Annotation of mandoc/roff_validate.c, Revision 1.20
1.20 ! schwarze 1: /* $Id: roff_validate.c,v 1.19 2020/02/27 01:43:52 schwarze Exp $ */
1.1 schwarze 2: /*
1.19 schwarze 3: * Copyright (c) 2010, 2017, 2018, 2020 Ingo Schwarze <schwarze@openbsd.org>
1.1 schwarze 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 above
7: * copyright notice and this permission notice appear in all copies.
8: *
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.
16: */
1.20 ! schwarze 17: #include "config.h"
! 18:
1.1 schwarze 19: #include <sys/types.h>
20:
21: #include <assert.h>
1.13 schwarze 22: #include <stdio.h>
1.10 schwarze 23: #include <string.h>
1.1 schwarze 24:
25: #include "mandoc.h"
26: #include "roff.h"
27: #include "libmandoc.h"
28: #include "roff_int.h"
29:
30: #define ROFF_VALID_ARGS struct roff_man *man, struct roff_node *n
31:
32: typedef void (*roff_valid_fp)(ROFF_VALID_ARGS);
33:
1.11 schwarze 34: static void roff_valid_br(ROFF_VALID_ARGS);
1.16 schwarze 35: static void roff_valid_fi(ROFF_VALID_ARGS);
1.1 schwarze 36: static void roff_valid_ft(ROFF_VALID_ARGS);
1.16 schwarze 37: static void roff_valid_nf(ROFF_VALID_ARGS);
1.11 schwarze 38: static void roff_valid_sp(ROFF_VALID_ARGS);
1.1 schwarze 39:
40: static const roff_valid_fp roff_valids[ROFF_MAX] = {
1.11 schwarze 41: roff_valid_br, /* br */
1.7 schwarze 42: NULL, /* ce */
1.16 schwarze 43: roff_valid_fi, /* fi */
1.1 schwarze 44: roff_valid_ft, /* ft */
1.2 schwarze 45: NULL, /* ll */
1.6 schwarze 46: NULL, /* mc */
1.16 schwarze 47: roff_valid_nf, /* nf */
1.9 schwarze 48: NULL, /* po */
1.8 schwarze 49: NULL, /* rj */
1.11 schwarze 50: roff_valid_sp, /* sp */
1.4 schwarze 51: NULL, /* ta */
1.5 schwarze 52: NULL, /* ti */
1.1 schwarze 53: };
54:
55:
56: void
57: roff_validate(struct roff_man *man)
58: {
59: struct roff_node *n;
60:
61: n = man->last;
62: assert(n->tok < ROFF_MAX);
63: if (roff_valids[n->tok] != NULL)
64: (*roff_valids[n->tok])(man, n);
65: }
66:
67: static void
1.11 schwarze 68: roff_valid_br(ROFF_VALID_ARGS)
69: {
70: struct roff_node *np;
71:
1.12 schwarze 72: if (n->next != NULL && n->next->type == ROFFT_TEXT &&
73: *n->next->string == ' ') {
1.14 schwarze 74: mandoc_msg(MANDOCERR_PAR_SKIP, n->line, n->pos,
1.12 schwarze 75: "br before text line with leading blank");
76: roff_node_delete(man, n);
77: return;
78: }
1.11 schwarze 79:
1.19 schwarze 80: if ((np = roff_node_prev(n)) == NULL)
1.11 schwarze 81: return;
82:
83: switch (np->tok) {
84: case ROFF_br:
85: case ROFF_sp:
86: case MDOC_Pp:
1.14 schwarze 87: mandoc_msg(MANDOCERR_PAR_SKIP,
1.11 schwarze 88: n->line, n->pos, "br after %s", roff_name[np->tok]);
89: roff_node_delete(man, n);
90: break;
91: default:
92: break;
93: }
94: }
95:
96: static void
1.16 schwarze 97: roff_valid_fi(ROFF_VALID_ARGS)
98: {
1.17 schwarze 99: if ((n->flags & NODE_NOFILL) == 0)
1.16 schwarze 100: mandoc_msg(MANDOCERR_FI_SKIP, n->line, n->pos, "fi");
101: }
102:
103: static void
1.1 schwarze 104: roff_valid_ft(ROFF_VALID_ARGS)
105: {
1.10 schwarze 106: const char *cp;
1.1 schwarze 107:
108: if (n->child == NULL) {
109: man->next = ROFF_NEXT_CHILD;
110: roff_word_alloc(man, n->line, n->pos, "P");
111: man->last = n;
112: return;
113: }
114:
115: cp = n->child->string;
1.15 schwarze 116: if (mandoc_font(cp, (int)strlen(cp)) != ESCAPE_ERROR)
117: return;
1.14 schwarze 118: mandoc_msg(MANDOCERR_FT_BAD, n->line, n->pos, "ft %s", cp);
1.1 schwarze 119: roff_node_delete(man, n);
1.11 schwarze 120: }
121:
122: static void
1.16 schwarze 123: roff_valid_nf(ROFF_VALID_ARGS)
124: {
1.18 schwarze 125: if (n->flags & NODE_NOFILL)
1.16 schwarze 126: mandoc_msg(MANDOCERR_NF_SKIP, n->line, n->pos, "nf");
127: }
128:
129: static void
1.11 schwarze 130: roff_valid_sp(ROFF_VALID_ARGS)
131: {
132: struct roff_node *np;
133:
1.19 schwarze 134: if ((np = roff_node_prev(n)) == NULL)
1.11 schwarze 135: return;
136:
137: switch (np->tok) {
138: case ROFF_br:
1.14 schwarze 139: mandoc_msg(MANDOCERR_PAR_SKIP,
1.11 schwarze 140: np->line, np->pos, "br before sp");
141: roff_node_delete(man, np);
142: break;
143: case MDOC_Pp:
1.14 schwarze 144: mandoc_msg(MANDOCERR_PAR_SKIP,
1.11 schwarze 145: n->line, n->pos, "sp after Pp");
146: roff_node_delete(man, n);
147: break;
148: default:
149: break;
150: }
1.1 schwarze 151: }
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