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Wrangle mdoc_args() and mdoc_zargs() to use enum return type.
[mandoc.git] / mdoc_term.c
1 /* $Id: mdoc_term.c,v 1.117 2010/04/08 08:17:55 kristaps Exp $ */
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 #ifdef HAVE_CONFIG_H
18 #include "config.h"
19 #endif
20
21 #include <sys/types.h>
22
23 #include <assert.h>
24 #include <ctype.h>
25 #include <stdio.h>
26 #include <stdlib.h>
27 #include <string.h>
28
29 #include "out.h"
30 #include "term.h"
31 #include "mdoc.h"
32 #include "chars.h"
33 #include "main.h"
34
35 #define INDENT 5
36 #define HALFINDENT 3
37
38 struct termpair {
39 struct termpair *ppair;
40 int count;
41 };
42
43 #define DECL_ARGS struct termp *p, \
44 struct termpair *pair, \
45 const struct mdoc_meta *m, \
46 const struct mdoc_node *n
47
48 struct termact {
49 int (*pre)(DECL_ARGS);
50 void (*post)(DECL_ARGS);
51 };
52
53 static size_t a2width(const struct mdoc_argv *, int);
54 static size_t a2height(const struct mdoc_node *);
55 static size_t a2offs(const struct mdoc_argv *);
56
57 static int arg_hasattr(int, const struct mdoc_node *);
58 static int arg_getattrs(const int *, int *, size_t,
59 const struct mdoc_node *);
60 static int arg_getattr(int, const struct mdoc_node *);
61 static int arg_listtype(const struct mdoc_node *);
62 static void print_bvspace(struct termp *,
63 const struct mdoc_node *,
64 const struct mdoc_node *);
65 static void print_mdoc_node(DECL_ARGS);
66 static void print_mdoc_head(DECL_ARGS);
67 static void print_mdoc_nodelist(DECL_ARGS);
68 static void print_foot(DECL_ARGS);
69
70 static void termp____post(DECL_ARGS);
71 static void termp_an_post(DECL_ARGS);
72 static void termp_aq_post(DECL_ARGS);
73 static void termp_bd_post(DECL_ARGS);
74 static void termp_bl_post(DECL_ARGS);
75 static void termp_bq_post(DECL_ARGS);
76 static void termp_brq_post(DECL_ARGS);
77 static void termp_bx_post(DECL_ARGS);
78 static void termp_d1_post(DECL_ARGS);
79 static void termp_dq_post(DECL_ARGS);
80 static void termp_fd_post(DECL_ARGS);
81 static void termp_fn_post(DECL_ARGS);
82 static void termp_fo_post(DECL_ARGS);
83 static void termp_ft_post(DECL_ARGS);
84 static void termp_in_post(DECL_ARGS);
85 static void termp_it_post(DECL_ARGS);
86 static void termp_lb_post(DECL_ARGS);
87 static void termp_op_post(DECL_ARGS);
88 static void termp_pf_post(DECL_ARGS);
89 static void termp_pq_post(DECL_ARGS);
90 static void termp_qq_post(DECL_ARGS);
91 static void termp_sh_post(DECL_ARGS);
92 static void termp_sq_post(DECL_ARGS);
93 static void termp_ss_post(DECL_ARGS);
94 static void termp_vt_post(DECL_ARGS);
95
96 static int termp_an_pre(DECL_ARGS);
97 static int termp_ap_pre(DECL_ARGS);
98 static int termp_aq_pre(DECL_ARGS);
99 static int termp_bd_pre(DECL_ARGS);
100 static int termp_bf_pre(DECL_ARGS);
101 static int termp_bl_pre(DECL_ARGS);
102 static int termp_bold_pre(DECL_ARGS);
103 static int termp_bq_pre(DECL_ARGS);
104 static int termp_brq_pre(DECL_ARGS);
105 static int termp_bt_pre(DECL_ARGS);
106 static int termp_cd_pre(DECL_ARGS);
107 static int termp_d1_pre(DECL_ARGS);
108 static int termp_dq_pre(DECL_ARGS);
109 static int termp_ex_pre(DECL_ARGS);
110 static int termp_fa_pre(DECL_ARGS);
111 static int termp_fl_pre(DECL_ARGS);
112 static int termp_fn_pre(DECL_ARGS);
113 static int termp_fo_pre(DECL_ARGS);
114 static int termp_ft_pre(DECL_ARGS);
115 static int termp_in_pre(DECL_ARGS);
116 static int termp_it_pre(DECL_ARGS);
117 static int termp_li_pre(DECL_ARGS);
118 static int termp_lk_pre(DECL_ARGS);
119 static int termp_nd_pre(DECL_ARGS);
120 static int termp_nm_pre(DECL_ARGS);
121 static int termp_ns_pre(DECL_ARGS);
122 static int termp_op_pre(DECL_ARGS);
123 static int termp_pf_pre(DECL_ARGS);
124 static int termp_pq_pre(DECL_ARGS);
125 static int termp_qq_pre(DECL_ARGS);
126 static int termp_rs_pre(DECL_ARGS);
127 static int termp_rv_pre(DECL_ARGS);
128 static int termp_sh_pre(DECL_ARGS);
129 static int termp_sm_pre(DECL_ARGS);
130 static int termp_sp_pre(DECL_ARGS);
131 static int termp_sq_pre(DECL_ARGS);
132 static int termp_ss_pre(DECL_ARGS);
133 static int termp_under_pre(DECL_ARGS);
134 static int termp_ud_pre(DECL_ARGS);
135 static int termp_vt_pre(DECL_ARGS);
136 static int termp_xr_pre(DECL_ARGS);
137 static int termp_xx_pre(DECL_ARGS);
138
139 static const struct termact termacts[MDOC_MAX] = {
140 { termp_ap_pre, NULL }, /* Ap */
141 { NULL, NULL }, /* Dd */
142 { NULL, NULL }, /* Dt */
143 { NULL, NULL }, /* Os */
144 { termp_sh_pre, termp_sh_post }, /* Sh */
145 { termp_ss_pre, termp_ss_post }, /* Ss */
146 { termp_sp_pre, NULL }, /* Pp */
147 { termp_d1_pre, termp_d1_post }, /* D1 */
148 { termp_d1_pre, termp_d1_post }, /* Dl */
149 { termp_bd_pre, termp_bd_post }, /* Bd */
150 { NULL, NULL }, /* Ed */
151 { termp_bl_pre, termp_bl_post }, /* Bl */
152 { NULL, NULL }, /* El */
153 { termp_it_pre, termp_it_post }, /* It */
154 { NULL, NULL }, /* Ad */
155 { termp_an_pre, termp_an_post }, /* An */
156 { termp_under_pre, NULL }, /* Ar */
157 { termp_cd_pre, NULL }, /* Cd */
158 { termp_bold_pre, NULL }, /* Cm */
159 { NULL, NULL }, /* Dv */
160 { NULL, NULL }, /* Er */
161 { NULL, NULL }, /* Ev */
162 { termp_ex_pre, NULL }, /* Ex */
163 { termp_fa_pre, NULL }, /* Fa */
164 { termp_bold_pre, termp_fd_post }, /* Fd */
165 { termp_fl_pre, NULL }, /* Fl */
166 { termp_fn_pre, termp_fn_post }, /* Fn */
167 { termp_ft_pre, termp_ft_post }, /* Ft */
168 { termp_bold_pre, NULL }, /* Ic */
169 { termp_in_pre, termp_in_post }, /* In */
170 { termp_li_pre, NULL }, /* Li */
171 { termp_nd_pre, NULL }, /* Nd */
172 { termp_nm_pre, NULL }, /* Nm */
173 { termp_op_pre, termp_op_post }, /* Op */
174 { NULL, NULL }, /* Ot */
175 { termp_under_pre, NULL }, /* Pa */
176 { termp_rv_pre, NULL }, /* Rv */
177 { NULL, NULL }, /* St */
178 { termp_under_pre, NULL }, /* Va */
179 { termp_vt_pre, termp_vt_post }, /* Vt */
180 { termp_xr_pre, NULL }, /* Xr */
181 { NULL, termp____post }, /* %A */
182 { termp_under_pre, termp____post }, /* %B */
183 { NULL, termp____post }, /* %D */
184 { termp_under_pre, termp____post }, /* %I */
185 { termp_under_pre, termp____post }, /* %J */
186 { NULL, termp____post }, /* %N */
