iconvdata/iso_11548-1.c

   1 /* Conversion to and from ISO 11548-1.
   2    Copyright (C) 1997-2019 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997,
   5         Samuel Thibault <samuel.thibault@ens-lyon.org>, 2005.
   6
   7    The GNU C Library is free software; you can redistribute it and/or
   8    modify it under the terms of the GNU Lesser General Public
   9    License as published by the Free Software Foundation; either
  10    version 2.1 of the License, or (at your option) any later version.
  11
  12    The GNU C Library is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15    Lesser General Public License for more details.
  16
  17    You should have received a copy of the GNU Lesser General Public
  18    License along with the GNU C Library; if not, see
  19    <http://www.gnu.org/licenses/>.  */
  20
  21 #include <dlfcn.h>
  22 #include <stdint.h>
  23
  24 /* Definitions used in the body of the `gconv' function.  */
  25 #define CHARSET_NAME            "ISO_11548-1//"
  26 #define FROM_LOOP               from_iso11548_1
  27 #define TO_LOOP                 to_iso11548_1
  28 #define DEFINE_INIT             1
  29 #define DEFINE_FINI             1
  30 #define MIN_NEEDED_FROM         1
  31 #define MIN_NEEDED_TO           4
  32 #define ONE_DIRECTION           0
  33
  34 #define BRAILLE_UCS_BASE        0x2800
  35
  36 /* First define the conversion function from ISO 11548-1 to UCS4.  */
  37 #define MIN_NEEDED_INPUT        MIN_NEEDED_FROM
  38 #define MIN_NEEDED_OUTPUT       MIN_NEEDED_TO
  39 #define LOOPFCT                 FROM_LOOP
  40 #define BODY \
  41   *((uint32_t *) outptr) = BRAILLE_UCS_BASE | (*inptr++);                     \
  42   outptr += sizeof (uint32_t);
  43 #define ONEBYTE_BODY \
  44   {                                                                           \
  45     return BRAILLE_UCS_BASE | c;                                              \
  46   }
  47 #include <iconv/loop.c>
  48
  49
  50 /* Next, define the other direction.  */
  51 #define MIN_NEEDED_INPUT        MIN_NEEDED_TO
  52 #define MIN_NEEDED_OUTPUT       MIN_NEEDED_FROM
  53 #define LOOPFCT                 TO_LOOP
  54 #define BODY \
  55   {                                                                           \
  56     uint32_t ch = *((const uint32_t *) inptr);                                \
  57     if (__glibc_unlikely ((ch & 0xffffff00u) != BRAILLE_UCS_BASE))            \
  58       {                                                                       \
  59         UNICODE_TAG_HANDLER (ch, 4);                                          \
  60                                                                               \
  61         /* We have an illegal character.  */                                  \
  62         STANDARD_TO_LOOP_ERR_HANDLER (4);                                     \
  63       }                                                                       \
  64     else                                                                      \
  65       *outptr++ = (unsigned char) (ch & 0xff);                                \
  66     inptr += 4;                                                               \
  67   }
  68 #define LOOP_NEED_FLAGS
  69 #include <iconv/loop.c>
  70
  71
  72 /* Now define the toplevel functions.  */
  73 #include <iconv/skeleton.c>