ARGS const struct man_meta *m, \
37 const struct man_node *n, \
38 struct html *h
39
40struct htmlman {
41 int (*pre)(MAN_ARGS);
42 int (*post)(MAN_ARGS);
43};
44
45static void print_man(MAN_ARGS);
46static void print_man_head(MAN_ARGS);
47static void print_man_nodelist(MAN_ARGS);
48static void print_man_node(MAN_ARGS);
49
50static int a2width(const struct man_node *,
51 struct roffsu *);
52
53static int man_alt_pre(MAN_ARGS);
54static int man_br_pre(MAN_ARGS);
55static int man_ign_pre(MAN_ARGS);
56static void man_root_post(MAN_ARGS);
57static int man_root_pre(MAN_ARGS);
58static int man_B_pre(MAN_ARGS);
59static int man_HP_pre(MAN_ARGS);
60static int man_I_pre(MAN_ARGS);
61static int man_IP_pre(MAN_ARGS);
62static int man_PP_pre(MAN_ARGS);
63static int man_RS_pre(MAN_ARGS);
64static int man_SB_pre(MAN_ARGS);
65static int man_SH_pre(MAN_ARGS);
66static int man_SM_pre(MAN_ARGS);
67static int man_SS_pre(MAN_ARGS);
68
32c903ac
SW		 69#ifdef __linux__
70extern size_t strlcpy(char *, const char *, size_t);
71extern size_t strlcat(char *, const char *, size_t);
72#endif
73
589e7c1d
SW		 74static const struct htmlman mans[MAN_MAX] = {
75 { man_br_pre, NULL }, /* br */
76 { NULL, NULL }, /* TH */
77 { man_SH_pre, NULL }, /* SH */
78 { man_SS_pre, NULL }, /* SS */
79 { man_IP_pre, NULL }, /* TP */
80 { man_PP_pre, NULL }, /* LP */
81 { man_PP_pre, NULL }, /* PP */
82 { man_PP_pre, NULL }, /* P */
83 { man_IP_pre, NULL }, /* IP */
84 { man_HP_pre, NULL }, /* HP */
85 { man_SM_pre, NULL }, /* SM */
86 { man_SB_pre, NULL }, /* SB */
87 { man_alt_pre, NULL }, /* BI */
88 { man_alt_pre, NULL }, /* IB */
89 { man_alt_pre, NULL }, /* BR */
90 { man_alt_pre, NULL }, /* RB */
91 { NULL, NULL }, /* R */
92 { man_B_pre, NULL }, /* B */
93 { man_I_pre, NULL }, /* I */
94 { man_alt_pre, NULL }, /* IR */
95 { man_alt_pre, NULL }, /* RI */
96 { NULL, NULL }, /* na */
97 { NULL, NULL }, /* i */
98 { man_br_pre, NULL }, /* sp */
99 { NULL, NULL }, /* nf */
100 { NULL, NULL }, /* fi */
101 { NULL, NULL }, /* r */
102 { NULL, NULL }, /* RE */
103 { man_RS_pre, NULL }, /* RS */
104 { man_ign_pre, NULL }, /* DT */
105 { man_ign_pre, NULL }, /* UC */
cbce6d97 106 { man_ign_pre, NULL }, /* PD */
589e7c1d
SW		 107};
108
109
110void
111html_man(void *arg, const struct man *m)
112{
113 struct html *h;
114 struct tag *t;
115
116 h = (struct html *)arg;
117
118 print_gen_doctype(h);
119
120 t = print_otag(h, TAG_HTML, 0, NULL);
121 print_man(man_meta(m), man_node(m), h);
122 print_tagq(h, t);
123
124 printf("\n");
125}
126
127
128static void
129print_man(MAN_ARGS)
130{
131 struct tag *t;
132 struct htmlpair tag;
133
134 t = print_otag(h, TAG_HEAD, 0, NULL);
135
136 print_man_head(m, n, h);
137 print_tagq(h, t);
138 t = print_otag(h, TAG_BODY, 0, NULL);
139
140 tag.key = ATTR_CLASS;
141 tag.val = "body";
142 print_otag(h, TAG_DIV, 1, &tag);
143
144 print_man_nodelist(m, n, h);
