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