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Root/branches/xZenu/src/util/doxygen/qtools/qutfcodec.cpp

Source at commit 1406 created 12 years 10 months ago.
By meklort, Revert drivers.c so that kexts are only loaded when OSBundleRequired is set and that value is not safe mode. Added some comments about it too.
1/****************************************************************************␊
2** $Id: qt/src/tools/qutfcodec.cpp 2.3.2 edited 2001-01-26 $␊
3**␊
4** Implementation of QEucCodec class␊
5**␊
6** Created : 981015␊
7**␊
8** Copyright (C)1998-2000 Trolltech AS. All rights reserved.␊
9**␊
10** This file is part of the tools module of the Qt GUI Toolkit.␊
11**␊
12** This file may be distributed under the terms of the Q Public License␊
13** as defined by Trolltech AS of Norway and appearing in the file␊
14** LICENSE.QPL included in the packaging of this file.␊
15**␊
16** This file may be distributed and/or modified under the terms of the␊
17** GNU General Public License version 2 as published by the Free Software␊
18** Foundation and appearing in the file LICENSE.GPL included in the␊
19** packaging of this file.␊
20**␊
21** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition␊
22** licenses may use this file in accordance with the Qt Commercial License␊
23** Agreement provided with the Software.␊
24**␊
25** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE␊
26** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.␊
27**␊
28** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for␊
29** information about Qt Commercial License Agreements.␊
30** See http://www.trolltech.com/qpl/ for QPL licensing information.␊
31** See http://www.trolltech.com/gpl/ for GPL licensing information.␊
32**␊
33** Contact info@trolltech.com if any conditions of this licensing are␊
34** not clear to you.␊
35**␊
36**********************************************************************/␊
37␊
38#include "qutfcodec.h"␊
39␊
40#ifndef QT_NO_TEXTCODEC␊
41␊
42int QUtf8Codec::mibEnum() const␊
43{␊
44 return 106;␊
45}␊
46␊
47QCString QUtf8Codec::fromUnicode(const QString& uc, int& len_in_out) const␊
48{␊
49 int l = QMIN((int)uc.length(),len_in_out);␊
50 int rlen = l*3+1;␊
51 QCString rstr(rlen);␊
52 uchar* cursor = (uchar*)rstr.data();␊
53 for (int i=0; i<l; i++) {␊
54␉QChar ch = uc[i];␊
55␉if ( !ch.row() && ch.cell() < 0x80 ) {␊
56␉ *cursor++ = ch.cell();␊
57␉} else {␊
58␉ uchar b = (ch.row() << 2) | (ch.cell() >> 6);␊
59␉ if ( ch.row() < 0x08 ) {␊
60␉␉*cursor++ = 0xc0 | b;␊
61␉ } else {␊
62␉␉*cursor++ = 0xe0 | (ch.row() >> 4);␊
63␉␉*cursor++ = 0x80 | (b&0x3f);␊
64␉ }␊
65␉ *cursor++ = 0x80 | (ch.cell()&0x3f);␊
66␉}␊
67 }␊
68 len_in_out = cursor - (uchar*)rstr.data();␊
69 rstr.truncate(len_in_out);␊
70 return rstr;␊
71}␊
72␊
73const char* QUtf8Codec::name() const␊
74{␊
75 return "UTF-8";␊
76}␊
77␊
78int QUtf8Codec::heuristicContentMatch(const char* chars, int len) const␊
79{␊
80 int score = 0;␊
81 for (int i=0; i<len; i++) {␊
82␉uchar ch = chars[i];␊
83␉// No nulls allowed.␊
84␉if ( !ch )␊
85␉ return -1;␊
86␉if ( ch < 128 ) {␊
87␉ // Inconclusive␊
88␉ score++;␊
89␉} else if ( (ch&0xe0) == 0xc0 ) {␊
90␉ if ( i < len-1 ) {␊
91␉␉uchar c2 = chars[++i];␊
92␉␉if ( (c2&0xc0) != 0x80 )␊
93␉␉ return -1;␊
94␉␉score+=3;␊
95␉ }␊
96␉} else if ( (ch&0xf0) == 0xe0 ) {␊
97␉ if ( i < len-1 ) {␊
98␉␉uchar c2 = chars[++i];␊
99␉␉if ( (c2&0xc0) != 0x80 ) {␊
100␉␉ return -1;␊
101#if 0␊
102␉␉ if ( i < len-1 ) {␊
103␉␉␉uchar c3 = chars[++i];␊
