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DEFINITIONS
This source file includes following definitions.
- mbfl_filt_conv_jis_wchar
- mbfl_filt_conv_wchar_jis
- mbfl_filt_conv_wchar_2022jp
- mbfl_filt_conv_any_jis_flush
- mbfl_filt_ident_jis
- mbfl_filt_ident_2022jp
/*
* "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_ja.c
* by moriyoshi koizumi <moriyoshi@php.net> on 4 dec 2002.
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "mbfilter.h"
#include "mbfilter_jis.h"
#include "unicode_table_cp932_ext.h"
#include "unicode_table_jis.h"
static int mbfl_filt_ident_jis(int c, mbfl_identify_filter *filter);
static int mbfl_filt_ident_2022jp(int c, mbfl_identify_filter *filter);
const mbfl_encoding mbfl_encoding_jis = {
mbfl_no_encoding_jis,
"JIS",
"ISO-2022-JP",
NULL,
NULL,
MBFL_ENCTYPE_MBCS | MBFL_ENCTYPE_SHFTCODE | MBFL_ENCTYPE_GL_UNSAFE
};
const mbfl_encoding mbfl_encoding_2022jp = {
mbfl_no_encoding_2022jp,
"ISO-2022-JP",
"ISO-2022-JP",
NULL,
NULL,
MBFL_ENCTYPE_MBCS | MBFL_ENCTYPE_SHFTCODE | MBFL_ENCTYPE_GL_UNSAFE
};
const struct mbfl_identify_vtbl vtbl_identify_jis = {
mbfl_no_encoding_jis,
mbfl_filt_ident_common_ctor,
mbfl_filt_ident_common_dtor,
mbfl_filt_ident_jis
};
const struct mbfl_identify_vtbl vtbl_identify_2022jp = {
mbfl_no_encoding_2022jp,
mbfl_filt_ident_common_ctor,
mbfl_filt_ident_common_dtor,
mbfl_filt_ident_2022jp
};
const struct mbfl_convert_vtbl vtbl_jis_wchar = {
mbfl_no_encoding_jis,
mbfl_no_encoding_wchar,
mbfl_filt_conv_common_ctor,
mbfl_filt_conv_common_dtor,
mbfl_filt_conv_jis_wchar,
mbfl_filt_conv_common_flush
};
const struct mbfl_convert_vtbl vtbl_wchar_jis = {
mbfl_no_encoding_wchar,
mbfl_no_encoding_jis,
mbfl_filt_conv_common_ctor,
mbfl_filt_conv_common_dtor,
mbfl_filt_conv_wchar_jis,
mbfl_filt_conv_any_jis_flush
};
const struct mbfl_convert_vtbl vtbl_2022jp_wchar = {
mbfl_no_encoding_2022jp,
mbfl_no_encoding_wchar,
mbfl_filt_conv_common_ctor,
mbfl_filt_conv_common_dtor,
mbfl_filt_conv_jis_wchar,
mbfl_filt_conv_common_flush
};
const struct mbfl_convert_vtbl vtbl_wchar_2022jp = {
mbfl_no_encoding_wchar,
mbfl_no_encoding_2022jp,
mbfl_filt_conv_common_ctor,
mbfl_filt_conv_common_dtor,
mbfl_filt_conv_wchar_2022jp,
mbfl_filt_conv_any_jis_flush
};
#define CK(statement) do { if ((statement) < 0) return (-1); } while (0)
/*
* JIS => wchar
*/
int
mbfl_filt_conv_jis_wchar(int c, mbfl_convert_filter *filter)
{
int c1, s, w;
retry:
switch (filter->status & 0xf) {
/* case 0x00: ASCII */
/* case 0x10: X 0201 latin */
/* case 0x20: X 0201 kana */
/* case 0x80: X 0208 */
/* case 0x90: X 0212 */
case 0:
if (c == 0x1b) {
filter->status += 2;
} else if (c == 0x0e) { /* "kana in" */
filter->status = 0x20;
} else if (c == 0x0f) { /* "kana out" */
filter->status = 0;
} else if (filter->status == 0x10 && c == 0x5c) { /* YEN SIGN */
CK((*filter->output_function)(0xa5, filter->data));
