1 /****************************************************************************
3 ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
4 ** All rights reserved.
5 ** Contact: Nokia Corporation (qt-info@nokia.com)
7 ** This file is part of the QtCore module of the Qt Toolkit.
9 ** $QT_BEGIN_LICENSE:LGPL$
10 ** GNU Lesser General Public License Usage
11 ** This file may be used under the terms of the GNU Lesser General Public
12 ** License version 2.1 as published by the Free Software Foundation and
13 ** appearing in the file LICENSE.LGPL included in the packaging of this
14 ** file. Please review the following information to ensure the GNU Lesser
15 ** General Public License version 2.1 requirements will be met:
16 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
18 ** In addition, as a special exception, Nokia gives you certain additional
19 ** rights. These rights are described in the Nokia Qt LGPL Exception
20 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
22 ** GNU General Public License Usage
23 ** Alternatively, this file may be used under the terms of the GNU General
24 ** Public License version 3.0 as published by the Free Software Foundation
25 ** and appearing in the file LICENSE.GPL included in the packaging of this
26 ** file. Please review the following information to ensure the GNU General
27 ** Public License version 3.0 requirements will be met:
28 ** http://www.gnu.org/copyleft/gpl.html.
31 ** Alternatively, this file may be used in accordance with the terms and
32 ** 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>
53 # ifndef QT_NO_STL_WCHAR
54 // workaround for some headers not typedef'ing std::wstring
55 typedef std::basic_string<wchar_t> QStdWString;
56 # endif // QT_NO_STL_WCHAR
63 #error qstring.h must be included before any header file that defines truncate
78 template <typename T> class QVector;
81 QtPrivate::RefCount ref;
84 uint capacityReserved : 1;
86 qptrdiff offset; // will always work as we add/subtract from a ushort ptr
87 ushort d[sizeof(qptrdiff)/sizeof(ushort)];
89 inline ushort *data() { return d + sizeof(qptrdiff)/sizeof(ushort) + offset; }
90 inline const ushort *data() const { return d + sizeof(qptrdiff)/sizeof(ushort) + offset; }
93 template<int N> struct QConstStringData;
94 template<int N> struct QConstStringDataPtr
96 const QConstStringData<N> *ptr;
99 #if defined(Q_COMPILER_UNICODE_STRINGS)
100 template<int N> struct QConstStringData
102 const QStringData str;
103 const char16_t data[N + 1];
106 #define QT_UNICODE_LITERAL_II(str) u"" str
108 #elif defined(Q_OS_WIN) || (defined(__SIZEOF_WCHAR_T__) && __SIZEOF_WCHAR_T__ == 2) || defined(WCHAR_MAX) && (WCHAR_MAX - 0 < 65536)
109 // wchar_t is 2 bytes
110 template<int N> struct QConstStringData
112 const QStringData str;
113 const wchar_t data[N + 1];
116 #if defined(Q_CC_MSVC)
117 # define QT_UNICODE_LITERAL_II(str) L##str
119 # define QT_UNICODE_LITERAL_II(str) L"" str
123 template<int N> struct QConstStringData
125 const QStringData str;
126 const ushort data[N + 1];
130 #if defined(QT_UNICODE_LITERAL_II)
131 # define QT_UNICODE_LITERAL(str) QT_UNICODE_LITERAL_II(str)
132 # if defined(Q_COMPILER_LAMBDA)
133 # define QStringLiteral(str) ([]() -> QConstStringDataPtr<sizeof(QT_UNICODE_LITERAL(str))/2 - 1> { \
134 enum { Size = sizeof(QT_UNICODE_LITERAL(str))/2 - 1 }; \
135 static const QConstStringData<Size> qstring_literal = \
136 { { Q_REFCOUNT_INITIALIZER(-1), Size, 0, 0, { 0 } }, QT_UNICODE_LITERAL(str) }; \
137 QConstStringDataPtr<Size> holder = { &qstring_literal }; \
140 # elif defined(Q_CC_GNU)
141 // We need to create a QStringData in the .rodata section of memory
142 // and the only way to do that is to create a "static const" variable.
