1 /* $Id: man_html.c,v 1.143 2017/06/08 12:54:58 schwarze Exp $ */
3 * Copyright (c) 2008-2012, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
4 * Copyright (c) 2013, 2014, 2015, 2017 Ingo Schwarze <schwarze@openbsd.org>
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20 #include <sys/types.h>
28 #include "mandoc_aux.h"
35 /* FIXME: have PD set the default vspace width. */
39 #define MAN_ARGS const struct roff_meta *man, \
40 const struct roff_node *n, \
45 int (*post)(MAN_ARGS);
48 static void print_bvspace(struct html *,
49 const struct roff_node *);
50 static void print_man_head(MAN_ARGS);
51 static void print_man_nodelist(MAN_ARGS);
52 static void print_man_node(MAN_ARGS);
53 static int fillmode(struct html *, int);
54 static int a2width(const struct roff_node *,
56 static int man_B_pre(MAN_ARGS);
57 static int man_HP_pre(MAN_ARGS);
58 static int man_IP_pre(MAN_ARGS);
59 static int man_I_pre(MAN_ARGS);
60 static int man_OP_pre(MAN_ARGS);
61 static int man_PP_pre(MAN_ARGS);
62 static int man_RS_pre(MAN_ARGS);
63 static int man_SH_pre(MAN_ARGS);
64 static int man_SM_pre(MAN_ARGS);
65 static int man_SS_pre(MAN_ARGS);
66 static int man_UR_pre(MAN_ARGS);
67 static int man_alt_pre(MAN_ARGS);
68 static int man_ign_pre(MAN_ARGS);
69 static int man_in_pre(MAN_ARGS);
70 static void man_root_post(MAN_ARGS);
71 static void man_root_pre(MAN_ARGS);
73 static const struct htmlman __mans[MAN_MAX - MAN_TH] = {
74 { NULL, NULL }, /* TH */
75 { man_SH_pre, NULL }, /* SH */
76 { man_SS_pre, NULL }, /* SS */
77 { man_IP_pre, NULL }, /* TP */
78 { man_PP_pre, NULL }, /* LP */
79 { man_PP_pre, NULL }, /* PP */
80 { man_PP_pre, NULL }, /* P */
81 { man_IP_pre, NULL }, /* IP */
82 { man_HP_pre, NULL }, /* HP */
83 { man_SM_pre, NULL }, /* SM */
84 { man_SM_pre, NULL }, /* SB */
85 { man_alt_pre, NULL }, /* BI */
86 { man_alt_pre, NULL }, /* IB */
87 { man_alt_pre, NULL }, /* BR */
88 { man_alt_pre, NULL }, /* RB */
89 { NULL, NULL }, /* R */
90 { man_B_pre, NULL }, /* B */
91 { man_I_pre, NULL }, /* I */
92 { man_alt_pre, NULL }, /* IR */
93 { man_alt_pre, NULL }, /* RI */
94 { NULL, NULL }, /* nf */
95 { NULL, NULL }, /* fi */
96 { NULL, NULL }, /* RE */
97 { man_RS_pre, NULL }, /* RS */
98 { man_ign_pre, NULL }, /* DT */
99 { man_ign_pre, NULL }, /* UC */
100 { man_ign_pre, NULL }, /* PD */
101 { man_ign_pre, NULL }, /* AT */
102 { man_in_pre, NULL }, /* in */
103 { man_OP_pre, NULL }, /* OP */
104 { NULL, NULL }, /* EX */
105 { NULL, NULL }, /* EE */
106 { man_UR_pre, NULL }, /* UR */
107 { NULL, NULL }, /* UE */
109 static const struct htmlman *const mans = __mans - MAN_TH;
113 * Printing leading vertical space before a block.
114 * This is used for the paragraph macros.