187 { NULL, termp____post }, /* %O */
188 { NULL, termp____post }, /* %P */
189 { NULL, termp____post }, /* %R */
190 { termp_under_pre, termp____post }, /* %T */
191 { NULL, termp____post }, /* %V */
192 { NULL, NULL }, /* Ac */
193 { termp_aq_pre, termp_aq_post }, /* Ao */
194 { termp_aq_pre, termp_aq_post }, /* Aq */
195 { NULL, NULL }, /* At */
196 { NULL, NULL }, /* Bc */
197 { termp_bf_pre, NULL }, /* Bf */
198 { termp_bq_pre, termp_bq_post }, /* Bo */
199 { termp_bq_pre, termp_bq_post }, /* Bq */
200 { termp_xx_pre, NULL }, /* Bsx */
201 { NULL, termp_bx_post }, /* Bx */
202 { NULL, NULL }, /* Db */
203 { NULL, NULL }, /* Dc */
204 { termp_dq_pre, termp_dq_post }, /* Do */
205 { termp_dq_pre, termp_dq_post }, /* Dq */
206 { NULL, NULL }, /* Ec */ /* FIXME: no space */
207 { NULL, NULL }, /* Ef */
208 { termp_under_pre, NULL }, /* Em */
209 { NULL, NULL }, /* Eo */
210 { termp_xx_pre, NULL }, /* Fx */
211 { termp_bold_pre, NULL }, /* Ms */ /* FIXME: convert to symbol? */
212 { NULL, NULL }, /* No */
213 { termp_ns_pre, NULL }, /* Ns */
214 { termp_xx_pre, NULL }, /* Nx */
215 { termp_xx_pre, NULL }, /* Ox */
216 { NULL, NULL }, /* Pc */
217 { termp_pf_pre, termp_pf_post }, /* Pf */
218 { termp_pq_pre, termp_pq_post }, /* Po */
219 { termp_pq_pre, termp_pq_post }, /* Pq */
220 { NULL, NULL }, /* Qc */
221 { termp_sq_pre, termp_sq_post }, /* Ql */
222 { termp_qq_pre, termp_qq_post }, /* Qo */
223 { termp_qq_pre, termp_qq_post }, /* Qq */
224 { NULL, NULL }, /* Re */
225 { termp_rs_pre, NULL }, /* Rs */
226 { NULL, NULL }, /* Sc */
227 { termp_sq_pre, termp_sq_post }, /* So */
228 { termp_sq_pre, termp_sq_post }, /* Sq */
229 { termp_sm_pre, NULL }, /* Sm */
230 { termp_under_pre, NULL }, /* Sx */
231 { termp_bold_pre, NULL }, /* Sy */
232 { NULL, NULL }, /* Tn */
233 { termp_xx_pre, NULL }, /* Ux */
234 { NULL, NULL }, /* Xc */
235 { NULL, NULL }, /* Xo */
236 { termp_fo_pre, termp_fo_post }, /* Fo */
237 { NULL, NULL }, /* Fc */
238 { termp_op_pre, termp_op_post }, /* Oo */
239 { NULL, NULL }, /* Oc */
240 { NULL, NULL }, /* Bk */
241 { NULL, NULL }, /* Ek */
242 { termp_bt_pre, NULL }, /* Bt */
243 { NULL, NULL }, /* Hf */
244 { NULL, NULL }, /* Fr */
245 { termp_ud_pre, NULL }, /* Ud */
246 { NULL, termp_lb_post }, /* Lb */
247 { termp_sp_pre, NULL }, /* Lp */
248 { termp_lk_pre, NULL }, /* Lk */
249 { termp_under_pre, NULL }, /* Mt */
250 { termp_brq_pre, termp_brq_post }, /* Brq */
251 { termp_brq_pre, termp_brq_post }, /* Bro */
252 { NULL, NULL }, /* Brc */
253 { NULL, termp____post }, /* %C */
254 { NULL, NULL }, /* Es */ /* TODO */
255 { NULL, NULL }, /* En */ /* TODO */
256 { termp_xx_pre, NULL }, /* Dx */
257 { NULL, termp____post }, /* %Q */
258 { termp_sp_pre, NULL }, /* br */
259 { termp_sp_pre, NULL }, /* sp */
260 { termp_under_pre, termp____post }, /* %U */
261 };
262
263
264 void
265 terminal_mdoc(void *arg, const struct mdoc *mdoc)
266 {
267 const struct mdoc_node *n;
268 const struct mdoc_meta *m;
269 struct termp *p;
270
271 p = (struct termp *)arg;
272
273 p->overstep = 0;
274 p->maxrmargin = 78;
275
276 if (NULL == p->symtab)
277 switch (p->enc) {
278 case (TERMENC_ASCII):
279 p->symtab = chars_init(CHARS_ASCII);
280 break;
281 default:
282 abort();
283 /* NOTREACHED */
284 }
285
286 n = mdoc_node(mdoc);
287 m = mdoc_meta(mdoc);
288
289 print_mdoc_head(p, NULL, m, n);
290 if (n->child)
291 print_mdoc_nodelist(p, NULL, m, n->child);
292 print_foot(p, NULL, m, n);
293 }
294
295
296 static void
297 print_mdoc_nodelist(DECL_ARGS)
298 {
299
300 print_mdoc_node(p, pair, m, n);
301 if (n->next)
302 print_mdoc_nodelist(p, pair, m, n->next);
303 }
304
305
306 /* ARGSUSED */
307 static void
308 print_mdoc_node(DECL_ARGS)
309 {
310 int chld;
311 const void *font;
312 struct termpair npair;
313 size_t offset, rmargin;
314
315 chld = 1;
316 offset = p->offset;
317 rmargin = p->rmargin;
318 font = term_fontq(p);
319
320 memset(&npair, 0, sizeof(struct termpair));
321 npair.ppair = pair;
322
323 if (MDOC_TEXT != n->type) {
324 if (termacts[n->tok].pre)
325 chld = (*termacts[n->tok].pre)(p, &npair, m, n);
326 } else
327 term_word(p, n->string);
328
329 if (chld && n->child)
330 print_mdoc_nodelist(p, &npair, m, n->child);
331
332 term_fontpopq(p, font);
333
334 if (MDOC_TEXT != n->type)
335 if (termacts[n->tok].post)
336 (*termacts[n->tok].post)(p, &npair, m, n);
337
338 p->offset = offset;
339 p->rmargin = rmargin;
340 }
341
342
343 /* ARGSUSED */
344 static void
345 print_foot(DECL_ARGS)
346 {
347 char buf[DATESIZ], os[BUFSIZ];
348
349 term_fontrepl(p, TERMFONT_NONE);
350
351 /*
352 * Output the footer in new-groff style, that is, three columns
353 * with the middle being the manual date and flanking columns
354 * being the operating system:
355 *
356 * SYSTEM DATE SYSTEM
357 */
358
359 time2a(m->date, buf, DATESIZ);
360 strlcpy(os, m->os, BUFSIZ);
361
362 term_vspace(p);
363
364 p->offset = 0;
365 p->rmargin = (p->maxrmargin - strlen(buf) + 1) / 2;
366 p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
367
368 term_word(p, os);
369 term_flushln(p);
370
371 p->offset = p->rmargin;
372 p->rmargin = p->maxrmargin - strlen(os);
373 p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
374
375 term_word(p, buf);
376 term_flushln(p);
377
378 p->offset = p->rmargin;
379 p->rmargin = p->maxrmargin;
380 p->flags &= ~TERMP_NOBREAK;
381 p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
382
383 term_word(p, os);
384 term_flushln(p);
385
386 p->offset = 0;
387 p->rmargin = p->maxrmargin;
388 p->flags = 0;
389 }
390
391
392 /* ARGSUSED */
393 static void
394 print_mdoc_head(DECL_ARGS)
395 {
396 char buf[BUFSIZ], title[BUFSIZ];
397
398 p->rmargin = p->maxrmargin;
399 p->offset = 0;
400
401 /*
402 * The header is strange. It has three components, which are
403 * really two with the first duplicated. It goes like this:
404 *
405 * IDENTIFIER TITLE IDENTIFIER
406 *
407 * The IDENTIFIER is NAME(SECTION), which is the command-name
408 * (if given, or "unknown" if not) followed by the manual page
409 * section. These are given in `Dt'. The TITLE is a free-form
410 * string depending on the manual volume. If not specified, it
411 * switches on the manual section.
