Annotation of mandoc/validate.c, Revision 1.58
1.58 ! kristaps 1: /* $Id: validate.c,v 1.57 2009/02/24 13:57:17 kristaps Exp $ */
1.1 kristaps 2: /*
3: * Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se>
4: *
5: * Permission to use, copy, modify, and distribute this software for any
6: * purpose with or without fee is hereby granted, provided that the
7: * above copyright notice and this permission notice appear in all
8: * copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
11: * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
12: * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
13: * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
14: * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
15: * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
16: * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
17: * PERFORMANCE OF THIS SOFTWARE.
18: */
19: #include <assert.h>
1.56 kristaps 20: #include <ctype.h>
1.8 kristaps 21: #include <stdlib.h>
1.1 kristaps 22:
23: #include "private.h"
24:
1.44 kristaps 25: /*
26: * Pre- and post-validate macros as they're parsed. Pre-validation
27: * occurs when the macro has been detected and its arguments parsed.
28: * Post-validation occurs when all child macros have also been parsed.
29: * In the ELEMENT case, this is simply the parameters of the macro; in
30: * the BLOCK case, this is the HEAD, BODY, TAIL and so on.
31: */
32:
1.55 kristaps 33: #define PRE_ARGS struct mdoc *mdoc, const struct mdoc_node *n
34: #define POST_ARGS struct mdoc *mdoc
35:
36: typedef int (*v_pre)(PRE_ARGS);
37: typedef int (*v_post)(POST_ARGS);
1.14 kristaps 38:
1.36 kristaps 39: /* FIXME: some sections should only occur in specific msecs. */
40: /* FIXME: ignoring Pp. */
41: /* FIXME: math symbols. */
42:
1.14 kristaps 43: struct valids {
1.24 kristaps 44: v_pre *pre;
1.17 kristaps 45: v_post *post;
1.14 kristaps 46: };
1.1 kristaps 47:
1.37 kristaps 48: /* Utility checks. */
49:
1.55 kristaps 50: static int check_parent(PRE_ARGS, int, enum mdoc_type);
51: static int check_msec(PRE_ARGS, int, enum mdoc_msec *);
52: static int check_stdarg(PRE_ARGS);
53:
54: static int check_text(struct mdoc *,
55: size_t, size_t, const char *);
56:
1.51 kristaps 57: static int err_child_lt(struct mdoc *, const char *, int);
58: static int err_child_gt(struct mdoc *, const char *, int);
59: static int warn_child_gt(struct mdoc *, const char *, int);
60: static int err_child_eq(struct mdoc *, const char *, int);
61: static int warn_child_eq(struct mdoc *, const char *, int);
62:
63: /* Utility auxiliaries. */
64:
65: static inline int count_child(struct mdoc *);
66: static inline int warn_count(struct mdoc *, const char *,
67: int, const char *, int);
68: static inline int err_count(struct mdoc *, const char *,
69: int, const char *, int);
1.11 kristaps 70:
1.37 kristaps 71: /* Specific pre-child-parse routines. */
72:
1.55 kristaps 73: static int pre_display(PRE_ARGS);
74: static int pre_sh(PRE_ARGS);
75: static int pre_ss(PRE_ARGS);
76: static int pre_bd(PRE_ARGS);
77: static int pre_bl(PRE_ARGS);
78: static int pre_it(PRE_ARGS);
79: static int pre_cd(PRE_ARGS);
80: static int pre_er(PRE_ARGS);
81: static int pre_ex(PRE_ARGS);
82: static int pre_rv(PRE_ARGS);
83: static int pre_an(PRE_ARGS);
84: static int pre_st(PRE_ARGS);
85: static int pre_prologue(PRE_ARGS);
86: static int pre_prologue(PRE_ARGS);
87: static int pre_prologue(PRE_ARGS);
1.24 kristaps 88:
1.37 kristaps 89: /* Specific post-child-parse routines. */
90:
1.55 kristaps 91: static int herr_ge1(POST_ARGS);
92: static int herr_le1(POST_ARGS);
93: static int herr_eq0(POST_ARGS);
94: static int eerr_eq0(POST_ARGS);
95: static int eerr_le1(POST_ARGS);
96: static int eerr_le2(POST_ARGS);
97: static int eerr_eq1(POST_ARGS);
98: static int eerr_ge1(POST_ARGS);
99: static int ewarn_eq0(POST_ARGS);
100: static int ewarn_eq1(POST_ARGS);
101: static int bwarn_ge1(POST_ARGS);
1.58 ! kristaps 102: static int hwarn_eq1(POST_ARGS);
1.55 kristaps 103: static int ewarn_ge1(POST_ARGS);
104: static int ebool(POST_ARGS);
105:
106: static int post_sh(POST_ARGS);
107: static int post_sh_body(POST_ARGS);
108: static int post_sh_head(POST_ARGS);
1.57 kristaps 109: static int post_fd(POST_ARGS);
1.55 kristaps 110: static int post_bl(POST_ARGS);
111: static int post_it(POST_ARGS);
112: static int post_ex(POST_ARGS);
113: static int post_an(POST_ARGS);
114: static int post_at(POST_ARGS);
115: static int post_xr(POST_ARGS);
116: static int post_nm(POST_ARGS);
117: static int post_bf(POST_ARGS);
118: static int post_root(POST_ARGS);
1.37 kristaps 119:
120: /* Collections of pre-child-parse routines. */
1.17 kristaps 121:
