qutfcodec.cpp

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1/****************************************************************************-
2**-
3** Copyright (C) 2016 The Qt Company Ltd.-
4** Copyright (C) 2016 Intel Corporation.-
5** Contact: https://www.qt.io/licensing/-
6**-
7** This file is part of the QtCore module of the Qt Toolkit.-
8**-
9** $QT_BEGIN_LICENSE:LGPL$-
10** Commercial License Usage-
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18** GNU Lesser General Public License Usage-
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22** packaging of this file. Please review the following information to-
23** ensure the GNU Lesser General Public License version 3 requirements-
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27** Alternatively, this file may be used under the terms of the GNU-
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36**-
37** $QT_END_LICENSE$-
38**-
39****************************************************************************/-
40-
41#include "qutfcodec_p.h"-
42#include "qlist.h"-
43#include "qendian.h"-
44#include "qchar.h"-
45-
46#include "private/qsimd_p.h"-
47#include "private/qstringiterator_p.h"-
48-
49QT_BEGIN_NAMESPACE-
50-
51enum { Endian = 0, Data = 1 };-
52-
53static const uchar utf8bom[] = { 0xef, 0xbb, 0xbf };-
54-
55#if defined(__SSE2__) && defined(QT_COMPILER_SUPPORTS_SSE2)-
56static inline bool simdEncodeAscii(uchar *&dst, const ushort *&nextAscii, const ushort *&src, const ushort *end)-
57{-
58 // do sixteen characters at a time-
59 for ( ; end - src >= 16; src += 16, dst += 16) {-
60 __m128i data1 = _mm_loadu_si128((const __m128i*)src);-
61 __m128i data2 = _mm_loadu_si128(1+(const __m128i*)src);-
62-
63-
64 // check if everything is ASCII-
65 // the highest ASCII value is U+007F-
66 // Do the packing directly:-
67 // The PACKUSWB instruction has packs a signed 16-bit integer to an unsigned 8-bit-
68 // with saturation. That is, anything from 0x0100 to 0x7fff is saturated to 0xff,-
69 // while all negatives (0x8000 to 0xffff) get saturated to 0x00. To detect non-ASCII,-
70 // we simply do a signed greater-than comparison to 0x00. That means we detect NULs as-
71 // "non-ASCII", but it's an acceptable compromise.-
72 __m128i packed = _mm_packus_epi16(data1, data2);-
73 __m128i nonAscii = _mm_cmpgt_epi8(packed, _mm_setzero_si128());-
74-
75 // store, even if there are non-ASCII characters here-
76 _mm_storeu_si128((__m128i*)dst, packed);-
77-
78 // n will contain 1 bit set per character in [data1, data2] that is non-ASCII (or NUL)-
79 ushort n = ~_mm_movemask_epi8(nonAscii);-
80 if (n) {-
81 // find the next probable ASCII character-
82 // we don't want to load 32 bytes again in this loop if we know there are non-ASCII-
83 // characters still coming-
84 nextAscii = src + _bit_scan_reverse(n) + 1;-
85-
86 n = _bit_scan_forward(n);-
87 dst += n;-
88 src += n;-
89 return false;-
90 }-
91 }-
92 return src == end;-
93}-
94-
95static inline bool simdDecodeAscii(ushort *&dst, const uchar *&nextAscii, const uchar *&src, const uchar *end)-
96{-
97 // do sixteen characters at a time-
98 for ( ; end - src >= 16; src += 16, dst += 16) {-
99 __m128i data = _mm_loadu_si128((const __m128i*)src);-
100-
101#ifdef __AVX2__-
102 const int BitSpacing = 2;-
103 // load and zero extend to an YMM register-
104 const __m256i extended = _mm256_cvtepu8_epi16(data);-
105-
106 uint n = _mm256_movemask_epi8(extended);-
107 if (!n) {-
108 // store-
109 _mm256_storeu_si256((__m256i*)dst, extended);-
110 continue;-
111 }-
112#else-
113 const int BitSpacing = 1;-
114-
115 // check if everything is ASCII-
116 // movemask extracts the high bit of every byte, so n is non-zero if something isn't ASCII-
117 uint n = _mm_movemask_epi8(data);-
118 if (!n) {-
119 // unpack-
120 _mm_storeu_si128((__m128i*)dst, _mm_unpacklo_epi8(data, _mm_setzero_si128()));-
121 _mm_storeu_si128(1+(__m128i*)dst, _mm_unpackhi_epi8(data, _mm_setzero_si128()));-
122 continue;-
123 }-
124#endif-
125-
126 // copy the front part that is still ASCII-
127 while (!(n & 1)) {-
128 *dst++ = *src++;-
129 n >>= BitSpacing;-
130 }-
131-
132 // find the next probable ASCII character-
133 // we don't want to load 16 bytes again in this loop if we know there are non-ASCII-
134 // characters still coming-
135 n = _bit_scan_reverse(n);-
136 nextAscii = src + (n / BitSpacing) + 1;-
137 return false;-
138-
139 }-
140 return src == end;-
141}-
142#else-
143static inline bool simdEncodeAscii(uchar *, const ushort *, const ushort *, const ushort *)-
144{-
145 return false;-
146}-
147-
148static inline bool simdDecodeAscii(ushort *, const uchar *, const uchar *, const uchar *)-
149{-
150 return false;-
151}-
152#endif-
153-
154QByteArray QUtf8::convertFromUnicode(const QChar *uc, int len)-
155{-
156 // create a QByteArray with the worst case scenario size-
157 QByteArray result(len * 3, Qt::Uninitialized);-
158 uchar *dst = reinterpret_cast<uchar *>(const_cast<char *>(result.constData()));-
159 const ushort *src = reinterpret_cast<const ushort *>(uc);-
160 const ushort *const end = src + len;-
161-
162 while (src != end) {-
163 const ushort *nextAscii = end;-
164 if (simdEncodeAscii(dst, nextAscii, src, end))-
165 break;-
166-
167 do {-
168 ushort uc = *src++;-
169 int res = QUtf8Functions::toUtf8<QUtf8BaseTraits>(uc, dst, src, end);-
170 if (res < 0) {-
171 // encoding error - append '?'-
172 *dst++ = '?';-
