lib/tis620.h

   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 Lesser General Public
   7  * License as published by the Free Software Foundation; either version 2.1
   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  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser 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  * TIS620.2533-1
  22  */
  23
  24 static int
  25 tis620_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, size_t n)
  26 {
  27   unsigned char c = *s;
  28   if (c < 0x80) {
  29     *pwc = (ucs4_t) c;
  30     return 1;
  31   }
  32   else if (c >= 0xa1 && c <= 0xfb && !(c >= 0xdb && c <= 0xde)) {
  33     *pwc = (ucs4_t) (c + 0x0d60);
  34     return 1;
  35   }
  36   return RET_ILSEQ;
  37 }
  38
  39 static int
  40 tis620_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, size_t n)
  41 {
  42   if (wc < 0x0080) {
  43     *r = wc;
  44     return 1;
  45   }
  46   else if (wc >= 0x0e01 && wc <= 0x0e5b && !(wc >= 0x0e3b && wc <= 0x0e3e)) {
  47     *r = wc-0x0d60;
  48     return 1;
  49   }
  50   return RET_ILUNI;
  51 }