143 // To do that, we need the __extension__ {( )} trick which only GCC supports
145 # define QStringLiteral(str) \
147 enum { Size = sizeof(QT_UNICODE_LITERAL(str))/2 - 1 }; \
148 static const QConstStringData<Size> qstring_literal = \
149 { { Q_REFCOUNT_INITIALIZER(-1), Size, 0, 0, { 0 } }, QT_UNICODE_LITERAL(str) }; \
150 QConstStringDataPtr<Size> holder = { &qstring_literal }; \
155 #ifndef QStringLiteral
156 // no lambdas, not GCC, or GCC in C++98 mode with 4-byte wchar_t
157 // fallback, uses QLatin1String as next best options
159 # define QStringLiteral(str) QLatin1String(str)
162 class Q_CORE_EXPORT QString
165 typedef QStringData Data;
168 QString(const QChar *unicode, int size); // Qt5: don't cap size < 0
169 explicit QString(const QChar *unicode); // Qt5: merge with the above
171 QString(int size, QChar c);
172 inline QString(const QLatin1String &latin1);
173 inline QString(const QString &);
175 QString &operator=(QChar c);
176 QString &operator=(const QString &);
177 inline QString &operator=(const QLatin1String &);
178 #ifdef Q_COMPILER_RVALUE_REFS
179 inline QString &operator=(QString &&other)
180 { qSwap(d, other.d); return *this; }
182 inline void swap(QString &other) { qSwap(d, other.d); }
183 inline int size() const { return d->size; }
184 inline int count() const { return d->size; }
185 inline int length() const;
186 inline bool isEmpty() const;
187 void resize(int size);
189 QString &fill(QChar c, int size = -1);
190 void truncate(int pos);
193 int capacity() const;
194 inline void reserve(int size);
195 inline void squeeze();
197 inline const QChar *unicode() const;
198 inline QChar *data();
199 inline const QChar *data() const;
200 inline const QChar *constData() const;
202 inline void detach();
203 inline bool isDetached() const;
204 inline bool isSharedWith(const QString &other) const { return d == other.d; }
207 inline const QChar at(int i) const;
208 const QChar operator[](int i) const;
209 QCharRef operator[](int i);
210 const QChar operator[](uint i) const;
211 QCharRef operator[](uint i);
213 QString arg(qlonglong a, int fieldwidth=0, int base=10,
214 QChar fillChar = QLatin1Char(' ')) const Q_REQUIRED_RESULT;
215 QString arg(qulonglong a, int fieldwidth=0, int base=10,
216 QChar fillChar = QLatin1Char(' ')) const Q_REQUIRED_RESULT;
217 QString arg(long a, int fieldwidth=0, int base=10,
218 QChar fillChar = QLatin1Char(' ')) const Q_REQUIRED_RESULT;
219 QString arg(ulong a, int fieldwidth=0, int base=10,
220 QChar fillChar = QLatin1Char(' ')) const Q_REQUIRED_RESULT;
221 QString arg(int a, int fieldWidth = 0, int base = 10,
222 QChar fillChar = QLatin1Char(' ')) const Q_REQUIRED_RESULT;
223 QString arg(uint a, int fieldWidth = 0, int base = 10,
224 QChar fillChar = QLatin1Char(' ')) const Q_REQUIRED_RESULT;
225 QString arg(short a, int fieldWidth = 0, int base = 10,
226 QChar fillChar = QLatin1Char(' ')) const Q_REQUIRED_RESULT;
227 QString arg(ushort a, int fieldWidth = 0, int base = 10,
228 QChar fillChar = QLatin1Char(' ')) const Q_REQUIRED_RESULT;
229 QString arg(double a, int fieldWidth = 0, char fmt = 'g', int prec = -1,
230 QChar fillChar = QLatin1Char(' ')) const Q_REQUIRED_RESULT;
231 QString arg(char a, int fieldWidth = 0,
232 QChar fillChar = QLatin1Char(' ')) const Q_REQUIRED_RESULT;
233 QString arg(QChar a, int fieldWidth = 0,
234 QChar fillChar = QLatin1Char(' ')) const Q_REQUIRED_RESULT;
235 QString arg(const QString &a, int fieldWidth = 0,
236 QChar fillChar = QLatin1Char(' ')) const Q_REQUIRED_RESULT;
237 QString arg(const QString &a1, const QString &a2) const Q_REQUIRED_RESULT;
238 QString arg(const QString &a1, const QString &a2, const QString &a3) const Q_REQUIRED_RESULT;
239 QString arg(const QString &a1, const QString &a2, const QString &a3,
240 const QString &a4) const Q_REQUIRED_RESULT;
241 QString arg(const QString &a1, const QString &a2, const QString &a3,
242 const QString &a4, const QString &a5) const Q_REQUIRED_RESULT;
243 QString arg(const QString &a1, const QString &a2, const QString &a3,
244 const QString &a4, const QString &a5, const QString &a6) const Q_REQUIRED_RESULT;
245 QString arg(const QString &a1, const QString &a2, const QString &a3,
246 const QString &a4, const QString &a5, const QString &a6,
247 const QString &a7) const Q_REQUIRED_RESULT;
248 QString arg(const QString &a1, const QString &a2, const QString &a3,
249 const QString &a4, const QString &a5, const QString &a6,
250 const QString &a7, const QString &a8) const Q_REQUIRED_RESULT;
251 QString arg(const QString &a1, const QString &a2, const QString &a3,
252 const QString &a4, const QString &a5, const QString &a6,
253 const QString &a7, const QString &a8, const QString &a9) const Q_REQUIRED_RESULT;
255 QString &vsprintf(const char *format, va_list ap)
256 #if defined(Q_CC_GNU) && !defined(__INSURE__)
257 __attribute__ ((format (printf, 2, 0)))
