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1 /* $Id: mdoc_validate.c,v 1.139 2010/12/09 10:32:22 kristaps Exp $ */
2 /*
3 * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
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 #ifndef OSNAME
22 #include <sys/utsname.h>
23 #endif
24
25 #include <sys/types.h>
26
27 #include <assert.h>
28 #include <ctype.h>
29 #include <limits.h>
30 #include <stdio.h>
31 #include <stdlib.h>
32 #include <string.h>
33 #include <time.h>
34
35 #include "mandoc.h"
36 #include "libmdoc.h"
37 #include "libmandoc.h"
38
39 /* FIXME: .Bl -diag can't have non-text children in HEAD. */
40
41 #define PRE_ARGS struct mdoc *mdoc, struct mdoc_node *n
42 #define POST_ARGS struct mdoc *mdoc
43
44 #define NUMSIZ 32
45 #define DATESIZE 32
46
47 enum check_ineq {
48 CHECK_LT,
49 CHECK_GT,
50 CHECK_EQ
51 };
52
53 enum check_lvl {
54 CHECK_WARN,
55 CHECK_ERROR,
56 CHECK_FATAL
57 };
58
59 typedef int (*v_pre)(PRE_ARGS);
60 typedef int (*v_post)(POST_ARGS);
61
62 struct valids {
63 v_pre *pre;
64 v_post *post;
65 };
66
67 static int check_count(struct mdoc *, enum mdoc_type,
68 enum check_lvl, enum check_ineq, int);
69 static int check_parent(PRE_ARGS, enum mdoct, enum mdoc_type);
70 static void check_text(struct mdoc *, int, int, char *);
71 static void check_argv(struct mdoc *,
72 struct mdoc_node *, struct mdoc_argv *);
73 static void check_args(struct mdoc *, struct mdoc_node *);
74
75 static int concat(struct mdoc *, char *,
76 const struct mdoc_node *, size_t);
77
78 static int ebool(POST_ARGS);
79 static int berr_ge1(POST_ARGS);
80 static int bwarn_ge1(POST_ARGS);
81 static int eerr_eq0(POST_ARGS);
82 static int eerr_eq1(POST_ARGS);
83 static int eerr_ge1(POST_ARGS);
84 static int eerr_le1(POST_ARGS);
85 static int ewarn_eq0(POST_ARGS);
86 static int ewarn_ge1(POST_ARGS);
87 static int herr_eq0(POST_ARGS);
88 static int herr_ge1(POST_ARGS);
89 static int hwarn_eq0(POST_ARGS);
90 static int hwarn_eq1(POST_ARGS);
91 static int hwarn_le1(POST_ARGS);
92
93 static int post_an(POST_ARGS);
94 static int post_at(POST_ARGS);
95 static int post_bf(POST_ARGS);
96 static int post_bl(POST_ARGS);
97 static int post_bl_block(POST_ARGS);
98 static int post_bl_block_width(POST_ARGS);
99 static int post_bl_block_tag(POST_ARGS);
100 static int post_bl_head(POST_ARGS);
101 static int post_dd(POST_ARGS);
102 static int post_dt(POST_ARGS);
103 static int post_defaults(POST_ARGS);
104 static int post_literal(POST_ARGS);
105 static int post_eoln(POST_ARGS);
106 static int post_it(POST_ARGS);
107 static int post_lb(POST_ARGS);
108 static int post_nm(POST_ARGS);
109 static int post_os(POST_ARGS);
110 static int post_prol(POST_ARGS);
111 static int post_root(POST_ARGS);
112 static int post_rs(POST_ARGS);
113 static int post_sh(POST_ARGS);
114 static int post_sh_body(POST_ARGS);
115 static int post_sh_head(POST_ARGS);
116 static int post_st(POST_ARGS);
117 static int post_std(POST_ARGS);
118 static int post_vt(POST_ARGS);
119 static int pre_an(PRE_ARGS);
120 static int pre_bd(PRE_ARGS);
121 static int pre_bl(PRE_ARGS);
122 static int pre_dd(PRE_ARGS);
123 static int pre_display(PRE_ARGS);
124 static int pre_dt(PRE_ARGS);
125 static int pre_it(PRE_ARGS);
126 static int pre_literal(PRE_ARGS);
127 static int pre_os(PRE_ARGS);
128 static int pre_par(PRE_ARGS);
129 static int pre_sh(PRE_ARGS);
130 static int pre_ss(PRE_ARGS);
131 static int pre_std(PRE_ARGS);
132
133 static v_post posts_an[] = { post_an, NULL };
134 static v_post posts_at[] = { post_at, post_defaults, NULL };
135 static v_post posts_bd[] = { post_literal, hwarn_eq0, bwarn_ge1, NULL };
136 static v_post posts_bf[] = { hwarn_le1, post_bf, NULL };
137 static v_post posts_bk[] = { hwarn_eq0, bwarn_ge1, NULL };
138 static v_post posts_bl[] = { bwarn_ge1, post_bl, NULL };
139 static v_post posts_bool[] = { eerr_eq1, ebool, NULL };
140 static v_post posts_eoln[] = { post_eoln, NULL };
141 static v_post posts_defaults[] = { post_defaults, NULL };
142 static v_post posts_dd[] = { ewarn_ge1, post_dd, post_prol, NULL };
143 static v_post posts_dl[] = { post_literal, bwarn_ge1, herr_eq0, NULL };
144 static v_post posts_dt[] = { post_dt, post_prol, NULL };
145 static v_post posts_fo[] = { hwarn_eq1, bwarn_ge1, NULL };
146 static v_post posts_it[] = { post_it, NULL };
147 static v_post posts_lb[] = { eerr_eq1, post_lb, NULL };
148 static v_post posts_nd[] = { berr_ge1, NULL };
149 static v_post posts_nm[] = { post_nm, NULL };
150 static v_post posts_notext[] = { ewarn_eq0, NULL };
151 static v_post posts_os[] = { post_os, post_prol, NULL };
152 static v_post posts_rs[] = { berr_ge1, herr_eq0, post_rs, NULL };
153 static v_post posts_sh[] = { herr_ge1, bwarn_ge1, post_sh, NULL };
154 static v_post posts_sp[] = { eerr_le1, NULL };
155 static v_post posts_ss[] = { herr_ge1, NULL };
156 static v_post posts_st[] = { eerr_eq1, post_st, NULL };
157 static v_post posts_std[] = { post_std, NULL };
158 static v_post posts_text[] = { eerr_ge1, NULL };
159 static v_post posts_text1[] = { eerr_eq1, NULL };
160 static v_post posts_vt[] = { post_vt, NULL };
161 static v_post posts_wline[] = { bwarn_ge1, herr_eq0, NULL };
162 static v_post posts_wtext[] = { ewarn_ge1, NULL };
163 static v_pre pres_an[] = { pre_an, NULL };
164 static v_pre pres_bd[] = { pre_display, pre_bd, pre_literal, pre_par, NULL };
165 static v_pre pres_bl[] = { pre_bl, pre_par, NULL };
166 static v_pre pres_d1[] = { pre_display, NULL };
167 static v_pre pres_dl[] = { pre_literal, pre_display, NULL };
168 static v_pre pres_dd[] = { pre_dd, NULL };
169 static v_pre pres_dt[] = { pre_dt, NULL };
170 static v_pre pres_er[] = { NULL, NULL };
171 static v_pre pres_fd[] = { NULL, NULL };
172 static v_pre pres_it[] = { pre_it, NULL };
173 static v_pre pres_os[] = { pre_os, NULL };
174 static v_pre pres_pp[] = { pre_par, NULL };
175 static v_pre pres_sh[] = { pre_sh, NULL };
176 static v_pre pres_ss[] = { pre_ss, NULL };
177 static v_pre pres_std[] = { pre_std, NULL };
178
179 const struct valids mdoc_valids[MDOC_MAX] = {
180 { NULL, NULL }, /* Ap */
181 { pres_dd, posts_dd }, /* Dd */
182 { pres_dt, posts_dt }, /* Dt */
183 { pres_os, posts_os }, /* Os */
184 { pres_sh, posts_sh }, /* Sh */
185 { pres_ss, posts_ss }, /* Ss */
186 { pres_pp, posts_notext }, /* Pp */
187 { pres_d1, posts_wline }, /* D1 */
188 { pres_dl, posts_dl }, /* Dl */
189 { pres_bd, posts_bd }, /* Bd */
190 { NULL, NULL }, /* Ed */
