1 /****************************************************************************
3 ** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
4 ** Contact: http://www.qt-project.org/
6 ** This file is part of the QtCore module of the Qt Toolkit.
8 ** $QT_BEGIN_LICENSE:LGPL$
9 ** GNU Lesser General Public License Usage
10 ** This file may be used under the terms of the GNU Lesser General Public
11 ** License version 2.1 as published by the Free Software Foundation and
12 ** appearing in the file LICENSE.LGPL included in the packaging of this
13 ** file. Please review the following information to ensure the GNU Lesser
14 ** General Public License version 2.1 requirements will be met:
15 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
17 ** In addition, as a special exception, Nokia gives you certain additional
18 ** rights. These rights are described in the Nokia Qt LGPL Exception
19 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
21 ** GNU General Public License Usage
22 ** Alternatively, this file may be used under the terms of the GNU General
23 ** Public License version 3.0 as published by the Free Software Foundation
24 ** and appearing in the file LICENSE.GPL included in the packaging of this
25 ** file. Please review the following information to ensure the GNU General
26 ** Public License version 3.0 requirements will be met:
27 ** http://www.gnu.org/copyleft/gpl.html.
30 ** Alternatively, this file may be used in accordance with the terms and
31 ** conditions contained in a signed written agreement between you and Nokia.
40 ****************************************************************************/
45 #include <QtCore/qchar.h>
46 #include <QtCore/qbytearray.h>
47 #include <QtCore/qrefcount.h>
48 #include <QtCore/qnamespace.h>
55 #error qstring.h must be included before any header file that defines truncate
65 class QRegularExpression;
70 template <typename T> class QVector;
73 QtPrivate::RefCount ref;
76 uint capacityReserved : 1;
80 inline ushort *data() { return reinterpret_cast<ushort *>(reinterpret_cast<char *>(this) + offset); }
81 inline const ushort *data() const { return reinterpret_cast<const ushort *>(reinterpret_cast<const char *>(this) + offset); }
84 #if defined(Q_COMPILER_UNICODE_STRINGS)
86 #define QT_UNICODE_LITERAL_II(str) u"" str
87 typedef char16_t qunicodechar;
89 #elif defined(Q_OS_WIN) \
90 || (defined(__SIZEOF_WCHAR_T__) && __SIZEOF_WCHAR_T__ == 2) \
91 || (!defined(__SIZEOF_WCHAR_T__) && defined(WCHAR_MAX) && (WCHAR_MAX - 0 < 65536))
94 #if defined(Q_CC_MSVC)
95 # define QT_UNICODE_LITERAL_II(str) L##str
97 # define QT_UNICODE_LITERAL_II(str) L"" str
99 typedef wchar_t qunicodechar;
103 #define QT_NO_UNICODE_LITERAL
104 typedef ushort qunicodechar;
108 Q_STATIC_ASSERT_X(sizeof(qunicodechar) == 2,
109 "qunicodechar must typedef an integral type of size 2");
111 #ifndef QT_NO_UNICODE_LITERAL
112 # define QT_UNICODE_LITERAL(str) QT_UNICODE_LITERAL_II(str)
113 # if defined(Q_COMPILER_LAMBDA)
115 # define QStringLiteral(str) \
116 ([]() -> QStringDataPtr { \
117 enum { Size = sizeof(QT_UNICODE_LITERAL(str))/2 - 1 }; \
118 static const QStaticStringData<Size> qstring_literal = { \
119 Q_STATIC_STRING_DATA_HEADER_INITIALIZER(Size), \
120 QT_UNICODE_LITERAL(str) }; \
121 QStringDataPtr holder = { qstring_literal.data_ptr() }; \
126 # elif defined(Q_CC_GNU)
127 // We need to create a QStringData in the .rodata section of memory
128 // and the only way to do that is to create a "static const" variable.
129 // To do that, we need the __extension__ {( )} trick which only GCC supports
131 # define QStringLiteral(str) \
133 enum { Size = sizeof(QT_UNICODE_LITERAL(str))/2 - 1 }; \
134 static const QStaticStringData<Size> qstring_literal = { \
135 Q_STATIC_STRING_DATA_HEADER_INITIALIZER(Size), \
136 QT_UNICODE_LITERAL(str) }; \
137 QStringDataPtr holder = { qstring_literal.data_ptr() }; \
143 #endif // QT_NO_UNICODE_LITERAL
145 #ifndef QStringLiteral
146 // no lambdas, not GCC, or GCC in C++98 mode with 4-byte wchar_t
147 // fallback, uses QLatin1String as next best options
149 # define QStringLiteral(str) QLatin1String(str)
152 #define Q_STATIC_STRING_DATA_HEADER_INITIALIZER_WITH_OFFSET(size, offset) \
153 { Q_REFCOUNT_INITIALIZE_STATIC, size, 0, 0, offset } \
156 #define Q_STATIC_STRING_DATA_HEADER_INITIALIZER(size) \
157 Q_STATIC_STRING_DATA_HEADER_INITIALIZER_WITH_OFFSET(size, sizeof(QStringData)) \
161 struct QStaticStringData
164 qunicodechar data[N + 1];
166 QStringData *data_ptr() const
168 Q_ASSERT(str.ref.isStatic());
169 return const_cast<QStringData *>(&str);
173 struct QStringDataPtr
178 class Q_CORE_EXPORT QString
181 typedef QStringData Data;
184 explicit QString(const QChar *unicode, int size = -1);
186 QString(int size, QChar c);
187 inline QString(const QLatin1String &latin1);
188 inline QString(const QString &);
190 QString &operator=(QChar c);
191 QString &operator=(const QString &);
192 inline QString &operator=(const QLatin1String &);
193 #ifdef Q_COMPILER_RVALUE_REFS
194 inline QString &operator=(QString &&other)
195 { qSwap(d, other.d); return *this; }
197 inline void swap(QString &other) { qSwap(d, other.d); }
198 inline int size() const { return d->size; }
199 inline int count() const { return d->size; }
200 inline int length() const;
201 inline bool isEmpty() const;
202 void resize(int size);
204 QString &fill(QChar c, int size = -1);
205 void truncate(int pos);
208 int capacity() const;
209 inline void reserve(int size);
210 inline void squeeze();
212 inline const QChar *unicode() const;
213 inline QChar *data();
214 inline const QChar *data() const;
215 inline const QChar *constData() const;
217 inline void detach();
218 inline bool isDetached() const;
219 inline bool isSharedWith(const QString &other) const { return d == other.d; }
222 inline const QChar at(int i) const;
223 const QChar operator[](int i) const;
224 QCharRef operator[](int i);
225 const QChar operator[](uint i) const;
226 QCharRef operator[](uint i);
228 QString arg(qlonglong a, int fieldwidth=0, int base=10,
229 QChar fillChar = QLatin1Char(' ')) const Q_REQUIRED_RESULT;
230 QString arg(qulonglong a, int fieldwidth=0, int base=10,
231 QChar fillChar = QLatin1Char(' ')) const Q_REQUIRED_RESULT;
232 QString arg(long a, int fieldwidth=0, int base=10,
233 QChar fillChar = QLatin1Char(' ')) const Q_REQUIRED_RESULT;
234 QString arg(ulong a, int fieldwidth=0, int base=10,
235 QChar fillChar = QLatin1Char(' ')) const Q_REQUIRED_RESULT;
236 QString arg(int a, int fieldWidth = 0, int base = 10,
237 QChar fillChar = QLatin1Char(' ')) const Q_REQUIRED_RESULT;
238 QString arg(uint a, int fieldWidth = 0, int base = 10,
239 QChar fillChar = QLatin1Char(' ')) const Q_REQUIRED_RESULT;
240 QString arg(short a, int fieldWidth = 0, int base = 10,
241 QChar fillChar = QLatin1Char(' ')) const Q_REQUIRED_RESULT;
242 QString arg(ushort a, int fieldWidth = 0, int base = 10,
243 QChar fillChar = QLatin1Char(' ')) const Q_REQUIRED_RESULT;
244 QString arg(double a, int fieldWidth = 0, char fmt = 'g', int prec = -1,
245 QChar fillChar = QLatin1Char(' ')) const Q_REQUIRED_RESULT;
246 QString arg(char a, int fieldWidth = 0,
247 QChar fillChar = QLatin1Char(' ')) const Q_REQUIRED_RESULT;
248 QString arg(QChar a, int fieldWidth = 0,
249 QChar fillChar = QLatin1Char(' ')) const Q_REQUIRED_RESULT;
250 QString arg(const QString &a, int fieldWidth = 0,
251 QChar fillChar = QLatin1Char(' ')) const Q_REQUIRED_RESULT;
252 QString arg(const QString &a1, const QString &a2) const Q_REQUIRED_RESULT;
253 QString arg(const QString &a1, const QString &a2, const QString &a3) const Q_REQUIRED_RESULT;
254 QString arg(const QString &a1, const QString &a2, const QString &a3,
255 const QString &a4) const Q_REQUIRED_RESULT;
256 QString arg(const QString &a1, const QString &a2, const QString &a3,
257 const QString &a4, const QString &a5) const Q_REQUIRED_RESULT;
258 QString arg(const QString &a1, const QString &a2, const QString &a3,
259 const QString &a4, const QString &a5, const QString &a6) const Q_REQUIRED_RESULT;
260 QString arg(const QString &a1, const QString &a2, const QString &a3,
261 const QString &a4, const QString &a5, const QString &a6,
262 const QString &a7) const Q_REQUIRED_RESULT;
263 QString arg(const QString &a1, const QString &a2, const QString &a3,
264 const QString &a4, const QString &a5, const QString &a6,
265 const QString &a7, const QString &a8) const Q_REQUIRED_RESULT;
266 QString arg(const QString &a1, const QString &a2, const QString &a3,
267 const QString &a4, const QString &a5, const QString &a6,
268 const QString &a7, const QString &a8, const QString &a9) const Q_REQUIRED_RESULT;
270 QString &vsprintf(const char *format, va_list ap)
271 #if defined(Q_CC_GNU) && !defined(__INSURE__)
272 __attribute__ ((format (printf, 2, 0)))
