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73 lines
2.4 KiB
C
73 lines
2.4 KiB
C
/* Conversion to and from ISO 11548-1.
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Copyright (C) 1997-2014 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997,
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Samuel Thibault <samuel.thibault@ens-lyon.org>, 2005.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <dlfcn.h>
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#include <stdint.h>
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/* Definitions used in the body of the `gconv' function. */
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#define CHARSET_NAME "ISO_11548-1//"
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#define FROM_LOOP from_iso11548_1
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#define TO_LOOP to_iso11548_1
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#define DEFINE_INIT 1
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#define DEFINE_FINI 1
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#define MIN_NEEDED_FROM 1
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#define MIN_NEEDED_TO 4
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#define BRAILLE_UCS_BASE 0x2800
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/* First define the conversion function from ISO 11548-1 to UCS4. */
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#define MIN_NEEDED_INPUT MIN_NEEDED_FROM
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#define MIN_NEEDED_OUTPUT MIN_NEEDED_TO
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#define LOOPFCT FROM_LOOP
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#define BODY \
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*((uint32_t *) outptr) = BRAILLE_UCS_BASE | (*inptr++); \
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outptr += sizeof (uint32_t);
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#define ONEBYTE_BODY \
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{ \
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return BRAILLE_UCS_BASE | c; \
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}
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#include <iconv/loop.c>
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/* Next, define the other direction. */
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#define MIN_NEEDED_INPUT MIN_NEEDED_TO
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#define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM
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#define LOOPFCT TO_LOOP
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#define BODY \
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{ \
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uint32_t ch = *((const uint32_t *) inptr); \
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if (__builtin_expect ((ch & 0xffffff00u) != BRAILLE_UCS_BASE, 0)) \
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{ \
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UNICODE_TAG_HANDLER (ch, 4); \
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\
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/* We have an illegal character. */ \
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STANDARD_TO_LOOP_ERR_HANDLER (4); \
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} \
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else \
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*outptr++ = (unsigned char) (ch & 0xff); \
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inptr += 4; \
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}
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#define LOOP_NEED_FLAGS
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#include <iconv/loop.c>
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/* Now define the toplevel functions. */
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#include <iconv/skeleton.c>
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