191 { pres_bl, posts_bl }, /* Bl */
192 { NULL, NULL }, /* El */
193 { pres_it, posts_it }, /* It */
194 { NULL, posts_text }, /* Ad */
195 { pres_an, posts_an }, /* An */
196 { NULL, posts_defaults }, /* Ar */
197 { NULL, posts_text }, /* Cd */
198 { NULL, NULL }, /* Cm */
199 { NULL, NULL }, /* Dv */
200 { pres_er, posts_text }, /* Er */
201 { NULL, NULL }, /* Ev */
202 { pres_std, posts_std }, /* Ex */
203 { NULL, NULL }, /* Fa */
204 { pres_fd, posts_wtext }, /* Fd */
205 { NULL, NULL }, /* Fl */
206 { NULL, posts_text }, /* Fn */
207 { NULL, posts_wtext }, /* Ft */
208 { NULL, posts_text }, /* Ic */
209 { NULL, posts_text1 }, /* In */
210 { NULL, posts_defaults }, /* Li */
211 { NULL, posts_nd }, /* Nd */
212 { NULL, posts_nm }, /* Nm */
213 { NULL, NULL }, /* Op */
214 { NULL, NULL }, /* Ot */
215 { NULL, posts_defaults }, /* Pa */
216 { pres_std, posts_std }, /* Rv */
217 { NULL, posts_st }, /* St */
218 { NULL, NULL }, /* Va */
219 { NULL, posts_vt }, /* Vt */
220 { NULL, posts_wtext }, /* Xr */
221 { NULL, posts_text }, /* %A */
222 { NULL, posts_text }, /* %B */ /* FIXME: can be used outside Rs/Re. */
223 { NULL, posts_text }, /* %D */ /* FIXME: check date with mandoc_a2time(). */
224 { NULL, posts_text }, /* %I */
225 { NULL, posts_text }, /* %J */
226 { NULL, posts_text }, /* %N */
227 { NULL, posts_text }, /* %O */
228 { NULL, posts_text }, /* %P */
229 { NULL, posts_text }, /* %R */
230 { NULL, posts_text }, /* %T */ /* FIXME: can be used outside Rs/Re. */
231 { NULL, posts_text }, /* %V */
232 { NULL, NULL }, /* Ac */
233 { NULL, NULL }, /* Ao */
234 { NULL, NULL }, /* Aq */
235 { NULL, posts_at }, /* At */
236 { NULL, NULL }, /* Bc */
237 { NULL, posts_bf }, /* Bf */
238 { NULL, NULL }, /* Bo */
239 { NULL, NULL }, /* Bq */
240 { NULL, NULL }, /* Bsx */
241 { NULL, NULL }, /* Bx */
242 { NULL, posts_bool }, /* Db */
243 { NULL, NULL }, /* Dc */
244 { NULL, NULL }, /* Do */
245 { NULL, NULL }, /* Dq */
246 { NULL, NULL }, /* Ec */
247 { NULL, NULL }, /* Ef */
248 { NULL, NULL }, /* Em */
249 { NULL, NULL }, /* Eo */
250 { NULL, NULL }, /* Fx */
251 { NULL, posts_text }, /* Ms */
252 { NULL, posts_notext }, /* No */
253 { NULL, posts_notext }, /* Ns */
254 { NULL, NULL }, /* Nx */
255 { NULL, NULL }, /* Ox */
256 { NULL, NULL }, /* Pc */
257 { NULL, posts_text1 }, /* Pf */
258 { NULL, NULL }, /* Po */
259 { NULL, NULL }, /* Pq */
260 { NULL, NULL }, /* Qc */
261 { NULL, NULL }, /* Ql */
262 { NULL, NULL }, /* Qo */
263 { NULL, NULL }, /* Qq */
264 { NULL, NULL }, /* Re */
265 { NULL, posts_rs }, /* Rs */
266 { NULL, NULL }, /* Sc */
267 { NULL, NULL }, /* So */
268 { NULL, NULL }, /* Sq */
269 { NULL, posts_bool }, /* Sm */
270 { NULL, posts_text }, /* Sx */
271 { NULL, posts_text }, /* Sy */
272 { NULL, posts_text }, /* Tn */
273 { NULL, NULL }, /* Ux */
274 { NULL, NULL }, /* Xc */
275 { NULL, NULL }, /* Xo */
276 { NULL, posts_fo }, /* Fo */
277 { NULL, NULL }, /* Fc */
278 { NULL, NULL }, /* Oo */
279 { NULL, NULL }, /* Oc */
280 { NULL, posts_bk }, /* Bk */
281 { NULL, NULL }, /* Ek */
282 { NULL, posts_eoln }, /* Bt */
283 { NULL, NULL }, /* Hf */
284 { NULL, NULL }, /* Fr */
285 { NULL, posts_eoln }, /* Ud */
286 { NULL, posts_lb }, /* Lb */
287 { NULL, posts_notext }, /* Lp */
288 { NULL, posts_text }, /* Lk */
289 { NULL, posts_defaults }, /* Mt */
290 { NULL, NULL }, /* Brq */
291 { NULL, NULL }, /* Bro */
292 { NULL, NULL }, /* Brc */
293 { NULL, posts_text }, /* %C */
294 { NULL, NULL }, /* Es */
295 { NULL, NULL }, /* En */
296 { NULL, NULL }, /* Dx */
297 { NULL, posts_text }, /* %Q */
298 { NULL, posts_notext }, /* br */
299 { pres_pp, posts_sp }, /* sp */
300 { NULL, posts_text1 }, /* %U */
301 { NULL, NULL }, /* Ta */
302 };
303
304 #define RSORD_MAX 14 /* Number of `Rs' blocks. */
305
306 static const enum mdoct rsord[RSORD_MAX] = {
307 MDOC__A,
308 MDOC__T,
309 MDOC__B,
310 MDOC__I,
311 MDOC__J,
312 MDOC__R,
313 MDOC__N,
314 MDOC__V,
315 MDOC__P,
316 MDOC__Q,
317 MDOC__D,
318 MDOC__O,
319 MDOC__C,
320 MDOC__U
321 };
322
323
324 int
325 mdoc_valid_pre(struct mdoc *mdoc, struct mdoc_node *n)
326 {
327 v_pre *p;
328 int line, pos;
329 char *tp;
330
331 if (MDOC_TEXT == n->type) {
332 tp = n->string;
333 line = n->line;
334 pos = n->pos;
335 check_text(mdoc, line, pos, tp);
336 return(1);
337 }
338
339 check_args(mdoc, n);
340
341 if (NULL == mdoc_valids[n->tok].pre)
342 return(1);
343 for (p = mdoc_valids[n->tok].pre; *p; p++)
344 if ( ! (*p)(mdoc, n))
345 return(0);
346 return(1);
347 }
348
349
350 int
351 mdoc_valid_post(struct mdoc *mdoc)
352 {
353 v_post *p;
354
355 if (MDOC_VALID & mdoc->last->flags)
356 return(1);
357 mdoc->last->flags |= MDOC_VALID;
358
359 if (MDOC_TEXT == mdoc->last->type)
360 return(1);
361 if (MDOC_ROOT == mdoc->last->type)
362 return(post_root(mdoc));
363
364 if (NULL == mdoc_valids[mdoc->last->tok].post)
365 return(1);
366 for (p = mdoc_valids[mdoc->last->tok].post; *p; p++)
367 if ( ! (*p)(mdoc))
368 return(0);
369
370 return(1);
371 }
372
373 static int
374 check_count(struct mdoc *m, enum mdoc_type type,
375 enum check_lvl lvl, enum check_ineq ineq, int val)
376 {
377 const char *p;
378
379 if (m->last->type != type)
380 return(1);
381
382 switch (ineq) {
383 case (CHECK_LT):
384 p = "less than ";
385 if (m->last->nchild < val)
386 return(1);
387 break;
388 case (CHECK_GT):
389 p = "greater than ";
390 if (m->last->nchild > val)
391 return(1);
392 break;
393 case (CHECK_EQ):
394 p = "";
395 if (val == m->last->nchild)
396 return(1);
397 break;
398 default:
399 abort();
400 /* NOTREACHED */
401 }
402
403 if (CHECK_WARN == lvl) {
404 return(mdoc_vmsg(m, MANDOCERR_ARGCOUNT,
405 m->last->line, m->last->pos,
406 "want %s%d children (have %d)",
407 p, val, m->last->nchild));
408 }
409
410 /* FIXME: THIS IS THE SAME AS THE ABOVE. */
411
412 return(mdoc_vmsg(m, MANDOCERR_ARGCOUNT,
413 m->last->line, m->last->pos,
414 "require %s%d children (have %d)",
415 p, val, m->last->nchild));
416 }
417
418 static int
419 berr_ge1(POST_ARGS)
420 {
421
422 return(check_count(mdoc, MDOC_BODY, CHECK_FATAL, CHECK_GT, 0));
423 }
424
425 static int
426 bwarn_ge1(POST_ARGS)
427 {
428 return(check_count(mdoc, MDOC_BODY, CHECK_WARN, CHECK_GT, 0));
429 }
430
431 static int
432 eerr_eq0(POST_ARGS)
433 {
434 return(check_count(mdoc, MDOC_ELEM, CHECK_FATAL, CHECK_EQ, 0));
435 }
436
437 static int
438 eerr_eq1(POST_ARGS)
439 {
440 return(check_count(mdoc, MDOC_ELEM, CHECK_FATAL, CHECK_EQ, 1));