173 }-
174 } while (src < nextAscii);-
175 }-
176-
177 result.truncate(dst - reinterpret_cast<uchar *>(const_cast<char *>(result.constData())));-
178 return result;-
179}-
180-
181QByteArray QUtf8::convertFromUnicode(const QChar *uc, int len, QTextCodec::ConverterState *state)-
182{-
183 uchar replacement = '?';-
184 int rlen = 3*len;-
185 int surrogate_high = -1;-
186 if (state) {-
187 if (state->flags & QTextCodec::ConvertInvalidToNull)-
188 replacement = 0;-
189 if (!(state->flags & QTextCodec::IgnoreHeader))-
190 rlen += 3;-
191 if (state->remainingChars)-
192 surrogate_high = state->state_data[0];-
193 }-
194-
195-
196 QByteArray rstr(rlen, Qt::Uninitialized);-
197 uchar *cursor = reinterpret_cast<uchar *>(const_cast<char *>(rstr.constData()));-
198 const ushort *src = reinterpret_cast<const ushort *>(uc);-
199 const ushort *const end = src + len;-
200-
201 int invalid = 0;-
202 if (state && !(state->flags & QTextCodec::IgnoreHeader)) {-
203 // append UTF-8 BOM-
204 *cursor++ = utf8bom[0];-
205 *cursor++ = utf8bom[1];-
206 *cursor++ = utf8bom[2];-
207 }-
208-
209 const ushort *nextAscii = src;-
210 while (src != end) {-
211 int res;-
212 ushort uc;-
213 if (surrogate_high != -1) {-
214 uc = surrogate_high;-
215 surrogate_high = -1;-
216 res = QUtf8Functions::toUtf8<QUtf8BaseTraits>(uc, cursor, src, end);-
217 } else {-
218 if (src >= nextAscii && simdEncodeAscii(cursor, nextAscii, src, end))-
219 break;-
220-
221 uc = *src++;-
222 res = QUtf8Functions::toUtf8<QUtf8BaseTraits>(uc, cursor, src, end);-
223 }-
224 if (Q_LIKELY(res >= 0))-
225 continue;-
226-
227 if (res == QUtf8BaseTraits::Error) {-
228 // encoding error-
229 ++invalid;-
230 *cursor++ = replacement;-
231 } else if (res == QUtf8BaseTraits::EndOfString) {-
232 surrogate_high = uc;-
233 break;-
234 }-
235 }-
236-
237 rstr.resize(cursor - (const uchar*)rstr.constData());-
238 if (state) {-
239 state->invalidChars += invalid;-
240 state->flags |= QTextCodec::IgnoreHeader;-
241 state->remainingChars = 0;-
242 if (surrogate_high >= 0) {-
243 state->remainingChars = 1;-
244 state->state_data[0] = surrogate_high;-
245 }-
246 }-
247 return rstr;-
248}-
249-
250QString QUtf8::convertToUnicode(const char *chars, int len)-
251{-
252 // UTF-8 to UTF-16 always needs the exact same number of words or less:-
253 // UTF-8 UTF-16-
254 // 1 byte 1 word-
255 // 2 bytes 1 word-
256 // 3 bytes 1 word-
257 // 4 bytes 2 words (one surrogate pair)-
258 // That is, we'll use the full buffer if the input is US-ASCII (1-byte UTF-8),-
259 // half the buffer for U+0080-U+07FF text (e.g., Greek, Cyrillic, Arabic) or-
260 // non-BMP text, and one third of the buffer for U+0800-U+FFFF text (e.g, CJK).-
261 //-
262 // The table holds for invalid sequences too: we'll insert one replacement char-
263 // per invalid byte.-
264 QString result(len, Qt::Uninitialized);-
265 ushortQChar *dstdata = reinterpret_cast<ushort *>(const_cast<QChar*>(result.constData()));()); // we know we're not shared-
266 const QChar *end = convertToUnicode(data, chars, len);-
267 result.truncate(end - data);-
268 return result;
executed 3930821 times by 532 tests: return result;
Executed by:
  • tst_Collections
  • tst_Compiler
  • tst_Gestures
  • tst_Lancelot
  • tst_LargeFile
  • tst_ModelTest
  • tst_NetworkSelfTest
  • tst_PlatformSocketEngine
  • tst_QAbstractButton
  • tst_QAbstractFileEngine
  • tst_QAbstractItemModel
  • tst_QAbstractItemView
  • tst_QAbstractNetworkCache
  • tst_QAbstractPrintDialog
  • tst_QAbstractProxyModel
  • tst_QAbstractScrollArea
  • tst_QAbstractSlider
  • tst_QAbstractSpinBox
  • tst_QAbstractTextDocumentLayout
  • tst_QAccessibility
  • tst_QAction
  • tst_QActionGroup
  • tst_QAlgorithms
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  • tst_QAsn1Element
  • ...
3930821
269}-
270-
271/*!-
272 \since 5.7-
273 \overload-
274-
275 Converts the UTF-8 sequence of \a len octets beginning at \a chars to-
276 a sequence of QChar starting at \a buffer. The buffer is expected to be-
277 large enough to hold the result. An upper bound for the size of the-
278 buffer is \a len QChars.-
279-
280 If, during decoding, an error occurs, a QChar::ReplacementCharacter is-
281 written.-
282-
283 Returns a pointer to one past the last QChar written.-
284-
285 This function never throws.-
286*/-
287-
288QChar *QUtf8::convertToUnicode(QChar *buffer, const char *chars, int len) Q_DECL_NOTHROW-
289{-
290 ushort *dst = reinterpret_cast<ushort *>(buffer);-
291 const uchar *src = reinterpret_cast<const uchar *>(chars);-
292 const uchar *end = src + len;-
293-
294 // attempt to do a full decoding in SIMD-
295 const uchar *nextAscii = end;-
296 if (!simdDecodeAscii(dst, nextAscii, src, end)) {
!simdDecodeAsc...cii, src, end)Description
TRUEevaluated 4015432 times by 546 tests
Evaluated by:
  • tst_Collections
  • tst_Compiler
  • tst_Gestures
  • tst_Lancelot
  • tst_LargeFile
  • tst_ModelTest
  • tst_NetworkSelfTest
  • tst_PlatformSocketEngine
  • tst_QAbstractButton
  • tst_QAbstractFileEngine
  • tst_QAbstractItemModel
  • tst_QAbstractItemView
  • tst_QAbstractNetworkCache
  • tst_QAbstractPrintDialog
  • tst_QAbstractProxyModel
  • tst_QAbstractScrollArea
  • tst_QAbstractSlider
  • tst_QAbstractSpinBox
  • tst_QAbstractTextDocumentLayout
  • tst_QAccessibility
  • tst_QAction
  • tst_QActionGroup
  • tst_QAlgorithms
  • tst_QAnimationGroup
  • tst_QApplication
  • ...