1.24 kristaps 122: static v_pre pres_prologue[] = { pre_prologue, NULL };
123: static v_pre pres_d1[] = { pre_display, NULL };
124: static v_pre pres_bd[] = { pre_display, pre_bd, NULL };
125: static v_pre pres_bl[] = { pre_bl, NULL };
1.25 kristaps 126: static v_pre pres_it[] = { pre_it, NULL };
1.33 kristaps 127: static v_pre pres_ss[] = { pre_ss, NULL };
128: static v_pre pres_sh[] = { pre_sh, NULL };
129: static v_pre pres_cd[] = { pre_cd, NULL };
130: static v_pre pres_er[] = { pre_er, NULL };
131: static v_pre pres_ex[] = { pre_ex, NULL };
1.36 kristaps 132: static v_pre pres_rv[] = { pre_rv, NULL };
1.35 kristaps 133: static v_pre pres_an[] = { pre_an, NULL };
1.36 kristaps 134: static v_pre pres_st[] = { pre_st, NULL };
1.24 kristaps 135:
1.37 kristaps 136: /* Collections of post-child-parse routines. */
137:
138: static v_post posts_bool[] = { eerr_eq1, ebool, NULL };
139: static v_post posts_bd[] = { herr_eq0, bwarn_ge1, NULL };
140: static v_post posts_text[] = { eerr_ge1, NULL };
141: static v_post posts_wtext[] = { ewarn_ge1, NULL };
142: static v_post posts_notext[] = { eerr_eq0, NULL };
1.43 kristaps 143: static v_post posts_wline[] = { bwarn_ge1, herr_eq0, NULL };
1.37 kristaps 144: static v_post posts_sh[] = { herr_ge1, bwarn_ge1, post_sh, NULL };
145: static v_post posts_bl[] = { herr_eq0, bwarn_ge1, post_bl, NULL };
1.25 kristaps 146: static v_post posts_it[] = { post_it, NULL };
1.39 kristaps 147: static v_post posts_in[] = { ewarn_eq1, NULL };
1.37 kristaps 148: static v_post posts_ss[] = { herr_ge1, NULL };
1.52 kristaps 149: static v_post posts_pf[] = { eerr_eq1, NULL };
1.37 kristaps 150: static v_post posts_pp[] = { ewarn_eq0, NULL };
151: static v_post posts_ex[] = { eerr_le1, post_ex, NULL };
1.35 kristaps 152: static v_post posts_an[] = { post_an, NULL };
1.37 kristaps 153: static v_post posts_at[] = { post_at, NULL };
154: static v_post posts_xr[] = { eerr_ge1, eerr_le2, post_xr, NULL };
155: static v_post posts_nm[] = { post_nm, NULL };
1.41 kristaps 156: static v_post posts_bf[] = { herr_le1, post_bf, NULL };
1.45 kristaps 157: static v_post posts_rs[] = { herr_eq0, bwarn_ge1, NULL };
1.58 ! kristaps 158: static v_post posts_fo[] = { hwarn_eq1, bwarn_ge1, NULL };
1.45 kristaps 159: static v_post posts_bk[] = { herr_eq0, bwarn_ge1, NULL };
1.57 kristaps 160: static v_post posts_fd[] = { ewarn_ge1, post_fd, NULL };
1.9 kristaps 161:
1.37 kristaps 162: /* Per-macro pre- and post-child-check routine collections. */
1.12 kristaps 163:
1.9 kristaps 164: const struct valids mdoc_valids[MDOC_MAX] = {
1.51 kristaps 165: { NULL, NULL }, /* \" */
166: { pres_prologue, posts_text }, /* Dd */
167: { pres_prologue, NULL }, /* Dt */
168: { pres_prologue, NULL }, /* Os */
169: { pres_sh, posts_sh }, /* Sh */
170: { pres_ss, posts_ss }, /* Ss */
171: { NULL, posts_pp }, /* Pp */
172: { pres_d1, posts_wline }, /* D1 */
173: { pres_d1, posts_wline }, /* Dl */
174: { pres_bd, posts_bd }, /* Bd */
175: { NULL, NULL }, /* Ed */
176: { pres_bl, posts_bl }, /* Bl */
177: { NULL, NULL }, /* El */
178: { pres_it, posts_it }, /* It */
179: { NULL, posts_text }, /* Ad */
180: { pres_an, posts_an }, /* An */
181: { NULL, NULL }, /* Ar */
182: { pres_cd, posts_text }, /* Cd */
183: { NULL, NULL }, /* Cm */
184: { NULL, posts_text }, /* Dv */
185: { pres_er, posts_text }, /* Er */
186: { NULL, posts_text }, /* Ev */
187: { pres_ex, posts_ex }, /* Ex */
188: { NULL, posts_text }, /* Fa */
1.57 kristaps 189: { NULL, posts_fd }, /* Fd */
1.51 kristaps 190: { NULL, NULL }, /* Fl */
191: { NULL, posts_text }, /* Fn */
192: { NULL, posts_wtext }, /* Ft */
193: { NULL, posts_text }, /* Ic */
194: { NULL, posts_in }, /* In */
195: { NULL, posts_text }, /* Li */
196: { NULL, posts_wtext }, /* Nd */
197: { NULL, posts_nm }, /* Nm */
198: { NULL, posts_wline }, /* Op */
199: { NULL, NULL }, /* Ot */
200: { NULL, NULL }, /* Pa */
201: { pres_rv, posts_notext }, /* Rv */
202: { pres_st, posts_notext }, /* St */
203: { NULL, posts_text }, /* Va */
204: { NULL, posts_text }, /* Vt */
205: { NULL, posts_xr }, /* Xr */
206: { NULL, posts_text }, /* %A */
207: { NULL, posts_text }, /* %B */
208: { NULL, posts_text }, /* %D */
209: { NULL, posts_text }, /* %I */
210: { NULL, posts_text }, /* %J */
211: { NULL, posts_text }, /* %N */
212: { NULL, posts_text }, /* %O */
213: { NULL, posts_text }, /* %P */
214: { NULL, posts_text }, /* %R */
215: { NULL, posts_text }, /* %T */
216: { NULL, posts_text }, /* %V */
217: { NULL, NULL }, /* Ac */
218: { NULL, NULL }, /* Ao */
219: { NULL, posts_wline }, /* Aq */
220: { NULL, posts_at }, /* At */
221: { NULL, NULL }, /* Bc */
222: { NULL, posts_bf }, /* Bf */