275 QString &sprintf(const char *format, ...)
276 #if defined(Q_CC_GNU) && !defined(__INSURE__)
277 __attribute__ ((format (printf, 2, 3)))
281 int indexOf(QChar c, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
282 int indexOf(const QString &s, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
283 int indexOf(const QLatin1String &s, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
284 int indexOf(const QStringRef &s, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
285 int lastIndexOf(QChar c, int from = -1, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
286 int lastIndexOf(const QString &s, int from = -1, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
287 int lastIndexOf(const QLatin1String &s, int from = -1, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
288 int lastIndexOf(const QStringRef &s, int from = -1, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
290 inline bool contains(QChar c, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
291 inline bool contains(const QString &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
292 inline bool contains(const QStringRef &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
293 int count(QChar c, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
294 int count(const QString &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
295 int count(const QStringRef &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
298 int indexOf(const QRegExp &, int from = 0) const;
299 int lastIndexOf(const QRegExp &, int from = -1) const;
300 inline bool contains(const QRegExp &rx) const { return indexOf(rx) != -1; }
301 int count(const QRegExp &) const;
303 int indexOf(QRegExp &, int from = 0) const;
304 int lastIndexOf(QRegExp &, int from = -1) const;
305 inline bool contains(QRegExp &rx) const { return indexOf(rx) != -1; }
309 int indexOf(const QRegularExpression &re, int from = 0) const;
310 int lastIndexOf(const QRegularExpression &re, int from = -1) const;
311 bool contains(const QRegularExpression &re) const;
312 int count(const QRegularExpression &re) const;
316 SectionDefault = 0x00,
317 SectionSkipEmpty = 0x01,
318 SectionIncludeLeadingSep = 0x02,
319 SectionIncludeTrailingSep = 0x04,
320 SectionCaseInsensitiveSeps = 0x08
322 Q_DECLARE_FLAGS(SectionFlags, SectionFlag)
324 QString section(QChar sep, int start, int end = -1, SectionFlags flags = SectionDefault) const;
325 QString section(const QString &in_sep, int start, int end = -1, SectionFlags flags = SectionDefault) const;
327 QString section(const QRegExp ®, int start, int end = -1, SectionFlags flags = SectionDefault) const;
330 QString section(const QRegularExpression &re, int start, int end = -1, SectionFlags flags = SectionDefault) const;
332 QString left(int n) const Q_REQUIRED_RESULT;
333 QString right(int n) const Q_REQUIRED_RESULT;
334 QString mid(int position, int n = -1) const Q_REQUIRED_RESULT;
335 QStringRef leftRef(int n) const Q_REQUIRED_RESULT;
336 QStringRef rightRef(int n) const Q_REQUIRED_RESULT;
337 QStringRef midRef(int position, int n = -1) const Q_REQUIRED_RESULT;
339 bool startsWith(const QString &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
340 bool startsWith(const QStringRef &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
341 bool startsWith(const QLatin1String &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
342 bool startsWith(QChar c, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
343 bool endsWith(const QString &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
344 bool endsWith(const QStringRef &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
345 bool endsWith(const QLatin1String &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
346 bool endsWith(QChar c, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
348 QString leftJustified(int width, QChar fill = QLatin1Char(' '), bool trunc = false) const Q_REQUIRED_RESULT;
349 QString rightJustified(int width, QChar fill = QLatin1Char(' '), bool trunc = false) const Q_REQUIRED_RESULT;
351 QString toLower() const Q_REQUIRED_RESULT;
352 QString toUpper() const Q_REQUIRED_RESULT;
353 QString toCaseFolded() const Q_REQUIRED_RESULT;
355 QString trimmed() const Q_REQUIRED_RESULT;
356 QString simplified() const Q_REQUIRED_RESULT;
357 QString toHtmlEscaped() const Q_REQUIRED_RESULT;
359 QString &insert(int i, QChar c);
360 QString &insert(int i, const QChar *uc, int len);
361 inline QString &insert(int i, const QString &s) { return insert(i, s.constData(), s.length()); }
362 QString &insert(int i, const QLatin1String &s);
363 QString &append(QChar c);
364 QString &append(const QString &s);
365 QString &append(const QStringRef &s);
366 QString &append(const QLatin1String &s);
367 inline QString &prepend(QChar c) { return insert(0, c); }
368 inline QString &prepend(const QString &s) { return insert(0, s); }
369 inline QString &prepend(const QLatin1String &s) { return insert(0, s); }
371 inline QString &operator+=(QChar c) {
372 if (d->ref.isShared() || d->size + 1 > int(d->alloc))
373 reallocData(d->size + 1, true);
374 d->data()[d->size++] = c.unicode();
375 d->data()[d->size] = '\0';
379 inline QString &operator+=(QChar::SpecialCharacter c) { return append(QChar(c)); }
380 inline QString &operator+=(const QString &s) { return append(s); }
381 inline QString &operator+=(const QStringRef &s) { return append(s); }
382 inline QString &operator+=(const QLatin1String &s) { return append(s); }
384 QString &remove(int i, int len);
385 QString &remove(QChar c, Qt::CaseSensitivity cs = Qt::CaseSensitive);
386 QString &remove(const QString &s, Qt::CaseSensitivity cs = Qt::CaseSensitive);
387 QString &replace(int i, int len, QChar after);
388 QString &replace(int i, int len, const QChar *s, int slen);
389 QString &replace(int i, int len, const QString &after);
390 QString &replace(QChar before, QChar after, Qt::CaseSensitivity cs = Qt::CaseSensitive);
391 QString &replace(const QChar *before, int blen, const QChar *after, int alen, Qt::CaseSensitivity cs = Qt::CaseSensitive);
392 QString &replace(const QLatin1String &before, const QLatin1String &after, Qt::CaseSensitivity cs = Qt::CaseSensitive);
393 QString &replace(const QLatin1String &before, const QString &after, Qt::CaseSensitivity cs = Qt::CaseSensitive);
394 QString &replace(const QString &before, const QLatin1String &after, Qt::CaseSensitivity cs = Qt::CaseSensitive);
395 QString &replace(const QString &before, const QString &after,
396 Qt::CaseSensitivity cs = Qt::CaseSensitive);
397 QString &replace(QChar c, const QString &after, Qt::CaseSensitivity cs = Qt::CaseSensitive);
398 QString &replace(QChar c, const QLatin1String &after, Qt::CaseSensitivity cs = Qt::CaseSensitive);
