Annotation of mandoc/man_validate.c, Revision 1.17
1.17 ! kristaps 1: /* $Id: man_validate.c,v 1.16 2009/07/24 20:22:24 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 */
1.1 kristaps 86: };
87:
88:
89: int
1.17 ! kristaps 90: man_valid_pre(struct man *m, const struct man_node *n)
! 91: {
! 92: v_check *cp;
! 93:
! 94: if (MAN_TEXT == n->type)
! 95: return(1);
! 96: if (MAN_ROOT == n->type)
! 97: return(1);
! 98:
! 99: if (NULL == (cp = man_valids[n->tok].pres))
! 100: return(1);
! 101: for ( ; *cp; cp++)
! 102: if ( ! (*cp)(m, n))
! 103: return(0);
! 104: return(1);
! 105: }
! 106:
! 107:
! 108: int
1.1 kristaps 109: man_valid_post(struct man *m)
110: {
1.17 ! kristaps 111: v_check *cp;
1.1 kristaps 112:
113: if (MAN_VALID & m->last->flags)
114: return(1);
115: m->last->flags |= MAN_VALID;
116:
117: switch (m->last->type) {
118: case (MAN_TEXT):
1.11 kristaps 119: return(check_text(m, m->last));
1.1 kristaps 120: case (MAN_ROOT):
1.14 kristaps 121: return(check_root(m, m->last));
1.1 kristaps 122: default:
123: break;
124: }
125:
126: if (NULL == (cp = man_valids[m->last->tok].posts))
127: return(1);
128: for ( ; *cp; cp++)
129: if ( ! (*cp)(m, m->last))
130: return(0);
131:
132: return(1);
133: }
134:
135:
1.11 kristaps 136: static int
1.17 ! kristaps 137: check_root(CHKARGS)
1.14 kristaps 138: {
1.17 ! kristaps 139:
! 140: /* XXX - make this into a warning? */
! 141: if (MAN_BLINE & m->flags)
! 142: return(man_nerr(m, n, WEXITSCOPE));
! 143: /* XXX - make this into a warning? */
! 144: if (MAN_ELINE & m->flags)
! 145: return(man_nerr(m, n, WEXITSCOPE));
! 146:
1.14 kristaps 147: if (NULL == m->first->child)
148: return(man_nerr(m, n, WNODATA));
149: if (NULL == m->meta.title)
150: return(man_nerr(m, n, WNOTITLE));
151:
152: return(1);
153: }
154:
155:
156: static int
1.17 ! kristaps 157: check_text(CHKARGS)
1.11 kristaps 158: {
159: const char *p;
1.15 kristaps 160: int pos, c;
1.11 kristaps 161:
162: assert(n->string);
163:
164: for (p = n->string, pos = n->pos + 1; *p; p++, pos++) {
1.15 kristaps 165: if ('\\' == *p) {
166: c = mandoc_special(p);
167: if (c) {
168: p += c - 1;
169: pos += c - 1;
170: continue;
171: }
172: if ( ! (MAN_IGN_ESCAPE & m->pflags))
173: return(man_perr(m, n->line, pos, WESCAPE));
174: if ( ! man_pwarn(m, n->line, pos, WESCAPE))
175: return(0);
176: continue;
177: }
178:
179: if ('\t' == *p || isprint((u_char)*p))
1.11 kristaps 180: continue;
181:
182: if (MAN_IGN_CHARS & m->pflags)
1.12 kristaps 183: return(man_pwarn(m, n->line, pos, WNPRINT));
184: return(man_perr(m, n->line, pos, WNPRINT));
1.11 kristaps 185: }
186:
187: return(1);
1.1 kristaps 188: }
189:
190:
191: #define INEQ_DEFINE(x, ineq, name) \
192: static int \
1.17 ! kristaps 193: check_##name(CHKARGS) \
1.1 kristaps 194: { \
