1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
/* $Id$ */
/*
* Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <assert.h>
#include <ctype.h>
#include <stdlib.h>
#include "libmandoc.h"
int
mandoc_special(const char *p)
{
int c;
if ('\\' != *p++)
return(0);
switch (*p) {
case ('\\'):
/* FALLTHROUGH */
case ('\''):
/* FALLTHROUGH */
case ('`'):
/* FALLTHROUGH */
case ('q'):
/* FALLTHROUGH */
case ('-'):
/* FALLTHROUGH */
case ('~'):
/* FALLTHROUGH */
case ('^'):
/* FALLTHROUGH */
case ('%'):
/* FALLTHROUGH */
case ('0'):
/* FALLTHROUGH */
case (' '):
/* FALLTHROUGH */
case ('|'):
/* FALLTHROUGH */
case ('&'):
/* FALLTHROUGH */
case ('.'):
/* FALLTHROUGH */
case (':'):
/* FALLTHROUGH */
case ('e'):
return(2);
case ('f'):
if (0 == *++p || ! isgraph((u_char)*p))
return(0);
return(3);
case ('*'):
if (0 == *++p || ! isgraph((u_char)*p))
return(0);
switch (*p) {
case ('('):
if (0 == *++p || ! isgraph((u_char)*p))
return(0);
return(4);
case ('['):
for (c = 3, p++; *p && ']' != *p; p++, c++)
if ( ! isgraph((u_char)*p))
break;
return(*p == ']' ? c : 0);
default:
break;
}
return(3);
case ('('):
if (0 == *++p || ! isgraph((u_char)*p))
return(0);
if (0 == *++p || ! isgraph((u_char)*p))
return(0);
return(4);
case ('['):
break;
default:
return(0);
}
for (c = 3, p++; *p && ']' != *p; p++, c++)
if ( ! isgraph((u_char)*p))
break;
return(*p == ']' ? c : 0);
}
|