400 QString &replace(const QRegExp &rx, const QString &after);
401 inline QString &remove(const QRegExp &rx)
402 { return replace(rx, QString()); }
405 QString &replace(const QRegularExpression &re, const QString &after);
406 inline QString &remove(const QRegularExpression &re)
407 { return replace(re, QString()); }
410 enum SplitBehavior { KeepEmptyParts, SkipEmptyParts };
412 QStringList split(const QString &sep, SplitBehavior behavior = KeepEmptyParts,
413 Qt::CaseSensitivity cs = Qt::CaseSensitive) const Q_REQUIRED_RESULT;
414 QStringList split(QChar sep, SplitBehavior behavior = KeepEmptyParts,
415 Qt::CaseSensitivity cs = Qt::CaseSensitive) const Q_REQUIRED_RESULT;
417 QStringList split(const QRegExp &sep, SplitBehavior behavior = KeepEmptyParts) const Q_REQUIRED_RESULT;
420 QStringList split(const QRegularExpression &sep, SplitBehavior behavior = KeepEmptyParts) const Q_REQUIRED_RESULT;
422 enum NormalizationForm {
425 NormalizationForm_KD,
428 QString normalized(NormalizationForm mode) const Q_REQUIRED_RESULT;
429 QString normalized(NormalizationForm mode, QChar::UnicodeVersion version) const Q_REQUIRED_RESULT;
431 QString repeated(int times) const;
433 const ushort *utf16() const;
435 QByteArray toAscii() const Q_REQUIRED_RESULT;
436 QByteArray toLatin1() const Q_REQUIRED_RESULT;
437 QByteArray toUtf8() const Q_REQUIRED_RESULT;
438 QByteArray toLocal8Bit() const Q_REQUIRED_RESULT;
439 QVector<uint> toUcs4() const Q_REQUIRED_RESULT;
441 // note - this are all inline so we can benefit from strlen() compile time optimizations
442 static inline QString fromAscii(const char *str, int size = -1)
444 QStringDataPtr dataPtr = { fromAscii_helper(str, (str && size == -1) ? int(strlen(str)) : size) };
445 return QString(dataPtr);
447 static inline QString fromLatin1(const char *str, int size = -1)
449 QStringDataPtr dataPtr = { fromLatin1_helper(str, (str && size == -1) ? int(strlen(str)) : size) };
450 return QString(dataPtr);
452 static inline QString fromUtf8(const char *str, int size = -1)
454 return fromUtf8_helper(str, (str && size == -1) ? int(strlen(str)) : size);
456 static inline QString fromLocal8Bit(const char *str, int size = -1)
458 return fromLocal8Bit_helper(str, (str && size == -1) ? int(strlen(str)) : size);
460 static inline QString fromAscii(const QByteArray &str) { return fromAscii(str.data(), str.size()); }
461 static inline QString fromLatin1(const QByteArray &str) { return fromLatin1(str.data(), str.size()); }
462 static inline QString fromUtf8(const QByteArray &str) { return fromUtf8(str.data(), str.size()); }
463 static inline QString fromLocal8Bit(const QByteArray &str) { return fromLocal8Bit(str.data(), str.size()); }
464 static QString fromUtf16(const ushort *, int size = -1);
465 static QString fromUcs4(const uint *, int size = -1);
466 static QString fromRawData(const QChar *, int size);
468 inline int toWCharArray(wchar_t *array) const;
469 static inline QString fromWCharArray(const wchar_t *string, int size = -1) Q_REQUIRED_RESULT;
471 QString &setRawData(const QChar *unicode, int size);
472 QString &setUnicode(const QChar *unicode, int size);
473 inline QString &setUtf16(const ushort *utf16, int size);
475 int compare(const QString &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
476 int compare(const QLatin1String &other, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
478 static inline int compare(const QString &s1, const QString &s2, Qt::CaseSensitivity cs = Qt::CaseSensitive)
479 { return s1.compare(s2, cs); }
481 static inline int compare(const QString& s1, const QLatin1String &s2,
482 Qt::CaseSensitivity cs = Qt::CaseSensitive)
483 { return s1.compare(s2, cs); }
484 static inline int compare(const QLatin1String& s1, const QString &s2,
485 Qt::CaseSensitivity cs = Qt::CaseSensitive)
486 { return -s2.compare(s1, cs); }
488 int compare(const QStringRef &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
489 static int compare(const QString &s1, const QStringRef &s2,
490 Qt::CaseSensitivity = Qt::CaseSensitive);
492 int localeAwareCompare(const QString& s) const;
493 static int localeAwareCompare(const QString& s1, const QString& s2)
494 { return s1.localeAwareCompare(s2); }
496 int localeAwareCompare(const QStringRef &s) const;
497 static int localeAwareCompare(const QString& s1, const QStringRef& s2);
499 short toShort(bool *ok=0, int base=10) const;
500 ushort toUShort(bool *ok=0, int base=10) const;
501 int toInt(bool *ok=0, int base=10) const;
502 uint toUInt(bool *ok=0, int base=10) const;
503 long toLong(bool *ok=0, int base=10) const;
504 ulong toULong(bool *ok=0, int base=10) const;
505 qlonglong toLongLong(bool *ok=0, int base=10) const;
506 qulonglong toULongLong(bool *ok=0, int base=10) const;
507 float toFloat(bool *ok=0) const;
508 double toDouble(bool *ok=0) const;
510 QString &setNum(short, int base=10);
511 QString &setNum(ushort, int base=10);
512 QString &setNum(int, int base=10);
513 QString &setNum(uint, int base=10);
514 QString &setNum(long, int base=10);
515 QString &setNum(ulong, int base=10);
516 QString &setNum(qlonglong, int base=10);
517 QString &setNum(qulonglong, int base=10);
518 QString &setNum(float, char f='g', int prec=6);
519 QString &setNum(double, char f='g', int prec=6);
521 static QString number(int, int base=10);
522 static QString number(uint, int base=10);
523 static QString number(long, int base=10);
524 static QString number(ulong, int base=10);
525 static QString number(qlonglong, int base=10);
526 static QString number(qulonglong, int base=10);
527 static QString number(double, char f='g', int prec=6);
529 friend Q_CORE_EXPORT bool operator==(const QString &s1, const QString &s2);
530 friend Q_CORE_EXPORT bool operator<(const QString &s1, const QString &s2);
531 friend inline bool operator>(const QString &s1, const QString &s2) { return s2 < s1; }
532 friend inline bool operator!=(const QString &s1, const QString &s2) { return !(s1 == s2); }
533 friend inline bool operator<=(const QString &s1, const QString &s2) { return !(s1 > s2); }
534 friend inline bool operator>=(const QString &s1, const QString &s2) { return !(s1 < s2); }
536 bool operator==(const QLatin1String &s) const;
537 bool operator<(const QLatin1String &s) const;
538 bool operator>(const QLatin1String &s) const;
539 inline bool operator!=(const QLatin1String &s) const { return !operator==(s); }
540 inline bool operator<=(const QLatin1String &s) const { return !operator>(s); }
541 inline bool operator>=(const QLatin1String &s) const { return !operator<(s); }
543 // ASCII compatibility
544 #ifndef QT_NO_CAST_FROM_ASCII
545 inline QT_ASCII_CAST_WARN QString(const char *ch)
546 : d(fromAscii_helper(ch, ch ? int(strlen(ch)) : -1))
548 inline QT_ASCII_CAST_WARN QString(const QByteArray &a)
