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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 #  if defined(__GNUC_STDC_INLINE__) || defined(__cplusplus) || defined(__cplusplus)
     63 #define	__CTYPE_INLINE	extern __inline __attribute__((__gnu_inline__))
     64 #  else
     65 #define	__CTYPE_INLINE	extern __inline
     66 #  endif
     67 #else
     68 #define	__CTYPE_INLINE	static __inline
     69 #endif
     70 
     71 #if defined(__GNUC__) || defined(_ANSI_LIBRARY) || defined(lint)
     72 int	isalnum(int);
     73 int	isalpha(int);
     74 int	iscntrl(int);
     75 int	isdigit(int);
     76 int	isgraph(int);
     77 int	islower(int);
     78 int	isprint(int);
     79 int	ispunct(int);
     80 int	isspace(int);
     81 int	isupper(int);
     82 int	isxdigit(int);
     83 int	tolower(int);
     84 int	toupper(int);
     85 
     86 #if __BSD_VISIBLE || __ISO_C_VISIBLE >= 1999 || __POSIX_VISIBLE > 200112 \
     87     || __XPG_VISIBLE > 600
     88 int	isblank(int);
     89 #endif
     90 
     91 #if __BSD_VISIBLE || __XPG_VISIBLE
     92 int	isascii(int);
     93 int	toascii(int);
     94 int	_tolower(int);
     95 int	_toupper(int);
     96 #endif /* __BSD_VISIBLE || __XPG_VISIBLE */
     97 
     98 #endif /* __GNUC__ || _ANSI_LIBRARY || lint */
     99 
    100 #if defined(NDEBUG)
    101 
    102 __CTYPE_INLINE int isalnum(int c)
    103 {
    104 	return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & (_U|_L|_N)));
    105 }
    106 
    107 __CTYPE_INLINE int isalpha(int c)
    108 {
    109 	return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & (_U|_L)));
    110 }
    111 
    112 __CTYPE_INLINE int iscntrl(int c)
    113 {
    114 	return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & _C));
    115 }
    116 
    117 __CTYPE_INLINE int isdigit(int c)
    118 {
    119 	return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & _N));
    120 }
    121 
    122 __CTYPE_INLINE int isgraph(int c)
    123 {
    124 	return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & (_P|_U|_L|_N)));
    125 }
    126 
    127 __CTYPE_INLINE int islower(int c)
    128 {
    129 	return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & _L));
    130 }
    131 
    132 __CTYPE_INLINE int isprint(int c)
    133 {
    134 	return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & (_P|_U|_L|_N|_B)));
    135 }
    136 
    137 __CTYPE_INLINE int ispunct(int c)
    138 {
    139 	return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & _P));
    140 }
    141 
    142 __CTYPE_INLINE int isspace(int c)
    143 {
    144 	return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & _S));
    145 }
    146 
    147 __CTYPE_INLINE int isupper(int c)
    148 {
    149 	return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & _U));
    150 }
    151 
    152 __CTYPE_INLINE int isxdigit(int c)
    153 {
    154 	return (c == -1 ? 0 : ((_ctype_ + 1)[(unsigned char)c] & (_N|_X)));
    155 }
    156 
    157 __CTYPE_INLINE int tolower(int c)
    158 {
    159 	if ((unsigned int)c > 255)
    160 		return (c);
    161 	return ((_tolower_tab_ + 1)[c]);
    162 }
    163 
    164 __CTYPE_INLINE int toupper(int c)
    165 {
    166 	if ((unsigned int)c > 255)
    167 		return (c);
    168 	return ((_toupper_tab_ + 1)[c]);
    169 }
    170 
    171 #if __BSD_VISIBLE || __ISO_C_VISIBLE >= 1999 || __POSIX_VISIBLE > 200112 \
    172     || __XPG_VISIBLE > 600
    173 __CTYPE_INLINE int isblank(int c)
    174 {
    175 	return (c == ' ' || c == '\t');
    176 }
    177 #endif
    178 
    179 #if __BSD_VISIBLE || __XPG_VISIBLE
    180 __CTYPE_INLINE int isascii(int c)
    181 {
    182 	return ((unsigned int)c <= 0177);
    183 }
    184 
    185 __CTYPE_INLINE int toascii(int c)
    186 {
    187 	return (c & 0177);
    188 }
    189 
    190 __CTYPE_INLINE int _tolower(int c)
    191 {
    192 	return (c - 'A' + 'a');
    193 }
    194 
    195 __CTYPE_INLINE int _toupper(int c)
    196 {
    197 	return (c - 'a' + 'A');
    198 }
    199 #endif /* __BSD_VISIBLE || __XPG_VISIBLE */
    200 
    201 #endif /* NDEBUG */
    202 
    203 __END_DECLS
    204 
    205 #undef __CTYPE_INLINE
    206 
    207 #endif /* !_CTYPE_H_ */
    208