Annotation of mandoc/man_validate.c, Revision 1.5
1.5 ! kristaps 1: /* $Id: man_validate.c,v 1.4 2009/03/26 14:38:11 kristaps Exp $ */
1.1 kristaps 2: /*
3: * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@openbsd.org>
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 <sys/types.h>
20:
21: #include <assert.h>
22: #include <ctype.h>
23: #include <stdarg.h>
24: #include <stdlib.h>
25:
26: #include "libman.h"
27:
28: /* FIXME: validate text. */
29:
30: #define POSTARGS struct man *m, const struct man_node *n
31:
32: typedef int (*v_post)(POSTARGS);
33:
34: struct man_valid {
35: v_post *posts;
36: };
37:
1.3 kristaps 38: static int count(const struct man_node *);
1.1 kristaps 39: static int check_eq0(POSTARGS);
40: static int check_ge1(POSTARGS);
41: static int check_ge2(POSTARGS);
42: static int check_le1(POSTARGS);
43: static int check_le2(POSTARGS);
44: static int check_le5(POSTARGS);
45:
46: static v_post posts_le1[] = { check_le1, NULL };
47: static v_post posts_le2[] = { check_le2, NULL };
48: static v_post posts_ge1[] = { check_ge1, NULL };
49: static v_post posts_eq0[] = { check_eq0, NULL };
50: static v_post posts_ge2_le5[] = { check_ge2, check_le5, NULL };
51:
52: static const struct man_valid man_valids[MAN_MAX] = {
53: { NULL }, /* __ */
54: { posts_ge2_le5 }, /* TH */
55: { posts_ge1 }, /* SH */
56: { posts_ge1 }, /* SS */
1.4 kristaps 57: { NULL }, /* TP */
1.1 kristaps 58: { posts_eq0 }, /* LP */
59: { posts_eq0 }, /* PP */
60: { posts_eq0 }, /* P */
61: { posts_le2 }, /* IP */
62: { posts_le1 }, /* HP */
63: { NULL }, /* SM */
64: { NULL }, /* SB */
65: { NULL }, /* BI */
66: { NULL }, /* IB */
67: { NULL }, /* BR */
68: { NULL }, /* RB */
69: { NULL }, /* R */
70: { NULL }, /* B */
71: { NULL }, /* I */
72: { NULL }, /* IR */
1.4 kristaps 73: { NULL }, /* RI */
1.5 ! kristaps 74: { posts_eq0 }, /* br */
1.1 kristaps 75: };
76:
77:
78: int
79: man_valid_post(struct man *m)
80: {
81: v_post *cp;
82:
83: if (MAN_VALID & m->last->flags)
84: return(1);
85: m->last->flags |= MAN_VALID;
86:
87: switch (m->last->type) {
88: case (MAN_TEXT):
89: /* FALLTHROUGH */
90: case (MAN_ROOT):
91: return(1);
92: default:
93: break;
94: }
95:
96: if (NULL == (cp = man_valids[m->last->tok].posts))
97: return(1);
98: for ( ; *cp; cp++)
99: if ( ! (*cp)(m, m->last))
100: return(0);
101:
102: return(1);
103: }
104:
105:
106: static inline int
1.3 kristaps 107: count(const struct man_node *n)
1.1 kristaps 108: {
109: int i;
110:
111: for (i = 0; n; n = n->next, i++)
112: /* Loop. */ ;
113: return(i);
114: }
115:
116:
117: #define INEQ_DEFINE(x, ineq, name) \
118: static int \
119: check_##name(POSTARGS) \
120: { \
121: int c; \
1.3 kristaps 122: if ((c = count(n->child)) ineq (x)) \
1.1 kristaps 123: return(1); \
1.4 kristaps 124: return(man_verr(m, n->line, n->pos, \
1.1 kristaps 125: "expected line arguments %s %d, have %d", \
126: #ineq, (x), c)); \
127: }
128:
129: INEQ_DEFINE(0, ==, eq0)
130: INEQ_DEFINE(1, >=, ge1)
131: INEQ_DEFINE(2, >=, ge2)
132: INEQ_DEFINE(1, <=, le1)
133: INEQ_DEFINE(2, <=, le2)
134: INEQ_DEFINE(5, <=, le5)
135:
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