FALSEevaluated 598854 times by 300 tests
Evaluated by:
  • tst_Collections
  • tst_LargeFile
  • tst_NetworkSelfTest
  • tst_PlatformSocketEngine
  • tst_QAbstractButton
  • tst_QAbstractItemModel
  • tst_QAbstractItemView
  • tst_QAbstractNetworkCache
  • tst_QAbstractSpinBox
  • tst_QAbstractTextDocumentLayout
  • tst_QAccessibility
  • tst_QAction
  • tst_QAlgorithms
  • tst_QApplication
  • tst_QAuthenticator
  • tst_QBitArray
  • tst_QBoxLayout
  • tst_QBuffer
  • tst_QButtonGroup
  • tst_QByteArray
  • tst_QCalendarWidget
  • tst_QCheckBox
  • tst_QColor
  • tst_QColorDialog
  • tst_QColumnView
  • ...
598854-4015432
297 // at least one non-ASCII entry-
298 // check if we failed to decode the UTF-8 BOM; if so, skip it-
299 if (Q_UNLIKELY(src == reinterpret_cast<const uchar *>(chars))
__builtin_expe...hars)), false)Description
TRUEevaluated 3479490 times by 518 tests
Evaluated by:
  • tst_Collections
  • tst_Compiler
  • tst_Gestures
  • tst_Lancelot
  • tst_LargeFile
  • tst_ModelTest
  • tst_NetworkSelfTest
  • tst_PlatformSocketEngine
  • tst_QAbstractButton
  • tst_QAbstractFileEngine
  • tst_QAbstractItemModel
  • tst_QAbstractItemView
  • tst_QAbstractNetworkCache
  • tst_QAbstractPrintDialog
  • tst_QAbstractProxyModel
  • tst_QAbstractScrollArea
  • tst_QAbstractSlider
  • tst_QAbstractSpinBox
  • tst_QAbstractTextDocumentLayout
  • tst_QAccessibility
  • tst_QAction
  • tst_QActionGroup
  • tst_QAlgorithms
  • tst_QApplication
  • tst_QArrayData
  • ...
FALSEevaluated 535942 times by 497 tests
Evaluated by:
  • tst_Collections
  • tst_Compiler
  • tst_Gestures
  • tst_Lancelot
  • tst_LargeFile
  • tst_ModelTest
  • tst_NetworkSelfTest
  • tst_PlatformSocketEngine
  • tst_QAbstractButton
  • tst_QAbstractFileEngine
  • tst_QAbstractItemView
  • tst_QAbstractNetworkCache
  • tst_QAbstractPrintDialog
  • tst_QAbstractScrollArea
  • tst_QAbstractSlider
  • tst_QAbstractSpinBox
  • tst_QAbstractTextDocumentLayout
  • tst_QAccessibility
  • tst_QAction
  • tst_QActionGroup
  • tst_QAnimationGroup
  • tst_QApplication
  • tst_QArrayData
  • tst_QArrayData_StrictIterators
  • tst_QAuthenticator
  • ...
535942-3479490
300 && end - src >= 3
end - src >= 3Description
TRUEevaluated 1873886 times by 389 tests
Evaluated by:
  • tst_Collections
  • tst_Compiler
  • tst_Gestures
  • tst_Lancelot
  • tst_LargeFile
  • tst_ModelTest
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  • tst_PlatformSocketEngine
  • tst_QAbstractButton
  • tst_QAbstractFileEngine
  • tst_QAbstractItemModel
  • tst_QAbstractItemView
  • tst_QAbstractNetworkCache
  • tst_QAbstractPrintDialog
  • tst_QAbstractScrollArea
  • tst_QAbstractSlider
  • tst_QAbstractSpinBox
  • tst_QAbstractTextDocumentLayout
  • tst_QAccessibility
  • tst_QAction
  • tst_QActionGroup
  • tst_QAlgorithms
  • tst_QApplication
  • tst_QAsn1Element
  • tst_QAuthenticator
  • ...
FALSEevaluated 1605604 times by 445 tests
Evaluated by:
  • tst_Collections
  • tst_Compiler
  • tst_Gestures
  • tst_Lancelot
  • tst_ModelTest
  • tst_NetworkSelfTest
  • tst_PlatformSocketEngine
  • tst_QAbstractButton
  • tst_QAbstractItemModel
  • tst_QAbstractItemView
  • tst_QAbstractNetworkCache
  • tst_QAbstractPrintDialog
  • tst_QAbstractProxyModel
  • tst_QAbstractScrollArea
  • tst_QAbstractSlider
  • tst_QAbstractSpinBox
  • tst_QAbstractTextDocumentLayout
  • tst_QAccessibility
  • tst_QAction
  • tst_QActionGroup
  • tst_QAlgorithms
  • tst_QApplication
  • tst_QArrayData
  • tst_QArrayData_StrictIterators
  • tst_QBackingStore
  • ...
1605604-1873886
301 && Q_UNLIKELY(src[0] == utf8bom[0] && src[1] == utf8bom[1] && src[2] == utf8bom[2])) {
__builtin_expe...om[2]), false)Description
TRUEevaluated 5 times by 2 tests
Evaluated by:
  • tst_QString
  • tst_QUrlInternal
FALSEevaluated 1873881 times by 389 tests
Evaluated by:
  • tst_Collections
  • tst_Compiler
  • tst_Gestures
  • tst_Lancelot
  • tst_LargeFile
  • tst_ModelTest
  • tst_NetworkSelfTest
  • tst_PlatformSocketEngine
  • tst_QAbstractButton
  • tst_QAbstractFileEngine
  • tst_QAbstractItemModel
  • tst_QAbstractItemView
  • tst_QAbstractNetworkCache
  • tst_QAbstractPrintDialog
  • tst_QAbstractScrollArea
  • tst_QAbstractSlider
  • tst_QAbstractSpinBox
  • tst_QAbstractTextDocumentLayout
  • tst_QAccessibility
  • tst_QAction
  • tst_QActionGroup
  • tst_QAlgorithms
  • tst_QApplication
  • tst_QAsn1Element
  • tst_QAuthenticator
  • ...
