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      1 /*	$OpenBSD: ctype.h,v 1.19 2005/12/13 00:35:22 millert 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 /* extern __inline is a GNU C extension */
     61 #ifdef __GNUC__
     62 #define	__CTYPE_INLINE	extern __inline
     63 #else
     64 #define	__CTYPE_INLINE	static __inline
     65 #endif
     66 
     67 #if defined(__GNUC__) || defined(_ANSI_LIBRARY) || defined(lint)
     68 int	isalnum(int);
     69 int	isalpha(int);
     70 int	iscntrl(int);
     71 int	isdigit(int);
     72 int	isgraph(int);
     73 int	islower(int);
     74 int	isprint(int);
     75 int	ispunct(int);
     76 int	isspace(int);
     77 int	isupper(int);
     78 int	isxdigit(int);
     79 int	tolower(int);
     80 int	toupper(int);
     81 
     82 #if __BSD_VISIBLE || __ISO_C_VISIBLE >= 1999 || __POSIX_VISIBLE > 200112 \
     83     || __XPG_VISIBLE > 600
     84 int	isblank(int);
     85 #endif
     86 
     87 #if __BSD_VISIBLE || __XPG_VISIBLE
     88 int	isascii(int);
     89 int	toascii(int);
     90 int	_tolower(int);
     91 int	_toupper(int);
     92 #endif /* __BSD_VISIBLE || __XPG_VISIBLE */
     93 
     94 #endif /* __GNUC__ || _ANSI_LIBRARY || lint */
     95 
     96 #if defined(NDEBUG)
     97 
     98 __CTYPE_INLINE int isalnum(int c)
     99 {
    100 	return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & (_U|_L|_N)));
    101 }
    102 
    103 __CTYPE_INLINE int isalpha(int c)
    104 {
    105 	return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & (_U|_L)));
    106 }
    107 
    108 __CTYPE_INLINE int iscntrl(int c)
    109 {
    110 	return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & _C));
    111 }
    112 
    113 __CTYPE_INLINE int isdigit(int c)
    114 {
    115 	return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & _N));
    116 }
    117 
    118 __CTYPE_INLINE int isgraph(int c)
    119 {
    120 	return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & (_P|_U|_L|_N)));
    121 }
    122 
    123 __CTYPE_INLINE int islower(int c)
    124 {
    125 	return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & _L));
    126 }
    127 
    128 __CTYPE_INLINE int isprint(int c)
    129 {
    130 	return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & (_P|_U|_L|_N|_B)));
    131 }
    132 
    133 __CTYPE_INLINE int ispunct(int c)
    134 {
    135 	return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & _P));
    136 }
    137 
    138 __CTYPE_INLINE int isspace(int c)
    139 {
    140 	return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & _S));
    141 }
    142 
    143 __CTYPE_INLINE int isupper(int c)
    144 {
    145 	return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & _U));
    146 }
    147 
    148 __CTYPE_INLINE int isxdigit(int c)
    149 {
    150 	return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & (_N|_X)));
    151 }
    152 
    153 __CTYPE_INLINE int tolower(int c)
    154 {
    155 	if ((unsigned int)c > 255)
    156 		return (c);
    157 	return ((_tolower_tab_ + 1)[c]);
    158 }
    159 
    160 __CTYPE_INLINE int toupper(int c)
    161 {
    162 	if ((unsigned int)c > 255)
    163 		return (c);
    164 	return ((_toupper_tab_ + 1)[c]);
    165 }
    166 
    167 #if __BSD_VISIBLE || __ISO_C_VISIBLE >= 1999 || __POSIX_VISIBLE > 200112 \
    168     || __XPG_VISIBLE > 600
    169 __CTYPE_INLINE int isblank(int c)
    170 {
    171 	return (c == ' ' || c == '\t');
    172 }
    173 #endif
    174 
    175 #if __BSD_VISIBLE || __XPG_VISIBLE
    176 __CTYPE_INLINE int isascii(int c)
    177 {
    178 	return ((unsigned int)c <= 0177);
    179 }
    180 
    181 __CTYPE_INLINE int toascii(int c)
    182 {
    183 	return (c & 0177);
    184 }
    185 
    186 __CTYPE_INLINE int _tolower(int c)
    187 {
    188 	return (c - 'A' + 'a');
    189 }
    190 
    191 __CTYPE_INLINE int _toupper(int c)
    192 {
    193 	return (c - 'a' + 'A');
    194 }
    195 #endif /* __BSD_VISIBLE || __XPG_VISIBLE */
    196 
    197 #endif /* NDEBUG */
    198 
    199 __END_DECLS
    200 
    201 #undef __CTYPE_INLINE
    202 
    203 #endif /* !_CTYPE_H_ */
    204