412 */
413
414 assert(m->vol);
415 strlcpy(buf, m->vol, BUFSIZ);
416
417 if (m->arch) {
418 strlcat(buf, " (", BUFSIZ);
419 strlcat(buf, m->arch, BUFSIZ);
420 strlcat(buf, ")", BUFSIZ);
421 }
422
423 snprintf(title, BUFSIZ, "%s(%d)", m->title, m->msec);
424
425 p->offset = 0;
426 p->rmargin = (p->maxrmargin - strlen(buf) + 1) / 2;
427 p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
428
429 term_word(p, title);
430 term_flushln(p);
431
432 p->offset = p->rmargin;
433 p->rmargin = p->maxrmargin - strlen(title);
434 p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
435
436 term_word(p, buf);
437 term_flushln(p);
438
439 p->offset = p->rmargin;
440 p->rmargin = p->maxrmargin;
441 p->flags &= ~TERMP_NOBREAK;
442 p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;
443
444 term_word(p, title);
445 term_flushln(p);
446
447 p->offset = 0;
448 p->rmargin = p->maxrmargin;
449 p->flags &= ~TERMP_NOSPACE;
450 }
451
452
453 static size_t
454 a2height(const struct mdoc_node *n)
455 {
456 struct roffsu su;
457
458 assert(MDOC_TEXT == n->type);
459 assert(n->string);
460 if ( ! a2roffsu(n->string, &su, SCALE_VS))
461 SCALE_VS_INIT(&su, strlen(n->string));
462
463 return(term_vspan(&su));
464 }
465
466
467 static size_t
468 a2width(const struct mdoc_argv *arg, int pos)
469 {
470 struct roffsu su;
471
472 assert(arg->value[pos]);
473 if ( ! a2roffsu(arg->value[pos], &su, SCALE_MAX))
474 SCALE_HS_INIT(&su, strlen(arg->value[pos]));
475
476 return(term_hspan(&su));
477 }
478
479
480 static int
481 arg_listtype(const struct mdoc_node *n)
482 {
483 int i, len;
484
485 assert(MDOC_BLOCK == n->type);
486
487 len = (int)(n->args ? n->args->argc : 0);
488
489 for (i = 0; i < len; i++)
490 switch (n->args->argv[i].arg) {
491 case (MDOC_Bullet):
492 /* FALLTHROUGH */
493 case (MDOC_Dash):
494 /* FALLTHROUGH */
495 case (MDOC_Enum):
496 /* FALLTHROUGH */
497 case (MDOC_Hyphen):
498 /* FALLTHROUGH */
499 case (MDOC_Tag):
500 /* FALLTHROUGH */
501 case (MDOC_Inset):
502 /* FALLTHROUGH */
503 case (MDOC_Diag):
504 /* FALLTHROUGH */
505 case (MDOC_Item):
506 /* FALLTHROUGH */
507 case (MDOC_Column):
508 /* FALLTHROUGH */
509 case (MDOC_Hang):
510 /* FALLTHROUGH */
511 case (MDOC_Ohang):
512 return(n->args->argv[i].arg);
513 default:
514 break;
515 }
516
517 return(-1);
518 }
519
520
521 static size_t
522 a2offs(const struct mdoc_argv *arg)
523 {
524 struct roffsu su;
525
526 if ('\0' == arg->value[0][0])
527 return(0);
528 else if (0 == strcmp(arg->value[0], "left"))
529 return(0);
530 else if (0 == strcmp(arg->value[0], "indent"))
531 return(INDENT + 1);
532 else if (0 == strcmp(arg->value[0], "indent-two"))
533 return((INDENT + 1) * 2);
534 else if ( ! a2roffsu(arg->value[0], &su, SCALE_MAX))
535 SCALE_HS_INIT(&su, strlen(arg->value[0]));
536
537 return(term_hspan(&su));
538 }
539
540
541 /*
542 * Return 1 if an argument has a particular argument value or 0 if it
543 * does not. See arg_getattr().
544 */
545 static int
546 arg_hasattr(int arg, const struct mdoc_node *n)
547 {
548
549 return(-1 != arg_getattr(arg, n));
550 }
551
552
553 /*
554 * Get the index of an argument in a node's argument list or -1 if it
555 * does not exist. See arg_getattrs().
556 */
557 static int
558 arg_getattr(int v, const struct mdoc_node *n)
559 {
560 int val;
561
562 return(arg_getattrs(&v, &val, 1, n) ? val : -1);
563 }
564
565
566 /*
567 * Walk through the argument list for a node and fill an array "vals"
568 * with the positions of the argument structures listed in "keys".
569 * Return the number of elements that were written into "vals", which
570 * can be zero.
571 */
572 static int
573 arg_getattrs(const int *keys, int *vals,
574 size_t sz, const struct mdoc_node *n)
575 {
576 int i, j, k;
577
578 if (NULL == n->args)
579 return(0);
580
581 for (k = i = 0; i < (int)n->args->argc; i++)
582 for (j = 0; j < (int)sz; j++)
583 if (n->args->argv[i].arg == keys[j]) {
584 vals[j] = i;
585 k++;
586 }
587 return(k);
588 }
589
590
591 /*
592 * Determine how much space to print out before block elements of `It'
593 * (and thus `Bl') and `Bd'. And then go ahead and print that space,
594 * too.
595 */
596 static void
597 print_bvspace(struct termp *p,
598 const struct mdoc_node *bl,
599 const struct mdoc_node *n)
600 {
601 const struct mdoc_node *nn;
602
603 term_newln(p);
604 if (arg_hasattr(MDOC_Compact, bl))
605 return;
606
607 /* Do not vspace directly after Ss/Sh. */
608
609 for (nn = n; nn; nn = nn->parent) {
610 if (MDOC_BLOCK != nn->type)
611 continue;
612 if (MDOC_Ss == nn->tok)
613 return;
614 if (MDOC_Sh == nn->tok)
615 return;
616 if (NULL == nn->prev)
617 continue;
618 break;
619 }
620
621 /* A `-column' does not assert vspace within the list. */
622
623 if (MDOC_Bl == bl->tok && arg_hasattr(MDOC_Column, bl))
624 if (n->prev && MDOC_It == n->prev->tok)
625 return;
626
627 /* A `-diag' without body does not vspace. */
628
629 if (MDOC_Bl == bl->tok && arg_hasattr(MDOC_Diag, bl))
630 if (n->prev && MDOC_It == n->prev->tok) {
631 assert(n->prev->body);
632 if (NULL == n->prev->body->child)
633 return;
634 }
635
636 term_vspace(p);
637 }
638
639
640 /* ARGSUSED */
641 static int
642 termp_dq_pre(DECL_ARGS)
643 {
644
645 if (MDOC_BODY != n->type)
646 return(1);
647
648 term_word(p, "\\(lq");
649 p->flags |= TERMP_NOSPACE;
650 return(1);
651 }
652
653
654 /* ARGSUSED */
655 static void
656 termp_dq_post(DECL_ARGS)
657 {
658
659 if (MDOC_BODY != n->type)
660 return;
661
662 p->flags |= TERMP_NOSPACE;
663 term_word(p, "\\(rq");
664 }
665
666
667 /* ARGSUSED */
668 static int
669 termp_it_pre(DECL_ARGS)
670 {
671 const struct mdoc_node *bl, *nn;
672 char buf[7];
673 int i, type, keys[3], vals[3];
674 size_t width, offset, ncols, dcol;
675
676 if (MDOC_BLOCK == n->type) {
677 print_bvspace(p, n->parent->parent, n);
678 return(1);
679 }
680
681 bl = n->parent->parent->parent;
682
683 /* Get list width, offset, and list type from argument list. */
684
685 keys[0] = MDOC_Width;
686 keys[1] = MDOC_Offset;
687 keys[2] = MDOC_Column;
688
689 vals[0] = vals[1] = vals[2] = -1;
690
691 arg_getattrs(keys, vals, 3, bl);
692
693 type = arg_listtype(bl);
694 assert(-1 != type);
695
696 /*
697 * First calculate width and offset. This is pretty easy unless
698 * we're a -column list, in which case all prior columns must
699 * be accounted for.