223: { NULL, NULL }, /* Bo */
224: { NULL, posts_wline }, /* Bq */
225: { NULL, NULL }, /* Bsx */
226: { NULL, NULL }, /* Bx */
227: { NULL, posts_bool }, /* Db */
228: { NULL, NULL }, /* Dc */
229: { NULL, NULL }, /* Do */
230: { NULL, posts_wline }, /* Dq */
231: { NULL, NULL }, /* Ec */
232: { NULL, NULL }, /* Ef */
233: { NULL, posts_text }, /* Em */
234: { NULL, NULL }, /* Eo */
235: { NULL, NULL }, /* Fx */
236: { NULL, posts_text }, /* Ms */
237: { NULL, posts_notext }, /* No */
238: { NULL, posts_notext }, /* Ns */
239: { NULL, NULL }, /* Nx */
240: { NULL, NULL }, /* Ox */
241: { NULL, NULL }, /* Pc */
1.52 kristaps 242: { NULL, posts_pf }, /* Pf */
1.51 kristaps 243: { NULL, NULL }, /* Po */
244: { NULL, posts_wline }, /* Pq */
245: { NULL, NULL }, /* Qc */
246: { NULL, posts_wline }, /* Ql */
247: { NULL, NULL }, /* Qo */
248: { NULL, posts_wline }, /* Qq */
249: { NULL, NULL }, /* Re */
250: { NULL, posts_rs }, /* Rs */
251: { NULL, NULL }, /* Sc */
252: { NULL, NULL }, /* So */
253: { NULL, posts_wline }, /* Sq */
254: { NULL, posts_bool }, /* Sm */
255: { NULL, posts_text }, /* Sx */
256: { NULL, posts_text }, /* Sy */
257: { NULL, posts_text }, /* Tn */
258: { NULL, NULL }, /* Ux */
259: { NULL, NULL }, /* Xc */
260: { NULL, NULL }, /* Xo */
261: { NULL, posts_fo }, /* Fo */
262: { NULL, NULL }, /* Fc */
263: { NULL, NULL }, /* Oo */
264: { NULL, NULL }, /* Oc */
265: { NULL, posts_bk }, /* Bk */
266: { NULL, NULL }, /* Ek */
267: { NULL, posts_notext }, /* Bt */
268: { NULL, NULL }, /* Hf */
269: { NULL, NULL }, /* Fr */
270: { NULL, posts_notext }, /* Ud */
1.9 kristaps 271: };
1.6 kristaps 272:
273:
1.57 kristaps 274: int
275: mdoc_valid_pre(struct mdoc *mdoc,
276: const struct mdoc_node *node)
277: {
278: v_pre *p;
279: struct mdoc_arg *argv;
280: size_t argc, i, j, line, pos;
281: const char *tp;
282:
283: if (MDOC_TEXT == node->type) {
284: tp = node->data.text.string;
285: line = node->line;
286: pos = node->pos;
287: return(check_text(mdoc, line, pos, tp));
288: }
289:
290: if (MDOC_BLOCK == node->type || MDOC_ELEM == node->type) {
291: argv = MDOC_BLOCK == node->type ?
292: node->data.block.argv :
293: node->data.elem.argv;
294: argc = MDOC_BLOCK == node->type ?
295: node->data.block.argc :
296: node->data.elem.argc;
297:
298: for (i = 0; i < argc; i++) {
299: if (0 == argv[i].sz)
300: continue;
301: for (j = 0; j < argv[i].sz; j++) {
302: tp = argv[i].value[j];
303: line = argv[i].line;
304: pos = argv[i].pos;
305: if ( ! check_text(mdoc, line, pos, tp))
306: return(0);
307: }
308: }
309: }
310:
311: if (NULL == mdoc_valids[node->tok].pre)
312: return(1);
313: for (p = mdoc_valids[node->tok].pre; *p; p++)
314: if ( ! (*p)(mdoc, node))
315: return(0);
316: return(1);
317: }
318:
319:
320: int
321: mdoc_valid_post(struct mdoc *mdoc)
322: {
323: v_post *p;
324:
325: /*
326: * This check occurs after the macro's children have been filled
327: * in: postfix validation. Since this happens when we're
328: * rewinding the scope tree, it's possible to have multiple
329: * invocations (as by design, for now), we set bit MDOC_VALID to
330: * indicate that we've validated.
331: */
332:
333: if (MDOC_VALID & mdoc->last->flags)
334: return(1);
335: mdoc->last->flags |= MDOC_VALID;
336:
337: if (MDOC_TEXT == mdoc->last->type)
338: return(1);
339: if (MDOC_ROOT == mdoc->last->type)
340: return(post_root(mdoc));
341:
342: if (NULL == mdoc_valids[mdoc->last->tok].post)
343: return(1);
344: for (p = mdoc_valids[mdoc->last->tok].post; *p; p++)
345: if ( ! (*p)(mdoc))
346: return(0);
347:
348: return(1);
349: }
350:
351:
352:
1.51 kristaps 353: static inline int
354: warn_count(struct mdoc *m, const char *k,
355: int want, const char *v, int has)
356: {
357:
1.55 kristaps 358: return(mdoc_warn(m, WARN_SYNTAX,
1.58 ! kristaps 359: "suggests %s %s %d (has %d)",
! 360: v, k, want, has));
1.51 kristaps 361: }
362:
363:
364: static inline int
365: err_count(struct mdoc *m, const char *k,
366: int want, const char *v, int has)
367: {
368:
1.58 ! kristaps 369: return(mdoc_err(m, "requires %s %s %d (has %d)",
! 370: v, k, want, has));
1.51 kristaps 371: }
372:
373:
374: static inline int
375: count_child(struct mdoc *mdoc)
1.36 kristaps 376: {
1.51 kristaps 377: int i;
1.36 kristaps 378: struct mdoc_node *n;
379:
380: for (i = 0, n = mdoc->last->child; n; n = n->next, i++)
381: /* Do nothing */ ;
1.53 kristaps 382:
1.36 kristaps 383: return(i);
384: }
385:
386:
1.53 kristaps 387: /*
388: * Build these up with macros because they're basically the same check
389: * for different inequalities. Yes, this could be done with functions,
390: * but this is reasonable for now.
