Sweden-Number/libs/port/cpsymbol.c

59 lines
1.7 KiB
C

/*
* CP_SYMBOL support
*
* Copyright 2000 Alexandre Julliard
* Copyright 2004 Rein Klazes
*
* This 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.
*
* This 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 this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "wine/unicode.h"
/* return -1 on dst buffer overflow */
int wine_cpsymbol_mbstowcs( const char *src, int srclen, WCHAR *dst, int dstlen)
{
int len, i;
if (dstlen == 0) return srclen;
len = dstlen > srclen ? srclen : dstlen;
for (i = 0; i < len; i++)
{
unsigned char c = src[i];
dst[i] = (c < 0x20) ? c : c + 0xf000;
}
if (srclen > len) return -1;
return len;
}
/* return -1 on dst buffer overflow, -2 on invalid character */
int wine_cpsymbol_wcstombs( const WCHAR *src, int srclen, char *dst, int dstlen)
{
int len, i;
if (dstlen == 0) return srclen;
len = dstlen > srclen ? srclen : dstlen;
for (i = 0; i < len; i++)
{
if (src[i] < 0x20)
dst[i] = src[i];
else if (src[i] >= 0xf020 && src[i] < 0xf100)
dst[i] = src[i] - 0xf000;
else
return -2;
}
if (srclen > len) return -1;
return len;
}