iconvdata/jis0201.h

   1 /* Access functions for JISX0201 conversion.
   2    Copyright (C) 1997-2018 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 #include <stdint.h>
  24
  25 /* Conversion table.  */
  26 extern const uint32_t __jisx0201_to_ucs4[];
  27
  28
  29 static inline uint32_t
  30 __attribute ((always_inline))
  31 jisx0201_to_ucs4 (char ch)
  32 {
  33   uint32_t val = __jisx0201_to_ucs4[(unsigned char) ch];
  34
  35   if (val == 0 && ch != '\0')
  36     val = __UNKNOWN_10646_CHAR;
  37
  38   return val;
  39 }
  40
  41
  42 static inline size_t
  43 __attribute ((always_inline))
  44 ucs4_to_jisx0201 (uint32_t wch, unsigned char *s)
  45 {
  46   unsigned char ch;
  47
  48   if (wch == 0xa5)
  49     ch = '\x5c';
  50   else if (wch == 0x203e)
  51     ch = '\x7e';
  52   else if (wch < 0x7e && wch != 0x5c)
  53     ch = wch;
  54   else if (wch >= 0xff61 && wch <= 0xff9f)
  55     ch = wch - 0xfec0;
  56   else
  57     return __UNKNOWN_10646_CHAR;
  58
  59   s[0] = ch;
  60   return 1;
  61 }
  62
  63 #endif /* jis0201.h */