391: */
1.36 kristaps 392:
1.53 kristaps 393: #define CHECK_CHILD_DEFN(lvl, name, ineq) \
394: static int \
395: lvl##_child_##name(struct mdoc *mdoc, const char *p, int sz) \
396: { \
397: int i; \
398: if ((i = count_child(mdoc)) ineq sz) \
399: return(1); \
400: return(lvl##_count(mdoc, #ineq, sz, p, i)); \
401: }
402:
403: #define CHECK_BODY_DEFN(name, lvl, func, num) \
404: static int \
1.55 kristaps 405: b##lvl##_##name(POST_ARGS) \
1.53 kristaps 406: { \
407: if (MDOC_BODY != mdoc->last->type) \
408: return(1); \
409: return(func(mdoc, "multiline parameters", (num))); \
410: }
411:
412: #define CHECK_ELEM_DEFN(name, lvl, func, num) \
413: static int \
1.55 kristaps 414: e##lvl##_##name(POST_ARGS) \
1.53 kristaps 415: { \
416: assert(MDOC_ELEM == mdoc->last->type); \
417: return(func(mdoc, "line parameters", (num))); \
418: }
419:
420: #define CHECK_HEAD_DEFN(name, lvl, func, num) \
421: static int \
1.55 kristaps 422: h##lvl##_##name(POST_ARGS) \
1.53 kristaps 423: { \
424: if (MDOC_HEAD != mdoc->last->type) \
425: return(1); \
1.58 ! kristaps 426: return(func(mdoc, "line parameters", (num))); \
1.36 kristaps 427: }
428:
429:
1.53 kristaps 430: CHECK_CHILD_DEFN(warn, gt, >) /* warn_child_gt() */
431: CHECK_CHILD_DEFN(err, gt, >) /* err_child_gt() */
432: CHECK_CHILD_DEFN(warn, eq, ==) /* warn_child_eq() */
433: CHECK_CHILD_DEFN(err, eq, ==) /* err_child_eq() */
434: CHECK_CHILD_DEFN(err, lt, <) /* err_child_lt() */
435: CHECK_BODY_DEFN(ge1, warn, warn_child_gt, 0) /* bwarn_ge1() */
436: CHECK_ELEM_DEFN(eq1, warn, warn_child_eq, 1) /* ewarn_eq1() */
437: CHECK_ELEM_DEFN(eq0, warn, warn_child_eq, 0) /* ewarn_eq0() */
438: CHECK_ELEM_DEFN(ge1, warn, warn_child_gt, 0) /* ewarn_gt1() */
439: CHECK_ELEM_DEFN(eq1, err, err_child_eq, 1) /* eerr_eq1() */
440: CHECK_ELEM_DEFN(le2, err, err_child_lt, 3) /* eerr_le2() */
441: CHECK_ELEM_DEFN(le1, err, err_child_lt, 2) /* eerr_le1() */
442: CHECK_ELEM_DEFN(eq0, err, err_child_eq, 0) /* eerr_eq0() */
443: CHECK_ELEM_DEFN(ge1, err, err_child_gt, 0) /* eerr_ge1() */
444: CHECK_HEAD_DEFN(eq0, err, err_child_eq, 0) /* herr_eq0() */
445: CHECK_HEAD_DEFN(le1, err, err_child_lt, 2) /* herr_le1() */
446: CHECK_HEAD_DEFN(ge1, err, err_child_gt, 0) /* herr_ge1() */
1.58 ! kristaps 447: CHECK_HEAD_DEFN(eq1, warn, warn_child_eq, 1) /* hwarn_eq1() */
1.36 kristaps 448:
449:
450: static int
1.55 kristaps 451: check_stdarg(PRE_ARGS)
1.36 kristaps 452: {
453:
1.55 kristaps 454: if (MDOC_Std == n->data.elem.argv[0].arg &&
455: 1 == n->data.elem.argc)
1.36 kristaps 456: return(1);
1.51 kristaps 457:
1.55 kristaps 458: return(mdoc_nwarn(mdoc, n, WARN_COMPAT,
1.53 kristaps 459: "one argument suggested"));
1.36 kristaps 460: }
461:
462:
463: static int
1.55 kristaps 464: check_msec(PRE_ARGS, int sz, enum mdoc_msec *msecs)
1.33 kristaps 465: {
466: int i;
467:
468: for (i = 0; i < sz; i++)
469: if (msecs[i] == mdoc->meta.msec)
470: return(1);
1.55 kristaps 471: return(mdoc_nwarn(mdoc, n, WARN_COMPAT,
472: "invalid manual section"));
473: }
474:
475:
476: static int
477: check_text(struct mdoc *mdoc, size_t line, size_t pos, const char *p)
478: {
479: size_t c;
480:
481: for ( ; *p; p++) {
1.56 kristaps 482: if ( ! isprint(*p) && '\t' != *p)
483: return(mdoc_perr(mdoc, line, pos,
484: "invalid characters"));
1.55 kristaps 485: if ('\\' != *p)
486: continue;
487: if ((c = mdoc_isescape(p))) {
488: p += (c - 1);
489: continue;
490: }
491: return(mdoc_perr(mdoc, line, pos,
1.56 kristaps 492: "invalid escape sequence"));
1.55 kristaps 493: }
494:
495: return(1);
1.14 kristaps 496: }
497:
498:
1.55 kristaps 499:
500:
1.14 kristaps 501: static int
1.55 kristaps 502: check_parent(PRE_ARGS, int tok, enum mdoc_type t)
1.54 kristaps 503: {
504:
505: assert(n->parent);
506: if ((MDOC_ROOT == t || tok == n->parent->tok) &&
507: (t == n->parent->type))
508: return(1);
509:
510: return(mdoc_nerr(mdoc, n, "require parent %s",
511: MDOC_ROOT == t ? "<root>" : mdoc_macronames[tok]));
512: }
513:
514:
515:
516: static int
1.55 kristaps 517: pre_display(PRE_ARGS)
1.23 kristaps 518: {
1.55 kristaps 519: struct mdoc_node *node;
1.23 kristaps 520:
1.53 kristaps 521: /* Display elements (`Bd', `D1'...) cannot be nested. */
522:
1.55 kristaps 523: if (MDOC_BLOCK != n->type)
1.24 kristaps 524: return(1);
525:
1.38 kristaps 526: /* LINTED */
1.55 kristaps 527: for (node = mdoc->last->parent; node; node = node->parent)
528: if (MDOC_BLOCK == node->type)
529: if (MDOC_Bd == node->tok)
1.23 kristaps 530: break;
1.55 kristaps 531: if (NULL == node)
1.23 kristaps 532: return(1);
1.53 kristaps 533:
1.55 kristaps 534: return(mdoc_nerr(mdoc, n, "displays may not be nested"));
1.23 kristaps 535: }
536:
537:
538: static int
1.55 kristaps 539: pre_bl(PRE_ARGS)
1.24 kristaps 540: {
1.53 kristaps 541: int type, err, i;
1.24 kristaps 542: struct mdoc_arg *argv;
1.53 kristaps 543: size_t argc;
1.24 kristaps 544:
1.55 kristaps 545: if (MDOC_BLOCK != n->type)
1.24 kristaps 546: return(1);
547:
1.55 kristaps 548: argc = n->data.block.argc;
1.24 kristaps 549:
1.53 kristaps 550: /* Make sure that only one type of list is specified. */
551:
1.38 kristaps 552: /* LINTED */
1.53 kristaps 553: for (i = 0, type = err = 0; i < (int)argc; i++) {
1.55 kristaps 554: argv = &n->data.block.argv[i];
1.53 kristaps 555:
1.24 kristaps 556: switch (argv->arg) {
557: case (MDOC_Bullet):
558: /* FALLTHROUGH */
559: case (MDOC_Dash):
560: /* FALLTHROUGH */
561: case (MDOC_Enum):
562: /* FALLTHROUGH */
563: case (MDOC_Hyphen):
564: /* FALLTHROUGH */
565: case (MDOC_Item):
566: /* FALLTHROUGH */
567: case (MDOC_Tag):
568: /* FALLTHROUGH */
569: case (MDOC_Diag):
570: /* FALLTHROUGH */
571: case (MDOC_Hang):
572: /* FALLTHROUGH */
573: case (MDOC_Ohang):
574: /* FALLTHROUGH */
575: case (MDOC_Inset):
1.26 kristaps 576: /* FALLTHROUGH */
577: case (MDOC_Column):
1.53 kristaps 578: if (0 == type++)
579: break;
580: return(mdoc_perr(mdoc, argv->line, argv->pos,
581: "multiple types specified"));
1.24 kristaps 582: default:
583: break;
584: }
585: }
1.53 kristaps 586:
587: if (type)
588: return(1);
589: return(mdoc_err(mdoc, "no type specified"));
1.24 kristaps 590: }
591:
592:
593: static int
1.55 kristaps 594: pre_bd(PRE_ARGS)
1.24 kristaps 595: {
1.53 kristaps 596: int type, err, i;
1.24 kristaps 597: struct mdoc_arg *argv;
1.53 kristaps 598: size_t argc;
1.24 kristaps 599:
1.55 kristaps 600: if (MDOC_BLOCK != n->type)
1.24 kristaps 601: return(1);
602:
1.55 kristaps 603: argc = n->data.block.argc;
1.24 kristaps 604:
1.53 kristaps 605: /* Make sure that only one type of display is specified. */
606:
1.38 kristaps 607: /* LINTED */
1.53 kristaps 608: for (i = 0, err = type = 0; ! err && i < (int)argc; i++) {
1.55 kristaps 609: argv = &n->data.block.argv[i];
1.53 kristaps 610:
1.24 kristaps 611: switch (argv->arg) {
612: case (MDOC_Ragged):
613: /* FALLTHROUGH */
614: case (MDOC_Unfilled):
615: /* FALLTHROUGH */
1.29 kristaps 616: case (MDOC_Filled):
617: /* FALLTHROUGH */
1.24 kristaps 618: case (MDOC_Literal):
619: /* FALLTHROUGH */
620: case (MDOC_File):
1.53 kristaps 621: if (0 == type++)
622: break;
623: return(mdoc_perr(mdoc, argv->line, argv->pos,
624: "multiple types specified"));
1.24 kristaps 625: default:
626: break;
627: }
628: }
1.53 kristaps 629:
630: if (type)
631: return(1);
632: return(mdoc_err(mdoc, "no type specified"));
1.24 kristaps 633: }
634:
635:
636: static int
1.55 kristaps 637: pre_ss(PRE_ARGS)
1.33 kristaps 638: {
639:
1.55 kristaps 640: if (MDOC_BLOCK != n->type)
1.33 kristaps 641: return(1);
1.55 kristaps 642: return(check_parent(mdoc, n, MDOC_Sh, MDOC_BODY));
1.33 kristaps 643: }
644:
645:
646: static int
1.55 kristaps 647: pre_sh(PRE_ARGS)
1.33 kristaps 648: {
649:
1.55 kristaps 650: if (MDOC_BLOCK != n->type)
1.33 kristaps 651: return(1);
1.55 kristaps 652: return(check_parent(mdoc, n, -1, MDOC_ROOT));
1.33 kristaps 653: }
654:
655:
656: static int
1.55 kristaps 657: pre_it(PRE_ARGS)
1.53 kristaps 658: {
659:
660: /* TODO: -width attribute must be specified for -tag. */
661: /* TODO: children too big for -width? */
662:
1.55 kristaps 663: if (MDOC_BLOCK != n->type)
1.53 kristaps 664: return(1);
1.55 kristaps 665: return(check_parent(mdoc, n, MDOC_Bl, MDOC_BODY));
1.53 kristaps 666: }
667:
668:
669: static int
1.55 kristaps 670: pre_st(PRE_ARGS)
1.36 kristaps 671: {
672:
1.55 kristaps 673: if (1 == n->data.elem.argc)
1.36 kristaps 674: return(1);
1.55 kristaps 675: return(mdoc_nerr(mdoc, n, "one argument required"));
1.36 kristaps 676: }
677:
678:
679: static int
1.55 kristaps 680: pre_an(PRE_ARGS)
1.35 kristaps 681: {
1.36 kristaps 682:
1.55 kristaps 683: if (1 >= n->data.elem.argc)
1.35 kristaps 684: return(1);
1.55 kristaps 685: return(mdoc_nerr(mdoc, n, "one argument allowed"));
1.35 kristaps 686: }
687:
688:
689: static int
1.55 kristaps 690: pre_rv(PRE_ARGS)
1.36 kristaps 691: {
1.53 kristaps 692: enum mdoc_msec msecs[] = { MSEC_2, MSEC_3 };
1.36 kristaps 693:
1.55 kristaps 694: if ( ! check_msec(mdoc, n, 2, msecs))
1.36 kristaps 695: return(0);
1.55 kristaps 696: return(check_stdarg(mdoc, n));
1.36 kristaps 697: }
698:
699:
700: static int
1.55 kristaps 701: pre_ex(PRE_ARGS)