5-1873881
302 src += 3;-
303 }
executed 5 times by 2 tests: end of block
Executed by:
  • tst_QString
  • tst_QUrlInternal
5
304-
305 while (src < end) {
src < endDescription
TRUEevaluated 4064914 times by 546 tests
Evaluated by:
  • tst_Collections
  • tst_Compiler
  • tst_Gestures
  • tst_Lancelot
  • tst_LargeFile
  • tst_ModelTest
  • tst_NetworkSelfTest
  • tst_PlatformSocketEngine
  • tst_QAbstractButton
  • tst_QAbstractFileEngine
  • tst_QAbstractItemModel
  • tst_QAbstractItemView
  • tst_QAbstractNetworkCache
  • tst_QAbstractPrintDialog
  • tst_QAbstractProxyModel
  • tst_QAbstractScrollArea
  • tst_QAbstractSlider
  • tst_QAbstractSpinBox
  • tst_QAbstractTextDocumentLayout
  • tst_QAccessibility
  • tst_QAction
  • tst_QActionGroup
  • tst_QAlgorithms
  • tst_QAnimationGroup
  • tst_QApplication
  • ...
FALSEevaluated 4015424 times by 546 tests
Evaluated by:
  • tst_Collections
  • tst_Compiler
  • tst_Gestures
  • tst_Lancelot
  • tst_LargeFile
  • tst_ModelTest
  • tst_NetworkSelfTest
  • tst_PlatformSocketEngine
  • tst_QAbstractButton
  • tst_QAbstractFileEngine
  • tst_QAbstractItemModel
  • tst_QAbstractItemView
  • tst_QAbstractNetworkCache
  • tst_QAbstractPrintDialog
  • tst_QAbstractProxyModel
  • tst_QAbstractScrollArea
  • tst_QAbstractSlider
  • tst_QAbstractSpinBox
  • tst_QAbstractTextDocumentLayout
  • tst_QAccessibility
  • tst_QAction
  • tst_QActionGroup
  • tst_QAlgorithms
  • tst_QAnimationGroup
  • tst_QApplication
  • ...
4015424-4064914
306 nextAscii = end;-
307 if (simdDecodeAscii(dst, nextAscii, src, end))
simdDecodeAsci...cii, src, end)Description
TRUEevaluated 8 times by 1 test
Evaluated by:
  • tst_QComplexText
FALSEevaluated 4064906 times by 546 tests
Evaluated by:
  • tst_Collections
  • tst_Compiler
  • tst_Gestures
  • tst_Lancelot
  • tst_LargeFile
  • tst_ModelTest
  • tst_NetworkSelfTest
  • tst_PlatformSocketEngine
  • tst_QAbstractButton
  • tst_QAbstractFileEngine
  • tst_QAbstractItemModel
  • tst_QAbstractItemView
  • tst_QAbstractNetworkCache
  • tst_QAbstractPrintDialog
  • tst_QAbstractProxyModel
  • tst_QAbstractScrollArea
  • tst_QAbstractSlider
  • tst_QAbstractSpinBox
  • tst_QAbstractTextDocumentLayout
  • tst_QAccessibility
  • tst_QAction
  • tst_QActionGroup
  • tst_QAlgorithms
  • tst_QAnimationGroup
  • tst_QApplication
  • ...
8-4064906
308 break;
executed 8 times by 1 test: break;
Executed by:
  • tst_QComplexText
8
309-
310 do {-
311 uchar b = *src++;-
312 int res = QUtf8Functions::fromUtf8<QUtf8BaseTraits>(b, dst, src, end);-
313 if (res < 0) {
res < 0Description
TRUEevaluated 530 times by 5 tests
Evaluated by:
  • tst_QString
  • tst_QTextCodec
  • tst_QTextStream
  • tst_QUrlInternal
  • tst_QXmlSimpleReader
FALSEevaluated 17941153 times by 546 tests
Evaluated by:
  • tst_Collections
  • tst_Compiler
  • tst_Gestures
  • tst_Lancelot
  • tst_LargeFile
  • tst_ModelTest
  • tst_NetworkSelfTest
  • tst_PlatformSocketEngine
  • tst_QAbstractButton
  • tst_QAbstractFileEngine
  • tst_QAbstractItemModel
  • tst_QAbstractItemView
  • tst_QAbstractNetworkCache
  • tst_QAbstractPrintDialog
  • tst_QAbstractProxyModel
  • tst_QAbstractScrollArea
  • tst_QAbstractSlider
  • tst_QAbstractSpinBox
  • tst_QAbstractTextDocumentLayout
  • tst_QAccessibility
  • tst_QAction
  • tst_QActionGroup
  • tst_QAlgorithms
  • tst_QAnimationGroup
  • tst_QApplication
  • ...
530-17941153
314 // decoding error-
315 *dst++ = QChar::ReplacementCharacter;-
316 }
executed 530 times by 5 tests: end of block
Executed by:
  • tst_QString
  • tst_QTextCodec
  • tst_QTextStream
  • tst_QUrlInternal
  • tst_QXmlSimpleReader
530
317 } while (src < nextAscii);
executed 17941683 times by 546 tests: end of block
Executed by:
  • tst_Collections
  • tst_Compiler
  • tst_Gestures
  • tst_Lancelot
  • tst_LargeFile
  • tst_ModelTest
  • tst_NetworkSelfTest
  • tst_PlatformSocketEngine
  • tst_QAbstractButton
  • tst_QAbstractFileEngine
  • tst_QAbstractItemModel
  • tst_QAbstractItemView
  • tst_QAbstractNetworkCache
  • tst_QAbstractPrintDialog
  • tst_QAbstractProxyModel
  • tst_QAbstractScrollArea
  • tst_QAbstractSlider
  • tst_QAbstractSpinBox
  • tst_QAbstractTextDocumentLayout
  • tst_QAccessibility
  • tst_QAction
  • tst_QActionGroup
  • tst_QAlgorithms
  • tst_QAnimationGroup
  • tst_QApplication
  • ...
