glibc/wctype/towctrans_l.c

53 lines
1.8 KiB
C

/* Map wide character using given mapping and locale.
Copyright (C) 1996, 1997, 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. */
#include <wctype.h>
/* Define the lookup function. */
#define USE_IN_EXTENDED_LOCALE_MODEL 1
#include "cname-lookup.h"
#include "wchar-lookup.h"
wint_t
__towctrans_l (wint_t wc, wctrans_t desc, __locale_t locale)
{
/* If the user passes in an invalid DESC valid (the one returned from
`__wctrans_l' in case of an error) simply return the value. */
if (desc == (wctrans_t) 0)
return wc;
if (locale->__locales[LC_CTYPE]->values[_NL_ITEM_INDEX (_NL_CTYPE_HASH_SIZE)].word != 0)
{
/* Old locale format. */
size_t idx;
idx = cname_lookup (wc, locale);
if (idx == ~((size_t) 0))
/* Character is not known. Default action is to simply return it. */
return wc;
return (wint_t) desc[idx];
}
else
{
/* New locale format. */
return wctrans_table_lookup ((const char *) desc, wc);
}
}