441 }
442
443 static int
444 eerr_ge1(POST_ARGS)
445 {
446 return(check_count(mdoc, MDOC_ELEM, CHECK_FATAL, CHECK_GT, 0));
447 }
448
449 static int
450 eerr_le1(POST_ARGS)
451 {
452 return(check_count(mdoc, MDOC_ELEM, CHECK_FATAL, CHECK_LT, 2));
453 }
454
455 static int
456 ewarn_eq0(POST_ARGS)
457 {
458 return(check_count(mdoc, MDOC_ELEM, CHECK_WARN, CHECK_EQ, 0));
459 }
460
461 static int
462 ewarn_ge1(POST_ARGS)
463 {
464 return(check_count(mdoc, MDOC_ELEM, CHECK_WARN, CHECK_GT, 0));
465 }
466
467 static int
468 herr_eq0(POST_ARGS)
469 {
470 return(check_count(mdoc, MDOC_HEAD, CHECK_FATAL, CHECK_EQ, 0));
471 }
472
473 static int
474 herr_ge1(POST_ARGS)
475 {
476 return(check_count(mdoc, MDOC_HEAD, CHECK_FATAL, CHECK_GT, 0));
477 }
478
479 static int
480 hwarn_eq0(POST_ARGS)
481 {
482 return(check_count(mdoc, MDOC_HEAD, CHECK_WARN, CHECK_EQ, 0));
483 }
484
485 static int
486 hwarn_eq1(POST_ARGS)
487 {
488 return(check_count(mdoc, MDOC_HEAD, CHECK_WARN, CHECK_EQ, 1));
489 }
490
491 static int
492 hwarn_le1(POST_ARGS)
493 {
494 return(check_count(mdoc, MDOC_HEAD, CHECK_WARN, CHECK_LT, 2));
495 }
496
497 static void
498 check_args(struct mdoc *m, struct mdoc_node *n)
499 {
500 int i;
501
502 if (NULL == n->args)
503 return;
504
505 assert(n->args->argc);
506 for (i = 0; i < (int)n->args->argc; i++)
507 check_argv(m, n, &n->args->argv[i]);
508 }
509
510 static void
511 check_argv(struct mdoc *m, struct mdoc_node *n, struct mdoc_argv *v)
512 {
513 int i;
514
515 for (i = 0; i < (int)v->sz; i++)
516 check_text(m, v->line, v->pos, v->value[i]);
517
518 /* FIXME: move to post_std(). */
519
520 if (MDOC_Std == v->arg)
521 if ( ! (v->sz || m->meta.name))
522 mdoc_nmsg(m, n, MANDOCERR_NONAME);
523 }
524
525 static void
526 check_text(struct mdoc *m, int ln, int pos, char *p)
527 {
528 int c;
529 size_t sz;
530
531 for ( ; *p; p++, pos++) {
532 sz = strcspn(p, "\t\\");
533 p += (int)sz;
534
535 if ('\0' == *p)
536 break;
537
538 pos += (int)sz;
539
540 if ('\t' == *p) {
541 if ( ! (MDOC_LITERAL & m->flags))
542 mdoc_pmsg(m, ln, pos, MANDOCERR_BADTAB);
543 continue;
544 }
545
546 if (0 == (c = mandoc_special(p))) {
547 mdoc_pmsg(m, ln, pos, MANDOCERR_BADESCAPE);
548 continue;
549 }
550
551 p += c - 1;
552 pos += c - 1;
553 }
554 }
555
556 static int
557 check_parent(PRE_ARGS, enum mdoct tok, enum mdoc_type t)
558 {
559
560 assert(n->parent);
561 if ((MDOC_ROOT == t || tok == n->parent->tok) &&
562 (t == n->parent->type))
563 return(1);
564
565 mdoc_vmsg(mdoc, MANDOCERR_SYNTCHILD,
566 n->line, n->pos, "want parent %s",
567 MDOC_ROOT == t ? "<root>" :
568 mdoc_macronames[tok]);
569 return(0);
570 }
571
572
573 static int
574 pre_display(PRE_ARGS)
575 {
576 struct mdoc_node *node;
577
578 if (MDOC_BLOCK != n->type)
579 return(1);
580
581 for (node = mdoc->last->parent; node; node = node->parent)
582 if (MDOC_BLOCK == node->type)
583 if (MDOC_Bd == node->tok)
584 break;
585
586 if (node)
587 mdoc_nmsg(mdoc, n, MANDOCERR_NESTEDDISP);
588
589 return(1);
590 }
591
592
593 static int
594 pre_bl(PRE_ARGS)
595 {
596 int i, comp, dup;
597 const char *offs, *width;
598 enum mdoc_list lt;
599 struct mdoc_node *np;
600
601 if (MDOC_BLOCK != n->type) {
602 if (ENDBODY_NOT != n->end) {
603 assert(n->pending);
604 np = n->pending->parent;
605 } else
606 np = n->parent;
607
608 assert(np);
609 assert(MDOC_BLOCK == np->type);
610 assert(MDOC_Bl == np->tok);
611 assert(np->data.Bl);
612 n->data.Bl = np->data.Bl;
613 return(1);
614 }
615
616 /*
617 * First figure out which kind of list to use: bind ourselves to
618 * the first mentioned list type and warn about any remaining
619 * ones. If we find no list type, we default to LIST_item.
620 */
621
622 assert(NULL == n->data.Bl);
623 n->data.Bl = mandoc_calloc(1, sizeof(struct mdoc_bl));
624
625 /* LINTED */
626 for (i = 0; n->args && i < (int)n->args->argc; i++) {
627 lt = LIST__NONE;
628 dup = comp = 0;
629 width = offs = NULL;
630 switch (n->args->argv[i].arg) {
631 /* Set list types. */
632 case (MDOC_Bullet):
633 lt = LIST_bullet;
634 break;
635 case (MDOC_Dash):
636 lt = LIST_dash;
637 break;
638 case (MDOC_Enum):
639 lt = LIST_enum;
640 break;
641 case (MDOC_Hyphen):
642 lt = LIST_hyphen;
643 break;
644 case (MDOC_Item):
645 lt = LIST_item;
646 break;
647 case (MDOC_Tag):
648 lt = LIST_tag;
649 break;
650 case (MDOC_Diag):
651 lt = LIST_diag;
652 break;
653 case (MDOC_Hang):
654 lt = LIST_hang;
655 break;
656 case (MDOC_Ohang):
657 lt = LIST_ohang;
658 break;
659 case (MDOC_Inset):
660 lt = LIST_inset;
661 break;
662 case (MDOC_Column):
663 lt = LIST_column;
664 break;
665 /* Set list arguments. */
666 case (MDOC_Compact):
667 dup = n->data.Bl->comp;
668 comp = 1;
669 break;
670 case (MDOC_Width):
671 dup = (NULL != n->data.Bl->width);
672 width = n->args->argv[i].value[0];
673 break;
674 case (MDOC_Offset):
675 /* NB: this can be empty! */
676 if (n->args->argv[i].sz) {
677 offs = n->args->argv[i].value[0];
678 dup = (NULL != n->data.Bl->offs);
679 break;
680 }
681 mdoc_nmsg(mdoc, n, MANDOCERR_IGNARGV);
682 break;
683 default:
684 continue;
685 }
686
687 /* Check: duplicate auxiliary arguments. */
688
689 if (dup)
690 mdoc_nmsg(mdoc, n, MANDOCERR_ARGVREP);
691
692 if (comp && ! dup)
693 n->data.Bl->comp = comp;
694 if (offs && ! dup)
695 n->data.Bl->offs = offs;
696 if (width && ! dup)
697 n->data.Bl->width = width;
698
699 /* Check: multiple list types. */
700
701 if (LIST__NONE != lt && n->data.Bl->type != LIST__NONE)
702 mdoc_nmsg(mdoc, n, MANDOCERR_LISTREP);
703
704 /* Assign list type. */
705
706 if (LIST__NONE != lt && n->data.Bl->type == LIST__NONE) {
707 n->data.Bl->type = lt;
708 /* Set column information, too. */
709 if (LIST_column == lt) {
710 n->data.Bl->ncols =
711 n->args->argv[i].sz;
712 n->data.Bl->cols = (const char **)
713 n->args->argv[i].value;
714 }
715 }
716
717 /* The list type should come first. */
718
719 if (n->data.Bl->type == LIST__NONE)
720 if (n->data.Bl->width ||
721 n->data.Bl->offs ||
722 n->data.Bl->comp)
723 mdoc_nmsg(mdoc, n, MANDOCERR_LISTFIRST);
724
725 continue;
726 }
727
728 /* Allow lists to default to LIST_item. */
729
730 if (LIST__NONE == n->data.Bl->type) {
731 mdoc_nmsg(mdoc, n, MANDOCERR_LISTTYPE);
732 n->data.Bl->type = LIST_item;
733 }
734
735 /*
736 * Validate the width field. Some list types don't need width
737 * types and should be warned about them. Others should have it
738 * and must also be warned.
