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Tiny optimisation in mandoc_isdelim() check.
[mandoc.git] / mdoc_validate.c
1 /* $Id: mdoc_validate.c,v 1.159 2011/03/15 16:23:51 kristaps Exp $ */
2 /*
3 * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
4 * Copyright (c) 2010, 2011 Ingo Schwarze <schwarze@openbsd.org>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18 #ifdef HAVE_CONFIG_H
19 #include "config.h"
20 #endif
21
22 #ifndef OSNAME
23 #include <sys/utsname.h>
24 #endif
25
26 #include <sys/types.h>
27
28 #include <assert.h>
29 #include <ctype.h>
30 #include <limits.h>
31 #include <stdio.h>
32 #include <stdlib.h>
33 #include <string.h>
34 #include <time.h>
35
36 #include "mandoc.h"
37 #include "libmdoc.h"
38 #include "libmandoc.h"
39
40 /* FIXME: .Bl -diag can't have non-text children in HEAD. */
41
42 #define PRE_ARGS struct mdoc *mdoc, struct mdoc_node *n
43 #define POST_ARGS struct mdoc *mdoc
44
45 #define NUMSIZ 32
46 #define DATESIZE 32
47
48 enum check_ineq {
49 CHECK_LT,
50 CHECK_GT,
51 CHECK_EQ
52 };
53
54 enum check_lvl {
55 CHECK_WARN,
56 CHECK_ERROR,
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 ewarn_eq0(POST_ARGS);
82 static int ewarn_eq1(POST_ARGS);
83 static int ewarn_ge1(POST_ARGS);
84 static int ewarn_le1(POST_ARGS);
85 static int hwarn_eq0(POST_ARGS);
86 static int hwarn_eq1(POST_ARGS);
87 static int hwarn_ge1(POST_ARGS);
88 static int hwarn_le1(POST_ARGS);
89
90 static int post_an(POST_ARGS);
91 static int post_at(POST_ARGS);
92 static int post_bf(POST_ARGS);
93 static int post_bl(POST_ARGS);
94 static int post_bl_block(POST_ARGS);
95 static int post_bl_block_width(POST_ARGS);
96 static int post_bl_block_tag(POST_ARGS);
97 static int post_bl_head(POST_ARGS);
98 static int post_bx(POST_ARGS);
99 static int post_dd(POST_ARGS);
100 static int post_dt(POST_ARGS);
101 static int post_defaults(POST_ARGS);
102 static int post_literal(POST_ARGS);
103 static int post_eoln(POST_ARGS);
104 static int post_it(POST_ARGS);
105 static int post_lb(POST_ARGS);
106 static int post_nm(POST_ARGS);
107 static int post_ns(POST_ARGS);
108 static int post_os(POST_ARGS);
109 static int post_ignpar(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_bx[] = { post_bx, NULL };
140 static v_post posts_bool[] = { ebool, NULL };
141 static v_post posts_eoln[] = { post_eoln, NULL };
142 static v_post posts_defaults[] = { post_defaults, NULL };
143 static v_post posts_dd[] = { post_dd, post_prol, NULL };
144 static v_post posts_dl[] = { post_literal, bwarn_ge1, NULL };
145 static v_post posts_dt[] = { post_dt, post_prol, NULL };
146 static v_post posts_fo[] = { hwarn_eq1, bwarn_ge1, NULL };
147 static v_post posts_it[] = { post_it, NULL };
148 static v_post posts_lb[] = { post_lb, NULL };
149 static v_post posts_nd[] = { berr_ge1, NULL };
150 static v_post posts_nm[] = { post_nm, NULL };
151 static v_post posts_notext[] = { ewarn_eq0, NULL };
152 static v_post posts_ns[] = { post_ns, NULL };
153 static v_post posts_os[] = { post_os, post_prol, NULL };
154 static v_post posts_rs[] = { post_rs, NULL };
155 static v_post posts_sh[] = { post_ignpar, hwarn_ge1, bwarn_ge1, post_sh, NULL };
156 static v_post posts_sp[] = { ewarn_le1, NULL };
157 static v_post posts_ss[] = { post_ignpar, hwarn_ge1, bwarn_ge1, NULL };
158 static v_post posts_st[] = { post_st, NULL };
159 static v_post posts_std[] = { post_std, NULL };
160 static v_post posts_text[] = { ewarn_ge1, NULL };
161 static v_post posts_text1[] = { ewarn_eq1, NULL };
162 static v_post posts_vt[] = { post_vt, NULL };
163 static v_post posts_wline[] = { bwarn_ge1, NULL };
164 static v_pre pres_an[] = { pre_an, NULL };
165 static v_pre pres_bd[] = { pre_display, pre_bd, pre_literal, pre_par, NULL };
166 static v_pre pres_bl[] = { pre_bl, pre_par, NULL };
167 static v_pre pres_d1[] = { pre_display, NULL };
168 static v_pre pres_dl[] = { pre_literal, pre_display, NULL };
169 static v_pre pres_dd[] = { pre_dd, NULL };
170 static v_pre pres_dt[] = { pre_dt, NULL };
171 static v_pre pres_er[] = { NULL, NULL };
172 static v_pre pres_fd[] = { NULL, NULL };
173 static v_pre pres_it[] = { pre_it, pre_par, NULL };
174 static v_pre pres_os[] = { pre_os, NULL };
175 static v_pre pres_pp[] = { pre_par, NULL };
176 static v_pre pres_sh[] = { pre_sh, NULL };
177 static v_pre pres_ss[] = { pre_ss, NULL };
178 static v_pre pres_std[] = { pre_std, NULL };
179
180 const struct valids mdoc_valids[MDOC_MAX] = {
181 { NULL, NULL }, /* Ap */
182 { pres_dd, posts_dd }, /* Dd */
183 { pres_dt, posts_dt }, /* Dt */
184 { pres_os, posts_os }, /* Os */
185 { pres_sh, posts_sh }, /* Sh */
186 { pres_ss, posts_ss }, /* Ss */
187 { pres_pp, posts_notext }, /* Pp */
188 { pres_d1, posts_wline }, /* D1 */
189 { pres_dl, posts_dl }, /* Dl */
190 { pres_bd, posts_bd }, /* Bd */
191 { NULL, NULL }, /* Ed */
192 { pres_bl, posts_bl }, /* Bl */
193 { NULL, NULL }, /* El */
194 { pres_it, posts_it }, /* It */
195 { NULL, NULL }, /* Ad */
196 { pres_an, posts_an }, /* An */
197 { NULL, posts_defaults }, /* Ar */
198 { NULL, NULL }, /* Cd */
199 { NULL, NULL }, /* Cm */
200 { NULL, NULL }, /* Dv */
201 { pres_er, NULL }, /* Er */
202 { NULL, NULL }, /* Ev */
203 { pres_std, posts_std }, /* Ex */
204 { NULL, NULL }, /* Fa */
205 { pres_fd, posts_text }, /* Fd */
206 { NULL, NULL }, /* Fl */
207 { NULL, NULL }, /* Fn */
208 { NULL, NULL }, /* Ft */
209 { NULL, NULL }, /* Ic */
210 { NULL, posts_text1 }, /* In */
211 { NULL, posts_defaults }, /* Li */
212 { NULL, posts_nd }, /* Nd */
213 { NULL, posts_nm }, /* Nm */
214 { NULL, NULL }, /* Op */
215 { NULL, NULL }, /* Ot */
216 { NULL, posts_defaults }, /* Pa */
217 { pres_std, posts_std }, /* Rv */
218 { NULL, posts_st }, /* St */
219 { NULL, NULL }, /* Va */
220 { NULL, posts_vt }, /* Vt */
221 { NULL, posts_text }, /* Xr */
222 { NULL, posts_text }, /* %A */
223 { NULL, posts_text }, /* %B */ /* FIXME: can be used outside Rs/Re. */
224 { NULL, posts_text }, /* %D */
225 { NULL, posts_text }, /* %I */
226 { NULL, posts_text }, /* %J */
227 { NULL, posts_text }, /* %N */
228 { NULL, posts_text }, /* %O */
229 { NULL, posts_text }, /* %P */
230 { NULL, posts_text }, /* %R */
231 { NULL, posts_text }, /* %T */ /* FIXME: can be used outside Rs/Re. */
232 { NULL, posts_text }, /* %V */
233 { NULL, NULL }, /* Ac */
234 { NULL, NULL }, /* Ao */
235 { NULL, NULL }, /* Aq */
236 { NULL, posts_at }, /* At */
237 { NULL, NULL }, /* Bc */
238 { NULL, posts_bf }, /* Bf */
239 { NULL, NULL }, /* Bo */
240 { NULL, NULL }, /* Bq */
241 { NULL, NULL }, /* Bsx */
242 { NULL, posts_bx }, /* Bx */
243 { NULL, posts_bool }, /* Db */
244 { NULL, NULL }, /* Dc */
245 { NULL, NULL }, /* Do */
246 { NULL, NULL }, /* Dq */
247 { NULL, NULL }, /* Ec */
248 { NULL, NULL }, /* Ef */
249 { NULL, NULL }, /* Em */
250 { NULL, NULL }, /* Eo */
251 { NULL, NULL }, /* Fx */
252 { NULL, NULL }, /* Ms */
253 { NULL, posts_notext }, /* No */
254 { NULL, posts_ns }, /* Ns */
255 { NULL, NULL }, /* Nx */
256 { NULL, NULL }, /* Ox */
257 { NULL, NULL }, /* Pc */
258 { NULL, posts_text1 }, /* Pf */
259 { NULL, NULL }, /* Po */
260 { NULL, NULL }, /* Pq */
261 { NULL, NULL }, /* Qc */
262 { NULL, NULL }, /* Ql */
263 { NULL, NULL }, /* Qo */
264 { NULL, NULL }, /* Qq */
265 { NULL, NULL }, /* Re */
