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Annotation of mandoc/man_validate.c, Revision 1.8

1.8     ! kristaps    1: /*     $Id: man_validate.c,v 1.7 2009/04/05 16:34:22 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
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>
                     21: #include <stdarg.h>
                     22: #include <stdlib.h>
                     23:
                     24: #include "libman.h"
                     25:
                     26: /* FIXME: validate text. */
                     27:
                     28: #define        POSTARGS  struct man *m, const struct man_node *n
                     29:
                     30: typedef        int     (*v_post)(POSTARGS);
                     31:
                     32: struct man_valid {
                     33:        v_post   *posts;
                     34: };
                     35:
1.3       kristaps   36: static int       count(const struct man_node *);
1.1       kristaps   37: static int       check_eq0(POSTARGS);
                     38: static int       check_ge1(POSTARGS);
                     39: static int       check_ge2(POSTARGS);
                     40: static int       check_le1(POSTARGS);
                     41: static int       check_le2(POSTARGS);
                     42: static int       check_le5(POSTARGS);
                     43:
                     44: static v_post    posts_le1[] = { check_le1, NULL };
                     45: static v_post    posts_le2[] = { check_le2, NULL };
                     46: static v_post    posts_ge1[] = { check_ge1, NULL };
                     47: static v_post    posts_eq0[] = { check_eq0, NULL };
                     48: static v_post    posts_ge2_le5[] = { check_ge2, check_le5, NULL };
                     49:
                     50: static const struct man_valid man_valids[MAN_MAX] = {
                     51:        { NULL }, /* __ */
                     52:        { posts_ge2_le5 }, /* TH */
                     53:        { posts_ge1 }, /* SH */
                     54:        { posts_ge1 }, /* SS */
1.4       kristaps   55:        { NULL }, /* TP */
1.1       kristaps   56:        { posts_eq0 }, /* LP */
                     57:        { posts_eq0 }, /* PP */
                     58:        { posts_eq0 }, /* P */
                     59:        { posts_le2 }, /* IP */
                     60:        { posts_le1 }, /* HP */
                     61:        { NULL }, /* SM */
                     62:        { NULL }, /* SB */
                     63:        { NULL }, /* BI */
                     64:        { NULL }, /* IB */
                     65:        { NULL }, /* BR */
                     66:        { NULL }, /* RB */
                     67:        { NULL }, /* R */
                     68:        { NULL }, /* B */
                     69:        { NULL }, /* I */
                     70:        { NULL }, /* IR */
1.4       kristaps   71:        { NULL }, /* RI */
1.5       kristaps   72:        { posts_eq0 }, /* br */
1.6       kristaps   73:        { posts_eq0 }, /* na */
1.7       kristaps   74:        { NULL }, /* i */
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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