xref: /freebsd-10.0-release/sys/sys/ctype.h

/*-
 * Copyright (c) 1982, 1988, 1991, 1993
 *	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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. 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.
 *
 * $FreeBSD: head/sys/sys/ctype.h 107328 2002-11-27 18:09:20Z iwasaki $
 */

#ifndef _SYS_CTYPE_H_
#define	_SYS_CTYPE_H_

#ifdef _KERNEL

#define isspace(c)	((c) == ' ' || ((c) >= '\t' && (c) <= '\r'))
#define isascii(c)	(((c) & ~0x7f) == 0)
#define isupper(c)	((c) >= 'A' && (c) <= 'Z')
#define islower(c)	((c) >= 'a' && (c) <= 'z')
#define isalpha(c)	(isupper(c) || islower(c))
#define isdigit(c)	((c) >= '0' && (c) <= '9')
#define isxdigit(c)	(isdigit(c) \
			  || ((c) >= 'A' && (c) <= 'F') \
			  || ((c) >= 'a' && (c) <= 'f'))
#define isprint(c)	((c) >= ' ' && (c) <= '~')

#define toupper(c)	((c) - 0x20 * (((c) >= 'a') && ((c) <= 'z')))
#define tolower(c)	((c) + 0x20 * (((c) >= 'A') && ((c) <= 'Z')))

#endif
#endif /* !_SYS_CTYPE_H_ */