260 QString &sprintf(const char *format, ...)
261 #if defined(Q_CC_GNU) && !defined(__INSURE__)
262 __attribute__ ((format (printf, 2, 3)))
266 int indexOf(QChar c, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
267 int indexOf(const QString &s, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
268 int indexOf(const QLatin1String &s, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
269 int indexOf(const QStringRef &s, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
270 int lastIndexOf(QChar c, int from = -1, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
271 int lastIndexOf(const QString &s, int from = -1, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
272 int lastIndexOf(const QLatin1String &s, int from = -1, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
273 int lastIndexOf(const QStringRef &s, int from = -1, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
275 inline QBool contains(QChar c, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
276 inline QBool contains(const QString &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
277 inline QBool contains(const QStringRef &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
278 int count(QChar c, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
279 int count(const QString &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
280 int count(const QStringRef &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
283 int indexOf(const QRegExp &, int from = 0) const;
284 int lastIndexOf(const QRegExp &, int from = -1) const;
285 inline QBool contains(const QRegExp &rx) const { return QBool(indexOf(rx) != -1); }
286 int count(const QRegExp &) const;
288 int indexOf(QRegExp &, int from = 0) const;
289 int lastIndexOf(QRegExp &, int from = -1) const;
290 inline QBool contains(QRegExp &rx) const { return QBool(indexOf(rx) != -1); }
294 SectionDefault = 0x00,
295 SectionSkipEmpty = 0x01,
296 SectionIncludeLeadingSep = 0x02,
297 SectionIncludeTrailingSep = 0x04,
298 SectionCaseInsensitiveSeps = 0x08
300 Q_DECLARE_FLAGS(SectionFlags, SectionFlag)
302 QString section(QChar sep, int start, int end = -1, SectionFlags flags = SectionDefault) const;
303 QString section(const QString &in_sep, int start, int end = -1, SectionFlags flags = SectionDefault) const;
305 QString section(const QRegExp ®, int start, int end = -1, SectionFlags flags = SectionDefault) const;
308 QString left(int n) const Q_REQUIRED_RESULT;
309 QString right(int n) const Q_REQUIRED_RESULT;
310 QString mid(int position, int n = -1) const Q_REQUIRED_RESULT;
311 QStringRef leftRef(int n) const Q_REQUIRED_RESULT;
312 QStringRef rightRef(int n) const Q_REQUIRED_RESULT;
313 QStringRef midRef(int position, int n = -1) const Q_REQUIRED_RESULT;
315 bool startsWith(const QString &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
316 bool startsWith(const QStringRef &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
317 bool startsWith(const QLatin1String &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
318 bool startsWith(QChar c, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
319 bool endsWith(const QString &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
320 bool endsWith(const QStringRef &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
321 bool endsWith(const QLatin1String &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
322 bool endsWith(QChar c, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
324 QString leftJustified(int width, QChar fill = QLatin1Char(' '), bool trunc = false) const Q_REQUIRED_RESULT;
325 QString rightJustified(int width, QChar fill = QLatin1Char(' '), bool trunc = false) const Q_REQUIRED_RESULT;
327 QString toLower() const Q_REQUIRED_RESULT;
328 QString toUpper() const Q_REQUIRED_RESULT;
329 QString toCaseFolded() const Q_REQUIRED_RESULT;
331 QString trimmed() const Q_REQUIRED_RESULT;
332 QString simplified() const Q_REQUIRED_RESULT;
333 QString toHtmlEscaped() const Q_REQUIRED_RESULT;
335 QString &insert(int i, QChar c);
336 QString &insert(int i, const QChar *uc, int len);
337 inline QString &insert(int i, const QString &s) { return insert(i, s.constData(), s.length()); }
338 QString &insert(int i, const QLatin1String &s);
339 QString &append(QChar c);
340 QString &append(const QString &s);
341 QString &append(const QStringRef &s);
342 QString &append(const QLatin1String &s);
343 inline QString &prepend(QChar c) { return insert(0, c); }
344 inline QString &prepend(const QString &s) { return insert(0, s); }
345 inline QString &prepend(const QLatin1String &s) { return insert(0, s); }
347 inline QString &operator+=(QChar c) {
348 if (d->ref != 1 || d->size + 1 > int(d->alloc))
349 realloc(grow(d->size + 1));
350 d->data()[d->size++] = c.unicode();
351 d->data()[d->size] = '\0';
355 inline QString &operator+=(QChar::SpecialCharacter c) { return append(QChar(c)); }
356 inline QString &operator+=(const QString &s) { return append(s); }
357 inline QString &operator+=(const QStringRef &s) { return append(s); }
358 inline QString &operator+=(const QLatin1String &s) { return append(s); }
360 QString &remove(int i, int len);
361 QString &remove(QChar c, Qt::CaseSensitivity cs = Qt::CaseSensitive);
362 QString &remove(const QString &s, Qt::CaseSensitivity cs = Qt::CaseSensitive);
363 QString &replace(int i, int len, QChar after);
364 QString &replace(int i, int len, const QChar *s, int slen);
