Annotation of mandoc/roff_validate.c, Revision 1.12
1.12 ! schwarze 1: /* $Id: roff_validate.c,v 1.11 2018/12/04 02:53:51 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>
20: #include <stddef.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)
67: mandoc_vmsg(MANDOCERR_ARG_SKIP, man->parse,
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 == ' ') {
! 72: mandoc_msg(MANDOCERR_PAR_SKIP, man->parse, n->line, n->pos,
! 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:
85: mandoc_vmsg(MANDOCERR_PAR_SKIP, man->parse,
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;
107: switch (*cp) {
108: case '1':
109: case '2':
110: case '3':
111: case '4':
112: case 'I':
113: case 'P':
114: case 'R':
115: if (cp[1] == '\0')
116: return;
117: break;
118: case 'B':
119: if (cp[1] == '\0' || (cp[1] == 'I' && cp[2] == '\0'))
120: return;
121: break;
122: case 'C':
1.10 schwarze 123: if (cp[1] != '\0' && cp[2] == '\0' &&
124: strchr("BIRW", cp[1]) != NULL)
1.1 schwarze 125: return;
126: break;
127: default:
128: break;
129: }
130:
131: mandoc_vmsg(MANDOCERR_FT_BAD, man->parse,
132: n->line, n->pos, "ft %s", cp);
133: roff_node_delete(man, n);
1.11 schwarze 134: }
135:
136: static void
137: roff_valid_sp(ROFF_VALID_ARGS)
138: {
139: struct roff_node *np;
140:
141: if (n->child != NULL && n->child->next != NULL)
142: mandoc_vmsg(MANDOCERR_ARG_EXCESS, man->parse,
143: n->child->next->line, n->child->next->pos,
144: "sp ... %s", n->child->next->string);
145:
146: if ((np = n->prev) == NULL)
147: return;
148:
149: switch (np->tok) {
150: case ROFF_br:
151: mandoc_msg(MANDOCERR_PAR_SKIP, man->parse,
152: np->line, np->pos, "br before sp");
153: roff_node_delete(man, np);
154: break;
155: case MDOC_Pp:
156: mandoc_msg(MANDOCERR_PAR_SKIP, man->parse,
157: n->line, n->pos, "sp after Pp");
158: roff_node_delete(man, n);
159: break;
160: default:
161: break;
162: }
1.1 schwarze 163: }
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