266 { NULL, posts_rs }, /* Rs */
267 { NULL, NULL }, /* Sc */
268 { NULL, NULL }, /* So */
269 { NULL, NULL }, /* Sq */
270 { NULL, posts_bool }, /* Sm */
271 { NULL, NULL }, /* Sx */
272 { NULL, NULL }, /* Sy */
273 { NULL, NULL }, /* Tn */
274 { NULL, NULL }, /* Ux */
275 { NULL, NULL }, /* Xc */
276 { NULL, NULL }, /* Xo */
277 { NULL, posts_fo }, /* Fo */
278 { NULL, NULL }, /* Fc */
279 { NULL, NULL }, /* Oo */
280 { NULL, NULL }, /* Oc */
281 { NULL, posts_bk }, /* Bk */
282 { NULL, NULL }, /* Ek */
283 { NULL, posts_eoln }, /* Bt */
284 { NULL, NULL }, /* Hf */
285 { NULL, NULL }, /* Fr */
286 { NULL, posts_eoln }, /* Ud */
287 { NULL, posts_lb }, /* Lb */
288 { NULL, posts_notext }, /* Lp */
289 { NULL, NULL }, /* Lk */
290 { NULL, posts_defaults }, /* Mt */
291 { NULL, NULL }, /* Brq */
292 { NULL, NULL }, /* Bro */
293 { NULL, NULL }, /* Brc */
294 { NULL, posts_text }, /* %C */
295 { NULL, NULL }, /* Es */
296 { NULL, NULL }, /* En */
297 { NULL, NULL }, /* Dx */
298 { NULL, posts_text }, /* %Q */
299 { NULL, posts_notext }, /* br */
300 { pres_pp, posts_sp }, /* sp */
301 { NULL, posts_text1 }, /* %U */
302 { NULL, NULL }, /* Ta */
303 };
304
305 #define RSORD_MAX 14 /* Number of `Rs' blocks. */
306
307 static const enum mdoct rsord[RSORD_MAX] = {
308 MDOC__A,
309 MDOC__T,
310 MDOC__B,
311 MDOC__I,
312 MDOC__J,
313 MDOC__R,
314 MDOC__N,
315 MDOC__V,
316 MDOC__P,
317 MDOC__Q,
318 MDOC__D,
319 MDOC__O,
320 MDOC__C,
321 MDOC__U
322 };
323
324
325 int
326 mdoc_valid_pre(struct mdoc *mdoc, struct mdoc_node *n)
327 {
328 v_pre *p;
329 int line, pos;
330 char *tp;
331
332 switch (n->type) {
333 case (MDOC_TEXT):
334 tp = n->string;
335 line = n->line;
336 pos = n->pos;
337 check_text(mdoc, line, pos, tp);
338 /* FALLTHROUGH */
339 case (MDOC_TBL):
340 /* FALLTHROUGH */
341 case (MDOC_EQN):
342 /* FALLTHROUGH */
343 case (MDOC_ROOT):
344 return(1);
345 default:
346 break;
347 }
348
349 check_args(mdoc, n);
350
351 if (NULL == mdoc_valids[n->tok].pre)
352 return(1);
353 for (p = mdoc_valids[n->tok].pre; *p; p++)
354 if ( ! (*p)(mdoc, n))
355 return(0);
356 return(1);
357 }
358
359
360 int
361 mdoc_valid_post(struct mdoc *mdoc)
362 {
363 v_post *p;
364
365 if (MDOC_VALID & mdoc->last->flags)
366 return(1);
367 mdoc->last->flags |= MDOC_VALID;
368
369 switch (mdoc->last->type) {
370 case (MDOC_TEXT):
371 /* FALLTHROUGH */
372 case (MDOC_EQN):
373 /* FALLTHROUGH */
374 case (MDOC_TBL):
375 return(1);
376 case (MDOC_ROOT):
377 return(post_root(mdoc));
378 default:
379 break;
380 }
381
382 if (NULL == mdoc_valids[mdoc->last->tok].post)
383 return(1);
384 for (p = mdoc_valids[mdoc->last->tok].post; *p; p++)
385 if ( ! (*p)(mdoc))
386 return(0);
387
388 return(1);
389 }
390
391 static int
392 check_count(struct mdoc *m, enum mdoc_type type,
393 enum check_lvl lvl, enum check_ineq ineq, int val)
394 {
395 const char *p;
396 enum mandocerr t;
397
398 if (m->last->type != type)
399 return(1);
400
401 switch (ineq) {
402 case (CHECK_LT):
403 p = "less than ";
404 if (m->last->nchild < val)
405 return(1);
406 break;
407 case (CHECK_GT):
408 p = "more than ";
409 if (m->last->nchild > val)
410 return(1);
411 break;
412 case (CHECK_EQ):
413 p = "";
414 if (val == m->last->nchild)
415 return(1);
416 break;
417 default:
418 abort();
419 /* NOTREACHED */
420 }
421
422 t = lvl == CHECK_WARN ? MANDOCERR_ARGCWARN : MANDOCERR_ARGCOUNT;
423
424 return(mdoc_vmsg(m, t, m->last->line, m->last->pos,
425 "want %s%d children (have %d)",
426 p, val, m->last->nchild));
427 }
428
429 static int
430 berr_ge1(POST_ARGS)
431 {
432
433 return(check_count(mdoc, MDOC_BODY, CHECK_ERROR, CHECK_GT, 0));
434 }
435
436 static int
437 bwarn_ge1(POST_ARGS)
438 {
439 return(check_count(mdoc, MDOC_BODY, CHECK_WARN, CHECK_GT, 0));
440 }
441
442 static int
443 ewarn_eq0(POST_ARGS)
444 {
445 return(check_count(mdoc, MDOC_ELEM, CHECK_WARN, CHECK_EQ, 0));
446 }
447
448 static int
449 ewarn_eq1(POST_ARGS)
450 {
451 return(check_count(mdoc, MDOC_ELEM, CHECK_WARN, CHECK_EQ, 1));
452 }
453
454 static int
455 ewarn_ge1(POST_ARGS)
456 {
457 return(check_count(mdoc, MDOC_ELEM, CHECK_WARN, CHECK_GT, 0));
458 }
459
460 static int
461 ewarn_le1(POST_ARGS)
462 {
463 return(check_count(mdoc, MDOC_ELEM, CHECK_WARN, CHECK_LT, 2));
464 }
465
466 static int
467 hwarn_eq0(POST_ARGS)
468 {
469 return(check_count(mdoc, MDOC_HEAD, CHECK_WARN, CHECK_EQ, 0));
470 }
471
472 static int
473 hwarn_eq1(POST_ARGS)
474 {
475 return(check_count(mdoc, MDOC_HEAD, CHECK_WARN, CHECK_EQ, 1));
476 }
477
478 static int
479 hwarn_ge1(POST_ARGS)
480 {
481 return(check_count(mdoc, MDOC_HEAD, CHECK_WARN, CHECK_GT, 0));
482 }
483
484 static int
485 hwarn_le1(POST_ARGS)
486 {
487 return(check_count(mdoc, MDOC_HEAD, CHECK_WARN, CHECK_LT, 2));
488 }
489
490 static void
491 check_args(struct mdoc *m, struct mdoc_node *n)
492 {
493 int i;
494
495 if (NULL == n->args)
496 return;
497
498 assert(n->args->argc);
499 for (i = 0; i < (int)n->args->argc; i++)
500 check_argv(m, n, &n->args->argv[i]);
501 }
502
503 static void
504 check_argv(struct mdoc *m, struct mdoc_node *n, struct mdoc_argv *v)
505 {
506 int i;
507
508 for (i = 0; i < (int)v->sz; i++)
509 check_text(m, v->line, v->pos, v->value[i]);
510
511 /* FIXME: move to post_std(). */
512
513 if (MDOC_Std == v->arg)
514 if ( ! (v->sz || m->meta.name))
515 mdoc_nmsg(m, n, MANDOCERR_NONAME);
516 }
517
518 static void
519 check_text(struct mdoc *m, int ln, int pos, char *p)
520 {
521 int c;
522 size_t sz;
523
524 for ( ; *p; p++, pos++) {
525 sz = strcspn(p, "\t\\");
526 p += (int)sz;
527
528 if ('\0' == *p)
529 break;
530
531 pos += (int)sz;
532
533 if ('\t' == *p) {
534 if ( ! (MDOC_LITERAL & m->flags))
535 mdoc_pmsg(m, ln, pos, MANDOCERR_BADTAB);
536 continue;
537 }
538
539 if (0 == (c = mandoc_special(p))) {
540 mdoc_pmsg(m, ln, pos, MANDOCERR_BADESCAPE);
541 continue;
542 }
543
544 p += c - 1;
545 pos += c - 1;
546 }
547 }
548
549 static int
550 check_parent(PRE_ARGS, enum mdoct tok, enum mdoc_type t)
551 {
552
553 assert(n->parent);
554 if ((MDOC_ROOT == t || tok == n->parent->tok) &&
555 (t == n->parent->type))
556 return(1);
557
558 mdoc_vmsg(mdoc, MANDOCERR_SYNTCHILD,
559 n->line, n->pos, "want parent %s",
560 MDOC_ROOT == t ? "<root>" :
561 mdoc_macronames[tok]);
562 return(0);
563 }
564
565
566 static int
567 pre_display(PRE_ARGS)
568 {
569 struct mdoc_node *node;
570
571 if (MDOC_BLOCK != n->type)
572 return(1);
573
574 for (node = mdoc->last->parent; node; node = node->parent)
575 if (MDOC_BLOCK == node->type)
576 if (MDOC_Bd == node->tok)
577 break;
578
579 if (node)
580 mdoc_nmsg(mdoc, n, MANDOCERR_NESTEDDISP);
581
582 return(1);
583 }
584
585
586 static int
587 pre_bl(PRE_ARGS)
588 {
589 int i, comp, dup;
590 const char *offs, *width;
591 enum mdoc_list lt;
592 struct mdoc_node *np;
593
594 if (MDOC_BLOCK != n->type) {
595 if (ENDBODY_NOT != n->end) {
596 assert(n->pending);
597 np = n->pending->parent;
598 } else
599 np = n->parent;
600
601 assert(np);
602 assert(MDOC_BLOCK == np->type);
603 assert(MDOC_Bl == np->tok);
604 return(1);
605 }
606
607 /*
608 * First figure out which kind of list to use: bind ourselves to
609 * the first mentioned list type and warn about any remaining
610 * ones. If we find no list type, we default to LIST_item.
