Annotation of mandoc/man_validate.c, Revision 1.1
1.1 ! kristaps 1: /* $Id: validate.c,v 1.93 2009/03/23 14:22:11 kristaps Exp $ */
! 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:
! 38: static int count(POSTARGS);
! 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 */
! 57: { posts_le1 }, /* TP */
! 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 */
! 73: };
! 74:
! 75:
! 76: int
! 77: man_valid_post(struct man *m)
! 78: {
! 79: v_post *cp;
! 80:
! 81: if (MAN_VALID & m->last->flags)
! 82: return(1);
! 83:
! 84: m->last->flags |= MAN_VALID;
! 85:
! 86: switch (m->last->type) {
! 87: case (MAN_TEXT):
! 88: /* FALLTHROUGH */
! 89: case (MAN_ROOT):
! 90: return(1);
! 91: default:
! 92: break;
! 93: }
! 94:
! 95: if (NULL == (cp = man_valids[m->last->tok].posts))
! 96: return(1);
! 97: for ( ; *cp; cp++)
! 98: if ( ! (*cp)(m, m->last))
! 99: return(0);
! 100:
! 101: return(1);
! 102: }
! 103:
! 104:
! 105: static inline int
! 106: count(POSTARGS)
! 107: {
! 108: int i;
! 109:
! 110: for (i = 0; n; n = n->next, i++)
! 111: /* Loop. */ ;
! 112: return(i);
! 113: }
! 114:
! 115:
! 116: #define INEQ_DEFINE(x, ineq, name) \
! 117: static int \
! 118: check_##name(POSTARGS) \
! 119: { \
! 120: int c; \
! 121: if ((c = count(m, n->child)) ineq (x)) \
! 122: return(1); \
! 123: return(man_vwarn(m, n->line, n->pos, \
! 124: "expected line arguments %s %d, have %d", \
! 125: #ineq, (x), c)); \
! 126: }
! 127:
! 128: INEQ_DEFINE(0, ==, eq0)
! 129: INEQ_DEFINE(1, >=, ge1)
! 130: INEQ_DEFINE(2, >=, ge2)
! 131: INEQ_DEFINE(1, <=, le1)
! 132: INEQ_DEFINE(2, <=, le2)
! 133: INEQ_DEFINE(5, <=, le5)
! 134:
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