cns11643_4.h
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/*
* Copyright (C) 1999-2001, 2016 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, see <http://www.gnu.org/licenses/>.
*/
/*
* CNS 11643-1992 plane 4
*/
/*
* The table has been split into two parts. Each part's entries fit it 16 bits.
* But the combined table would need 17 bits per entry.
*/
#include "cns11643_4a.h"
#include "cns11643_4b.h"
static int
cns11643_4_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, size_t n)
{
unsigned char c1 = s[0];
if ((c1 >= 0x21 && c1 <= 0x6e)) {
if (n >= 2) {
unsigned char c2 = s[1];
if (c2 >= 0x21 && c2 < 0x7f) {
unsigned int i = 94 * (c1 - 0x21) + (c2 - 0x21);
ucs4_t wc = 0xfffd;
unsigned short swc;
{
if (i < 2914)
swc = cns11643_4a_2uni_page21[i],
wc = cns11643_4a_2uni_upages[swc>>8] | (swc & 0xff);
else if (i < 7298)
swc = cns11643_4b_2uni_page40[i-2914],
wc = cns11643_4b_2uni_upages[swc>>8] | (swc & 0xff);
}
if (wc != 0xfffd) {
*pwc = wc;
return 2;
}
}
return RET_ILSEQ;
}
return RET_TOOFEW(0);
}
return RET_ILSEQ;
}