1 /* $Id: man_validate.c,v 1.57 2011/01/01 12:59:17 kristaps Exp $ */
3 * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
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.
21 #include <sys/types.h>
34 #include "libmandoc.h"
36 #define CHKARGS struct man *m, struct man_node *n
38 typedef int (*v_check)(CHKARGS);
45 static int check_bline(CHKARGS);
46 static int check_eq0(CHKARGS);
47 static int check_ft(CHKARGS);
48 static int check_le1(CHKARGS);
49 static int check_ge2(CHKARGS);
50 static int check_le5(CHKARGS);
51 static int check_par(CHKARGS);
52 static int check_part(CHKARGS);
53 static int check_root(CHKARGS);
54 static int check_sec(CHKARGS);
55 static int check_text(CHKARGS);
56 static int check_title(CHKARGS);
58 static int post_AT(CHKARGS);
59 static int post_fi(CHKARGS);
60 static int post_nf(CHKARGS);
61 static int post_TH(CHKARGS);
62 static int post_UC(CHKARGS);
64 static v_check posts_at[] = { post_AT, NULL };
65 static v_check posts_eq0[] = { check_eq0, NULL };
66 static v_check posts_fi[] = { check_eq0, post_fi, NULL };
67 static v_check posts_le1[] = { check_le1, NULL };
68 static v_check posts_ft[] = { check_ft, NULL };
69 static v_check posts_nf[] = { check_eq0, post_nf, NULL };
70 static v_check posts_par[] = { check_par, NULL };
71 static v_check posts_part[] = { check_part, NULL };
72 static v_check posts_sec[] = { check_sec, NULL };
73 static v_check posts_th[] = { check_ge2, check_le5, check_title, post_TH, NULL };
74 static v_check posts_uc[] = { post_UC, NULL };
75 static v_check pres_bline[] = { check_bline, NULL };
78 static const struct man_valid man_valids[MAN_MAX] = {
79 { NULL, posts_eq0 }, /* br */
80 { pres_bline, posts_th }, /* TH */
81 { pres_bline, posts_sec }, /* SH */
82 { pres_bline, posts_sec }, /* SS */
83 { pres_bline, posts_par }, /* TP */
84 { pres_bline, posts_par }, /* LP */
85 { pres_bline, posts_par }, /* PP */
86 { pres_bline, posts_par }, /* P */
87 { pres_bline, posts_par }, /* IP */
88 { pres_bline, posts_par }, /* HP */
89 { NULL, NULL }, /* SM */
90 { NULL, NULL }, /* SB */
91 { NULL, NULL }, /* BI */
92 { NULL, NULL }, /* IB */
93 { NULL, NULL }, /* BR */
94 { NULL, NULL }, /* RB */
95 { NULL, NULL }, /* R */
96 { NULL, NULL }, /* B */
97 { NULL, NULL }, /* I */
98 { NULL, NULL }, /* IR */
99 { NULL, NULL }, /* RI */
100 { NULL, posts_eq0 }, /* na */ /* FIXME: should warn only. */
101 { NULL, posts_le1 }, /* sp */ /* FIXME: should warn only. */
102 { pres_bline, posts_nf }, /* nf */
103 { pres_bline, posts_fi }, /* fi */
104 { NULL, NULL }, /* RE */
105 { NULL, posts_part }, /* RS */
106 { NULL, NULL }, /* DT */
107 { NULL, posts_uc }, /* UC */
108 { NULL, NULL }, /* PD */
109 { NULL, posts_at }, /* AT */
110 { NULL, NULL }, /* in */
111 { NULL, posts_ft }, /* ft */
116 man_valid_pre(struct man *m, struct man_node *n)
131 if (NULL == (cp = man_valids[n->tok].pres))
141 man_valid_post(struct man *m)
145 if (MAN_VALID & m->last->flags)
147 m->last->flags |= MAN_VALID;
149 switch (m->last->type) {
151 return(check_text(m, m->last));
153 return(check_root(m, m->last));
160 if (NULL == (cp = man_valids[m->last->tok].posts))
163 if ( ! (*cp)(m, m->last))
174 if (MAN_BLINE & m->flags)
175 man_nmsg(m, n, MANDOCERR_SCOPEEXIT);
176 else if (MAN_ELINE & m->flags)
177 man_nmsg(m, n, MANDOCERR_SCOPEEXIT);
179 m->flags &= ~MAN_BLINE;
180 m->flags &= ~MAN_ELINE;
182 if (NULL == m->first->child) {
183 man_nmsg(m, n, MANDOCERR_NODOCBODY);
185 } else if (NULL == m->meta.title) {
186 man_nmsg(m, n, MANDOCERR_NOTITLE);
189 * If a title hasn't been set, do so now (by
190 * implication, date and section also aren't set).