1.33 kristaps 702: {
1.53 kristaps 703: enum mdoc_msec msecs[] = { MSEC_1, MSEC_6, MSEC_8 };
1.35 kristaps 704:
1.55 kristaps 705: if ( ! check_msec(mdoc, n, 3, msecs))
1.35 kristaps 706: return(0);
1.55 kristaps 707: return(check_stdarg(mdoc, n));
1.33 kristaps 708: }
709:
710:
711: static int
1.55 kristaps 712: pre_er(PRE_ARGS)
1.33 kristaps 713: {
1.53 kristaps 714: enum mdoc_msec msecs[] = { MSEC_2 };
1.33 kristaps 715:
1.55 kristaps 716: return(check_msec(mdoc, n, 1, msecs));
1.33 kristaps 717: }
718:
719:
720: static int
1.55 kristaps 721: pre_cd(PRE_ARGS)
1.33 kristaps 722: {
1.53 kristaps 723: enum mdoc_msec msecs[] = { MSEC_4 };
1.33 kristaps 724:
1.55 kristaps 725: return(check_msec(mdoc, n, 1, msecs));
1.33 kristaps 726: }
727:
728:
729: static int
1.55 kristaps 730: pre_prologue(PRE_ARGS)
1.20 kristaps 731: {
732:
1.46 kristaps 733: if (SEC_PROLOGUE != mdoc->lastnamed)
1.55 kristaps 734: return(mdoc_nerr(mdoc, n, "prologue only"));
1.20 kristaps 735:
736: /* Check for ordering. */
737:
1.55 kristaps 738: switch (n->tok) {
1.20 kristaps 739: case (MDOC_Os):
1.36 kristaps 740: if (mdoc->meta.title && mdoc->meta.date)
1.20 kristaps 741: break;
1.55 kristaps 742: return(mdoc_nerr(mdoc, n, "prologue out-of-order"));
1.20 kristaps 743: case (MDOC_Dt):
1.36 kristaps 744: if (NULL == mdoc->meta.title && mdoc->meta.date)
1.20 kristaps 745: break;
1.55 kristaps 746: return(mdoc_nerr(mdoc, n, "prologue out-of-order"));
1.20 kristaps 747: case (MDOC_Dd):
1.36 kristaps 748: if (NULL == mdoc->meta.title && 0 == mdoc->meta.date)
1.20 kristaps 749: break;
1.55 kristaps 750: return(mdoc_nerr(mdoc, n, "prologue out-of-order"));
1.20 kristaps 751: default:
752: abort();
753: /* NOTREACHED */
754: }
755:
756: /* Check for repetition. */
757:
1.55 kristaps 758: switch (n->tok) {
1.20 kristaps 759: case (MDOC_Os):
1.36 kristaps 760: if (NULL == mdoc->meta.os)
1.20 kristaps 761: return(1);
762: break;
763: case (MDOC_Dd):
764: if (0 == mdoc->meta.date)
765: return(1);
766: break;
767: case (MDOC_Dt):
1.36 kristaps 768: if (NULL == mdoc->meta.title)
1.20 kristaps 769: return(1);
770: break;
771: default:
772: abort();
773: /* NOTREACHED */
774: }
775:
1.55 kristaps 776: return(mdoc_nerr(mdoc, n, "prologue repetition"));
1.20 kristaps 777: }
778:
779:
1.35 kristaps 780: static int
1.55 kristaps 781: post_bf(POST_ARGS)
1.41 kristaps 782: {
783: char *p;
784: struct mdoc_node *head;
785:
786: if (MDOC_BLOCK != mdoc->last->type)
787: return(1);
1.53 kristaps 788:
1.41 kristaps 789: head = mdoc->last->data.block.head;
790:
791: if (0 == mdoc->last->data.block.argc) {
1.53 kristaps 792: if (NULL == head->child)
793: return(mdoc_err(mdoc, "argument expected"));
794:
795: p = head->child->data.text.string;
796: if (xstrcmp(p, "Em"))
797: return(1);
798: else if (xstrcmp(p, "Li"))
799: return(1);
800: else if (xstrcmp(p, "Sm"))
801: return(1);
802: return(mdoc_nerr(mdoc, head->child, "invalid font"));
1.41 kristaps 803: }
1.53 kristaps 804:
1.41 kristaps 805: if (head->child)
1.53 kristaps 806: return(mdoc_err(mdoc, "argument expected"));
807:
1.41 kristaps 808: if (1 == mdoc->last->data.block.argc)
809: return(1);
1.53 kristaps 810: return(mdoc_err(mdoc, "argument expected"));
1.41 kristaps 811: }
812:
813:
814: static int
1.55 kristaps 815: post_nm(POST_ARGS)
1.37 kristaps 816: {
817:
818: if (mdoc->last->child)
819: return(1);
820: if (mdoc->meta.name)
821: return(1);
1.53 kristaps 822: return(mdoc_err(mdoc, "not yet invoked with name"));
1.37 kristaps 823: }
824:
825:
826: static int
1.55 kristaps 827: post_xr(POST_ARGS)
1.36 kristaps 828: {
829: struct mdoc_node *n;
830:
831: if (NULL == (n = mdoc->last->child->next))
832: return(1);
833: if (MSEC_DEFAULT != mdoc_atomsec(n->data.text.string))
834: return(1);
835: return(mdoc_nerr(mdoc, n, "invalid manual section"));
836: }
837:
838:
839: static int
1.55 kristaps 840: post_at(POST_ARGS)
1.36 kristaps 841: {
842:
1.37 kristaps 843: if (NULL == mdoc->last->child)
844: return(1);
1.36 kristaps 845: if (ATT_DEFAULT != mdoc_atoatt(mdoc->last->child->data.text.string))
846: return(1);
1.53 kristaps 847: return(mdoc_err(mdoc, "require valid symbol"));
1.36 kristaps 848: }
849:
850:
851: static int
1.55 kristaps 852: post_an(POST_ARGS)
1.35 kristaps 853: {
854:
855: if (0 != mdoc->last->data.elem.argc) {
856: if (NULL == mdoc->last->child)
857: return(1);
1.53 kristaps 858: return(mdoc_err(mdoc, "argument(s) expected"));
1.35 kristaps 859: }
860:
861: if (mdoc->last->child)
862: return(1);
1.53 kristaps 863: return(mdoc_err(mdoc, "argument(s) expected"));