src < nextAsciiDescription
TRUEevaluated 13876777 times by 543 tests
Evaluated by:
  • tst_Collections
  • tst_Compiler
  • tst_Gestures
  • tst_Lancelot
  • tst_LargeFile
  • tst_ModelTest
  • tst_NetworkSelfTest
  • tst_PlatformSocketEngine
  • tst_QAbstractButton
  • tst_QAbstractFileEngine
  • tst_QAbstractItemModel
  • tst_QAbstractItemView
  • tst_QAbstractNetworkCache
  • tst_QAbstractPrintDialog
  • tst_QAbstractProxyModel
  • tst_QAbstractScrollArea
  • tst_QAbstractSlider
  • tst_QAbstractSpinBox
  • tst_QAbstractTextDocumentLayout
  • tst_QAccessibility
  • tst_QAction
  • tst_QActionGroup
  • tst_QAlgorithms
  • tst_QAnimationGroup
  • tst_QApplication
  • ...
FALSEevaluated 4064906 times by 546 tests
Evaluated by:
  • tst_Collections
  • tst_Compiler
  • tst_Gestures
  • tst_Lancelot
  • tst_LargeFile
  • tst_ModelTest
  • tst_NetworkSelfTest
  • tst_PlatformSocketEngine
  • tst_QAbstractButton
  • tst_QAbstractFileEngine
  • tst_QAbstractItemModel
  • tst_QAbstractItemView
  • tst_QAbstractNetworkCache
  • tst_QAbstractPrintDialog
  • tst_QAbstractProxyModel
  • tst_QAbstractScrollArea
  • tst_QAbstractSlider
  • tst_QAbstractSpinBox
  • tst_QAbstractTextDocumentLayout
  • tst_QAccessibility
  • tst_QAction
  • tst_QActionGroup
  • tst_QAlgorithms
  • tst_QAnimationGroup
  • tst_QApplication
  • ...
4064906-17941683
318 }
executed 4064906 times by 546 tests: end of block
Executed by:
  • tst_Collections
  • tst_Compiler
  • tst_Gestures
  • tst_Lancelot
  • tst_LargeFile
  • tst_ModelTest
  • tst_NetworkSelfTest
  • tst_PlatformSocketEngine
  • tst_QAbstractButton
  • tst_QAbstractFileEngine
  • tst_QAbstractItemModel
  • tst_QAbstractItemView
  • tst_QAbstractNetworkCache
  • tst_QAbstractPrintDialog
  • tst_QAbstractProxyModel
  • tst_QAbstractScrollArea
  • tst_QAbstractSlider
  • tst_QAbstractSpinBox
  • tst_QAbstractTextDocumentLayout
  • tst_QAccessibility
  • tst_QAction
  • tst_QActionGroup
  • tst_QAlgorithms
  • tst_QAnimationGroup
  • tst_QApplication
  • ...
4064906
319 }
executed 4015432 times by 546 tests: end of block
Executed by:
  • tst_Collections
  • tst_Compiler
  • tst_Gestures
  • tst_Lancelot
  • tst_LargeFile
  • tst_ModelTest
  • tst_NetworkSelfTest
  • tst_PlatformSocketEngine
  • tst_QAbstractButton
  • tst_QAbstractFileEngine
  • tst_QAbstractItemModel
  • tst_QAbstractItemView
  • tst_QAbstractNetworkCache
  • tst_QAbstractPrintDialog
  • tst_QAbstractProxyModel
  • tst_QAbstractScrollArea
  • tst_QAbstractSlider
  • tst_QAbstractSpinBox
  • tst_QAbstractTextDocumentLayout
  • tst_QAccessibility
  • tst_QAction
  • tst_QActionGroup
  • tst_QAlgorithms
  • tst_QAnimationGroup
  • tst_QApplication
  • ...
4015432
320-
321 result.truncate(dst -return reinterpret_cast<const ushortQChar *>(result.constData()));
executed 4614286 times by 546 tests: return reinterpret_cast<QChar *>(dst);
Executed by:
  • tst_Collections
  • tst_Compiler
  • tst_Gestures
  • tst_Lancelot
  • tst_LargeFile
  • tst_ModelTest
  • tst_NetworkSelfTest
  • tst_PlatformSocketEngine
  • tst_QAbstractButton
  • tst_QAbstractFileEngine
  • tst_QAbstractItemModel
  • tst_QAbstractItemView
  • tst_QAbstractNetworkCache
  • tst_QAbstractPrintDialog
  • tst_QAbstractProxyModel
  • tst_QAbstractScrollArea
  • tst_QAbstractSlider
  • tst_QAbstractSpinBox
  • tst_QAbstractTextDocumentLayout
  • tst_QAccessibility
  • tst_QAction
  • tst_QActionGroup
  • tst_QAlgorithms
  • tst_QAnimationGroup
  • tst_QApplication
  • ...
4614286
return result;
executed 4614286 times by 546 tests: return reinterpret_cast<QChar *>(dst);
Executed by:
  • tst_Collections
  • tst_Compiler
  • tst_Gestures
  • tst_Lancelot
  • tst_LargeFile
  • tst_ModelTest
  • tst_NetworkSelfTest
  • tst_PlatformSocketEngine
  • tst_QAbstractButton
  • tst_QAbstractFileEngine
  • tst_QAbstractItemModel
  • tst_QAbstractItemView
  • tst_QAbstractNetworkCache
  • tst_QAbstractPrintDialog
  • tst_QAbstractProxyModel
  • tst_QAbstractScrollArea
  • tst_QAbstractSlider
  • tst_QAbstractSpinBox
  • tst_QAbstractTextDocumentLayout
  • tst_QAccessibility
  • tst_QAction
  • tst_QActionGroup
  • tst_QAlgorithms
  • tst_QAnimationGroup
  • tst_QApplication
  • ...
dst);
executed 4614286 times by 546 tests: return reinterpret_cast<QChar *>(dst);
Executed by:
  • tst_Collections
  • tst_Compiler
  • tst_Gestures
  • tst_Lancelot
  • tst_LargeFile
  • tst_ModelTest
  • tst_NetworkSelfTest
  • tst_PlatformSocketEngine
  • tst_QAbstractButton
  • tst_QAbstractFileEngine
  • tst_QAbstractItemModel
  • tst_QAbstractItemView
  • tst_QAbstractNetworkCache
  • tst_QAbstractPrintDialog
  • tst_QAbstractProxyModel
  • tst_QAbstractScrollArea
  • tst_QAbstractSlider
  • tst_QAbstractSpinBox
  • tst_QAbstractTextDocumentLayout
  • tst_QAccessibility
  • tst_QAction
  • tst_QActionGroup
  • tst_QAlgorithms
  • tst_QAnimationGroup
  • tst_QApplication
  • ...