700 */
701
702 width = offset = 0;
703
704 if (vals[1] >= 0)
705 offset = a2offs(&bl->args->argv[vals[1]]);
706
707 switch (type) {
708 case (MDOC_Column):
709 if (MDOC_BODY == n->type)
710 break;
711 /*
712 * Imitate groff's column handling:
713 * - For each earlier column, add its width.
714 * - For less than 5 columns, add four more blanks per
715 * column.
716 * - For exactly 5 columns, add three more blank per
717 * column.
718 * - For more than 5 columns, add only one column.
719 */
720 ncols = bl->args->argv[vals[2]].sz;
721 /* LINTED */
722 dcol = ncols < 5 ? 4 : ncols == 5 ? 3 : 1;
723
724 for (i = 0, nn = n->prev;
725 nn && i < (int)ncols;
726 nn = nn->prev, i++)
727 offset += dcol + a2width
728 (&bl->args->argv[vals[2]], i);
729
730
731 /*
732 * When exceeding the declared number of columns, leave
733 * the remaining widths at 0. This will later be
734 * adjusted to the default width of 10, or, for the last
735 * column, stretched to the right margin.
736 */
737 if (i >= (int)ncols)
738 break;
739
740 /*
741 * Use the declared column widths, extended as explained
742 * in the preceding paragraph.
743 */
744 width = a2width(&bl->args->argv[vals[2]], i) + dcol;
745 break;
746 default:
747 if (vals[0] < 0)
748 break;
749
750 /*
751 * Note: buffer the width by 2, which is groff's magic
752 * number for buffering single arguments. See the above
753 * handling for column for how this changes.
754 */
755 width = a2width(&bl->args->argv[vals[0]], 0) + 2;
756 break;
757 }
758
759 /*
760 * List-type can override the width in the case of fixed-head
761 * values (bullet, dash/hyphen, enum). Tags need a non-zero
762 * offset.
763 */
764
765 switch (type) {
766 case (MDOC_Bullet):
767 /* FALLTHROUGH */
768 case (MDOC_Dash):
769 /* FALLTHROUGH */
770 case (MDOC_Hyphen):
771 if (width < 4)
772 width = 4;
773 break;
774 case (MDOC_Enum):
775 if (width < 5)
776 width = 5;
777 break;
778 case (MDOC_Hang):
779 if (0 == width)
780 width = 8;
781 break;
782 case (MDOC_Column):
783 /* FALLTHROUGH */
784 case (MDOC_Tag):
785 if (0 == width)
786 width = 10;
787 break;
788 default:
789 break;
790 }
791
792 /*
793 * Whitespace control. Inset bodies need an initial space,
794 * while diagonal bodies need two.
795 */
796
797 p->flags |= TERMP_NOSPACE;
798
799 switch (type) {
800 case (MDOC_Diag):
801 if (MDOC_BODY == n->type)
802 term_word(p, "\\ \\ ");
803 break;
804 case (MDOC_Inset):
805 if (MDOC_BODY == n->type)
806 term_word(p, "\\ ");
807 break;
808 default:
809 break;
810 }
811
812 p->flags |= TERMP_NOSPACE;
813
814 switch (type) {
815 case (MDOC_Diag):
816 if (MDOC_HEAD == n->type)
817 term_fontpush(p, TERMFONT_BOLD);
818 break;
819 default:
820 break;
821 }
822
823 /*
824 * Pad and break control. This is the tricky part. These flags
825 * are documented in term_flushln() in term.c. Note that we're
826 * going to unset all of these flags in termp_it_post() when we
827 * exit.
828 */
829
830 switch (type) {
831 case (MDOC_Bullet):
832 /* FALLTHROUGH */
833 case (MDOC_Dash):
834 /* FALLTHROUGH */
835 case (MDOC_Enum):
836 /* FALLTHROUGH */
837 case (MDOC_Hyphen):
838 if (MDOC_HEAD == n->type)
839 p->flags |= TERMP_NOBREAK;
840 else
841 p->flags |= TERMP_NOLPAD;
842 break;
843 case (MDOC_Hang):
844 if (MDOC_HEAD == n->type)
845 p->flags |= TERMP_NOBREAK;
846 else
847 p->flags |= TERMP_NOLPAD;
848
849 if (MDOC_HEAD != n->type)
850 break;
851
852 /*
853 * This is ugly. If `-hang' is specified and the body
854 * is a `Bl' or `Bd', then we want basically to nullify
855 * the "overstep" effect in term_flushln() and treat
856 * this as a `-ohang' list instead.
857 */
858 if (n->next->child &&
859 (MDOC_Bl == n->next->child->tok ||
860 MDOC_Bd == n->next->child->tok)) {
861 p->flags &= ~TERMP_NOBREAK;
862 p->flags &= ~TERMP_NOLPAD;
863 } else
864 p->flags |= TERMP_HANG;
865 break;
866 case (MDOC_Tag):
867 if (MDOC_HEAD == n->type)
868 p->flags |= TERMP_NOBREAK | TERMP_TWOSPACE;
869 else
870 p->flags |= TERMP_NOLPAD;
871
872 if (MDOC_HEAD != n->type)
873 break;
874 if (NULL == n->next || NULL == n->next->child)
875 p->flags |= TERMP_DANGLE;
876 break;
877 case (MDOC_Column):
878 if (MDOC_HEAD == n->type) {
879 assert(n->next);
880 if (MDOC_BODY == n->next->type)
881 p->flags &= ~TERMP_NOBREAK;
882 else
883 p->flags |= TERMP_NOBREAK;
884 if (n->prev)
885 p->flags |= TERMP_NOLPAD;
886 }
887 break;
888 case (MDOC_Diag):
889 if (MDOC_HEAD == n->type)
890 p->flags |= TERMP_NOBREAK;
891 break;
892 default:
893 break;
894 }
895
896 /*
897 * Margin control. Set-head-width lists have their right
898 * margins shortened. The body for these lists has the offset
899 * necessarily lengthened. Everybody gets the offset.
900 */
901
902 p->offset += offset;
903
904 switch (type) {
905 case (MDOC_Hang):
906 /*
907 * Same stipulation as above, regarding `-hang'. We
908 * don't want to recalculate rmargin and offsets when
909 * using `Bd' or `Bl' within `-hang' overstep lists.
910 */
911 if (MDOC_HEAD == n->type && n->next->child &&
912 (MDOC_Bl == n->next->child->tok ||
913 MDOC_Bd == n->next->child->tok))
914 break;
915 /* FALLTHROUGH */
916 case (MDOC_Bullet):
917 /* FALLTHROUGH */
918 case (MDOC_Dash):
919 /* FALLTHROUGH */
920 case (MDOC_Enum):
921 /* FALLTHROUGH */
922 case (MDOC_Hyphen):
923 /* FALLTHROUGH */
924 case (MDOC_Tag):
925 assert(width);
926 if (MDOC_HEAD == n->type)
927 p->rmargin = p->offset + width;
928 else
929 p->offset += width;
930 break;
931 case (MDOC_Column):
932 assert(width);
933 p->rmargin = p->offset + width;
934 /*
935 * XXX - this behaviour is not documented: the
936 * right-most column is filled to the right margin.
