Annotation of mandoc/man_validate.c, Revision 1.20
1.20 ! kristaps 1: /* $Id: man_validate.c,v 1.19 2009/08/19 09:14:50 kristaps Exp $ */
1.1 kristaps 2: /*
1.9 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
1.8 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: */
17: #include <sys/types.h>
18:
19: #include <assert.h>
20: #include <ctype.h>
1.16 kristaps 21: #include <errno.h>
22: #include <limits.h>
1.1 kristaps 23: #include <stdarg.h>
24: #include <stdlib.h>
25:
26: #include "libman.h"
1.15 kristaps 27: #include "libmandoc.h"
1.1 kristaps 28:
1.17 kristaps 29: #define CHKARGS struct man *m, const struct man_node *n
1.1 kristaps 30:
1.17 kristaps 31: typedef int (*v_check)(CHKARGS);
1.1 kristaps 32:
33: struct man_valid {
1.17 kristaps 34: v_check *pres;
35: v_check *posts;
1.1 kristaps 36: };
37:
1.17 kristaps 38: static int check_bline(CHKARGS);
39: static int check_eline(CHKARGS);
40: static int check_eq0(CHKARGS);
41: static int check_eq1(CHKARGS);
42: static int check_ge2(CHKARGS);
43: static int check_le5(CHKARGS);
44: static int check_par(CHKARGS);
45: static int check_root(CHKARGS);
46: static int check_sec(CHKARGS);
47: static int check_sp(CHKARGS);
48: static int check_text(CHKARGS);
49:
50: static v_check posts_eq0[] = { check_eq0, NULL };
51: static v_check posts_ge2_le5[] = { check_ge2, check_le5, NULL };
52: static v_check posts_par[] = { check_par, NULL };
53: static v_check posts_sec[] = { check_sec, NULL };
54: static v_check posts_sp[] = { check_sp, NULL };
55: static v_check pres_eline[] = { check_eline, NULL };
56: static v_check pres_bline[] = { check_bline, NULL };
1.1 kristaps 57:
58: static const struct man_valid man_valids[MAN_MAX] = {
1.17 kristaps 59: { pres_bline, posts_eq0 }, /* br */
60: { pres_bline, posts_ge2_le5 }, /* TH */
61: { pres_bline, posts_sec }, /* SH */
62: { pres_bline, posts_sec }, /* SS */
63: { pres_bline, posts_par }, /* TP */
64: { pres_bline, posts_par }, /* LP */
65: { pres_bline, posts_par }, /* PP */
66: { pres_bline, posts_par }, /* P */
67: { pres_bline, posts_par }, /* IP */
68: { pres_bline, posts_par }, /* HP */
69: { pres_eline, NULL }, /* SM */
70: { pres_eline, NULL }, /* SB */
71: { NULL, NULL }, /* BI */
72: { NULL, NULL }, /* IB */
73: { NULL, NULL }, /* BR */
74: { NULL, NULL }, /* RB */
75: { pres_eline, NULL }, /* R */
76: { pres_eline, NULL }, /* B */
77: { pres_eline, NULL }, /* I */
78: { NULL, NULL }, /* IR */
79: { NULL, NULL }, /* RI */
80: { pres_bline, posts_eq0 }, /* na */
81: { NULL, NULL }, /* i */
82: { pres_bline, posts_sp }, /* sp */
83: { pres_bline, posts_eq0 }, /* nf */
84: { pres_bline, posts_eq0 }, /* fi */
85: { NULL, NULL }, /* r */
1.19 kristaps 86: { NULL, NULL }, /* RE */
87: { NULL, NULL }, /* RS */
1.1 kristaps 88: };
89:
90:
91: int
1.17 kristaps 92: man_valid_pre(struct man *m, const struct man_node *n)
93: {
94: v_check *cp;
95:
96: if (MAN_TEXT == n->type)
97: return(1);
98: if (MAN_ROOT == n->type)
99: return(1);
100:
101: if (NULL == (cp = man_valids[n->tok].pres))
102: return(1);
103: for ( ; *cp; cp++)
104: if ( ! (*cp)(m, n))
105: return(0);
106: return(1);
107: }
108:
109:
110: int
1.1 kristaps 111: man_valid_post(struct man *m)
112: {
1.17 kristaps 113: v_check *cp;
1.1 kristaps 114:
115: if (MAN_VALID & m->last->flags)
116: return(1);
117: m->last->flags |= MAN_VALID;
118:
119: switch (m->last->type) {
120: case (MAN_TEXT):
1.11 kristaps 121: return(check_text(m, m->last));
1.1 kristaps 122: case (MAN_ROOT):
1.14 kristaps 123: return(check_root(m, m->last));
1.1 kristaps 124: default:
125: break;
126: }
127:
128: if (NULL == (cp = man_valids[m->last->tok].posts))
129: return(1);
130: for ( ; *cp; cp++)
131: if ( ! (*cp)(m, m->last))
132: return(0);
133:
134: return(1);
135: }
136:
137:
1.11 kristaps 138: static int
1.17 kristaps 139: check_root(CHKARGS)
1.14 kristaps 140: {
1.17 kristaps 141:
142: /* XXX - make this into a warning? */
143: if (MAN_BLINE & m->flags)
144: return(man_nerr(m, n, WEXITSCOPE));
145: /* XXX - make this into a warning? */