322}-
323-
324QString QUtf8::convertToUnicode(const char *chars, int len, QTextCodec::ConverterState *state)-
325{-
326 bool headerdone = false;-
327 ushort replacement = QChar::ReplacementCharacter;-
328 int invalid = 0;-
329 int res;-
330 uchar ch = 0;-
331-
332 // See above for buffer requirements for stateless decoding. However, that-
333 // fails if the state is not empty. The following situations can add to the-
334 // requirements:-
335 // state contains chars starts with requirement-
336 // 1 of 2 bytes valid continuation 0-
337 // 2 of 3 bytes same 0-
338 // 3 bytes of 4 same +1 (need to insert surrogate pair)-
339 // 1 of 2 bytes invalid continuation +1 (need to insert replacement and restart)-
340 // 2 of 3 bytes same +1 (same)-
341 // 3 of 4 bytes same +1 (same)-
342 QString result(len + 1, Qt::Uninitialized);-
343-
344 ushort *dst = reinterpret_cast<ushort *>(const_cast<QChar *>(result.constData()));-
345 const uchar *src = reinterpret_cast<const uchar *>(chars);-
346 const uchar *end = src + len;-
347-
348 if (state) {-
349 if (state->flags & QTextCodec::IgnoreHeader)-
350 headerdone = true;-
351 if (state->flags & QTextCodec::ConvertInvalidToNull)-
352 replacement = QChar::Null;-
353 if (state->remainingChars) {-
354 // handle incoming state first-
355 uchar remainingCharsData[4]; // longest UTF-8 sequence possible-
356 int remainingCharsCount = state->remainingChars;-
357 int newCharsToCopy = qMin<int>(sizeof(remainingCharsData) - remainingCharsCount, end - src);-
358-
359 memset(remainingCharsData, 0, sizeof(remainingCharsData));-
360 memcpy(remainingCharsData, &state->state_data[0], remainingCharsCount);-
361 memcpy(remainingCharsData + remainingCharsCount, src, newCharsToCopy);-
362-
363 const uchar *begin = &remainingCharsData[1];-
364 res = QUtf8Functions::fromUtf8<QUtf8BaseTraits>(remainingCharsData[0], dst, begin,-
365 static_cast<const uchar *>(remainingCharsData) + remainingCharsCount + newCharsToCopy);-
366 if (res == QUtf8BaseTraits::Error || (res == QUtf8BaseTraits::EndOfString && len == 0)) {-
367 // special case for len == 0:-
368 // if we were supplied an empty string, terminate the previous, unfinished sequence with error-
369 ++invalid;-
370 *dst++ = replacement;-
371 } else if (res == QUtf8BaseTraits::EndOfString) {-
372 // if we got EndOfString again, then there were too few bytes in src;-
373 // copy to our state and return-
374 state->remainingChars = remainingCharsCount + newCharsToCopy;-
375 memcpy(&state->state_data[0], remainingCharsData, state->remainingChars);-
376 return QString();-
377 } else if (!headerdone && res >= 0) {-
378 // eat the UTF-8 BOM-
379 headerdone = true;-
380 if (dst[-1] == 0xfeff)-
381 --dst;-
382 }-
383-
384 // adjust src now that we have maybe consumed a few chars-
385 if (res >= 0) {-
386 Q_ASSERT(res > remainingCharsCount);-
387 src += res - remainingCharsCount;-
388 }-
389 }-
390 }-
391-
392 // main body, stateless decoding-
393 res = 0;-
394 const uchar *nextAscii = src;-
395 const uchar *start = src;-
396 while (res >= 0 && src < end) {-
397 if (src >= nextAscii && simdDecodeAscii(dst, nextAscii, src, end))-
398 break;-
399-
400 ch = *src++;-
401 res = QUtf8Functions::fromUtf8<QUtf8BaseTraits>(ch, dst, src, end);-
402 if (!headerdone && res >= 0) {-
403 headerdone = true;-
404 if (src == start + 3) { // 3 == sizeof(utf8-bom)-
405 // eat the UTF-8 BOM (it can only appear at the beginning of the string).-
406 if (dst[-1] == 0xfeff)-
407 --dst;-
408 }-
409 }-
410 if (res == QUtf8BaseTraits::Error) {-
411 res = 0;-
412 ++invalid;-
413 *dst++ = replacement;-
414 }-
415 }-
416-
417 if (!state && res == QUtf8BaseTraits::EndOfString) {-
418 // unterminated UTF sequence-
419 *dst++ = QChar::ReplacementCharacter;-
420 while (src++ < end)-
421 *dst++ = QChar::ReplacementCharacter;-
422 }-
423-
424 result.truncate(dst - (const ushort *)result.unicode());-
425 if (state) {-
426 state->invalidChars += invalid;-
427 if (headerdone)-
428 state->flags |= QTextCodec::IgnoreHeader;-
429 if (res == QUtf8BaseTraits::EndOfString) {-
430 --src; // unread the byte in ch-
431 state->remainingChars = end - src;-
432 memcpy(&state->state_data[0], src, end - src);-
433 } else {-
434 state->remainingChars = 0;-
435 }-
436 }-
437 return result;-
438}-
439-
440QByteArray QUtf16::convertFromUnicode(const QChar *uc, int len, QTextCodec::ConverterState *state, DataEndianness e)-
441{-
442 DataEndianness endian = e;-
443 int length = 2*len;-
444 if (!state || (!(state->flags & QTextCodec::IgnoreHeader))) {-
445 length += 2;-
446 }-
447 if (e == DetectEndianness) {-
448 endian = (QSysInfo::ByteOrder == QSysInfo::BigEndian) ? BigEndianness : LittleEndianness;-
449 }-
450-
451 QByteArray d;-
452 d.resize(length);-
453 char *data = d.data();-
454 if (!state || !(state->flags & QTextCodec::IgnoreHeader)) {-
