Annotation of mandoc/man_validate.c, Revision 1.49
1.49 ! schwarze 1: /* $Id: man_validate.c,v 1.48 2010/07/31 23:52:58 schwarze Exp $ */
1.1 kristaps 2: /*
1.48 schwarze 3: * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
1.1 kristaps 4: *
5: * Permission to use, copy, modify, and distribute this software for any
1.8 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: *
1.8 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: */
1.28 kristaps 17: #ifdef HAVE_CONFIG_H
18: #include "config.h"
19: #endif
20:
1.1 kristaps 21: #include <sys/types.h>
22:
23: #include <assert.h>
24: #include <ctype.h>
1.16 kristaps 25: #include <errno.h>
26: #include <limits.h>
1.1 kristaps 27: #include <stdarg.h>
28: #include <stdlib.h>
1.46 kristaps 29: #include <string.h>
1.1 kristaps 30:
1.41 kristaps 31: #include "mandoc.h"
1.1 kristaps 32: #include "libman.h"
1.15 kristaps 33: #include "libmandoc.h"
1.1 kristaps 34:
1.43 kristaps 35: #define CHKARGS struct man *m, struct man_node *n
1.1 kristaps 36:
1.17 kristaps 37: typedef int (*v_check)(CHKARGS);
1.1 kristaps 38:
39: struct man_valid {
1.17 kristaps 40: v_check *pres;
41: v_check *posts;
1.1 kristaps 42: };
43:
1.17 kristaps 44: static int check_bline(CHKARGS);
45: static int check_eq0(CHKARGS);
1.25 kristaps 46: static int check_le1(CHKARGS);
1.17 kristaps 47: static int check_ge2(CHKARGS);
48: static int check_le5(CHKARGS);
49: static int check_par(CHKARGS);
1.23 kristaps 50: static int check_part(CHKARGS);
1.17 kristaps 51: static int check_root(CHKARGS);
52: static int check_sec(CHKARGS);
53: static int check_text(CHKARGS);
1.32 kristaps 54: static int check_title(CHKARGS);
1.17 kristaps 55:
56: static v_check posts_eq0[] = { check_eq0, NULL };
1.32 kristaps 57: static v_check posts_th[] = { check_ge2, check_le5, check_title, NULL };
1.17 kristaps 58: static v_check posts_par[] = { check_par, NULL };
1.23 kristaps 59: static v_check posts_part[] = { check_part, NULL };
1.17 kristaps 60: static v_check posts_sec[] = { check_sec, NULL };
1.30 kristaps 61: static v_check posts_le1[] = { check_le1, NULL };
1.17 kristaps 62: static v_check pres_bline[] = { check_bline, NULL };
1.1 kristaps 63:
64: static const struct man_valid man_valids[MAN_MAX] = {
1.29 kristaps 65: { NULL, posts_eq0 }, /* br */
1.32 kristaps 66: { pres_bline, posts_th }, /* TH */
1.17 kristaps 67: { pres_bline, posts_sec }, /* SH */
68: { pres_bline, posts_sec }, /* SS */
69: { pres_bline, posts_par }, /* TP */
70: { pres_bline, posts_par }, /* LP */
71: { pres_bline, posts_par }, /* PP */
72: { pres_bline, posts_par }, /* P */
73: { pres_bline, posts_par }, /* IP */
74: { pres_bline, posts_par }, /* HP */
1.22 kristaps 75: { NULL, NULL }, /* SM */
76: { NULL, NULL }, /* SB */
1.17 kristaps 77: { NULL, NULL }, /* BI */
78: { NULL, NULL }, /* IB */
79: { NULL, NULL }, /* BR */
