include/ctype.h

   1 /*      $OpenBSD: ctype.h,v 1.22 2010/10/01 20:10:24 guenther Exp $     */
   2 /*      $NetBSD: ctype.h,v 1.14 1994/10/26 00:55:47 cgd Exp $   */
   3
   4 /*
   5  * Copyright (c) 1989 The Regents of the University of California.
   6  * All rights reserved.
   7  * (c) UNIX System Laboratories, Inc.
   8  * All or some portions of this file are derived from material licensed
   9  * to the University of California by American Telephone and Telegraph
  10  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
  11  * the permission of UNIX System Laboratories, Inc.
  12  *
  13  * Redistribution and use in source and binary forms, with or without
  14  * modification, are permitted provided that the following conditions
  15  * are met:
  16  * 1. Redistributions of source code must retain the above copyright
  17  *    notice, this list of conditions and the following disclaimer.
  18  * 2. Redistributions in binary form must reproduce the above copyright
  19  *    notice, this list of conditions and the following disclaimer in the
  20  *    documentation and/or other materials provided with the distribution.
  21  * 3. Neither the name of the University nor the names of its contributors
  22  *    may be used to endorse or promote products derived from this software
  23  *    without specific prior written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  35  * SUCH DAMAGE.
  36  *
  37  *      @(#)ctype.h     5.3 (Berkeley) 4/3/91
  38  */
  39
  40 #ifndef _CTYPE_H_
  41 #define _CTYPE_H_
  42
  43 #include <sys/cdefs.h>
  44
  45 #define _U      0x01
  46 #define _L      0x02
  47 #define _N      0x04
  48 #define _S      0x08
  49 #define _P      0x10
  50 #define _C      0x20
  51 #define _X      0x40
  52 #define _B      0x80
  53
  54 __BEGIN_DECLS
  55
  56 extern const char       *_ctype_;
  57 extern const short      *_tolower_tab_;
  58 extern const short      *_toupper_tab_;
  59
  60 #if defined(__GNUC__) || defined(_ANSI_LIBRARY) || defined(lint)
  61 int     isalnum(int);
  62 int     isalpha(int);
  63 int     iscntrl(int);
  64 int     isdigit(int);
  65 int     isgraph(int);
  66 int     islower(int);
  67 int     isprint(int);
  68 int     ispunct(int);
  69 int     isspace(int);
  70 int     isupper(int);
  71 int     isxdigit(int);
  72 int     tolower(int);
  73 int     toupper(int);
  74
  75 #if __BSD_VISIBLE || __ISO_C_VISIBLE >= 1999 || __POSIX_VISIBLE > 200112 \
  76     || __XPG_VISIBLE > 600
  77 int     isblank(int);
  78 #endif
  79
  80 #if __BSD_VISIBLE || __XPG_VISIBLE
  81 int     isascii(int);
  82 int     toascii(int);
  83 int     _tolower(int);
  84 int     _toupper(int);
  85 #endif /* __BSD_VISIBLE || __XPG_VISIBLE */
  86
  87 #endif /* __GNUC__ || _ANSI_LIBRARY || lint */
  88
  89 #if !defined(_ANSI_LIBRARY) && !defined(lint)
  90
  91 __only_inline int isalnum(int c)
  92 {
  93         return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & (_U|_L|_N)));
  94 }
  95
  96 __only_inline int isalpha(int c)
  97 {
  98         return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & (_U|_L)));
  99 }
 100
 101 __only_inline int iscntrl(int c)
 102 {
 103         return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & _C));
 104 }
 105
 106 __only_inline int isdigit(int c)
 107 {
 108         return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & _N));
 109 }
 110
 111 __only_inline int isgraph(int c)
 112 {
 113         return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & (_P|_U|_L|_N)));
 114 }
 115
 116 __only_inline int islower(int c)
 117 {
 118         return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & _L));
 119 }
 120
 121 __only_inline int isprint(int c)
 122 {
 123         return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & (_P|_U|_L|_N|_B)));
 124 }
 125
 126 __only_inline int ispunct(int c)
 127 {
 128         return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & _P));
 129 }
 130
 131 __only_inline int isspace(int c)
 132 {
 133         return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & _S));
 134 }
 135
 136 __only_inline int isupper(int c)
 137 {
 138         return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & _U));
 139 }
 140
 141 __only_inline int isxdigit(int c)
 142 {
 143         return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & (_N|_X)));
 144 }
 145
 146 __only_inline int tolower(int c)
 147 {
 148         if ((unsigned int)c > 255)
 149                 return (c);
 150         return ((_tolower_tab_ + 1)[c]);
 151 }
 152
 153 __only_inline int toupper(int c)
 154 {
 155         if ((unsigned int)c > 255)
 156                 return (c);
 157         return ((_toupper_tab_ + 1)[c]);
 158 }
 159
 160 #if __BSD_VISIBLE || __ISO_C_VISIBLE >= 1999 || __POSIX_VISIBLE > 200112 \
 161     || __XPG_VISIBLE > 600
 162 __only_inline int isblank(int c)
 163 {
 164         return (c == ' ' || c == '\t');
 165 }
 166 #endif
 167
 168 #if __BSD_VISIBLE || __XPG_VISIBLE
 169 __only_inline int isascii(int c)
 170 {
 171         return ((unsigned int)c <= 0177);
 172 }
 173
 174 __only_inline int toascii(int c)
 175 {
 176         return (c & 0177);
 177 }
 178
 179 __only_inline int _tolower(int c)
 180 {
 181         return (c - 'A' + 'a');
 182 }
 183
 184 __only_inline int _toupper(int c)
 185 {
 186         return (c - 'a' + 'A');
 187 }
 188 #endif /* __BSD_VISIBLE || __XPG_VISIBLE */
 189
 190 #endif /* !_ANSI_LIBRARY && !lint */
 191
 192 __END_DECLS
 193
 194 #endif /* !_CTYPE_H_ */