1/***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
9 *
10 * This software is licensed as described in the file COPYING, which
11 * you should have received as part of this distribution. The terms
12 * are also available at https://curl.se/docs/copyright.html.
13 *
14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15 * copies of the Software, and permit persons to whom the Software is
16 * furnished to do so, under the terms of the COPYING file.
17 *
18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19 * KIND, either express or implied.
20 *
21 ***************************************************************************/
22
23#include "curl_setup.h"
24
25#ifndef CURL_DOES_CONVERSIONS
26
27#undef _U
28#define _U (1<<0) /* upper case */
29#undef _L
30#define _L (1<<1) /* lower case */
31#undef _N
32#define _N (1<<2) /* decimal numerical digit */
33#undef _S
34#define _S (1<<3) /* space */
35#undef _P
36#define _P (1<<4) /* punctuation */
37#undef _C
38#define _C (1<<5) /* control */
39#undef _X
40#define _X (1<<6) /* hexadecimal letter */
41#undef _B
42#define _B (1<<7) /* blank */
43
44static const unsigned char ascii[128] = {
45 _C, _C, _C, _C, _C, _C, _C, _C,
46 _C, _C|_S, _C|_S, _C|_S, _C|_S, _C|_S, _C, _C,
47 _C, _C, _C, _C, _C, _C, _C, _C,
48 _C, _C, _C, _C, _C, _C, _C, _C,
49 _S|_B, _P, _P, _P, _P, _P, _P, _P,
50 _P, _P, _P, _P, _P, _P, _P, _P,
51 _N, _N, _N, _N, _N, _N, _N, _N,
52 _N, _N, _P, _P, _P, _P, _P, _P,
53 _P, _U|_X, _U|_X, _U|_X, _U|_X, _U|_X, _U|_X, _U,
54 _U, _U, _U, _U, _U, _U, _U, _U,
55 _U, _U, _U, _U, _U, _U, _U, _U,
56 _U, _U, _U, _P, _P, _P, _P, _P,
57 _P, _L|_X, _L|_X, _L|_X, _L|_X, _L|_X, _L|_X, _L,
58 _L, _L, _L, _L, _L, _L, _L, _L,
59 _L, _L, _L, _L, _L, _L, _L, _L,
60 _L, _L, _L, _P, _P, _P, _P, _C
61};
62
63int Curl_isspace(int c)
64{
65 if((c < 0) || (c >= 0x80))
66 return FALSE;
67 return (ascii[c] & _S);
68}
69
70int Curl_isdigit(int c)
71{
72 if((c < 0) || (c >= 0x80))
73 return FALSE;
74 return (ascii[c] & _N);
75}
76
77int Curl_isalnum(int c)
78{
79 if((c < 0) || (c >= 0x80))
80 return FALSE;
81 return (ascii[c] & (_N|_U|_L));
82}
83
84int Curl_isxdigit(int c)
85{
86 if((c < 0) || (c >= 0x80))
87 return FALSE;
88 return (ascii[c] & (_N|_X));
89}
90
91int Curl_isgraph(int c)
92{
93 if((c < 0) || (c >= 0x80) || (c == ' '))
94 return FALSE;
95 return (ascii[c] & (_N|_X|_U|_L|_P|_S));
96}
97
98int Curl_isprint(int c)
99{
100 if((c < 0) || (c >= 0x80))
101 return FALSE;
102 return (ascii[c] & (_N|_X|_U|_L|_P|_S));
103}
104
105int Curl_isalpha(int c)
106{
107 if((c < 0) || (c >= 0x80))
108 return FALSE;
109 return (ascii[c] & (_U|_L));
110}
111
112int Curl_isupper(int c)
113{
114 if((c < 0) || (c >= 0x80))
115 return FALSE;
116 return (ascii[c] & (_U));
117}
118
119int Curl_islower(int c)
120{
121 if((c < 0) || (c >= 0x80))
122 return FALSE;
123 return (ascii[c] & (_L));
124}
125
126int Curl_iscntrl(int c)
127{
128 if((c < 0) || (c >= 0x80))
129 return FALSE;
130 return (ascii[c] & (_C));
131}
132
133#endif /* !CURL_DOES_CONVERSIONS */
134