Annotation of mandoc/mdoc_validate.c, Revision 1.31
1.31 ! kristaps 1: /* $Id: mdoc_validate.c,v 1.30 2009/07/12 20:30:35 kristaps Exp $ */
1.1 kristaps 2: /*
1.7 kristaps 3: * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
1.1 kristaps 4: *
5: * Permission to use, copy, modify, and distribute this software for any
1.5 kristaps 6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 8: *
1.5 kristaps 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.
1.1 kristaps 16: */
17: #include <sys/types.h>
18:
19: #include <assert.h>
20: #include <ctype.h>
21: #include <stdarg.h>
22: #include <stdlib.h>
1.2 kristaps 23: #include <string.h>
1.1 kristaps 24:
25: #include "libmdoc.h"
1.18 kristaps 26: #include "libmandoc.h"
1.1 kristaps 27:
28: /* FIXME: .Bl -diag can't have non-text children in HEAD. */
29: /* TODO: ignoring Pp (it's superfluous in some invocations). */
30:
31: #define PRE_ARGS struct mdoc *mdoc, const struct mdoc_node *n
32: #define POST_ARGS struct mdoc *mdoc
33:
34:
35: typedef int (*v_pre)(PRE_ARGS);
36: typedef int (*v_post)(POST_ARGS);
37:
38: struct valids {
39: v_pre *pre;
40: v_post *post;
41: };
42:
43: static int check_parent(PRE_ARGS, int, enum mdoc_type);
44: static int check_msec(PRE_ARGS, ...);
45: static int check_sec(PRE_ARGS, ...);
46: static int check_stdarg(PRE_ARGS);
47: static int check_text(struct mdoc *, int, int, const char *);
48: static int check_argv(struct mdoc *,
49: const struct mdoc_node *,
50: const struct mdoc_argv *);
51: static int check_args(struct mdoc *,
52: const struct mdoc_node *);
53: static int err_child_lt(struct mdoc *, const char *, int);
54: static int warn_child_lt(struct mdoc *, const char *, int);
55: static int err_child_gt(struct mdoc *, const char *, int);
56: static int warn_child_gt(struct mdoc *, const char *, int);
57: static int err_child_eq(struct mdoc *, const char *, int);
58: static int warn_child_eq(struct mdoc *, const char *, int);
1.4 kristaps 59: static int warn_print(struct mdoc *, int, int);
1.2 kristaps 60: static int warn_count(struct mdoc *, const char *,
1.1 kristaps 61: int, const char *, int);
1.2 kristaps 62: static int err_count(struct mdoc *, const char *,
1.1 kristaps 63: int, const char *, int);
64: static int pre_an(PRE_ARGS);
65: static int pre_bd(PRE_ARGS);
66: static int pre_bl(PRE_ARGS);
67: static int pre_cd(PRE_ARGS);
68: static int pre_dd(PRE_ARGS);
69: static int pre_display(PRE_ARGS);
70: static int pre_dt(PRE_ARGS);
71: static int pre_er(PRE_ARGS);
72: static int pre_ex(PRE_ARGS);
73: static int pre_fd(PRE_ARGS);
74: static int pre_it(PRE_ARGS);
75: static int pre_lb(PRE_ARGS);
76: static int pre_os(PRE_ARGS);
77: static int pre_rv(PRE_ARGS);
78: static int pre_sh(PRE_ARGS);
79: static int pre_ss(PRE_ARGS);
80: static int herr_ge1(POST_ARGS);
81: static int hwarn_le1(POST_ARGS);
82: static int herr_eq0(POST_ARGS);
83: static int eerr_eq0(POST_ARGS);
84: static int eerr_le2(POST_ARGS);
85: static int eerr_eq1(POST_ARGS);
86: static int eerr_ge1(POST_ARGS);
87: static int ewarn_eq0(POST_ARGS);
88: static int bwarn_ge1(POST_ARGS);
1.27 kristaps 89: static int berr_ge1(POST_ARGS);
1.1 kristaps 90: static int hwarn_eq1(POST_ARGS);
91: static int ewarn_ge1(POST_ARGS);
92: static int ebool(POST_ARGS);
1.31 ! kristaps 93:
1.1 kristaps 94: static int post_an(POST_ARGS);
95: static int post_args(POST_ARGS);
96: static int post_at(POST_ARGS);
97: static int post_bf(POST_ARGS);
98: static int post_bl(POST_ARGS);
1.14 kristaps 99: static int post_bl_head(POST_ARGS);
1.1 kristaps 100: static int post_it(POST_ARGS);
1.31 ! kristaps 101: static int post_lb(POST_ARGS);
1.1 kristaps 102: static int post_nm(POST_ARGS);
103: static int post_root(POST_ARGS);
104: static int post_sh(POST_ARGS);
105: static int post_sh_body(POST_ARGS);
106: static int post_sh_head(POST_ARGS);
107: static int post_st(POST_ARGS);
108:
109: static v_pre pres_an[] = { pre_an, NULL };
110: static v_pre pres_bd[] = { pre_display, pre_bd, NULL };
111: static v_pre pres_bl[] = { pre_bl, NULL };
112: static v_pre pres_cd[] = { pre_cd, NULL };
1.12 kristaps 113: static v_pre pres_dd[] = { pre_dd, NULL };
1.1 kristaps 114: static v_pre pres_d1[] = { pre_display, NULL };
1.12 kristaps 115: static v_pre pres_dt[] = { pre_dt, NULL };
1.1 kristaps 116: static v_pre pres_er[] = { pre_er, NULL };