739 */
740
741 switch (n->data.Bl->type) {
742 case (LIST_tag):
743 if (n->data.Bl->width)
744 break;
745 mdoc_nmsg(mdoc, n, MANDOCERR_NOWIDTHARG);
746 break;
747 case (LIST_column):
748 /* FALLTHROUGH */
749 case (LIST_diag):
750 /* FALLTHROUGH */
751 case (LIST_ohang):
752 /* FALLTHROUGH */
753 case (LIST_inset):
754 /* FALLTHROUGH */
755 case (LIST_item):
756 if (n->data.Bl->width)
757 mdoc_nmsg(mdoc, n, MANDOCERR_IGNARGV);
758 break;
759 default:
760 break;
761 }
762
763 return(1);
764 }
765
766
767 static int
768 pre_bd(PRE_ARGS)
769 {
770 int i, dup, comp;
771 enum mdoc_disp dt;
772 const char *offs;
773 struct mdoc_node *np;
774
775 if (MDOC_BLOCK != n->type) {
776 if (ENDBODY_NOT != n->end) {
777 assert(n->pending);
778 np = n->pending->parent;
779 } else
780 np = n->parent;
781
782 assert(np);
783 assert(MDOC_BLOCK == np->type);
784 assert(MDOC_Bd == np->tok);
785 assert(np->data.Bd);
786 n->data.Bd = np->data.Bd;
787 return(1);
788 }
789
790 assert(NULL == n->data.Bd);
791 n->data.Bd = mandoc_calloc(1, sizeof(struct mdoc_bd));
792
793 /* LINTED */
794 for (i = 0; n->args && i < (int)n->args->argc; i++) {
795 dt = DISP__NONE;
796 dup = comp = 0;
797 offs = NULL;
798
799 switch (n->args->argv[i].arg) {
800 case (MDOC_Centred):
801 dt = DISP_centred;
802 break;
803 case (MDOC_Ragged):
804 dt = DISP_ragged;
805 break;
806 case (MDOC_Unfilled):
807 dt = DISP_unfilled;
808 break;
809 case (MDOC_Filled):
810 dt = DISP_filled;
811 break;
812 case (MDOC_Literal):
813 dt = DISP_literal;
814 break;
815 case (MDOC_File):
816 mdoc_nmsg(mdoc, n, MANDOCERR_BADDISP);
817 return(0);
818 case (MDOC_Offset):
819 /* NB: this can be empty! */
820 if (n->args->argv[i].sz) {
821 offs = n->args->argv[i].value[0];
822 dup = (NULL != n->data.Bd->offs);
823 break;
824 }
825 mdoc_nmsg(mdoc, n, MANDOCERR_IGNARGV);
826 break;
827 case (MDOC_Compact):
828 comp = 1;
829 dup = n->data.Bd->comp;
830 break;
831 default:
832 abort();
833 /* NOTREACHED */
834 }
835
836 /* Check whether we have duplicates. */
837
838 if (dup)
839 mdoc_nmsg(mdoc, n, MANDOCERR_ARGVREP);
840
841 /* Make our auxiliary assignments. */
842
843 if (offs && ! dup)
844 n->data.Bd->offs = offs;
845 if (comp && ! dup)
846 n->data.Bd->comp = comp;
847
848 /* Check whether a type has already been assigned. */
849
850 if (DISP__NONE != dt && n->data.Bd->type != DISP__NONE)
851 mdoc_nmsg(mdoc, n, MANDOCERR_DISPREP);
852
853 /* Make our type assignment. */
854
855 if (DISP__NONE != dt && n->data.Bd->type == DISP__NONE)
856 n->data.Bd->type = dt;
857 }
858
859 if (DISP__NONE == n->data.Bd->type) {
860 mdoc_nmsg(mdoc, n, MANDOCERR_DISPTYPE);
861 n->data.Bd->type = DISP_ragged;
862 }
863
864 return(1);
865 }
866
867
868 static int
869 pre_ss(PRE_ARGS)
870 {
871
872 if (MDOC_BLOCK != n->type)
873 return(1);
874 return(check_parent(mdoc, n, MDOC_Sh, MDOC_BODY));
875 }
876
877
878 static int
879 pre_sh(PRE_ARGS)
880 {
881
882 if (MDOC_BLOCK != n->type)
883 return(1);
884
885 mdoc->regs->regs[(int)REG_nS].set = 0;
886 return(check_parent(mdoc, n, MDOC_MAX, MDOC_ROOT));
887 }
888
889
890 static int
891 pre_it(PRE_ARGS)
892 {
893
894 if (MDOC_BLOCK != n->type)
895 return(1);
896
897 /*
898 * FIXME: this can probably be lifted if we make the It into
899 * something else on-the-fly?
900 */
901 return(check_parent(mdoc, n, MDOC_Bl, MDOC_BODY));
902 }
903
904
905 static int
906 pre_an(PRE_ARGS)
907 {
908 int i;
909
910 if (NULL == n->args)
911 return(1);
912
913 for (i = 1; i < (int)n->args->argc; i++)
914 mdoc_pmsg(mdoc, n->args->argv[i].line,
915 n->args->argv[i].pos, MANDOCERR_IGNARGV);
916
917 if (MDOC_Split == n->args->argv[0].arg)
918 n->data.An.auth = AUTH_split;
919 else if (MDOC_Nosplit == n->args->argv[0].arg)
920 n->data.An.auth = AUTH_nosplit;
921 else
922 abort();
923
924 return(1);
925 }
926
927 static int
928 pre_std(PRE_ARGS)
929 {
930
931 if (n->args && 1 == n->args->argc)
932 if (MDOC_Std == n->args->argv[0].arg)
933 return(1);
934
935 mdoc_nmsg(mdoc, n, MANDOCERR_NOARGV);
936 return(1);
937 }
938
939 static int
940 pre_dt(PRE_ARGS)
941 {
942
943 if (0 == mdoc->meta.date || mdoc->meta.os)
944 mdoc_nmsg(mdoc, n, MANDOCERR_PROLOGOOO);
945
946 if (mdoc->meta.title)
947 mdoc_nmsg(mdoc, n, MANDOCERR_PROLOGREP);
948
949 return(1);
950 }
951
952 static int
953 pre_os(PRE_ARGS)
954 {
955
956 if (NULL == mdoc->meta.title || 0 == mdoc->meta.date)
957 mdoc_nmsg(mdoc, n, MANDOCERR_PROLOGOOO);
958
959 if (mdoc->meta.os)
960 mdoc_nmsg(mdoc, n, MANDOCERR_PROLOGREP);
961
962 return(1);
963 }
964
965 static int
966 pre_dd(PRE_ARGS)
967 {
968
969 if (mdoc->meta.title || mdoc->meta.os)
970 mdoc_nmsg(mdoc, n, MANDOCERR_PROLOGOOO);
971
972 if (mdoc->meta.date)
973 mdoc_nmsg(mdoc, n, MANDOCERR_PROLOGREP);
974
975 return(1);
976 }
977
978
979 static int
980 post_bf(POST_ARGS)
981 {
982 struct mdoc_node *np;
983 enum mdocargt arg;
984
985 /*
986 * Unlike other data pointers, these are "housed" by the HEAD
987 * element, which contains the goods.
988 */
989
990 if (MDOC_HEAD != mdoc->last->type) {
991 if (ENDBODY_NOT != mdoc->last->end) {
992 assert(mdoc->last->pending);
993 np = mdoc->last->pending->parent->head;
994 } else if (MDOC_BLOCK != mdoc->last->type) {
995 np = mdoc->last->parent->head;
996 } else
997 np = mdoc->last->head;
998
999 assert(np);
1000 assert(MDOC_HEAD == np->type);
1001 assert(MDOC_Bf == np->tok);
1002 assert(np->data.Bf);
1003 mdoc->last->data.Bf = np->data.Bf;
1004 return(1);
1005 }
1006
1007 np = mdoc->last;
1008 assert(MDOC_BLOCK == np->parent->type);
1009 assert(MDOC_Bf == np->parent->tok);
1010 np->data.Bf = mandoc_calloc(1, sizeof(struct mdoc_bf));
1011
1012 /*
1013 * Cannot have both argument and parameter.
1014 * If neither is specified, let it through with a warning.
1015 */
1016
1017 if (np->parent->args && np->child) {
1018 mdoc_nmsg(mdoc, np, MANDOCERR_SYNTARGVCOUNT);
1019 return(0);
1020 } else if (NULL == np->parent->args && NULL == np->child) {
1021 mdoc_nmsg(mdoc, np, MANDOCERR_FONTTYPE);
1022 return(1);
1023 }
1024
1025 /* Extract argument into data. */
1026
1027 if (np->parent->args) {
1028 arg = np->parent->args->argv[0].arg;
1029 if (MDOC_Emphasis == arg)
1030 np->data.Bf->font = FONT_Em;
1031 else if (MDOC_Literal == arg)
1032 np->data.Bf->font = FONT_Li;
1033 else if (MDOC_Symbolic == arg)
1034 np->data.Bf->font = FONT_Sy;
1035 else
1036 abort();
1037 return(1);
1038 }
1039
1040 /* Extract parameter into data. */
1041
1042 if (0 == strcmp(np->child->string, "Em"))
1043 np->data.Bf->font = FONT_Em;
1044 else if (0 == strcmp(np->child->string, "Li"))
1045 np->data.Bf->font = FONT_Li;
1046 else if (0 == strcmp(np->child->string, "Sy"))
1047 np->data.Bf->font = FONT_Sy;
1048 else
1049 mdoc_nmsg(mdoc, np, MANDOCERR_FONTTYPE);
1050
1051 return(1);
1052 }
1053
1054 static int
1055 post_lb(POST_ARGS)
1056 {
1057 const char *p;
1058 char *buf;
1059 size_t sz;
1060
1061 assert(mdoc->last->child);
1062 assert(MDOC_TEXT == mdoc->last->child->type);
1063
1064 p = mdoc_a2lib(mdoc->last->child->string);
1065
1066 /* If lookup ok, replace with table value. */
1067
1068 if (p) {
1069 free(mdoc->last->child->string);
1070 mdoc->last->child->string = mandoc_strdup(p);
1071 return(1);
1072 }
1073
1074 /* If not, use "library ``xxxx''. */
1075
1076 sz = strlen(mdoc->last->child->string) +
1077 2 + strlen("\\(lqlibrary\\(rq");
1078 buf = mandoc_malloc(sz);
1079 snprintf(buf, sz, "library \\(lq%s\\(rq",
1080 mdoc->last->child->string);
1081 free(mdoc->last->child->string);
1082 mdoc->last->child->string = buf;
1083 return(1);
1084 }
1085
1086 static int
1087 post_eoln(POST_ARGS)
1088 {
1089
1090 if (mdoc->last->child)
1091 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_ARGSLOST);
1092 return(1);
1093 }
1094
1095
1096 static int
1097 post_vt(POST_ARGS)
1098 {
1099 const struct mdoc_node *n;
1100
1101 /*
1102 * The Vt macro comes in both ELEM and BLOCK form, both of which
1103 * have different syntaxes (yet more context-sensitive
1104 * behaviour). ELEM types must have a child; BLOCK types,
1105 * specifically the BODY, should only have TEXT children.