365 QString &replace(int i, int len, const QString &after);
366 QString &replace(QChar before, QChar after, Qt::CaseSensitivity cs = Qt::CaseSensitive);
367 QString &replace(const QChar *before, int blen, const QChar *after, int alen, Qt::CaseSensitivity cs = Qt::CaseSensitive);
368 QString &replace(const QLatin1String &before, const QLatin1String &after, Qt::CaseSensitivity cs = Qt::CaseSensitive);
369 QString &replace(const QLatin1String &before, const QString &after, Qt::CaseSensitivity cs = Qt::CaseSensitive);
370 QString &replace(const QString &before, const QLatin1String &after, Qt::CaseSensitivity cs = Qt::CaseSensitive);
371 QString &replace(const QString &before, const QString &after,
372 Qt::CaseSensitivity cs = Qt::CaseSensitive);
373 QString &replace(QChar c, const QString &after, Qt::CaseSensitivity cs = Qt::CaseSensitive);
374 QString &replace(QChar c, const QLatin1String &after, Qt::CaseSensitivity cs = Qt::CaseSensitive);
376 QString &replace(const QRegExp &rx, const QString &after);
377 inline QString &remove(const QRegExp &rx)
378 { return replace(rx, QString()); }
381 enum SplitBehavior { KeepEmptyParts, SkipEmptyParts };
383 QStringList split(const QString &sep, SplitBehavior behavior = KeepEmptyParts,
384 Qt::CaseSensitivity cs = Qt::CaseSensitive) const Q_REQUIRED_RESULT;
385 QStringList split(QChar sep, SplitBehavior behavior = KeepEmptyParts,
386 Qt::CaseSensitivity cs = Qt::CaseSensitive) const Q_REQUIRED_RESULT;
388 QStringList split(const QRegExp &sep, SplitBehavior behavior = KeepEmptyParts) const Q_REQUIRED_RESULT;
391 enum NormalizationForm {
394 NormalizationForm_KD,
397 QString normalized(NormalizationForm mode) const Q_REQUIRED_RESULT;
398 QString normalized(NormalizationForm mode, QChar::UnicodeVersion version) const Q_REQUIRED_RESULT;
400 QString repeated(int times) const;
402 const ushort *utf16() const;
404 QByteArray toAscii() const Q_REQUIRED_RESULT;
405 QByteArray toLatin1() const Q_REQUIRED_RESULT;
406 QByteArray toUtf8() const Q_REQUIRED_RESULT;
407 QByteArray toLocal8Bit() const Q_REQUIRED_RESULT;
408 QVector<uint> toUcs4() const Q_REQUIRED_RESULT;
410 static QString fromAscii(const char *, int size = -1);
411 static QString fromLatin1(const char *, int size = -1);
412 static QString fromUtf8(const char *, int size = -1);
413 static QString fromLocal8Bit(const char *, int size = -1);
414 static QString fromUtf16(const ushort *, int size = -1);
415 static QString fromUcs4(const uint *, int size = -1);
416 static QString fromRawData(const QChar *, int size);
418 inline int toWCharArray(wchar_t *array) const;
419 static inline QString fromWCharArray(const wchar_t *string, int size = -1) Q_REQUIRED_RESULT;
421 QString &setRawData(const QChar *unicode, int size);
422 QString &setUnicode(const QChar *unicode, int size);
423 inline QString &setUtf16(const ushort *utf16, int size);
425 int compare(const QString &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
426 int compare(const QLatin1String &other, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
428 static inline int compare(const QString &s1, const QString &s2, Qt::CaseSensitivity cs = Qt::CaseSensitive)
429 { return s1.compare(s2, cs); }
431 static inline int compare(const QString& s1, const QLatin1String &s2,
432 Qt::CaseSensitivity cs = Qt::CaseSensitive)
433 { return s1.compare(s2, cs); }
434 static inline int compare(const QLatin1String& s1, const QString &s2,
435 Qt::CaseSensitivity cs = Qt::CaseSensitive)
436 { return -s2.compare(s1, cs); }
438 int compare(const QStringRef &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
439 static int compare(const QString &s1, const QStringRef &s2,
440 Qt::CaseSensitivity = Qt::CaseSensitive);
442 int localeAwareCompare(const QString& s) const;
443 static int localeAwareCompare(const QString& s1, const QString& s2)
444 { return s1.localeAwareCompare(s2); }
446 int localeAwareCompare(const QStringRef &s) const;
447 static int localeAwareCompare(const QString& s1, const QStringRef& s2);
449 short toShort(bool *ok=0, int base=10) const;
450 ushort toUShort(bool *ok=0, int base=10) const;
451 int toInt(bool *ok=0, int base=10) const;
452 uint toUInt(bool *ok=0, int base=10) const;
453 long toLong(bool *ok=0, int base=10) const;
454 ulong toULong(bool *ok=0, int base=10) const;
455 qlonglong toLongLong(bool *ok=0, int base=10) const;
456 qulonglong toULongLong(bool *ok=0, int base=10) const;
457 float toFloat(bool *ok=0) const;
458 double toDouble(bool *ok=0) const;
460 QString &setNum(short, int base=10);
461 QString &setNum(ushort, int base=10);
462 QString &setNum(int, int base=10);
463 QString &setNum(uint, int base=10);
464 QString &setNum(long, int base=10);
465 QString &setNum(ulong, int base=10);
466 QString &setNum(qlonglong, int base=10);
467 QString &setNum(qulonglong, int base=10);
468 QString &setNum(float, char f='g', int prec=6);
469 QString &setNum(double, char f='g', int prec=6);
471 static QString number(int, int base=10);
472 static QString number(uint, int base=10);
473 static QString number(long, int base=10);
474 static QString number(ulong, int base=10);
475 static QString number(qlonglong, int base=10);
476 static QString number(qulonglong, int base=10);
477 static QString number(double, char f='g', int prec=6);
479 bool operator==(const QString &s) const;
480 bool operator<(const QString &s) const;
481 inline bool operator>(const QString &s) const { return s < *this; }