549 : d(fromAscii_helper(a.constData(), qstrnlen(a.constData(), a.size())))
551 inline QT_ASCII_CAST_WARN QString &operator=(const char *ch)
552 { return (*this = fromAscii(ch, ch ? int(strlen(ch)) : -1)); }
553 inline QT_ASCII_CAST_WARN QString &operator=(const QByteArray &a)
554 { return (*this = fromAscii(a.constData(), qstrnlen(a.constData(), a.size()))); }
555 inline QT_ASCII_CAST_WARN QString &operator=(char c)
556 { return (*this = QChar::fromAscii(c)); }
558 // these are needed, so it compiles with STL support enabled
559 inline QT_ASCII_CAST_WARN QString &prepend(const char *s)
560 { return prepend(QString::fromAscii(s, s ? int(strlen(s)) : -1)); }
561 inline QT_ASCII_CAST_WARN QString &prepend(const QByteArray &s)
562 { return prepend(QString::fromAscii(s.constData(), qstrnlen(s.constData(), s.size()))); }
563 inline QT_ASCII_CAST_WARN QString &append(const char *s)
564 { return append(QString::fromAscii(s, s ? int(strlen(s)) : -1)); }
565 inline QT_ASCII_CAST_WARN QString &append(const QByteArray &s)
566 { return append(QString::fromAscii(s.constData(), qstrnlen(s.constData(), s.size()))); }
567 inline QT_ASCII_CAST_WARN QString &operator+=(const char *s)
568 { return append(QString::fromAscii(s, s ? int(strlen(s)) : -1)); }
569 inline QT_ASCII_CAST_WARN QString &operator+=(const QByteArray &s)
570 { return append(QString::fromAscii(s.constData(), qstrnlen(s.constData(), s.size()))); }
571 inline QT_ASCII_CAST_WARN QString &operator+=(char c)
572 { return append(QChar::fromAscii(c)); }
574 inline QT_ASCII_CAST_WARN bool operator==(const char *s) const;
575 inline QT_ASCII_CAST_WARN bool operator!=(const char *s) const;
576 inline QT_ASCII_CAST_WARN bool operator<(const char *s) const;
577 inline QT_ASCII_CAST_WARN bool operator<=(const char *s2) const;
578 inline QT_ASCII_CAST_WARN bool operator>(const char *s2) const;
579 inline QT_ASCII_CAST_WARN bool operator>=(const char *s2) const;
581 inline QT_ASCII_CAST_WARN bool operator==(const QByteArray &s) const;
582 inline QT_ASCII_CAST_WARN bool operator!=(const QByteArray &s) const;
583 inline QT_ASCII_CAST_WARN bool operator<(const QByteArray &s) const
584 { return *this < QString::fromAscii(s.constData(), s.size()); }
585 inline QT_ASCII_CAST_WARN bool operator>(const QByteArray &s) const
586 { return *this > QString::fromAscii(s.constData(), s.size()); }
587 inline QT_ASCII_CAST_WARN bool operator<=(const QByteArray &s) const
588 { return *this <= QString::fromAscii(s.constData(), s.size()); }
589 inline QT_ASCII_CAST_WARN bool operator>=(const QByteArray &s) const
590 { return *this >= QString::fromAscii(s.constData(), s.size()); }
593 typedef QChar *iterator;
594 typedef const QChar *const_iterator;
595 typedef iterator Iterator;
596 typedef const_iterator ConstIterator;
598 const_iterator begin() const;
599 const_iterator cbegin() const;
600 const_iterator constBegin() const;
602 const_iterator end() const;
603 const_iterator cend() const;
604 const_iterator constEnd() const;
607 typedef const QChar & const_reference;
608 typedef QChar & reference;
609 typedef QChar value_type;
610 inline void push_back(QChar c) { append(c); }
611 inline void push_back(const QString &s) { append(s); }
612 inline void push_front(QChar c) { prepend(c); }
613 inline void push_front(const QString &s) { prepend(s); }
615 static inline QString fromStdString(const std::string &s);
616 inline std::string toStdString() const;
617 static inline QString fromStdWString(const std::wstring &s);
618 inline std::wstring toStdWString() const;
622 static const Null null;
623 inline QString(const Null &): d(shared_null.data_ptr()) {}
624 inline QString &operator=(const Null &) { *this = QString(); return *this; }
625 inline bool isNull() const { return d == &shared_null.str; }
628 bool isSimpleText() const;
629 bool isRightToLeft() const;
631 QString(int size, Qt::Initialization);
632 Q_DECL_CONSTEXPR inline QString(QStringDataPtr dd) : d(dd.ptr) {}
635 #if defined(QT_NO_CAST_FROM_ASCII) && !defined(Q_NO_DECLARED_NOT_DEFINED)
636 QString &operator+=(const char *s);
637 QString &operator+=(const QByteArray &s);
638 QString(const char *ch);
639 QString(const QByteArray &a);
640 QString &operator=(const char *ch);
641 QString &operator=(const QByteArray &a);
644 static const QStaticStringData<1> shared_null;
645 static const QStaticStringData<1> shared_empty;
648 static void free(Data *);
649 void reallocData(int alloc, bool grow = false);
651 void updateProperties() const;
652 QString multiArg(int numArgs, const QString **args) const;
653 static int compare_helper(const QChar *data1, int length1,
654 const QChar *data2, int length2,
655 Qt::CaseSensitivity cs = Qt::CaseSensitive);
656 static int compare_helper(const QChar *data1, int length1,
658 Qt::CaseSensitivity cs = Qt::CaseSensitive);
659 static int localeAwareCompare_helper(const QChar *data1, int length1,
660 const QChar *data2, int length2);
661 static Data *fromLatin1_helper(const char *str, int size = -1);
662 static Data *fromAscii_helper(const char *str, int size = -1);
663 static QString fromUtf8_helper(const char *str, int size);
664 static QString fromLocal8Bit_helper(const char *, int size);
665 static int toUcs4_helper(const ushort *uc, int length, uint *out);
666 void replace_helper(uint *indices, int nIndices, int blen, const QChar *after, int alen);
667 friend class QCharRef;
668 friend class QTextCodec;
669 friend class QStringRef;
670 friend struct QAbstractConcatenable;
671 friend inline bool qStringComparisonHelper(const QString &s1, const char *s2);
672 friend inline bool qStringComparisonHelper(const QStringRef &s1, const char *s2);
674 typedef Data * DataPtr;
675 inline DataPtr &data_ptr() { return d; }
682 Q_DECL_CONSTEXPR inline explicit QLatin1String(const char *s) : m_size(s ? int(strlen(s)) : 0), m_data(s) {}
683 Q_DECL_CONSTEXPR inline explicit QLatin1String(const char *s, int sz) : m_size(sz), m_data(s) {}
684 inline explicit QLatin1String(const QByteArray &s) : m_size(int(strlen(s.constData()))), m_data(s.constData()) {}
686 inline const char *latin1() const { return m_data; }
687 inline int size() const { return m_size; }
688 inline const char *data() const { return m_data; }
690 inline bool operator==(const QString &s) const
691 { return s == *this; }
692 inline bool operator!=(const QString &s) const
693 { return s != *this; }
694 inline bool operator>(const QString &s) const
695 { return s < *this; }
696 inline bool operator<(const QString &s) const
697 { return s > *this; }
698 inline bool operator>=(const QString &s) const
699 { return s <= *this; }
700 inline bool operator<=(const QString &s) const
701 { return s >= *this; }
703 inline QT_ASCII_CAST_WARN bool operator==(const char *s) const