937 */
938 if (MDOC_HEAD == n->type &&
939 MDOC_BODY == n->next->type &&
940 p->rmargin < p->maxrmargin)
941 p->rmargin = p->maxrmargin;
942 break;
943 default:
944 break;
945 }
946
947 /*
948 * The dash, hyphen, bullet and enum lists all have a special
949 * HEAD character (temporarily bold, in some cases).
950 */
951
952 if (MDOC_HEAD == n->type)
953 switch (type) {
954 case (MDOC_Bullet):
955 term_fontpush(p, TERMFONT_BOLD);
956 term_word(p, "\\[bu]");
957 term_fontpop(p);
958 break;
959 case (MDOC_Dash):
960 /* FALLTHROUGH */
961 case (MDOC_Hyphen):
962 term_fontpush(p, TERMFONT_BOLD);
963 term_word(p, "\\(hy");
964 term_fontpop(p);
965 break;
966 case (MDOC_Enum):
967 (pair->ppair->ppair->count)++;
968 snprintf(buf, sizeof(buf), "%d.",
969 pair->ppair->ppair->count);
970 term_word(p, buf);
971 break;
972 default:
973 break;
974 }
975
976 /*
977 * If we're not going to process our children, indicate so here.
978 */
979
980 switch (type) {
981 case (MDOC_Bullet):
982 /* FALLTHROUGH */
983 case (MDOC_Item):
984 /* FALLTHROUGH */
985 case (MDOC_Dash):
986 /* FALLTHROUGH */
987 case (MDOC_Hyphen):
988 /* FALLTHROUGH */
989 case (MDOC_Enum):
990 if (MDOC_HEAD == n->type)
991 return(0);
992 break;
993 case (MDOC_Column):
994 if (MDOC_BODY == n->type)
995 return(0);
996 break;
997 default:
998 break;
999 }
1000
1001 return(1);
1002 }
1003
1004
1005 /* ARGSUSED */
1006 static void
1007 termp_it_post(DECL_ARGS)
1008 {
1009 int type;
1010
1011 if (MDOC_BLOCK == n->type)
1012 return;
1013
1014 type = arg_listtype(n->parent->parent->parent);
1015 assert(-1 != type);
1016
1017 switch (type) {
1018 case (MDOC_Item):
1019 /* FALLTHROUGH */
1020 case (MDOC_Diag):
1021 /* FALLTHROUGH */
1022 case (MDOC_Inset):
1023 if (MDOC_BODY == n->type)
1024 term_flushln(p);
1025 break;
1026 case (MDOC_Column):
1027 if (MDOC_HEAD == n->type)
1028 term_flushln(p);
1029 break;
1030 default:
1031 term_flushln(p);
1032 break;
1033 }
1034
1035 /*
1036 * Now that our output is flushed, we can reset our tags. Since
1037 * only `It' sets these flags, we're free to assume that nobody
1038 * has munged them in the meanwhile.
1039 */
1040
1041 p->flags &= ~TERMP_DANGLE;
1042 p->flags &= ~TERMP_NOBREAK;
1043 p->flags &= ~TERMP_TWOSPACE;
1044 p->flags &= ~TERMP_NOLPAD;
1045 p->flags &= ~TERMP_HANG;
1046 }
1047
1048
1049 /* ARGSUSED */
1050 static int
1051 termp_nm_pre(DECL_ARGS)
1052 {
1053
1054 if (SEC_SYNOPSIS == n->sec)
1055 term_newln(p);
1056
1057 term_fontpush(p, TERMFONT_BOLD);
1058
1059 if (NULL == n->child)
1060 term_word(p, m->name);
1061 return(1);
1062 }
1063
1064
1065 /* ARGSUSED */
1066 static int
1067 termp_fl_pre(DECL_ARGS)
1068 {
1069
1070 term_fontpush(p, TERMFONT_BOLD);
1071 term_word(p, "\\-");
1072
1073 if (n->child)
1074 p->flags |= TERMP_NOSPACE;
1075 else if (n->next && n->next->line == n->line)
1076 p->flags |= TERMP_NOSPACE;
1077
1078 return(1);
1079 }
1080
1081
1082 /* ARGSUSED */
1083 static int
1084 termp_an_pre(DECL_ARGS)
1085 {
1086
1087 if (NULL == n->child)
1088 return(1);
1089
1090 /*
1091 * If not in the AUTHORS section, `An -split' will cause
1092 * newlines to occur before the author name. If in the AUTHORS
1093 * section, by default, the first `An' invocation is nosplit,
1094 * then all subsequent ones, regardless of whether interspersed
1095 * with other macros/text, are split. -split, in this case,
1096 * will override the condition of the implied first -nosplit.
1097 */
1098
1099 if (n->sec == SEC_AUTHORS) {
1100 if ( ! (TERMP_ANPREC & p->flags)) {
1101 if (TERMP_SPLIT & p->flags)
1102 term_newln(p);
1103 return(1);
1104 }
1105 if (TERMP_NOSPLIT & p->flags)
1106 return(1);
1107 term_newln(p);
1108 return(1);
1109 }
1110
1111 if (TERMP_SPLIT & p->flags)
1112 term_newln(p);
1113
1114 return(1);
1115 }
1116
1117
1118 /* ARGSUSED */
1119 static void
1120 termp_an_post(DECL_ARGS)
1121 {
1122
1123 if (n->child) {
1124 if (SEC_AUTHORS == n->sec)
1125 p->flags |= TERMP_ANPREC;
1126 return;
1127 }
1128
1129 if (arg_getattr(MDOC_Split, n) > -1) {
1130 p->flags &= ~TERMP_NOSPLIT;
1131 p->flags |= TERMP_SPLIT;
1132 } else {
1133 p->flags &= ~TERMP_SPLIT;
1134 p->flags |= TERMP_NOSPLIT;
1135 }
1136
1137 }
1138
1139
1140 /* ARGSUSED */
1141 static int
1142 termp_ns_pre(DECL_ARGS)
1143 {
1144
1145 p->flags |= TERMP_NOSPACE;
1146 return(1);
1147 }
1148
1149
1150 /* ARGSUSED */
1151 static int
1152 termp_rs_pre(DECL_ARGS)
1153 {
1154
1155 if (SEC_SEE_ALSO != n->sec)
1156 return(1);
1157 if (MDOC_BLOCK == n->type && n->prev)
1158 term_vspace(p);
1159 return(1);
1160 }
1161
1162
1163 /* ARGSUSED */
1164 static int
1165 termp_rv_pre(DECL_ARGS)
1166 {
1167 const struct mdoc_node *nn;
1168
1169 term_newln(p);
1170 term_word(p, "The");
1171
1172 for (nn = n->child; nn; nn = nn->next) {
1173 term_fontpush(p, TERMFONT_BOLD);
1174 term_word(p, nn->string);
1175 term_fontpop(p);
1176 p->flags |= TERMP_NOSPACE;
1177 if (nn->next && NULL == nn->next->next)
1178 term_word(p, "(), and");
1179 else if (nn->next)
1180 term_word(p, "(),");
1181 else
1182 term_word(p, "()");
1183 }
1184
1185 if (n->child->next)
1186 term_word(p, "functions return");
1187 else
1188 term_word(p, "function returns");
1189
1190 term_word(p, "the value 0 if successful; otherwise the value "
1191 "-1 is returned and the global variable");
1192
1193 term_fontpush(p, TERMFONT_UNDER);
1194 term_word(p, "errno");
1195 term_fontpop(p);
1196
1197 term_word(p, "is set to indicate the error.");
1198
1199 return(0);
1200 }
1201
1202
1203 /* ARGSUSED */
1204 static int
1205 termp_ex_pre(DECL_ARGS)
1206 {
1207 const struct mdoc_node *nn;
1208
1209 term_word(p, "The");
1210
1211 for (nn = n->child; nn; nn = nn->next) {
1212 term_fontpush(p, TERMFONT_BOLD);
1213 term_word(p, nn->string);
1214 term_fontpop(p);
1215 p->flags |= TERMP_NOSPACE;
1216 if (nn->next && NULL == nn->next->next)