117: static v_pre pres_ex[] = { pre_ex, NULL };
118: static v_pre pres_fd[] = { pre_fd, NULL };
119: static v_pre pres_it[] = { pre_it, NULL };
120: static v_pre pres_lb[] = { pre_lb, NULL };
1.12 kristaps 121: static v_pre pres_os[] = { pre_os, NULL };
1.1 kristaps 122: static v_pre pres_rv[] = { pre_rv, NULL };
123: static v_pre pres_sh[] = { pre_sh, NULL };
124: static v_pre pres_ss[] = { pre_ss, NULL };
125: static v_post posts_bool[] = { eerr_eq1, ebool, NULL };
126: static v_post posts_bd[] = { herr_eq0, bwarn_ge1, NULL };
127: static v_post posts_text[] = { eerr_ge1, NULL };
128: static v_post posts_wtext[] = { ewarn_ge1, NULL };
129: static v_post posts_notext[] = { eerr_eq0, NULL };
130: static v_post posts_wline[] = { bwarn_ge1, herr_eq0, NULL };
131: static v_post posts_sh[] = { herr_ge1, bwarn_ge1, post_sh, NULL };
1.14 kristaps 132: static v_post posts_bl[] = { bwarn_ge1, post_bl, NULL };
1.1 kristaps 133: static v_post posts_it[] = { post_it, NULL };
1.25 kristaps 134: static v_post posts_in[] = { eerr_eq1, NULL };
1.1 kristaps 135: static v_post posts_ss[] = { herr_ge1, NULL };
1.27 kristaps 136: static v_post posts_nd[] = { berr_ge1, NULL };
1.1 kristaps 137: static v_post posts_pf[] = { eerr_eq1, NULL };
1.31 ! kristaps 138: static v_post posts_lb[] = { eerr_eq1, post_lb, NULL };
1.1 kristaps 139: static v_post posts_st[] = { eerr_eq1, post_st, NULL };
140: static v_post posts_pp[] = { ewarn_eq0, NULL };
141: static v_post posts_ex[] = { eerr_eq0, post_args, NULL };
142: static v_post posts_rv[] = { eerr_eq0, post_args, NULL };
143: static v_post posts_an[] = { post_an, NULL };
144: static v_post posts_at[] = { post_at, NULL };
145: static v_post posts_xr[] = { eerr_ge1, eerr_le2, NULL };
146: static v_post posts_nm[] = { post_nm, NULL };
147: static v_post posts_bf[] = { hwarn_le1, post_bf, NULL };
148: static v_post posts_fo[] = { hwarn_eq1, bwarn_ge1, NULL };
149:
150: const struct valids mdoc_valids[MDOC_MAX] = {
1.10 kristaps 151: { NULL, NULL }, /* Ap */
1.1 kristaps 152: { pres_dd, posts_text }, /* Dd */
153: { pres_dt, NULL }, /* Dt */
154: { pres_os, NULL }, /* Os */
155: { pres_sh, posts_sh }, /* Sh */
156: { pres_ss, posts_ss }, /* Ss */
157: { NULL, posts_pp }, /* Pp */
158: { pres_d1, posts_wline }, /* D1 */
159: { pres_d1, posts_wline }, /* Dl */
160: { pres_bd, posts_bd }, /* Bd */
161: { NULL, NULL }, /* Ed */
162: { pres_bl, posts_bl }, /* Bl */
163: { NULL, NULL }, /* El */
164: { pres_it, posts_it }, /* It */
165: { NULL, posts_text }, /* Ad */
166: { pres_an, posts_an }, /* An */
167: { NULL, NULL }, /* Ar */
168: { pres_cd, posts_text }, /* Cd */
169: { NULL, NULL }, /* Cm */
170: { NULL, NULL }, /* Dv */
171: { pres_er, posts_text }, /* Er */
172: { NULL, NULL }, /* Ev */
173: { pres_ex, posts_ex }, /* Ex */
174: { NULL, NULL }, /* Fa */
175: { pres_fd, posts_wtext }, /* Fd */
176: { NULL, NULL }, /* Fl */
177: { NULL, posts_text }, /* Fn */
178: { NULL, posts_wtext }, /* Ft */
179: { NULL, posts_text }, /* Ic */
180: { NULL, posts_in }, /* In */
181: { NULL, NULL }, /* Li */
1.27 kristaps 182: { NULL, posts_nd }, /* Nd */
1.1 kristaps 183: { NULL, posts_nm }, /* Nm */
184: { NULL, posts_wline }, /* Op */
185: { NULL, NULL }, /* Ot */
186: { NULL, NULL }, /* Pa */
187: { pres_rv, posts_rv }, /* Rv */
188: { NULL, posts_st }, /* St */
189: { NULL, NULL }, /* Va */
190: { NULL, posts_text }, /* Vt */
191: { NULL, posts_xr }, /* Xr */
192: { NULL, posts_text }, /* %A */
193: { NULL, posts_text }, /* %B */
194: { NULL, posts_text }, /* %D */
195: { NULL, posts_text }, /* %I */
196: { NULL, posts_text }, /* %J */
197: { NULL, posts_text }, /* %N */
198: { NULL, posts_text }, /* %O */
199: { NULL, posts_text }, /* %P */
200: { NULL, posts_text }, /* %R */
201: { NULL, posts_text }, /* %T */
202: { NULL, posts_text }, /* %V */
203: { NULL, NULL }, /* Ac */
204: { NULL, NULL }, /* Ao */
205: { NULL, posts_wline }, /* Aq */
206: { NULL, posts_at }, /* At */
207: { NULL, NULL }, /* Bc */
208: { NULL, posts_bf }, /* Bf */
209: { NULL, NULL }, /* Bo */
210: { NULL, posts_wline }, /* Bq */
211: { NULL, NULL }, /* Bsx */
212: { NULL, NULL }, /* Bx */
213: { NULL, posts_bool }, /* Db */
214: { NULL, NULL }, /* Dc */
215: { NULL, NULL }, /* Do */
216: { NULL, posts_wline }, /* Dq */