611 */
612
613 /* LINTED */
614 for (i = 0; n->args && i < (int)n->args->argc; i++) {
615 lt = LIST__NONE;
616 dup = comp = 0;
617 width = offs = NULL;
618 switch (n->args->argv[i].arg) {
619 /* Set list types. */
620 case (MDOC_Bullet):
621 lt = LIST_bullet;
622 break;
623 case (MDOC_Dash):
624 lt = LIST_dash;
625 break;
626 case (MDOC_Enum):
627 lt = LIST_enum;
628 break;
629 case (MDOC_Hyphen):
630 lt = LIST_hyphen;
631 break;
632 case (MDOC_Item):
633 lt = LIST_item;
634 break;
635 case (MDOC_Tag):
636 lt = LIST_tag;
637 break;
638 case (MDOC_Diag):
639 lt = LIST_diag;
640 break;
641 case (MDOC_Hang):
642 lt = LIST_hang;
643 break;
644 case (MDOC_Ohang):
645 lt = LIST_ohang;
646 break;
647 case (MDOC_Inset):
648 lt = LIST_inset;
649 break;
650 case (MDOC_Column):
651 lt = LIST_column;
652 break;
653 /* Set list arguments. */
654 case (MDOC_Compact):
655 dup = n->norm->Bl.comp;
656 comp = 1;
657 break;
658 case (MDOC_Width):
659 dup = (NULL != n->norm->Bl.width);
660 width = n->args->argv[i].value[0];
661 break;
662 case (MDOC_Offset):
663 /* NB: this can be empty! */
664 if (n->args->argv[i].sz) {
665 offs = n->args->argv[i].value[0];
666 dup = (NULL != n->norm->Bl.offs);
667 break;
668 }
669 mdoc_nmsg(mdoc, n, MANDOCERR_IGNARGV);
670 break;
671 default:
672 continue;
673 }
674
675 /* Check: duplicate auxiliary arguments. */
676
677 if (dup)
678 mdoc_nmsg(mdoc, n, MANDOCERR_ARGVREP);
679
680 if (comp && ! dup)
681 n->norm->Bl.comp = comp;
682 if (offs && ! dup)
683 n->norm->Bl.offs = offs;
684 if (width && ! dup)
685 n->norm->Bl.width = width;
686
687 /* Check: multiple list types. */
688
689 if (LIST__NONE != lt && n->norm->Bl.type != LIST__NONE)
690 mdoc_nmsg(mdoc, n, MANDOCERR_LISTREP);
691
692 /* Assign list type. */
693
694 if (LIST__NONE != lt && n->norm->Bl.type == LIST__NONE) {
695 n->norm->Bl.type = lt;
696 /* Set column information, too. */
697 if (LIST_column == lt) {
698 n->norm->Bl.ncols =
699 n->args->argv[i].sz;
700 n->norm->Bl.cols = (const char **)
701 n->args->argv[i].value;
702 }
703 }
704
705 /* The list type should come first. */
706
707 if (n->norm->Bl.type == LIST__NONE)
708 if (n->norm->Bl.width ||
709 n->norm->Bl.offs ||
710 n->norm->Bl.comp)
711 mdoc_nmsg(mdoc, n, MANDOCERR_LISTFIRST);
712
713 continue;
714 }
715
716 /* Allow lists to default to LIST_item. */
717
718 if (LIST__NONE == n->norm->Bl.type) {
719 mdoc_nmsg(mdoc, n, MANDOCERR_LISTTYPE);
720 n->norm->Bl.type = LIST_item;
721 }
722
723 /*
724 * Validate the width field. Some list types don't need width
725 * types and should be warned about them. Others should have it
726 * and must also be warned.
727 */
728
729 switch (n->norm->Bl.type) {
730 case (LIST_tag):
731 if (n->norm->Bl.width)
732 break;
733 mdoc_nmsg(mdoc, n, MANDOCERR_NOWIDTHARG);
734 break;
735 case (LIST_column):
736 /* FALLTHROUGH */
737 case (LIST_diag):
738 /* FALLTHROUGH */
739 case (LIST_ohang):
740 /* FALLTHROUGH */
741 case (LIST_inset):
742 /* FALLTHROUGH */
743 case (LIST_item):
744 if (n->norm->Bl.width)
745 mdoc_nmsg(mdoc, n, MANDOCERR_IGNARGV);
746 break;
747 default:
748 break;
749 }
750
751 return(1);
752 }
753
754
755 static int
756 pre_bd(PRE_ARGS)
757 {
758 int i, dup, comp;
759 enum mdoc_disp dt;
760 const char *offs;
761 struct mdoc_node *np;
762
763 if (MDOC_BLOCK != n->type) {
764 if (ENDBODY_NOT != n->end) {
765 assert(n->pending);
766 np = n->pending->parent;
767 } else
768 np = n->parent;
769
770 assert(np);
771 assert(MDOC_BLOCK == np->type);
772 assert(MDOC_Bd == np->tok);
773 return(1);
774 }
775
776 /* LINTED */
777 for (i = 0; n->args && i < (int)n->args->argc; i++) {
778 dt = DISP__NONE;
779 dup = comp = 0;
780 offs = NULL;
781
782 switch (n->args->argv[i].arg) {
783 case (MDOC_Centred):
784 dt = DISP_centred;
785 break;
786 case (MDOC_Ragged):
787 dt = DISP_ragged;
788 break;
789 case (MDOC_Unfilled):
790 dt = DISP_unfilled;
791 break;
792 case (MDOC_Filled):
793 dt = DISP_filled;
794 break;
795 case (MDOC_Literal):
796 dt = DISP_literal;
797 break;
798 case (MDOC_File):
799 mdoc_nmsg(mdoc, n, MANDOCERR_BADDISP);
800 return(0);
801 case (MDOC_Offset):
802 /* NB: this can be empty! */
803 if (n->args->argv[i].sz) {
804 offs = n->args->argv[i].value[0];
805 dup = (NULL != n->norm->Bd.offs);
806 break;
807 }
808 mdoc_nmsg(mdoc, n, MANDOCERR_IGNARGV);
809 break;
810 case (MDOC_Compact):
811 comp = 1;
812 dup = n->norm->Bd.comp;
813 break;
814 default:
815 abort();
816 /* NOTREACHED */
817 }
818
819 /* Check whether we have duplicates. */
820
821 if (dup)
822 mdoc_nmsg(mdoc, n, MANDOCERR_ARGVREP);
823
824 /* Make our auxiliary assignments. */
825
826 if (offs && ! dup)
827 n->norm->Bd.offs = offs;
828 if (comp && ! dup)
829 n->norm->Bd.comp = comp;
830
831 /* Check whether a type has already been assigned. */
832
833 if (DISP__NONE != dt && n->norm->Bd.type != DISP__NONE)
834 mdoc_nmsg(mdoc, n, MANDOCERR_DISPREP);
835
836 /* Make our type assignment. */
837
838 if (DISP__NONE != dt && n->norm->Bd.type == DISP__NONE)
839 n->norm->Bd.type = dt;
840 }
841
842 if (DISP__NONE == n->norm->Bd.type) {
843 mdoc_nmsg(mdoc, n, MANDOCERR_DISPTYPE);
844 n->norm->Bd.type = DISP_ragged;
845 }
846
847 return(1);
848 }
849
850
851 static int
852 pre_ss(PRE_ARGS)
853 {
854
855 if (MDOC_BLOCK != n->type)
856 return(1);
857 return(check_parent(mdoc, n, MDOC_Sh, MDOC_BODY));
858 }
859
860
861 static int
862 pre_sh(PRE_ARGS)
863 {
864
865 if (MDOC_BLOCK != n->type)
866 return(1);
867
868 mdoc->regs->regs[(int)REG_nS].set = 0;
869 return(check_parent(mdoc, n, MDOC_MAX, MDOC_ROOT));
870 }
871
872
873 static int
874 pre_it(PRE_ARGS)
875 {
876
877 if (MDOC_BLOCK != n->type)
878 return(1);
879
880 return(check_parent(mdoc, n, MDOC_Bl, MDOC_BODY));
881 }
882
883
884 static int
885 pre_an(PRE_ARGS)
886 {