1106 */
1107
1108 if (MDOC_ELEM == mdoc->last->type)
1109 return(eerr_ge1(mdoc));
1110 if (MDOC_BODY != mdoc->last->type)
1111 return(1);
1112
1113 for (n = mdoc->last->child; n; n = n->next)
1114 if (MDOC_TEXT != n->type)
1115 mdoc_nmsg(mdoc, n, MANDOCERR_CHILD);
1116
1117 return(1);
1118 }
1119
1120
1121 static int
1122 post_nm(POST_ARGS)
1123 {
1124 char buf[BUFSIZ];
1125
1126 /* If no child specified, make sure we have the meta name. */
1127
1128 if (NULL == mdoc->last->child && NULL == mdoc->meta.name) {
1129 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_NONAME);
1130 return(1);
1131 } else if (mdoc->meta.name)
1132 return(1);
1133
1134 /* If no meta name, set it from the child. */
1135
1136 if ( ! concat(mdoc, buf, mdoc->last->child, BUFSIZ))
1137 return(0);
1138
1139 mdoc->meta.name = mandoc_strdup(buf);
1140
1141 return(1);
1142 }
1143
1144 static int
1145 post_literal(POST_ARGS)
1146 {
1147
1148 /*
1149 * The `Dl' (note "el" not "one") and `Bd' macros unset the
1150 * MDOC_LITERAL flag as they leave. Note that `Bd' only sets
1151 * this in literal mode, but it doesn't hurt to just switch it
1152 * off in general since displays can't be nested.
1153 */
1154
1155 if (MDOC_BODY == mdoc->last->type)
1156 mdoc->flags &= ~MDOC_LITERAL;
1157
1158 return(1);
1159 }
1160
1161 static int
1162 post_defaults(POST_ARGS)
1163 {
1164 struct mdoc_node *nn;
1165
1166 /*
1167 * The `Ar' defaults to "file ..." if no value is provided as an
1168 * argument; the `Mt' and `Pa' macros use "~"; the `Li' just
1169 * gets an empty string.
1170 */
1171
1172 if (mdoc->last->child)
1173 return(1);
1174
1175 nn = mdoc->last;
1176 mdoc->next = MDOC_NEXT_CHILD;
1177
1178 switch (nn->tok) {
1179 case (MDOC_Ar):
1180 if ( ! mdoc_word_alloc(mdoc, nn->line, nn->pos, "file"))
1181 return(0);
1182 if ( ! mdoc_word_alloc(mdoc, nn->line, nn->pos, "..."))
1183 return(0);
1184 break;
1185 case (MDOC_At):
1186 if ( ! mdoc_word_alloc(mdoc, nn->line, nn->pos, "AT&T"))
1187 return(0);
1188 if ( ! mdoc_word_alloc(mdoc, nn->line, nn->pos, "UNIX"))
1189 return(0);
1190 break;
1191 case (MDOC_Li):
1192 if ( ! mdoc_word_alloc(mdoc, nn->line, nn->pos, ""))
1193 return(0);
1194 break;
1195 case (MDOC_Pa):
1196 /* FALLTHROUGH */
1197 case (MDOC_Mt):
1198 if ( ! mdoc_word_alloc(mdoc, nn->line, nn->pos, "~"))
1199 return(0);
1200 break;
1201 default:
1202 abort();
1203 /* NOTREACHED */
1204 }
1205
1206 mdoc->last = nn;
1207 return(1);
1208 }
1209
1210 static int
1211 post_at(POST_ARGS)
1212 {
1213 const char *p, *q;
1214 char *buf;
1215 size_t sz;
1216
1217 /*
1218 * If we have a child, look it up in the standard keys. If a
1219 * key exist, use that instead of the child; if it doesn't,
1220 * prefix "AT&T UNIX " to the existing data.
1221 */
1222
1223 if (NULL == mdoc->last->child)
1224 return(1);
1225
1226 assert(MDOC_TEXT == mdoc->last->child->type);
1227 p = mdoc_a2att(mdoc->last->child->string);
1228
1229 if (p) {
1230 free(mdoc->last->child->string);
1231 mdoc->last->child->string = mandoc_strdup(p);
1232 } else {
1233 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_BADATT);
1234 p = "AT&T UNIX ";
1235 q = mdoc->last->child->string;
1236 sz = strlen(p) + strlen(q) + 1;
1237 buf = mandoc_malloc(sz);
1238 strlcpy(buf, p, sz);
1239 strlcat(buf, q, sz);
1240 free(mdoc->last->child->string);
1241 mdoc->last->child->string = buf;
1242 }
1243
1244 return(1);
1245 }
1246
1247 static int
1248 post_an(POST_ARGS)
1249 {
1250 struct mdoc_node *np;
1251
1252 np = mdoc->last;
1253 if (AUTH__NONE != np->data.An.auth && np->child)
1254 return(eerr_eq0(mdoc));
1255
1256 /*
1257 * FIXME: make this ewarn and make sure that the front-ends
1258 * don't print the arguments.
1259 */
1260 if (AUTH__NONE != np->data.An.auth || np->child)
1261 return(1);
1262
1263 mdoc_nmsg(mdoc, np, MANDOCERR_NOARGS);
1264 return(1);
1265 }
1266
1267
1268 static int
1269 post_it(POST_ARGS)
1270 {
1271 int i, cols, rc;
1272 enum mdoc_list lt;
1273 struct mdoc_node *n, *c;
1274 enum mandocerr er;
1275
1276 if (MDOC_BLOCK != mdoc->last->type)
1277 return(1);
1278
1279 n = mdoc->last->parent->parent;
1280 assert(n->data.Bl);
1281 lt = n->data.Bl->type;
1282
1283 if (LIST__NONE == lt) {
1284 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_LISTTYPE);
1285 return(1);
1286 }
1287
1288 switch (lt) {
1289 case (LIST_tag):
1290 if (mdoc->last->head->child)
1291 break;
1292 /* FIXME: give this a dummy value. */
1293 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_NOARGS);
1294 break;
1295 case (LIST_hang):
1296 /* FALLTHROUGH */
1297 case (LIST_ohang):
1298 /* FALLTHROUGH */
1299 case (LIST_inset):
1300 /* FALLTHROUGH */
1301 case (LIST_diag):
1302 if (NULL == mdoc->last->head->child)
1303 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_NOARGS);
1304 break;
1305 case (LIST_bullet):
1306 /* FALLTHROUGH */
1307 case (LIST_dash):
1308 /* FALLTHROUGH */
1309 case (LIST_enum):
1310 /* FALLTHROUGH */
1311 case (LIST_hyphen):
1312 if (NULL == mdoc->last->body->child)
1313 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_NOBODY);
1314 /* FALLTHROUGH */
1315 case (LIST_item):
1316 if (mdoc->last->head->child)
1317 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_ARGSLOST);
1318 break;
1319 case (LIST_column):
1320 cols = (int)n->data.Bl->ncols;
1321
1322 assert(NULL == mdoc->last->head->child);
1323
1324 if (NULL == mdoc->last->body->child)
1325 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_NOBODY);
1326
1327 for (i = 0, c = mdoc->last->child; c; c = c->next)
1328 if (MDOC_BODY == c->type)
1329 i++;
1330
1331 if (i < cols)
1332 er = MANDOCERR_ARGCOUNT;
1333 else if (i == cols || i == cols + 1)
1334 break;
1335 else
1336 er = MANDOCERR_SYNTARGCOUNT;
1337
1338 rc = mdoc_vmsg(mdoc, er,
1339 mdoc->last->line, mdoc->last->pos,
1340 "columns == %d (have %d)", cols, i);
1341 return(rc);
1342 default:
1343 break;
1344 }
1345
1346 return(1);
1347 }
1348
1349 static int
1350 post_bl_block(POST_ARGS)
1351 {
1352 struct mdoc_node *n;
1353
1354 /*
1355 * These are fairly complicated, so we've broken them into two
1356 * functions. post_bl_block_tag() is called when a -tag is
1357 * specified, but no -width (it must be guessed). The second
1358 * when a -width is specified (macro indicators must be
1359 * rewritten into real lengths).