217: { NULL, NULL }, /* Ec */
218: { NULL, NULL }, /* Ef */
219: { NULL, NULL }, /* Em */
220: { NULL, NULL }, /* Eo */
221: { NULL, NULL }, /* Fx */
222: { NULL, posts_text }, /* Ms */
223: { NULL, posts_notext }, /* No */
224: { NULL, posts_notext }, /* Ns */
225: { NULL, NULL }, /* Nx */
226: { NULL, NULL }, /* Ox */
227: { NULL, NULL }, /* Pc */
228: { NULL, posts_pf }, /* Pf */
229: { NULL, NULL }, /* Po */
230: { NULL, posts_wline }, /* Pq */
231: { NULL, NULL }, /* Qc */
232: { NULL, posts_wline }, /* Ql */
233: { NULL, NULL }, /* Qo */
234: { NULL, posts_wline }, /* Qq */
235: { NULL, NULL }, /* Re */
236: { NULL, posts_wline }, /* Rs */
237: { NULL, NULL }, /* Sc */
238: { NULL, NULL }, /* So */
239: { NULL, posts_wline }, /* Sq */
240: { NULL, posts_bool }, /* Sm */
241: { NULL, posts_text }, /* Sx */
242: { NULL, posts_text }, /* Sy */
243: { NULL, posts_text }, /* Tn */
244: { NULL, NULL }, /* Ux */
245: { NULL, NULL }, /* Xc */
246: { NULL, NULL }, /* Xo */
247: { NULL, posts_fo }, /* Fo */
248: { NULL, NULL }, /* Fc */
249: { NULL, NULL }, /* Oo */
250: { NULL, NULL }, /* Oc */
251: { NULL, posts_wline }, /* Bk */
252: { NULL, NULL }, /* Ek */
253: { NULL, posts_notext }, /* Bt */
254: { NULL, NULL }, /* Hf */
255: { NULL, NULL }, /* Fr */
256: { NULL, posts_notext }, /* Ud */
257: { pres_lb, posts_lb }, /* Lb */
258: { NULL, posts_pp }, /* Lp */
1.9 kristaps 259: { NULL, NULL }, /* Lk */
1.1 kristaps 260: { NULL, posts_text }, /* Mt */
261: { NULL, posts_wline }, /* Brq */
262: { NULL, NULL }, /* Bro */
263: { NULL, NULL }, /* Brc */
264: { NULL, posts_text }, /* %C */
265: { NULL, NULL }, /* Es */
266: { NULL, NULL }, /* En */
267: { NULL, NULL }, /* Dx */
268: { NULL, posts_text }, /* %Q */
269: };
270:
271:
1.2 kristaps 272: #ifdef __linux__
273: extern size_t strlcat(char *, const char *, size_t);
274: #endif
275:
276:
1.1 kristaps 277: int
278: mdoc_valid_pre(struct mdoc *mdoc,
279: const struct mdoc_node *n)
280: {
281: v_pre *p;
282: int line, pos;
283: const char *tp;
284:
285: if (MDOC_TEXT == n->type) {
286: tp = n->string;
287: line = n->line;
288: pos = n->pos;
289: return(check_text(mdoc, line, pos, tp));
290: }
291:
292: if ( ! check_args(mdoc, n))
293: return(0);
294: if (NULL == mdoc_valids[n->tok].pre)
295: return(1);
296: for (p = mdoc_valids[n->tok].pre; *p; p++)
297: if ( ! (*p)(mdoc, n))
298: return(0);
299: return(1);
300: }
301:
302:
303: int
304: mdoc_valid_post(struct mdoc *mdoc)
305: {
306: v_post *p;
307:
308: /*
309: * This check occurs after the macro's children have been filled
310: * in: postfix validation. Since this happens when we're
311: * rewinding the scope tree, it's possible to have multiple
312: * invocations (as by design, for now), we set bit MDOC_VALID to
313: * indicate that we've validated.
314: */
315:
316: if (MDOC_VALID & mdoc->last->flags)
317: return(1);
318: mdoc->last->flags |= MDOC_VALID;
319:
320: if (MDOC_TEXT == mdoc->last->type)
321: return(1);
322: if (MDOC_ROOT == mdoc->last->type)
323: return(post_root(mdoc));
324:
325: if (NULL == mdoc_valids[mdoc->last->tok].post)
326: return(1);
327: for (p = mdoc_valids[mdoc->last->tok].post; *p; p++)
328: if ( ! (*p)(mdoc))
329: return(0);
330:
331: return(1);
332: }
333:
334:
335: static int
1.4 kristaps 336: warn_print(struct mdoc *m, int ln, int pos)
337: {
1.21 kristaps 338:
1.23 kristaps 339: if (MDOC_IGN_CHARS & m->pflags)
340: return(mdoc_pwarn(m, ln, pos, EPRINT));
341: return(mdoc_perr(m, ln, pos, EPRINT));
1.4 kristaps 342: }
343:
1.1 kristaps 344:
345: static inline int
346: warn_count(struct mdoc *m, const char *k,
347: int want, const char *v, int has)
348: {
349:
1.23 kristaps 350: return(mdoc_vwarn(m, m->last->line, m->last->pos,
351: "suggests %s %s %d (has %d)", v, k, want, has));
1.1 kristaps 352: }
353:
354:
355: static inline int
356: err_count(struct mdoc *m, const char *k,
357: int want, const char *v, int has)
358: {
359:
1.23 kristaps 360: return(mdoc_verr(m, m->last->line, m->last->pos,
1.1 kristaps 361: "requires %s %s %d (has %d)", v, k, want, has));
362: }
363:
364:
365: /*
366: * Build these up with macros because they're basically the same check
367: * for different inequalities. Yes, this could be done with functions,
368: * but this is reasonable for now.
