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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 part: Wez Furlong <wez@thebrainroom.com>
*
*/
/*
* the source code included in this files was separated from mbfilter.c
* by moriyoshi koizumi <moriyoshi@php.net> on 4 dec 2002.
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "mbfilter.h"
#include "mbfilter_cp1252.h"
#include "unicode_table_cp1252.h"
static int mbfl_filt_ident_cp1252(int c, mbfl_identify_filter *filter);
static const char *mbfl_encoding_cp1252_aliases[] = {"cp1252", NULL};
const mbfl_encoding mbfl_encoding_cp1252 = {
mbfl_no_encoding_cp1252,
"Windows-1252",
"Windows-1252",
(const char *(*)[])&mbfl_encoding_cp1252_aliases,
NULL,
MBFL_ENCTYPE_SBCS
};
const struct mbfl_identify_vtbl vtbl_identify_cp1252 = {
mbfl_no_encoding_cp1252,
mbfl_filt_ident_common_ctor,
mbfl_filt_ident_common_dtor,
mbfl_filt_ident_cp1252
};
const struct mbfl_convert_vtbl vtbl_cp1252_wchar = {
mbfl_no_encoding_cp1252,
mbfl_no_encoding_wchar,
mbfl_filt_conv_common_ctor,
mbfl_filt_conv_common_dtor,
mbfl_filt_conv_cp1252_wchar,
mbfl_filt_conv_common_flush
};
const struct mbfl_convert_vtbl vtbl_wchar_cp1252 = {
mbfl_no_encoding_wchar,
mbfl_no_encoding_cp1252,
mbfl_filt_conv_common_ctor,
mbfl_filt_conv_common_dtor,
mbfl_filt_conv_wchar_cp1252,
mbfl_filt_conv_common_flush
};
#define CK(statement) do { if ((statement) < 0) return (-1); } while (0)
/*
* wchar => cp1252
*/
int mbfl_filt_conv_wchar_cp1252(int c, mbfl_convert_filter *filter)
{
int s=-1, n;
if (c >= 0x100) {
/* look it up from the cp1252 table */
s = -1;
n = 31;
while (n >= 0) {
if (c == cp1252_ucs_table[n] && c != 0xfffe) {
s = 0x80 + n;
break;
}
n--;
}
if (s <= 0 && (c & ~MBFL_WCSPLANE_MASK) == MBFL_WCSPLANE_8859_1)
{
s = c & MBFL_WCSPLANE_MASK;
}
}
else if (c >= 0 && c < 0x100) {
s = c;
}
if (s >= 0) {
CK((*filter->output_function)(s, filter->data));
} else {
if (filter->illegal_mode != MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE) {
CK(mbfl_filt_conv_illegal_output(c, filter));
}
}
return c;
}
/*
* cp1252 => wchar
*/
int mbfl_filt_conv_cp1252_wchar(int c, mbfl_convert_filter *filter)
{
int s;
if (c >= 0x80 && c < 0xa0) {
s = cp1252_ucs_table[c - 0x80];
} else {
s = c;
}
CK((*filter->output_function)(s, filter->data));
return c;
}
/* We only distinguish the MS extensions to ISO-8859-1.
* Actually, this is pretty much a NO-OP, since the identification
* system doesn't allow us to discriminate between a positive match,
* a possible match and a definite non-match.
* The problem here is that cp1252 looks like SJIS for certain chars.
* */
static int mbfl_filt_ident_cp1252(int c, mbfl_identify_filter *filter)
{
if (c >= 0x80 && c < 0xa0)
filter->flag = 0;
else
filter->flag = 1; /* not it */
return c;
}
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