1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
|
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
// Most of the code here was originally written by Serika Kurusugawa
// a.k.a. Junji Takagi, and is included in Qt with the author's permission,
// and the grateful thanks of the Qt team.
/*! \class QEucJpCodec
\reentrant
\internal
*/
/*
* Copyright (C) 1999 Serika Kurusugawa, All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "qeucjpcodec.h"
QT_BEGIN_NAMESPACE
#ifndef QT_NO_TEXTCODEC
static const uchar Ss2 = 0x8e; // Single Shift 2
static const uchar Ss3 = 0x8f; // Single Shift 3
#define IsKana(c) (((c) >= 0xa1) && ((c) <= 0xdf))
#define IsEucChar(c) (((c) >= 0xa1) && ((c) <= 0xfe))
#define QValidChar(u) ((u) ? QChar((ushort)(u)) : QChar(QChar::ReplacementCharacter))
/*!
Constructs a QEucJpCodec.
*/
QEucJpCodec::QEucJpCodec() : conv(QJpUnicodeConv::newConverter(QJpUnicodeConv::Default))
{
}
/*!
Destroys the codec.
*/
QEucJpCodec::~QEucJpCodec()
{
delete (QJpUnicodeConv*)conv;
conv = 0;
}
QByteArray QEucJpCodec::convertFromUnicode(const QChar *uc, int len, ConverterState *state) const
{
char replacement = '?';
if (state) {
if (state->flags & ConvertInvalidToNull)
replacement = 0;
}
int invalid = 0;
int rlen = 3*len + 1;
QByteArray rstr;
rstr.resize(rlen);
uchar* cursor = (uchar*)rstr.data();
for (int i = 0; i < len; i++) {
QChar ch = uc[i];
uint j;
if (ch.unicode() < 0x80) {
// ASCII
*cursor++ = ch.cell();
} else if ((j = conv->unicodeToJisx0201(ch.row(), ch.cell())) != 0) {
if (j < 0x80) {
// JIS X 0201 Latin ?
*cursor++ = j;
} else {
// JIS X 0201 Kana
*cursor++ = Ss2;
*cursor++ = j;
}
} else if ((j = conv->unicodeToJisx0208(ch.row(), ch.cell())) != 0) {
// JIS X 0208
*cursor++ = (j >> 8) | 0x80;
*cursor++ = (j & 0xff) | 0x80;
} else if ((j = conv->unicodeToJisx0212(ch.row(), ch.cell())) != 0) {
// JIS X 0212
*cursor++ = Ss3;
*cursor++ = (j >> 8) | 0x80;
*cursor++ = (j & 0xff) | 0x80;
} else {
// Error
*cursor++ = replacement;
++invalid;
}
}
rstr.resize(cursor - (uchar*)rstr.constData());
if (state) {
state->invalidChars += invalid;
}
return rstr;
}
QString QEucJpCodec::convertToUnicode(const char* chars, int len, ConverterState *state) const
{
uchar buf[2] = {0, 0};
int nbuf = 0;
QChar replacement = QChar::ReplacementCharacter;
if (state) {
if (state->flags & ConvertInvalidToNull)
replacement = QChar::Null;
nbuf = state->remainingChars;
buf[0] = state->state_data[0];
buf[1] = state->state_data[1];
}
int invalid = 0;
QString result;
for (int i=0; i<len; i++) {
uchar ch = chars[i];
switch (nbuf) {
case 0:
if (ch < 0x80) {
// ASCII
result += QLatin1Char(ch);
} else if (ch == Ss2 || ch == Ss3) {
// JIS X 0201 Kana or JIS X 0212
buf[0] = ch;
nbuf = 1;
} else if (IsEucChar(ch)) {
// JIS X 0208
buf[0] = ch;
nbuf = 1;
} else {
// Invalid
result += replacement;
++invalid;
}
break;
case 1:
if (buf[0] == Ss2) {
// JIS X 0201 Kana
if (IsKana(ch)) {
uint u = conv->jisx0201ToUnicode(ch);
result += QValidChar(u);
} else {
result += replacement;
++invalid;
}
nbuf = 0;
} else if (buf[0] == Ss3) {
// JIS X 0212-1990
if (IsEucChar(ch)) {
buf[1] = ch;
nbuf = 2;
} else {
// Error
result += replacement;
++invalid;
nbuf = 0;
}
} else {
// JIS X 0208-1990
if (IsEucChar(ch)) {
uint u = conv->jisx0208ToUnicode(buf[0] & 0x7f, ch & 0x7f);
result += QValidChar(u);
} else {
// Error
result += replacement;
++invalid;
}
nbuf = 0;
}
break;
case 2:
// JIS X 0212
if (IsEucChar(ch)) {
uint u = conv->jisx0212ToUnicode(buf[1] & 0x7f, ch & 0x7f);
result += QValidChar(u);
} else {
result += replacement;
++invalid;
}
nbuf = 0;
}
}
if (state) {
state->remainingChars = nbuf;
state->state_data[0] = buf[0];
state->state_data[1] = buf[1];
state->invalidChars += invalid;
}
return result;
}
int QEucJpCodec::_mibEnum()
{
return 18;
}
QByteArray QEucJpCodec::_name()
{
return "EUC-JP";
}
#endif // QT_NO_TEXTCODEC
QT_END_NAMESPACE
|