369: */
370:
371: #define CHECK_CHILD_DEFN(lvl, name, ineq) \
372: static int \
373: lvl##_child_##name(struct mdoc *mdoc, const char *p, int sz) \
374: { \
1.16 kristaps 375: if (mdoc->last->nchild ineq sz) \
1.1 kristaps 376: return(1); \
1.16 kristaps 377: return(lvl##_count(mdoc, #ineq, sz, p, mdoc->last->nchild)); \
1.1 kristaps 378: }
379:
380: #define CHECK_BODY_DEFN(name, lvl, func, num) \
381: static int \
382: b##lvl##_##name(POST_ARGS) \
383: { \
384: if (MDOC_BODY != mdoc->last->type) \
385: return(1); \
386: return(func(mdoc, "multi-line arguments", (num))); \
387: }
388:
389: #define CHECK_ELEM_DEFN(name, lvl, func, num) \
390: static int \
391: e##lvl##_##name(POST_ARGS) \
392: { \
393: assert(MDOC_ELEM == mdoc->last->type); \
394: return(func(mdoc, "line arguments", (num))); \
395: }
396:
397: #define CHECK_HEAD_DEFN(name, lvl, func, num) \
398: static int \
399: h##lvl##_##name(POST_ARGS) \
400: { \
401: if (MDOC_HEAD != mdoc->last->type) \
402: return(1); \
403: return(func(mdoc, "line arguments", (num))); \
404: }
405:
406:
407: CHECK_CHILD_DEFN(warn, gt, >) /* warn_child_gt() */
408: CHECK_CHILD_DEFN(err, gt, >) /* err_child_gt() */
409: CHECK_CHILD_DEFN(warn, eq, ==) /* warn_child_eq() */
410: CHECK_CHILD_DEFN(err, eq, ==) /* err_child_eq() */
411: CHECK_CHILD_DEFN(err, lt, <) /* err_child_lt() */
412: CHECK_CHILD_DEFN(warn, lt, <) /* warn_child_lt() */
413: CHECK_BODY_DEFN(ge1, warn, warn_child_gt, 0) /* bwarn_ge1() */
1.27 kristaps 414: CHECK_BODY_DEFN(ge1, err, err_child_gt, 0) /* berr_ge1() */
1.1 kristaps 415: CHECK_ELEM_DEFN(eq0, warn, warn_child_eq, 0) /* ewarn_eq0() */
416: CHECK_ELEM_DEFN(ge1, warn, warn_child_gt, 0) /* ewarn_gt1() */
417: CHECK_ELEM_DEFN(eq1, err, err_child_eq, 1) /* eerr_eq1() */
418: CHECK_ELEM_DEFN(le2, err, err_child_lt, 3) /* eerr_le2() */
419: CHECK_ELEM_DEFN(eq0, err, err_child_eq, 0) /* eerr_eq0() */
420: CHECK_ELEM_DEFN(ge1, err, err_child_gt, 0) /* eerr_ge1() */
421: CHECK_HEAD_DEFN(eq0, err, err_child_eq, 0) /* herr_eq0() */
422: CHECK_HEAD_DEFN(le1, warn, warn_child_lt, 2) /* hwarn_le1() */
423: CHECK_HEAD_DEFN(ge1, err, err_child_gt, 0) /* herr_ge1() */
424: CHECK_HEAD_DEFN(eq1, warn, warn_child_eq, 1) /* hwarn_eq1() */
425:
426:
427: static int
428: check_stdarg(PRE_ARGS)
429: {
430:
431: if (n->args && 1 == n->args->argc)
432: if (MDOC_Std == n->args->argv[0].arg)
433: return(1);
1.23 kristaps 434: return(mdoc_nwarn(mdoc, n, EARGVAL));
1.1 kristaps 435: }
436:
437:
438: static int
439: check_sec(PRE_ARGS, ...)
440: {
441: enum mdoc_sec sec;
442: va_list ap;
443:
444: va_start(ap, n);
445:
446: for (;;) {
447: /* LINTED */
448: sec = (enum mdoc_sec)va_arg(ap, int);
449: if (SEC_CUSTOM == sec)
450: break;
451: if (sec != mdoc->lastsec)
452: continue;
453: va_end(ap);
454: return(1);
455: }
456:
457: va_end(ap);
1.23 kristaps 458: return(mdoc_nwarn(mdoc, n, EBADSEC));
1.1 kristaps 459: }
460:
461:
462: static int
463: check_msec(PRE_ARGS, ...)
464: {
465: va_list ap;
466: int msec;
467:
468: va_start(ap, n);
469: for (;;) {
470: /* LINTED */
471: if (0 == (msec = va_arg(ap, int)))
472: break;
473: if (msec != mdoc->meta.msec)
474: continue;
475: va_end(ap);
476: return(1);
477: }
478:
479: va_end(ap);
1.23 kristaps 480: return(mdoc_nwarn(mdoc, n, EBADMSEC));
1.1 kristaps 481: }
482:
483:
484: static int
485: check_args(struct mdoc *m, const struct mdoc_node *n)
486: {
487: int i;
488:
489: if (NULL == n->args)
490: return(1);
491:
492: assert(n->args->argc);
493: for (i = 0; i < (int)n->args->argc; i++)
494: if ( ! check_argv(m, n, &n->args->argv[i]))
495: return(0);
496:
497: return(1);
498: }
499:
500:
501: static int
502: check_argv(struct mdoc *m, const struct mdoc_node *n,
503: const struct mdoc_argv *v)
504: {
505: int i;
506:
507: for (i = 0; i < (int)v->sz; i++)
508: if ( ! check_text(m, v->line, v->pos, v->value[i]))
509: return(0);
510:
511: if (MDOC_Std == v->arg) {
512: /* `Nm' name must be set. */
513: if (v->sz || m->meta.name)
514: return(1);
1.23 kristaps 515: return(mdoc_nerr(m, n, ENAME));
1.1 kristaps 516: }
517:
518: return(1);
519: }
520:
521:
522: static int
523: check_text(struct mdoc *mdoc, int line, int pos, const char *p)
524: {
1.18 kristaps 525: int c;
1.1 kristaps 526:
1.18 kristaps 527: for ( ; *p; p++, pos++) {
1.1 kristaps 528: if ('\t' == *p) {
529: if ( ! (MDOC_LITERAL & mdoc->flags))
1.4 kristaps 530: if ( ! warn_print(mdoc, line, pos))
531: return(0);
1.1 kristaps 532: } else if ( ! isprint((u_char)*p))
1.4 kristaps 533: if ( ! warn_print(mdoc, line, pos))
534: return(0);
1.1 kristaps 535:
536: if ('\\' != *p)
537: continue;
538:
1.18 kristaps 539: c = mandoc_special(p);
