diff options
Diffstat (limited to 'newlib/libc/iconv/ces/us-ascii.c')
| -rw-r--r-- | newlib/libc/iconv/ces/us-ascii.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/newlib/libc/iconv/ces/us-ascii.c b/newlib/libc/iconv/ces/us-ascii.c new file mode 100644 index 000000000..2f213a7ed --- /dev/null +++ b/newlib/libc/iconv/ces/us-ascii.c @@ -0,0 +1,121 @@ +/* + * Copyright (c) 2003-2004, Artem B. Bityuckiy + * + * Redistribution and use in source and binary forms, with or without + * 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. + */ +#include "cesbi.h" + +#if defined (ICONV_TO_UCS_CES_US_ASCII) \ + || defined (ICONV_FROM_UCS_CES_US_ASCII) + +#include <_ansi.h> +#include <reent.h> +#include <sys/types.h> +#include "../lib/local.h" +#include "../lib/ucsconv.h" + +/* + * For optimization purposes us_ascii is implemented as separate CES converter. + * Another possible way is to add us_ascii CCS and use table-based CES converter. + */ + +#if defined (ICONV_FROM_UCS_CES_US_ASCII) +static size_t +_DEFUN(us_ascii_convert_from_ucs, (data, in, outbuf, outbytesleft), + _VOID_PTR data _AND + ucs4_t in _AND + unsigned char **outbuf _AND + size_t *outbytesleft) +{ + if (in > 0x7F) + return (size_t)ICONV_CES_INVALID_CHARACTER; + + *((char *)(*outbuf)) = (char)in; + + *outbuf += 1; + *outbytesleft -= 1; + + return 1; +} +#endif /* ICONV_FROM_UCS_CES_US_ASCII */ + +#if defined (ICONV_TO_UCS_CES_US_ASCII) +static ucs4_t +_DEFUN(us_ascii_convert_to_ucs, (data, inbuf, inbytesleft), + _VOID_PTR data _AND + _CONST unsigned char **inbuf _AND + size_t *inbytesleft) +{ + ucs4_t res; + + if (*inbytesleft < 1) + return (ucs4_t)ICONV_CES_BAD_SEQUENCE; + + res = (ucs4_t)**inbuf; + + if (res > 0x7F) + return (ucs4_t)ICONV_CES_INVALID_CHARACTER; + + *inbytesleft -= 1; + *inbuf += 1; + + return res; +} +#endif /* ICONV_TO_UCS_CES_US_ASCII */ + +static int +_DEFUN(us_ascii_get_mb_cur_max, (data), + _VOID_PTR data) +{ + return 2; +} + +#if defined (ICONV_TO_UCS_CES_US_ASCII) +_CONST iconv_to_ucs_ces_handlers_t +_iconv_to_ucs_ces_handlers_us_ascii = +{ + NULL, + NULL, + us_ascii_get_mb_cur_max, + NULL, + NULL, + NULL, + us_ascii_convert_to_ucs +}; +#endif + +#if defined (ICONV_FROM_UCS_CES_US_ASCII) +_CONST iconv_from_ucs_ces_handlers_t +_iconv_from_ucs_ces_handlers_us_ascii = +{ + NULL, + NULL, + us_ascii_get_mb_cur_max, + NULL, + NULL, + NULL, + us_ascii_convert_from_ucs +}; +#endif + +#endif /* ICONV_TO_UCS_CES_US_ASCII || ICONV_FROM_UCS_CES_US_ASCII */ + |