704 { return QString::fromAscii(s, s ? int(strlen(s)) : -1) == *this; }
705 inline QT_ASCII_CAST_WARN bool operator!=(const char *s) const
706 { return QString::fromAscii(s, s ? int(strlen(s)) : -1) != *this; }
707 inline QT_ASCII_CAST_WARN bool operator<(const char *s) const
708 { return QString::fromAscii(s, s ? int(strlen(s)) : -1) > *this; }
709 inline QT_ASCII_CAST_WARN bool operator>(const char *s) const
710 { return QString::fromAscii(s, s ? int(strlen(s)) : -1) < *this; }
711 inline QT_ASCII_CAST_WARN bool operator<=(const char *s) const
712 { return QString::fromAscii(s, s ? int(strlen(s)) : -1) >= *this; }
713 inline QT_ASCII_CAST_WARN bool operator>=(const char *s) const
714 { return QString::fromAscii(s, s ? int(strlen(s)) : -1) <= *this; }
720 // Qt 4.x compatibility
721 typedef QLatin1String QLatin1Literal;
724 inline QString::QString(const QLatin1String &aLatin1) : d(fromLatin1_helper(aLatin1.latin1(), aLatin1.size()))
726 inline int QString::length() const
728 inline const QChar QString::at(int i) const
729 { Q_ASSERT(uint(i) < uint(size())); return d->data()[i]; }
730 inline const QChar QString::operator[](int i) const
731 { Q_ASSERT(uint(i) < uint(size())); return d->data()[i]; }
732 inline const QChar QString::operator[](uint i) const
733 { Q_ASSERT(i < uint(size())); return d->data()[i]; }
734 inline bool QString::isEmpty() const
735 { return d->size == 0; }
736 inline const QChar *QString::unicode() const
737 { return reinterpret_cast<const QChar*>(d->data()); }
738 inline const QChar *QString::data() const
739 { return reinterpret_cast<const QChar*>(d->data()); }
740 inline QChar *QString::data()
741 { detach(); return reinterpret_cast<QChar*>(d->data()); }
742 inline const QChar *QString::constData() const
743 { return reinterpret_cast<const QChar*>(d->data()); }
744 inline void QString::detach()
745 { if (d->ref.isShared() || (d->offset != sizeof(QStringData))) reallocData(d->size); }
746 inline bool QString::isDetached() const
747 { return !d->ref.isShared(); }
748 inline QString &QString::operator=(const QLatin1String &s)
750 *this = fromLatin1(s.latin1(), s.size());
753 inline void QString::clear()
754 { if (!isNull()) *this = QString(); }
755 inline QString::QString(const QString &other) : d(other.d)
756 { Q_ASSERT(&other != this); d->ref.ref(); }
757 inline int QString::capacity() const
759 inline QString &QString::setNum(short n, int base)
760 { return setNum(qlonglong(n), base); }
761 inline QString &QString::setNum(ushort n, int base)
762 { return setNum(qulonglong(n), base); }
763 inline QString &QString::setNum(int n, int base)
764 { return setNum(qlonglong(n), base); }
765 inline QString &QString::setNum(uint n, int base)
766 { return setNum(qulonglong(n), base); }
767 inline QString &QString::setNum(long n, int base)
768 { return setNum(qlonglong(n), base); }
769 inline QString &QString::setNum(ulong n, int base)
770 { return setNum(qulonglong(n), base); }
771 inline QString &QString::setNum(float n, char f, int prec)
772 { return setNum(double(n),f,prec); }
773 inline QString QString::arg(int a, int fieldWidth, int base, QChar fillChar) const
774 { return arg(qlonglong(a), fieldWidth, base, fillChar); }
775 inline QString QString::arg(uint a, int fieldWidth, int base, QChar fillChar) const
776 { return arg(qulonglong(a), fieldWidth, base, fillChar); }
777 inline QString QString::arg(long a, int fieldWidth, int base, QChar fillChar) const
778 { return arg(qlonglong(a), fieldWidth, base, fillChar); }
779 inline QString QString::arg(ulong a, int fieldWidth, int base, QChar fillChar) const
780 { return arg(qulonglong(a), fieldWidth, base, fillChar); }
781 inline QString QString::arg(short a, int fieldWidth, int base, QChar fillChar) const
782 { return arg(qlonglong(a), fieldWidth, base, fillChar); }
783 inline QString QString::arg(ushort a, int fieldWidth, int base, QChar fillChar) const
784 { return arg(qulonglong(a), fieldWidth, base, fillChar); }
785 inline QString QString::arg(const QString &a1, const QString &a2) const
786 { const QString *args[2] = { &a1, &a2 }; return multiArg(2, args); }
787 inline QString QString::arg(const QString &a1, const QString &a2, const QString &a3) const
788 { const QString *args[3] = { &a1, &a2, &a3 }; return multiArg(3, args); }
789 inline QString QString::arg(const QString &a1, const QString &a2, const QString &a3,
790 const QString &a4) const
791 { const QString *args[4] = { &a1, &a2, &a3, &a4 }; return multiArg(4, args); }
792 inline QString QString::arg(const QString &a1, const QString &a2, const QString &a3,
793 const QString &a4, const QString &a5) const
794 { const QString *args[5] = { &a1, &a2, &a3, &a4, &a5 }; return multiArg(5, args); }
795 inline QString QString::arg(const QString &a1, const QString &a2, const QString &a3,
796 const QString &a4, const QString &a5, const QString &a6) const
797 { const QString *args[6] = { &a1, &a2, &a3, &a4, &a5, &a6 }; return multiArg(6, args); }
798 inline QString QString::arg(const QString &a1, const QString &a2, const QString &a3,
799 const QString &a4, const QString &a5, const QString &a6,
800 const QString &a7) const
801 { const QString *args[7] = { &a1, &a2, &a3, &a4, &a5, &a6, &a7 }; return multiArg(7, args); }
802 inline QString QString::arg(const QString &a1, const QString &a2, const QString &a3,
803 const QString &a4, const QString &a5, const QString &a6,
804 const QString &a7, const QString &a8) const
805 { const QString *args[8] = { &a1, &a2, &a3, &a4, &a5, &a6, &a7, &a8 }; return multiArg(8, args); }
806 inline QString QString::arg(const QString &a1, const QString &a2, const QString &a3,
807 const QString &a4, const QString &a5, const QString &a6,
808 const QString &a7, const QString &a8, const QString &a9) const
809 { const QString *args[9] = { &a1, &a2, &a3, &a4, &a5, &a6, &a7, &a8, &a9 }; return multiArg(9, args); }
811 inline QString QString::section(QChar asep, int astart, int aend, SectionFlags aflags) const
812 { return section(QString(asep), astart, aend, aflags); }
814 inline int QString::toWCharArray(wchar_t *array) const
816 if (sizeof(wchar_t) == sizeof(QChar)) {
817 qMemCopy(array, d->data(), sizeof(QChar) * size());
820 return toUcs4_helper(d->data(), size(), reinterpret_cast<uint *>(array));
822 inline QString QString::fromWCharArray(const wchar_t *string, int size)
824 return sizeof(wchar_t) == sizeof(QChar) ? fromUtf16(reinterpret_cast<const ushort *>(string), size)
825 : fromUcs4(reinterpret_cast<const uint *>(string), size);
829 class Q_CORE_EXPORT QCharRef {
832 inline QCharRef(QString &str, int idx)
834 friend class QString;
837 // most QChar operations repeated here
839 // all this is not documented: We just say "like QChar" and let it be.