482 inline bool operator!=(const QString &s) const { return !operator==(s); }
483 inline bool operator<=(const QString &s) const { return !operator>(s); }
484 inline bool operator>=(const QString &s) const { return !operator<(s); }
486 bool operator==(const QLatin1String &s) const;
487 bool operator<(const QLatin1String &s) const;
488 bool operator>(const QLatin1String &s) const;
489 inline bool operator!=(const QLatin1String &s) const { return !operator==(s); }
490 inline bool operator<=(const QLatin1String &s) const { return !operator>(s); }
491 inline bool operator>=(const QLatin1String &s) const { return !operator<(s); }
493 // ASCII compatibility
494 #ifndef QT_NO_CAST_FROM_ASCII
495 inline QT_ASCII_CAST_WARN_CONSTRUCTOR QString(const char *ch) : d(fromAscii_helper(ch))
497 inline QT_ASCII_CAST_WARN_CONSTRUCTOR QString(const QByteArray &a)
498 : d(fromAscii_helper(a.constData(), qstrnlen(a.constData(), a.size())))
500 inline QT_ASCII_CAST_WARN QString &operator=(const char *ch)
501 { return (*this = fromAscii(ch)); }
502 inline QT_ASCII_CAST_WARN QString &operator=(const QByteArray &a)
503 { return (*this = fromAscii(a.constData(), qstrnlen(a.constData(), a.size()))); }
504 inline QT_ASCII_CAST_WARN QString &operator=(char c)
505 { return (*this = QChar::fromAscii(c)); }
507 // these are needed, so it compiles with STL support enabled
508 inline QT_ASCII_CAST_WARN QString &prepend(const char *s)
509 { return prepend(QString::fromAscii(s)); }
510 inline QT_ASCII_CAST_WARN QString &prepend(const QByteArray &s)
511 { return prepend(QString::fromAscii(s.constData(), qstrnlen(s.constData(), s.size()))); }
512 inline QT_ASCII_CAST_WARN QString &append(const char *s)
513 { return append(QString::fromAscii(s)); }
514 inline QT_ASCII_CAST_WARN QString &append(const QByteArray &s)
515 { return append(QString::fromAscii(s.constData(), qstrnlen(s.constData(), s.size()))); }
516 inline QT_ASCII_CAST_WARN QString &operator+=(const char *s)
517 { return append(QString::fromAscii(s)); }
518 inline QT_ASCII_CAST_WARN QString &operator+=(const QByteArray &s)
519 { return append(QString::fromAscii(s.constData(), qstrnlen(s.constData(), s.size()))); }
520 inline QT_ASCII_CAST_WARN QString &operator+=(char c)
521 { return append(QChar::fromAscii(c)); }
523 inline QT_ASCII_CAST_WARN bool operator==(const char *s) const;
524 inline QT_ASCII_CAST_WARN bool operator!=(const char *s) const;
525 inline QT_ASCII_CAST_WARN bool operator<(const char *s) const;
526 inline QT_ASCII_CAST_WARN bool operator<=(const char *s2) const;
527 inline QT_ASCII_CAST_WARN bool operator>(const char *s2) const;
528 inline QT_ASCII_CAST_WARN bool operator>=(const char *s2) const;
530 inline QT_ASCII_CAST_WARN bool operator==(const QByteArray &s) const;
531 inline QT_ASCII_CAST_WARN bool operator!=(const QByteArray &s) const;
532 inline QT_ASCII_CAST_WARN bool operator<(const QByteArray &s) const
533 { return *this < QString::fromAscii(s.constData(), s.size()); }
534 inline QT_ASCII_CAST_WARN bool operator>(const QByteArray &s) const
535 { return *this > QString::fromAscii(s.constData(), s.size()); }
536 inline QT_ASCII_CAST_WARN bool operator<=(const QByteArray &s) const
537 { return *this <= QString::fromAscii(s.constData(), s.size()); }
538 inline QT_ASCII_CAST_WARN bool operator>=(const QByteArray &s) const
539 { return *this >= QString::fromAscii(s.constData(), s.size()); }
542 typedef QChar *iterator;
543 typedef const QChar *const_iterator;
544 typedef iterator Iterator;
545 typedef const_iterator ConstIterator;
547 const_iterator begin() const;
548 const_iterator constBegin() const;
550 const_iterator end() const;
551 const_iterator constEnd() const;
554 typedef const QChar & const_reference;
555 typedef QChar & reference;
556 typedef QChar value_type;
557 inline void push_back(QChar c) { append(c); }
558 inline void push_back(const QString &s) { append(s); }
559 inline void push_front(QChar c) { prepend(c); }
560 inline void push_front(const QString &s) { prepend(s); }
563 static inline QString fromStdString(const std::string &s);
564 inline std::string toStdString() const;
566 static inline QString fromStdWString(const std::wstring &s);
567 inline std::wstring toStdWString() const;
569 # ifndef QT_NO_STL_WCHAR
570 static inline QString fromStdWString(const QStdWString &s);
571 inline QStdWString toStdWString() const;
572 # endif // QT_NO_STL_WCHAR
578 static const Null null;
579 inline QString(const Null &): d(const_cast<Data *>(&shared_null.str)) {}
580 inline QString &operator=(const Null &) { *this = QString(); return *this; }
581 inline bool isNull() const { return d == &shared_null.str; }
584 bool isSimpleText() const;
585 bool isRightToLeft() const;
587 QString(int size, Qt::Initialization);
589 inline QString(const QConstStringData<n> &dd) : d(const_cast<QStringData *>(&dd.str)) {}
591 Q_DECL_CONSTEXPR inline QString(QConstStringDataPtr<N> dd) : d(const_cast<QStringData *>(&dd.ptr->str)) {}
594 #if defined(QT_NO_CAST_FROM_ASCII) && !defined(Q_NO_DECLARED_NOT_DEFINED)
595 QString &operator+=(const char *s);
596 QString &operator+=(const QByteArray &s);
597 QString(const char *ch);
598 QString(const QByteArray &a);
599 QString &operator=(const char *ch);
600 QString &operator=(const QByteArray &a);
603 static const QConstStringData<1> shared_null;
604 static const QConstStringData<1> shared_empty;
606 inline QString(Data *dd, int /*dummy*/) : d(dd) {}
