1 /* 2 * Copyright (c) 1989 The Regents of the University of California. 3 * All rights reserved. 4 * (c) UNIX System Laboratories, Inc. 5 * All or some portions of this file are derived from material licensed 6 * to the University of California by American Telephone and Telegraph 7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 8 * the permission of UNIX System Laboratories, Inc. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 */ 38 39 #if defined(LIBC_SCCS) && !defined(lint) 40 /*static char *sccsid = "from: @(#)isctype.c 5.2 (Berkeley) 6/1/90";*/ 41 static char *rcsid = "$Id: isctype.c,v 1.12 1994/05/17 04:13:51 cgd Exp $"; 42 #endif /* LIBC_SCCS and not lint */ 43 44 #define _ANSI_LIBRARY 45 #include <ctype.h> 46 47 #undef isalnum 48 int 49 isalnum(c) 50 int c; 51 { 52 return((_ctype_ + 1)[c] & (_U|_L|_N)); 53 } 54 55 #undef isalpha 56 int 57 isalpha(c) 58 int c; 59 { 60 return((_ctype_ + 1)[c] & (_U|_L)); 61 } 62 63 #undef isblank 64 int 65 isblank(c) 66 int c; 67 { 68 return(c == ' ' || c == '\t'); 69 } 70 71 #undef iscntrl 72 int 73 iscntrl(c) 74 int c; 75 { 76 return((_ctype_ + 1)[c] & _C); 77 } 78 79 #undef isdigit 80 int 81 isdigit(c) 82 int c; 83 { 84 return((_ctype_ + 1)[c] & _N); 85 } 86 87 #undef isgraph 88 int 89 isgraph(c) 90 int c; 91 { 92 return((_ctype_ + 1)[c] & (_P|_U|_L|_N)); 93 } 94 95 #undef islower 96 int 97 islower(c) 98 int c; 99 { 100 return((_ctype_ + 1)[c] & _L); 101 } 102 103 #undef isprint 104 int 105 isprint(c) 106 int c; 107 { 108 return((_ctype_ + 1)[c] & (_P|_U|_L|_N|_B)); 109 } 110 111 #undef ispunct 112 int 113 ispunct(c) 114 int c; 115 { 116 return((_ctype_ + 1)[c] & _P); 117 } 118 119 #undef isspace 120 int 121 isspace(c) 122 int c; 123 { 124 return((_ctype_ + 1)[c] & _S); 125 } 126 127 #undef isupper 128 int 129 isupper(c) 130 int c; 131 { 132 return((_ctype_ + 1)[c] & _U); 133 } 134 135 #undef isxdigit 136 int 137 isxdigit(c) 138 int c; 139 { 140 return((_ctype_ + 1)[c] & (_N|_X)); 141 } 142 143 #undef isascii 144 int 145 isascii(c) 146 int c; 147 { 148 return ((unsigned)(c) <= 0177); 149 } 150 151 #undef toascii 152 int 153 toascii(c) 154 int c; 155 { 156 return ((c) & 0177); 157 } 158 159 #undef _toupper 160 int 161 _toupper(c) 162 int c; 163 { 164 return (c - 'a' + 'A'); 165 } 166 167 #undef _tolower 168 int 169 _tolower(c) 170 int c; 171 { 172 return (c - 'A' + 'a'); 173 } 174