840 inline operator QChar() const
841 { return i < s.d->size ? s.d->data()[i] : 0; }
842 inline QCharRef &operator=(QChar c)
843 { if (i >= s.d->size) s.expand(i); else s.detach();
844 s.d->data()[i] = c.unicode(); return *this; }
846 // An operator= for each QChar cast constructors
847 #ifndef QT_NO_CAST_FROM_ASCII
848 inline QT_ASCII_CAST_WARN QCharRef &operator=(char c)
849 { return operator=(QChar::fromAscii(c)); }
850 inline QT_ASCII_CAST_WARN QCharRef &operator=(uchar c)
851 { return operator=(QChar::fromAscii(c)); }
853 inline QCharRef &operator=(const QCharRef &c) { return operator=(QChar(c)); }
854 inline QCharRef &operator=(ushort rc) { return operator=(QChar(rc)); }
855 inline QCharRef &operator=(short rc) { return operator=(QChar(rc)); }
856 inline QCharRef &operator=(uint rc) { return operator=(QChar(rc)); }
857 inline QCharRef &operator=(int rc) { return operator=(QChar(rc)); }
860 inline bool isNull() const { return QChar(*this).isNull(); }
861 inline bool isPrint() const { return QChar(*this).isPrint(); }
862 inline bool isPunct() const { return QChar(*this).isPunct(); }
863 inline bool isSpace() const { return QChar(*this).isSpace(); }
864 inline bool isMark() const { return QChar(*this).isMark(); }
865 inline bool isLetter() const { return QChar(*this).isLetter(); }
866 inline bool isNumber() const { return QChar(*this).isNumber(); }
867 inline bool isLetterOrNumber() { return QChar(*this).isLetterOrNumber(); }
868 inline bool isDigit() const { return QChar(*this).isDigit(); }
869 inline bool isLower() const { return QChar(*this).isLower(); }
870 inline bool isUpper() const { return QChar(*this).isUpper(); }
871 inline bool isTitleCase() const { return QChar(*this).isTitleCase(); }
873 inline int digitValue() const { return QChar(*this).digitValue(); }
874 QChar toLower() const { return QChar(*this).toLower(); }
875 QChar toUpper() const { return QChar(*this).toUpper(); }
876 QChar toTitleCase () const { return QChar(*this).toTitleCase(); }
878 QChar::Category category() const { return QChar(*this).category(); }
879 QChar::Direction direction() const { return QChar(*this).direction(); }
880 QChar::Joining joining() const { return QChar(*this).joining(); }
881 bool hasMirrored() const { return QChar(*this).hasMirrored(); }
882 QChar mirroredChar() const { return QChar(*this).mirroredChar(); }
883 QString decomposition() const { return QChar(*this).decomposition(); }
884 QChar::Decomposition decompositionTag() const { return QChar(*this).decompositionTag(); }
885 uchar combiningClass() const { return QChar(*this).combiningClass(); }
887 QChar::UnicodeVersion unicodeVersion() const { return QChar(*this).unicodeVersion(); }
889 inline uchar cell() const { return QChar(*this).cell(); }
890 inline uchar row() const { return QChar(*this).row(); }
891 inline void setCell(uchar cell);
892 inline void setRow(uchar row);
894 char toAscii() const { return QChar(*this).toAscii(); }
895 char toLatin1() const { return QChar(*this).toLatin1(); }
896 ushort unicode() const { return QChar(*this).unicode(); }
897 ushort& unicode() { return s.data()[i].unicode(); }
901 inline void QCharRef::setRow(uchar arow) { QChar(*this).setRow(arow); }
902 inline void QCharRef::setCell(uchar acell) { QChar(*this).setCell(acell); }
905 inline QString::QString() : d(shared_null.data_ptr()) {}
906 inline QString::~QString() { if (!d->ref.deref()) free(d); }
908 inline void QString::reserve(int asize)
910 if (d->ref.isShared() || asize > int(d->alloc))
913 if (!d->capacityReserved) {
914 // cannot set unconditionally, since d could be the shared_null/shared_empty (which is const)
915 d->capacityReserved = true;
919 inline void QString::squeeze()
921 if (d->ref.isShared() || d->size < int(d->alloc))
922 reallocData(d->size);
924 if (d->capacityReserved) {
925 // cannot set unconditionally, since d could be shared_null or
927 d->capacityReserved = false;
931 inline QString &QString::setUtf16(const ushort *autf16, int asize)
932 { return setUnicode(reinterpret_cast<const QChar *>(autf16), asize); }
933 inline QCharRef QString::operator[](int i)
934 { Q_ASSERT(i >= 0); return QCharRef(*this, i); }
935 inline QCharRef QString::operator[](uint i)
936 { return QCharRef(*this, i); }
937 inline QString::iterator QString::begin()
938 { detach(); return reinterpret_cast<QChar*>(d->data()); }
939 inline QString::const_iterator QString::begin() const
940 { return reinterpret_cast<const QChar*>(d->data()); }
941 inline QString::const_iterator QString::cbegin() const
942 { return reinterpret_cast<const QChar*>(d->data()); }
943 inline QString::const_iterator QString::constBegin() const
944 { return reinterpret_cast<const QChar*>(d->data()); }
945 inline QString::iterator QString::end()
946 { detach(); return reinterpret_cast<QChar*>(d->data() + d->size); }
947 inline QString::const_iterator QString::end() const
948 { return reinterpret_cast<const QChar*>(d->data() + d->size); }
949 inline QString::const_iterator QString::cend() const
950 { return reinterpret_cast<const QChar*>(d->data() + d->size); }
951 inline QString::const_iterator QString::constEnd() const
952 { return reinterpret_cast<const QChar*>(d->data() + d->size); }
953 inline bool QString::contains(const QString &s, Qt::CaseSensitivity cs) const
954 { return indexOf(s, 0, cs) != -1; }
955 inline bool QString::contains(const QStringRef &s, Qt::CaseSensitivity cs) const
956 { return indexOf(s, 0, cs) != -1; }
957 inline bool QString::contains(QChar c, Qt::CaseSensitivity cs) const
958 { return indexOf(c, 0, cs) != -1; }
961 inline bool operator==(QString::Null, QString::Null) { return true; }
962 inline bool operator==(QString::Null, const QString &s) { return s.isNull(); }
963 inline bool operator==(const QString &s, QString::Null) { return s.isNull(); }
964 inline bool operator!=(QString::Null, QString::Null) { return false; }
965 inline bool operator!=(QString::Null, const QString &s) { return !s.isNull(); }
966 inline bool operator!=(const QString &s, QString::Null) { return !s.isNull(); }
968 #ifndef QT_NO_CAST_FROM_ASCII
969 inline bool qStringComparisonHelper(const QString &s1, const char *s2)
971 return (s1 == QLatin1String(s2));
973 inline bool QString::operator==(const char *s) const
974 { return qStringComparisonHelper(*this, s); }
975 inline bool QString::operator!=(const char *s) const
976 { return !qStringComparisonHelper(*this, s); }
977 inline bool QString::operator<(const char *s) const
978 { return *this < QString::fromAscii(s, s ? int(strlen(s)) : -1); }
979 inline bool QString::operator>(const char *s) const
980 { return *this > QString::fromAscii(s, s ? int(strlen(s)) : -1); }
981 inline bool QString::operator<=(const char *s) const
982 { return *this <= QString::fromAscii(s, s ? int(strlen(s)) : -1); }
983 inline bool QString::operator>=(const char *s) const
984 { return *this >= QString::fromAscii(s, s ? int(strlen(s)) : -1); }
986 inline QT_ASCII_CAST_WARN bool operator==(const char *s1, const QString &s2)
987 { return qStringComparisonHelper(s2, s1); }
988 inline QT_ASCII_CAST_WARN bool operator!=(const char *s1, const QString &s2)
989 { return !qStringComparisonHelper(s2, s1); }
990 inline QT_ASCII_CAST_WARN bool operator<(const char *s1, const QString &s2)
991 { return (QString::fromAscii(s1, s1 ? int(strlen(s1)) : -1) < s2); }
992 inline QT_ASCII_CAST_WARN bool operator>(const char *s1, const QString &s2)
993 { return (QString::fromAscii(s1, s1 ? int(strlen(s1)) : -1) > s2); }
994 inline QT_ASCII_CAST_WARN bool operator<=(const char *s1, const QString &s2)
995 { return (QString::fromAscii(s1, s1 ? int(strlen(s1)) : -1) <= s2); }
996 inline QT_ASCII_CAST_WARN bool operator>=(const char *s1, const QString &s2)
997 { return (QString::fromAscii(s1, s1 ? int(strlen(s1)) : -1) >= s2); }
999 inline QT_ASCII_CAST_WARN bool operator==(const char *s1, const QLatin1String &s2)
1000 { return QString::fromAscii(s1, s1 ? int(strlen(s1)) : -1) == s2; }
1001 inline QT_ASCII_CAST_WARN bool operator!=(const char *s1, const QLatin1String &s2)
1002 { return QString::fromAscii(s1, s1 ? int(strlen(s1)) : -1) != s2; }
1003 inline QT_ASCII_CAST_WARN bool operator<(const char *s1, const QLatin1String &s2)
1004 { return (QString::fromAscii(s1, s1 ? int(strlen(s1)) : -1) < s2); }
1005 inline QT_ASCII_CAST_WARN bool operator>(const char *s1, const QLatin1String &s2)
