lib/tis620.h

   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., 59 Temple Place -
  18  * Suite 330, Boston, MA 02111-1307, USA.
  19  */
  20
  21 /*
  22  * TIS620.2533-1
  23  */
  24
  25 static int
  26 tis620_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n)
  27 {
  28   unsigned char c = *s;
  29   if (c < 0x80) {
  30     *pwc = (ucs4_t) c;
  31     return 1;
  32   }
  33   else if (c >= 0xa1 && c <= 0xfb && !(c >= 0xdb && c <= 0xde)) {
  34     *pwc = (ucs4_t) (c + 0x0d60);
  35     return 1;
  36   }
  37   return RET_ILSEQ;
  38 }
  39
  40 static int
  41 tis620_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n)
  42 {
  43   if (wc < 0x0080) {
  44     *r = wc;
  45     return 1;
  46   }
  47   else if (wc >= 0x0e01 && wc <= 0x0e5b && !(wc >= 0x0e3b && wc <= 0x0e3e)) {
  48     *r = wc-0x0d60;
  49     return 1;
  50   }
  51   return RET_ILUNI;
  52 }