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 #include <stddef.h>
32 
33 #include "mbfilter.h"
34 
35 const struct mbfl_convert_vtbl vtbl_8bit_wchar;
36 const struct mbfl_convert_vtbl vtbl_wchar_8bit;
37 static int mbfl_filt_conv_8bit_wchar(int c, mbfl_convert_filter *filter);
38 static int mbfl_filt_conv_wchar_8bit(int c, mbfl_convert_filter *filter);
39 
40 static const char *mbfl_encoding_8bit_aliases[] = {"binary", NULL};
41 
42 const mbfl_encoding mbfl_encoding_8bit = {
43 	mbfl_no_encoding_8bit,
44 	"8bit",
45 	"8bit",
46 	mbfl_encoding_8bit_aliases,
47 	NULL,
48 	MBFL_ENCTYPE_SBCS,
49 	&vtbl_8bit_wchar,
50 	&vtbl_wchar_8bit,
51 	NULL
52 };
53 
54 const struct mbfl_convert_vtbl vtbl_8bit_wchar = {
55 	mbfl_no_encoding_8bit,
56 	mbfl_no_encoding_wchar,
57 	mbfl_filt_conv_common_ctor,
58 	NULL,
59 	mbfl_filt_conv_8bit_wchar,
60 	mbfl_filt_conv_common_flush,
61 	NULL,
62 };
63 
64 const struct mbfl_convert_vtbl vtbl_wchar_8bit = {
65 	mbfl_no_encoding_wchar,
66 	mbfl_no_encoding_8bit,
67 	mbfl_filt_conv_common_ctor,
68 	NULL,
69 	mbfl_filt_conv_wchar_8bit,
70 	mbfl_filt_conv_common_flush,
71 	NULL,
72 };
73 
74 #define CK(statement) do { if ((statement) < 0) return (-1); } while (0)
75 
mbfl_filt_conv_8bit_wchar(int c,mbfl_convert_filter * filter)76 static int mbfl_filt_conv_8bit_wchar(int c, mbfl_convert_filter *filter)
77 {
78 	return (*filter->output_function)(c, filter->data);
79 }
80 
mbfl_filt_conv_wchar_8bit(int c,mbfl_convert_filter * filter)81 static int mbfl_filt_conv_wchar_8bit(int c, mbfl_convert_filter *filter)
82 {
83 	if (c >= 0 && c < 0x100) {
84 		CK((*filter->output_function)(c, filter->data));
85 	} else {
86 		CK(mbfl_filt_conv_illegal_output(c, filter));
87 	}
88 
89 	return 0;
90 }
91