80: { NULL, NULL }, /* RB */
1.22 kristaps 81: { NULL, NULL }, /* R */
82: { NULL, NULL }, /* B */
83: { NULL, NULL }, /* I */
1.17 kristaps 84: { NULL, NULL }, /* IR */
85: { NULL, NULL }, /* RI */
1.47 kristaps 86: { NULL, posts_eq0 }, /* na */ /* FIXME: should warn only. */
1.17 kristaps 87: { NULL, NULL }, /* i */
1.47 kristaps 88: { NULL, posts_le1 }, /* sp */ /* FIXME: should warn only. */
1.17 kristaps 89: { pres_bline, posts_eq0 }, /* nf */
90: { pres_bline, posts_eq0 }, /* fi */
91: { NULL, NULL }, /* r */
1.19 kristaps 92: { NULL, NULL }, /* RE */
1.23 kristaps 93: { NULL, posts_part }, /* RS */
1.21 kristaps 94: { NULL, NULL }, /* DT */
1.24 kristaps 95: { NULL, NULL }, /* UC */
1.26 kristaps 96: { NULL, NULL }, /* PD */
1.47 kristaps 97: { NULL, posts_le1 }, /* Sp */ /* FIXME: should warn only. */
98: { pres_bline, posts_le1 }, /* Vb */ /* FIXME: should warn only. */
1.30 kristaps 99: { pres_bline, posts_eq0 }, /* Ve */
1.40 joerg 100: { NULL, NULL }, /* AT */
1.47 kristaps 101: { NULL, NULL }, /* in */
1.1 kristaps 102: };
103:
104:
105: int
1.43 kristaps 106: man_valid_pre(struct man *m, struct man_node *n)
1.17 kristaps 107: {
108: v_check *cp;
109:
110: if (MAN_TEXT == n->type)
111: return(1);
112: if (MAN_ROOT == n->type)
113: return(1);
114:
115: if (NULL == (cp = man_valids[n->tok].pres))
116: return(1);
117: for ( ; *cp; cp++)
118: if ( ! (*cp)(m, n))
119: return(0);
120: return(1);
121: }
122:
123:
124: int
1.1 kristaps 125: man_valid_post(struct man *m)
126: {
1.17 kristaps 127: v_check *cp;
1.1 kristaps 128:
129: if (MAN_VALID & m->last->flags)
130: return(1);
131: m->last->flags |= MAN_VALID;
132:
133: switch (m->last->type) {
134: case (MAN_TEXT):
1.11 kristaps 135: return(check_text(m, m->last));
1.1 kristaps 136: case (MAN_ROOT):
1.14 kristaps 137: return(check_root(m, m->last));
1.1 kristaps 138: default:
139: break;
140: }
141:
142: if (NULL == (cp = man_valids[m->last->tok].posts))
143: return(1);
144: for ( ; *cp; cp++)
145: if ( ! (*cp)(m, m->last))
146: return(0);
147:
148: return(1);
149: }
150:
151:
1.11 kristaps 152: static int
1.17 kristaps 153: check_root(CHKARGS)
1.14 kristaps 154: {
1.17 kristaps 155:
156: if (MAN_BLINE & m->flags)
1.41 kristaps 157: return(man_nmsg(m, n, MANDOCERR_SCOPEEXIT));
1.17 kristaps 158: if (MAN_ELINE & m->flags)
1.41 kristaps 159: return(man_nmsg(m, n, MANDOCERR_SCOPEEXIT));
1.22 kristaps 160:
161: m->flags &= ~MAN_BLINE;
162: m->flags &= ~MAN_ELINE;
1.17 kristaps 163:
1.41 kristaps 164: if (NULL == m->first->child) {
165: man_nmsg(m, n, MANDOCERR_NODOCBODY);
166: return(0);
167: } else if (NULL == m->meta.title) {
168: if ( ! man_nmsg(m, n, MANDOCERR_NOTITLE))
1.34 kristaps 169: return(0);
170: /*
171: * If a title hasn't been set, do so now (by
172: * implication, date and section also aren't set).
173: *
174: * FIXME: this should be in man_action.c.
