/************************************************************
* ctype.h
*
* Copyright (C) 2007 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* 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 Gregory Nutt 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 COPYRIGHT HOLDERS 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
* COPYRIGHT OWNER 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.
*
************************************************************/
#ifndef __CTYPE_H
#define __CTYPE_H
/* There is no consistent ctype implementation, just a
* smattering of functions. Individually, they are okay, but
* a more standard, data lookup approach would make more sense
* if used extensively.
*/
/************************************************************
* Included Files
************************************************************/
#include <sys/types.h>
/************************************************************
* Definitions
************************************************************/
/************************************************************
* Function: isspace
*
* Description:
* Checks for white-space characters. In the "C" and "POSIX"
* locales, these are: space, form-feed ('\f'), newline ('\n'),
* carriage return ('\r'), horizontal tab ('\t'), and vertical
* tab ('\v').
*
************************************************************/
#define isspace(c) \
((c) == ' ' || (c) == '\t' || (c) == '\n' || \
(c) == '\r' || (c) == '\f' || c== '\v')
/************************************************************
* Function: isascii
*
* Description:
* Checks whether c is a 7-bit unsigned char value that
* fits into the ASCII character set.
*
************************************************************/
#define isascii(c) ((c) >= 0 && (c) <= 0x7f);
/************************************************************
* Function: isprint
*
* Description:
* Checks for a printable character (including space)
*
************************************************************/
#define isprint(c) ((c) >= 0x20 && (c) < 0x7f)
/************************************************************
* Function: isgraph
*
* Description:
* Checks for a printable character (excluding space)
*
************************************************************/
#define isgraph(c) ((c) > 0x20 && (c) < 0x7f)
/************************************************************
* Function: iscntrl
*
* Description:
* Checks for control character.
*
************************************************************/
#define iscontrol(c) (!isprint(c))
/************************************************************
* Function: islower
*
* Description:
* Checks for an lowercase letter.
*
************************************************************/
#define islower(c) ((c) >= 'a' && (c) <= 'z')
/************************************************************
* Function: isupper
*
* Description:
* Checks for an uppercase letter.
*
************************************************************/
#define isupper(c) ((c) >= 'a' && (c) <= 'z')
/************************************************************
* Function: isalpha
*
* Description:
* Checks for an alphabetic character
*
************************************************************/
#define isalpha(c) (islower(c) || isupper(c))
/************************************************************
* Function: isdigit
*
* Description:
* ANSI standard isdigit implementation.
*
************************************************************/
#define isdigit(c) ((c) >= '0' && (c) <= '9')
/************************************************************
* Function: isalnum
*
* Description:
* Checks for an alphanumeric character
*
************************************************************/
#define isalnum(c) (isalpha(c) || isdigit(c))
/************************************************************
* Function: ispunct
*
* Description:
* Checks for a printable character which is not a space
* or an alphanumeric character
*
************************************************************/
#define ispunct(c) (isgraph(c) && !isalnum(c))
/************************************************************
* Function: isxdigit
*
* Description:
* isxdigit() checks for a hexadecimal digits, i.e. one of
* {0-9,a-f,A-F}
*
************************************************************/
#define isxdigit(c) \
(((c) >= '0' && (c) <= '9') || \
((c) >= 'a' && (c) <= 'f') || \
((c) >= 'A' && (c) <= 'F'))
/************************************************************
* Function: toupper
*
* Description:
* toupper() converts the letter c to upper case, if possible.
*
************************************************************/
#define toupper(c) \
(((c) >= 'a' && (c) <= 'z') ? ((c) - 'a' + 'A') : (c))
/************************************************************
* Function: tolower
*
* Description:
* tolower() converts the letter c to lower case, if possible.
*
************************************************************/
#define tolower(c) \
(((c) >= 'A' && (c) <= 'Z') ? ((c) - 'A' + 'a') : (c))
/************************************************************
* Public Type Definitions
************************************************************/
/************************************************************
* Public Functions
************************************************************/
#ifdef __cplusplus
#define EXTERN extern "C"
extern "C" {
#else
#define EXTERN extern
#endif
#undef EXTERN
#ifdef __cplusplus
}
#endif
#endif /* __CTYPE_H */
