include/ctype.h

   1 /*      $NetBSD: ctype.h,v 1.28 2005/04/15 23:46:07 rillig Exp $        */
   2
   3 /*
   4  * Copyright (c) 1989 The Regents of the University of California.
   5  * 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  *      @(#)ctype.h     5.3 (Berkeley) 4/3/91
  37  */
  38
  39 #ifndef _CTYPE_H_
  40 #define _CTYPE_H_
  41
  42 #include <sys/cdefs.h>
  43 #include <sys/featuretest.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 extern const unsigned char      *_ctype_;
  55 extern const short      *_tolower_tab_;
  56 extern const short      *_toupper_tab_;
  57
  58
  59 __BEGIN_DECLS
  60 int     isalnum(int);
  61 int     isalpha(int);
  62 int     iscntrl(int);
  63 int     isdigit(int);
  64 int     isgraph(int);
  65 int     islower(int);
  66 int     isprint(int);
  67 int     ispunct(int);
  68 int     isspace(int);
  69 int     isupper(int);
  70 int     isxdigit(int);
  71 int     tolower(int);
  72 int     toupper(int);
  73
  74 #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
  75 int     isascii(int);
  76 int     toascii(int);
  77 int     _tolower(int);
  78 int     _toupper(int);
  79 #endif
  80
  81 #if defined(_ISOC99_SOURCE) || (_POSIX_C_SOURCE - 0) > 200112L || \
  82     (_XOPEN_SOURCE - 0) > 600 || defined(_NETBSD_SOURCE)
  83 int     isblank(int);
  84 #endif
  85 __END_DECLS
  86
  87 #define isdigit(c)      ((int)((_ctype_ + 1)[(c)] & _N))
  88 #define islower(c)      ((int)((_ctype_ + 1)[(c)] & _L))
  89 #define isspace(c)      ((int)((_ctype_ + 1)[(c)] & _S))
  90 #define ispunct(c)      ((int)((_ctype_ + 1)[(c)] & _P))
  91 #define isupper(c)      ((int)((_ctype_ + 1)[(c)] & _U))
  92 #define isalpha(c)      ((int)((_ctype_ + 1)[(c)] & (_U|_L)))
  93 #define isxdigit(c)     ((int)((_ctype_ + 1)[(c)] & (_N|_X)))
  94 #define isalnum(c)      ((int)((_ctype_ + 1)[(c)] & (_U|_L|_N)))
  95 #define isprint(c)      ((int)((_ctype_ + 1)[(c)] & (_P|_U|_L|_N|_B)))
  96 #define isgraph(c)      ((int)((_ctype_ + 1)[(c)] & (_P|_U|_L|_N)))
  97 #define iscntrl(c)      ((int)((_ctype_ + 1)[(c)] & _C))
  98 #define tolower(c)      ((int)((_tolower_tab_ + 1)[(c)]))
  99 #define toupper(c)      ((int)((_toupper_tab_ + 1)[(c)]))
 100
 101 #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
 102 #define isascii(c)      ((unsigned)(c) <= 0177)
 103 #define toascii(c)      ((c) & 0177)
 104 #define _tolower(c)     ((c) - 'A' + 'a')
 105 #define _toupper(c)     ((c) - 'a' + 'A')
 106 #endif
 107
 108 #if defined(_ISO_C99_SOURCE) || (_POSIX_C_SOURCE - 0) > 200112L || \
 109     (_XOPEN_SOURCE - 0) > 600 || defined(_NETBSD_SOURCE)
 110
 111 /*
 112  * isblank() is implemented as C function, due to insufficient bitwidth in
 113  * _ctype_.  Note that _B does not mean isblank - it means isprint && !isgraph.
 114  */
 115 #if 0
 116 #define isblank(c)      ((int)((_ctype_ + 1)[(c)] & _B))
 117 #endif
 118
 119 #endif
 120
 121 #ifdef _CTYPE_PRIVATE
 122 #include <machine/limits.h>     /* for CHAR_BIT */
 123
 124 #define _CTYPE_NUM_CHARS        (1 << CHAR_BIT)
 125
 126 #define _CTYPE_ID               "BSDCTYPE"
 127 #define _CTYPE_REV              2
 128
 129 extern const uint8_t _C_ctype_[];
 130 extern const int16_t _C_toupper_[];
 131 extern const int16_t _C_tolower_[];
 132 #endif
 133
 134 #endif /* !_CTYPE_H_ */