1360 */
1361
1362 n = mdoc->last;
1363
1364 if (LIST_tag == n->data.Bl->type &&
1365 NULL == n->data.Bl->width) {
1366 if ( ! post_bl_block_tag(mdoc))
1367 return(0);
1368 } else if (NULL != n->data.Bl->width) {
1369 if ( ! post_bl_block_width(mdoc))
1370 return(0);
1371 } else
1372 return(1);
1373
1374 assert(n->data.Bl->width);
1375 return(1);
1376 }
1377
1378 static int
1379 post_bl_block_width(POST_ARGS)
1380 {
1381 size_t width;
1382 int i;
1383 enum mdoct tok;
1384 struct mdoc_node *n;
1385 char buf[NUMSIZ];
1386
1387 n = mdoc->last;
1388
1389 /*
1390 * Calculate the real width of a list from the -width string,
1391 * which may contain a macro (with a known default width), a
1392 * literal string, or a scaling width.
1393 *
1394 * If the value to -width is a macro, then we re-write it to be
1395 * the macro's width as set in share/tmac/mdoc/doc-common.
1396 */
1397
1398 if (0 == strcmp(n->data.Bl->width, "Ds"))
1399 width = 6;
1400 else if (MDOC_MAX == (tok = mdoc_hash_find(n->data.Bl->width)))
1401 return(1);
1402 else if (0 == (width = mdoc_macro2len(tok))) {
1403 mdoc_nmsg(mdoc, n, MANDOCERR_BADWIDTH);
1404 return(1);
1405 }
1406
1407 /* The value already exists: free and reallocate it. */
1408
1409 assert(n->args);
1410
1411 for (i = 0; i < (int)n->args->argc; i++)
1412 if (MDOC_Width == n->args->argv[i].arg)
1413 break;
1414
1415 assert(i < (int)n->args->argc);
1416
1417 snprintf(buf, NUMSIZ, "%zun", width);
1418 free(n->args->argv[i].value[0]);
1419 n->args->argv[i].value[0] = mandoc_strdup(buf);
1420
1421 /* Set our width! */
1422 n->data.Bl->width = n->args->argv[i].value[0];
1423 return(1);
1424 }
1425
1426 static int
1427 post_bl_block_tag(POST_ARGS)
1428 {
1429 struct mdoc_node *n, *nn;
1430 size_t sz, ssz;
1431 int i;
1432 char buf[NUMSIZ];
1433
1434 /*
1435 * Calculate the -width for a `Bl -tag' list if it hasn't been
1436 * provided. Uses the first head macro. NOTE AGAIN: this is
1437 * ONLY if the -width argument has NOT been provided. See
1438 * post_bl_block_width() for converting the -width string.
1439 */
1440
1441 sz = 10;
1442 n = mdoc->last;
1443
1444 for (nn = n->body->child; nn; nn = nn->next) {
1445 if (MDOC_It != nn->tok)
1446 continue;
1447
1448 assert(MDOC_BLOCK == nn->type);
1449 nn = nn->head->child;
1450
1451 if (nn == NULL)
1452 break;
1453
1454 if (MDOC_TEXT == nn->type) {
1455 sz = strlen(nn->string) + 1;
1456 break;
1457 }
1458
1459 if (0 != (ssz = mdoc_macro2len(nn->tok)))
1460 sz = ssz;
1461
1462 break;
1463 }
1464
1465 /* Defaults to ten ens. */
1466
1467 snprintf(buf, NUMSIZ, "%zun", sz);
1468
1469 /*
1470 * We have to dynamically add this to the macro's argument list.
1471 * We're guaranteed that a MDOC_Width doesn't already exist.
1472 */
1473
1474 assert(n->args);
1475 i = (int)(n->args->argc)++;
1476
1477 n->args->argv = mandoc_realloc(n->args->argv,
1478 n->args->argc * sizeof(struct mdoc_argv));
1479
1480 n->args->argv[i].arg = MDOC_Width;
1481 n->args->argv[i].line = n->line;
1482 n->args->argv[i].pos = n->pos;
1483 n->args->argv[i].sz = 1;
1484 n->args->argv[i].value = mandoc_malloc(sizeof(char *));
1485 n->args->argv[i].value[0] = mandoc_strdup(buf);
1486
1487 /* Set our width! */
1488 n->data.Bl->width = n->args->argv[i].value[0];
1489 return(1);
1490 }
1491
1492
1493 static int
1494 post_bl_head(POST_ARGS)
1495 {
1496 struct mdoc_node *np, *nn, *nnp;
1497 int i, j;
1498
1499 if (LIST_column != mdoc->last->data.Bl->type)
1500 /* FIXME: this should be ERROR class... */
1501 return(hwarn_eq0(mdoc));
1502
1503 /*
1504 * Convert old-style lists, where the column width specifiers
1505 * trail as macro parameters, to the new-style ("normal-form")
1506 * lists where they're argument values following -column.
1507 */
1508
1509 /* First, disallow both types and allow normal-form. */
1510
1511 /*
1512 * TODO: technically, we can accept both and just merge the two
1513 * lists, but I'll leave that for another day.
1514 */
1515
1516 if (mdoc->last->data.Bl->ncols && mdoc->last->nchild) {
1517 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_COLUMNS);
1518 return(0);
1519 } else if (NULL == mdoc->last->child)
1520 return(1);
1521
1522 np = mdoc->last->parent;
1523 assert(np->args);
1524
1525 for (j = 0; j < (int)np->args->argc; j++)
1526 if (MDOC_Column == np->args->argv[j].arg)
1527 break;
1528
1529 assert(j < (int)np->args->argc);
1530 assert(0 == np->args->argv[j].sz);
1531
1532 /*
1533 * Accomodate for new-style groff column syntax. Shuffle the
1534 * child nodes, all of which must be TEXT, as arguments for the
1535 * column field. Then, delete the head children.
1536 */
1537
1538 np->args->argv[j].sz = (size_t)mdoc->last->nchild;
1539 np->args->argv[j].value = mandoc_malloc
1540 ((size_t)mdoc->last->nchild * sizeof(char *));
1541
1542 mdoc->last->data.Bl->ncols = np->args->argv[j].sz;
1543 mdoc->last->data.Bl->cols = (const char **)np->args->argv[j].value;
1544
1545 for (i = 0, nn = mdoc->last->child; nn; i++) {
1546 np->args->argv[j].value[i] = nn->string;
1547 nn->string = NULL;
1548 nnp = nn;
1549 nn = nn->next;
1550 mdoc_node_delete(NULL, nnp);
1551 }
1552
1553 mdoc->last->nchild = 0;
1554 mdoc->last->child = NULL;
1555
1556 return(1);
1557 }
1558
1559 static int
1560 post_bl(POST_ARGS)
1561 {
1562 struct mdoc_node *n;
1563
1564 if (MDOC_HEAD == mdoc->last->type)
1565 return(post_bl_head(mdoc));
1566 if (MDOC_BLOCK == mdoc->last->type)
1567 return(post_bl_block(mdoc));
1568 if (MDOC_BODY != mdoc->last->type)
1569 return(1);
1570 if (NULL == mdoc->last->child)
1571 return(1);
1572
1573 /*
1574 * We only allow certain children of `Bl'. This is usually on
1575 * `It', but apparently `Sm' occurs here and there, so we let
1576 * that one through, too.
1577 */
1578
1579 /* LINTED */
1580 for (n = mdoc->last->child; n; n = n->next) {
1581 if (MDOC_BLOCK == n->type && MDOC_It == n->tok)
1582 continue;
1583 if (MDOC_Sm == n->tok)
1584 continue;
1585 mdoc_nmsg(mdoc, n, MANDOCERR_SYNTCHILD);
1586 return(0);
1587 }
1588
1589 return(1);
1590 }
1591
1592 static int
1593 ebool(struct mdoc *mdoc)
1594 {
1595
1596 if (NULL == mdoc->last->child)
1597 return(1);
1598
1599 assert(MDOC_TEXT == mdoc->last->child->type);
1600
1601 if (0 == strcmp(mdoc->last->child->string, "on"))
1602 return(1);
1603 if (0 == strcmp(mdoc->last->child->string, "off"))
1604 return(1);
1605
1606 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_BADBOOL);
1607 return(1);
1608 }
1609
1610 static int
1611 post_root(POST_ARGS)
1612 {
1613 int erc;
1614 struct mdoc_node *n;
1615
1616 erc = 0;
1617
1618 /* Check that we have a finished prologue. */
1619
1620 if ( ! (MDOC_PBODY & mdoc->flags)) {
1621 erc++;
1622 mdoc_nmsg(mdoc, mdoc->first, MANDOCERR_NODOCPROLOG);
1623 }
1624
1625 n = mdoc->first;
1626 assert(n);
1627
1628 /* Check that we begin with a proper `Sh'. */
1629
1630 if (NULL == n->child) {
1631 erc++;
1632 mdoc_nmsg(mdoc, n, MANDOCERR_NODOCBODY);
1633 } else if (MDOC_BLOCK != n->child->type ||
1634 MDOC_Sh != n->child->tok) {
1635 erc++;
1636 /* Can this be lifted? See rxdebug.1 for example. */
1637 mdoc_nmsg(mdoc, n, MANDOCERR_NODOCBODY);
1638 }
1639
1640 return(erc ? 0 : 1);
1641 }
1642
1643 static int
1644 post_st(POST_ARGS)
1645 {
1646 const char *p;
1647
1648 assert(MDOC_TEXT == mdoc->last->child->type);
1649
1650 p = mdoc_a2st(mdoc->last->child->string);
1651
1652 if (p == NULL) {
1653 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_BADSTANDARD);
1654 mdoc_node_delete(mdoc, mdoc->last);
1655 } else {
1656 free(mdoc->last->child->string);
1657 mdoc->last->child->string = mandoc_strdup(p);
1658 }
1659
1660 return(1);
1661 }
1662
1663 static int
1664 post_rs(POST_ARGS)
1665 {
1666 struct mdoc_node *nn, *next, *prev;
1667 int i, j;
1668
1669 if (MDOC_BODY != mdoc->last->type)
1670 return(1);
1671
1672 /*
1673 * Make sure only certain types of nodes are allowed within the
1674 * the `Rs' body. Delete offending nodes and raise a warning.
