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ctype.h
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/
ctype.h
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/*
* Copyright (c) 1989 The Regents of the University of California.
* All rights reserved.
* (c) UNIX System Laboratories, Inc.
* All or some portions of this file are derived from material licensed
* to the University of California by American Telephone and Telegraph
* Co. or Unix System Laboratories, Inc. and are reproduced herein with
* the permission of UNIX System Laboratories, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)ctype.h 5.3 (Berkeley) 4/3/91
* $NetBSD: src/include/ctype.h,v 1.25 2003/10/22 15:51:18 kleink Exp $
* $DragonFly: src/include/ctype.h,v 1.17 2006/03/06 02:54:12 swildner Exp $
*/
#ifndef _CTYPE_H_
#define _CTYPE_H_
#include <sys/cdefs.h>
#include <machine/stdint.h>
#define _CTYPEMASK_U 0x0001
#define _CTYPEMASK_L 0x0002
#define _CTYPEMASK_D 0x0004
#define _CTYPEMASK_S 0x0008
#define _CTYPEMASK_P 0x0010
#define _CTYPEMASK_C 0x0020
#define _CTYPEMASK_X 0x0040
#define _CTYPEMASK_B 0x0080
#define _CTYPEMASK_A 0x0100
#define _CTYPEMASK_G 0x0200
#define _CTYPEMASK_R 0x0400
extern const __uint16_t *__libc_ctype_;
extern const __int16_t *__libc_tolower_tab_;
extern const __int16_t *__libc_toupper_tab_;
__BEGIN_DECLS
int isalnum(int);
int isalpha(int);
int iscntrl(int);
int isdigit(int);
int isgraph(int);
int islower(int);
int isprint(int);
int ispunct(int);
int isspace(int);
int isupper(int);
int isxdigit(int);
int tolower(int);
int toupper(int);
#if defined(__XSI_VISIBLE)
int isascii(int);
int toascii(int);
int _tolower(int);
int _toupper(int);
#endif
#if __ISO_C_VISIBLE >= 1999 || __POSIX_VISIBLE >= 200112L || \
__XSI_VISIBLE >= 600
int isblank(int);
#endif
__END_DECLS
#ifdef _CTYPE_PRIVATE
extern const __uint16_t __libc_C_ctype_[];
extern const __int16_t __libc_C_toupper_[];
extern const __int16_t __libc_C_tolower_[];
#endif
/*
* don't get all wishy washy and try to support architectures where
* char isn't 8 bits. It's 8 bits, period.
*/
#if !defined(_CTYPE_H_DISABLE_MACROS_)
#define _CTYPE_NUM_CHARS (1 << (8*sizeof(char)))
static __inline int
__libc_ctype_index(__uint16_t mask, int c)
{
if (c < -1 || c >= _CTYPE_NUM_CHARS)
return(0); /* XXX maybe assert instead? */
return(__libc_ctype_[c + 1] & mask);
}
static __inline int
__libc_ctype_convert(const __int16_t *array, int c)
{
if (c < -1 || c >= _CTYPE_NUM_CHARS)
return(c); /* XXX maybe assert instead? */
return(array[c + 1]);
}
#ifndef _CTYPE_PRIVATE
#undef _CTYPE_NUM_CHARS
#endif
#define isdigit(c) __libc_ctype_index(_CTYPEMASK_D, c)
#define islower(c) __libc_ctype_index(_CTYPEMASK_L, c)
#define isspace(c) __libc_ctype_index(_CTYPEMASK_S, c)
#define ispunct(c) __libc_ctype_index(_CTYPEMASK_P, c)
#define isupper(c) __libc_ctype_index(_CTYPEMASK_U, c)
#define isalpha(c) __libc_ctype_index(_CTYPEMASK_A, c)
#define isxdigit(c) __libc_ctype_index(_CTYPEMASK_X, c)
#define isalnum(c) __libc_ctype_index(_CTYPEMASK_A|_CTYPEMASK_D, c)
#define isprint(c) __libc_ctype_index(_CTYPEMASK_R, c)
#define isgraph(c) __libc_ctype_index(_CTYPEMASK_G, c)
#define iscntrl(c) __libc_ctype_index(_CTYPEMASK_C, c)
#define tolower(c) __libc_ctype_convert(__libc_tolower_tab_, c)
#define toupper(c) __libc_ctype_convert(__libc_toupper_tab_, c)
#if defined(__XSI_VISIBLE)
#define isascii(c) ((unsigned)(c) <= 0177)
#define toascii(c) ((c) & 0177)
#define _tolower(c) ((c) - 'A' + 'a')
#define _toupper(c) ((c) - 'a' + 'A')
#endif
#if __ISO_C_VISIBLE >= 1999 || __POSIX_VISIBLE >= 200112L || \
__XSI_VISIBLE >= 600
#define isblank(c) __libc_ctype_index(_CTYPEMASK_B, c)
#endif
#endif /* !_CTYPE_H_DISABLE_MACROS_ */
#endif /* !_CTYPE_H_ */