193 m->meta.title = mandoc_strdup("unknown");
194 m->meta.date = time(NULL);
195 m->meta.msec = mandoc_strdup("1");
208 /* FIXME: is this sufficient? */
209 if ('\0' == *n->child->string) {
210 man_nmsg(m, n, MANDOCERR_SYNTARGCOUNT);
214 for (p = n->child->string; '\0' != *p; p++)
215 /* Only warn about this once... */
216 if (isalpha((u_char)*p) && ! isupper((u_char)*p)) {
217 man_nmsg(m, n, MANDOCERR_UPPERCASE);
232 for (p = n->string, pos = n->pos + 1; *p; p++, pos++) {
233 sz = strcspn(p, "\t\\");
242 if (MAN_LITERAL & m->flags)
244 if (man_pmsg(m, n->line, pos, MANDOCERR_BADTAB))
249 /* Check the special character. */
251 c = mandoc_special(p);
256 man_pmsg(m, n->line, pos, MANDOCERR_BADESCAPE);
263 #define INEQ_DEFINE(x, ineq, name) \
265 check_##name(CHKARGS) \
267 if (n->nchild ineq (x)) \
269 man_vmsg(m, MANDOCERR_SYNTARGCOUNT, n->line, n->pos, \
270 "line arguments %s %d (have %d)", \
271 #ineq, (x), n->nchild); \
275 INEQ_DEFINE(0, ==, eq0)
276 INEQ_DEFINE(1, <=, le1)
277 INEQ_DEFINE(2, >=, ge2)
278 INEQ_DEFINE(5, <=, le5)
290 cp = n->child->string;
309 if ('\0' == cp[1] || ('I' == cp[1] && '\0' == cp[2]))
313 if ('W' == cp[1] && '\0' == cp[2])
321 man_vmsg(m, MANDOCERR_BADFONT,
322 n->line, n->pos, "%s", cp);
327 man_vmsg(m, MANDOCERR_ARGCOUNT, n->line, n->pos,
328 "want one child (have %d)", n->nchild);
337 if (MAN_HEAD == n->type && 0 == n->nchild) {
338 man_nmsg(m, n, MANDOCERR_SYNTARGCOUNT);
340 } else if (MAN_BODY == n->type && 0 == n->nchild)
341 man_nmsg(m, n, MANDOCERR_NOBODY);
351 if (MAN_BODY == n->type && 0 == n->nchild)
352 man_nmsg(m, n, MANDOCERR_NOBODY);
362 if (MAN_BODY == n->type)
369 /* Body-less lists are ok. */
373 man_nmsg(m, n, MANDOCERR_NOBODY);
376 if (MAN_HEAD == n->type)
384 man_nmsg(m, n, MANDOCERR_ARGSLOST);
398 assert( ! (MAN_ELINE & m->flags));
399 if (MAN_BLINE & m->flags) {
400 man_nmsg(m, n, MANDOCERR_SYNTLINESCOPE);
416 free(m->meta.source);
420 free(m->meta.rawdate);
422 m->meta.title = m->meta.vol = m->meta.rawdate =
423 m->meta.msec = m->meta.source = NULL;
426 /* ->TITLE<- MSEC DATE SOURCE VOL */
430 m->meta.title = mandoc_strdup(n->string);
432 /* TITLE ->MSEC<- DATE SOURCE VOL */
436 m->meta.msec = mandoc_strdup(n->string);
438 /* TITLE MSEC ->DATE<- SOURCE VOL */
441 * Try to parse the date. If this works, stash the epoch (this
442 * is optimal because we can reformat it in the canonical form).
443 * If it doesn't parse, isn't specified at all, or is an empty
444 * string, then use the current date.
448 if (n && n->string && *n->string) {
449 m->meta.date = mandoc_a2time
450 (MTIME_ISO_8601, n->string);
451 if (0 == m->meta.date) {
452 man_nmsg(m, n, MANDOCERR_BADDATE);
453 m->meta.rawdate = mandoc_strdup(n->string);
456 m->meta.date = time(NULL);
458 /* TITLE MSEC DATE ->SOURCE<- VOL */
460 if (n && (n = n->next))
461 m->meta.source = mandoc_strdup(n->string);
463 /* TITLE MSEC DATE SOURCE ->VOL<- */
465 if (n && (n = n->next))
466 m->meta.vol = mandoc_strdup(n->string);
469 * Remove the `TH' node after we've processed it for our
472 man_node_delete(m, m->last);
480 if (MAN_LITERAL & m->flags)
481 man_nmsg(m, n, MANDOCERR_SCOPEREP);
483 m->flags |= MAN_LITERAL;
491 if ( ! (MAN_LITERAL & m->flags))
492 man_nmsg(m, n, MANDOCERR_NOSCOPE);
494 m->flags &= ~MAN_LITERAL;
501 static const char * const bsd_versions[] = {
502 "3rd Berkeley Distribution",
503 "4th Berkeley Distribution",
504 "4.2 Berkeley Distribution",
505 "4.3 Berkeley Distribution",
506 "4.4 Berkeley Distribution",
514 if (NULL == n || MAN_TEXT != n->type)
518 if (0 == strcmp(s, "3"))
520 else if (0 == strcmp(s, "4"))
522 else if (0 == strcmp(s, "5"))
524 else if (0 == strcmp(s, "6"))
526 else if (0 == strcmp(s, "7"))
533 free(m->meta.source);
535 m->meta.source = mandoc_strdup(p);
542 static const char * const unix_versions[] = {
546 "System V Release 2",
554 if (NULL == n || MAN_TEXT != n->type)
555 p = unix_versions[0];
558 if (0 == strcmp(s, "3"))
559 p = unix_versions[0];
560 else if (0 == strcmp(s, "4"))
561 p = unix_versions[1];
562 else if (0 == strcmp(s, "5")) {
564 if (nn && MAN_TEXT == nn->type && nn->string[0])
565 p = unix_versions[3];
567 p = unix_versions[2];
569 p = unix_versions[0];
573 free(m->meta.source);
575 m->meta.source = mandoc_strdup(p);