608 #ifndef QT_NO_TEXTCODEC
609 static QTextCodec *codecForCStrings;
611 static int grow(int);
612 static void free(Data *);
614 void realloc(int alloc);
616 void updateProperties() const;
617 QString multiArg(int numArgs, const QString **args) const;
618 static int compare_helper(const QChar *data1, int length1,
619 const QChar *data2, int length2,
620 Qt::CaseSensitivity cs = Qt::CaseSensitive);
621 static int compare_helper(const QChar *data1, int length1,
623 Qt::CaseSensitivity cs = Qt::CaseSensitive);
624 static int localeAwareCompare_helper(const QChar *data1, int length1,
625 const QChar *data2, int length2);
626 static Data *fromLatin1_helper(const char *str, int size = -1);
627 static Data *fromAscii_helper(const char *str, int size = -1);
628 static int toUcs4_helper(const ushort *uc, int length, uint *out);
629 void replace_helper(uint *indices, int nIndices, int blen, const QChar *after, int alen);
630 friend class QCharRef;
631 friend class QTextCodec;
632 friend class QStringRef;
633 friend struct QAbstractConcatenable;
634 friend inline bool qStringComparisonHelper(const QString &s1, const char *s2);
635 friend inline bool qStringComparisonHelper(const QStringRef &s1, const char *s2);
637 typedef Data * DataPtr;
638 inline DataPtr &data_ptr() { return d; }
645 Q_DECL_CONSTEXPR inline explicit QLatin1String(const char *s) : m_size(s ? int(strlen(s)) : 0), m_data(s) {}
647 inline const char *latin1() const { return m_data; }
648 inline int size() const { return m_size; }
649 inline const char *data() const { return m_data; }
651 inline bool operator==(const QString &s) const
652 { return s == *this; }
653 inline bool operator!=(const QString &s) const
654 { return s != *this; }
655 inline bool operator>(const QString &s) const
656 { return s < *this; }
657 inline bool operator<(const QString &s) const
658 { return s > *this; }
659 inline bool operator>=(const QString &s) const
660 { return s <= *this; }
661 inline bool operator<=(const QString &s) const
662 { return s >= *this; }
664 inline QT_ASCII_CAST_WARN bool operator==(const char *s) const
665 { return QString::fromAscii(s) == *this; }
666 inline QT_ASCII_CAST_WARN bool operator!=(const char *s) const
667 { return QString::fromAscii(s) != *this; }
668 inline QT_ASCII_CAST_WARN bool operator<(const char *s) const
669 { return QString::fromAscii(s) > *this; }
670 inline QT_ASCII_CAST_WARN bool operator>(const char *s) const
671 { return QString::fromAscii(s) < *this; }
672 inline QT_ASCII_CAST_WARN bool operator<=(const char *s) const
673 { return QString::fromAscii(s) >= *this; }
674 inline QT_ASCII_CAST_WARN bool operator>=(const char *s) const
675 { return QString::fromAscii(s) <= *this; }
681 // Qt 4.x compatibility
682 typedef QLatin1String QLatin1Literal;
685 inline QString::QString(const QLatin1String &aLatin1) : d(fromLatin1_helper(aLatin1.latin1()))
687 inline int QString::length() const
689 inline const QChar QString::at(int i) const
690 { Q_ASSERT(uint(i) < uint(size())); return d->data()[i]; }
691 inline const QChar QString::operator[](int i) const
692 { Q_ASSERT(uint(i) < uint(size())); return d->data()[i]; }
693 inline const QChar QString::operator[](uint i) const
694 { Q_ASSERT(i < uint(size())); return d->data()[i]; }
695 inline bool QString::isEmpty() const
696 { return d->size == 0; }
697 inline const QChar *QString::unicode() const
698 { return reinterpret_cast<const QChar*>(d->data()); }
699 inline const QChar *QString::data() const
700 { return reinterpret_cast<const QChar*>(d->data()); }
701 inline QChar *QString::data()
702 { detach(); return reinterpret_cast<QChar*>(d->data()); }
703 inline const QChar *QString::constData() const
704 { return reinterpret_cast<const QChar*>(d->data()); }
705 inline void QString::detach()
706 { if (d->ref != 1 || d->offset) realloc(); }
707 inline bool QString::isDetached() const
708 { return d->ref == 1; }
709 inline QString &QString::operator=(const QLatin1String &s)
711 *this = fromLatin1(s.latin1());
714 inline void QString::clear()
715 { if (!isNull()) *this = QString(); }
716 inline QString::QString(const QString &other) : d(other.d)
717 { Q_ASSERT(&other != this); d->ref.ref(); }
718 inline int QString::capacity() const
720 inline QString &QString::setNum(short n, int base)
721 { return setNum(qlonglong(n), base); }
722 inline QString &QString::setNum(ushort n, int base)
723 { return setNum(qulonglong(n), base); }
724 inline QString &QString::setNum(int n, int base)
725 { return setNum(qlonglong(n), base); }
726 inline QString &QString::setNum(uint n, int base)
727 { return setNum(qulonglong(n), base); }
728 inline QString &QString::setNum(long n, int base)
729 { return setNum(qlonglong(n), base); }
730 inline QString &QString::setNum(ulong n, int base)
731 { return setNum(qulonglong(n), base); }
732 inline QString &QString::setNum(float n, char f, int prec)
733 { return setNum(double(n),f,prec); }
734 inline QString QString::arg(int a, int fieldWidth, int base, QChar fillChar) const
735 { return arg(qlonglong(a), fieldWidth, base, fillChar); }
736 inline QString QString::arg(uint a, int fieldWidth, int base, QChar fillChar) const
737 { return arg(qulonglong(a), fieldWidth, base, fillChar); }
738 inline QString QString::arg(long a, int fieldWidth, int base, QChar fillChar) const
739 { return arg(qlonglong(a), fieldWidth, base, fillChar); }
740 inline QString QString::arg(ulong a, int fieldWidth, int base, QChar fillChar) const