1.1 kristaps 540: if (c) {
1.18 kristaps 541: p += c - 1;
542: pos += c - 1;
1.1 kristaps 543: continue;
544: }
545: if ( ! (MDOC_IGN_ESCAPE & mdoc->pflags))
1.23 kristaps 546: return(mdoc_perr(mdoc, line, pos, EESCAPE));
547: if ( ! mdoc_perr(mdoc, line, pos, EESCAPE))
1.1 kristaps 548: return(0);
549: }
550:
551: return(1);
552: }
553:
554:
555:
556:
557: static int
558: check_parent(PRE_ARGS, int tok, enum mdoc_type t)
559: {
560:
561: assert(n->parent);
562: if ((MDOC_ROOT == t || tok == n->parent->tok) &&
563: (t == n->parent->type))
564: return(1);
565:
1.23 kristaps 566: return(mdoc_verr(mdoc, n->line, n->pos, "require parent %s",
1.1 kristaps 567: MDOC_ROOT == t ? "<root>" : mdoc_macronames[tok]));
568: }
569:
570:
571:
572: static int
573: pre_display(PRE_ARGS)
574: {
575: struct mdoc_node *node;
576:
577: /* Display elements (`Bd', `D1'...) cannot be nested. */
578:
579: if (MDOC_BLOCK != n->type)
580: return(1);
581:
582: /* LINTED */
583: for (node = mdoc->last->parent; node; node = node->parent)
584: if (MDOC_BLOCK == node->type)
585: if (MDOC_Bd == node->tok)
586: break;
587: if (NULL == node)
588: return(1);
589:
1.23 kristaps 590: return(mdoc_nerr(mdoc, n, ENESTDISP));
1.1 kristaps 591: }
592:
593:
594: static int
595: pre_bl(PRE_ARGS)
596: {
1.15 kristaps 597: int pos, type, width, offset;
1.1 kristaps 598:
599: if (MDOC_BLOCK != n->type)
600: return(1);
601: if (NULL == n->args)
1.23 kristaps 602: return(mdoc_nerr(mdoc, n, ELISTTYPE));
1.1 kristaps 603:
604: /* Make sure that only one type of list is specified. */
605:
1.15 kristaps 606: type = offset = width = -1;
1.1 kristaps 607:
608: /* LINTED */
1.8 kristaps 609: for (pos = 0; pos < (int)n->args->argc; pos++)
610: switch (n->args->argv[pos].arg) {
1.1 kristaps 611: case (MDOC_Bullet):
612: /* FALLTHROUGH */
613: case (MDOC_Dash):
614: /* FALLTHROUGH */
615: case (MDOC_Enum):
616: /* FALLTHROUGH */
617: case (MDOC_Hyphen):
618: /* FALLTHROUGH */
619: case (MDOC_Item):
620: /* FALLTHROUGH */
621: case (MDOC_Tag):
622: /* FALLTHROUGH */
623: case (MDOC_Diag):
624: /* FALLTHROUGH */
625: case (MDOC_Hang):
626: /* FALLTHROUGH */
627: case (MDOC_Ohang):
628: /* FALLTHROUGH */
629: case (MDOC_Inset):
630: /* FALLTHROUGH */
631: case (MDOC_Column):
1.8 kristaps 632: if (-1 != type)
1.23 kristaps 633: return(mdoc_nerr(mdoc, n, EMULTILIST));
1.8 kristaps 634: type = n->args->argv[pos].arg;
635: break;
1.1 kristaps 636: case (MDOC_Width):
1.8 kristaps 637: if (-1 != width)
1.23 kristaps 638: return(mdoc_nerr(mdoc, n, EARGREP));
1.8 kristaps 639: width = n->args->argv[pos].arg;
640: break;
1.1 kristaps 641: case (MDOC_Offset):
1.8 kristaps 642: if (-1 != offset)
1.23 kristaps 643: return(mdoc_nerr(mdoc, n, EARGREP));
1.8 kristaps 644: offset = n->args->argv[pos].arg;
645: break;
1.1 kristaps 646: default:
647: break;
648: }
649:
650: if (-1 == type)
1.23 kristaps 651: return(mdoc_nerr(mdoc, n, ELISTTYPE));
1.1 kristaps 652:
1.8 kristaps 653: /*
654: * Validate the width field. Some list types don't need width
655: * types and should be warned about them. Others should have it
656: * and must also be warned.
657: */
658:
1.1 kristaps 659: switch (type) {
1.8 kristaps 660: case (MDOC_Tag):
1.23 kristaps 661: if (-1 == width && ! mdoc_nwarn(mdoc, n, EMISSWIDTH))
1.8 kristaps 662: return(0);
663: break;
1.1 kristaps 664: case (MDOC_Column):
665: /* FALLTHROUGH */
666: case (MDOC_Diag):
667: /* FALLTHROUGH */
668: case (MDOC_Inset):
669: /* FALLTHROUGH */
670: case (MDOC_Item):
1.23 kristaps 671: if (-1 != width && ! mdoc_nwarn(mdoc, n, ENOWIDTH))
1.8 kristaps 672: return(0);
673: break;
674: default:
675: break;
676: }
677:
1.1 kristaps 678: return(1);
679: }
680:
681:
682: static int
683: pre_bd(PRE_ARGS)
684: {
685: int i, type, err;
686:
687: if (MDOC_BLOCK != n->type)
688: return(1);
689: if (NULL == n->args)
1.23 kristaps 690: return(mdoc_nerr(mdoc, n, EDISPTYPE));
1.1 kristaps 691:
692: /* Make sure that only one type of display is specified. */
693:
694: /* LINTED */
695: for (i = 0, err = type = 0; ! err &&
696: i < (int)n->args->argc; i++)
697: switch (n->args->argv[i].arg) {
698: case (MDOC_Ragged):
699: /* FALLTHROUGH */
700: case (MDOC_Unfilled):
701: /* FALLTHROUGH */
702: case (MDOC_Filled):
703: /* FALLTHROUGH */
704: case (MDOC_Literal):
705: /* FALLTHROUGH */
706: case (MDOC_File):
707: if (0 == type++)
708: break;
1.23 kristaps 709: return(mdoc_nerr(mdoc, n, EMULTIDISP));
1.1 kristaps 710: default:
711: break;
712: }
713:
714: if (type)
715: return(1);
1.23 kristaps 716: return(mdoc_nerr(mdoc, n, EDISPTYPE));
1.1 kristaps 717: }
718:
719:
720: static int
