release/src/router/libiconv/lib/jisx0201.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., 51 Franklin Street,
  18  * Fifth Floor, Boston, MA 02110-1301, USA.
  19  */
  20
  21 /*
  22  * JISX0201.1976-0
  23  */
  24
  25 static int
  26 jisx0201_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n)
  27 {
  28   unsigned char c = *s;
  29   if (c < 0x80) {
  30     if (c == 0x5c)
  31       *pwc = (ucs4_t) 0x00a5;
  32     else if (c == 0x7e)
  33       *pwc = (ucs4_t) 0x203e;
  34     else
  35       *pwc = (ucs4_t) c;
  36     return 1;
  37   } else {
  38     if (c >= 0xa1 && c < 0xe0) {
  39       *pwc = (ucs4_t) c + 0xfec0;
  40       return 1;
  41     }
  42   }
  43   return RET_ILSEQ;
  44 }
  45
  46 static int
  47 jisx0201_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n)
  48 {
  49   if (wc < 0x0080 && !(wc == 0x005c || wc == 0x007e)) {
  50     *r = wc;
  51     return 1;
  52   }
  53   if (wc == 0x00a5) {
  54     *r = 0x5c;
  55     return 1;
  56   }
  57   if (wc == 0x203e) {
  58     *r = 0x7e;
  59     return 1;
  60   }
  61   if (wc >= 0xff61 && wc < 0xffa0) {
  62     *r = wc - 0xfec0;
  63     return 1;
  64   }
  65   return RET_ILUNI;
  66 }