455 QChar bom(QChar::ByteOrderMark);-
456 if (endian == BigEndianness) {-
457 data[0] = bom.row();-
458 data[1] = bom.cell();-
459 } else {-
460 data[0] = bom.cell();-
461 data[1] = bom.row();-
462 }-
463 data += 2;-
464 }-
465 if (endian == BigEndianness) {-
466 for (int i = 0; i < len; ++i) {-
467 *(data++) = uc[i].row();-
468 *(data++) = uc[i].cell();-
469 }-
470 } else {-
471 for (int i = 0; i < len; ++i) {-
472 *(data++) = uc[i].cell();-
473 *(data++) = uc[i].row();-
474 }-
475 }-
476-
477 if (state) {-
478 state->remainingChars = 0;-
479 state->flags |= QTextCodec::IgnoreHeader;-
480 }-
481 return d;-
482}-
483-
484QString QUtf16::convertToUnicode(const char *chars, int len, QTextCodec::ConverterState *state, DataEndianness e)-
485{-
486 DataEndianness endian = e;-
487 bool half = false;-
488 uchar buf = 0;-
489 bool headerdone = false;-
490 if (state) {-
491 headerdone = state->flags & QTextCodec::IgnoreHeader;-
492 if (endian == DetectEndianness)-
493 endian = (DataEndianness)state->state_data[Endian];-
494 if (state->remainingChars) {-
495 half = true;-
496 buf = state->state_data[Data];-
497 }-
498 }-
499 if (headerdone && endian == DetectEndianness)-
500 endian = (QSysInfo::ByteOrder == QSysInfo::BigEndian) ? BigEndianness : LittleEndianness;-
501-
502 QString result(len, Qt::Uninitialized); // worst case-
503 QChar *qch = (QChar *)result.data();-
504 while (len--) {-
505 if (half) {-
506 QChar ch;-
507 if (endian == LittleEndianness) {-
508 ch.setRow(*chars++);-
509 ch.setCell(buf);-
510 } else {-
511 ch.setRow(buf);-
512 ch.setCell(*chars++);-
513 }-
514 if (!headerdone) {-
515 headerdone = true;-
516 if (endian == DetectEndianness) {-
517 if (ch == QChar::ByteOrderSwapped) {-
518 endian = LittleEndianness;-
519 } else if (ch == QChar::ByteOrderMark) {-
520 endian = BigEndianness;-
521 } else {-
522 if (QSysInfo::ByteOrder == QSysInfo::BigEndian) {-
523 endian = BigEndianness;-
524 } else {-
525 endian = LittleEndianness;-
526 ch = QChar((ch.unicode() >> 8) | ((ch.unicode() & 0xff) << 8));-
527 }-
528 *qch++ = ch;-
529 }-
530 } else if (ch != QChar::ByteOrderMark) {-
531 *qch++ = ch;-
532 }-
533 } else {-
534 *qch++ = ch;-
535 }-
536 half = false;-
537 } else {-
538 buf = *chars++;-
539 half = true;-
540 }-
541 }-
542 result.truncate(qch - result.unicode());-
543-
544 if (state) {-
545 if (headerdone)-
546 state->flags |= QTextCodec::IgnoreHeader;-
547 state->state_data[Endian] = endian;-
548 if (half) {-
549 state->remainingChars = 1;-
550 state->state_data[Data] = buf;-
551 } else {-
552 state->remainingChars = 0;-
553 state->state_data[Data] = 0;-
554 }-
555 }-
556 return result;-
557}-
558-
559QByteArray QUtf32::convertFromUnicode(const QChar *uc, int len, QTextCodec::ConverterState *state, DataEndianness e)-
560{-
561 DataEndianness endian = e;-
562 int length = 4*len;-
563 if (!state || (!(state->flags & QTextCodec::IgnoreHeader))) {-
564 length += 4;-
565 }-
566 if (e == DetectEndianness) {-
567 endian = (QSysInfo::ByteOrder == QSysInfo::BigEndian) ? BigEndianness : LittleEndianness;-
568 }-
569-
570 QByteArray d(length, Qt::Uninitialized);-
571 char *data = d.data();-
572 if (!state || !(state->flags & QTextCodec::IgnoreHeader)) {-
573 if (endian == BigEndianness) {-
574 data[0] = 0;-
575 data[1] = 0;-
576 data[2] = (char)0xfe;-
577 data[3] = (char)0xff;-
578 } else {-
579 data[0] = (char)0xff;-
580 data[1] = (char)0xfe;-
581 data[2] = 0;-
582 data[3] = 0;-
583 }-
584 data += 4;-
585 }-
586-
587 QStringIterator i(uc, uc + len);-
588 if (endian == BigEndianness) {-
589 while (i.hasNext()) {-
590 uint cp = i.next();-
591-
592 *(data++) = cp >> 24;-
593 *(data++) = (cp >> 16) & 0xff;-
594 *(data++) = (cp >> 8) & 0xff;-
595 *(data++) = cp & 0xff;-
596 }-
597 } else {-
598 while (i.hasNext()) {-
599 uint cp = i.next();-
600-
601 *(data++) = cp & 0xff;-
602 *(data++) = (cp >> 8) & 0xff;-
603 *(data++) = (cp >> 16) & 0xff;-
604 *(data++) = cp >> 24;-
605 }-
606 }-
607-
608 if (state) {-
609 state->remainingChars = 0;-
610 state->flags |= QTextCodec::IgnoreHeader;-
611 }-
612 return d;-
613}-
614-
615QString QUtf32::convertToUnicode(const char *chars, int len, QTextCodec::ConverterState *state, DataEndianness e)-
616{-
617 DataEndianness endian = e;-
618 uchar tuple[4];-
619 int num = 0;-
620 bool headerdone = false;-
621 if (state) {-
622 headerdone = state->flags & QTextCodec::IgnoreHeader;-
623 if (endian == DetectEndianness) {-
624 endian = (DataEndianness)state->state_data[Endian];-
625 }-
626 num = state->remainingChars;-
627 memcpy(tuple, &state->state_data[Data], 4);-
628 }-
629 if (headerdone && endian == DetectEndianness)-
630 endian = (QSysInfo::ByteOrder == QSysInfo::BigEndian) ? BigEndianness : LittleEndianness;-
631-
632 QString result;-
633 result.resize((num + len) >> 2 << 1); // worst case-