145
146 print_tagq(h, t);
147}
148
149
150/* ARGSUSED */
151static void
152print_man_head(MAN_ARGS)
153{
154
155 print_gen_head(h);
156 bufinit(h);
157 buffmt(h, "%s(%d)", m->title, m->msec);
158
159 print_otag(h, TAG_TITLE, 0, NULL);
160 print_text(h, h->buf);
161}
162
163
164static void
165print_man_nodelist(MAN_ARGS)
166{
167
168 print_man_node(m, n, h);
169 if (n->next)
170 print_man_nodelist(m, n->next, h);
171}
172
173
174static void
175print_man_node(MAN_ARGS)
176{
177 int child;
178 struct tag *t;
179
180 child = 1;
cbce6d97 181 t = h->tags.head;
589e7c1d
SW		 182
183 bufinit(h);
184
185 switch (n->type) {
186 case (MAN_ROOT):
187 child = man_root_pre(m, n, h);
188 break;
189 case (MAN_TEXT):
190 print_text(h, n->string);
191 break;
192 default:
193 if (mans[n->tok].pre)
194 child = (*mans[n->tok].pre)(m, n, h);
195 break;
196 }
197
198 if (child && n->child)
199 print_man_nodelist(m, n->child, h);
200
201 print_stagq(h, t);
202
203 bufinit(h);
204
205 switch (n->type) {
206 case (MAN_ROOT):
207 man_root_post(m, n, h);
208 break;
209 case (MAN_TEXT):
210 break;
211 default:
212 if (mans[n->tok].post)
213 (*mans[n->tok].post)(m, n, h);
214 break;
215 }
216}
217
218
219static int
220a2width(const struct man_node *n, struct roffsu *su)
221{
222
223 if (MAN_TEXT != n->type)
224 return(0);
225 if (a2roffsu(n->string, su, SCALE_BU))
226 return(1);
227
228 return(0);
229}
230
231
232/* ARGSUSED */
233static int
234man_root_pre(MAN_ARGS)
235{
32c903ac 236 struct htmlpair tag[3];
589e7c1d
SW		 237 struct tag *t, *tt;
238 char b[BUFSIZ], title[BUFSIZ];
239
240 b[0] = 0;
241 if (m->vol)
242 (void)strlcat(b, m->vol, BUFSIZ);
243
244 (void)snprintf(title, BUFSIZ - 1,
245 "%s(%d)", m->title, m->msec);
246
247 PAIR_CLASS_INIT(&tag[0], "header");
248 bufcat_style(h, "width", "100%");
249 PAIR_STYLE_INIT(&tag[1], h);
32c903ac
SW		 250 PAIR_SUMMARY_INIT(&tag[2], "header");
251
252 t = print_otag(h, TAG_TABLE, 3, tag);
589e7c1d
SW		 253 tt = print_otag(h, TAG_TR, 0, NULL);
254
255 bufinit(h);
256 bufcat_style(h, "width", "10%");
257 PAIR_STYLE_INIT(&tag[0], h);
258 print_otag(h, TAG_TD, 1, tag);
259 print_text(h, title);
260 print_stagq(h, tt);
261
262 bufinit(h);
263 bufcat_style(h, "width", "80%");
264 bufcat_style(h, "white-space", "nowrap");
265 bufcat_style(h, "text-align", "center");
266 PAIR_STYLE_INIT(&tag[0], h);
267 print_otag(h, TAG_TD, 1, tag);
268 print_text(h, b);
269 print_stagq(h, tt);
270
271 bufinit(h);
272 bufcat_style(h, "width", "10%");
273 bufcat_style(h, "text-align", "right");
274 PAIR_STYLE_INIT(&tag[0], h);
275 print_otag(h, TAG_TD, 1, tag);
276 print_text(h, title);
277 print_tagq(h, t);
278 return(1);
279}
280
281
282/* ARGSUSED */
283static void
284man_root_post(MAN_ARGS)
285{
32c903ac 286 struct htmlpair tag[3];
589e7c1d 287 struct tag *t, *tt;
cbce6d97 288 char b[DATESIZ];
589e7c1d 289
