122 lines
3.4 KiB
C
122 lines
3.4 KiB
C
/*
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* Copyright (c) 2003-2004, Artem B. Bityuckiy
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*
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* Redistribution and use in source and binary forms, with or without
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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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#include "cesbi.h"
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#if defined (ICONV_TO_UCS_CES_US_ASCII) \
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|| defined (ICONV_FROM_UCS_CES_US_ASCII)
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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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/*
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* For optimization purposes us_ascii is implemented as separate CES converter.
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* Another possible way is to add us_ascii CCS and use table-based CES converter.
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*/
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#if defined (ICONV_FROM_UCS_CES_US_ASCII)
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static size_t
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_DEFUN(us_ascii_convert_from_ucs, (data, in, outbuf, outbytesleft),
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_VOID_PTR 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 (in > 0x7F)
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return (size_t)ICONV_CES_INVALID_CHARACTER;
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*((char *)(*outbuf)) = (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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#endif /* ICONV_FROM_UCS_CES_US_ASCII */
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#if defined (ICONV_TO_UCS_CES_US_ASCII)
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static ucs4_t
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_DEFUN(us_ascii_convert_to_ucs, (data, inbuf, inbytesleft),
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_VOID_PTR data,
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_CONST unsigned char **inbuf,
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size_t *inbytesleft)
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{
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ucs4_t res;
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if (*inbytesleft < 1)
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return (ucs4_t)ICONV_CES_BAD_SEQUENCE;
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res = (ucs4_t)**inbuf;
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if (res > 0x7F)
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return (ucs4_t)ICONV_CES_INVALID_CHARACTER;
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*inbytesleft -= 1;
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*inbuf += 1;
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return res;
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}
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#endif /* ICONV_TO_UCS_CES_US_ASCII */
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static int
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_DEFUN(us_ascii_get_mb_cur_max, (data),
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_VOID_PTR data)
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{
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return 2;
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}
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#if defined (ICONV_TO_UCS_CES_US_ASCII)
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_CONST iconv_to_ucs_ces_handlers_t
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_iconv_to_ucs_ces_handlers_us_ascii =
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{
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NULL,
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NULL,
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us_ascii_get_mb_cur_max,
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NULL,
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NULL,
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NULL,
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us_ascii_convert_to_ucs
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};
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#endif
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#if defined (ICONV_FROM_UCS_CES_US_ASCII)
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_CONST iconv_from_ucs_ces_handlers_t
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_iconv_from_ucs_ces_handlers_us_ascii =
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{
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NULL,
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NULL,
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us_ascii_get_mb_cur_max,
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NULL,
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NULL,
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NULL,
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us_ascii_convert_from_ucs
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};
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#endif
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#endif /* ICONV_TO_UCS_CES_US_ASCII || ICONV_FROM_UCS_CES_US_ASCII */
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