1 /*
2  * "streamable kanji code filter and converter"
3  * Copyright (c) 1998-2002 HappySize, Inc. All rights reserved.
4  *
5  * LICENSE NOTICES
6  *
7  * This file is part of "streamable kanji code filter and converter",
8  * which is distributed under the terms of GNU Lesser General Public
9  * License (version 2) as published by the Free Software Foundation.
10  *
11  * This software is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with "streamable kanji code filter and converter";
18  * if not, write to the Free Software Foundation, Inc., 59 Temple Place,
19  * Suite 330, Boston, MA  02111-1307  USA
20  *
21  * The author of this file:
22  *
23  */
24 /*
25  * The source code included in this files was separated from mbfilter.c
26  * by Moriyoshi Koizumi <moriyoshi@php.net> on 20 Dec 2002. The file
27  * mbfilter.c is included in this package .
28  *
29  */
30 
31 #ifdef HAVE_CONFIG_H
32 #include "config.h"
33 #endif
34 
35 #include <stddef.h>
36 
37 #include "mbfilter.h"
38 
39 const struct mbfl_convert_vtbl vtbl_8bit_wchar;
40 const struct mbfl_convert_vtbl vtbl_wchar_8bit;
41 static int mbfl_filt_conv_8bit_wchar(int c, mbfl_convert_filter *filter);
42 static int mbfl_filt_conv_wchar_8bit(int c, mbfl_convert_filter *filter);
43 
44 static const char *mbfl_encoding_8bit_aliases[] = {"binary", NULL};
45 
46 const mbfl_encoding mbfl_encoding_8bit = {
47 	mbfl_no_encoding_8bit,
48 	"8bit",
49 	"8bit",
50 	(const char *(*)[])&mbfl_encoding_8bit_aliases,
51 	NULL,
52 	MBFL_ENCTYPE_SBCS,
53 	&vtbl_8bit_wchar,
54 	&vtbl_wchar_8bit
55 };
56 
57 const struct mbfl_convert_vtbl vtbl_8bit_wchar = {
58 	mbfl_no_encoding_8bit,
59 	mbfl_no_encoding_wchar,
60 	mbfl_filt_conv_common_ctor,
61 	mbfl_filt_conv_common_dtor,
62 	mbfl_filt_conv_8bit_wchar,
63 	mbfl_filt_conv_common_flush
64 };
65 
66 const struct mbfl_convert_vtbl vtbl_wchar_8bit = {
67 	mbfl_no_encoding_wchar,
68 	mbfl_no_encoding_8bit,
69 	mbfl_filt_conv_common_ctor,
70 	mbfl_filt_conv_common_dtor,
71 	mbfl_filt_conv_wchar_8bit,
72 	mbfl_filt_conv_common_flush
73 };
74 
75 #define CK(statement) do { if ((statement) < 0) return (-1); } while (0)
76 
mbfl_filt_conv_8bit_wchar(int c,mbfl_convert_filter * filter)77 static int mbfl_filt_conv_8bit_wchar(int c, mbfl_convert_filter *filter)
78 {
79 	return (*filter->output_function)(c, filter->data);
80 }
81 
mbfl_filt_conv_wchar_8bit(int c,mbfl_convert_filter * filter)82 static int mbfl_filt_conv_wchar_8bit(int c, mbfl_convert_filter *filter)
83 {
84 	if (c >= 0 && c < 0x100) {
85 		CK((*filter->output_function)(c, filter->data));
86 	} else {
87 		CK(mbfl_filt_conv_illegal_output(c, filter));
88 	}
89 
90 	return c;
91 }
92