1675 * Do this before re-ordering for the sake of clarity.
1676 */
1677
1678 next = NULL;
1679 for (nn = mdoc->last->child; nn; nn = next) {
1680 for (i = 0; i < RSORD_MAX; i++)
1681 if (nn->tok == rsord[i])
1682 break;
1683
1684 if (i < RSORD_MAX) {
1685 next = nn->next;
1686 continue;
1687 }
1688
1689 next = nn->next;
1690 mdoc_nmsg(mdoc, nn, MANDOCERR_CHILD);
1691 mdoc_node_delete(mdoc, nn);
1692 }
1693
1694 /*
1695 * The full `Rs' block needs special handling to order the
1696 * sub-elements according to `rsord'. Pick through each element
1697 * and correctly order it. This is a insertion sort.
1698 */
1699
1700 next = NULL;
1701 for (nn = mdoc->last->child->next; nn; nn = next) {
1702 /* Determine order of `nn'. */
1703 for (i = 0; i < RSORD_MAX; i++)
1704 if (rsord[i] == nn->tok)
1705 break;
1706
1707 /*
1708 * Remove `nn' from the chain. This somewhat
1709 * repeats mdoc_node_unlink(), but since we're
1710 * just re-ordering, there's no need for the
1711 * full unlink process.
1712 */
1713
1714 if (NULL != (next = nn->next))
1715 next->prev = nn->prev;
1716
1717 if (NULL != (prev = nn->prev))
1718 prev->next = nn->next;
1719
1720 nn->prev = nn->next = NULL;
1721
1722 /*
1723 * Scan back until we reach a node that's
1724 * ordered before `nn'.
1725 */
1726
1727 for ( ; prev ; prev = prev->prev) {
1728 /* Determine order of `prev'. */
1729 for (j = 0; j < RSORD_MAX; j++)
1730 if (rsord[j] == prev->tok)
1731 break;
1732
1733 if (j <= i)
1734 break;
1735 }
1736
1737 /*
1738 * Set `nn' back into its correct place in front
1739 * of the `prev' node.
1740 */
1741
1742 nn->prev = prev;
1743
1744 if (prev) {
1745 if (prev->next)
1746 prev->next->prev = nn;
1747 nn->next = prev->next;
1748 prev->next = nn;
1749 } else {
1750 mdoc->last->child->prev = nn;
1751 nn->next = mdoc->last->child;
1752 mdoc->last->child = nn;
1753 }
1754 }
1755
1756 return(1);
1757 }
1758
1759 static int
1760 post_sh(POST_ARGS)
1761 {
1762
1763 if (MDOC_HEAD == mdoc->last->type)
1764 return(post_sh_head(mdoc));
1765 if (MDOC_BODY == mdoc->last->type)
1766 return(post_sh_body(mdoc));
1767
1768 return(1);
1769 }
1770
1771 static int
1772 post_sh_body(POST_ARGS)
1773 {
1774 struct mdoc_node *n;
1775
1776 if (SEC_NAME != mdoc->lastsec)
1777 return(1);
1778
1779 /*
1780 * Warn if the NAME section doesn't contain the `Nm' and `Nd'
1781 * macros (can have multiple `Nm' and one `Nd'). Note that the
1782 * children of the BODY declaration can also be "text".
1783 */
1784
1785 if (NULL == (n = mdoc->last->child)) {
1786 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_BADNAMESEC);
1787 return(1);
1788 }
1789
1790 for ( ; n && n->next; n = n->next) {
1791 if (MDOC_ELEM == n->type && MDOC_Nm == n->tok)
1792 continue;
1793 if (MDOC_TEXT == n->type)
1794 continue;
1795 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_BADNAMESEC);
1796 }
1797
1798 assert(n);
1799 if (MDOC_BLOCK == n->type && MDOC_Nd == n->tok)
1800 return(1);
1801
1802 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_BADNAMESEC);
1803 return(1);
1804 }
1805
1806 static int
1807 post_sh_head(POST_ARGS)
1808 {
1809 char buf[BUFSIZ];
1810 enum mdoc_sec sec;
1811
1812 /*
1813 * Process a new section. Sections are either "named" or
1814 * "custom". Custom sections are user-defined, while named ones
1815 * follow a conventional order and may only appear in certain
1816 * manual sections.
1817 */
1818
1819 if ( ! concat(mdoc, buf, mdoc->last->child, BUFSIZ))
1820 return(0);
1821
1822 sec = mdoc_str2sec(buf);
1823
1824 /* The NAME should be first. */
1825
1826 if (SEC_NAME != sec && SEC_NONE == mdoc->lastnamed)
1827 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_NAMESECFIRST);
1828
1829 /* The SYNOPSIS gets special attention in other areas. */
1830
1831 if (SEC_SYNOPSIS == sec)
1832 mdoc->flags |= MDOC_SYNOPSIS;
1833 else
1834 mdoc->flags &= ~MDOC_SYNOPSIS;
1835
1836 /* Mark our last section. */
1837
1838 mdoc->lastsec = sec;
1839
1840 /* We don't care about custom sections after this. */
1841
1842 if (SEC_CUSTOM == sec)
1843 return(1);
1844
1845 /*
1846 * Check whether our non-custom section is being repeated or is
1847 * out of order.
1848 */
1849
1850 if (sec == mdoc->lastnamed)
1851 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_SECREP);
1852
1853 if (sec < mdoc->lastnamed)
1854 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_SECOOO);
1855
1856 /* Mark the last named section. */
1857
1858 mdoc->lastnamed = sec;
1859
1860 /* Check particular section/manual conventions. */
1861
1862 assert(mdoc->meta.msec);
1863
1864 switch (sec) {
1865 case (SEC_RETURN_VALUES):
1866 /* FALLTHROUGH */
1867 case (SEC_ERRORS):
1868 /* FALLTHROUGH */
1869 case (SEC_LIBRARY):
1870 if (*mdoc->meta.msec == '2')
1871 break;
1872 if (*mdoc->meta.msec == '3')
1873 break;
1874 if (*mdoc->meta.msec == '9')
1875 break;
1876 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_SECMSEC);
1877 break;
1878 default:
1879 break;
1880 }
1881
1882 return(1);
1883 }
1884
1885 static int
1886 pre_par(PRE_ARGS)
1887 {
1888
1889 if (NULL == mdoc->last)
1890 return(1);
1891
1892 /*
1893 * Don't allow prior `Lp' or `Pp' prior to a paragraph-type
1894 * block: `Lp', `Pp', or non-compact `Bd' or `Bl'.
1895 */
1896
1897 if (MDOC_Pp != mdoc->last->tok && MDOC_Lp != mdoc->last->tok)
1898 return(1);
1899
1900 if (MDOC_Bl == n->tok && n->data.Bl->comp)
1901 return(1);
1902 if (MDOC_Bd == n->tok && n->data.Bd->comp)
1903 return(1);
1904
1905 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_IGNPAR);
1906 mdoc_node_delete(mdoc, mdoc->last);
1907 return(1);
1908 }
1909
1910 static int
1911 pre_literal(PRE_ARGS)
1912 {
1913
1914 if (MDOC_BODY != n->type)
1915 return(1);
1916
1917 /*
1918 * The `Dl' (note "el" not "one") and `Bd -literal' and `Bd
1919 * -unfilled' macros set MDOC_LITERAL on entrance to the body.