1.35 kristaps 864: }
865:
866:
867: static int
1.55 kristaps 868: post_ex(POST_ARGS)
1.35 kristaps 869: {
870:
871: if (0 == mdoc->last->data.elem.argc) {
872: if (mdoc->last->child)
873: return(1);
1.53 kristaps 874: return(mdoc_err(mdoc, "argument(s) expected"));
1.35 kristaps 875: }
876: if (mdoc->last->child)
1.53 kristaps 877: return(mdoc_err(mdoc, "argument(s) expected"));
1.35 kristaps 878: if (1 != mdoc->last->data.elem.argc)
1.53 kristaps 879: return(mdoc_err(mdoc, "argument(s) expected"));
1.35 kristaps 880: if (MDOC_Std != mdoc->last->data.elem.argv[0].arg)
1.53 kristaps 881: return(mdoc_err(mdoc, "argument(s) expected"));
882:
1.35 kristaps 883: return(1);
884: }
885:
886:
1.25 kristaps 887: static int
1.55 kristaps 888: post_it(POST_ARGS)
1.25 kristaps 889: {
1.53 kristaps 890: int type, sv, i;
1.25 kristaps 891: #define TYPE_NONE (0)
892: #define TYPE_BODY (1)
893: #define TYPE_HEAD (2)
1.47 kristaps 894: #define TYPE_OHEAD (3)
1.53 kristaps 895: size_t argc;
1.25 kristaps 896: struct mdoc_node *n;
897:
898: if (MDOC_BLOCK != mdoc->last->type)
899: return(1);
900:
1.53 kristaps 901: n = mdoc->last->parent->parent;
1.25 kristaps 902:
903: argc = n->data.block.argc;
904: type = TYPE_NONE;
1.38 kristaps 905: sv = -1;
1.26 kristaps 906:
907: /* Some types require block-head, some not. */
1.25 kristaps 908:
1.38 kristaps 909: /* LINTED */
1.53 kristaps 910: for (i = 0; TYPE_NONE == type && i < (int)argc; i++)
911: switch (n->data.block.argv[i].arg) {
1.25 kristaps 912: case (MDOC_Tag):
913: /* FALLTHROUGH */
914: case (MDOC_Diag):
915: /* FALLTHROUGH */
916: case (MDOC_Hang):
917: /* FALLTHROUGH */
918: case (MDOC_Ohang):
919: /* FALLTHROUGH */
920: case (MDOC_Inset):
921: type = TYPE_HEAD;
1.53 kristaps 922: sv = n->data.block.argv[i].arg;
1.25 kristaps 923: break;
924: case (MDOC_Bullet):
925: /* FALLTHROUGH */
926: case (MDOC_Dash):
927: /* FALLTHROUGH */
928: case (MDOC_Enum):
929: /* FALLTHROUGH */
930: case (MDOC_Hyphen):
931: /* FALLTHROUGH */
932: case (MDOC_Item):
1.47 kristaps 933: type = TYPE_BODY;
1.53 kristaps 934: sv = n->data.block.argv[i].arg;
1.47 kristaps 935: break;
1.25 kristaps 936: case (MDOC_Column):
1.47 kristaps 937: type = TYPE_OHEAD;
1.53 kristaps 938: sv = n->data.block.argv[i].arg;
1.25 kristaps 939: break;
940: default:
941: break;
942: }
943:
944: assert(TYPE_NONE != type);
945:
1.47 kristaps 946: n = mdoc->last->data.block.head;
947:
1.25 kristaps 948: if (TYPE_HEAD == type) {
1.33 kristaps 949: if (NULL == n->child)
1.53 kristaps 950: if ( ! mdoc_warn(mdoc, WARN_SYNTAX,
951: "argument(s) suggested"))
1.25 kristaps 952: return(0);
953:
1.33 kristaps 954: n = mdoc->last->data.block.body;
955: if (NULL == n->child)
1.53 kristaps 956: if ( ! mdoc_warn(mdoc, WARN_SYNTAX,
957: "multiline body suggested"))
1.25 kristaps 958: return(0);
959:
1.47 kristaps 960: } else if (TYPE_BODY == type) {
961: if (n->child)
1.53 kristaps 962: if ( ! mdoc_warn(mdoc, WARN_SYNTAX,
963: "no argument suggested"))
1.47 kristaps 964: return(0);
965:
966: n = mdoc->last->data.block.body;
967: if (NULL == n->child)
1.53 kristaps 968: if ( ! mdoc_warn(mdoc, WARN_SYNTAX,
969: "multiline body suggested"))
1.47 kristaps 970: return(0);
971: } else {
972: if (NULL == n->child)
1.53 kristaps 973: if ( ! mdoc_warn(mdoc, WARN_SYNTAX,
974: "argument(s) suggested"))
1.47 kristaps 975: return(0);
976:
977: n = mdoc->last->data.block.body;
978: if (n->child)
1.53 kristaps 979: if ( ! mdoc_warn(mdoc, WARN_SYNTAX,
980: "no multiline body suggested"))
1.47 kristaps 981: return(0);
1.25 kristaps 982: }
983:
1.47 kristaps 984: if (MDOC_Column != sv)
1.26 kristaps 985: return(1);
986:
1.38 kristaps 987: argc = mdoc->last->parent->parent->data.block.argv->sz;
1.26 kristaps 988: n = mdoc->last->data.block.head->child;
1.25 kristaps 989:
1.26 kristaps 990: for (i = 0; n; n = n->next)
991: i++;
992:
1.53 kristaps 993: if (i == (int)argc)
1.26 kristaps 994: return(1);
1.53 kristaps 995:
996: return(mdoc_err(mdoc, "need %zu columns (have %d)", argc, i));
1.25 kristaps 997: #undef TYPE_NONE
998: #undef TYPE_BODY
999: #undef TYPE_HEAD
1.47 kristaps 1000: #undef TYPE_OHEAD
1.25 kristaps 1001: }
1002:
1003:
1.24 kristaps 1004: static int
1.55 kristaps 1005: post_bl(POST_ARGS)
1.24 kristaps 1006: {
1.53 kristaps 1007: struct mdoc_node *n;
1.24 kristaps 1008:
1009: if (MDOC_BODY != mdoc->last->type)
1010: return(1);
1011:
1.38 kristaps 1012: /* LINTED */
1.24 kristaps 1013: for (n = mdoc->last->child; n; n = n->next) {
1014: if (MDOC_BLOCK == n->type)
1.25 kristaps 1015: if (MDOC_It == n->tok)