cbce6d97 290 time2a(m->date, b, DATESIZ);
589e7c1d
SW		 291
292 PAIR_CLASS_INIT(&tag[0], "footer");
293 bufcat_style(h, "width", "100%");
294 PAIR_STYLE_INIT(&tag[1], h);
32c903ac
SW		 295 PAIR_SUMMARY_INIT(&tag[2], "footer");
296
297 t = print_otag(h, TAG_TABLE, 3, tag);
589e7c1d
SW		 298 tt = print_otag(h, TAG_TR, 0, NULL);
299
300 bufinit(h);
301 bufcat_style(h, "width", "50%");
302 PAIR_STYLE_INIT(&tag[0], h);
303 print_otag(h, TAG_TD, 1, tag);
304 print_text(h, b);
305 print_stagq(h, tt);
306
307 bufinit(h);
308 bufcat_style(h, "width", "50%");
309 bufcat_style(h, "text-align", "right");
310 PAIR_STYLE_INIT(&tag[0], h);
311 print_otag(h, TAG_TD, 1, tag);
312 if (m->source)
313 print_text(h, m->source);
314 print_tagq(h, t);
315}
316
317
318
319/* ARGSUSED */
320static int
321man_br_pre(MAN_ARGS)
322{
323 struct roffsu su;
324 struct htmlpair tag;
325
326 SCALE_VS_INIT(&su, 1);
327
328 if (MAN_sp == n->tok && n->child)
329 a2roffsu(n->child->string, &su, SCALE_VS);
330 else if (MAN_br == n->tok)
331 su.scale = 0;
332
333 bufcat_su(h, "height", &su);
334 PAIR_STYLE_INIT(&tag, h);
335 print_otag(h, TAG_DIV, 1, &tag);
32c903ac
SW		 336 /* So the div isn't empty: */
337 print_text(h, "\\~");
338
589e7c1d
SW		 339 return(0);
340}
341
342
343/* ARGSUSED */
344static int
345man_SH_pre(MAN_ARGS)
346{
347 struct htmlpair tag[2];
348 struct roffsu su;
349
350 if (MAN_BODY == n->type) {
351 SCALE_HS_INIT(&su, INDENT);
352 bufcat_su(h, "margin-left", &su);
353 PAIR_CLASS_INIT(&tag[0], "sec-body");
354 PAIR_STYLE_INIT(&tag[1], h);
355 print_otag(h, TAG_DIV, 2, tag);
356 return(1);
357 } else if (MAN_BLOCK == n->type) {
358 PAIR_CLASS_INIT(&tag[0], "sec-block");
359 if (n->prev && MAN_SH == n->prev->tok)
360 if (NULL == n->prev->body->child) {
361 print_otag(h, TAG_DIV, 1, tag);
362 return(1);
363 }
364
365 SCALE_VS_INIT(&su, 1);
366 bufcat_su(h, "margin-top", &su);
367 if (NULL == n->next)
368 bufcat_su(h, "margin-bottom", &su);
369 PAIR_STYLE_INIT(&tag[1], h);
370 print_otag(h, TAG_DIV, 2, tag);
371 return(1);
372 }
373
374 PAIR_CLASS_INIT(&tag[0], "sec-head");
375 print_otag(h, TAG_DIV, 1, tag);
376 return(1);
377}
378
379
380/* ARGSUSED */
381static int
382man_alt_pre(MAN_ARGS)
383{
384 const struct man_node *nn;
385 struct tag *t;
386 int i;
387 struct htmlpair tagi, tagb, *tagp;
388
389 PAIR_CLASS_INIT(&tagi, "italic");
390 PAIR_CLASS_INIT(&tagb, "bold");
391
392 for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
393 switch (n->tok) {
394 case (MAN_BI):
395 tagp = i % 2 ? &tagi : &tagb;
396 break;
397 case (MAN_IB):
398 tagp = i % 2 ? &tagb : &tagi;
399 break;
400 case (MAN_RI):
401 tagp = i % 2 ? &tagi : NULL;
402 break;
403 case (MAN_IR):
404 tagp = i % 2 ? NULL : &tagi;
405 break;
406 case (MAN_BR):
407 tagp = i % 2 ? NULL : &tagb;
408 break;
409 case (MAN_RB):
410 tagp = i % 2 ? &tagb : NULL;
411 break;
412 default:
413 abort();
414 /* NOTREACHED */
415 }
416
417 if (i)
418 h->flags |= HTML_NOSPACE;
419
420 if (tagp) {
421 t = print_otag(h, TAG_SPAN, 1, tagp);
422 print_man_node(m, nn, h);
423 print_tagq(h, t);
424 } else
425 print_man_node(m, nn, h);
426 }
427
428 return(0);
429}
430
431
432/* ARGSUSED */
433static int
434man_SB_pre(MAN_ARGS)
435{
436 struct htmlpair tag;
437
438 PAIR_CLASS_INIT(&tag, "small bold");
439 print_otag(h, TAG_SPAN, 1, &tag);
440 return(1);
441}
442
443
444/* ARGSUSED */
445static int
446man_SM_pre(MAN_ARGS)
447{
448 struct htmlpair tag;
449
450 PAIR_CLASS_INIT(&tag, "small");
451 print_otag(h, TAG_SPAN, 1, &tag);
452 return(1);
453}
454
455
456/* ARGSUSED */
457static int
458man_SS_pre(MAN_ARGS)
459{
460 struct htmlpair tag[3];
461 struct roffsu su;
462
463 SCALE_VS_INIT(&su, 1);
464
465 if (MAN_BODY == n->type) {
466 PAIR_CLASS_INIT(&tag[0], "ssec-body");
467 if (n->parent->next && n->child) {
468 bufcat_su(h, "margin-bottom", &su);
469 PAIR_STYLE_INIT(&tag[1], h);
470 print_otag(h, TAG_DIV, 2, tag);
471 return(1);
472 }
473
474 print_otag(h, TAG_DIV, 1, tag);
475 return(1);
476 } else if (MAN_BLOCK == n->type) {
477 PAIR_CLASS_INIT(&tag[0], "ssec-block");
478 if (n->prev && MAN_SS == n->prev->tok)
479 if (n->prev->body->child) {
480 bufcat_su(h, "margin-top", &su);
481 PAIR_STYLE_INIT(&tag[1], h);
482 print_otag(h, TAG_DIV, 2, tag);
483 return(1);
484 }
485
486 print_otag(h, TAG_DIV, 1, tag);
487 return(1);
488 }
489
490 SCALE_HS_INIT(&su, INDENT - HALFINDENT);
491 bufcat_su(h, "margin-left", &su);
492 PAIR_CLASS_INIT(&tag[0], "ssec-head");
493 PAIR_STYLE_INIT(&tag[1], h);
494 print_otag(h, TAG_DIV, 2, tag);
495 return(1);
496}
497
498
499/* ARGSUSED */
500static int
501man_PP_pre(MAN_ARGS)
502{
503 struct htmlpair tag;
504 struct roffsu su;
505 int i;
506
507 if (MAN_BLOCK != n->type)
508 return(1);
509
510 i = 0;
511
512 if (MAN_ROOT == n->parent->tok) {
513 SCALE_HS_INIT(&su, INDENT);
514 bufcat_su(h, "margin-left", &su);
515 i++;
516 }
517 if (n->next && n->next->child) {
518 SCALE_VS_INIT(&su, 1);
519 bufcat_su(h, "margin-bottom", &su);
520 i++;
521 }
522
523 PAIR_STYLE_INIT(&tag, h);
524 print_otag(h, TAG_DIV, i ? 1 : 0, &tag);
525 return(1);
526}
527
528
529/* ARGSUSED */
530static int
531man_IP_pre(MAN_ARGS)
532{
533 struct roffsu su;
534 struct htmlpair tag;
535 const struct man_node *nn;
536 int width;
537
538 /*
539 * This scattering of 1-BU margins and pads is to make sure that
540 * when text overruns its box, the subsequent text isn't flush
541 * up against it. However, the rest of the right-hand box must
542 * also be adjusted in consideration of this 1-BU space.
543 */
544
545 if (MAN_BODY == n->type) {
546 SCALE_HS_INIT(&su, INDENT);
547 bufcat_su(h, "margin-left", &su);
548 PAIR_STYLE_INIT(&tag, h);
549 print_otag(h, TAG_DIV, 1, &tag);
550 return(1);
551 }
552
553 nn = MAN_BLOCK == n->type ?