1006 { return (QString::fromAscii(s1, s1 ? int(strlen(s1)) : -1) > s2); }
1007 inline QT_ASCII_CAST_WARN bool operator<=(const char *s1, const QLatin1String &s2)
1008 { return (QString::fromAscii(s1, s1 ? int(strlen(s1)) : -1) <= s2); }
1009 inline QT_ASCII_CAST_WARN bool operator>=(const char *s1, const QLatin1String &s2)
1010 { return (QString::fromAscii(s1, s1 ? int(strlen(s1)) : -1) >= s2); }
1012 inline bool operator==(const QLatin1String &s1, const QLatin1String &s2)
1013 { return (s1.size() == s2.size() && !memcmp(s1.latin1(), s2.latin1(), s1.size())); }
1014 inline bool operator!=(const QLatin1String &s1, const QLatin1String &s2)
1015 { return (s1.size() != s2.size() || memcmp(s1.latin1(), s2.latin1(), s1.size())); }
1016 inline bool operator<(const QLatin1String &s1, const QLatin1String &s2)
1017 { int r = memcmp(s1.latin1(), s2.latin1(), qMin(s1.size(), s2.size()));
1018 return (r < 0) || (r == 0 && s1.size() < s2.size()); }
1019 inline bool operator<=(const QLatin1String &s1, const QLatin1String &s2)
1020 { int r = memcmp(s1.latin1(), s2.latin1(), qMin(s1.size(), s2.size()));
1021 return (r < 0) || (r == 0 && s1.size() <= s2.size()); }
1022 inline bool operator>(const QLatin1String &s1, const QLatin1String &s2)
1023 { int r = memcmp(s1.latin1(), s2.latin1(), qMin(s1.size(), s2.size()));
1024 return (r > 0) || (r == 0 && s1.size() > s2.size()); }
1025 inline bool operator>=(const QLatin1String &s1, const QLatin1String &s2)
1026 { int r = memcmp(s1.latin1(), s2.latin1(), qMin(s1.size(), s2.size()));
1027 return (r > 0) || (r == 0 && s1.size() >= s2.size()); }
1030 inline bool QString::operator==(const QByteArray &s) const
1031 { return qStringComparisonHelper(*this, s.constData()); }
1032 inline bool QString::operator!=(const QByteArray &s) const
1033 { return !qStringComparisonHelper(*this, s.constData()); }
1035 inline bool QByteArray::operator==(const QString &s) const
1036 { return qStringComparisonHelper(s, constData()); }
1037 inline bool QByteArray::operator!=(const QString &s) const
1038 { return !qStringComparisonHelper(s, constData()); }
1039 inline bool QByteArray::operator<(const QString &s) const
1040 { return QString::fromAscii(constData(), size()) < s; }
1041 inline bool QByteArray::operator>(const QString &s) const
1042 { return QString::fromAscii(constData(), size()) > s; }
1043 inline bool QByteArray::operator<=(const QString &s) const
1044 { return QString::fromAscii(constData(), size()) <= s; }
1045 inline bool QByteArray::operator>=(const QString &s) const
1046 { return QString::fromAscii(constData(), size()) >= s; }
1047 #endif // QT_NO_CAST_FROM_ASCII
1049 #ifndef QT_NO_CAST_TO_ASCII
1050 inline QByteArray &QByteArray::append(const QString &s)
1051 { return append(s.toAscii()); }
1052 inline QByteArray &QByteArray::insert(int i, const QString &s)
1053 { return insert(i, s.toAscii()); }
1054 inline QByteArray &QByteArray::replace(char c, const QString &after)
1055 { return replace(c, after.toAscii()); }
1056 inline QByteArray &QByteArray::replace(const QString &before, const char *after)
1057 { return replace(before.toAscii(), after); }
1058 inline QByteArray &QByteArray::replace(const QString &before, const QByteArray &after)
1059 { return replace(before.toAscii(), after); }
1060 inline QByteArray &QByteArray::operator+=(const QString &s)
1061 { return operator+=(s.toAscii()); }
1062 inline int QByteArray::indexOf(const QString &s, int from) const
1063 { return indexOf(s.toAscii(), from); }
1064 inline int QByteArray::lastIndexOf(const QString &s, int from) const
1065 { return lastIndexOf(s.toAscii(), from); }
1066 #endif // QT_NO_CAST_TO_ASCII
1068 #if !defined(QT_USE_FAST_OPERATOR_PLUS) && !defined(QT_USE_QSTRINGBUILDER)
1069 inline const QString operator+(const QString &s1, const QString &s2)
1070 { QString t(s1); t += s2; return t; }
1071 inline const QString operator+(const QString &s1, QChar s2)
1072 { QString t(s1); t += s2; return t; }
1073 inline const QString operator+(QChar s1, const QString &s2)
1074 { QString t(s1); t += s2; return t; }
1075 # ifndef QT_NO_CAST_FROM_ASCII
1076 inline QT_ASCII_CAST_WARN const QString operator+(const QString &s1, const char *s2)
1077 { QString t(s1); t += QString::fromAscii(s2, s2 ? int(strlen(s2)) : -1); return t; }
1078 inline QT_ASCII_CAST_WARN const QString operator+(const char *s1, const QString &s2)
1079 { QString t = QString::fromAscii(s1, s1 ? int(strlen(s1)) : -1); t += s2; return t; }
1080 inline QT_ASCII_CAST_WARN const QString operator+(char c, const QString &s)
1081 { QString t = s; t.prepend(QChar::fromAscii(c)); return t; }
1082 inline QT_ASCII_CAST_WARN const QString operator+(const QString &s, char c)
1083 { QString t = s; t += QChar::fromAscii(c); return t; }
1084 inline QT_ASCII_CAST_WARN const QString operator+(const QByteArray &ba, const QString &s)
1085 { QString t = QString::fromAscii(ba.constData(), qstrnlen(ba.constData(), ba.size())); t += s; return t; }
1086 inline QT_ASCII_CAST_WARN const QString operator+(const QString &s, const QByteArray &ba)
1087 { QString t(s); t += QString::fromAscii(ba.constData(), qstrnlen(ba.constData(), ba.size())); return t; }
1088 # endif // QT_NO_CAST_FROM_ASCII
1089 #endif // QT_USE_QSTRINGBUILDER
1091 inline std::string QString::toStdString() const
1092 { const QByteArray asc = toAscii(); return std::string(asc.constData(), asc.length()); }
1094 inline QString QString::fromStdString(const std::string &s)
1095 { return fromAscii(s.data(), int(s.size())); }
1097 inline std::wstring QString::toStdWString() const
1100 str.resize(length());
1102 #if defined(_MSC_VER) && _MSC_VER >= 1400
1103 // VS2005 crashes if the string is empty
1108 str.resize(toWCharArray(&(*str.begin())));
1112 inline QString QString::fromStdWString(const std::wstring &s)
1113 { return fromWCharArray(s.data(), int(s.size())); }
1115 #if !defined(QT_NO_DATASTREAM) || (defined(QT_BOOTSTRAPPED) && !defined(QT_BUILD_QMAKE))
1116 Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QString &);
1117 Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QString &);
1120 Q_DECLARE_TYPEINFO(QString, Q_MOVABLE_TYPE);
1121 Q_DECLARE_SHARED(QString)
1122 Q_DECLARE_OPERATORS_FOR_FLAGS(QString::SectionFlags)
1125 class Q_CORE_EXPORT QStringRef {
1126 const QString *m_string;
1130 inline QStringRef():m_string(0), m_position(0), m_size(0){}
1131 inline QStringRef(const QString *string, int position, int size);
1132 inline QStringRef(const QString *string);
1133 inline QStringRef(const QStringRef &other)
1134 :m_string(other.m_string), m_position(other.m_position), m_size(other.m_size)
1137 inline ~QStringRef(){}
1138 inline const QString *string() const { return m_string; }
1139 inline int position() const { return m_position; }
1140 inline int size() const { return m_size; }
1141 inline int count() const { return m_size; }
1142 inline int length() const { return m_size; }
1144 inline QStringRef &operator=(const QStringRef &other) {
1145 m_string = other.m_string; m_position = other.m_position;
1146 m_size = other.m_size; return *this;
1149 int indexOf(const QString &str, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1150 int indexOf(QChar ch, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1151 int indexOf(QLatin1String str, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1152 int indexOf(const QStringRef &str, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1153 int lastIndexOf(const QString &str, int from = -1, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1154 int lastIndexOf(QChar ch, int from = -1, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1155 int lastIndexOf(QLatin1String str, int from = -1, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1156 int lastIndexOf(const QStringRef &str, int from = -1, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1158 inline bool contains(const QString &str, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1159 inline bool contains(QChar ch, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1160 inline bool contains(QLatin1String str, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1161 inline bool contains(const QStringRef &str, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1163 int count(const QString &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1164 int count(QChar c, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1165 int count(const QStringRef &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1167 bool startsWith(const QString &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1168 bool startsWith(QLatin1String s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1169 bool startsWith(QChar c, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1170 bool startsWith(const QStringRef &c, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1172 bool endsWith(const QString &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1173 bool endsWith(QLatin1String s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1174 bool endsWith(QChar c, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1175 bool endsWith(const QStringRef &c, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1177 inline QStringRef &operator=(const QString *string);
