Annotation of mandoc/roff_validate.c, Revision 1.15
1.15 ! schwarze 1: /* $Id: roff_validate.c,v 1.14 2018/12/14 05:18:03 schwarze Exp $ */
1.1 schwarze 2: /*
1.10 schwarze 3: * Copyright (c) 2010, 2017, 2018 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: */
17: #include <sys/types.h>
18:
19: #include <assert.h>
1.13 schwarze 20: #include <stdio.h>
1.10 schwarze 21: #include <string.h>
1.1 schwarze 22:
23: #include "mandoc.h"
24: #include "roff.h"
25: #include "libmandoc.h"
26: #include "roff_int.h"
27:
28: #define ROFF_VALID_ARGS struct roff_man *man, struct roff_node *n
29:
30: typedef void (*roff_valid_fp)(ROFF_VALID_ARGS);
31:
1.11 schwarze 32: static void roff_valid_br(ROFF_VALID_ARGS);
1.1 schwarze 33: static void roff_valid_ft(ROFF_VALID_ARGS);
1.11 schwarze 34: static void roff_valid_sp(ROFF_VALID_ARGS);
1.1 schwarze 35:
36: static const roff_valid_fp roff_valids[ROFF_MAX] = {
1.11 schwarze 37: roff_valid_br, /* br */
1.7 schwarze 38: NULL, /* ce */
1.1 schwarze 39: roff_valid_ft, /* ft */
1.2 schwarze 40: NULL, /* ll */
1.6 schwarze 41: NULL, /* mc */
1.9 schwarze 42: NULL, /* po */
1.8 schwarze 43: NULL, /* rj */
1.11 schwarze 44: roff_valid_sp, /* sp */
1.4 schwarze 45: NULL, /* ta */
1.5 schwarze 46: NULL, /* ti */
1.1 schwarze 47: };
48:
49:
50: void
51: roff_validate(struct roff_man *man)
52: {
53: struct roff_node *n;
54:
55: n = man->last;
56: assert(n->tok < ROFF_MAX);
57: if (roff_valids[n->tok] != NULL)
58: (*roff_valids[n->tok])(man, n);
59: }
60:
61: static void
1.11 schwarze 62: roff_valid_br(ROFF_VALID_ARGS)
63: {
64: struct roff_node *np;
65:
66: if (n->child != NULL)
1.14 schwarze 67: mandoc_msg(MANDOCERR_ARG_SKIP,
1.11 schwarze 68: n->line, n->pos, "br %s", n->child->string);
1.12 schwarze 69:
70: if (n->next != NULL && n->next->type == ROFFT_TEXT &&
71: *n->next->string == ' ') {
1.14 schwarze 72: mandoc_msg(MANDOCERR_PAR_SKIP, n->line, n->pos,
1.12 schwarze 73: "br before text line with leading blank");
74: roff_node_delete(man, n);
75: return;
76: }
1.11 schwarze 77:
78: if ((np = n->prev) == NULL)
79: return;
80:
81: switch (np->tok) {
82: case ROFF_br:
83: case ROFF_sp:
84: case MDOC_Pp:
1.14 schwarze 85: mandoc_msg(MANDOCERR_PAR_SKIP,
1.11 schwarze 86: n->line, n->pos, "br after %s", roff_name[np->tok]);
87: roff_node_delete(man, n);
88: break;
89: default:
90: break;
91: }
92: }
93:
94: static void
1.1 schwarze 95: roff_valid_ft(ROFF_VALID_ARGS)
96: {
1.10 schwarze 97: const char *cp;
1.1 schwarze 98:
99: if (n->child == NULL) {
100: man->next = ROFF_NEXT_CHILD;
101: roff_word_alloc(man, n->line, n->pos, "P");
102: man->last = n;
103: return;
104: }
105:
106: cp = n->child->string;
1.15 ! schwarze 107: if (mandoc_font(cp, (int)strlen(cp)) != ESCAPE_ERROR)
! 108: return;
1.14 schwarze 109: mandoc_msg(MANDOCERR_FT_BAD, n->line, n->pos, "ft %s", cp);
1.1 schwarze 110: roff_node_delete(man, n);
1.11 schwarze 111: }
112:
113: static void
114: roff_valid_sp(ROFF_VALID_ARGS)
115: {
116: struct roff_node *np;
117:
118: if (n->child != NULL && n->child->next != NULL)
1.14 schwarze 119: mandoc_msg(MANDOCERR_ARG_EXCESS,
1.11 schwarze 120: n->child->next->line, n->child->next->pos,
121: "sp ... %s", n->child->next->string);
122:
123: if ((np = n->prev) == NULL)
124: return;
125:
126: switch (np->tok) {
127: case ROFF_br:
1.14 schwarze 128: mandoc_msg(MANDOCERR_PAR_SKIP,
1.11 schwarze 129: np->line, np->pos, "br before sp");
130: roff_node_delete(man, np);
131: break;
132: case MDOC_Pp:
1.14 schwarze 133: mandoc_msg(MANDOCERR_PAR_SKIP,
1.11 schwarze 134: n->line, n->pos, "sp after Pp");
135: roff_node_delete(man, n);
136: break;
137: default:
138: break;
139: }
1.1 schwarze 140: }
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