newlib-cygwin/newlib/libc/iconv/ces/table-pcs.c

170 lines
5.2 KiB
C

/*
* Copyright (c) 2003-2004, Artem B. Bityuckiy
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* This CES converter is just an simple extension of table CES converter.
* This CES converter is used for 16 bit CCSes which include 7bit
* Portable Characters Set (PCS) (equivalent to ASCII) (example: BIG5).
*/
#include "cesbi.h"
#if defined (ICONV_TO_UCS_CES_TABLE_PCS) \
|| defined (ICONV_FROM_UCS_CES_TABLE_PCS)
#include <_ansi.h>
#include <reent.h>
#include <sys/types.h>
#include "../lib/local.h"
#include "../lib/ucsconv.h"
#if defined (ICONV_FROM_UCS_CES_TABLE_PCS)
static size_t
_DEFUN(table_pcs_convert_from_ucs, (data, in, outbuf, outbytesleft),
_VOID_PTR data _AND
ucs4_t in _AND
unsigned char **outbuf _AND
size_t *outbytesleft)
{
if (*outbytesleft < 1)
return (size_t)ICONV_CES_NOSPACE;
if (in < 0x80)
{
**outbuf = (unsigned char)in;
*outbuf += 1;
*outbytesleft -= 1;
return 1;
}
return _iconv_from_ucs_ces_handlers_table.convert_from_ucs (
data,
in,
outbuf,
outbytesleft);
}
static _VOID_PTR
_DEFUN(table_pcs_from_ucs_init, (rptr, encoding),
struct _reent *rptr _AND
_CONST char *encoding)
{
return _iconv_from_ucs_ces_handlers_table.init (rptr, encoding);
}
static size_t
_DEFUN(table_pcs_from_ucs_close, (rptr, data),
struct _reent *rptr _AND
_VOID_PTR data)
{
return _iconv_from_ucs_ces_handlers_table.close (rptr, data);
}
static int
_DEFUN(table_pcs_from_ucs_get_mb_cur_max, (data),
_VOID_PTR data)
{
return _iconv_from_ucs_ces_handlers_table.get_mb_cur_max (data);
}
#endif /* ICONV_FROM_UCS_CES_TABLE_PCS */
#if defined (ICONV_TO_UCS_CES_TABLE_PCS)
static ucs4_t
_DEFUN(table_pcs_convert_to_ucs, (data, inbuf, inbytesleft),
_VOID_PTR data _AND
_CONST unsigned char **inbuf _AND
size_t *inbytesleft)
{
if (*inbytesleft < 1)
return (ucs4_t)ICONV_CES_BAD_SEQUENCE;
if (**inbuf < 0x80)
{
*inbytesleft -= 1;
*inbuf += 1;
return (ucs4_t)(*(*inbuf - 1));
}
return _iconv_to_ucs_ces_handlers_table.convert_to_ucs (
data,
inbuf,
inbytesleft);
}
static _VOID_PTR
_DEFUN(table_pcs_to_ucs_init, (rptr, encoding),
struct _reent *rptr _AND
_CONST char *encoding)
{
return _iconv_to_ucs_ces_handlers_table.init (rptr, encoding);
}
static size_t
_DEFUN(table_pcs_to_ucs_close, (rptr, data),
struct _reent *rptr _AND
_VOID_PTR data)
{
return _iconv_to_ucs_ces_handlers_table.close (rptr, data);
}
static int
_DEFUN(table_pcs_to_ucs_get_mb_cur_max, (data),
_VOID_PTR data)
{
return _iconv_to_ucs_ces_handlers_table.get_mb_cur_max (data);
}
#endif /* ICONV_TO_UCS_CES_TABLE_PCS */
#if defined (ICONV_FROM_UCS_CES_TABLE_PCS)
_CONST iconv_from_ucs_ces_handlers_t
_iconv_from_ucs_ces_handlers_table_pcs =
{
table_pcs_from_ucs_init,
table_pcs_from_ucs_close,
table_pcs_from_ucs_get_mb_cur_max,
NULL,
NULL,
NULL,
table_pcs_convert_from_ucs
};
#endif
#if defined (ICONV_TO_UCS_CES_TABLE_PCS)
_CONST iconv_to_ucs_ces_handlers_t
_iconv_to_ucs_ces_handlers_table_pcs =
{
table_pcs_to_ucs_init,
table_pcs_to_ucs_close,
table_pcs_to_ucs_get_mb_cur_max,
NULL,
NULL,
NULL,
table_pcs_convert_to_ucs
};
#endif
#endif /* ICONV_TO_UCS_CES_TABLE_PCS || ICONV_FROM_UCS_CES_TABLE_PCS */