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libiconv

    1: /*
    2:  * Copyright (C) 1999-2001 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:  * IBM-CP1133
   23:  */
   24: 
   25: static const unsigned short cp1133_2uni_1[64] = {
   26:   /* 0xa0 */
   27:   0x00a0, 0x0e81, 0x0e82, 0x0e84, 0x0e87, 0x0e88, 0x0eaa, 0x0e8a,
   28:   0x0e8d, 0x0e94, 0x0e95, 0x0e96, 0x0e97, 0x0e99, 0x0e9a, 0x0e9b,
   29:   /* 0xb0 */
   30:   0x0e9c, 0x0e9d, 0x0e9e, 0x0e9f, 0x0ea1, 0x0ea2, 0x0ea3, 0x0ea5,
   31:   0x0ea7, 0x0eab, 0x0ead, 0x0eae, 0xfffd, 0xfffd, 0xfffd, 0x0eaf,
   32:   /* 0xc0 */
   33:   0x0eb0, 0x0eb2, 0x0eb3, 0x0eb4, 0x0eb5, 0x0eb6, 0x0eb7, 0x0eb8,
   34:   0x0eb9, 0x0ebc, 0x0eb1, 0x0ebb, 0x0ebd, 0xfffd, 0xfffd, 0xfffd,
   35:   /* 0xd0 */
   36:   0x0ec0, 0x0ec1, 0x0ec2, 0x0ec3, 0x0ec4, 0x0ec8, 0x0ec9, 0x0eca,
   37:   0x0ecb, 0x0ecc, 0x0ecd, 0x0ec6, 0xfffd, 0x0edc, 0x0edd, 0x20ad,
   38: };
   39: static const unsigned short cp1133_2uni_2[16] = {
   40:   /* 0xf0 */
   41:   0x0ed0, 0x0ed1, 0x0ed2, 0x0ed3, 0x0ed4, 0x0ed5, 0x0ed6, 0x0ed7,
   42:   0x0ed8, 0x0ed9, 0xfffd, 0xfffd, 0x00a2, 0x00ac, 0x00a6, 0xfffd,
   43: };
   44: 
   45: static int
   46: cp1133_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n)
   47: {
   48:   unsigned char c = *s;
   49:   if (c < 0xa0) {
   50:     *pwc = (ucs4_t) c;
   51:     return 1;
   52:   }
   53:   else if (c < 0xe0) {
   54:     unsigned short wc = cp1133_2uni_1[c-0xa0];
   55:     if (wc != 0xfffd) {
   56:       *pwc = (ucs4_t) wc;
   57:       return 1;
   58:     }
   59:   }
   60:   else if (c < 0xf0) {
   61:   }
   62:   else {
   63:     unsigned short wc = cp1133_2uni_2[c-0xf0];
   64:     if (wc != 0xfffd) {
   65:       *pwc = (ucs4_t) wc;
   66:       return 1;
   67:     }
   68:   }
   69:   return RET_ILSEQ;
   70: }
   71: 
   72: static const unsigned char cp1133_page00[16] = {
   73:   0xa0, 0x00, 0xfc, 0x00, 0x00, 0x00, 0xfe, 0x00, /* 0xa0-0xa7 */
   74:   0x00, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x00, 0x00, /* 0xa8-0xaf */
   75: };
   76: static const unsigned char cp1133_page0e[96] = {
   77:   0x00, 0xa1, 0xa2, 0x00, 0xa3, 0x00, 0x00, 0xa4, /* 0x80-0x87 */
   78:   0xa5, 0x00, 0xa7, 0x00, 0x00, 0xa8, 0x00, 0x00, /* 0x88-0x8f */
   79:   0x00, 0x00, 0x00, 0x00, 0xa9, 0xaa, 0xab, 0xac, /* 0x90-0x97 */
   80:   0x00, 0xad, 0xae, 0xaf, 0xb0, 0xb1, 0xb2, 0xb3, /* 0x98-0x9f */
   81:   0x00, 0xb4, 0xb5, 0xb6, 0x00, 0xb7, 0x00, 0xb8, /* 0xa0-0xa7 */
   82:   0x00, 0x00, 0xa6, 0xb9, 0x00, 0xba, 0xbb, 0xbf, /* 0xa8-0xaf */
   83:   0xc0, 0xca, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, /* 0xb0-0xb7 */
   84:   0xc7, 0xc8, 0x00, 0xcb, 0xc9, 0xcc, 0x00, 0x00, /* 0xb8-0xbf */
   85:   0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0x00, 0xdb, 0x00, /* 0xc0-0xc7 */
   86:   0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0x00, 0x00, /* 0xc8-0xcf */
   87:   0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xd0-0xd7 */
   88:   0xf8, 0xf9, 0x00, 0x00, 0xdd, 0xde, 0x00, 0x00, /* 0xd8-0xdf */
   89: };
   90: 
   91: static int
   92: cp1133_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n)
   93: {
   94:   unsigned char c = 0;
   95:   if (wc < 0x00a0) {
   96:     *r = wc;
   97:     return 1;
   98:   }
   99:   else if (wc >= 0x00a0 && wc < 0x00b0)
  100:     c = cp1133_page00[wc-0x00a0];
  101:   else if (wc >= 0x0e80 && wc < 0x0ee0)
  102:     c = cp1133_page0e[wc-0x0e80];
  103:   else if (wc == 0x20ad)
  104:     c = 0xdf;
  105:   if (c != 0) {
  106:     *r = c;
  107:     return 1;
  108:   }
  109:   return RET_ILUNI;
  110: }