175: */
176: m->meta.title = mandoc_strdup("unknown");
177: m->meta.date = time(NULL);
1.37 kristaps 178: m->meta.msec = mandoc_strdup("1");
1.34 kristaps 179: }
1.32 kristaps 180:
181: return(1);
182: }
183:
184:
185: static int
186: check_title(CHKARGS)
187: {
188: const char *p;
189:
190: assert(n->child);
1.41 kristaps 191: /* FIXME: is this sufficient? */
192: if ('\0' == *n->child->string) {
193: man_nmsg(m, n, MANDOCERR_SYNTARGCOUNT);
194: return(0);
195: }
1.32 kristaps 196:
197: for (p = n->child->string; '\0' != *p; p++)
198: if (isalpha((u_char)*p) && ! isupper((u_char)*p))
1.41 kristaps 199: if ( ! man_nmsg(m, n, MANDOCERR_UPPERCASE))
1.32 kristaps 200: return(0);
1.14 kristaps 201:
202: return(1);
203: }
204:
205:
206: static int
1.17 kristaps 207: check_text(CHKARGS)
1.11 kristaps 208: {
1.43 kristaps 209: char *p;
1.15 kristaps 210: int pos, c;
1.46 kristaps 211: size_t sz;
1.11 kristaps 212:
1.46 kristaps 213: for (p = n->string, pos = n->pos + 1; *p; p++, pos++) {
214: sz = strcspn(p, "\t\\");
215: p += (int)sz;
216:
217: if ('\0' == *p)
218: break;
219:
220: pos += (int)sz;
1.11 kristaps 221:
1.46 kristaps 222: if ('\t' == *p) {
223: if (MAN_LITERAL & m->flags)
224: continue;
225: if (man_pmsg(m, n->line, pos, MANDOCERR_BADTAB))
1.15 kristaps 226: continue;
1.46 kristaps 227: return(0);
1.15 kristaps 228: }
1.45 kristaps 229:
1.46 kristaps 230: /* Check the special character. */
1.15 kristaps 231:
1.46 kristaps 232: c = mandoc_special(p);
233: if (c) {
234: p += c - 1;
235: pos += c - 1;
1.49 ! schwarze 236: } else
! 237: man_pmsg(m, n->line, pos, MANDOCERR_BADESCAPE);
1.11 kristaps 238: }
239:
240: return(1);
1.1 kristaps 241: }
242:
243:
244: #define INEQ_DEFINE(x, ineq, name) \
245: static int \
1.17 kristaps 246: check_##name(CHKARGS) \
1.1 kristaps 247: { \
1.11 kristaps 248: if (n->nchild ineq (x)) \
1.1 kristaps 249: return(1); \
1.41 kristaps 250: man_vmsg(m, MANDOCERR_SYNTARGCOUNT, n->line, n->pos, \
251: "line arguments %s %d (have %d)", \
252: #ineq, (x), n->nchild); \
253: return(0); \
1.1 kristaps 254: }
255:
256: INEQ_DEFINE(0, ==, eq0)
1.25 kristaps 257: INEQ_DEFINE(1, <=, le1)
1.1 kristaps 258: INEQ_DEFINE(2, >=, ge2)
259: INEQ_DEFINE(5, <=, le5)
260:
1.16 kristaps 261:
262: static int
1.17 kristaps 263: check_sec(CHKARGS)
264: {
1.16 kristaps 265:
1.41 kristaps 266: if (MAN_HEAD == n->type && 0 == n->nchild) {
267: man_nmsg(m, n, MANDOCERR_SYNTARGCOUNT);
268: return(0);
269: } else if (MAN_BODY == n->type && 0 == n->nchild)
270: return(man_nmsg(m, n, MANDOCERR_NOBODY));
271:
1.16 kristaps 272: return(1);
273: }
1.17 kristaps 274:
275:
276: static int
1.23 kristaps 277: check_part(CHKARGS)
278: {
279:
280: if (MAN_BODY == n->type && 0 == n->nchild)
1.41 kristaps 281: return(man_nmsg(m, n, MANDOCERR_NOBODY));
1.23 kristaps 282: return(1);
283: }
284:
285:
286: static int
1.17 kristaps 287: check_par(CHKARGS)
288: {
289:
290: if (MAN_BODY == n->type)
291: switch (n->tok) {
292: case (MAN_IP):
293: /* FALLTHROUGH */
294: case (MAN_HP):
295: /* FALLTHROUGH */
296: case (MAN_TP):
297: /* Body-less lists are ok. */
298: break;
299: default:
300: if (n->nchild)
301: break;
1.41 kristaps 302: return(man_nmsg(m, n, MANDOCERR_NOBODY));
1.17 kristaps 303: }
304: if (MAN_HEAD == n->type)
305: switch (n->tok) {
306: case (MAN_PP):
307: /* FALLTHROUGH */
308: case (MAN_P):
309: /* FALLTHROUGH */
310: case (MAN_LP):
311: if (0 == n->nchild)
312: break;
1.41 kristaps 313: return(man_nmsg(m, n, MANDOCERR_ARGSLOST));
1.17 kristaps 314: default:
315: if (n->nchild)
316: break;
1.41 kristaps 317: return(man_nmsg(m, n, MANDOCERR_NOARGS));
1.17 kristaps 318: }
319:
320: return(1);
321: }
322:
323:
324: static int
325: check_bline(CHKARGS)
326: {
327:
1.22 kristaps 328: assert( ! (MAN_ELINE & m->flags));
1.41 kristaps 329: if (MAN_BLINE & m->flags) {
330: man_nmsg(m, n, MANDOCERR_SYNTLINESCOPE);
331: return(0);
332: }
1.31 kristaps 333:
1.18 kristaps 334: return(1);
1.17 kristaps 335: }
336:
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