1217 term_word(p, ", and");
1218 else if (nn->next)
1219 term_word(p, ",");
1220 else
1221 p->flags &= ~TERMP_NOSPACE;
1222 }
1223
1224 if (n->child->next)
1225 term_word(p, "utilities exit");
1226 else
1227 term_word(p, "utility exits");
1228
1229 term_word(p, "0 on success, and >0 if an error occurs.");
1230
1231 return(0);
1232 }
1233
1234
1235 /* ARGSUSED */
1236 static int
1237 termp_nd_pre(DECL_ARGS)
1238 {
1239
1240 if (MDOC_BODY != n->type)
1241 return(1);
1242
1243 #if defined(__OpenBSD__) || defined(__linux__)
1244 term_word(p, "\\(en");
1245 #else
1246 term_word(p, "\\(em");
1247 #endif
1248 return(1);
1249 }
1250
1251
1252 /* ARGSUSED */
1253 static int
1254 termp_bl_pre(DECL_ARGS)
1255 {
1256
1257 return(MDOC_HEAD != n->type);
1258 }
1259
1260
1261 /* ARGSUSED */
1262 static void
1263 termp_bl_post(DECL_ARGS)
1264 {
1265
1266 if (MDOC_BLOCK == n->type)
1267 term_newln(p);
1268 }
1269
1270
1271 /* ARGSUSED */
1272 static void
1273 termp_op_post(DECL_ARGS)
1274 {
1275
1276 if (MDOC_BODY != n->type)
1277 return;
1278 p->flags |= TERMP_NOSPACE;
1279 term_word(p, "\\(rB");
1280 }
1281
1282
1283 /* ARGSUSED */
1284 static int
1285 termp_xr_pre(DECL_ARGS)
1286 {
1287 const struct mdoc_node *nn;
1288
1289 if (NULL == n->child)
1290 return(0);
1291
1292 assert(MDOC_TEXT == n->child->type);
1293 nn = n->child;
1294
1295 term_word(p, nn->string);
1296 if (NULL == (nn = nn->next))
1297 return(0);
1298 p->flags |= TERMP_NOSPACE;
1299 term_word(p, "(");
1300 p->flags |= TERMP_NOSPACE;
1301 term_word(p, nn->string);
1302 p->flags |= TERMP_NOSPACE;
1303 term_word(p, ")");
1304
1305 return(0);
1306 }
1307
1308
1309 static int
1310 termp_vt_pre(DECL_ARGS)
1311 {
1312
1313 if (MDOC_ELEM == n->type)
1314 return(termp_under_pre(p, pair, m, n));
1315 else if (MDOC_HEAD == n->type)
1316 return(0);
1317 else if (MDOC_BLOCK == n->type)
1318 return(1);
1319
1320 return(termp_under_pre(p, pair, m, n));
1321 }
1322
1323
1324 /* ARGSUSED */
1325 static void
1326 termp_vt_post(DECL_ARGS)
1327 {
1328
1329 if (MDOC_BLOCK != n->type)
1330 return;
1331 if (n->next && MDOC_Vt == n->next->tok)
1332 term_newln(p);
1333 else if (n->next)
1334 term_vspace(p);
1335 }
1336
1337
1338 /* ARGSUSED */
1339 static int
1340 termp_bold_pre(DECL_ARGS)
1341 {
1342
1343 term_fontpush(p, TERMFONT_BOLD);
1344 return(1);
1345 }
1346
1347
1348 /* ARGSUSED */
1349 static void
1350 termp_fd_post(DECL_ARGS)
1351 {
1352
1353 if (n->sec != SEC_SYNOPSIS)
1354 return;
1355
1356 term_newln(p);
1357 if (n->next && MDOC_Fd != n->next->tok)
1358 term_vspace(p);
1359 }
1360
1361
1362 /* ARGSUSED */
1363 static int
1364 termp_sh_pre(DECL_ARGS)
1365 {
1366
1367 /* No vspace between consecutive `Sh' calls. */
1368
1369 switch (n->type) {
1370 case (MDOC_BLOCK):
1371 if (n->prev && MDOC_Sh == n->prev->tok)
1372 if (NULL == n->prev->body->child)
1373 break;
1374 term_vspace(p);
1375 break;
1376 case (MDOC_HEAD):
1377 term_fontpush(p, TERMFONT_BOLD);
1378 break;
1379 case (MDOC_BODY):
1380 p->offset = INDENT;
1381 break;
1382 default:
1383 break;
1384 }
1385 return(1);
1386 }
1387
1388
1389 /* ARGSUSED */
1390 static void
1391 termp_sh_post(DECL_ARGS)
1392 {
1393
1394 switch (n->type) {
1395 case (MDOC_HEAD):
1396 term_newln(p);
1397 break;
1398 case (MDOC_BODY):
1399 term_newln(p);
1400 p->offset = 0;
1401 break;
1402 default:
1403 break;
1404 }
1405 }
1406
1407
1408 /* ARGSUSED */
1409 static int
1410 termp_op_pre(DECL_ARGS)
1411 {
1412
1413 switch (n->type) {
1414 case (MDOC_BODY):
1415 term_word(p, "\\(lB");
1416 p->flags |= TERMP_NOSPACE;
1417 break;
1418 default:
1419 break;
1420 }
1421 return(1);
1422 }
1423
1424
1425 /* ARGSUSED */
1426 static int
1427 termp_bt_pre(DECL_ARGS)
1428 {
1429
1430 term_word(p, "is currently in beta test.");
1431 return(0);
1432 }
1433
1434
1435 /* ARGSUSED */
1436 static void
1437 termp_lb_post(DECL_ARGS)
1438 {
1439
1440 if (SEC_LIBRARY == n->sec)
1441 term_newln(p);
1442 }
1443
1444
1445 /* ARGSUSED */
1446 static int
1447 termp_ud_pre(DECL_ARGS)
1448 {
1449
1450 term_word(p, "currently under development.");
1451 return(0);
1452 }
1453
1454
1455 /* ARGSUSED */
1456 static int
1457 termp_d1_pre(DECL_ARGS)
1458 {
1459
1460 if (MDOC_BLOCK != n->type)
1461 return(1);
1462 term_newln(p);
1463 p->offset += (INDENT + 1);
1464 return(1);
1465 }
1466
1467
1468 /* ARGSUSED */
1469 static void
1470 termp_d1_post(DECL_ARGS)
1471 {
1472
1473 if (MDOC_BLOCK != n->type)
1474 return;
1475 term_newln(p);
1476 }
1477
1478
1479 /* ARGSUSED */
1480 static int
1481 termp_aq_pre(DECL_ARGS)
1482 {
1483
1484 if (MDOC_BODY != n->type)
1485 return(1);
1486 term_word(p, "\\(la");
1487 p->flags |= TERMP_NOSPACE;
1488 return(1);
1489 }
1490
1491
1492 /* ARGSUSED */
1493 static void
1494 termp_aq_post(DECL_ARGS)
1495 {
1496
1497 if (MDOC_BODY != n->type)
1498 return;
1499 p->flags |= TERMP_NOSPACE;
1500 term_word(p, "\\(ra");
1501 }
1502
1503
1504 /* ARGSUSED */
1505 static int
1506 termp_ft_pre(DECL_ARGS)
1507 {
1508
1509 if (SEC_SYNOPSIS == n->sec)
1510 if (n->prev && MDOC_Fo == n->prev->tok)
1511 term_vspace(p);
1512
1513 term_fontpush(p, TERMFONT_UNDER);
1514 return(1);
1515 }
1516
1517
1518 /* ARGSUSED */
1519 static void
1520 termp_ft_post(DECL_ARGS)
1521 {
1522
1523 if (SEC_SYNOPSIS == n->sec)
1524 term_newln(p);
1525 }
1526
1527
1528 /* ARGSUSED */
1529 static int
1530 termp_fn_pre(DECL_ARGS)
1531 {
1532 const struct mdoc_node *nn;
1533
1534 term_fontpush(p, TERMFONT_BOLD);
1535 term_word(p, n->child->string);
1536 term_fontpop(p);
1537
1538 p->flags |= TERMP_NOSPACE;
1539 term_word(p, "(");
1540
1541 for (nn = n->child->next; nn; nn = nn->next) {
1542 term_fontpush(p, TERMFONT_UNDER);
1543 term_word(p, nn->string);
1544 term_fontpop(p);
1545
1546 if (nn->next)
1547 term_word(p, ",");
1548 }
1549
1550 term_word(p, ")");
1551
1552 if (SEC_SYNOPSIS == n->sec)