} else if (filter->status == 0x10 && c == 0x7e) { /* OVER LINE */
CK((*filter->output_function)(0x203e, filter->data));
} else if (filter->status == 0x20 && c > 0x20 && c < 0x60) { /* kana */
CK((*filter->output_function)(0xff40 + c, filter->data));
} else if ((filter->status == 0x80 || filter->status == 0x90) && c > 0x20 && c < 0x7f) { /* kanji first char */
filter->cache = c;
filter->status += 1;
} else if (c >= 0 && c < 0x80) { /* latin, CTLs */
CK((*filter->output_function)(c, filter->data));
} else if (c > 0xa0 && c < 0xe0) { /* GR kana */
CK((*filter->output_function)(0xfec0 + c, filter->data));
} else {
w = c & MBFL_WCSGROUP_MASK;
w |= MBFL_WCSGROUP_THROUGH;
CK((*filter->output_function)(w, filter->data));
}
break;
/* case 0x81: X 0208 second char */
/* case 0x91: X 0212 second char */
case 1:
filter->status &= ~0xf;
c1 = filter->cache;
if (c > 0x20 && c < 0x7f) {
s = (c1 - 0x21)*94 + c - 0x21;
if (filter->status == 0x80) {
if (s >= 0 && s < jisx0208_ucs_table_size) {
w = jisx0208_ucs_table[s];
} else {
w = 0;
}
if (w <= 0) {
w = (c1 << 8) | c;
w &= MBFL_WCSPLANE_MASK;
w |= MBFL_WCSPLANE_JIS0208;
}
} else {
if (s >= 0 && s < jisx0212_ucs_table_size) {
w = jisx0212_ucs_table[s];
} else {
w = 0;
}
if (w <= 0) {
w = (c1 << 8) | c;
w &= MBFL_WCSPLANE_MASK;
w |= MBFL_WCSPLANE_JIS0212;
}
}
CK((*filter->output_function)(w, filter->data));
} else if (c == 0x1b) {
filter->status += 2;
} else if ((c >= 0 && c < 0x21) || c == 0x7f) { /* CTLs */
CK((*filter->output_function)(c, filter->data));
} else {
w = (c1 << 8) | c;
w &= MBFL_WCSGROUP_MASK;
w |= MBFL_WCSGROUP_THROUGH;
CK((*filter->output_function)(w, filter->data));
}
break;
/* ESC */
/* case 0x02: */
/* case 0x12: */
/* case 0x22: */
/* case 0x82: */
/* case 0x92: */
case 2:
if (c == 0x24) { /* '$' */
filter->status++;
} else if (c == 0x28) { /* '(' */
filter->status += 3;
} else {
filter->status &= ~0xf;
CK((*filter->output_function)(0x1b, filter->data));
goto retry;
}
break;
/* ESC $ */
/* case 0x03: */
/* case 0x13: */
/* case 0x23: */
/* case 0x83: */
/* case 0x93: */
case 3:
if (c == 0x40 || c == 0x42) { /* '@' or 'B' */
filter->status = 0x80;
} else if (c == 0x28) { /* '(' */
filter->status++;
} else {
filter->status &= ~0xf;
CK((*filter->output_function)(0x1b, filter->data));
CK((*filter->output_function)(0x24, filter->data));
goto retry;
}
break;
/* ESC $ ( */
/* case 0x04: */
/* case 0x14: */
/* case 0x24: */
/* case 0x84: */
/* case 0x94: */
case 4:
if (c == 0x40 || c == 0x42) { /* '@' or 'B' */
filter->status = 0x80;
} else if (c == 0x44) { /* 'D' */
filter->status = 0x90;
} else {
filter->status &= ~0xf;
CK((*filter->output_function)(0x1b, filter->data));
CK((*filter->output_function)(0x24, filter->data));
CK((*filter->output_function)(0x28, filter->data));
goto retry;
}
break;
/* ESC ( */
/* case 0x05: */
/* case 0x15: */
/* case 0x25: */
/* case 0x85: */
/* case 0x95: */
case 5:
