glibc/wctype/wctype.c

49 lines
1.5 KiB
C

/* Copyright (C) 1996-2017 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gnu.org>, 1996.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <endian.h>
#include <string.h>
#include <wctype.h>
#include <locale/localeinfo.h>
wctype_t
__wctype (const char *property)
{
const char *names;
unsigned int result;
size_t proplen = strlen (property);
size_t i;
names = _NL_CURRENT (LC_CTYPE, _NL_CTYPE_CLASS_NAMES);
for (result = 0; ; result++)
{
size_t nameslen = strlen (names);
if (proplen == nameslen && memcmp (property, names, proplen) == 0)
break;
names += nameslen + 1;
if (names[0] == '\0')
return 0;
}
i = _NL_CURRENT_WORD (LC_CTYPE, _NL_CTYPE_CLASS_OFFSET) + result;
return (wctype_t) _NL_CURRENT_DATA (LC_CTYPE)->values[i].string;
}
weak_alias (__wctype, wctype)