1553 term_word(p, ";");
1554
1555 return(0);
1556 }
1557
1558
1559 /* ARGSUSED */
1560 static void
1561 termp_fn_post(DECL_ARGS)
1562 {
1563
1564 if (n->sec == SEC_SYNOPSIS && n->next)
1565 term_vspace(p);
1566 }
1567
1568
1569 /* ARGSUSED */
1570 static int
1571 termp_fa_pre(DECL_ARGS)
1572 {
1573 const struct mdoc_node *nn;
1574
1575 if (n->parent->tok != MDOC_Fo) {
1576 term_fontpush(p, TERMFONT_UNDER);
1577 return(1);
1578 }
1579
1580 for (nn = n->child; nn; nn = nn->next) {
1581 term_fontpush(p, TERMFONT_UNDER);
1582 term_word(p, nn->string);
1583 term_fontpop(p);
1584
1585 if (nn->next)
1586 term_word(p, ",");
1587 }
1588
1589 if (n->child && n->next && n->next->tok == MDOC_Fa)
1590 term_word(p, ",");
1591
1592 return(0);
1593 }
1594
1595
1596 /* ARGSUSED */
1597 static int
1598 termp_bd_pre(DECL_ARGS)
1599 {
1600 int i, type;
1601 const struct mdoc_node *nn;
1602
1603 if (MDOC_BLOCK == n->type) {
1604 print_bvspace(p, n, n);
1605 return(1);
1606 } else if (MDOC_HEAD == n->type)
1607 return(0);
1608
1609 nn = n->parent;
1610
1611 for (type = -1, i = 0; i < (int)nn->args->argc; i++) {
1612 switch (nn->args->argv[i].arg) {
1613 case (MDOC_Centred):
1614 /* FALLTHROUGH */
1615 case (MDOC_Ragged):
1616 /* FALLTHROUGH */
1617 case (MDOC_Filled):
1618 /* FALLTHROUGH */
1619 case (MDOC_Unfilled):
1620 /* FALLTHROUGH */
1621 case (MDOC_Literal):
1622 type = nn->args->argv[i].arg;
1623 break;
1624 case (MDOC_Offset):
1625 p->offset += a2offs(&nn->args->argv[i]);
1626 break;
1627 default:
1628 break;
1629 }
1630 }
1631
1632 /*
1633 * If -ragged or -filled are specified, the block does nothing
1634 * but change the indentation. If -unfilled or -literal are
1635 * specified, text is printed exactly as entered in the display:
1636 * for macro lines, a newline is appended to the line. Blank
1637 * lines are allowed.
1638 */
1639
1640 assert(type > -1);
1641 if (MDOC_Literal != type && MDOC_Unfilled != type)
1642 return(1);
1643
1644 for (nn = n->child; nn; nn = nn->next) {
1645 p->flags |= TERMP_NOSPACE;
1646 print_mdoc_node(p, pair, m, nn);
1647 if (NULL == nn->next)
1648 continue;
1649 if (nn->prev && nn->prev->line < nn->line)
1650 term_flushln(p);
1651 else if (NULL == nn->prev)
1652 term_flushln(p);
1653 }
1654
1655 return(0);
1656 }
1657
1658
1659 /* ARGSUSED */
1660 static void
1661 termp_bd_post(DECL_ARGS)
1662 {
1663
1664 if (MDOC_BODY != n->type)
1665 return;
1666 p->flags |= TERMP_NOSPACE;
1667 term_flushln(p);
1668 }
1669
1670
1671 /* ARGSUSED */
1672 static int
1673 termp_qq_pre(DECL_ARGS)
1674 {
1675
1676 if (MDOC_BODY != n->type)
1677 return(1);
1678 term_word(p, "\"");
1679 p->flags |= TERMP_NOSPACE;
1680 return(1);
1681 }
1682
1683
1684 /* ARGSUSED */
1685 static void
1686 termp_qq_post(DECL_ARGS)
1687 {
1688
1689 if (MDOC_BODY != n->type)
1690 return;
1691 p->flags |= TERMP_NOSPACE;
1692 term_word(p, "\"");
1693 }
1694
1695
1696 /* ARGSUSED */
1697 static void
1698 termp_bx_post(DECL_ARGS)
1699 {
1700
1701 if (n->child)
1702 p->flags |= TERMP_NOSPACE;
1703 term_word(p, "BSD");
1704 }
1705
1706
1707 /* ARGSUSED */
1708 static int
1709 termp_xx_pre(DECL_ARGS)
1710 {
1711 const char *pp;
1712
1713 pp = NULL;
1714 switch (n->tok) {
1715 case (MDOC_Bsx):
1716 pp = "BSDI BSD/OS";
1717 break;
1718 case (MDOC_Dx):
1719 pp = "DragonFly";
1720 break;
1721 case (MDOC_Fx):
1722 pp = "FreeBSD";
1723 break;
1724 case (MDOC_Nx):
1725 pp = "NetBSD";
1726 break;
1727 case (MDOC_Ox):
1728 pp = "OpenBSD";
1729 break;
1730 case (MDOC_Ux):
1731 pp = "UNIX";
1732 break;
1733 default:
1734 break;
1735 }
1736
1737 assert(pp);
1738 term_word(p, pp);
1739 return(1);
1740 }
1741
1742
1743 /* ARGSUSED */
1744 static int
1745 termp_sq_pre(DECL_ARGS)
1746 {
1747
1748 if (MDOC_BODY != n->type)
1749 return(1);
1750 term_word(p, "\\(oq");
1751 p->flags |= TERMP_NOSPACE;
1752 return(1);
1753 }
1754
1755
1756 /* ARGSUSED */
1757 static void
1758 termp_sq_post(DECL_ARGS)
1759 {
1760
1761 if (MDOC_BODY != n->type)
1762 return;
1763 p->flags |= TERMP_NOSPACE;
1764 term_word(p, "\\(aq");
1765 }
1766
1767
1768 /* ARGSUSED */
1769 static int
1770 termp_pf_pre(DECL_ARGS)
1771 {
1772
1773 p->flags |= TERMP_IGNDELIM;
1774 return(1);
1775 }
1776
1777
1778 /* ARGSUSED */
1779 static void
1780 termp_pf_post(DECL_ARGS)
1781 {
1782
1783 p->flags &= ~TERMP_IGNDELIM;
1784 p->flags |= TERMP_NOSPACE;
1785 }
1786
1787
1788 /* ARGSUSED */
1789 static int
1790 termp_ss_pre(DECL_ARGS)
1791 {
1792
1793 switch (n->type) {
1794 case (MDOC_BLOCK):
1795 term_newln(p);
1796 if (n->prev)
1797 term_vspace(p);
1798 break;
1799 case (MDOC_HEAD):
1800 term_fontpush(p, TERMFONT_BOLD);
1801 p->offset = HALFINDENT;
1802 break;
1803 default:
1804 break;
1805 }
1806
1807 return(1);
1808 }
1809
1810
1811 /* ARGSUSED */
1812 static void
1813 termp_ss_post(DECL_ARGS)
1814 {
1815
1816 if (MDOC_HEAD == n->type)
1817 term_newln(p);
1818 }
1819
1820
1821 /* ARGSUSED */
1822 static int
1823 termp_cd_pre(DECL_ARGS)
1824 {
1825
1826 term_fontpush(p, TERMFONT_BOLD);
1827 term_newln(p);
1828 return(1);
1829 }
1830
1831
1832 /* ARGSUSED */
1833 static int
1834 termp_in_pre(DECL_ARGS)
1835 {
1836
1837 term_fontpush(p, TERMFONT_BOLD);
1838 if (SEC_SYNOPSIS == n->sec)
1839 term_word(p, "#include");
1840
1841 term_word(p, "<");
1842 p->flags |= TERMP_NOSPACE;
1843 return(1);
1844 }
1845
1846
1847 /* ARGSUSED */
1848 static void
1849 termp_in_post(DECL_ARGS)
1850 {
1851
1852 term_fontpush(p, TERMFONT_BOLD);
1853 p->flags |= TERMP_NOSPACE;
1854 term_word(p, ">");
1855 term_fontpop(p);
1856
1857 if (SEC_SYNOPSIS != n->sec)
1858 return;
1859
1860 term_newln(p);
1861 /*
1862 * XXX Not entirely correct. If `.In foo bar' is specified in
1863 * the SYNOPSIS section, then it produces a single break after
1864 * the <foo>; mandoc asserts a vertical space. Since this
1865 * construction is rarely used, I think it's fine.