721: pre_ss(PRE_ARGS)
722: {
723:
724: if (MDOC_BLOCK != n->type)
725: return(1);
726: return(check_parent(mdoc, n, MDOC_Sh, MDOC_BODY));
727: }
728:
729:
730: static int
731: pre_sh(PRE_ARGS)
732: {
733:
734: if (MDOC_BLOCK != n->type)
735: return(1);
736: return(check_parent(mdoc, n, -1, MDOC_ROOT));
737: }
738:
739:
740: static int
741: pre_it(PRE_ARGS)
742: {
743:
744: if (MDOC_BLOCK != n->type)
745: return(1);
746: return(check_parent(mdoc, n, MDOC_Bl, MDOC_BODY));
747: }
748:
749:
750: static int
751: pre_an(PRE_ARGS)
752: {
753:
754: if (NULL == n->args || 1 == n->args->argc)
755: return(1);
1.23 kristaps 756: return(mdoc_verr(mdoc, n->line, n->pos,
757: "only one argument allowed"));
1.1 kristaps 758: }
759:
760:
761: static int
762: pre_lb(PRE_ARGS)
763: {
764:
765: return(check_sec(mdoc, n, SEC_LIBRARY, SEC_CUSTOM));
766: }
767:
768:
769: static int
770: pre_rv(PRE_ARGS)
771: {
772:
773: if ( ! check_msec(mdoc, n, 2, 3, 0))
774: return(0);
775: return(check_stdarg(mdoc, n));
776: }
777:
778:
779: static int
780: pre_ex(PRE_ARGS)
781: {
782:
783: if ( ! check_msec(mdoc, n, 1, 6, 8, 0))
784: return(0);
785: return(check_stdarg(mdoc, n));
786: }
787:
788:
789: static int
790: pre_er(PRE_ARGS)
791: {
792:
1.6 kristaps 793: return(check_msec(mdoc, n, 2, 3, 9, 0));
1.1 kristaps 794: }
795:
796:
797: static int
798: pre_cd(PRE_ARGS)
799: {
800:
801: return(check_msec(mdoc, n, 4, 0));
802: }
803:
804:
805: static int
806: pre_dt(PRE_ARGS)
807: {
808:
809: if (0 == mdoc->meta.date || mdoc->meta.os)
1.23 kristaps 810: if ( ! mdoc_nwarn(mdoc, n, EPROLOOO))
1.1 kristaps 811: return(0);
812: if (mdoc->meta.title)
1.23 kristaps 813: if ( ! mdoc_nwarn(mdoc, n, EPROLREP))
1.1 kristaps 814: return(0);
815: return(1);
816: }
817:
818:
819: static int
820: pre_os(PRE_ARGS)
821: {
822:
823: if (NULL == mdoc->meta.title || 0 == mdoc->meta.date)
1.23 kristaps 824: if ( ! mdoc_nwarn(mdoc, n, EPROLOOO))
1.1 kristaps 825: return(0);
826: if (mdoc->meta.os)
1.23 kristaps 827: if ( ! mdoc_nwarn(mdoc, n, EPROLREP))
1.1 kristaps 828: return(0);
829: return(1);
830: }
831:
832:
833: static int
834: pre_dd(PRE_ARGS)
835: {
836:
837: if (mdoc->meta.title || mdoc->meta.os)
1.23 kristaps 838: if ( ! mdoc_nwarn(mdoc, n, EPROLOOO))
1.1 kristaps 839: return(0);
840: if (mdoc->meta.date)
1.23 kristaps 841: if ( ! mdoc_nwarn(mdoc, n, EPROLREP))
1.1 kristaps 842: return(0);
843: return(1);
844: }
845:
846:
847: static int
848: post_bf(POST_ARGS)
849: {
850: char *p;
851: struct mdoc_node *head;
852:
853: if (MDOC_BLOCK != mdoc->last->type)
854: return(1);
855:
856: head = mdoc->last->head;
857:
1.12 kristaps 858: if (mdoc->last->args && head->child)
1.24 kristaps 859: return(mdoc_nerr(mdoc, mdoc->last, ELINE));
1.13 kristaps 860: else if (mdoc->last->args)
861: return(1);
1.12 kristaps 862:
1.13 kristaps 863: if (NULL == head->child || MDOC_TEXT != head->child->type)
1.24 kristaps 864: return(mdoc_nerr(mdoc, mdoc->last, ELINE));
1.1 kristaps 865:
1.13 kristaps 866: p = head->child->string;
1.1 kristaps 867:
1.13 kristaps 868: if (0 == strcmp(p, "Em"))
869: return(1);
870: else if (0 == strcmp(p, "Li"))
871: return(1);
872: else if (0 == strcmp(p, "Sm"))
873: return(1);
1.1 kristaps 874:
1.23 kristaps 875: return(mdoc_nerr(mdoc, head, EFONT));
1.1 kristaps 876: }
877:
878:
879: static int
1.31 ! kristaps 880: post_lb(POST_ARGS)
! 881: {
! 882:
! 883: if (mdoc_a2lib(mdoc->last->child->string))
! 884: return(1);
! 885: return(mdoc_nwarn(mdoc, mdoc->last, ELIB));
! 886: }
! 887:
! 888:
! 889: static int
1.1 kristaps 890: post_nm(POST_ARGS)
891: {
892:
893: if (mdoc->last->child)
894: return(1);
895: if (mdoc->meta.name)
896: return(1);
1.23 kristaps 897: return(mdoc_nerr(mdoc, mdoc->last, ENAME));
1.1 kristaps 898: }
899:
900:
901: static int
902: post_at(POST_ARGS)
903: {
904:
905: if (NULL == mdoc->last->child)
906: return(1);
907: if (MDOC_TEXT != mdoc->last->child->type)
1.23 kristaps 908: return(mdoc_nerr(mdoc, mdoc->last, EATT));
1.1 kristaps 909: if (mdoc_a2att(mdoc->last->child->string))
910: return(1);
1.23 kristaps 911: return(mdoc_nerr(mdoc, mdoc->last, EATT));
1.1 kristaps 912: }
913:
914:
915: static int
916: post_an(POST_ARGS)
917: {
918:
919: if (mdoc->last->args) {
920: if (NULL == mdoc->last->child)
921: return(1);
1.23 kristaps 922: return(mdoc_nerr(mdoc, mdoc->last, ELINE));
1.1 kristaps 923: }
924:
925: if (mdoc->last->child)
926: return(1);
1.23 kristaps 927: return(mdoc_nerr(mdoc, mdoc->last, ELINE));
1.1 kristaps 928: }
929:
930:
931: static int
932: post_args(POST_ARGS)
933: {
934:
935: if (mdoc->last->args)
936: return(1);
1.23 kristaps 937: return(mdoc_nerr(mdoc, mdoc->last, ELINE));
