1 /* $Id: roff_validate.c,v 1.20 2020/06/22 19:20:40 schwarze Exp $ */
3 * Copyright (c) 2010, 2017, 2018, 2020 Ingo Schwarze <schwarze@openbsd.org>
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
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.
19 #include <sys/types.h>
27 #include "libmandoc.h"
30 #define ROFF_VALID_ARGS struct roff_man *man, struct roff_node *n
32 typedef void (*roff_valid_fp)(ROFF_VALID_ARGS);
34 static void roff_valid_br(ROFF_VALID_ARGS);
35 static void roff_valid_fi(ROFF_VALID_ARGS);
36 static void roff_valid_ft(ROFF_VALID_ARGS);
37 static void roff_valid_nf(ROFF_VALID_ARGS);
38 static void roff_valid_sp(ROFF_VALID_ARGS);
40 static const roff_valid_fp roff_valids[ROFF_MAX] = {
41 roff_valid_br, /* br */
43 roff_valid_fi, /* fi */
44 roff_valid_ft, /* ft */
47 roff_valid_nf, /* nf */
50 roff_valid_sp, /* sp */
57 roff_validate(struct roff_man *man)
62 assert(n->tok < ROFF_MAX);
63 if (roff_valids[n->tok] != NULL)
64 (*roff_valids[n->tok])(man, n);
68 roff_valid_br(ROFF_VALID_ARGS)
72 if (n->next != NULL && n->next->type == ROFFT_TEXT &&
73 *n->next->string == ' ') {
74 mandoc_msg(MANDOCERR_PAR_SKIP, n->line, n->pos,
75 "br before text line with leading blank");
76 roff_node_delete(man, n);
80 if ((np = roff_node_prev(n)) == NULL)
87 mandoc_msg(MANDOCERR_PAR_SKIP,
88 n->line, n->pos, "br after %s", roff_name[np->tok]);
89 roff_node_delete(man, n);
97 roff_valid_fi(ROFF_VALID_ARGS)
99 if ((n->flags & NODE_NOFILL) == 0)
100 mandoc_msg(MANDOCERR_FI_SKIP, n->line, n->pos, "fi");
104 roff_valid_ft(ROFF_VALID_ARGS)
108 if (n->child == NULL) {
109 man->next = ROFF_NEXT_CHILD;
110 roff_word_alloc(man, n->line, n->pos, "P");
115 cp = n->child->string;
116 if (mandoc_font(cp, (int)strlen(cp)) != ESCAPE_ERROR)
118 mandoc_msg(MANDOCERR_FT_BAD, n->line, n->pos, "ft %s", cp);
119 roff_node_delete(man, n);
123 roff_valid_nf(ROFF_VALID_ARGS)
125 if (n->flags & NODE_NOFILL)
126 mandoc_msg(MANDOCERR_NF_SKIP, n->line, n->pos, "nf");
130 roff_valid_sp(ROFF_VALID_ARGS)
132 struct roff_node *np;
134 if ((np = roff_node_prev(n)) == NULL)
139 mandoc_msg(MANDOCERR_PAR_SKIP,
140 np->line, np->pos, "br before sp");
141 roff_node_delete(man, np);
144 mandoc_msg(MANDOCERR_PAR_SKIP,
145 n->line, n->pos, "sp after Pp");
146 roff_node_delete(man, n);