887 int i;
888
889 if (NULL == n->args)
890 return(1);
891
892 for (i = 1; i < (int)n->args->argc; i++)
893 mdoc_pmsg(mdoc, n->args->argv[i].line,
894 n->args->argv[i].pos, MANDOCERR_IGNARGV);
895
896 if (MDOC_Split == n->args->argv[0].arg)
897 n->norm->An.auth = AUTH_split;
898 else if (MDOC_Nosplit == n->args->argv[0].arg)
899 n->norm->An.auth = AUTH_nosplit;
900 else
901 abort();
902
903 return(1);
904 }
905
906 static int
907 pre_std(PRE_ARGS)
908 {
909
910 if (n->args && 1 == n->args->argc)
911 if (MDOC_Std == n->args->argv[0].arg)
912 return(1);
913
914 mdoc_nmsg(mdoc, n, MANDOCERR_NOARGV);
915 return(1);
916 }
917
918 static int
919 pre_dt(PRE_ARGS)
920 {
921
922 if (NULL == mdoc->meta.date || mdoc->meta.os)
923 mdoc_nmsg(mdoc, n, MANDOCERR_PROLOGOOO);
924
925 if (mdoc->meta.title)
926 mdoc_nmsg(mdoc, n, MANDOCERR_PROLOGREP);
927
928 return(1);
929 }
930
931 static int
932 pre_os(PRE_ARGS)
933 {
934
935 if (NULL == mdoc->meta.title || NULL == mdoc->meta.date)
936 mdoc_nmsg(mdoc, n, MANDOCERR_PROLOGOOO);
937
938 if (mdoc->meta.os)
939 mdoc_nmsg(mdoc, n, MANDOCERR_PROLOGREP);
940
941 return(1);
942 }
943
944 static int
945 pre_dd(PRE_ARGS)
946 {
947
948 if (mdoc->meta.title || mdoc->meta.os)
949 mdoc_nmsg(mdoc, n, MANDOCERR_PROLOGOOO);
950
951 if (mdoc->meta.date)
952 mdoc_nmsg(mdoc, n, MANDOCERR_PROLOGREP);
953
954 return(1);
955 }
956
957
958 static int
959 post_bf(POST_ARGS)
960 {
961 struct mdoc_node *np;
962 enum mdocargt arg;
963
964 /*
965 * Unlike other data pointers, these are "housed" by the HEAD
966 * element, which contains the goods.
967 */
968
969 if (MDOC_HEAD != mdoc->last->type) {
970 if (ENDBODY_NOT != mdoc->last->end) {
971 assert(mdoc->last->pending);
972 np = mdoc->last->pending->parent->head;
973 } else if (MDOC_BLOCK != mdoc->last->type) {
974 np = mdoc->last->parent->head;
975 } else
976 np = mdoc->last->head;
977
978 assert(np);
979 assert(MDOC_HEAD == np->type);
980 assert(MDOC_Bf == np->tok);
981 return(1);
982 }
983
984 np = mdoc->last;
985 assert(MDOC_BLOCK == np->parent->type);
986 assert(MDOC_Bf == np->parent->tok);
987
988 /*
989 * Cannot have both argument and parameter.
990 * If neither is specified, let it through with a warning.
991 */
992
993 if (np->parent->args && np->child) {
994 mdoc_nmsg(mdoc, np, MANDOCERR_SYNTARGVCOUNT);
995 return(0);
996 } else if (NULL == np->parent->args && NULL == np->child) {
997 mdoc_nmsg(mdoc, np, MANDOCERR_FONTTYPE);
998 return(1);
999 }
1000
1001 /* Extract argument into data. */
1002
1003 if (np->parent->args) {
1004 arg = np->parent->args->argv[0].arg;
1005 if (MDOC_Emphasis == arg)
1006 np->norm->Bf.font = FONT_Em;
1007 else if (MDOC_Literal == arg)
1008 np->norm->Bf.font = FONT_Li;
1009 else if (MDOC_Symbolic == arg)
1010 np->norm->Bf.font = FONT_Sy;
1011 else
1012 abort();
1013 return(1);
1014 }
1015
1016 /* Extract parameter into data. */
1017
1018 if (0 == strcmp(np->child->string, "Em"))
1019 np->norm->Bf.font = FONT_Em;
1020 else if (0 == strcmp(np->child->string, "Li"))
1021 np->norm->Bf.font = FONT_Li;
1022 else if (0 == strcmp(np->child->string, "Sy"))
1023 np->norm->Bf.font = FONT_Sy;
1024 else
1025 mdoc_nmsg(mdoc, np, MANDOCERR_FONTTYPE);
1026
1027 return(1);
1028 }
1029
1030 static int
1031 post_lb(POST_ARGS)
1032 {
1033 const char *p;
1034 char *buf;
1035 size_t sz;
1036
1037 check_count(mdoc, MDOC_ELEM, CHECK_WARN, CHECK_EQ, 1);
1038
1039 assert(mdoc->last->child);
1040 assert(MDOC_TEXT == mdoc->last->child->type);
1041
1042 p = mdoc_a2lib(mdoc->last->child->string);
1043
1044 /* If lookup ok, replace with table value. */
1045
1046 if (p) {
1047 free(mdoc->last->child->string);
1048 mdoc->last->child->string = mandoc_strdup(p);
1049 return(1);
1050 }
1051
1052 /* If not, use "library ``xxxx''. */
1053
1054 sz = strlen(mdoc->last->child->string) +
1055 2 + strlen("\\(lqlibrary\\(rq");
1056 buf = mandoc_malloc(sz);
1057 snprintf(buf, sz, "library \\(lq%s\\(rq",
1058 mdoc->last->child->string);
1059 free(mdoc->last->child->string);
1060 mdoc->last->child->string = buf;
1061 return(1);
1062 }
1063
1064 static int
1065 post_eoln(POST_ARGS)
1066 {
1067
1068 if (mdoc->last->child)
1069 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_ARGSLOST);
1070 return(1);
1071 }
1072
1073
1074 static int
1075 post_vt(POST_ARGS)
1076 {
1077 const struct mdoc_node *n;
1078
1079 /*
1080 * The Vt macro comes in both ELEM and BLOCK form, both of which
1081 * have different syntaxes (yet more context-sensitive
1082 * behaviour). ELEM types must have a child, which is already
1083 * guaranteed by the in_line parsing routine; BLOCK types,
1084 * specifically the BODY, should only have TEXT children.
1085 */
1086
1087 if (MDOC_BODY != mdoc->last->type)
1088 return(1);
1089
1090 for (n = mdoc->last->child; n; n = n->next)
1091 if (MDOC_TEXT != n->type)
1092 mdoc_nmsg(mdoc, n, MANDOCERR_CHILD);
1093
1094 return(1);
1095 }
1096
1097
1098 static int
1099 post_nm(POST_ARGS)
1100 {
1101 char buf[BUFSIZ];
1102
1103 /* If no child specified, make sure we have the meta name. */
1104
1105 if (NULL == mdoc->last->child && NULL == mdoc->meta.name) {
1106 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_NONAME);
1107 return(1);
1108 } else if (mdoc->meta.name)
1109 return(1);
1110
1111 /* If no meta name, set it from the child. */
1112
1113 if ( ! concat(mdoc, buf, mdoc->last->child, BUFSIZ))
1114 return(0);
1115
1116 mdoc->meta.name = mandoc_strdup(buf);
1117
1118 return(1);
1119 }
1120
1121 static int
1122 post_literal(POST_ARGS)
1123 {
1124
1125 /*
1126 * The `Dl' (note "el" not "one") and `Bd' macros unset the
1127 * MDOC_LITERAL flag as they leave. Note that `Bd' only sets
1128 * this in literal mode, but it doesn't hurt to just switch it
1129 * off in general since displays can't be nested.