115 * The rules are pretty simple, since there's very little nesting going
116 * on here. Basically, if we're the first within another block (SS/SH),
117 * then don't emit vertical space. If we are (RS), then do. If not the
121 print_bvspace(struct html *h, const struct roff_node *n)
124 if (n->body && n->body->child)
125 if (n->body->child->type == ROFFT_TBL)
128 if (n->parent->type == ROFFT_ROOT || n->parent->tok != MAN_RS)
136 html_man(void *arg, const struct roff_man *man)
141 h = (struct html *)arg;
143 if ((h->oflags & HTML_FRAGMENT) == 0) {
145 print_otag(h, TAG_HTML, "");
146 t = print_otag(h, TAG_HEAD, "");
147 print_man_head(&man->meta, man->first, h);
149 print_otag(h, TAG_BODY, "");
152 man_root_pre(&man->meta, man->first, h);
153 t = print_otag(h, TAG_DIV, "c", "manual-text");
154 print_man_nodelist(&man->meta, man->first->child, h);
156 man_root_post(&man->meta, man->first, h);
161 print_man_head(MAN_ARGS)
166 mandoc_asprintf(&cp, "%s(%s)", man->title, man->msec);
167 print_otag(h, TAG_TITLE, "");
173 print_man_nodelist(MAN_ARGS)
177 print_man_node(man, n, h);
183 print_man_node(MAN_ARGS)
185 static int want_fillmode = MAN_fi;
186 static int save_fillmode;
192 * Handle fill mode switch requests up front,
193 * they would just cause trouble in the subsequent code.
199 want_fillmode = MAN_nf;
203 want_fillmode = MAN_fi;
204 if (fillmode(h, 0) == MAN_fi)
205 print_otag(h, TAG_BR, "");
211 /* Set up fill mode for the upcoming node. */
216 /* Some block macros suspend or cancel .nf. */
218 case MAN_TP: /* Tagged paragraphs */
219 case MAN_IP: /* temporarily disable .nf */
220 case MAN_HP: /* for the head. */
221 save_fillmode = want_fillmode;
223 case MAN_SH: /* Section headers */
224 case MAN_SS: /* permanently cancel .nf. */
225 want_fillmode = MAN_fi;
227 case MAN_PP: /* These have no head. */
228 case MAN_LP: /* They will simply */
229 case MAN_P: /* reopen .nf in the body. */
243 * Some in-line macros produce tags and/or text
244 * in the handler, so they require fill mode to be
245 * configured up front just like for text nodes.
246 * For the others, keep the traditional approach
247 * of doing the same, for now.
249 fillmode(h, want_fillmode);
252 if (fillmode(h, want_fillmode) == MAN_fi &&
253 want_fillmode == MAN_fi &&
254 n->flags & NODE_LINE && *n->string == ' ' &&
255 (h->flags & HTML_NONEWLINE) == 0)
256 print_otag(h, TAG_BR, "");
257 if (*n->string != '\0')
265 /* Produce output for this node. */
271 print_text(h, n->string);
275 print_eqn(h, n->eqn);
279 * This will take care of initialising all of the table
280 * state data for the first table, then tearing it down
283 print_tbl(h, n->span);
287 * Close out scope of font prior to opening a macro
290 if (HTMLFONT_NONE != h->metac) {
292 h->metac = HTMLFONT_NONE;
296 * Close out the current table, if it's open, and unset
297 * the "meta" table state. This will be reopened on the
298 * next table element.
304 if (n->tok < ROFF_MAX) {
310 assert(n->tok >= MAN_TH && n->tok < MAN_MAX);
311 if (mans[n->tok].pre)
312 child = (*mans[n->tok].pre)(man, n, h);
314 /* Some block macros resume .nf in the body. */
315 if (save_fillmode && n->type == ROFFT_BODY)
316 want_fillmode = save_fillmode;
321 if (child && n->child)
322 print_man_nodelist(man, n->child, h);
324 /* This will automatically close out any font scope. */
327 if (fillmode(h, 0) == MAN_nf &&
328 n->next != NULL && n->next->flags & NODE_LINE)
333 * MAN_nf switches to no-fill mode, MAN_fi to fill mode.
334 * Other arguments do not switch.
335 * The old mode is returned.
