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_16.h"
36 #include "unicode_table_iso8859_16.h"
37
38 static const char *mbfl_encoding_8859_16_aliases[] = {"ISO_8859-16", NULL};
39
40 const mbfl_encoding mbfl_encoding_8859_16 = {
41 mbfl_no_encoding_8859_16,
42 "ISO-8859-16",
43 "ISO-8859-16",
44 (const char *(*)[])&mbfl_encoding_8859_16_aliases,
45 NULL,
46 MBFL_ENCTYPE_SBCS
47 };
48
49 const struct mbfl_identify_vtbl vtbl_identify_8859_16 = {
50 mbfl_no_encoding_8859_16,
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_16_wchar = {
57 mbfl_no_encoding_8859_16,
58 mbfl_no_encoding_wchar,
59 mbfl_filt_conv_common_ctor,
60 mbfl_filt_conv_common_dtor,
61 mbfl_filt_conv_8859_16_wchar,
62 mbfl_filt_conv_common_flush
63 };
64
65 const struct mbfl_convert_vtbl vtbl_wchar_8859_16 = {
66 mbfl_no_encoding_wchar,
67 mbfl_no_encoding_8859_16,
68 mbfl_filt_conv_common_ctor,
69 mbfl_filt_conv_common_dtor,
70 mbfl_filt_conv_wchar_8859_16,
71 mbfl_filt_conv_common_flush
72 };
73
74 #define CK(statement) do { if ((statement) < 0) return (-1); } while (0)
75
76 /*
77 * ISO-8859-16 => wchar
78 */
mbfl_filt_conv_8859_16_wchar(int c,mbfl_convert_filter * filter)79 int mbfl_filt_conv_8859_16_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_16_ucs_table[c - 0xa0];
87 if (s <= 0) {
88 s = c;
89 s &= MBFL_WCSPLANE_MASK;
90 s |= MBFL_WCSPLANE_8859_16;
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-8859-16
105 */
mbfl_filt_conv_wchar_8859_16(int c,mbfl_convert_filter * filter)106 int mbfl_filt_conv_wchar_8859_16(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_16_ucs_table[n]) {
117 s = 0xa0 + n;
118 break;
119 }
120 n--;
121 }
122 if (s <= 0 && (c & ~MBFL_WCSPLANE_MASK) == MBFL_WCSPLANE_8859_16) {
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