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libiconv 1.16

    1: /*
    2:  * Copyright (C) 1999-2001, 2016 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, see <https://www.gnu.org/licenses/>.
   18:  */
   19: 
   20: /*
   21:  * CP874
   22:  */
   23: 
   24: static const unsigned short cp874_2uni[128] = {
   25:   /* 0x80 */
   26:   0x20ac, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0x2026, 0xfffd, 0xfffd,
   27:   0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd,
   28:   /* 0x90 */
   29:   0xfffd, 0x2018, 0x2019, 0x201c, 0x201d, 0x2022, 0x2013, 0x2014,
   30:   0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd,
   31:   /* 0xa0 */
   32:   0x00a0, 0x0e01, 0x0e02, 0x0e03, 0x0e04, 0x0e05, 0x0e06, 0x0e07,
   33:   0x0e08, 0x0e09, 0x0e0a, 0x0e0b, 0x0e0c, 0x0e0d, 0x0e0e, 0x0e0f,
   34:   /* 0xb0 */
   35:   0x0e10, 0x0e11, 0x0e12, 0x0e13, 0x0e14, 0x0e15, 0x0e16, 0x0e17,
   36:   0x0e18, 0x0e19, 0x0e1a, 0x0e1b, 0x0e1c, 0x0e1d, 0x0e1e, 0x0e1f,
   37:   /* 0xc0 */
   38:   0x0e20, 0x0e21, 0x0e22, 0x0e23, 0x0e24, 0x0e25, 0x0e26, 0x0e27,
   39:   0x0e28, 0x0e29, 0x0e2a, 0x0e2b, 0x0e2c, 0x0e2d, 0x0e2e, 0x0e2f,
   40:   /* 0xd0 */
   41:   0x0e30, 0x0e31, 0x0e32, 0x0e33, 0x0e34, 0x0e35, 0x0e36, 0x0e37,
   42:   0x0e38, 0x0e39, 0x0e3a, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0x0e3f,
   43:   /* 0xe0 */
   44:   0x0e40, 0x0e41, 0x0e42, 0x0e43, 0x0e44, 0x0e45, 0x0e46, 0x0e47,
   45:   0x0e48, 0x0e49, 0x0e4a, 0x0e4b, 0x0e4c, 0x0e4d, 0x0e4e, 0x0e4f,
   46:   /* 0xf0 */
   47:   0x0e50, 0x0e51, 0x0e52, 0x0e53, 0x0e54, 0x0e55, 0x0e56, 0x0e57,
   48:   0x0e58, 0x0e59, 0x0e5a, 0x0e5b, 0xfffd, 0xfffd, 0xfffd, 0xfffd,
   49: };
   50: 
   51: static int
   52: cp874_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, size_t n)
   53: {
   54:   unsigned char c = *s;
   55:   if (c < 0x80) {
   56:     *pwc = (ucs4_t) c;
   57:     return 1;
   58:   }
   59:   else {
   60:     unsigned short wc = cp874_2uni[c-0x80];
   61:     if (wc != 0xfffd) {
   62:       *pwc = (ucs4_t) wc;
   63:       return 1;
   64:     }
   65:   }
   66:   return RET_ILSEQ;
   67: }
   68: 
   69: static const unsigned char cp874_page0e[96] = {
   70:   0x00, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0x00-0x07 */
   71:   0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0x08-0x0f */
   72:   0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0x10-0x17 */
   73:   0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0x18-0x1f */
   74:   0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0x20-0x27 */
   75:   0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0x28-0x2f */
   76:   0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0x30-0x37 */
   77:   0xd8, 0xd9, 0xda, 0x00, 0x00, 0x00, 0x00, 0xdf, /* 0x38-0x3f */
   78:   0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0x40-0x47 */
   79:   0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0x48-0x4f */
   80:   0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0x50-0x57 */
   81:   0xf8, 0xf9, 0xfa, 0xfb, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
   82: };
   83: static const unsigned char cp874_page20[24] = {
   84:   0x00, 0x00, 0x00, 0x96, 0x97, 0x00, 0x00, 0x00, /* 0x10-0x17 */
   85:   0x91, 0x92, 0x00, 0x00, 0x93, 0x94, 0x00, 0x00, /* 0x18-0x1f */
   86:   0x00, 0x00, 0x95, 0x00, 0x00, 0x00, 0x85, 0x00, /* 0x20-0x27 */
   87: };
   88: 
   89: static int
   90: cp874_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, size_t n)
   91: {
   92:   unsigned char c = 0;
   93:   if (wc < 0x0080) {
   94:     *r = wc;
   95:     return 1;
   96:   }
   97:   else if (wc == 0x00a0)
   98:     c = 0xa0;
   99:   else if (wc >= 0x0e00 && wc < 0x0e60)
  100:     c = cp874_page0e[wc-0x0e00];
  101:   else if (wc >= 0x2010 && wc < 0x2028)
  102:     c = cp874_page20[wc-0x2010];
  103:   else if (wc == 0x20ac)
  104:     c = 0x80;
  105:   if (c != 0) {
  106:     *r = c;
  107:     return 1;
  108:   }
  109:   return RET_ILUNI;
  110: }