1.11 kristaps 195: if (n->nchild ineq (x)) \
1.1 kristaps 196: return(1); \
1.4 kristaps 197: return(man_verr(m, n->line, n->pos, \
1.1 kristaps 198: "expected line arguments %s %d, have %d", \
1.11 kristaps 199: #ineq, (x), n->nchild)); \
1.1 kristaps 200: }
201:
202: INEQ_DEFINE(0, ==, eq0)
1.16 kristaps 203: INEQ_DEFINE(1, ==, eq1)
1.1 kristaps 204: INEQ_DEFINE(2, >=, ge2)
205: INEQ_DEFINE(5, <=, le5)
206:
1.16 kristaps 207:
208: static int
1.17 ! kristaps 209: check_sp(CHKARGS)
1.16 kristaps 210: {
211: long lval;
212: char *ep, *buf;
213:
1.17 ! kristaps 214: if (NULL == n->child)
1.16 kristaps 215: return(1);
216: else if ( ! check_eq1(m, n))
217: return(0);
218:
1.17 ! kristaps 219: assert(MAN_TEXT == n->child->type);
! 220: buf = n->child->string;
1.16 kristaps 221: assert(buf);
222:
223: /* From OpenBSD's strtol(3). */
1.17 ! kristaps 224:
1.16 kristaps 225: errno = 0;
226: lval = strtol(buf, &ep, 10);
227: if (buf[0] == '\0' || *ep != '\0')
1.17 ! kristaps 228: return(man_nerr(m, n->child, WNUMFMT));
1.16 kristaps 229:
230: if ((errno == ERANGE && (lval == LONG_MAX || lval == LONG_MIN)) ||
231: (lval > INT_MAX || lval < 0))
1.17 ! kristaps 232: return(man_nerr(m, n->child, WNUMFMT));
! 233:
! 234: return(1);
! 235: }
! 236:
! 237:
! 238: static int
! 239: check_sec(CHKARGS)
! 240: {
1.16 kristaps 241:
1.17 ! kristaps 242: if (MAN_BODY == n->type && 0 == n->nchild)
! 243: return(man_nwarn(m, n, WBODYARGS));
! 244: if (MAN_HEAD == n->type && 0 == n->nchild)
! 245: return(man_nerr(m, n, WHEADARGS));
1.16 kristaps 246: return(1);
247: }
1.17 ! kristaps 248:
! 249:
! 250: static int
! 251: check_par(CHKARGS)
! 252: {
! 253:
! 254: if (MAN_BODY == n->type)
! 255: switch (n->tok) {
! 256: case (MAN_IP):
! 257: /* FALLTHROUGH */
! 258: case (MAN_HP):
! 259: /* FALLTHROUGH */
! 260: case (MAN_TP):
! 261: /* Body-less lists are ok. */
! 262: break;
! 263: default:
! 264: if (n->nchild)
! 265: break;
! 266: return(man_nwarn(m, n, WBODYARGS));
! 267: }
! 268: if (MAN_HEAD == n->type)
! 269: switch (n->tok) {
! 270: case (MAN_PP):
! 271: /* FALLTHROUGH */
! 272: case (MAN_P):
! 273: /* FALLTHROUGH */
! 274: case (MAN_LP):
! 275: if (0 == n->nchild)
! 276: break;
! 277: return(man_nwarn(m, n, WNHEADARGS));
! 278: default:
! 279: if (n->nchild)
! 280: break;
! 281: return(man_nwarn(m, n, WHEADARGS));
! 282: }
! 283:
! 284: return(1);
! 285: }
! 286:
! 287:
! 288: static int
! 289: check_eline(CHKARGS)
! 290: {
! 291:
! 292: if ( ! (MAN_ELINE & m->flags))
! 293: return(1);
! 294: return(man_nerr(m, n, WLNSCOPE));
! 295: }
! 296:
! 297:
! 298: static int
! 299: check_bline(CHKARGS)
! 300: {
! 301:
! 302: if ( ! (MAN_BLINE & m->flags))
! 303: return(1);
! 304: return(man_nerr(m, n, WLNSCOPE));
! 305: }
! 306:
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