1.1 kristaps 938: }
939:
940:
941: static int
942: post_it(POST_ARGS)
943: {
944: int type, i, cols;
945: struct mdoc_node *n, *c;
946:
947: if (MDOC_BLOCK != mdoc->last->type)
948: return(1);
949:
950: n = mdoc->last->parent->parent;
951: if (NULL == n->args)
1.23 kristaps 952: return(mdoc_nerr(mdoc, mdoc->last, ELISTTYPE));
1.1 kristaps 953:
954: /* Some types require block-head, some not. */
955:
956: /* LINTED */
957: for (cols = type = -1, i = 0; -1 == type &&
958: i < (int)n->args->argc; i++)
959: switch (n->args->argv[i].arg) {
960: case (MDOC_Tag):
961: /* FALLTHROUGH */
962: case (MDOC_Diag):
963: /* FALLTHROUGH */
964: case (MDOC_Hang):
965: /* FALLTHROUGH */
966: case (MDOC_Ohang):
967: /* FALLTHROUGH */
968: case (MDOC_Inset):
969: /* FALLTHROUGH */
970: case (MDOC_Bullet):
971: /* FALLTHROUGH */
972: case (MDOC_Dash):
973: /* FALLTHROUGH */
974: case (MDOC_Enum):
975: /* FALLTHROUGH */
976: case (MDOC_Hyphen):
977: /* FALLTHROUGH */
978: case (MDOC_Item):
979: type = n->args->argv[i].arg;
980: break;
981: case (MDOC_Column):
982: type = n->args->argv[i].arg;
983: cols = (int)n->args->argv[i].sz;
984: break;
985: default:
986: break;
987: }
988:
989: if (-1 == type)
1.23 kristaps 990: return(mdoc_nerr(mdoc, mdoc->last, ELISTTYPE));
1.1 kristaps 991:
992: switch (type) {
993: case (MDOC_Tag):
994: if (NULL == mdoc->last->head->child)
1.23 kristaps 995: if ( ! mdoc_nwarn(mdoc, mdoc->last, ELINE))
1.1 kristaps 996: return(0);
997: break;
998: case (MDOC_Hang):
999: /* FALLTHROUGH */
1000: case (MDOC_Ohang):
1001: /* FALLTHROUGH */
1002: case (MDOC_Inset):
1003: /* FALLTHROUGH */
1004: case (MDOC_Diag):
1005: if (NULL == mdoc->last->head->child)
1.23 kristaps 1006: if ( ! mdoc_nwarn(mdoc, mdoc->last, ELINE))
1.1 kristaps 1007: return(0);
1008: if (NULL == mdoc->last->body->child)
1.23 kristaps 1009: if ( ! mdoc_nwarn(mdoc, mdoc->last, EMULTILINE))
1.1 kristaps 1010: return(0);
1011: break;
1012: case (MDOC_Bullet):
1013: /* FALLTHROUGH */
1014: case (MDOC_Dash):
1015: /* FALLTHROUGH */
1016: case (MDOC_Enum):
1017: /* FALLTHROUGH */
1018: case (MDOC_Hyphen):
1019: /* FALLTHROUGH */
1020: case (MDOC_Item):
1021: if (mdoc->last->head->child)
1.23 kristaps 1022: if ( ! mdoc_nwarn(mdoc, mdoc->last, ENOLINE))
1.1 kristaps 1023: return(0);
1024: if (NULL == mdoc->last->body->child)
1.23 kristaps 1025: if ( ! mdoc_nwarn(mdoc, mdoc->last, EMULTILINE))
1.1 kristaps 1026: return(0);
1027: break;
1028: case (MDOC_Column):
1029: if (NULL == mdoc->last->head->child)
1.23 kristaps 1030: if ( ! mdoc_nwarn(mdoc, mdoc->last, ELINE))
1.1 kristaps 1031: return(0);
1032: if (mdoc->last->body->child)
1.23 kristaps 1033: if ( ! mdoc_nwarn(mdoc, mdoc->last, ENOMULTILINE))
1.1 kristaps 1034: return(0);
1035: c = mdoc->last->child;
1036: for (i = 0; c && MDOC_HEAD == c->type; c = c->next)
1037: i++;
1038: if (i == cols)
1039: break;
1.23 kristaps 1040: return(mdoc_verr(mdoc, mdoc->last->line, mdoc->last->pos,
1041: "column mismatch (have %d, want %d)",
1042: i, cols));
1.1 kristaps 1043: default:
1044: break;
1045: }
1046:
1047: return(1);
1048: }
1049:
1050:
1051: static int
1.14 kristaps 1052: post_bl_head(POST_ARGS)
1053: {
1054: int i;
1055: const struct mdoc_node *n;
1056:
1057: n = mdoc->last->parent;
1058: assert(n->args);
1059:
1060: for (i = 0; i < (int)n->args->argc; i++)
1061: if (n->args->argv[i].arg == MDOC_Column)
1062: break;
1063:
1064: if (i == (int)n->args->argc)
1065: return(1);
1066:
1067: if (n->args->argv[i].sz && mdoc->last->child)
1.23 kristaps 1068: return(mdoc_nerr(mdoc, n, ECOLMIS));
1.14 kristaps 1069:
1070: return(1);
1071: }
1072:
1073:
1074: static int
1.1 kristaps 1075: post_bl(POST_ARGS)
1076: {
1077: struct mdoc_node *n;
1078:
1.14 kristaps 1079: if (MDOC_HEAD == mdoc->last->type)
1080: return(post_bl_head(mdoc));
1.1 kristaps 1081: if (MDOC_BODY != mdoc->last->type)
1082: return(1);
1083: if (NULL == mdoc->last->child)
1084: return(1);
1085:
1086: /* LINTED */
1087: for (n = mdoc->last->child; n; n = n->next) {
1088: if (MDOC_BLOCK == n->type)
1089: if (MDOC_It == n->tok)
1090: continue;
1.23 kristaps 1091: return(mdoc_verr(mdoc, n->line, n->pos,
1092: "bad child of parent %s",
1.1 kristaps 1093: mdoc_macronames[mdoc->last->tok]));
1094: }
1095:
1096: return(1);
1097: }
1098:
1099:
1100: static int
1101: ebool(struct mdoc *mdoc)
1102: {
1103: struct mdoc_node *n;
1104:
1105: /* LINTED */
1106: for (n = mdoc->last->child; n; n = n->next) {
1107: if (MDOC_TEXT != n->type)
1108: break;
1.2 kristaps 1109: if (0 == strcmp(n->string, "on"))
1.1 kristaps 1110: continue;
1.2 kristaps 1111: if (0 == strcmp(n->string, "off"))
