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