Annotation of embedaddon/php/ext/mbstring/libmbfl/filters/mbfilter_iso8859_6.c, revision 1.1.1.1
1.1 misho 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_6.h"
36: #include "unicode_table_iso8859_6.h"
37:
38: static const char *mbfl_encoding_8859_6_aliases[] = {"ISO_8859-6", "arabic", NULL};
39:
40: const mbfl_encoding mbfl_encoding_8859_6 = {
41: mbfl_no_encoding_8859_6,
42: "ISO-8859-6",
43: "ISO-8859-6",
44: (const char *(*)[])&mbfl_encoding_8859_6_aliases,
45: NULL,
46: MBFL_ENCTYPE_SBCS
47: };
48:
49: const struct mbfl_identify_vtbl vtbl_identify_8859_6 = {
50: mbfl_no_encoding_8859_6,
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_6_wchar = {
57: mbfl_no_encoding_8859_6,
58: mbfl_no_encoding_wchar,
59: mbfl_filt_conv_common_ctor,
60: mbfl_filt_conv_common_dtor,
61: mbfl_filt_conv_8859_6_wchar,
62: mbfl_filt_conv_common_flush
63: };
64:
65: const struct mbfl_convert_vtbl vtbl_wchar_8859_6 = {
66: mbfl_no_encoding_wchar,
67: mbfl_no_encoding_8859_6,
68: mbfl_filt_conv_common_ctor,
69: mbfl_filt_conv_common_dtor,
70: mbfl_filt_conv_wchar_8859_6,
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-8859-6 => wchar
79: */
80: int mbfl_filt_conv_8859_6_wchar(int c, mbfl_convert_filter *filter)
81: {
82: int s;
83:
84: if (c >= 0 && c < 0xa0) {
85: s = c;
86: } else if (c >= 0xa0 && c < 0x100) {
87: s = iso8859_6_ucs_table[c - 0xa0];
88: if (s <= 0) {
89: s = c;
90: s &= MBFL_WCSPLANE_MASK;
91: s |= MBFL_WCSPLANE_8859_6;
92: }
93: } else {
94: s = c;
95: s &= MBFL_WCSGROUP_MASK;
96: s |= MBFL_WCSGROUP_THROUGH;
97: }
98:
99: CK((*filter->output_function)(s, filter->data));
100:
101: return c;
102: }
103:
104: /*
105: * wchar => ISO-8859-6
106: */
107: int mbfl_filt_conv_wchar_8859_6(int c, mbfl_convert_filter *filter)
108: {
109: int s, n;
110:
111: if (c >= 0 && c < 0xa0) {
112: s = c;
113: } else {
114: s = -1;
115: n = 95;
116: while (n >= 0) {
117: if (c == iso8859_6_ucs_table[n]) {
118: s = 0xa0 + n;
119: break;
120: }
121: n--;
122: }
123: if (s <= 0 && (c & ~MBFL_WCSPLANE_MASK) == MBFL_WCSPLANE_8859_6) {
124: s = c & MBFL_WCSPLANE_MASK;
125: }
126: }
127:
128: if (s >= 0) {
129: CK((*filter->output_function)(s, filter->data));
130: } else {
131: if (filter->illegal_mode != MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE) {
132: CK(mbfl_filt_conv_illegal_output(c, filter));
133: }
134: }
135:
136: return c;
137: }
138:
139:
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