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127 lines
3.4 KiB
127 lines
3.4 KiB
/* |
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* Copyright (C) 1999-2001, 2005, 2007, 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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* CP949 is EUC-KR, extended with UHC (Unified Hangul Code). |
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* |
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* Some variants of CP949 (in JDK, Windows-2000, ICU) also add: |
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* |
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* 2. Private area mappings: |
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* |
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* code Unicode |
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* 0xC9{A1..FE} U+E000..U+E05D |
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* 0xFE{A1..FE} U+E05E..U+E0BB |
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* |
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* We add them too because, although there are backward compatibility problems |
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* when a character from a private area is moved to an official Unicode code |
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* point, they are useful for some people in practice. |
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*/ |
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#include "uhc_1.h" |
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#include "uhc_2.h" |
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static int |
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cp949_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, size_t n) |
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{ |
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unsigned char c = *s; |
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/* Code set 0 (ASCII) */ |
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if (c < 0x80) |
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return ascii_mbtowc(conv,pwc,s,n); |
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/* UHC part 1 */ |
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if (c >= 0x81 && c <= 0xa0) |
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return uhc_1_mbtowc(conv,pwc,s,n); |
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if (c >= 0xa1 && c < 0xff) { |
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if (n < 2) |
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return RET_TOOFEW(0); |
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{ |
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unsigned char c2 = s[1]; |
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if (c2 < 0xa1) |
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/* UHC part 2 */ |
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return uhc_2_mbtowc(conv,pwc,s,n); |
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else if (c2 < 0xff && !(c == 0xa2 && c2 == 0xe8)) { |
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/* Code set 1 (KS C 5601-1992, now KS X 1001:1998) */ |
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unsigned char buf[2]; |
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int ret; |
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buf[0] = c-0x80; buf[1] = c2-0x80; |
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ret = ksc5601_mbtowc(conv,pwc,buf,2); |
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if (ret != RET_ILSEQ) |
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return ret; |
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/* User-defined characters */ |
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if (c == 0xc9) { |
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*pwc = 0xe000 + (c2 - 0xa1); |
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return 2; |
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} |
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if (c == 0xfe) { |
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*pwc = 0xe05e + (c2 - 0xa1); |
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return 2; |
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} |
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} |
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} |
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} |
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return RET_ILSEQ; |
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} |
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static int |
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cp949_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, size_t n) |
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{ |
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unsigned char buf[2]; |
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int ret; |
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/* Code set 0 (ASCII) */ |
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ret = ascii_wctomb(conv,r,wc,n); |
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if (ret != RET_ILUNI) |
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return ret; |
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/* Code set 1 (KS C 5601-1992, now KS X 1001:1998) */ |
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if (wc != 0x327e) { |
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ret = ksc5601_wctomb(conv,buf,wc,2); |
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if (ret != RET_ILUNI) { |
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if (ret != 2) abort(); |
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if (n < 2) |
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return RET_TOOSMALL; |
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r[0] = buf[0]+0x80; |
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r[1] = buf[1]+0x80; |
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return 2; |
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} |
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} |
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/* UHC */ |
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if (wc >= 0xac00 && wc < 0xd7a4) { |
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if (wc < 0xc8a5) |
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return uhc_1_wctomb(conv,r,wc,n); |
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else |
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return uhc_2_wctomb(conv,r,wc,n); |
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} |
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/* User-defined characters */ |
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if (wc >= 0xe000 && wc < 0xe0bc) { |
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if (n < 2) |
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return RET_TOOSMALL; |
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if (wc < 0xe05e) { |
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r[0] = 0xc9; |
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r[1] = wc - 0xe000 + 0xa1; |
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} else { |
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r[0] = 0xfe; |
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r[1] = wc - 0xe05e + 0xa1; |
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} |
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return 2; |
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} |
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return RET_ILUNI; |
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}
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