iconvdata/jis0201.h

   1 /* Access functions for JISX0201 conversion.
   2    Copyright (C) 1997, 1998, 1999, 2003, 2007 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, see
  18    <http://www.gnu.org/licenses/>.  */
  19
  20 #ifndef _JIS0201_H
  21 #define _JIS0201_H      1
  22
  23 /* Conversion table.  */
  24 extern const uint32_t __jisx0201_to_ucs4[];
  25
  26
  27 static inline uint32_t
  28 __attribute ((always_inline))
  29 jisx0201_to_ucs4 (char ch)
  30 {
  31   uint32_t val = __jisx0201_to_ucs4[(unsigned char) ch];
  32
  33   if (val == 0 && ch != '\0')
  34     val = __UNKNOWN_10646_CHAR;
  35
  36   return val;
  37 }
  38
  39
  40 static inline size_t
  41 __attribute ((always_inline))
  42 ucs4_to_jisx0201 (uint32_t wch, unsigned char *s)
  43 {
  44   unsigned char ch;
  45
  46   if (wch == 0xa5)
  47     ch = '\x5c';
  48   else if (wch == 0x203e)
  49     ch = '\x7e';
  50   else if (wch < 0x7e && wch != 0x5c)
  51     ch = wch;
  52   else if (wch >= 0xff61 && wch <= 0xff9f)
  53     ch = wch - 0xfec0;
  54   else
  55     return __UNKNOWN_10646_CHAR;
  56
  57   s[0] = ch;
  58   return 1;
  59 }
  60
  61 #endif /* jis0201.h */