1.24 kristaps 1016: continue;
1017: break;
1018: }
1.53 kristaps 1019:
1.24 kristaps 1020: if (NULL == n)
1021: return(1);
1.53 kristaps 1022:
1023: return(mdoc_nerr(mdoc, n, "bad child of parent list"));
1.24 kristaps 1024: }
1025:
1026:
1.34 kristaps 1027: static int
1.37 kristaps 1028: ebool(struct mdoc *mdoc)
1.34 kristaps 1029: {
1030: struct mdoc_node *n;
1031:
1.38 kristaps 1032: /* LINTED */
1.34 kristaps 1033: for (n = mdoc->last->child; n; n = n->next) {
1034: if (MDOC_TEXT != n->type)
1035: break;
1036: if (xstrcmp(n->data.text.string, "on"))
1037: continue;
1038: if (xstrcmp(n->data.text.string, "off"))
1039: continue;
1040: break;
1041: }
1.53 kristaps 1042:
1.34 kristaps 1043: if (NULL == n)
1044: return(1);
1.53 kristaps 1045: return(mdoc_nerr(mdoc, n, "expected boolean"));
1.37 kristaps 1046: }
1047:
1048:
1049: static int
1.55 kristaps 1050: post_root(POST_ARGS)
1.37 kristaps 1051: {
1052:
1.46 kristaps 1053: if (NULL == mdoc->first->child)
1.53 kristaps 1054: return(mdoc_err(mdoc, "document lacks data"));
1.46 kristaps 1055: if (SEC_PROLOGUE == mdoc->lastnamed)
1.53 kristaps 1056: return(mdoc_err(mdoc, "document lacks prologue"));
1057:
1.46 kristaps 1058: if (MDOC_BLOCK != mdoc->first->child->type)
1.54 kristaps 1059: return(mdoc_err(mdoc, "lacking post-prologue %s",
1.53 kristaps 1060: mdoc_macronames[MDOC_Sh]));
1.46 kristaps 1061: if (MDOC_Sh != mdoc->first->child->tok)
1.54 kristaps 1062: return(mdoc_err(mdoc, "lacking post-prologue %s",
1.53 kristaps 1063: mdoc_macronames[MDOC_Sh]));
1064:
1.37 kristaps 1065: return(1);
1.34 kristaps 1066: }
1067:
1068:
1.20 kristaps 1069: static int
1.55 kristaps 1070: post_sh(POST_ARGS)
1.14 kristaps 1071: {
1.46 kristaps 1072:
1073: if (MDOC_HEAD == mdoc->last->type)
1074: return(post_sh_head(mdoc));
1075: if (MDOC_BODY == mdoc->last->type)
1076: return(post_sh_body(mdoc));
1.53 kristaps 1077:
1.46 kristaps 1078: return(1);
1079: }
1080:
1081:
1082: static int
1.55 kristaps 1083: post_sh_body(POST_ARGS)
1.46 kristaps 1084: {
1085: struct mdoc_node *n;
1086:
1087: if (SEC_NAME != mdoc->lastnamed)
1088: return(1);
1089:
1.51 kristaps 1090: /*
1091: * Warn if the NAME section doesn't contain the `Nm' and `Nd'
1092: * macros (can have multiple `Nm' and one `Nd'). Note that the
1093: * children of the BODY declaration can also be "text".
1094: */
1095:
1.46 kristaps 1096: if (NULL == (n = mdoc->last->child))
1.54 kristaps 1097: return(mdoc_warn(mdoc, WARN_SYNTAX,
1098: "section should have %s and %s",
1.51 kristaps 1099: mdoc_macronames[MDOC_Nm],
1100: mdoc_macronames[MDOC_Nd]));
1101:
1102: for ( ; n && n->next; n = n->next) {
1103: if (MDOC_ELEM == n->type && MDOC_Nm == n->tok)
1104: continue;
1105: if (MDOC_TEXT == n->type)
1106: continue;
1.54 kristaps 1107: if ( ! (mdoc_nwarn(mdoc, n, WARN_SYNTAX,
1108: "section should have %s first",
1.51 kristaps 1109: mdoc_macronames[MDOC_Nm])))
1110: return(0);
1111: }
1112:
1113: if (MDOC_ELEM == n->type && MDOC_Nd == n->tok)
1.46 kristaps 1114: return(1);
1115:
1.54 kristaps 1116: return(mdoc_warn(mdoc, WARN_SYNTAX,
1117: "section should have %s last",
1.51 kristaps 1118: mdoc_macronames[MDOC_Nd]));
1.46 kristaps 1119: }
1120:
1121:
1122: static int
1.55 kristaps 1123: post_sh_head(POST_ARGS)
1.46 kristaps 1124: {
1.36 kristaps 1125: char buf[64];
1.21 kristaps 1126: enum mdoc_sec sec;
1127:
1.25 kristaps 1128: assert(MDOC_Sh == mdoc->last->tok);
1.21 kristaps 1129:
1.54 kristaps 1130: if ( ! xstrlcats(buf, mdoc->last->child, sizeof(buf)))
1131: return(mdoc_err(mdoc, "argument too long"));
1.14 kristaps 1132:
1.46 kristaps 1133: sec = mdoc_atosec(buf);
1134:
1135: if (SEC_BODY == mdoc->lastnamed && SEC_NAME != sec)
1.54 kristaps 1136: return(mdoc_warn(mdoc, WARN_SYNTAX,
1137: "section NAME should be first"));
1.46 kristaps 1138: if (SEC_CUSTOM == sec)
1.21 kristaps 1139: return(1);
1.46 kristaps 1140: if (sec == mdoc->lastnamed)
1.54 kristaps 1141: return(mdoc_warn(mdoc, WARN_SYNTAX,
1142: "section repeated"));
1.46 kristaps 1143: if (sec < mdoc->lastnamed)
1.54 kristaps 1144: return(mdoc_warn(mdoc, WARN_SYNTAX,
1145: "section out of order"));
1.46 kristaps 1146:
1147: return(1);
1.11 kristaps 1148: }
1149:
1150:
1.57 kristaps 1151: static int
1152: post_fd(POST_ARGS)
1.11 kristaps 1153: {
1.39 kristaps 1154:
1.57 kristaps 1155: if (SEC_SYNOPSIS == mdoc->last->sec)
1.25 kristaps 1156: return(1);
1.57 kristaps 1157: return(mdoc_warn(mdoc, WARN_COMPAT,
1158: "suggested only in section SYNOPSIS"));
1.11 kristaps 1159: }
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