634 QChar *qch = (QChar *)result.data();-
635-
636 const char *end = chars + len;-
637 while (chars < end) {-
638 tuple[num++] = *chars++;-
639 if (num == 4) {-
640 if (!headerdone) {-
641 if (endian == DetectEndianness) {-
642 if (tuple[0] == 0xff && tuple[1] == 0xfe && tuple[2] == 0 && tuple[3] == 0 && endian != BigEndianness) {-
643 endian = LittleEndianness;-
644 num = 0;-
645 continue;-
646 } else if (tuple[0] == 0 && tuple[1] == 0 && tuple[2] == 0xfe && tuple[3] == 0xff && endian != LittleEndianness) {-
647 endian = BigEndianness;-
648 num = 0;-
649 continue;-
650 } else if (QSysInfo::ByteOrder == QSysInfo::BigEndian) {-
651 endian = BigEndianness;-
652 } else {-
653 endian = LittleEndianness;-
654 }-
655 } else if (((endian == BigEndianness) ? qFromBigEndian<quint32>(tuple) : qFromLittleEndian<quint32>(tuple)) == QChar::ByteOrderMark) {-
656 num = 0;-
657 continue;-
658 }-
659 }-
660 uint code = (endian == BigEndianness) ? qFromBigEndian<quint32>(tuple) : qFromLittleEndian<quint32>(tuple);-
661 if (QChar::requiresSurrogates(code)) {-
662 *qch++ = QChar::highSurrogate(code);-
663 *qch++ = QChar::lowSurrogate(code);-
664 } else {-
665 *qch++ = code;-
666 }-
667 num = 0;-
668 }-
669 }-
670 result.truncate(qch - result.unicode());-
671-
672 if (state) {-
673 if (headerdone)-
674 state->flags |= QTextCodec::IgnoreHeader;-
675 state->state_data[Endian] = endian;-
676 state->remainingChars = num;-
677 memcpy(&state->state_data[Data], tuple, 4);-
678 }-
679 return result;-
680}-
681-
682-
683#ifndef QT_NO_TEXTCODEC-
684-
685QUtf8Codec::~QUtf8Codec()-
686{-
687}-
688-
689QByteArray QUtf8Codec::convertFromUnicode(const QChar *uc, int len, ConverterState *state) const-
690{-
691 return QUtf8::convertFromUnicode(uc, len, state);-
692}-
693-
694void QUtf8Codec::convertToUnicode(QString *target, const char *chars, int len, ConverterState *state) const-
695{-
696 *target += QUtf8::convertToUnicode(chars, len, state);-
697}-
698-
699QString QUtf8Codec::convertToUnicode(const char *chars, int len, ConverterState *state) const-
700{-
701 return QUtf8::convertToUnicode(chars, len, state);-
702}-
703-
704QByteArray QUtf8Codec::name() const-
705{-
706 return "UTF-8";-
707}-
708-
709int QUtf8Codec::mibEnum() const-
710{-
711 return 106;-
712}-
713-
714QUtf16Codec::~QUtf16Codec()-
715{-
716}-
717-
718QByteArray QUtf16Codec::convertFromUnicode(const QChar *uc, int len, ConverterState *state) const-
719{-
720 return QUtf16::convertFromUnicode(uc, len, state, e);-
721}-
722-
723QString QUtf16Codec::convertToUnicode(const char *chars, int len, ConverterState *state) const-
724{-
725 return QUtf16::convertToUnicode(chars, len, state, e);-
726}-
727-
728int QUtf16Codec::mibEnum() const-
729{-
730 return 1015;-
731}-
732-
733QByteArray QUtf16Codec::name() const-
734{-
735 return "UTF-16";-
736}-
737-
738QList<QByteArray> QUtf16Codec::aliases() const-
739{-
740 return QList<QByteArray>();-
741}-
742-
743int QUtf16BECodec::mibEnum() const-
744{-
745 return 1013;-
746}-
747-
748QByteArray QUtf16BECodec::name() const-
749{-
750 return "UTF-16BE";-
751}-
752-
753QList<QByteArray> QUtf16BECodec::aliases() const-
754{-
755 QList<QByteArray> list;-
756 return list;-
757}-
758-
759int QUtf16LECodec::mibEnum() const-
760{-
761 return 1014;-
762}-
763-
764QByteArray QUtf16LECodec::name() const-
765{-
766 return "UTF-16LE";-
767}-
768-
769QList<QByteArray> QUtf16LECodec::aliases() const-
770{-
771 QList<QByteArray> list;-
772 return list;-
773}-
774-
775QUtf32Codec::~QUtf32Codec()-
776{-
777}-
778-
779QByteArray QUtf32Codec::convertFromUnicode(const QChar *uc, int len, ConverterState *state) const-
780{-
781 return QUtf32::convertFromUnicode(uc, len, state, e);-
782}-
783-
784QString QUtf32Codec::convertToUnicode(const char *chars, int len, ConverterState *state) const-
785{-
786 return QUtf32::convertToUnicode(chars, len, state, e);-
787}-
788-
789int QUtf32Codec::mibEnum() const-
790{-
791 return 1017;-
792}-
793-
794QByteArray QUtf32Codec::name() const-
795{-
796 return "UTF-32";-
797}-
798-
799QList<QByteArray> QUtf32Codec::aliases() const-
800{-
801 QList<QByteArray> list;-
802 return list;-
803}-
804-
805int QUtf32BECodec::mibEnum() const-
806{-
807 return 1018;-
808}-
809-
810QByteArray QUtf32BECodec::name() const-
811{-
812 return "UTF-32BE";-
813}-
814-
815QList<QByteArray> QUtf32BECodec::aliases() const-
816{-
817 QList<QByteArray> list;-
818 return list;-
819}-
820-
821int QUtf32LECodec::mibEnum() const-
822{-
823 return 1019;-
824}-
825-
826QByteArray QUtf32LECodec::name() const-
827{-
828 return "UTF-32LE";-
829}-
830-
831QList<QByteArray> QUtf32LECodec::aliases() const-
832{-
833 QList<QByteArray> list;-
834 return list;-
835}-
836-
837#endif //QT_NO_TEXTCODEC-
838-
839QT_END_NAMESPACE-
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