if (c == 0x42 || c == 0x48) { /* 'B' or 'H' */
filter->status = 0;
} else if (c == 0x4a) { /* 'J' */
filter->status = 0x10;
} else if (c == 0x49) { /* 'I' */
filter->status = 0x20;
} else {
filter->status &= ~0xf;
CK((*filter->output_function)(0x1b, filter->data));
CK((*filter->output_function)(0x28, filter->data));
goto retry;
}
break;
default:
filter->status = 0;
break;
}
return c;
}
/*
* wchar => JIS
*/
int
mbfl_filt_conv_wchar_jis(int c, mbfl_convert_filter *filter)
{
int c1, s;
s = 0;
if (c >= ucs_a1_jis_table_min && c < ucs_a1_jis_table_max) {
s = ucs_a1_jis_table[c - ucs_a1_jis_table_min];
} else if (c >= ucs_a2_jis_table_min && c < ucs_a2_jis_table_max) {
s = ucs_a2_jis_table[c - ucs_a2_jis_table_min];
} else if (c >= ucs_i_jis_table_min && c < ucs_i_jis_table_max) {
s = ucs_i_jis_table[c - ucs_i_jis_table_min];
} else if (c >= ucs_r_jis_table_min && c < ucs_r_jis_table_max) {
s = ucs_r_jis_table[c - ucs_r_jis_table_min];
}
if (s <= 0) {
c1 = c & ~MBFL_WCSPLANE_MASK;
if (c1 == MBFL_WCSPLANE_JIS0208) {
s = c & MBFL_WCSPLANE_MASK;
} else if (c1 == MBFL_WCSPLANE_JIS0212) {
s = c & MBFL_WCSPLANE_MASK;
s |= 0x8080;
} else if (c == 0xa5) { /* YEN SIGN */
s = 0x1005c;
} else if (c == 0x203e) { /* OVER LINE */
s = 0x1007e;
} else if (c == 0xff3c) { /* FULLWIDTH REVERSE SOLIDUS */
s = 0x2140;
} else if (c == 0xff5e) { /* FULLWIDTH TILDE */
s = 0x2141;
} else if (c == 0x2225) { /* PARALLEL TO */
s = 0x2142;
} else if (c == 0xff0d) { /* FULLWIDTH HYPHEN-MINUS */
s = 0x215d;
} else if (c == 0xffe0) { /* FULLWIDTH CENT SIGN */
s = 0x2171;
} else if (c == 0xffe1) { /* FULLWIDTH POUND SIGN */
s = 0x2172;
} else if (c == 0xffe2) { /* FULLWIDTH NOT SIGN */
s = 0x224c;
}
if (c == 0) {
s = 0;
} else if (s <= 0) {
s = -1;
}
}
if (s >= 0) {
if (s < 0x80) { /* ASCII */
if ((filter->status & 0xff00) != 0) {
CK((*filter->output_function)(0x1b, filter->data)); /* ESC */
CK((*filter->output_function)(0x28, filter->data)); /* '(' */
CK((*filter->output_function)(0x42, filter->data)); /* 'B' */
}
filter->status = 0;
CK((*filter->output_function)(s, filter->data));
} else if (s < 0x100) { /* kana */
if ((filter->status & 0xff00) != 0x100) {
CK((*filter->output_function)(0x1b, filter->data)); /* ESC */
CK((*filter->output_function)(0x28, filter->data)); /* '(' */
CK((*filter->output_function)(0x49, filter->data)); /* 'I' */
}
filter->status = 0x100;
CK((*filter->output_function)(s & 0x7f, filter->data));
} else if (s < 0x8080) { /* X 0208 */
if ((filter->status & 0xff00) != 0x200) {
CK((*filter->output_function)(0x1b, filter->data)); /* ESC */
CK((*filter->output_function)(0x24, filter->data)); /* '$' */
CK((*filter->output_function)(0x42, filter->data)); /* 'B' */
}
filter->status = 0x200;
CK((*filter->output_function)((s >> 8) & 0x7f, filter->data));
CK((*filter->output_function)(s & 0x7f, filter->data));
} else if (s < 0x10000) { /* X 0212 */
if ((filter->status & 0xff00) != 0x300) {
