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_3.h"
36 : #include "unicode_table_iso8859_3.h"
37 :
38 : static const char *mbfl_encoding_8859_3_aliases[] = {"ISO_8859-3", "latin3", NULL};
39 :
40 : const mbfl_encoding mbfl_encoding_8859_3 = {
41 : mbfl_no_encoding_8859_3,
42 : "ISO-8859-3",
43 : "ISO-8859-3",
44 : (const char *(*)[])&mbfl_encoding_8859_3_aliases,
45 : NULL,
46 : MBFL_ENCTYPE_SBCS
47 : };
48 :
49 : const struct mbfl_identify_vtbl vtbl_identify_8859_3 = {
50 : mbfl_no_encoding_8859_3,
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_3_wchar = {
57 : mbfl_no_encoding_8859_3,
58 : mbfl_no_encoding_wchar,
59 : mbfl_filt_conv_common_ctor,
60 : mbfl_filt_conv_common_dtor,
61 : mbfl_filt_conv_8859_3_wchar,
62 : mbfl_filt_conv_common_flush
63 : };
64 :
65 : const struct mbfl_convert_vtbl vtbl_wchar_8859_3 = {
66 : mbfl_no_encoding_wchar,
67 : mbfl_no_encoding_8859_3,
68 : mbfl_filt_conv_common_ctor,
69 : mbfl_filt_conv_common_dtor,
70 : mbfl_filt_conv_wchar_8859_3,
71 : mbfl_filt_conv_common_flush
72 : };
73 :
74 :
75 : #define CK(statement) do { if ((statement) < 0) return (-1); } while (0)
76 :
77 : /*
78 : * ISO-8859-3 => wchar
79 : */
80 : int mbfl_filt_conv_8859_3_wchar(int c, mbfl_convert_filter *filter)
81 0 : {
82 : int s;
83 :
84 0 : if (c >= 0 && c < 0xa0) {
85 0 : s = c;
86 0 : } else if (c >= 0xa0 && c < 0x100) {
87 0 : s = iso8859_3_ucs_table[c - 0xa0];
88 0 : if (s <= 0) {
89 0 : s = c;
90 0 : s &= MBFL_WCSPLANE_MASK;
91 0 : s |= MBFL_WCSPLANE_8859_3;
92 : }
93 : } else {
94 0 : s = c;
95 0 : s &= MBFL_WCSGROUP_MASK;
96 0 : s |= MBFL_WCSGROUP_THROUGH;
97 : }
98 :
99 0 : CK((*filter->output_function)(s, filter->data));
100 :
101 0 : return c;
102 : }
103 :
104 : /*
105 : * wchar => ISO-8859-3
106 : */
107 : int mbfl_filt_conv_wchar_8859_3(int c, mbfl_convert_filter *filter)
108 0 : {
109 : int s, n;
110 :
111 0 : if (c >= 0 && c < 0xa0) {
112 0 : s = c;
113 : } else {
114 0 : s = -1;
115 0 : n = 95;
116 0 : while (n >= 0) {
117 0 : if (c == iso8859_3_ucs_table[n]) {
118 0 : s = 0xa0 + n;
119 0 : break;
120 : }
121 0 : n--;
122 : }
123 0 : if (s <= 0 && (c & ~MBFL_WCSPLANE_MASK) == MBFL_WCSPLANE_8859_3) {
124 0 : s = c & MBFL_WCSPLANE_MASK;
125 : }
126 : }
127 :
128 0 : if (s >= 0) {
129 0 : CK((*filter->output_function)(s, filter->data));
130 : } else {
131 0 : if (filter->illegal_mode != MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE) {
132 0 : CK(mbfl_filt_conv_illegal_output(c, filter));
133 : }
134 : }
135 :
136 0 : return c;
137 : }
138 :
139 :
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