1 /* 2 * Copyright (C) 2001 Free Software Foundation, Inc. 3 * This file is part of the GNU LIBICONV Library. 4 * 5 * The GNU LIBICONV Library is free software; you can redistribute it 6 * and/or modify it under the terms of the GNU Library General Public 7 * License as published by the Free Software Foundation; either version 2 8 * of the License, or (at your option) any later version. 9 * 10 * The GNU LIBICONV Library is distributed in the hope that it will be 11 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public 16 * License along with the GNU LIBICONV Library; see the file COPYING.LIB. 17 * If not, write to the Free Software Foundation, Inc., 51 Franklin Street, 18 * Fifth Floor, Boston, MA 02110-1301, USA. 19 */ 20 21 /* 22 * DEC-KANJI 23 */ 24 25 static int 26 dec_kanji_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n) 27 { 28 unsigned char c = *s; 29 /* Code set 0 (ASCII or JIS X 0201-1976 Roman) */ 30 if (c < 0x80) 31 return ascii_mbtowc(conv,pwc,s,n); 32 /* Code set 1 (JIS X 0208) */ 33 if (c >= 0xa1 && c < 0xf5) { 34 if (n < 2) 35 return RET_TOOFEW(0); 36 { 37 unsigned char c2 = s[1]; 38 if (c2 >= 0xa1 && c2 < 0xff) { 39 unsigned char buf[2]; 40 buf[0] = c-0x80; buf[1] = c2-0x80; 41 return jisx0208_mbtowc(conv,pwc,buf,2); 42 } 43 } 44 } 45 return RET_ILSEQ; 46 } 47 48 static int 49 dec_kanji_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n) 50 { 51 unsigned char buf[2]; 52 int ret; 53 54 /* Code set 0 (ASCII or JIS X 0201-1976 Roman) */ 55 ret = ascii_wctomb(conv,r,wc,n); 56 if (ret != RET_ILUNI) 57 return ret; 58 59 /* Code set 1 (JIS X 0208) */ 60 ret = jisx0208_wctomb(conv,buf,wc,2); 61 if (ret != RET_ILUNI) { 62 if (ret != 2) abort(); 63 if (n < 2) 64 return RET_TOOSMALL; 65 r[0] = buf[0]+0x80; 66 r[1] = buf[1]+0x80; 67 return 2; 68 } 69 70 return RET_ILUNI; 71 } 72