338 fillmode(struct html *h, int want)
343 for (pre = h->tag; pre != NULL; pre = pre->next)
344 if (pre->tag == TAG_PRE)
347 had = pre == NULL ? MAN_fi : MAN_nf;
349 if (want && want != had) {
351 print_otag(h, TAG_PRE, "");
359 a2width(const struct roff_node *n, struct roffsu *su)
361 if (n->type != ROFFT_TEXT)
363 return a2roffsu(n->string, su, SCALE_EN) != NULL;
367 man_root_pre(MAN_ARGS)
374 mandoc_asprintf(&title, "%s(%s)", man->title, man->msec);
376 t = print_otag(h, TAG_TABLE, "c", "head");
377 tt = print_otag(h, TAG_TR, "");
379 print_otag(h, TAG_TD, "c", "head-ltitle");
380 print_text(h, title);
383 print_otag(h, TAG_TD, "c", "head-vol");
384 if (NULL != man->vol)
385 print_text(h, man->vol);
388 print_otag(h, TAG_TD, "c", "head-rtitle");
389 print_text(h, title);
395 man_root_post(MAN_ARGS)
399 t = print_otag(h, TAG_TABLE, "c", "foot");
400 tt = print_otag(h, TAG_TR, "");
402 print_otag(h, TAG_TD, "c", "foot-date");
403 print_text(h, man->date);
406 print_otag(h, TAG_TD, "c", "foot-os");
408 print_text(h, man->os);
417 if (n->type == ROFFT_HEAD) {
418 id = html_make_id(n);
419 print_otag(h, TAG_H1, "cTi", "Sh", id);
421 print_otag(h, TAG_A, "chR", "selflink", id);
428 man_alt_pre(MAN_ARGS)
430 const struct roff_node *nn;
435 for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
438 fp = i % 2 ? TAG_I : TAG_B;
441 fp = i % 2 ? TAG_B : TAG_I;
444 fp = i % 2 ? TAG_I : TAG_MAX;
447 fp = i % 2 ? TAG_MAX : TAG_I;
450 fp = i % 2 ? TAG_MAX : TAG_B;
453 fp = i % 2 ? TAG_B : TAG_MAX;
460 h->flags |= HTML_NOSPACE;
463 t = print_otag(h, fp, "");
465 print_text(h, nn->string);
476 print_otag(h, TAG_SMALL, "");
477 if (MAN_SB == n->tok)
478 print_otag(h, TAG_B, "");
487 if (n->type == ROFFT_HEAD) {
488 id = html_make_id(n);
489 print_otag(h, TAG_H2, "cTi", "Ss", id);
491 print_otag(h, TAG_A, "chR", "selflink", id);
501 if (n->type == ROFFT_HEAD)
503 else if (n->type == ROFFT_BLOCK)
512 const struct roff_node *nn;
514 if (n->type == ROFFT_BODY) {
515 print_otag(h, TAG_DD, "c", "It-tag");
517 } else if (n->type != ROFFT_HEAD) {
518 print_otag(h, TAG_DL, "c", "Bl-tag");
522 /* FIXME: width specification. */
524 print_otag(h, TAG_DT, "c", "It-tag");
526 /* For IP, only print the first header element. */
528 if (MAN_IP == n->tok && n->child)
529 print_man_node(man, n->child, h);
531 /* For TP, only print next-line header elements. */
533 if (MAN_TP == n->tok) {
535 while (NULL != nn && 0 == (NODE_LINE & nn->flags))
538 print_man_node(man, nn, h);
549 struct roffsu sum, sui;
550 const struct roff_node *np;
552 if (n->type == ROFFT_HEAD)
554 else if (n->type != ROFFT_BLOCK)
559 if (np == NULL || !a2width(np, &sum))
560 SCALE_HS_INIT(&sum, INDENT);
563 sui.scale = -sum.scale;
566 print_otag(h, TAG_DIV, "csului", "Pp", &sum, &sui);
576 h->flags |= HTML_NOSPACE;
577 tt = print_otag(h, TAG_SPAN, "c", "Op");
579 if (NULL != (n = n->child)) {
580 print_otag(h, TAG_B, "");
581 print_text(h, n->string);
586 if (NULL != n && NULL != n->next) {
587 print_otag(h, TAG_I, "");
588 print_text(h, n->next->string);
592 h->flags |= HTML_NOSPACE;
600 print_otag(h, TAG_B, "");
607 print_otag(h, TAG_I, "");
614 print_otag(h, TAG_BR, "");
619 man_ign_pre(MAN_ARGS)
630 if (n->type == ROFFT_HEAD)
632 else if (n->type == ROFFT_BODY)
635 SCALE_HS_INIT(&su, INDENT);
637 a2width(n->head->child, &su);
639 print_otag(h, TAG_DIV, "sul", &su);
647 assert(n->type == ROFFT_HEAD);
648 if (n->child != NULL) {
649 assert(n->child->type == ROFFT_TEXT);
650 print_otag(h, TAG_A, "cTh", "Lk", n->child->string);
653 assert(n->next->type == ROFFT_BODY);
654 if (n->next->child != NULL)
657 print_man_nodelist(man, n->child, h);