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 #include "mbfilter.h"
31 #include "mbfilter_iso8859_5.h"
32 #include "unicode_table_iso8859_5.h"
33
34 static const char *mbfl_encoding_8859_5_aliases[] = {"ISO8859-5", "cyrillic", NULL};
35
36 const mbfl_encoding mbfl_encoding_8859_5 = {
37 mbfl_no_encoding_8859_5,
38 "ISO-8859-5",
39 "ISO-8859-5",
40 (const char *(*)[])&mbfl_encoding_8859_5_aliases,
41 NULL,
42 MBFL_ENCTYPE_SBCS,
43 &vtbl_8859_5_wchar,
44 &vtbl_wchar_8859_5
45 };
46
47 const struct mbfl_identify_vtbl vtbl_identify_8859_5 = {
48 mbfl_no_encoding_8859_5,
49 mbfl_filt_ident_common_ctor,
50 mbfl_filt_ident_true
51 };
52
53 const struct mbfl_convert_vtbl vtbl_8859_5_wchar = {
54 mbfl_no_encoding_8859_5,
55 mbfl_no_encoding_wchar,
56 mbfl_filt_conv_common_ctor,
57 NULL,
58 mbfl_filt_conv_8859_5_wchar,
59 mbfl_filt_conv_common_flush,
60 NULL,
61 };
62
63 const struct mbfl_convert_vtbl vtbl_wchar_8859_5 = {
64 mbfl_no_encoding_wchar,
65 mbfl_no_encoding_8859_5,
66 mbfl_filt_conv_common_ctor,
67 NULL,
68 mbfl_filt_conv_wchar_8859_5,
69 mbfl_filt_conv_common_flush,
70 NULL,
71 };
72
73
74 #define CK(statement) do { if ((statement) < 0) return (-1); } while (0)
75
76 /*
77 * ISO-8859-5 => wchar
78 */
mbfl_filt_conv_8859_5_wchar(int c,mbfl_convert_filter * filter)79 int mbfl_filt_conv_8859_5_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_5_ucs_table[c - 0xa0];
87 if (s <= 0) {
88 s = c;
89 s &= MBFL_WCSPLANE_MASK;
90 s |= MBFL_WCSPLANE_8859_5;
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-8859-5
105 */
mbfl_filt_conv_wchar_8859_5(int c,mbfl_convert_filter * filter)106 int mbfl_filt_conv_wchar_8859_5(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_5_ucs_table[n]) {
117 s = 0xa0 + n;
118 break;
119 }
120 n--;
121 }
122 if (s <= 0 && (c & ~MBFL_WCSPLANE_MASK) == MBFL_WCSPLANE_8859_5) {
123 s = c & MBFL_WCSPLANE_MASK;
124 }
125 }
126
127 if (s >= 0) {
128 CK((*filter->output_function)(s, filter->data));
129 } else {
130 CK(mbfl_filt_conv_illegal_output(c, filter));
131 }
132
133 return c;
134 }
135
