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60 lines
1.9 KiB
60 lines
1.9 KiB
/* |
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* Copyright (C) 1999-2001, 2016 Free Software Foundation, Inc. |
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* This file is part of the GNU LIBICONV Library. |
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* |
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* The GNU LIBICONV Library is free software; you can redistribute it |
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* and/or modify it under the terms of the GNU Library General Public |
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* License as published by the Free Software Foundation; either version 2 |
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* of the License, or (at your option) any later version. |
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* |
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* The GNU LIBICONV Library is distributed in the hope that it will be |
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* useful, 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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* Library General Public License for more details. |
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* |
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* You should have received a copy of the GNU Library General Public |
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* License along with the GNU LIBICONV Library; see the file COPYING.LIB. |
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* If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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/* |
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* CNS 11643-1992 plane 4 |
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*/ |
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/* |
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* The table has been split into two parts. Each part's entries fit it 16 bits. |
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* But the combined table would need 17 bits per entry. |
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*/ |
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#include "cns11643_4a.h" |
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#include "cns11643_4b.h" |
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static int |
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cns11643_4_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, size_t n) |
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{ |
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unsigned char c1 = s[0]; |
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if ((c1 >= 0x21 && c1 <= 0x6e)) { |
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if (n >= 2) { |
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unsigned char c2 = s[1]; |
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if (c2 >= 0x21 && c2 < 0x7f) { |
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unsigned int i = 94 * (c1 - 0x21) + (c2 - 0x21); |
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ucs4_t wc = 0xfffd; |
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unsigned short swc; |
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{ |
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if (i < 2914) |
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swc = cns11643_4a_2uni_page21[i], |
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wc = cns11643_4a_2uni_upages[swc>>8] | (swc & 0xff); |
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else if (i < 7298) |
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swc = cns11643_4b_2uni_page40[i-2914], |
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wc = cns11643_4b_2uni_upages[swc>>8] | (swc & 0xff); |
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} |
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if (wc != 0xfffd) { |
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*pwc = wc; |
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return 2; |
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} |
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} |
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return RET_ILSEQ; |
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} |
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return RET_TOOFEW(0); |
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} |
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return RET_ILSEQ; |
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}
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