1130 */
1131
1132 if (MDOC_BODY == mdoc->last->type)
1133 mdoc->flags &= ~MDOC_LITERAL;
1134
1135 return(1);
1136 }
1137
1138 static int
1139 post_defaults(POST_ARGS)
1140 {
1141 struct mdoc_node *nn;
1142
1143 /*
1144 * The `Ar' defaults to "file ..." if no value is provided as an
1145 * argument; the `Mt' and `Pa' macros use "~"; the `Li' just
1146 * gets an empty string.
1147 */
1148
1149 if (mdoc->last->child)
1150 return(1);
1151
1152 nn = mdoc->last;
1153 mdoc->next = MDOC_NEXT_CHILD;
1154
1155 switch (nn->tok) {
1156 case (MDOC_Ar):
1157 if ( ! mdoc_word_alloc(mdoc, nn->line, nn->pos, "file"))
1158 return(0);
1159 if ( ! mdoc_word_alloc(mdoc, nn->line, nn->pos, "..."))
1160 return(0);
1161 break;
1162 case (MDOC_At):
1163 if ( ! mdoc_word_alloc(mdoc, nn->line, nn->pos, "AT&T"))
1164 return(0);
1165 if ( ! mdoc_word_alloc(mdoc, nn->line, nn->pos, "UNIX"))
1166 return(0);
1167 break;
1168 case (MDOC_Li):
1169 if ( ! mdoc_word_alloc(mdoc, nn->line, nn->pos, ""))
1170 return(0);
1171 break;
1172 case (MDOC_Pa):
1173 /* FALLTHROUGH */
1174 case (MDOC_Mt):
1175 if ( ! mdoc_word_alloc(mdoc, nn->line, nn->pos, "~"))
1176 return(0);
1177 break;
1178 default:
1179 abort();
1180 /* NOTREACHED */
1181 }
1182
1183 mdoc->last = nn;
1184 return(1);
1185 }
1186
1187 static int
1188 post_at(POST_ARGS)
1189 {
1190 const char *p, *q;
1191 char *buf;
1192 size_t sz;
1193
1194 /*
1195 * If we have a child, look it up in the standard keys. If a
1196 * key exist, use that instead of the child; if it doesn't,
1197 * prefix "AT&T UNIX " to the existing data.
1198 */
1199
1200 if (NULL == mdoc->last->child)
1201 return(1);
1202
1203 assert(MDOC_TEXT == mdoc->last->child->type);
1204 p = mdoc_a2att(mdoc->last->child->string);
1205
1206 if (p) {
1207 free(mdoc->last->child->string);
1208 mdoc->last->child->string = mandoc_strdup(p);
1209 } else {
1210 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_BADATT);
1211 p = "AT&T UNIX ";
1212 q = mdoc->last->child->string;
1213 sz = strlen(p) + strlen(q) + 1;
1214 buf = mandoc_malloc(sz);
1215 strlcpy(buf, p, sz);
1216 strlcat(buf, q, sz);
1217 free(mdoc->last->child->string);
1218 mdoc->last->child->string = buf;
1219 }
1220
1221 return(1);
1222 }
1223
1224 static int
1225 post_an(POST_ARGS)
1226 {
1227 struct mdoc_node *np;
1228
1229 np = mdoc->last;
1230 if (AUTH__NONE == np->norm->An.auth) {
1231 if (0 == np->child)
1232 check_count(mdoc, MDOC_ELEM, CHECK_WARN, CHECK_GT, 0);
1233 } else if (np->child)
1234 check_count(mdoc, MDOC_ELEM, CHECK_WARN, CHECK_EQ, 0);
1235
1236 return(1);
1237 }
1238
1239
1240 static int
1241 post_it(POST_ARGS)
1242 {
1243 int i, cols, rc;
1244 enum mdoc_list lt;
1245 struct mdoc_node *n, *c;
1246 enum mandocerr er;
1247
1248 if (MDOC_BLOCK != mdoc->last->type)
1249 return(1);
1250
1251 n = mdoc->last->parent->parent;
1252 lt = n->norm->Bl.type;
1253
1254 if (LIST__NONE == lt) {
1255 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_LISTTYPE);
1256 return(1);
1257 }
1258
1259 switch (lt) {
1260 case (LIST_tag):
1261 if (mdoc->last->head->child)
1262 break;
1263 /* FIXME: give this a dummy value. */
1264 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_NOARGS);
1265 break;
1266 case (LIST_hang):
1267 /* FALLTHROUGH */
1268 case (LIST_ohang):
1269 /* FALLTHROUGH */
1270 case (LIST_inset):
1271 /* FALLTHROUGH */
1272 case (LIST_diag):
1273 if (NULL == mdoc->last->head->child)
1274 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_NOARGS);
1275 break;
1276 case (LIST_bullet):
1277 /* FALLTHROUGH */
1278 case (LIST_dash):
1279 /* FALLTHROUGH */
1280 case (LIST_enum):
1281 /* FALLTHROUGH */
1282 case (LIST_hyphen):
1283 if (NULL == mdoc->last->body->child)
1284 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_NOBODY);
1285 /* FALLTHROUGH */
1286 case (LIST_item):
1287 if (mdoc->last->head->child)
1288 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_ARGSLOST);
1289 break;
1290 case (LIST_column):
1291 cols = (int)n->norm->Bl.ncols;
1292
1293 assert(NULL == mdoc->last->head->child);
1294
1295 if (NULL == mdoc->last->body->child)
1296 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_NOBODY);
1297
1298 for (i = 0, c = mdoc->last->child; c; c = c->next)
1299 if (MDOC_BODY == c->type)
1300 i++;
1301
1302 if (i < cols)
1303 er = MANDOCERR_ARGCOUNT;
1304 else if (i == cols || i == cols + 1)
1305 break;
1306 else
1307 er = MANDOCERR_SYNTARGCOUNT;
1308
1309 rc = mdoc_vmsg(mdoc, er,
1310 mdoc->last->line, mdoc->last->pos,
1311 "columns == %d (have %d)", cols, i);
1312 return(rc);
1313 default:
1314 break;
1315 }
1316
1317 return(1);
1318 }
1319
1320 static int
1321 post_bl_block(POST_ARGS)
1322 {
1323 struct mdoc_node *n;
1324
1325 /*
1326 * These are fairly complicated, so we've broken them into two
1327 * functions. post_bl_block_tag() is called when a -tag is
1328 * specified, but no -width (it must be guessed). The second
1329 * when a -width is specified (macro indicators must be
1330 * rewritten into real lengths).
1331 */
1332
1333 n = mdoc->last;
1334
1335 if (LIST_tag == n->norm->Bl.type &&
1336 NULL == n->norm->Bl.width) {
1337 if ( ! post_bl_block_tag(mdoc))
1338 return(0);
1339 } else if (NULL != n->norm->Bl.width) {
1340 if ( ! post_bl_block_width(mdoc))
1341 return(0);
1342 } else
1343 return(1);
1344
1345 assert(n->norm->Bl.width);
1346 return(1);
1347 }
1348
1349 static int
1350 post_bl_block_width(POST_ARGS)
1351 {
1352 size_t width;
1353 int i;
1354 enum mdoct tok;
1355 struct mdoc_node *n;
1356 char buf[NUMSIZ];
1357
1358 n = mdoc->last;
1359
1360 /*
1361 * Calculate the real width of a list from the -width string,
1362 * which may contain a macro (with a known default width), a
1363 * literal string, or a scaling width.
1364 *
1365 * If the value to -width is a macro, then we re-write it to be
1366 * the macro's width as set in share/tmac/mdoc/doc-common.
1367 */
1368
1369 if (0 == strcmp(n->norm->Bl.width, "Ds"))
1370 width = 6;
1371 else if (MDOC_MAX == (tok = mdoc_hash_find(n->norm->Bl.width)))
1372 return(1);
1373 else if (0 == (width = mdoc_macro2len(tok))) {
1374 mdoc_nmsg(mdoc, n, MANDOCERR_BADWIDTH);
1375 return(1);
1376 }
1377
1378 /* The value already exists: free and reallocate it. */
1379
1380 assert(n->args);
1381
1382 for (i = 0; i < (int)n->args->argc; i++)
1383 if (MDOC_Width == n->args->argv[i].arg)
1384 break;
1385
1386 assert(i < (int)n->args->argc);
1387
1388 snprintf(buf, NUMSIZ, "%zun", width);
1389 free(n->args->argv[i].value[0]);
1390 n->args->argv[i].value[0] = mandoc_strdup(buf);
1391
1392 /* Set our width! */
1393 n->norm->Bl.width = n->args->argv[i].value[0];
1394 return(1);
1395 }
1396
1397 static int
1398 post_bl_block_tag(POST_ARGS)
1399 {
1400 struct mdoc_node *n, *nn;
1401 size_t sz, ssz;
1402 int i;
1403 char buf[NUMSIZ];
1404
1405 /*
1406 * Calculate the -width for a `Bl -tag' list if it hasn't been
1407 * provided. Uses the first head macro. NOTE AGAIN: this is
1408 * ONLY if the -width argument has NOT been provided. See
1409 * post_bl_block_width() for converting the -width string.