1920 */
1921
1922 switch (n->tok) {
1923 case (MDOC_Dl):
1924 mdoc->flags |= MDOC_LITERAL;
1925 break;
1926 case (MDOC_Bd):
1927 assert(n->data.Bd);
1928 if (DISP_literal == n->data.Bd->type)
1929 mdoc->flags |= MDOC_LITERAL;
1930 if (DISP_unfilled == n->data.Bd->type)
1931 mdoc->flags |= MDOC_LITERAL;
1932 break;
1933 default:
1934 abort();
1935 /* NOTREACHED */
1936 }
1937
1938 return(1);
1939 }
1940
1941 static int
1942 post_dd(POST_ARGS)
1943 {
1944 char buf[DATESIZE];
1945 struct mdoc_node *n;
1946
1947 n = mdoc->last;
1948
1949 if (NULL == n->child) {
1950 mdoc->meta.date = time(NULL);
1951 return(1);
1952 }
1953
1954 if ( ! concat(mdoc, buf, n->child, DATESIZE))
1955 return(0);
1956
1957 mdoc->meta.date = mandoc_a2time
1958 (MTIME_MDOCDATE | MTIME_CANONICAL, buf);
1959
1960 if (0 == mdoc->meta.date) {
1961 mdoc_nmsg(mdoc, n, MANDOCERR_BADDATE);
1962 mdoc->meta.date = time(NULL);
1963 }
1964
1965 return(1);
1966 }
1967
1968 static int
1969 post_dt(POST_ARGS)
1970 {
1971 struct mdoc_node *nn, *n;
1972 const char *cp;
1973 char *p;
1974
1975 n = mdoc->last;
1976
1977 if (mdoc->meta.title)
1978 free(mdoc->meta.title);
1979 if (mdoc->meta.vol)
1980 free(mdoc->meta.vol);
1981 if (mdoc->meta.arch)
1982 free(mdoc->meta.arch);
1983
1984 mdoc->meta.title = mdoc->meta.vol = mdoc->meta.arch = NULL;
1985
1986 /* First make all characters uppercase. */
1987
1988 if (NULL != (nn = n->child))
1989 for (p = nn->string; *p; p++) {
1990 if (toupper((u_char)*p) == *p)
1991 continue;
1992
1993 /*
1994 * FIXME: don't be lazy: have this make all
1995 * characters be uppercase and just warn once.
1996 */
1997 mdoc_nmsg(mdoc, nn, MANDOCERR_UPPERCASE);
1998 break;
1999 }
2000
2001 /* Handles: `.Dt'
2002 * --> title = unknown, volume = local, msec = 0, arch = NULL
2003 */
2004
2005 if (NULL == (nn = n->child)) {
2006 /* XXX: make these macro values. */
2007 /* FIXME: warn about missing values. */
2008 mdoc->meta.title = mandoc_strdup("UNKNOWN");
2009 mdoc->meta.vol = mandoc_strdup("LOCAL");
2010 mdoc->meta.msec = mandoc_strdup("1");
2011 return(1);
2012 }
2013
2014 /* Handles: `.Dt TITLE'
2015 * --> title = TITLE, volume = local, msec = 0, arch = NULL
2016 */
2017
2018 mdoc->meta.title = mandoc_strdup
2019 ('\0' == nn->string[0] ? "UNKNOWN" : nn->string);
2020
2021 if (NULL == (nn = nn->next)) {
2022 /* FIXME: warn about missing msec. */
2023 /* XXX: make this a macro value. */
2024 mdoc->meta.vol = mandoc_strdup("LOCAL");
2025 mdoc->meta.msec = mandoc_strdup("1");
2026 return(1);
2027 }
2028
2029 /* Handles: `.Dt TITLE SEC'
2030 * --> title = TITLE, volume = SEC is msec ?
2031 * format(msec) : SEC,
2032 * msec = SEC is msec ? atoi(msec) : 0,
2033 * arch = NULL
2034 */
2035
2036 cp = mdoc_a2msec(nn->string);
2037 if (cp) {
2038 mdoc->meta.vol = mandoc_strdup(cp);
2039 mdoc->meta.msec = mandoc_strdup(nn->string);
2040 } else {
2041 mdoc_nmsg(mdoc, n, MANDOCERR_BADMSEC);
2042 mdoc->meta.vol = mandoc_strdup(nn->string);
2043 mdoc->meta.msec = mandoc_strdup(nn->string);
2044 }
2045
2046 if (NULL == (nn = nn->next))
2047 return(1);
2048
2049 /* Handles: `.Dt TITLE SEC VOL'
2050 * --> title = TITLE, volume = VOL is vol ?
2051 * format(VOL) :
2052 * VOL is arch ? format(arch) :
2053 * VOL
2054 */
2055
2056 cp = mdoc_a2vol(nn->string);
2057 if (cp) {
2058 free(mdoc->meta.vol);
2059 mdoc->meta.vol = mandoc_strdup(cp);
2060 } else {
2061 /* FIXME: warn about bad arch. */
2062 cp = mdoc_a2arch(nn->string);
2063 if (NULL == cp) {
2064 free(mdoc->meta.vol);
2065 mdoc->meta.vol = mandoc_strdup(nn->string);
2066 } else
2067 mdoc->meta.arch = mandoc_strdup(cp);
2068 }
2069
2070 /* Ignore any subsequent parameters... */
2071 /* FIXME: warn about subsequent parameters. */
2072
2073 return(1);
2074 }
2075
2076 static int
2077 post_prol(POST_ARGS)
2078 {
2079 /*
2080 * Remove prologue macros from the document after they're
2081 * processed. The final document uses mdoc_meta for these
2082 * values and discards the originals.
2083 */
2084
2085 mdoc_node_delete(mdoc, mdoc->last);
2086 if (mdoc->meta.title && mdoc->meta.date && mdoc->meta.os)
2087 mdoc->flags |= MDOC_PBODY;
2088
2089 return(1);
2090 }
2091
2092 static int
2093 post_os(POST_ARGS)
2094 {
2095 struct mdoc_node *n;
2096 char buf[BUFSIZ];
2097 #ifndef OSNAME
2098 struct utsname utsname;
2099 #endif
2100
2101 n = mdoc->last;
2102
2103 /*
2104 * Set the operating system by way of the `Os' macro. Note that
2105 * if an argument isn't provided and -DOSNAME="\"foo\"" is
2106 * provided during compilation, this value will be used instead
2107 * of filling in "sysname release" from uname().
2108 */
2109
2110 if (mdoc->meta.os)
2111 free(mdoc->meta.os);
2112
2113 if ( ! concat(mdoc, buf, n->child, BUFSIZ))
2114 return(0);
2115
2116 /* XXX: yes, these can all be dynamically-adjusted buffers, but
2117 * it's really not worth the extra hackery.
2118 */
2119
2120 if ('\0' == buf[0]) {
2121 #ifdef OSNAME
2122 if (strlcat(buf, OSNAME, BUFSIZ) >= BUFSIZ) {
2123 mdoc_nmsg(mdoc, n, MANDOCERR_MEM);
2124 return(0);
2125 }
2126 #else /*!OSNAME */
2127 if (uname(&utsname)) {
2128 mdoc_nmsg(mdoc, n, MANDOCERR_UNAME);
2129 mdoc->meta.os = mandoc_strdup("UNKNOWN");
2130 return(post_prol(mdoc));
2131 }
2132
2133 if (strlcat(buf, utsname.sysname, BUFSIZ) >= BUFSIZ) {
2134 mdoc_nmsg(mdoc, n, MANDOCERR_MEM);
2135 return(0);
2136 }
2137 if (strlcat(buf, " ", BUFSIZ) >= BUFSIZ) {
2138 mdoc_nmsg(mdoc, n, MANDOCERR_MEM);
2139 return(0);
2140 }
2141 if (strlcat(buf, utsname.release, BUFSIZ) >= BUFSIZ) {
2142 mdoc_nmsg(mdoc, n, MANDOCERR_MEM);
2143 return(0);
2144 }
2145 #endif /*!OSNAME*/
2146 }
2147
2148 mdoc->meta.os = mandoc_strdup(buf);
2149 return(1);
2150 }
2151
2152 static int
2153 post_std(POST_ARGS)
2154 {
2155 struct mdoc_node *nn, *n;
2156
2157 n = mdoc->last;
2158
2159 /*
2160 * Macros accepting `-std' as an argument have the name of the
2161 * current document (`Nm') filled in as the argument if it's not
2162 * provided.
2163 */
2164
2165 if (n->child)
2166 return(1);
2167
2168 if (NULL == mdoc->meta.name)
2169 return(1);
2170
2171 nn = n;
2172 mdoc->next = MDOC_NEXT_CHILD;
2173
2174 if ( ! mdoc_word_alloc(mdoc, n->line, n->pos, mdoc->meta.name))
2175 return(0);
2176
2177 mdoc->last = nn;
2178 return(1);
2179 }
2180
2181 static int
2182 concat(struct mdoc *m, char *p, const struct mdoc_node *n, size_t sz)
2183 {
2184
2185 p[0] = '\0';
2186
2187 /*
2188 * Concatenate sibling nodes together. All siblings must be of
2189 * type MDOC_TEXT or an assertion is raised. Concatenation is
2190 * separated by a single whitespace. Returns 0 on fatal (string
2191 * overrun) error.
2192 */
2193
2194 for ( ; n; n = n->next) {
2195 assert(MDOC_TEXT == n->type);
2196
2197 if (strlcat(p, n->string, sz) >= sz) {
2198 mdoc_nmsg(m, n, MANDOCERR_MEM);
2199 return(0);
2200 }
2201
2202 if (NULL == n->next)
2203 continue;
2204
2205 if (strlcat(p, " ", sz) >= sz) {
2206 mdoc_nmsg(m, n, MANDOCERR_MEM);
2207 return(0);
2208 }
2209 }
2210
2211 return(1);
2212 }
2213