554 n->head->child : n->parent->head->child;
555
556 SCALE_HS_INIT(&su, INDENT);
557 width = 0;
558
559 if (MAN_IP == n->tok && NULL != nn)
560 if (NULL != (nn = nn->next)) {
561 for ( ; nn->next; nn = nn->next)
562 /* Do nothing. */ ;
563 width = a2width(nn, &su);
564 }
565
566 if (MAN_TP == n->tok && NULL != nn)
567 width = a2width(nn, &su);
568
569 if (MAN_BLOCK == n->type) {
570 bufcat_su(h, "margin-left", &su);
571 SCALE_VS_INIT(&su, 1);
572 bufcat_su(h, "margin-top", &su);
573 bufcat_style(h, "clear", "both");
574 PAIR_STYLE_INIT(&tag, h);
575 print_otag(h, TAG_DIV, 1, &tag);
576 return(1);
577 }
578
579 bufcat_su(h, "min-width", &su);
580 SCALE_INVERT(&su);
581 bufcat_su(h, "margin-left", &su);
582 SCALE_HS_INIT(&su, 1);
583 bufcat_su(h, "margin-right", &su);
584 bufcat_style(h, "clear", "left");
585
586 if (n->next && n->next->child)
587 bufcat_style(h, "float", "left");
588
589 PAIR_STYLE_INIT(&tag, h);
590 print_otag(h, TAG_DIV, 1, &tag);
591
592 /* With a length string, manually omit the last child. */
593
594 if ( ! width)
595 return(1);
596
597 if (MAN_IP == n->tok)
598 for (nn = n->child; nn->next; nn = nn->next)
599 print_man_node(m, nn, h);
600 if (MAN_TP == n->tok)
601 for (nn = n->child->next; nn; nn = nn->next)
602 print_man_node(m, nn, h);
603
604 return(0);
605}
606
607
608/* ARGSUSED */
609static int
610man_HP_pre(MAN_ARGS)
611{
612 const struct man_node *nn;
613 struct htmlpair tag;
614 struct roffsu su;
615
616 if (MAN_HEAD == n->type)
617 return(0);
618
619 nn = MAN_BLOCK == n->type ?
620 n->head->child : n->parent->head->child;
621
622 SCALE_HS_INIT(&su, INDENT);
623
624 if (NULL != nn)
625 (void)a2width(nn, &su);
626
627 if (MAN_BLOCK == n->type) {
628 bufcat_su(h, "margin-left", &su);
629 SCALE_VS_INIT(&su, 1);
630 bufcat_su(h, "margin-top", &su);
631 bufcat_style(h, "clear", "both");
632 PAIR_STYLE_INIT(&tag, h);
633 print_otag(h, TAG_DIV, 1, &tag);
634 return(1);
635 }
636
637 bufcat_su(h, "margin-left", &su);
638 SCALE_INVERT(&su);
639 bufcat_su(h, "text-indent", &su);
640
641 PAIR_STYLE_INIT(&tag, h);
642 print_otag(h, TAG_DIV, 1, &tag);
643 return(1);
644}
645
646
647/* ARGSUSED */
648static int
649man_B_pre(MAN_ARGS)
650{
651 struct htmlpair tag;
652
653 PAIR_CLASS_INIT(&tag, "bold");
654 print_otag(h, TAG_SPAN, 1, &tag);
655 return(1);
656}
657
658
659/* ARGSUSED */
660static int
661man_I_pre(MAN_ARGS)
662{
663 struct htmlpair tag;
664
665 PAIR_CLASS_INIT(&tag, "italic");
666 print_otag(h, TAG_SPAN, 1, &tag);
667 return(1);
668}
669
670
671/* ARGSUSED */
672static int
673man_ign_pre(MAN_ARGS)
674{
675
676 return(0);
677}
678
679
680/* ARGSUSED */
681static int
682man_RS_pre(MAN_ARGS)
683{
684 struct htmlpair tag;
685 struct roffsu su;
686
687 if (MAN_HEAD == n->type)
688 return(0);
689 else if (MAN_BODY == n->type)
690 return(1);
691
692 SCALE_HS_INIT(&su, INDENT);
693 bufcat_su(h, "margin-left", &su);
694
695 if (n->head->child) {
696 SCALE_VS_INIT(&su, 1);
697 a2width(n->head->child, &su);
698 bufcat_su(h, "margin-top", &su);
699 }
700
701 PAIR_STYLE_INIT(&tag, h);
702 print_otag(h, TAG_DIV, 1, &tag);
703 return(1);
704}
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