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DEFINITIONS
This source file includes following definitions.
- mbfl_filt_ident_2022jp_2004
/*
* "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_jis.c
* by rui hirokawa <hirokawa@php.net> on 18 aug 2011.
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "mbfilter.h"
#include "mbfilter_iso2022jp_2004.h"
#include "mbfilter_sjis_2004.h"
#include "unicode_table_jis2004.h"
#include "unicode_table_jis.h"
extern int mbfl_filt_conv_any_jis_flush(mbfl_convert_filter *filter);
static int mbfl_filt_ident_2022jp_2004(int c, mbfl_identify_filter *filter);
const mbfl_encoding mbfl_encoding_2022jp_2004 = {
mbfl_no_encoding_2022jp_2004,
"ISO-2022-JP-2004",
"ISO-2022-JP-2004",
NULL,
NULL,
MBFL_ENCTYPE_MBCS | MBFL_ENCTYPE_SHFTCODE | MBFL_ENCTYPE_GL_UNSAFE
};
const struct mbfl_identify_vtbl vtbl_identify_2022jp_2004 = {
mbfl_no_encoding_2022jp_2004,
mbfl_filt_ident_common_ctor,
mbfl_filt_ident_common_dtor,
mbfl_filt_ident_2022jp_2004
};
const struct mbfl_convert_vtbl vtbl_2022jp_2004_wchar = {
mbfl_no_encoding_2022jp_2004,
mbfl_no_encoding_wchar,
mbfl_filt_conv_common_ctor,
mbfl_filt_conv_common_dtor,
mbfl_filt_conv_jis2004_wchar,
mbfl_filt_conv_common_flush
};
const struct mbfl_convert_vtbl vtbl_wchar_2022jp_2004 = {
mbfl_no_encoding_wchar,
mbfl_no_encoding_2022jp_2004,
mbfl_filt_conv_common_ctor,
mbfl_filt_conv_common_dtor,
mbfl_filt_conv_wchar_jis2004,
mbfl_filt_conv_jis2004_flush
};
static int mbfl_filt_ident_2022jp_2004(int c, mbfl_identify_filter *filter)
{
retry:
switch (filter->status & 0xf) {
/* case 0x00: ASCII */
/* case 0x80: X 0212 */
/* case 0x90: X 0213 plane 1 */
/* case 0xa0: X 0213 plane 2 */
case 0:
if (c == 0x1b) {
filter->status += 2;
} else if (filter->status == 0x80 && c > 0x20 && c < 0x7f) { /* kanji first char */
filter->status += 1;
} else if (c >= 0 && c < 0x80) { /* latin, CTLs */
;
} else {
filter->flag = 1; /* bad */
}
break;
/* case 0x81: X 0208 second char */
case 1:
if (c == 0x1b) {
filter->status++;
} else {
filter->status &= ~0xf;
if (c < 0x21 || c > 0x7e) { /* bad */
filter->flag = 1;
}
}
break;
/* ESC */
case 2:
if (c == 0x24) { /* '$' */
filter->status++;
} else if (c == 0x28) { /* '(' */
filter->status += 3;
} else {
filter->flag = 1; /* bad */
filter->status &= ~0xf;
goto retry;
}
break;
/* ESC $ */
case 3:
if (c == 0x42) { /* 'B' */
filter->status = 0x80;
} else if (c == 0x28) { /* '(' */
filter->status++;
} else {
filter->flag = 1; /* bad */
filter->status &= ~0xf;
goto retry;
}
break;
/* ESC $ ( */
case 4:
if (c == 0x51) { /* JIS X 0213 plane 1 */
filter->status = 0x90;
} else if (c == 0x50) { /* JIS X 0213 plane 2 */
filter->status = 0xa0;
} else {
filter->flag = 1; /* bad */
filter->status &= ~0xf;
goto retry;
}
break;
/* ESC ( */
case 5:
if (c == 0x42) { /* 'B' */
filter->status = 0;
} else {
filter->flag = 1; /* bad */
filter->status &= ~0xf;
goto retry;
}
break;
default:
filter->status = 0;
break;
}
return c;
}