CK((*filter->output_function)(0x1b, filter->data)); /* ESC */
CK((*filter->output_function)(0x24, filter->data)); /* '$' */
CK((*filter->output_function)(0x28, filter->data)); /* '(' */
CK((*filter->output_function)(0x44, filter->data)); /* 'D' */
}
filter->status = 0x300;
CK((*filter->output_function)((s >> 8) & 0x7f, filter->data));
CK((*filter->output_function)(s & 0x7f, filter->data));
} else { /* X 0201 latin */
if ((filter->status & 0xff00) != 0x400) {
CK((*filter->output_function)(0x1b, filter->data)); /* ESC */
CK((*filter->output_function)(0x28, filter->data)); /* '(' */
CK((*filter->output_function)(0x4a, filter->data)); /* 'J' */
}
filter->status = 0x400;
CK((*filter->output_function)(s & 0x7f, filter->data));
}
} else {
if (filter->illegal_mode != MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE) {
CK(mbfl_filt_conv_illegal_output(c, filter));
}
}
return c;
}
/*
* wchar => ISO-2022-JP
*/
int
mbfl_filt_conv_wchar_2022jp(int c, mbfl_convert_filter *filter)
{
int s;
s = 0;
if (c >= ucs_a1_jis_table_min && c < ucs_a1_jis_table_max) {
s = ucs_a1_jis_table[c - ucs_a1_jis_table_min];
} else if (c >= ucs_a2_jis_table_min && c < ucs_a2_jis_table_max) {
s = ucs_a2_jis_table[c - ucs_a2_jis_table_min];
} else if (c >= ucs_i_jis_table_min && c < ucs_i_jis_table_max) {
s = ucs_i_jis_table[c - ucs_i_jis_table_min];
} else if (c >= ucs_r_jis_table_min && c < ucs_r_jis_table_max) {
s = ucs_r_jis_table[c - ucs_r_jis_table_min];
}
if (s <= 0) {
if (c == 0xa5) { /* YEN SIGN */
s = 0x1005c;
} else if (c == 0x203e) { /* OVER LINE */
s = 0x1007e;
} else if (c == 0xff3c) { /* FULLWIDTH REVERSE SOLIDUS */
s = 0x2140;
} else if (c == 0xff5e) { /* FULLWIDTH TILDE */
s = 0x2141;
} else if (c == 0x2225) { /* PARALLEL TO */
s = 0x2142;
} else if (c == 0xff0d) { /* FULLWIDTH HYPHEN-MINUS */
s = 0x215d;
} else if (c == 0xffe0) { /* FULLWIDTH CENT SIGN */
s = 0x2171;
} else if (c == 0xffe1) { /* FULLWIDTH POUND SIGN */
s = 0x2172;
} else if (c == 0xffe2) { /* FULLWIDTH NOT SIGN */
s = 0x224c;
}
if (c == 0) {
s = 0;
} else if (s <= 0) {
s = -1;
}
} else if ((s >= 0x80 && s < 0x2121) || (s > 0x8080)) {
s = -1;
}
if (s >= 0) {
if (s < 0x80) { /* ASCII */
if ((filter->status & 0xff00) != 0) {
CK((*filter->output_function)(0x1b, filter->data)); /* ESC */
CK((*filter->output_function)(0x28, filter->data)); /* '(' */
CK((*filter->output_function)(0x42, filter->data)); /* 'B' */
}
filter->status = 0;
CK((*filter->output_function)(s, filter->data));
} else if (s < 0x10000) { /* X 0208 */
if ((filter->status & 0xff00) != 0x200) {
CK((*filter->output_function)(0x1b, filter->data)); /* ESC */
CK((*filter->output_function)(0x24, filter->data)); /* '$' */
CK((*filter->output_function)(0x42, filter->data)); /* 'B' */
}
filter->status = 0x200;
CK((*filter->output_function)((s >> 8) & 0x7f, filter->data));
CK((*filter->output_function)(s & 0x7f, filter->data));