741 { return arg(qulonglong(a), fieldWidth, base, fillChar); }
742 inline QString QString::arg(short a, int fieldWidth, int base, QChar fillChar) const
743 { return arg(qlonglong(a), fieldWidth, base, fillChar); }
744 inline QString QString::arg(ushort a, int fieldWidth, int base, QChar fillChar) const
745 { return arg(qulonglong(a), fieldWidth, base, fillChar); }
746 inline QString QString::arg(const QString &a1, const QString &a2) const
747 { const QString *args[2] = { &a1, &a2 }; return multiArg(2, args); }
748 inline QString QString::arg(const QString &a1, const QString &a2, const QString &a3) const
749 { const QString *args[3] = { &a1, &a2, &a3 }; return multiArg(3, args); }
750 inline QString QString::arg(const QString &a1, const QString &a2, const QString &a3,
751 const QString &a4) const
752 { const QString *args[4] = { &a1, &a2, &a3, &a4 }; return multiArg(4, args); }
753 inline QString QString::arg(const QString &a1, const QString &a2, const QString &a3,
754 const QString &a4, const QString &a5) const
755 { const QString *args[5] = { &a1, &a2, &a3, &a4, &a5 }; return multiArg(5, args); }
756 inline QString QString::arg(const QString &a1, const QString &a2, const QString &a3,
757 const QString &a4, const QString &a5, const QString &a6) const
758 { const QString *args[6] = { &a1, &a2, &a3, &a4, &a5, &a6 }; return multiArg(6, args); }
759 inline QString QString::arg(const QString &a1, const QString &a2, const QString &a3,
760 const QString &a4, const QString &a5, const QString &a6,
761 const QString &a7) const
762 { const QString *args[7] = { &a1, &a2, &a3, &a4, &a5, &a6, &a7 }; return multiArg(7, args); }
763 inline QString QString::arg(const QString &a1, const QString &a2, const QString &a3,
764 const QString &a4, const QString &a5, const QString &a6,
765 const QString &a7, const QString &a8) const
766 { const QString *args[8] = { &a1, &a2, &a3, &a4, &a5, &a6, &a7, &a8 }; return multiArg(8, args); }
767 inline QString QString::arg(const QString &a1, const QString &a2, const QString &a3,
768 const QString &a4, const QString &a5, const QString &a6,
769 const QString &a7, const QString &a8, const QString &a9) const
770 { const QString *args[9] = { &a1, &a2, &a3, &a4, &a5, &a6, &a7, &a8, &a9 }; return multiArg(9, args); }
772 inline QString QString::section(QChar asep, int astart, int aend, SectionFlags aflags) const
773 { return section(QString(asep), astart, aend, aflags); }
775 inline int QString::toWCharArray(wchar_t *array) const
777 if (sizeof(wchar_t) == sizeof(QChar)) {
778 qMemCopy(array, d->data(), sizeof(QChar) * size());
781 return toUcs4_helper(d->data(), size(), reinterpret_cast<uint *>(array));
783 inline QString QString::fromWCharArray(const wchar_t *string, int size)
785 return sizeof(wchar_t) == sizeof(QChar) ? fromUtf16((const ushort *)string, size)
786 : fromUcs4((uint *)string, size);
790 class Q_CORE_EXPORT QCharRef {
793 inline QCharRef(QString &str, int idx)
795 friend class QString;
798 // most QChar operations repeated here
800 // all this is not documented: We just say "like QChar" and let it be.
801 inline operator QChar() const
802 { return i < s.d->size ? s.d->data()[i] : 0; }
803 inline QCharRef &operator=(QChar c)
804 { if (i >= s.d->size) s.expand(i); else s.detach();
805 s.d->data()[i] = c.unicode(); return *this; }
807 // An operator= for each QChar cast constructors
808 #ifndef QT_NO_CAST_FROM_ASCII
809 inline QT_ASCII_CAST_WARN QCharRef &operator=(char c)
810 { return operator=(QChar::fromAscii(c)); }
811 inline QT_ASCII_CAST_WARN QCharRef &operator=(uchar c)
812 { return operator=(QChar::fromAscii(c)); }
814 inline QCharRef &operator=(const QCharRef &c) { return operator=(QChar(c)); }
815 inline QCharRef &operator=(ushort rc) { return operator=(QChar(rc)); }
816 inline QCharRef &operator=(short rc) { return operator=(QChar(rc)); }
817 inline QCharRef &operator=(uint rc) { return operator=(QChar(rc)); }
818 inline QCharRef &operator=(int rc) { return operator=(QChar(rc)); }
821 inline bool isNull() const { return QChar(*this).isNull(); }
822 inline bool isPrint() const { return QChar(*this).isPrint(); }
823 inline bool isPunct() const { return QChar(*this).isPunct(); }
824 inline bool isSpace() const { return QChar(*this).isSpace(); }
825 inline bool isMark() const { return QChar(*this).isMark(); }
826 inline bool isLetter() const { return QChar(*this).isLetter(); }
827 inline bool isNumber() const { return QChar(*this).isNumber(); }
828 inline bool isLetterOrNumber() { return QChar(*this).isLetterOrNumber(); }
829 inline bool isDigit() const { return QChar(*this).isDigit(); }
830 inline bool isLower() const { return QChar(*this).isLower(); }
831 inline bool isUpper() const { return QChar(*this).isUpper(); }
832 inline bool isTitleCase() const { return QChar(*this).isTitleCase(); }
834 inline int digitValue() const { return QChar(*this).digitValue(); }
835 QChar toLower() const { return QChar(*this).toLower(); }
836 QChar toUpper() const { return QChar(*this).toUpper(); }
837 QChar toTitleCase () const { return QChar(*this).toTitleCase(); }
839 QChar::Category category() const { return QChar(*this).category(); }
840 QChar::Direction direction() const { return QChar(*this).direction(); }
841 QChar::Joining joining() const { return QChar(*this).joining(); }
842 bool hasMirrored() const { return QChar(*this).hasMirrored(); }
843 QChar mirroredChar() const { return QChar(*this).mirroredChar(); }
