1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1989, 1993
5 * The Regents of the University of California. All rights reserved.
6 * (c) UNIX System Laboratories, Inc.
7 * All or some portions of this file are derived from material licensed
8 * to the University of California by American Telephone and Telegraph
9 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
10 * the permission of UNIX System Laboratories, Inc.
11 *
12 * This code is derived from software contributed to Berkeley by
13 * Paul Borman at Krystal Technologies.
14 *
15 * Redistribution and use in source and binary forms, with or without
16 * modification, are permitted provided that the following conditions
17 * are met:
18 * 1. Redistributions of source code must retain the above copyright
19 * notice, this list of conditions and the following disclaimer.
20 * 2. Redistributions in binary form must reproduce the above copyright
21 * notice, this list of conditions and the following disclaimer in the
22 * documentation and/or other materials provided with the distribution.
23 * 3. Neither the name of the University nor the names of its contributors
24 * may be used to endorse or promote products derived from this software
25 * without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * SUCH DAMAGE.
38 */
39
40#ifndef _CTYPE_H_
41#define _CTYPE_H_
42
43#include <sys/cdefs.h>
44#include <sys/_types.h>
45#include <_ctype.h>
46
47__BEGIN_DECLS
48int isalnum(int);
49int isalpha(int);
50int iscntrl(int);
51int isdigit(int);
52int isgraph(int);
53int islower(int);
54int isprint(int);
55int ispunct(int);
56int isspace(int);
57int isupper(int);
58int isxdigit(int);
59int tolower(int);
60int toupper(int);
61
62#if __XSI_VISIBLE
63int isascii(int);
64int toascii(int);
65#endif
66
67#if __ISO_C_VISIBLE >= 1999
68int isblank(int);
69#endif
70
71#if __BSD_VISIBLE
72int digittoint(int);
73int ishexnumber(int);
74int isideogram(int);
75int isnumber(int);
76int isphonogram(int);
77int isrune(int);
78int isspecial(int);
79#endif
80
81#if __POSIX_VISIBLE >= 200809 || defined(_XLOCALE_H_)
82#include <xlocale/_ctype.h>
83#endif
84__END_DECLS
85
86#ifndef __cplusplus
87#define isalnum(c) __sbistype((c), _CTYPE_A|_CTYPE_D|_CTYPE_N)
88#define isalpha(c) __sbistype((c), _CTYPE_A)
89#define iscntrl(c) __sbistype((c), _CTYPE_C)
90#define isdigit(c) __sbistype((c), _CTYPE_D)
91#define isgraph(c) __sbistype((c), _CTYPE_G)
92#define islower(c) __sbistype((c), _CTYPE_L)
93#define isprint(c) __sbistype((c), _CTYPE_R)
94#define ispunct(c) __sbistype((c), _CTYPE_P)
95#define isspace(c) __sbistype((c), _CTYPE_S)
96#define isupper(c) __sbistype((c), _CTYPE_U)
97#define isxdigit(c) __sbistype((c), _CTYPE_X)
98#define tolower(c) __sbtolower(c)
99#define toupper(c) __sbtoupper(c)
100#endif /* !__cplusplus */
101
102#if __XSI_VISIBLE
103/*
104 * POSIX.1-2001 specifies _tolower() and _toupper() to be macros equivalent to
105 * tolower() and toupper() respectively, minus extra checking to ensure that
106 * the argument is a lower or uppercase letter respectively. We've chosen to
107 * implement these macros with the same error checking as tolower() and
108 * toupper() since this doesn't violate the specification itself, only its
109 * intent. We purposely leave _tolower() and _toupper() undocumented to
110 * discourage their use.
111 *
112 * XXX isascii() and toascii() should similarly be undocumented.
113 */
114#define _tolower(c) __sbtolower(c)
115#define _toupper(c) __sbtoupper(c)
116#define isascii(c) (((c) & ~0x7F) == 0)
117#define toascii(c) ((c) & 0x7F)
118#endif
119
120#if __ISO_C_VISIBLE >= 1999 && !defined(__cplusplus)
121#define isblank(c) __sbistype((c), _CTYPE_B)
122#endif
123
124#if __BSD_VISIBLE
125#define digittoint(c) __sbmaskrune((c), 0xFF)
126#define ishexnumber(c) __sbistype((c), _CTYPE_X)
127#define isideogram(c) __sbistype((c), _CTYPE_I)
128#define isnumber(c) __sbistype((c), _CTYPE_D|_CTYPE_N)
129#define isphonogram(c) __sbistype((c), _CTYPE_Q)
130#define isrune(c) __sbistype((c), 0xFFFFFF00L)
131#define isspecial(c) __sbistype((c), _CTYPE_T)
132#endif
133
134#endif /* !_CTYPE_H_ */