1410 */
1411
1412 sz = 10;
1413 n = mdoc->last;
1414
1415 for (nn = n->body->child; nn; nn = nn->next) {
1416 if (MDOC_It != nn->tok)
1417 continue;
1418
1419 assert(MDOC_BLOCK == nn->type);
1420 nn = nn->head->child;
1421
1422 if (nn == NULL)
1423 break;
1424
1425 if (MDOC_TEXT == nn->type) {
1426 sz = strlen(nn->string) + 1;
1427 break;
1428 }
1429
1430 if (0 != (ssz = mdoc_macro2len(nn->tok)))
1431 sz = ssz;
1432
1433 break;
1434 }
1435
1436 /* Defaults to ten ens. */
1437
1438 snprintf(buf, NUMSIZ, "%zun", sz);
1439
1440 /*
1441 * We have to dynamically add this to the macro's argument list.
1442 * We're guaranteed that a MDOC_Width doesn't already exist.
1443 */
1444
1445 assert(n->args);
1446 i = (int)(n->args->argc)++;
1447
1448 n->args->argv = mandoc_realloc(n->args->argv,
1449 n->args->argc * sizeof(struct mdoc_argv));
1450
1451 n->args->argv[i].arg = MDOC_Width;
1452 n->args->argv[i].line = n->line;
1453 n->args->argv[i].pos = n->pos;
1454 n->args->argv[i].sz = 1;
1455 n->args->argv[i].value = mandoc_malloc(sizeof(char *));
1456 n->args->argv[i].value[0] = mandoc_strdup(buf);
1457
1458 /* Set our width! */
1459 n->norm->Bl.width = n->args->argv[i].value[0];
1460 return(1);
1461 }
1462
1463
1464 static int
1465 post_bl_head(POST_ARGS)
1466 {
1467 struct mdoc_node *np, *nn, *nnp;
1468 int i, j;
1469
1470 if (LIST_column != mdoc->last->norm->Bl.type)
1471 /* FIXME: this should be ERROR class... */
1472 return(hwarn_eq0(mdoc));
1473
1474 /*
1475 * Convert old-style lists, where the column width specifiers
1476 * trail as macro parameters, to the new-style ("normal-form")
1477 * lists where they're argument values following -column.
1478 */
1479
1480 /* First, disallow both types and allow normal-form. */
1481
1482 /*
1483 * TODO: technically, we can accept both and just merge the two
1484 * lists, but I'll leave that for another day.
1485 */
1486
1487 if (mdoc->last->norm->Bl.ncols && mdoc->last->nchild) {
1488 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_COLUMNS);
1489 return(0);
1490 } else if (NULL == mdoc->last->child)
1491 return(1);
1492
1493 np = mdoc->last->parent;
1494 assert(np->args);
1495
1496 for (j = 0; j < (int)np->args->argc; j++)
1497 if (MDOC_Column == np->args->argv[j].arg)
1498 break;
1499
1500 assert(j < (int)np->args->argc);
1501 assert(0 == np->args->argv[j].sz);
1502
1503 /*
1504 * Accomodate for new-style groff column syntax. Shuffle the
1505 * child nodes, all of which must be TEXT, as arguments for the
1506 * column field. Then, delete the head children.
1507 */
1508
1509 np->args->argv[j].sz = (size_t)mdoc->last->nchild;
1510 np->args->argv[j].value = mandoc_malloc
1511 ((size_t)mdoc->last->nchild * sizeof(char *));
1512
1513 mdoc->last->norm->Bl.ncols = np->args->argv[j].sz;
1514 mdoc->last->norm->Bl.cols = (const char **)np->args->argv[j].value;
1515
1516 for (i = 0, nn = mdoc->last->child; nn; i++) {
1517 np->args->argv[j].value[i] = nn->string;
1518 nn->string = NULL;
1519 nnp = nn;
1520 nn = nn->next;
1521 mdoc_node_delete(NULL, nnp);
1522 }
1523
1524 mdoc->last->nchild = 0;
1525 mdoc->last->child = NULL;
1526
1527 return(1);
1528 }
1529
1530 static int
1531 post_bl(POST_ARGS)
1532 {
1533 struct mdoc_node *n;
1534
1535 if (MDOC_HEAD == mdoc->last->type)
1536 return(post_bl_head(mdoc));
1537 if (MDOC_BLOCK == mdoc->last->type)
1538 return(post_bl_block(mdoc));
1539 if (MDOC_BODY != mdoc->last->type)
1540 return(1);
1541
1542 for (n = mdoc->last->child; n; n = n->next) {
1543 switch (n->tok) {
1544 case (MDOC_Lp):
1545 /* FALLTHROUGH */
1546 case (MDOC_Pp):
1547 mdoc_nmsg(mdoc, n, MANDOCERR_CHILD);
1548 /* FALLTHROUGH */
1549 case (MDOC_It):
1550 /* FALLTHROUGH */
1551 case (MDOC_Sm):
1552 continue;
1553 default:
1554 break;
1555 }
1556
1557 mdoc_nmsg(mdoc, n, MANDOCERR_SYNTCHILD);
1558 return(0);
1559 }
1560
1561 return(1);
1562 }
1563
1564 static int
1565 ebool(struct mdoc *mdoc)
1566 {
1567
1568 if (NULL == mdoc->last->child) {
1569 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_MACROEMPTY);
1570 mdoc_node_delete(mdoc, mdoc->last);
1571 return(1);
1572 }
1573 check_count(mdoc, MDOC_ELEM, CHECK_WARN, CHECK_EQ, 1);
1574
1575 assert(MDOC_TEXT == mdoc->last->child->type);
1576
1577 if (0 == strcmp(mdoc->last->child->string, "on"))
1578 return(1);
1579 if (0 == strcmp(mdoc->last->child->string, "off"))
1580 return(1);
1581
1582 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_BADBOOL);
1583 return(1);
1584 }
1585
1586 static int
1587 post_root(POST_ARGS)
1588 {
1589 int erc;
1590 struct mdoc_node *n;
1591
1592 erc = 0;
1593
1594 /* Check that we have a finished prologue. */
1595
1596 if ( ! (MDOC_PBODY & mdoc->flags)) {
1597 erc++;
1598 mdoc_nmsg(mdoc, mdoc->first, MANDOCERR_NODOCPROLOG);
1599 }
1600
1601 n = mdoc->first;
1602 assert(n);
1603
1604 /* Check that we begin with a proper `Sh'. */
1605
1606 if (NULL == n->child) {
1607 erc++;
1608 mdoc_nmsg(mdoc, n, MANDOCERR_NODOCBODY);
1609 } else if (MDOC_BLOCK != n->child->type ||
1610 MDOC_Sh != n->child->tok) {
1611 erc++;
1612 /* Can this be lifted? See rxdebug.1 for example. */
1613 mdoc_nmsg(mdoc, n, MANDOCERR_NODOCBODY);
1614 }
1615
1616 return(erc ? 0 : 1);
1617 }
1618
1619 static int
1620 post_st(POST_ARGS)
1621 {
1622 struct mdoc_node *ch;
1623 const char *p;
1624
1625 if (NULL == (ch = mdoc->last->child)) {
1626 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_MACROEMPTY);
1627 mdoc_node_delete(mdoc, mdoc->last);
1628 return(1);
1629 }
1630
1631 assert(MDOC_TEXT == ch->type);
1632
1633 if (NULL == (p = mdoc_a2st(ch->string))) {
1634 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_BADSTANDARD);
1635 mdoc_node_delete(mdoc, mdoc->last);
1636 } else {
1637 free(ch->string);
1638 ch->string = mandoc_strdup(p);
1639 }
1640
1641 return(1);
1642 }
1643
1644 static int
1645 post_rs(POST_ARGS)
1646 {
1647 struct mdoc_node *nn, *next, *prev;
1648 int i, j;
1649
1650 switch (mdoc->last->type) {
1651 case (MDOC_HEAD):
1652 check_count(mdoc, MDOC_HEAD, CHECK_WARN, CHECK_EQ, 0);
1653 return(1);
1654 case (MDOC_BODY):
1655 if (mdoc->last->child)
1656 break;
1657 check_count(mdoc, MDOC_BODY, CHECK_WARN, CHECK_GT, 0);
1658 return(1);
1659 default:
1660 return(1);
1661 }
1662
1663 /*
1664 * Make sure only certain types of nodes are allowed within the
1665 * the `Rs' body. Delete offending nodes and raise a warning.
1666 * Do this before re-ordering for the sake of clarity.
1667 */
1668
1669 next = NULL;
1670 for (nn = mdoc->last->child; nn; nn = next) {
1671 for (i = 0; i < RSORD_MAX; i++)
1672 if (nn->tok == rsord[i])
1673 break;
1674
1675 if (i < RSORD_MAX) {
1676 if (MDOC__J == rsord[i] || MDOC__B == rsord[i])
1677 mdoc->last->norm->Rs.quote_T++;
1678 next = nn->next;
1679 continue;
1680 }
1681
1682 next = nn->next;
1683 mdoc_nmsg(mdoc, nn, MANDOCERR_CHILD);
1684 mdoc_node_delete(mdoc, nn);
1685 }
1686
1687 /*
1688 * The full `Rs' block needs special handling to order the
1689 * sub-elements according to `rsord'. Pick through each element
1690 * and correctly order it. This is a insertion sort.
