1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 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. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 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. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * $FreeBSD$ 37 */ 38 39 #ifndef _SYS_CTYPE_H_ 40 #define _SYS_CTYPE_H_ 41 42 #ifdef _KERNEL 43 44 static __inline int 45 isspace(int c) 46 { 47 return (c == ' ' || (c >= '\t' && c <= '\r')); 48 } 49 50 static __inline int 51 isascii(int c) 52 { 53 return ((c & ~0x7f) == 0); 54 } 55 56 static __inline int 57 isupper(int c) 58 { 59 return (c >= 'A' && c <= 'Z'); 60 } 61 62 static __inline int 63 islower(int c) 64 { 65 return (c >= 'a' && c <= 'z'); 66 } 67 68 static __inline int 69 isalpha(int c) 70 { 71 return (isupper(c) || islower(c)); 72 } 73 74 static __inline int 75 isdigit(int c) 76 { 77 return (c >= '0' && c <= '9'); 78 } 79 80 static __inline int 81 isxdigit(int c) 82 { 83 return (isdigit(c) || (c >= 'A' && c <= 'F') || (c >= 'a' && c <= 'f')); 84 } 85 86 static __inline int 87 isprint(int c) 88 { 89 return (c >= ' ' && c <= '~'); 90 } 91 92 static __inline int 93 toupper(int c) 94 { 95 return (c - 0x20 * ((c >= 'a') && (c <= 'z'))); 96 } 97 98 static __inline int 99 tolower(int c) 100 { 101 return (c + 0x20 * ((c >= 'A') && (c <= 'Z'))); 102 } 103 104 #endif 105 #endif /* !_SYS_CTYPE_H_ */ 106