| /* |
| * 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 Lesser General Public |
| * License as published by the Free Software Foundation; either version 2.1 |
| * 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 |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with the GNU LIBICONV Library; see the file COPYING.LIB. |
| * If not, see <https://www.gnu.org/licenses/>. |
| */ |
| |
| /* |
| * ISO646-CN |
| * also known as GB_1988-80 |
| */ |
| |
| static int |
| iso646_cn_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, size_t n) |
| { |
| unsigned char c = *s; |
| if (c < 0x80) { |
| if (c == 0x24) |
| *pwc = (ucs4_t) 0x00a5; |
| else if (c == 0x7e) |
| *pwc = (ucs4_t) 0x203e; |
| else |
| *pwc = (ucs4_t) c; |
| return 1; |
| } |
| return RET_ILSEQ; |
| } |
| |
| static int |
| iso646_cn_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, size_t n) |
| { |
| if (wc < 0x0080 && !(wc == 0x0024 || wc == 0x007e)) { |
| *r = wc; |
| return 1; |
| } |
| if (wc == 0x00a5) { |
| *r = 0x24; |
| return 1; |
| } |
| if (wc == 0x203e) { |
| *r = 0x7e; |
| return 1; |
| } |
| return RET_ILUNI; |
| } |