1866 */
1867 if (n->next && MDOC_In != n->next->tok)
1868 term_vspace(p);
1869 }
1870
1871
1872 /* ARGSUSED */
1873 static int
1874 termp_sp_pre(DECL_ARGS)
1875 {
1876 size_t i, len;
1877
1878 switch (n->tok) {
1879 case (MDOC_sp):
1880 len = n->child ? a2height(n->child) : 1;
1881 break;
1882 case (MDOC_br):
1883 len = 0;
1884 break;
1885 default:
1886 len = 1;
1887 break;
1888 }
1889
1890 if (0 == len)
1891 term_newln(p);
1892 for (i = 0; i < len; i++)
1893 term_vspace(p);
1894
1895 return(0);
1896 }
1897
1898
1899 /* ARGSUSED */
1900 static int
1901 termp_brq_pre(DECL_ARGS)
1902 {
1903
1904 if (MDOC_BODY != n->type)
1905 return(1);
1906 term_word(p, "\\(lC");
1907 p->flags |= TERMP_NOSPACE;
1908 return(1);
1909 }
1910
1911
1912 /* ARGSUSED */
1913 static void
1914 termp_brq_post(DECL_ARGS)
1915 {
1916
1917 if (MDOC_BODY != n->type)
1918 return;
1919 p->flags |= TERMP_NOSPACE;
1920 term_word(p, "\\(rC");
1921 }
1922
1923
1924 /* ARGSUSED */
1925 static int
1926 termp_bq_pre(DECL_ARGS)
1927 {
1928
1929 if (MDOC_BODY != n->type)
1930 return(1);
1931 term_word(p, "\\(lB");
1932 p->flags |= TERMP_NOSPACE;
1933 return(1);
1934 }
1935
1936
1937 /* ARGSUSED */
1938 static void
1939 termp_bq_post(DECL_ARGS)
1940 {
1941
1942 if (MDOC_BODY != n->type)
1943 return;
1944 p->flags |= TERMP_NOSPACE;
1945 term_word(p, "\\(rB");
1946 }
1947
1948
1949 /* ARGSUSED */
1950 static int
1951 termp_pq_pre(DECL_ARGS)
1952 {
1953
1954 if (MDOC_BODY != n->type)
1955 return(1);
1956 term_word(p, "\\&(");
1957 p->flags |= TERMP_NOSPACE;
1958 return(1);
1959 }
1960
1961
1962 /* ARGSUSED */
1963 static void
1964 termp_pq_post(DECL_ARGS)
1965 {
1966
1967 if (MDOC_BODY != n->type)
1968 return;
1969 term_word(p, ")");
1970 }
1971
1972
1973 /* ARGSUSED */
1974 static int
1975 termp_fo_pre(DECL_ARGS)
1976 {
1977 const struct mdoc_node *nn;
1978
1979 if (MDOC_BODY == n->type) {
1980 p->flags |= TERMP_NOSPACE;
1981 term_word(p, "(");
1982 p->flags |= TERMP_NOSPACE;
1983 return(1);
1984 } else if (MDOC_HEAD != n->type)
1985 return(1);
1986
1987 term_fontpush(p, TERMFONT_BOLD);
1988 for (nn = n->child; nn; nn = nn->next) {
1989 assert(MDOC_TEXT == nn->type);
1990 term_word(p, nn->string);
1991 }
1992 term_fontpop(p);
1993
1994 return(0);
1995 }
1996
1997
1998 /* ARGSUSED */
1999 static void
2000 termp_fo_post(DECL_ARGS)
2001 {
2002
2003 if (MDOC_BODY != n->type)
2004 return;
2005 p->flags |= TERMP_NOSPACE;
2006 term_word(p, ")");
2007 p->flags |= TERMP_NOSPACE;
2008 term_word(p, ";");
2009 term_newln(p);
2010 }
2011
2012
2013 /* ARGSUSED */
2014 static int
2015 termp_bf_pre(DECL_ARGS)
2016 {
2017 const struct mdoc_node *nn;
2018
2019 if (MDOC_HEAD == n->type)
2020 return(0);
2021 else if (MDOC_BLOCK != n->type)
2022 return(1);
2023
2024 if (NULL == (nn = n->head->child)) {
2025 if (arg_hasattr(MDOC_Emphasis, n))
2026 term_fontpush(p, TERMFONT_UNDER);
2027 else if (arg_hasattr(MDOC_Symbolic, n))
2028 term_fontpush(p, TERMFONT_BOLD);
2029 else
2030 term_fontpush(p, TERMFONT_NONE);
2031
2032 return(1);
2033 }
2034
2035 assert(MDOC_TEXT == nn->type);
2036 if (0 == strcmp("Em", nn->string))
2037 term_fontpush(p, TERMFONT_UNDER);
2038 else if (0 == strcmp("Sy", nn->string))
2039 term_fontpush(p, TERMFONT_BOLD);
2040 else
2041 term_fontpush(p, TERMFONT_NONE);
2042
2043 return(1);
2044 }
2045
2046
2047 /* ARGSUSED */
2048 static int
2049 termp_sm_pre(DECL_ARGS)
2050 {
2051
2052 assert(n->child && MDOC_TEXT == n->child->type);
2053 if (0 == strcmp("on", n->child->string))
2054 p->flags &= ~TERMP_NONOSPACE;
2055 else
2056 p->flags |= TERMP_NONOSPACE;
2057
2058 return(0);
2059 }
2060
2061
2062 /* ARGSUSED */
2063 static int
2064 termp_ap_pre(DECL_ARGS)
2065 {
2066
2067 p->flags |= TERMP_NOSPACE;
2068 term_word(p, "\\(aq");
2069 p->flags |= TERMP_NOSPACE;
2070 return(1);
2071 }
2072
2073
2074 /* ARGSUSED */
2075 static void
2076 termp____post(DECL_ARGS)
2077 {
2078
2079 /* TODO: %U. */
2080
2081 p->flags |= TERMP_NOSPACE;
2082 term_word(p, n->next ? "," : ".");
2083 }
2084
2085
2086 /* ARGSUSED */
2087 static int
2088 termp_li_pre(DECL_ARGS)
2089 {
2090
2091 term_fontpush(p, TERMFONT_NONE);
2092 return(1);
2093 }
2094
2095
2096 /* ARGSUSED */
2097 static int
2098 termp_lk_pre(DECL_ARGS)
2099 {
2100 const struct mdoc_node *nn;
2101
2102 term_fontpush(p, TERMFONT_UNDER);
2103 nn = n->child;
2104
2105 if (NULL == nn->next)
2106 return(1);
2107
2108 term_word(p, nn->string);
2109 term_fontpop(p);
2110
2111 p->flags |= TERMP_NOSPACE;
2112 term_word(p, ":");
2113
2114 term_fontpush(p, TERMFONT_BOLD);
2115 for (nn = nn->next; nn; nn = nn->next)
2116 term_word(p, nn->string);
2117 term_fontpop(p);
2118
2119 return(0);
2120 }
2121
2122
2123 /* ARGSUSED */
2124 static int
2125 termp_under_pre(DECL_ARGS)
2126 {
2127
2128 term_fontpush(p, TERMFONT_UNDER);
2129 return(1);
2130 }
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