1179 inline const QChar *unicode() const {
1181 return reinterpret_cast<const QChar *>(QString::shared_null.str.data());
1182 return m_string->unicode() + m_position;
1184 inline const QChar *data() const { return unicode(); }
1185 inline const QChar *constData() const { return unicode(); }
1187 QByteArray toAscii() const Q_REQUIRED_RESULT;
1188 QByteArray toLatin1() const Q_REQUIRED_RESULT;
1189 QByteArray toUtf8() const Q_REQUIRED_RESULT;
1190 QByteArray toLocal8Bit() const Q_REQUIRED_RESULT;
1191 QVector<uint> toUcs4() const Q_REQUIRED_RESULT;
1193 inline void clear() { m_string = 0; m_position = m_size = 0; }
1194 QString toString() const;
1195 inline bool isEmpty() const { return m_size == 0; }
1196 inline bool isNull() const { return m_string == 0 || m_string->isNull(); }
1198 QStringRef appendTo(QString *string) const;
1200 inline const QChar at(int i) const
1201 { Q_ASSERT(i >= 0 && i < size()); return m_string->at(i + m_position); }
1203 int compare(const QString &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1204 int compare(const QStringRef &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1205 int compare(QLatin1String s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1206 static int compare(const QStringRef &s1, const QString &s2,
1207 Qt::CaseSensitivity = Qt::CaseSensitive);
1208 static int compare(const QStringRef &s1, const QStringRef &s2,
1209 Qt::CaseSensitivity = Qt::CaseSensitive);
1210 static int compare(const QStringRef &s1, QLatin1String s2,
1211 Qt::CaseSensitivity cs = Qt::CaseSensitive);
1213 int localeAwareCompare(const QString &s) const;
1214 int localeAwareCompare(const QStringRef &s) const;
1215 static int localeAwareCompare(const QStringRef &s1, const QString &s2);
1216 static int localeAwareCompare(const QStringRef &s1, const QStringRef &s2);
1219 inline QStringRef &QStringRef::operator=(const QString *aString)
1220 { m_string = aString; m_position = 0; m_size = aString?aString->size():0; return *this; }
1222 inline QStringRef::QStringRef(const QString *aString, int aPosition, int aSize)
1223 :m_string(aString), m_position(aPosition), m_size(aSize){}
1225 inline QStringRef::QStringRef(const QString *aString)
1226 :m_string(aString), m_position(0), m_size(aString?aString->size() : 0){}
1228 Q_CORE_EXPORT bool operator==(const QStringRef &s1,const QStringRef &s2);
1229 inline bool operator!=(const QStringRef &s1,const QStringRef &s2)
1230 { return !(s1 == s2); }
1231 Q_CORE_EXPORT bool operator==(const QString &s1,const QStringRef &s2);
1232 inline bool operator!=(const QString &s1,const QStringRef &s2)
1233 { return !(s1 == s2); }
1234 inline bool operator==(const QStringRef &s1,const QString &s2)
1235 { return s2 == s1; }
1236 inline bool operator!=(const QStringRef &s1,const QString &s2)
1237 { return s2 != s1; }
1238 Q_CORE_EXPORT bool operator==(const QLatin1String &s1, const QStringRef &s2);
1239 inline bool operator!=(const QLatin1String &s1,const QStringRef &s2)
1240 { return !(s1 == s2); }
1241 inline bool operator==(const QStringRef &s1,const QLatin1String &s2)
1242 { return s2 == s1; }
1243 inline bool operator!=(const QStringRef &s1,const QLatin1String &s2)
1244 { return s2 != s1; }
1246 Q_CORE_EXPORT bool operator<(const QStringRef &s1,const QStringRef &s2);
1247 inline bool operator>(const QStringRef &s1, const QStringRef &s2)
1249 inline bool operator<=(const QStringRef &s1, const QStringRef &s2)
1250 { return !(s1 > s2); }
1251 inline bool operator>=(const QStringRef &s1, const QStringRef &s2)
1252 { return !(s1 < s2); }
1254 inline bool qStringComparisonHelper(const QStringRef &s1, const char *s2)
1256 return (s1 == QLatin1String(s2));
1259 inline QT_ASCII_CAST_WARN bool operator==(const char *s1, const QStringRef &s2)
1260 { return qStringComparisonHelper(s2, s1); }
1261 inline QT_ASCII_CAST_WARN bool operator==(const QStringRef &s1, const char *s2)
1262 { return qStringComparisonHelper(s1, s2); }
1263 inline QT_ASCII_CAST_WARN bool operator!=(const char *s1, const QStringRef &s2)
1264 { return !qStringComparisonHelper(s2, s1); }
1265 inline QT_ASCII_CAST_WARN bool operator!=(const QStringRef &s1, const char *s2)
1266 { return !qStringComparisonHelper(s1, s2); }
1268 inline int QString::compare(const QStringRef &s, Qt::CaseSensitivity cs) const
1269 { return QString::compare_helper(constData(), length(), s.constData(), s.length(), cs); }
1270 inline int QString::compare(const QString &s1, const QStringRef &s2, Qt::CaseSensitivity cs)
1271 { return QString::compare_helper(s1.constData(), s1.length(), s2.constData(), s2.length(), cs); }
1272 inline int QStringRef::compare(const QString &s, Qt::CaseSensitivity cs) const
1273 { return QString::compare_helper(constData(), length(), s.constData(), s.length(), cs); }
1274 inline int QStringRef::compare(const QStringRef &s, Qt::CaseSensitivity cs) const
1275 { return QString::compare_helper(constData(), length(), s.constData(), s.length(), cs); }
1276 inline int QStringRef::compare(QLatin1String s, Qt::CaseSensitivity cs) const
1277 { return QString::compare_helper(constData(), length(), s, cs); }
1278 inline int QStringRef::compare(const QStringRef &s1, const QString &s2, Qt::CaseSensitivity cs)
1279 { return QString::compare_helper(s1.constData(), s1.length(), s2.constData(), s2.length(), cs); }
1280 inline int QStringRef::compare(const QStringRef &s1, const QStringRef &s2, Qt::CaseSensitivity cs)
1281 { return QString::compare_helper(s1.constData(), s1.length(), s2.constData(), s2.length(), cs); }
1282 inline int QStringRef::compare(const QStringRef &s1, QLatin1String s2, Qt::CaseSensitivity cs)
1283 { return QString::compare_helper(s1.constData(), s1.length(), s2, cs); }
1285 inline int QString::localeAwareCompare(const QStringRef &s) const
1286 { return localeAwareCompare_helper(constData(), length(), s.constData(), s.length()); }
1287 inline int QString::localeAwareCompare(const QString& s1, const QStringRef& s2)
1288 { return localeAwareCompare_helper(s1.constData(), s1.length(), s2.constData(), s2.length()); }
1289 inline int QStringRef::localeAwareCompare(const QString &s) const
1290 { return QString::localeAwareCompare_helper(constData(), length(), s.constData(), s.length()); }
1291 inline int QStringRef::localeAwareCompare(const QStringRef &s) const
1292 { return QString::localeAwareCompare_helper(constData(), length(), s.constData(), s.length()); }
1293 inline int QStringRef::localeAwareCompare(const QStringRef &s1, const QString &s2)
1294 { return QString::localeAwareCompare_helper(s1.constData(), s1.length(), s2.constData(), s2.length()); }
1295 inline int QStringRef::localeAwareCompare(const QStringRef &s1, const QStringRef &s2)
1296 { return QString::localeAwareCompare_helper(s1.constData(), s1.length(), s2.constData(), s2.length()); }
1298 inline bool QStringRef::contains(const QString &s, Qt::CaseSensitivity cs) const
1299 { return indexOf(s, 0, cs) != -1; }
1300 inline bool QStringRef::contains(QLatin1String s, Qt::CaseSensitivity cs) const
1301 { return indexOf(s, 0, cs) != -1; }
1302 inline bool QStringRef::contains(QChar c, Qt::CaseSensitivity cs) const
1303 { return indexOf(c, 0, cs) != -1; }
1304 inline bool QStringRef::contains(const QStringRef &s, Qt::CaseSensitivity cs) const
1305 { return indexOf(s, 0, cs) != -1; }
1308 #if QT_DEPRECATED_SINCE(5, 0)
1309 QT_DEPRECATED inline QString escape(const QString &plain) {
1310 return plain.toHtmlEscaped();
1319 #if defined(QT_USE_FAST_OPERATOR_PLUS) || defined(QT_USE_QSTRINGBUILDER)
1320 #include <QtCore/qstringbuilder.h>