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[unix-history] / include / ctype.h
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1/*
2 * Copyright (c) 1989 The Regents of the University of California.
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
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * @(#)ctype.h 5.3 (Berkeley) 4/3/91
34 */
35
36#ifndef _CTYPE_H_
37#define _CTYPE_H_
38
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39#include <sys/cdefs.h>
40
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41#define _U 0x01
42#define _L 0x02
43#define _N 0x04
44#define _S 0x08
45#define _P 0x10
46#define _C 0x20
47#define _X 0x40
48#define _B 0x80
49
50extern char _ctype_[];
51
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52__BEGIN_DECLS
53int isdigit __P((int));
54int islower __P((int));
55int isspace __P((int));
56int ispunkt __P((int));
57int isupper __P((int));
58int isalpha __P((int));
59int isxdigit __P((int));
60int isalnum __P((int));
61int isprint __P((int));
62int isgraph __P((int));
63int iscntrl __P((int));
64int toupper __P((int));
65int tolower __P((int));
66__END_DECLS
67
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68#define isdigit(c) ((_ctype_ + 1)[c] & _N)
69#define islower(c) ((_ctype_ + 1)[c] & _L)
70#define isspace(c) ((_ctype_ + 1)[c] & _S)
71#define ispunct(c) ((_ctype_ + 1)[c] & _P)
72#define isupper(c) ((_ctype_ + 1)[c] & _U)
73#define isalpha(c) ((_ctype_ + 1)[c] & (_U|_L))
74#define isxdigit(c) ((_ctype_ + 1)[c] & (_N|_X))
75#define isalnum(c) ((_ctype_ + 1)[c] & (_U|_L|_N))
76#define isprint(c) ((_ctype_ + 1)[c] & (_P|_U|_L|_N|_B))
77#define isgraph(c) ((_ctype_ + 1)[c] & (_P|_U|_L|_N))
78#define iscntrl(c) ((_ctype_ + 1)[c] & _C)
79#define isascii(c) ((unsigned)(c) <= 0177)
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80#define toascii(c) ((c) & 0177)
81
82#endif /* !_CTYPE_H_ */