Annotation of mandoc/mandoc.c, Revision 1.6
1.6 ! kristaps 1: /* $Id: mandoc.c,v 1.5 2009/10/30 05:58:38 kristaps Exp $ */
1.1 kristaps 2: /*
3: * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
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: */
1.2 kristaps 17: #include <sys/types.h>
18:
1.1 kristaps 19: #include <assert.h>
20: #include <ctype.h>
21: #include <stdlib.h>
1.4 kristaps 22: #include <stdio.h>
23: #include <string.h>
1.1 kristaps 24:
25: #include "libmandoc.h"
26:
27: int
28: mandoc_special(const char *p)
29: {
30: int c;
31:
32: if ('\\' != *p++)
33: return(0);
34:
35: switch (*p) {
36: case ('\\'):
37: /* FALLTHROUGH */
38: case ('\''):
39: /* FALLTHROUGH */
40: case ('`'):
41: /* FALLTHROUGH */
42: case ('q'):
43: /* FALLTHROUGH */
44: case ('-'):
45: /* FALLTHROUGH */
46: case ('~'):
47: /* FALLTHROUGH */
48: case ('^'):
49: /* FALLTHROUGH */
50: case ('%'):
51: /* FALLTHROUGH */
52: case ('0'):
53: /* FALLTHROUGH */
54: case (' '):
55: /* FALLTHROUGH */
56: case ('|'):
57: /* FALLTHROUGH */
58: case ('&'):
59: /* FALLTHROUGH */
60: case ('.'):
61: /* FALLTHROUGH */
62: case (':'):
63: /* FALLTHROUGH */
1.3 kristaps 64: case ('c'):
65: return(2);
1.1 kristaps 66: case ('e'):
67: return(2);
68: case ('f'):
69: if (0 == *++p || ! isgraph((u_char)*p))
70: return(0);
71: return(3);
72: case ('*'):
73: if (0 == *++p || ! isgraph((u_char)*p))
74: return(0);
75: switch (*p) {
76: case ('('):
77: if (0 == *++p || ! isgraph((u_char)*p))
78: return(0);
79: return(4);
80: case ('['):
81: for (c = 3, p++; *p && ']' != *p; p++, c++)
82: if ( ! isgraph((u_char)*p))
83: break;
84: return(*p == ']' ? c : 0);
85: default:
86: break;
87: }
88: return(3);
89: case ('('):
90: if (0 == *++p || ! isgraph((u_char)*p))
91: return(0);
92: if (0 == *++p || ! isgraph((u_char)*p))
93: return(0);
94: return(4);
95: case ('['):
96: break;
97: default:
98: return(0);
99: }
100:
101: for (c = 3, p++; *p && ']' != *p; p++, c++)
102: if ( ! isgraph((u_char)*p))
103: break;
104:
105: return(*p == ']' ? c : 0);
106: }
107:
1.4 kristaps 108:
109: void *
110: mandoc_calloc(size_t num, size_t size)
111: {
112: void *ptr;
113:
114: ptr = calloc(num, size);
115: if (NULL == ptr) {
1.6 ! kristaps 116: perror(NULL);
1.4 kristaps 117: exit(EXIT_FAILURE);
118: }
119:
120: return(ptr);
121: }
122:
123:
124: void *
125: mandoc_malloc(size_t size)
126: {
127: void *ptr;
128:
129: ptr = malloc(size);
130: if (NULL == ptr) {
1.6 ! kristaps 131: perror(NULL);
1.4 kristaps 132: exit(EXIT_FAILURE);
133: }
134:
135: return(ptr);
136: }
137:
138:
139: void *
140: mandoc_realloc(void *ptr, size_t size)
141: {
142:
143: ptr = realloc(ptr, size);
144: if (NULL == ptr) {
1.6 ! kristaps 145: perror(NULL);
1.4 kristaps 146: exit(EXIT_FAILURE);
147: }
148:
149: return(ptr);
150: }
151:
152:
153: char *
154: mandoc_strdup(const char *ptr)
155: {
156: char *p;
157:
158: p = strdup(ptr);
159: if (NULL == p) {
1.6 ! kristaps 160: perror(NULL);
1.4 kristaps 161: exit(EXIT_FAILURE);
162: }
163:
164: return(p);
165: }
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