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ctype.h revision 1.24 
      1 /*	$NetBSD: ctype.h,v 1.24 2003/08/07 09:44:09 agc 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 __P ((int));
     61 int	isalpha __P ((int));
     62 int	iscntrl __P ((int));
     63 int	isdigit __P ((int));
     64 int	isgraph __P ((int));
     65 int	islower __P ((int));
     66 int	isprint __P ((int));
     67 int	ispunct __P ((int));
     68 int	isspace __P ((int));
     69 int	isupper __P ((int));
     70 int	isxdigit __P ((int));
     71 int	tolower __P ((int));
     72 int	toupper __P ((int));
     73 
     74 #if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
     75 int	isascii __P ((int));
     76 int	toascii __P ((int));
     77 int	_tolower __P ((int));
     78 int	_toupper __P ((int));
     79 #endif
     80 
     81 #if defined(_ISO_C99_SOURCE) || (_POSIX_C_SOURCE - 0) > 200112L || \
     82     (_XOPEN_SOURCE - 0) > 600 || defined(_NETBSD_SOURCE)
     83 int	isblank __P ((int));
     84 #endif
     85 __END_DECLS
     86 
     87 #define	isdigit(c)	((int)((_ctype_ + 1)[(int)(c)] & _N))
     88 #define	islower(c)	((int)((_ctype_ + 1)[(int)(c)] & _L))
     89 #define	isspace(c)	((int)((_ctype_ + 1)[(int)(c)] & _S))
     90 #define	ispunct(c)	((int)((_ctype_ + 1)[(int)(c)] & _P))
     91 #define	isupper(c)	((int)((_ctype_ + 1)[(int)(c)] & _U))
     92 #define	isalpha(c)	((int)((_ctype_ + 1)[(int)(c)] & (_U|_L)))
     93 #define	isxdigit(c)	((int)((_ctype_ + 1)[(int)(c)] & (_N|_X)))
     94 #define	isalnum(c)	((int)((_ctype_ + 1)[(int)(c)] & (_U|_L|_N)))
     95 #define	isprint(c)	((int)((_ctype_ + 1)[(int)(c)] & (_P|_U|_L|_N|_B)))
     96 #define	isgraph(c)	((int)((_ctype_ + 1)[(int)(c)] & (_P|_U|_L|_N)))
     97 #define	iscntrl(c)	((int)((_ctype_ + 1)[(int)(c)] & _C))
     98 #define	tolower(c)	((int)((_tolower_tab_ + 1)[(int)(c)]))
     99 #define	toupper(c)	((int)((_toupper_tab_ + 1)[(int)(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 #if notyet
    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 #define isblank(c)	((int)((_ctype_ + 1)[(int)(c)] & _B))
    116 #endif
    117 #endif
    118 
    119 #ifdef _CTYPE_PRIVATE
    120 #include <machine/limits.h>	/* for CHAR_BIT */
    121 
    122 #define _CTYPE_NUM_CHARS	(1 << CHAR_BIT)
    123 
    124 #define _CTYPE_ID	 	"BSDCTYPE"
    125 #define _CTYPE_REV		2
    126 
    127 extern const u_int8_t _C_ctype_[];
    128 extern const int16_t _C_toupper_[];
    129 extern const int16_t _C_tolower_[];
    130 #endif
    131 
    132 #endif /* !_CTYPE_H_ */
    133