2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1982, 1988, 1991, 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.
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
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31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
47 return (c == ' ' || (c >= '\t' && c <= '\r'));
53 return ((c & ~0x7f) == 0);
59 return (c >= 'A' && c <= 'Z');
65 return (c >= 'a' && c <= 'z');
71 return (isupper(c) || islower(c));
77 return (c >= '0' && c <= '9');
83 return (isdigit(c) || (c >= 'A' && c <= 'F') || (c >= 'a' && c <= 'f'));
89 return (c >= ' ' && c <= '~');
95 return (c - 0x20 * ((c >= 'a') && (c <= 'z')));
101 return (c + 0x20 * ((c >= 'A') && (c <= 'Z')));
105 #endif /* !_SYS_CTYPE_H_ */