jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this
9 * list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
22 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include <ctype.h>
28#include <string.h>
29
30extern "C" {
31
32const char _ctype_[256] = {
33 _C, _C, _C, _C, _C, _C, _C, _C,
34 _C, _C | _S, _C | _S, _C | _S, _C | _S, _C | _S, _C, _C,
35 _C, _C, _C, _C, _C, _C, _C, _C,
36 _C, _C, _C, _C, _C, _C, _C, _C,
37 (char)(_S | _B), _P, _P, _P, _P, _P, _P, _P,
38 _P, _P, _P, _P, _P, _P, _P, _P,
39 _N, _N, _N, _N, _N, _N, _N, _N,
40 _N, _N, _P, _P, _P, _P, _P, _P,
41 _P, _U | _X, _U | _X, _U | _X, _U | _X, _U | _X, _U | _X, _U,
42 _U, _U, _U, _U, _U, _U, _U, _U,
43 _U, _U, _U, _U, _U, _U, _U, _U,
44 _U, _U, _U, _P, _P, _P, _P, _P,
45 _P, _L | _X, _L | _X, _L | _X, _L | _X, _L | _X, _L | _X, _L,
46 _L, _L, _L, _L, _L, _L, _L, _L,
47 _L, _L, _L, _L, _L, _L, _L, _L,
48 _L, _L, _L, _P, _P, _P, _P, _C
49};
50
51int tolower(int c)
52{
53 if (c >= 'A' && c <= 'Z')
54 return c | 0x20;
55 return c;
56}
57
58int toupper(int c)
59{
60 if (c >= 'a' && c <= 'z')
61 return c & ~0x20;
62 return c;
63}
64}