1691 */
1692
1693 next = NULL;
1694 for (nn = mdoc->last->child->next; nn; nn = next) {
1695 /* Determine order of `nn'. */
1696 for (i = 0; i < RSORD_MAX; i++)
1697 if (rsord[i] == nn->tok)
1698 break;
1699
1700 /*
1701 * Remove `nn' from the chain. This somewhat
1702 * repeats mdoc_node_unlink(), but since we're
1703 * just re-ordering, there's no need for the
1704 * full unlink process.
1705 */
1706
1707 if (NULL != (next = nn->next))
1708 next->prev = nn->prev;
1709
1710 if (NULL != (prev = nn->prev))
1711 prev->next = nn->next;
1712
1713 nn->prev = nn->next = NULL;
1714
1715 /*
1716 * Scan back until we reach a node that's
1717 * ordered before `nn'.
1718 */
1719
1720 for ( ; prev ; prev = prev->prev) {
1721 /* Determine order of `prev'. */
1722 for (j = 0; j < RSORD_MAX; j++)
1723 if (rsord[j] == prev->tok)
1724 break;
1725
1726 if (j <= i)
1727 break;
1728 }
1729
1730 /*
1731 * Set `nn' back into its correct place in front
1732 * of the `prev' node.
1733 */
1734
1735 nn->prev = prev;
1736
1737 if (prev) {
1738 if (prev->next)
1739 prev->next->prev = nn;
1740 nn->next = prev->next;
1741 prev->next = nn;
1742 } else {
1743 mdoc->last->child->prev = nn;
1744 nn->next = mdoc->last->child;
1745 mdoc->last->child = nn;
1746 }
1747 }
1748
1749 return(1);
1750 }
1751
1752 static int
1753 post_ns(POST_ARGS)
1754 {
1755
1756 if (MDOC_LINE & mdoc->last->flags)
1757 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_IGNNS);
1758 return(1);
1759 }
1760
1761 static int
1762 post_sh(POST_ARGS)
1763 {
1764
1765 if (MDOC_HEAD == mdoc->last->type)
1766 return(post_sh_head(mdoc));
1767 if (MDOC_BODY == mdoc->last->type)
1768 return(post_sh_body(mdoc));
1769
1770 return(1);
1771 }
1772
1773 static int
1774 post_sh_body(POST_ARGS)
1775 {
1776 struct mdoc_node *n;
1777
1778 if (SEC_NAME != mdoc->lastsec)
1779 return(1);
1780
1781 /*
1782 * Warn if the NAME section doesn't contain the `Nm' and `Nd'
1783 * macros (can have multiple `Nm' and one `Nd'). Note that the
1784 * children of the BODY declaration can also be "text".
1785 */
1786
1787 if (NULL == (n = mdoc->last->child)) {
1788 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_BADNAMESEC);
1789 return(1);
1790 }
1791
1792 for ( ; n && n->next; n = n->next) {
1793 if (MDOC_ELEM == n->type && MDOC_Nm == n->tok)
1794 continue;
1795 if (MDOC_TEXT == n->type)
1796 continue;
1797 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_BADNAMESEC);
1798 }
1799
1800 assert(n);
1801 if (MDOC_BLOCK == n->type && MDOC_Nd == n->tok)
1802 return(1);
1803
1804 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_BADNAMESEC);
1805 return(1);
1806 }
1807
1808 static int
1809 post_sh_head(POST_ARGS)
1810 {
1811 char buf[BUFSIZ];
1812 enum mdoc_sec sec;
1813
1814 /*
1815 * Process a new section. Sections are either "named" or
1816 * "custom". Custom sections are user-defined, while named ones
1817 * follow a conventional order and may only appear in certain
1818 * manual sections.
1819 */
1820
1821 if ( ! concat(mdoc, buf, mdoc->last->child, BUFSIZ))
1822 return(0);
1823
1824 sec = mdoc_str2sec(buf);
1825
1826 /* The NAME should be first. */
1827
1828 if (SEC_NAME != sec && SEC_NONE == mdoc->lastnamed)
1829 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_NAMESECFIRST);
1830
1831 /* The SYNOPSIS gets special attention in other areas. */
1832
1833 if (SEC_SYNOPSIS == sec)
1834 mdoc->flags |= MDOC_SYNOPSIS;
1835 else
1836 mdoc->flags &= ~MDOC_SYNOPSIS;
1837
1838 /* Mark our last section. */
1839
1840 mdoc->lastsec = sec;
1841
1842 /* We don't care about custom sections after this. */
1843
1844 if (SEC_CUSTOM == sec)
1845 return(1);
1846
1847 /*
1848 * Check whether our non-custom section is being repeated or is
1849 * out of order.
1850 */
1851
1852 if (sec == mdoc->lastnamed)
1853 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_SECREP);
1854
1855 if (sec < mdoc->lastnamed)
1856 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_SECOOO);
1857
1858 /* Mark the last named section. */
1859
1860 mdoc->lastnamed = sec;
1861
1862 /* Check particular section/manual conventions. */
1863
1864 assert(mdoc->meta.msec);
1865
1866 switch (sec) {
1867 case (SEC_RETURN_VALUES):
1868 /* FALLTHROUGH */
1869 case (SEC_ERRORS):
1870 /* FALLTHROUGH */
1871 case (SEC_LIBRARY):
1872 if (*mdoc->meta.msec == '2')
1873 break;
1874 if (*mdoc->meta.msec == '3')
1875 break;
1876 if (*mdoc->meta.msec == '9')
1877 break;
1878 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_SECMSEC);
1879 break;
1880 default:
1881 break;
1882 }
1883
1884 return(1);
1885 }
1886
1887 static int
1888 post_ignpar(POST_ARGS)
1889 {
1890 struct mdoc_node *np;
1891
1892 if (MDOC_BODY != mdoc->last->type)
1893 return(1);
1894
1895 if (NULL != (np = mdoc->last->child))
1896 if (MDOC_Pp == np->tok || MDOC_Lp == np->tok) {
1897 mdoc_nmsg(mdoc, np, MANDOCERR_IGNPAR);
1898 mdoc_node_delete(mdoc, np);
1899 }
1900
1901 if (NULL != (np = mdoc->last->last))
1902 if (MDOC_Pp == np->tok || MDOC_Lp == np->tok) {
1903 mdoc_nmsg(mdoc, np, MANDOCERR_IGNPAR);
1904 mdoc_node_delete(mdoc, np);
1905 }
1906
1907 return(1);
1908 }
1909
1910 static int
1911 pre_par(PRE_ARGS)
1912 {
1913
1914 if (NULL == mdoc->last)
1915 return(1);
1916 if (MDOC_ELEM != n->type && MDOC_BLOCK != n->type)
1917 return(1);
1918
1919 /*
1920 * Don't allow prior `Lp' or `Pp' prior to a paragraph-type
1921 * block: `Lp', `Pp', or non-compact `Bd' or `Bl'.
1922 */
1923
1924 if (MDOC_Pp != mdoc->last->tok && MDOC_Lp != mdoc->last->tok)
1925 return(1);
1926 if (MDOC_Bl == n->tok && n->norm->Bl.comp)
1927 return(1);
1928 if (MDOC_Bd == n->tok && n->norm->Bd.comp)
1929 return(1);
1930 if (MDOC_It == n->tok && n->parent->norm->Bl.comp)
1931 return(1);
1932
1933 mdoc_nmsg(mdoc, mdoc->last, MANDOCERR_IGNPAR);
1934 mdoc_node_delete(mdoc, mdoc->last);
1935 return(1);
1936 }
1937
1938 static int
1939 pre_literal(PRE_ARGS)
1940 {
1941
1942 if (MDOC_BODY != n->type)
1943 return(1);
1944
1945 /*
1946 * The `Dl' (note "el" not "one") and `Bd -literal' and `Bd
1947 * -unfilled' macros set MDOC_LITERAL on entrance to the body.
1948 */
1949
1950 switch (n->tok) {
1951 case (MDOC_Dl):
1952 mdoc->flags |= MDOC_LITERAL;
1953 break;
1954 case (MDOC_Bd):
1955 if (DISP_literal == n->norm->Bd.type)
1956 mdoc->flags |= MDOC_LITERAL;
1957 if (DISP_unfilled == n->norm->Bd.type)
1958 mdoc->flags |= MDOC_LITERAL;
1959 break;
1960 default:
1961 abort();
1962 /* NOTREACHED */
1963 }
1964
1965 return(1);
1966 }
1967
1968 static int
1969 post_dd(POST_ARGS)
1970 {
1971 char buf[DATESIZE];
1972 struct mdoc_node *n;
1973
1974 if (mdoc->meta.date)
1975 free(mdoc->meta.date);
1976
1977 n = mdoc->last;
1978 if (NULL == n->child || '\0' == n->child->string[0]) {
1979 mdoc->meta.date = mandoc_normdate(NULL,
1980 mdoc->msg, mdoc->data, n->line, n->pos);
1981 return(1);
1982 }
1983
1984 if ( ! concat(mdoc, buf, n->child, DATESIZE))
1985 return(0);
1986
1987 mdoc->meta.date = mandoc_normdate(buf,
1988 mdoc->msg, mdoc->data, n->line, n->pos);
1989
1990 return(1);
1991 }
1992
1993 static int
1994 post_dt(POST_ARGS)
1995 {
1996 struct mdoc_node *nn, *n;
1997 const char *cp;
1998 char *p;
1999
2000 n = mdoc->last;
2001
2002 if (mdoc->meta.title)
2003 free(mdoc->meta.title);
2004 if (mdoc->meta.vol)
2005 free(mdoc->meta.vol);
2006 if (mdoc->meta.arch)
2007 free(mdoc->meta.arch);
2008
2009 mdoc->meta.title = mdoc->meta.vol = mdoc->meta.arch = NULL;
2010
2011 /* First make all characters uppercase. */
2012
2013 if (NULL != (nn = n->child))
2014 for (p = nn->string; *p; p++) {
2015 if (toupper((u_char)*p) == *p)
2016 continue;
2017
2018 /*
2019 * FIXME: don't be lazy: have this make all
2020 * characters be uppercase and just warn once.