104␉␉␉if ( (c3&0xc0) != 0x80 )␊
105␉␉␉ return -1;␊
106␉␉␉score+=3;␊
107␉␉ }␊
108#endif␊
109␉␉}␊
110␉␉score+=2;␊
111␉ }␊
112␉}␊
113 }␊
114 return score;␊
115}␊
116␊
117␊
118␊
119␊
120class QUtf8Decoder : public QTextDecoder {␊
121 ushort uc;␊
122 int need;␊
123public:␊
124 QUtf8Decoder() : need(0)␊
125 {␊
126 }␊
127␊
128 QString toUnicode(const char* chars, int len)␊
129 {␊
130␉QString result;␊
131␉for (int i=0; i<len; i++) {␊
132␉ uchar ch = chars[i];␊
133␉ if (need) {␊
134␉␉if ( (ch&0xc0) == 0x80 ) {␊
135␉␉ uc = (uc << 6) | (ch & 0x3f);␊
136␉␉ need--;␊
137␉␉ if ( !need ) {␊
138␉␉␉result += QChar(uc);␊
139␉␉ }␊
140␉␉} else {␊
141␉␉ // error␊
142␉␉ result += QChar::replacement;␊
143␉␉ need = 0;␊
144␉␉}␊
145␉ } else {␊
146␉␉if ( ch < 128 ) {␊
147␉␉ result += QChar(ch);␊
148␉␉} else if ( (ch&0xe0) == 0xc0 ) {␊
149␉␉ uc = ch &0x1f;␊
150␉␉ need = 1;␊
151␉␉} else if ( (ch&0xf0) == 0xe0 ) {␊
152␉␉ uc = ch &0x0f;␊
153␉␉ need = 2;␊
154␉␉}␊
155␉ }␊
156␉}␊
157␉return result;␊
158 }␊
159};␊
160␊
161QTextDecoder* QUtf8Codec::makeDecoder() const␊
162{␊
163 return new QUtf8Decoder;␊
164}␊
165␊
166␊
167␊
168␊
169␊
170␊
171int QUtf16Codec::mibEnum() const␊
172{␊
173 return 1000;␊
174}␊
175␊
176const char* QUtf16Codec::name() const␊
177{␊
178 return "ISO-10646-UCS-2";␊
179}␊
180␊
181int QUtf16Codec::heuristicContentMatch(const char* chars, int len) const␊
182{␊
183 uchar* uchars = (uchar*)chars;␊
184 if ( len >= 2 && ((uchars[0] == 0xff && uchars[1] == 0xfe) ||␊
185␉␉ (uchars[1] == 0xff && uchars[0] == 0xfe)) )␊
186␉return len;␊
187 else␊
188␉return 0;␊
189}␊
190␊
191␊
192␊
193␊
194class QUtf16Encoder : public QTextEncoder {␊
195 bool headerdone;␊
196public:␊
197 QUtf16Encoder() : headerdone(FALSE)␊
198 {␊
199 }␊
200␊
201 QCString fromUnicode(const QString& uc, int& len_in_out)␊
202 {␊
203␉if ( headerdone ) {␊
204␉ len_in_out = uc.length()*sizeof(QChar);␊
205␉ QCString d(len_in_out);␊
206␉ memcpy(d.data(),uc.unicode(),len_in_out);␊
207␉ return d;␊
208␉} else {␊
209␉ headerdone = TRUE;␊
210␉ len_in_out = (1+uc.length())*sizeof(QChar);␊
211␉ QCString d(len_in_out);␊
212␉ memcpy(d.data(),&QChar::byteOrderMark,sizeof(QChar));␊
213␉ memcpy(d.data()+sizeof(QChar),uc.unicode(),uc.length()*sizeof(QChar));␊
214␉ return d;␊
215␉}␊
216 }␊
217};␊
218␊
219class QUtf16Decoder : public QTextDecoder {␊
220 uchar buf;␊
221 bool half;␊
222 bool swap;␊
223 bool headerdone;␊
224␊
225public:␊
226 QUtf16Decoder() : half(FALSE), swap(FALSE), headerdone(FALSE)␊
227 {␊
228 }␊
229␊
230 QString toUnicode(const char* chars, int len)␊
231 {␊
232␉QString r;␊
233␊
234␉while ( len-- ) {␊
235␉ if ( half ) {␊
236␉␉QChar ch;␊
237␉␉if ( swap ) {␊
238␉␉ ch.row() = *chars++;␊
239␉␉ ch.cell() = buf;␊
240␉␉} else {␊
241␉␉ ch.row() = buf;␊
242␉␉ ch.cell() = *chars++;␊
243␉␉}␊
244␉␉if ( !headerdone ) {␊
245␉␉ if ( ch == QChar::byteOrderSwapped ) {␊
246␉␉␉swap = !swap;␊
247␉␉ } else if ( ch == QChar::byteOrderMark ) {␊
248␉␉␉// Ignore ZWNBSP␊
249␉␉ } else {␊
250␉␉␉r += ch;␊
251␉␉ }␊
252␉␉ headerdone = TRUE;␊
253␉␉} else␊
254␉␉ r += ch;␊
255␉␉half = FALSE;␊
256␉ } else {␊
257␉␉buf = *chars++;␊
258␉␉half = TRUE;␊
259␉ }␊
260␉}␊
261␊
262␉return r;␊
263 }␊
264};␊
265␊
266QTextDecoder* QUtf16Codec::makeDecoder() const␊
267{␊
268 return new QUtf16Decoder;␊
269}␊
270␊
271QTextEncoder* QUtf16Codec::makeEncoder() const␊
272{␊
273 return new QUtf16Encoder;␊
274}␊
275␊
276#endif // QT_NO_TEXTCODEC␊
277

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