146: if (MAN_ELINE & m->flags)
147: return(man_nerr(m, n, WEXITSCOPE));
148:
1.14 kristaps 149: if (NULL == m->first->child)
150: return(man_nerr(m, n, WNODATA));
151: if (NULL == m->meta.title)
152: return(man_nerr(m, n, WNOTITLE));
153:
154: return(1);
155: }
156:
157:
158: static int
1.17 kristaps 159: check_text(CHKARGS)
1.11 kristaps 160: {
161: const char *p;
1.15 kristaps 162: int pos, c;
1.11 kristaps 163:
164: assert(n->string);
165:
166: for (p = n->string, pos = n->pos + 1; *p; p++, pos++) {
1.15 kristaps 167: if ('\\' == *p) {
168: c = mandoc_special(p);
169: if (c) {
170: p += c - 1;
171: pos += c - 1;
172: continue;
173: }
174: if ( ! (MAN_IGN_ESCAPE & m->pflags))
175: return(man_perr(m, n->line, pos, WESCAPE));
176: if ( ! man_pwarn(m, n->line, pos, WESCAPE))
177: return(0);
178: continue;
179: }
180:
181: if ('\t' == *p || isprint((u_char)*p))
1.11 kristaps 182: continue;
183:
184: if (MAN_IGN_CHARS & m->pflags)
1.12 kristaps 185: return(man_pwarn(m, n->line, pos, WNPRINT));
186: return(man_perr(m, n->line, pos, WNPRINT));
1.11 kristaps 187: }
188:
189: return(1);
1.1 kristaps 190: }
191:
192:
193: #define INEQ_DEFINE(x, ineq, name) \
194: static int \
1.17 kristaps 195: check_##name(CHKARGS) \
1.1 kristaps 196: { \
1.11 kristaps 197: if (n->nchild ineq (x)) \
1.1 kristaps 198: return(1); \
1.4 kristaps 199: return(man_verr(m, n->line, n->pos, \
1.1 kristaps 200: "expected line arguments %s %d, have %d", \
1.11 kristaps 201: #ineq, (x), n->nchild)); \
1.1 kristaps 202: }
203:
204: INEQ_DEFINE(0, ==, eq0)
1.16 kristaps 205: INEQ_DEFINE(1, ==, eq1)
1.1 kristaps 206: INEQ_DEFINE(2, >=, ge2)
207: INEQ_DEFINE(5, <=, le5)
208:
1.16 kristaps 209:
210: static int
1.17 kristaps 211: check_sp(CHKARGS)
1.16 kristaps 212: {
213: long lval;
214: char *ep, *buf;
215:
1.17 kristaps 216: if (NULL == n->child)
1.16 kristaps 217: return(1);
218: else if ( ! check_eq1(m, n))
219: return(0);
220:
1.17 kristaps 221: assert(MAN_TEXT == n->child->type);
222: buf = n->child->string;
1.16 kristaps 223: assert(buf);
224:
225: /* From OpenBSD's strtol(3). */
1.17 kristaps 226:
1.16 kristaps 227: errno = 0;
228: lval = strtol(buf, &ep, 10);
229: if (buf[0] == '\0' || *ep != '\0')
1.17 kristaps 230: return(man_nerr(m, n->child, WNUMFMT));
1.16 kristaps 231:
232: if ((errno == ERANGE && (lval == LONG_MAX || lval == LONG_MIN)) ||
233: (lval > INT_MAX || lval < 0))
1.17 kristaps 234: return(man_nerr(m, n->child, WNUMFMT));
235:
236: return(1);
237: }
238:
239:
240: static int
241: check_sec(CHKARGS)
242: {
1.16 kristaps 243:
1.17 kristaps 244: if (MAN_BODY == n->type && 0 == n->nchild)
245: return(man_nwarn(m, n, WBODYARGS));
246: if (MAN_HEAD == n->type && 0 == n->nchild)
247: return(man_nerr(m, n, WHEADARGS));
1.16 kristaps 248: return(1);
249: }
1.17 kristaps 250:
251:
252: static int
253: check_par(CHKARGS)
254: {
255:
256: if (MAN_BODY == n->type)
257: switch (n->tok) {
258: case (MAN_IP):
259: /* FALLTHROUGH */
260: case (MAN_HP):
261: /* FALLTHROUGH */
262: case (MAN_TP):
263: /* Body-less lists are ok. */
264: break;
265: default:
266: if (n->nchild)
267: break;
268: return(man_nwarn(m, n, WBODYARGS));
269: }
270: if (MAN_HEAD == n->type)
271: switch (n->tok) {
272: case (MAN_PP):
273: /* FALLTHROUGH */
274: case (MAN_P):
275: /* FALLTHROUGH */
276: case (MAN_LP):
277: if (0 == n->nchild)
278: break;
279: return(man_nwarn(m, n, WNHEADARGS));
280: default:
281: if (n->nchild)
282: break;
283: return(man_nwarn(m, n, WHEADARGS));
284: }
285:
286: return(1);
287: }
288:
289:
290: static int
291: check_eline(CHKARGS)
292: {
293:
1.18 kristaps 294: if (MAN_ELINE & m->flags)
295: return(man_nerr(m, n, WLNSCOPE));
296: return(1);
1.17 kristaps 297: }
298:
299:
300: static int
301: check_bline(CHKARGS)
302: {
303:
1.18 kristaps 304: if (MAN_BLINE & m->flags)
305: return(man_nerr(m, n, WLNSCOPE));
306: if (MAN_ELINE & m->flags)
307: return(man_nerr(m, n, WLNSCOPE));
308: return(1);
1.17 kristaps 309: }
310:
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