60 lines
1.7 KiB
C
60 lines
1.7 KiB
C
/* Copyright (C) 1991 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., 675 Mass Ave,
|
|
Cambridge, MA 02139, USA. */
|
|
|
|
#include <ansidecl.h>
|
|
#include <localeinfo.h>
|
|
#include <stddef.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
|
|
extern int _mb_shift; /* Defined in mbtowc.c. */
|
|
|
|
/* Convert WCHAR into its multibyte character representation,
|
|
putting this in S and returning its length. */
|
|
int
|
|
DEFUN(wctomb, (s, wchar), register char *s AND wchar_t wchar)
|
|
{
|
|
register CONST mb_char *mb;
|
|
|
|
if (_ctype_info->mbchar == NULL)
|
|
mb = NULL;
|
|
else
|
|
mb = _ctype_info->mbchar->mb_chars;
|
|
|
|
/* If S is NULL, just say if we're shifted or not. */
|
|
if (s == NULL)
|
|
return _mb_shift != 0;
|
|
|
|
if (wchar == (wchar_t) '\0')
|
|
{
|
|
_mb_shift = 0;
|
|
return 0;
|
|
}
|
|
else if (mb == NULL)
|
|
return -1;
|
|
|
|
mb += wchar + _mb_shift;
|
|
if (mb->string == NULL || mb->len == 0)
|
|
return -1;
|
|
memcpy((PTR) s, (CONST PTR) mb->string, mb->len + 1);
|
|
_mb_shift += mb->shift;
|
|
return mb->len;
|
|
}
|