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59 lines
1.7 KiB
C
59 lines
1.7 KiB
C
/*
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* CP_SYMBOL support
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*
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* Copyright 2000 Alexandre Julliard
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* Copyright 2004 Rein Klazes
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "wine/unicode.h"
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/* return -1 on dst buffer overflow */
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int wine_cpsymbol_mbstowcs( const char *src, int srclen, WCHAR *dst, int dstlen)
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{
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int len, i;
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if (dstlen == 0) return srclen;
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len = dstlen > srclen ? srclen : dstlen;
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for (i = 0; i < len; i++)
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{
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unsigned char c = src[i];
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dst[i] = (c < 0x20) ? c : c + 0xf000;
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}
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if (srclen > len) return -1;
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return len;
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}
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/* return -1 on dst buffer overflow, -2 on invalid character */
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int wine_cpsymbol_wcstombs( const WCHAR *src, int srclen, char *dst, int dstlen)
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{
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int len, i;
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if (dstlen == 0) return srclen;
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len = dstlen > srclen ? srclen : dstlen;
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for (i = 0; i < len; i++)
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{
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if (src[i] < 0x20)
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dst[i] = src[i];
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else if (src[i] >= 0xf020 && src[i] < 0xf100)
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dst[i] = src[i] - 0xf000;
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else
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return -2;
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}
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if (srclen > len) return -1;
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return len;
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}
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