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 4 dec 2002.
27  *
28  */
29 
30 #ifdef HAVE_CONFIG_H
31 #include "config.h"
32 #endif
33 
34 #include "mbfilter.h"
35 #include "mbfilter_iso8859_14.h"
36 #include "unicode_table_iso8859_14.h"
37 
38 static const char *mbfl_encoding_8859_14_aliases[] = {"ISO_8859-14", "latin8", NULL};
39 
40 const mbfl_encoding mbfl_encoding_8859_14 = {
41 	mbfl_no_encoding_8859_14,
42 	"ISO-8859-14",
43 	"ISO-8859-14",
44 	(const char *(*)[])&mbfl_encoding_8859_14_aliases,
45 	NULL,
46 	MBFL_ENCTYPE_SBCS
47 };
48 
49 const struct mbfl_identify_vtbl vtbl_identify_8859_14 = {
50 	mbfl_no_encoding_8859_14,
51 	mbfl_filt_ident_common_ctor,
52 	mbfl_filt_ident_common_dtor,
53 	mbfl_filt_ident_true
54 };
55 
56 const struct mbfl_convert_vtbl vtbl_8859_14_wchar = {
57 	mbfl_no_encoding_8859_14,
58 	mbfl_no_encoding_wchar,
59 	mbfl_filt_conv_common_ctor,
60 	mbfl_filt_conv_common_dtor,
61 	mbfl_filt_conv_8859_14_wchar,
62 	mbfl_filt_conv_common_flush
63 };
64 
65 const struct mbfl_convert_vtbl vtbl_wchar_8859_14 = {
66 	mbfl_no_encoding_wchar,
67 	mbfl_no_encoding_8859_14,
68 	mbfl_filt_conv_common_ctor,
69 	mbfl_filt_conv_common_dtor,
70 	mbfl_filt_conv_wchar_8859_14,
71 	mbfl_filt_conv_common_flush
72 };
73 
74 #define CK(statement)	do { if ((statement) < 0) return (-1); } while (0)
75 
76 /*
77  * ISO-8859-14 => wchar
78  */
mbfl_filt_conv_8859_14_wchar(int c,mbfl_convert_filter * filter)79 int mbfl_filt_conv_8859_14_wchar(int c, mbfl_convert_filter *filter)
80 {
81 	int s;
82 
83 	if (c >= 0 && c < 0xa0) {
84 		s = c;
85 	} else if (c >= 0xa0 && c < 0x100) {
86 		s = iso8859_14_ucs_table[c - 0xa0];
87 		if (s <= 0) {
88 			s = c;
89 			s &= MBFL_WCSPLANE_MASK;
90 			s |= MBFL_WCSPLANE_8859_14;
91 		}
92 	} else {
93 		s = c;
94 		s &= MBFL_WCSGROUP_MASK;
95 		s |= MBFL_WCSGROUP_THROUGH;
96 	}
97 
98 	CK((*filter->output_function)(s, filter->data));
99 
100 	return c;
101 }
102 
103 /*
104  * wchar => ISO-8859-14
105  */
mbfl_filt_conv_wchar_8859_14(int c,mbfl_convert_filter * filter)106 int mbfl_filt_conv_wchar_8859_14(int c, mbfl_convert_filter *filter)
107 {
108 	int s, n;
109 
110 	if (c >= 0 && c < 0xa0) {
111 		s = c;
112 	} else {
113 		s = -1;
114 		n = 95;
115 		while (n >= 0) {
116 			if (c == iso8859_14_ucs_table[n]) {
117 				s = 0xa0 + n;
118 				break;
119 			}
120 			n--;
121 		}
122 		if (s <= 0 && (c & ~MBFL_WCSPLANE_MASK) == MBFL_WCSPLANE_8859_14) {
123 			s = c & MBFL_WCSPLANE_MASK;
124 		}
125 	}
126 
127 	if (s >= 0) {
128 		CK((*filter->output_function)(s, filter->data));
129 	} else {
130 		if (filter->illegal_mode != MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE) {
131 			CK(mbfl_filt_conv_illegal_output(c, filter));
132 		}
133 	}
134 
135 	return c;
136 }
137 
138 
139