} else { /* X 0201 latin */
if ((filter->status & 0xff00) != 0x400) {
CK((*filter->output_function)(0x1b, filter->data)); /* ESC */
CK((*filter->output_function)(0x28, filter->data)); /* '(' */
CK((*filter->output_function)(0x4a, filter->data)); /* 'J' */
}
filter->status = 0x400;
CK((*filter->output_function)(s & 0x7f, filter->data));
}
} else {
if (filter->illegal_mode != MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE) {
CK(mbfl_filt_conv_illegal_output(c, filter));
}
}
return c;
}
int
mbfl_filt_conv_any_jis_flush(mbfl_convert_filter *filter)
{
/* back to latin */
if ((filter->status & 0xff00) != 0) {
CK((*filter->output_function)(0x1b, filter->data)); /* ESC */
CK((*filter->output_function)(0x28, filter->data)); /* '(' */
CK((*filter->output_function)(0x42, filter->data)); /* 'B' */
}
filter->status &= 0xff;
if (filter->flush_function != NULL) {
return (*filter->flush_function)(filter->data);
}
return 0;
}
static int mbfl_filt_ident_jis(int c, mbfl_identify_filter *filter)
{
retry:
switch (filter->status & 0xf) {
/* case 0x00: ASCII */
/* case 0x10: X 0201 latin */
/* case 0x20: X 0201 kana */
/* case 0x80: X 0208 */
/* case 0x90: X 0212 */
case 0:
if (c == 0x1b) {
filter->status += 2;
} else if (c == 0x0e) { /* "kana in" */
filter->status = 0x20;
} else if (c == 0x0f) { /* "kana out" */
filter->status = 0;
} else if ((filter->status == 0x80 || filter->status == 0x90) && 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 0x91: X 0212 second char */
case 1:
filter->status &= ~0xf;
if (c == 0x1b) {
goto retry;
} else 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 == 0x40 || c == 0x42) { /* '@' or '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 == 0x40 || c == 0x42) { /* '@' or 'B' */
filter->status = 0x80;
} else if (c == 0x44) { /* 'D' */
filter->status = 0x90;
} else {
filter->flag = 1; /* bad */
filter->status &= ~0xf;
goto retry;
}
break;
/* ESC ( */
case 5:
if (c == 0x42 || c == 0x48) { /* 'B' or 'H' */
filter->status = 0;
} else if (c == 0x4a) { /* 'J' */
filter->status = 0x10;
} else if (c == 0x49) { /* 'I' */
filter->status = 0x20;
} else {
filter->flag = 1; /* bad */
filter->status &= ~0xf;
goto retry;
}
break;
default:
filter->status = 0;
break;
}
return c;
}
static int mbfl_filt_ident_2022jp(int c, mbfl_identify_filter *filter)
{
retry:
switch (filter->status & 0xf) {
/* case 0x00: ASCII */
/* case 0x10: X 0201 latin */
/* case 0x80: X 0208 */
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 == 0x40 || c == 0x42) { /* '@' or 'B' */
filter->status = 0x80;
} else {
filter->flag = 1; /* bad */
filter->status &= ~0xf;
goto retry;
}
break;
/* ESC ( */
case 5:
if (c == 0x42) { /* 'B' */
filter->status = 0;
} else if (c == 0x4a) { /* 'J' */
filter->status = 0x10;
} else {
filter->flag = 1; /* bad */
filter->status &= ~0xf;
goto retry;
}
break;
default:
filter->status = 0;
break;
}
return c;
}