2021 */
2022 mdoc_nmsg(mdoc, nn, MANDOCERR_UPPERCASE);
2023 break;
2024 }
2025
2026 /* Handles: `.Dt'
2027 * --> title = unknown, volume = local, msec = 0, arch = NULL
2028 */
2029
2030 if (NULL == (nn = n->child)) {
2031 /* XXX: make these macro values. */
2032 /* FIXME: warn about missing values. */
2033 mdoc->meta.title = mandoc_strdup("UNKNOWN");
2034 mdoc->meta.vol = mandoc_strdup("LOCAL");
2035 mdoc->meta.msec = mandoc_strdup("1");
2036 return(1);
2037 }
2038
2039 /* Handles: `.Dt TITLE'
2040 * --> title = TITLE, volume = local, msec = 0, arch = NULL
2041 */
2042
2043 mdoc->meta.title = mandoc_strdup
2044 ('\0' == nn->string[0] ? "UNKNOWN" : nn->string);
2045
2046 if (NULL == (nn = nn->next)) {
2047 /* FIXME: warn about missing msec. */
2048 /* XXX: make this a macro value. */
2049 mdoc->meta.vol = mandoc_strdup("LOCAL");
2050 mdoc->meta.msec = mandoc_strdup("1");
2051 return(1);
2052 }
2053
2054 /* Handles: `.Dt TITLE SEC'
2055 * --> title = TITLE, volume = SEC is msec ?
2056 * format(msec) : SEC,
2057 * msec = SEC is msec ? atoi(msec) : 0,
2058 * arch = NULL
2059 */
2060
2061 cp = mdoc_a2msec(nn->string);
2062 if (cp) {
2063 mdoc->meta.vol = mandoc_strdup(cp);
2064 mdoc->meta.msec = mandoc_strdup(nn->string);
2065 } else {
2066 mdoc_nmsg(mdoc, n, MANDOCERR_BADMSEC);
2067 mdoc->meta.vol = mandoc_strdup(nn->string);
2068 mdoc->meta.msec = mandoc_strdup(nn->string);
2069 }
2070
2071 if (NULL == (nn = nn->next))
2072 return(1);
2073
2074 /* Handles: `.Dt TITLE SEC VOL'
2075 * --> title = TITLE, volume = VOL is vol ?
2076 * format(VOL) :
2077 * VOL is arch ? format(arch) :
2078 * VOL
2079 */
2080
2081 cp = mdoc_a2vol(nn->string);
2082 if (cp) {
2083 free(mdoc->meta.vol);
2084 mdoc->meta.vol = mandoc_strdup(cp);
2085 } else {
2086 /* FIXME: warn about bad arch. */
2087 cp = mdoc_a2arch(nn->string);
2088 if (NULL == cp) {
2089 free(mdoc->meta.vol);
2090 mdoc->meta.vol = mandoc_strdup(nn->string);
2091 } else
2092 mdoc->meta.arch = mandoc_strdup(cp);
2093 }
2094
2095 /* Ignore any subsequent parameters... */
2096 /* FIXME: warn about subsequent parameters. */
2097
2098 return(1);
2099 }
2100
2101 static int
2102 post_prol(POST_ARGS)
2103 {
2104 /*
2105 * Remove prologue macros from the document after they're
2106 * processed. The final document uses mdoc_meta for these
2107 * values and discards the originals.
2108 */
2109
2110 mdoc_node_delete(mdoc, mdoc->last);
2111 if (mdoc->meta.title && mdoc->meta.date && mdoc->meta.os)
2112 mdoc->flags |= MDOC_PBODY;
2113
2114 return(1);
2115 }
2116
2117 static int
2118 post_bx(POST_ARGS)
2119 {
2120 struct mdoc_node *n;
2121
2122 /*
2123 * Make `Bx's second argument always start with an uppercase
2124 * letter. Groff checks if it's an "accepted" term, but we just
2125 * uppercase blindly.
2126 */
2127
2128 n = mdoc->last->child;
2129 if (n && NULL != (n = n->next))
2130 *n->string = (char)toupper
2131 ((unsigned char)*n->string);
2132
2133 return(1);
2134 }
2135
2136 static int
2137 post_os(POST_ARGS)
2138 {
2139 struct mdoc_node *n;
2140 char buf[BUFSIZ];
2141 #ifndef OSNAME
2142 struct utsname utsname;
2143 #endif
2144
2145 n = mdoc->last;
2146
2147 /*
2148 * Set the operating system by way of the `Os' macro. Note that
2149 * if an argument isn't provided and -DOSNAME="\"foo\"" is
2150 * provided during compilation, this value will be used instead
2151 * of filling in "sysname release" from uname().
2152 */
2153
2154 if (mdoc->meta.os)
2155 free(mdoc->meta.os);
2156
2157 if ( ! concat(mdoc, buf, n->child, BUFSIZ))
2158 return(0);
2159
2160 /* XXX: yes, these can all be dynamically-adjusted buffers, but
2161 * it's really not worth the extra hackery.
2162 */
2163
2164 if ('\0' == buf[0]) {
2165 #ifdef OSNAME
2166 if (strlcat(buf, OSNAME, BUFSIZ) >= BUFSIZ) {
2167 mdoc_nmsg(mdoc, n, MANDOCERR_MEM);
2168 return(0);
2169 }
2170 #else /*!OSNAME */
2171 if (uname(&utsname)) {
2172 mdoc_nmsg(mdoc, n, MANDOCERR_UNAME);
2173 mdoc->meta.os = mandoc_strdup("UNKNOWN");
2174 return(post_prol(mdoc));
2175 }
2176
2177 if (strlcat(buf, utsname.sysname, BUFSIZ) >= BUFSIZ) {
2178 mdoc_nmsg(mdoc, n, MANDOCERR_MEM);
2179 return(0);
2180 }
2181 if (strlcat(buf, " ", BUFSIZ) >= BUFSIZ) {
2182 mdoc_nmsg(mdoc, n, MANDOCERR_MEM);
2183 return(0);
2184 }
2185 if (strlcat(buf, utsname.release, BUFSIZ) >= BUFSIZ) {
2186 mdoc_nmsg(mdoc, n, MANDOCERR_MEM);
2187 return(0);
2188 }
2189 #endif /*!OSNAME*/
2190 }
2191
2192 mdoc->meta.os = mandoc_strdup(buf);
2193 return(1);
2194 }
2195
2196 static int
2197 post_std(POST_ARGS)
2198 {
2199 struct mdoc_node *nn, *n;
2200
2201 n = mdoc->last;
2202
2203 /*
2204 * Macros accepting `-std' as an argument have the name of the
2205 * current document (`Nm') filled in as the argument if it's not
2206 * provided.
2207 */
2208
2209 if (n->child)
2210 return(1);
2211
2212 if (NULL == mdoc->meta.name)
2213 return(1);
2214
2215 nn = n;
2216 mdoc->next = MDOC_NEXT_CHILD;
2217
2218 if ( ! mdoc_word_alloc(mdoc, n->line, n->pos, mdoc->meta.name))
2219 return(0);
2220
2221 mdoc->last = nn;
2222 return(1);
2223 }
2224
2225 static int
2226 concat(struct mdoc *m, char *p, const struct mdoc_node *n, size_t sz)
2227 {
2228
2229 p[0] = '\0';
2230
2231 /*
2232 * Concatenate sibling nodes together. All siblings must be of
2233 * type MDOC_TEXT or an assertion is raised. Concatenation is
2234 * separated by a single whitespace. Returns 0 on fatal (string
2235 * overrun) error.
2236 */
2237
2238 for ( ; n; n = n->next) {
2239 assert(MDOC_TEXT == n->type);
2240
2241 if (strlcat(p, n->string, sz) >= sz) {
2242 mdoc_nmsg(m, n, MANDOCERR_MEM);
2243 return(0);
2244 }
2245
2246 if (NULL == n->next)
2247 continue;
2248
2249 if (strlcat(p, " ", sz) >= sz) {
2250 mdoc_nmsg(m, n, MANDOCERR_MEM);
2251 return(0);
2252 }
2253 }
2254
2255 return(1);
2256 }
2257
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