diff options
Diffstat (limited to 'MSVC/iconv/euc_tw.h')
-rw-r--r-- | MSVC/iconv/euc_tw.h | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/MSVC/iconv/euc_tw.h b/MSVC/iconv/euc_tw.h new file mode 100644 index 0000000..753dfac --- /dev/null +++ b/MSVC/iconv/euc_tw.h @@ -0,0 +1,116 @@ +/* + * Copyright (C) 1999-2001 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, write to the Free Software Foundation, Inc., 59 Temple Place - + * Suite 330, Boston, MA 02111-1307, USA. + */ + +/* + * EUC-TW + */ + +static int +euc_tw_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n) +{ + unsigned char c = *s; + /* Code set 0 (ASCII) */ + if (c < 0x80) + return ascii_mbtowc(conv,pwc,s,n); + /* Code set 1 (CNS 11643-1992 Plane 1) */ + if (c >= 0xa1 && c < 0xff) { + if (n < 2) + return RET_TOOFEW(0); + { + unsigned char c2 = s[1]; + if (c2 >= 0xa1 && c2 < 0xff) { + unsigned char buf[2]; + buf[0] = c-0x80; buf[1] = c2-0x80; + return cns11643_1_mbtowc(conv,pwc,buf,2); + } else + return RET_ILSEQ; + } + } + /* Code set 2 (CNS 11643-1992 Planes 1-16) */ + if (c == 0x8e) { + if (n < 4) + return RET_TOOFEW(0); + { + unsigned char c2 = s[1]; + if (c2 >= 0xa1 && c2 <= 0xb0) { + unsigned char c3 = s[2]; + unsigned char c4 = s[3]; + if (c3 >= 0xa1 && c3 < 0xff && c4 >= 0xa1 && c4 < 0xff) { + unsigned char buf[2]; + int ret; + buf[0] = c3-0x80; buf[1] = c4-0x80; + switch (c2-0xa0) { + case 1: ret = cns11643_1_mbtowc(conv,pwc,buf,2); break; + case 2: ret = cns11643_2_mbtowc(conv,pwc,buf,2); break; + case 3: ret = cns11643_3_mbtowc(conv,pwc,buf,2); break; + case 4: ret = cns11643_4_mbtowc(conv,pwc,buf,2); break; + case 5: ret = cns11643_5_mbtowc(conv,pwc,buf,2); break; + case 6: ret = cns11643_6_mbtowc(conv,pwc,buf,2); break; + case 7: ret = cns11643_7_mbtowc(conv,pwc,buf,2); break; + case 15: ret = cns11643_15_mbtowc(conv,pwc,buf,2); break; + default: return RET_ILSEQ; + } + if (ret == RET_ILSEQ) + return RET_ILSEQ; + if (ret != 2) abort(); + return 4; + } + } + } + } + return RET_ILSEQ; +} + +static int +euc_tw_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n) +{ + unsigned char buf[3]; + int ret; + + /* Code set 0 (ASCII) */ + ret = ascii_wctomb(conv,r,wc,n); + if (ret != RET_ILUNI) + return ret; + + ret = cns11643_wctomb(conv,buf,wc,3); + if (ret != RET_ILUNI) { + if (ret != 3) abort(); + + /* Code set 1 (CNS 11643-1992 Plane 1) */ + if (buf[0] == 1) { + if (n < 2) + return RET_TOOSMALL; + r[0] = buf[1]+0x80; + r[1] = buf[2]+0x80; + return 2; + } + + /* Code set 2 (CNS 11643-1992 Planes 1-16) */ + if (n < 4) + return RET_TOOSMALL; + r[0] = 0x8e; + r[1] = buf[0]+0xa0; + r[2] = buf[1]+0x80; + r[3] = buf[2]+0x80; + return 4; + } + + return RET_ILUNI; +} |