3c0e634aee
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@14 42af7a65-404d-4744-a932-0658087f49c3
150 lines
4.7 KiB
C
150 lines
4.7 KiB
C
/************************************************************
|
|
* 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: isdigit
|
|
*
|
|
* Description:
|
|
* ANSI standard isdigit implementation.
|
|
*
|
|
************************************************************/
|
|
|
|
#define isdigit(c) \
|
|
(c >= '0' && c <= '9')
|
|
|
|
/************************************************************
|
|
* 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 <= 0177);
|
|
|
|
/************************************************************
|
|
* 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 */
|