1.1 kristaps 1112: continue;
1113: break;
1114: }
1115:
1116: if (NULL == n)
1117: return(1);
1.23 kristaps 1118: return(mdoc_nerr(mdoc, n, EBOOL));
1.1 kristaps 1119: }
1120:
1121:
1122: static int
1123: post_root(POST_ARGS)
1124: {
1125:
1126: if (NULL == mdoc->first->child)
1.23 kristaps 1127: return(mdoc_nerr(mdoc, mdoc->first, ENODAT));
1.12 kristaps 1128: if ( ! (MDOC_PBODY & mdoc->flags))
1.23 kristaps 1129: return(mdoc_nerr(mdoc, mdoc->first, ENOPROLOGUE));
1.1 kristaps 1130:
1131: if (MDOC_BLOCK != mdoc->first->child->type)
1.23 kristaps 1132: return(mdoc_nerr(mdoc, mdoc->first, ENODAT));
1.1 kristaps 1133: if (MDOC_Sh != mdoc->first->child->tok)
1.23 kristaps 1134: return(mdoc_nerr(mdoc, mdoc->first, ENODAT));
1.1 kristaps 1135:
1136: return(1);
1137: }
1138:
1139:
1140: static int
1141: post_st(POST_ARGS)
1142: {
1143:
1144: if (mdoc_a2st(mdoc->last->child->string))
1145: return(1);
1.30 kristaps 1146: return(mdoc_nerr(mdoc, mdoc->last, EBADSTAND));
1.1 kristaps 1147: }
1148:
1149:
1150: static int
1151: post_sh(POST_ARGS)
1152: {
1153:
1154: if (MDOC_HEAD == mdoc->last->type)
1155: return(post_sh_head(mdoc));
1156: if (MDOC_BODY == mdoc->last->type)
1157: return(post_sh_body(mdoc));
1158:
1159: return(1);
1160: }
1161:
1162:
1163: static int
1164: post_sh_body(POST_ARGS)
1165: {
1166: struct mdoc_node *n;
1167:
1.29 kristaps 1168: if (SEC_NAME != mdoc->lastsec)
1.1 kristaps 1169: return(1);
1170:
1171: /*
1172: * Warn if the NAME section doesn't contain the `Nm' and `Nd'
1173: * macros (can have multiple `Nm' and one `Nd'). Note that the
1174: * children of the BODY declaration can also be "text".
1175: */
1176:
1177: if (NULL == (n = mdoc->last->child))
1.23 kristaps 1178: return(mdoc_nwarn(mdoc, mdoc->last, ENAMESECINC));
1.1 kristaps 1179:
1180: for ( ; n && n->next; n = n->next) {
1181: if (MDOC_ELEM == n->type && MDOC_Nm == n->tok)
1182: continue;
1.28 kristaps 1183: if (MDOC_TEXT == n->type)
1184: continue;
1.23 kristaps 1185: if ( ! mdoc_nwarn(mdoc, mdoc->last, ENAMESECINC))
1.1 kristaps 1186: return(0);
1187: }
1188:
1.27 kristaps 1189: if (MDOC_BLOCK == n->type && MDOC_Nd == n->tok)
1.1 kristaps 1190: return(1);
1.23 kristaps 1191: return(mdoc_nwarn(mdoc, mdoc->last, ENAMESECINC));
1.1 kristaps 1192: }
1193:
1194:
1195: static int
1196: post_sh_head(POST_ARGS)
1197: {
1.2 kristaps 1198: char buf[64];
1199: enum mdoc_sec sec;
1200: const struct mdoc_node *n;
1.1 kristaps 1201:
1202: /*
1203: * Process a new section. Sections are either "named" or
1204: * "custom"; custom sections are user-defined, while named ones
1205: * usually follow a conventional order and may only appear in
1206: * certain manual sections.
1207: */
1208:
1.12 kristaps 1209: buf[0] = 0;
1.1 kristaps 1210:
1.2 kristaps 1211: for (n = mdoc->last->child; n; n = n->next) {
1.12 kristaps 1212: /* XXX - copied from compact(). */
1.2 kristaps 1213: assert(MDOC_TEXT == n->type);
1.12 kristaps 1214:
1.2 kristaps 1215: if (strlcat(buf, n->string, 64) >= 64)
1.23 kristaps 1216: return(mdoc_nerr(mdoc, n, ETOOLONG));
1.2 kristaps 1217: if (NULL == n->next)
1218: continue;
1219: if (strlcat(buf, " ", 64) >= 64)
1.23 kristaps 1220: return(mdoc_nerr(mdoc, n, ETOOLONG));
1.2 kristaps 1221: }
1.1 kristaps 1222:
1223: sec = mdoc_atosec(buf);
1224:
1.12 kristaps 1225: /*
1226: * Check: NAME should always be first, CUSTOM has no roles,
1227: * non-CUSTOM has a conventional order to be followed.
1228: */
1.1 kristaps 1229:
1.12 kristaps 1230: if (SEC_NAME != sec && SEC_NONE == mdoc->lastnamed)
1.23 kristaps 1231: return(mdoc_nerr(mdoc, mdoc->last, ESECNAME));
1.1 kristaps 1232: if (SEC_CUSTOM == sec)
1233: return(1);
1234: if (sec == mdoc->lastnamed)
1.26 kristaps 1235: if ( ! mdoc_nwarn(mdoc, mdoc->last, ESECREP))
1236: return(0);
1.1 kristaps 1237: if (sec < mdoc->lastnamed)
1.26 kristaps 1238: if ( ! mdoc_nwarn(mdoc, mdoc->last, ESECOOO))
1239: return(0);
1.1 kristaps 1240:
1.12 kristaps 1241: /*
1242: * Check particular section/manual conventions. LIBRARY can
1243: * only occur in msec 2, 3 (TODO: are there more of these?).
1244: */
1.1 kristaps 1245:
1246: switch (sec) {
1247: case (SEC_LIBRARY):
1248: switch (mdoc->meta.msec) {
1249: case (2):
1250: /* FALLTHROUGH */
1251: case (3):
1252: break;
1253: default:
1.23 kristaps 1254: return(mdoc_nwarn(mdoc, mdoc->last, EWRONGMSEC));
1.1 kristaps 1255: }
1256: break;
1257: default:
1258: break;
1259: }
1260:
1261: return(1);
1262: }
1263:
1264:
1265: static int
1266: pre_fd(PRE_ARGS)
1267: {
1268:
1269: return(check_sec(mdoc, n, SEC_SYNOPSIS, SEC_CUSTOM));
1270: }
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