glibc/wctype/wcfuncs.c

99 lines
2.7 KiB
C

/* Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#define __NO_WCTYPE
#include <wctype.h>
#include <ctype.h> /* For __ctype_tolower and __ctype_toupper. */
#include "cname-lookup.h"
/* If the program is compiled without optimization the following declaration
is not visible in the header. */
extern unsigned int *__ctype32_b;
/* These are not exported. */
extern const uint32_t *__ctype32_toupper;
extern const uint32_t *__ctype32_tolower;
/* Provide real-function versions of all the wctype macros. */
#define func(name, type) \
int \
__##name (wint_t wc) \
{ \
size_t idx; \
\
idx = cname_lookup (wc); \
if (idx == ~((size_t) 0)) \
return 0; \
\
return __ctype32_b[idx] & type; \
} \
weak_alias (__##name, name)
#undef iswalnum
func (iswalnum, _ISwalnum)
#undef iswalpha
func (iswalpha, _ISwalpha)
#undef iswcntrl
func (iswcntrl, _ISwcntrl)
#undef iswdigit
func (iswdigit, _ISwdigit)
#undef iswlower
func (iswlower, _ISwlower)
#undef iswgraph
func (iswgraph, _ISwgraph)
#undef iswprint
func (iswprint, _ISwprint)
#undef iswpunct
func (iswpunct, _ISwpunct)
#undef iswspace
func (iswspace, _ISwspace)
#undef iswupper
func (iswupper, _ISwupper)
#undef iswxdigit
func (iswxdigit, _ISwxdigit)
wint_t
(towlower) (wc)
wint_t wc;
{
size_t idx;
idx = cname_lookup (wc);
if (idx == ~((size_t) 0))
/* Character is not known. Default action is to simply return it. */
return wc;
return (wint_t) __ctype32_tolower[idx];
}
wint_t
(towupper) (wc)
wint_t wc;
{
size_t idx;
idx = cname_lookup (wc);
if (idx == ~((size_t) 0))
/* Character is not known. Default action is to simply return it. */
return wc;
return (wint_t) __ctype32_toupper[idx];
}