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/*
* "streamable kanji code filter and converter"
* Copyright (c) 1998-2002 HappySize, Inc. All rights reserved.
*
* LICENSE NOTICES
*
* This file is part of "streamable kanji code filter and converter",
* which is distributed under the terms of GNU Lesser General Public
* License (version 2) as published by the Free Software Foundation.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with "streamable kanji code filter and converter";
* if not, write to the Free Software Foundation, Inc., 59 Temple Place,
* Suite 330, Boston, MA 02111-1307 USA
*
* The author of this file:
*
*/
/*
* The source code included in this files was separated from mbfilter.c
* by Moriyoshi Koizumi <moriyoshi@php.net> on 4 Dec 2002. The file
* mbfilter.c is included in this package .
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "mbfilter.h"
#include "mbfilter_ascii.h"
static int mbfl_filt_ident_ascii(int c, mbfl_identify_filter *filter);
static const char *mbfl_encoding_ascii_aliases[] = {"ANSI_X3.4-1968", "iso-ir-6", "ANSI_X3.4-1986", "ISO_646.irv:1991", "US-ASCII", "ISO646-US", "us", "IBM367", "cp367", "csASCII", NULL};
const mbfl_encoding mbfl_encoding_ascii = {
mbfl_no_encoding_ascii,
"ASCII",
"US-ASCII", /* preferred MIME name */
(const char *(*)[])&mbfl_encoding_ascii_aliases,
NULL,
MBFL_ENCTYPE_SBCS
};
const struct mbfl_identify_vtbl vtbl_identify_ascii = {
mbfl_no_encoding_ascii,
mbfl_filt_ident_common_ctor,
mbfl_filt_ident_common_dtor,
mbfl_filt_ident_ascii
};
const struct mbfl_convert_vtbl vtbl_ascii_wchar = {
mbfl_no_encoding_ascii,
mbfl_no_encoding_wchar,
mbfl_filt_conv_common_ctor,
mbfl_filt_conv_common_dtor,
mbfl_filt_conv_ascii_wchar,
mbfl_filt_conv_common_flush
};
const struct mbfl_convert_vtbl vtbl_wchar_ascii = {
mbfl_no_encoding_wchar,
mbfl_no_encoding_ascii,
mbfl_filt_conv_common_ctor,
mbfl_filt_conv_common_dtor,
mbfl_filt_conv_wchar_ascii,
mbfl_filt_conv_common_flush
};
#define CK(statement) do { if ((statement) < 0) return (-1); } while (0)
/*
* ASCII => wchar
*/
int mbfl_filt_conv_ascii_wchar(int c, mbfl_convert_filter *filter)
{
return (*filter->output_function)(c, filter->data);
}
/*
* wchar => ASCII
*/
int mbfl_filt_conv_wchar_ascii(int c, mbfl_convert_filter *filter)
{
if (c >= 0 && c < 0x80) {
CK((*filter->output_function)(c, filter->data));
} else {
if (filter->illegal_mode != MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE) {
CK(mbfl_filt_conv_illegal_output(c, filter));
}
}
return c;
}
static int mbfl_filt_ident_ascii(int c, mbfl_identify_filter *filter)
{
if (c >= 0x20 && c < 0x80) {
;
} else if (c == 0x0d || c == 0x0a || c == 0x09 || c == 0) { /* CR or LF or HTAB or null */
;
} else {
filter->flag = 1;
}
return c;
}
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