/*
* Copyright (C) 1999-2001 Free Software Foundation, Inc.
* This file is part of the GNU LIBICONV Library.
*
* The GNU LIBICONV 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 LIBICONV 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 LIBICONV Library; see the file COPYING.LIB.
* If not, write to the Free Software Foundation, Inc., 51 Franklin Street,
* Fifth Floor, Boston, MA 02110-1301, USA.
*/
/*
* GB/T 12345-1990
*/
/*
* GB/T 12345-1990 is a traditional chinese counterpart of GB 2312-1986.
* According to the unicode.org tables:
* 2146 characters have been changed to their traditional counterpart,
* 103 characters have been added, no characters have been removed.
* Therefore we use an auxiliary table, which contains only the changes.
*/
#include "gb12345ext.h"
static int
gb12345_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n)
{
int ret;
/* The gb12345ext table overrides some entries in the gb2312 table. */
/* Try the GB12345 extensions -> Unicode table. */
ret = gb12345ext_mbtowc(conv,pwc,s,n);
if (ret != RET_ILSEQ)
return ret;
/* Try the GB2312 -> Unicode table. */
ret = gb2312_mbtowc(conv,pwc,s,n);
return ret;
}
static int
gb12345_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n)
{
int ret;
/* The gb12345ext table overrides some entries in the gb2312 table. */
/* Try the Unicode -> GB12345 extensions table. */
ret = gb12345ext_wctomb(conv,r,wc,n);
if (ret != RET_ILUNI)
return ret;
/* Try the Unicode -> GB2312 table, and check that the resulting GB2312
byte sequence is not overridden by the GB12345 extensions table. */
ret = gb2312_wctomb(conv,r,wc,n);
if (ret == 2 && gb12345ext_mbtowc(conv,&wc,r,2) == 2)
return RET_ILUNI;
else
return ret;
}
