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/*
* ctype wrappers
*
* Copyright (c) 2011 Marko Kreen
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/**
* @file
* ctype compat.
*
* Provides wrappers that make sure the functions work on 'char' values.
*
* @note
* POSIX requires that these functions accept EOF/-1 in addition
* to ordinary byte values. That means when working on 'char',
* the functions cannot differetiate between 0xFF and EOF.
* As no code should give EOF to <ctype.h> functions and no code
* should depend whether 0xFF is labeled ispunct() or not,
* it seems no worthwhile to fix it.
*/
#ifndef _USUAL_CTYPE_H_
#define _USUAL_CTYPE_H_
#include <usual/base.h>
#include <ctype.h>
#ifndef isblank
#define isblank usual_isblank
static inline int isblank(int c) { return (c == ' ') || (c == '\t'); }
#endif
/* keep right signature, cast to uchar internally */
#define _WRAP_CTYPE_FN(name) \
static inline int safe_ ## name (int c) { \
return name((unsigned char)(c)); \
}
_WRAP_CTYPE_FN(isalnum)
#undef isalnum
/** Safe isalnum */
#define isalnum safe_isalnum
_WRAP_CTYPE_FN(isalpha)
#undef isalpha
/** Safe isalpha */
#define isalpha safe_isalpha
_WRAP_CTYPE_FN(isascii)
#undef isascii
/** Safe isascii */
#define isascii safe_isascii
_WRAP_CTYPE_FN(isblank)
#undef isblank
/** Safe isblank */
#define isblank safe_isblank
_WRAP_CTYPE_FN(iscntrl)
#undef iscntrl
/** Safe iscntrl */
#define iscntrl safe_iscntrl
_WRAP_CTYPE_FN(isdigit)
#undef isdigit
/** Safe isdigit */
#define isdigit safe_isdigit
_WRAP_CTYPE_FN(isgraph)
#undef isgraph
/** Safe isgraph */
#define isgraph safe_isgraph
_WRAP_CTYPE_FN(islower)
#undef islower
/** Safe islower */
#define islower safe_islower
_WRAP_CTYPE_FN(isprint)
#undef isprint
/** Safe isprint */
#define isprint safe_isprint
_WRAP_CTYPE_FN(ispunct)
#undef ispunct
/** Safe ispunct */
#define ispunct safe_ispunct
_WRAP_CTYPE_FN(isspace)
#undef isspace
/** Safe isspace */
#define isspace safe_isspace
_WRAP_CTYPE_FN(isupper)
#undef isupper
/** Safe isupper */
#define isupper safe_isupper
_WRAP_CTYPE_FN(isxdigit)
#undef isxdigit
/** Safe isxdigit */
#define isxdigit safe_isxdigit
_WRAP_CTYPE_FN(tolower)
#undef tolower
/** Safe tolower */
#define tolower safe_tolower
_WRAP_CTYPE_FN(toupper)
#undef toupper
/** Safe toupper */
#define toupper safe_toupper
#undef _WRAP_CTYPE_FN
#endif /* _USUAL_CTYPE_H_ */
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