844 QString decomposition() const { return QChar(*this).decomposition(); }
845 QChar::Decomposition decompositionTag() const { return QChar(*this).decompositionTag(); }
846 uchar combiningClass() const { return QChar(*this).combiningClass(); }
848 QChar::UnicodeVersion unicodeVersion() const { return QChar(*this).unicodeVersion(); }
850 inline uchar cell() const { return QChar(*this).cell(); }
851 inline uchar row() const { return QChar(*this).row(); }
852 inline void setCell(uchar cell);
853 inline void setRow(uchar row);
855 char toAscii() const { return QChar(*this).toAscii(); }
856 char toLatin1() const { return QChar(*this).toLatin1(); }
857 ushort unicode() const { return QChar(*this).unicode(); }
858 ushort& unicode() { return s.data()[i].unicode(); }
862 inline void QCharRef::setRow(uchar arow) { QChar(*this).setRow(arow); }
863 inline void QCharRef::setCell(uchar acell) { QChar(*this).setCell(acell); }
866 inline QString::QString() : d(const_cast<Data *>(&shared_null.str)) {}
867 inline QString::~QString() { if (!d->ref.deref()) free(d); }
869 inline void QString::reserve(int asize)
871 if (d->ref != 1 || asize > int(d->alloc))
874 if (!d->capacityReserved) {
875 // cannot set unconditionally, since d could be the shared_null/shared_empty (which is const)
876 d->capacityReserved = true;
880 inline void QString::squeeze()
882 if (d->ref > 1 || d->size < int(d->alloc))
885 if (d->capacityReserved) {
886 // cannot set unconditionally, since d could be the shared_null/shared_empty (which is const)
887 d->capacityReserved = false;
891 inline QString &QString::setUtf16(const ushort *autf16, int asize)
892 { return setUnicode(reinterpret_cast<const QChar *>(autf16), asize); }
893 inline QCharRef QString::operator[](int i)
894 { Q_ASSERT(i >= 0); return QCharRef(*this, i); }
895 inline QCharRef QString::operator[](uint i)
896 { return QCharRef(*this, i); }
897 inline QString::iterator QString::begin()
898 { detach(); return reinterpret_cast<QChar*>(d->data()); }
899 inline QString::const_iterator QString::begin() const
900 { return reinterpret_cast<const QChar*>(d->data()); }
901 inline QString::const_iterator QString::constBegin() const
902 { return reinterpret_cast<const QChar*>(d->data()); }
903 inline QString::iterator QString::end()
904 { detach(); return reinterpret_cast<QChar*>(d->data() + d->size); }
905 inline QString::const_iterator QString::end() const
906 { return reinterpret_cast<const QChar*>(d->data() + d->size); }
907 inline QString::const_iterator QString::constEnd() const
908 { return reinterpret_cast<const QChar*>(d->data() + d->size); }
909 inline QBool QString::contains(const QString &s, Qt::CaseSensitivity cs) const
910 { return QBool(indexOf(s, 0, cs) != -1); }
911 inline QBool QString::contains(const QStringRef &s, Qt::CaseSensitivity cs) const
912 { return QBool(indexOf(s, 0, cs) != -1); }
913 inline QBool QString::contains(QChar c, Qt::CaseSensitivity cs) const
914 { return QBool(indexOf(c, 0, cs) != -1); }
917 inline bool operator==(QString::Null, QString::Null) { return true; }
918 inline bool operator==(QString::Null, const QString &s) { return s.isNull(); }
919 inline bool operator==(const QString &s, QString::Null) { return s.isNull(); }
920 inline bool operator!=(QString::Null, QString::Null) { return false; }
921 inline bool operator!=(QString::Null, const QString &s) { return !s.isNull(); }
922 inline bool operator!=(const QString &s, QString::Null) { return !s.isNull(); }
924 #ifndef QT_NO_CAST_FROM_ASCII
925 inline bool qStringComparisonHelper(const QString &s1, const char *s2)
927 # ifndef QT_NO_TEXTCODEC
928 if (QString::codecForCStrings) return (s1 == QString::fromAscii(s2));
930 return (s1 == QLatin1String(s2));
932 inline bool QString::operator==(const char *s) const
933 { return qStringComparisonHelper(*this, s); }
934 inline bool QString::operator!=(const char *s) const
935 { return !qStringComparisonHelper(*this, s); }
936 inline bool QString::operator<(const char *s) const
937 { return *this < QString::fromAscii(s); }
938 inline bool QString::operator>(const char *s) const
939 { return *this > QString::fromAscii(s); }
940 inline bool QString::operator<=(const char *s) const
941 { return *this <= QString::fromAscii(s); }
942 inline bool QString::operator>=(const char *s) const
943 { return *this >= QString::fromAscii(s); }
945 inline QT_ASCII_CAST_WARN bool operator==(const char *s1, const QString &s2)
946 { return qStringComparisonHelper(s2, s1); }
947 inline QT_ASCII_CAST_WARN bool operator!=(const char *s1, const QString &s2)
948 { return !qStringComparisonHelper(s2, s1); }
949 inline QT_ASCII_CAST_WARN bool operator<(const char *s1, const QString &s2)
950 { return (QString::fromAscii(s1) < s2); }
951 inline QT_ASCII_CAST_WARN bool operator>(const char *s1, const QString &s2)
952 { return (QString::fromAscii(s1) > s2); }
953 inline QT_ASCII_CAST_WARN bool operator<=(const char *s1, const QString &s2)
954 { return (QString::fromAscii(s1) <= s2); }
955 inline QT_ASCII_CAST_WARN bool operator>=(const char *s1, const QString &s2)
956 { return (QString::fromAscii(s1) >= s2); }
958 inline QT_ASCII_CAST_WARN bool operator==(const char *s1, const QLatin1String &s2)
959 { return QString::fromAscii(s1) == s2; }
960 inline QT_ASCII_CAST_WARN bool operator!=(const char *s1, const QLatin1String &s2)
961 { return QString::fromAscii(s1) != s2; }
962 inline QT_ASCII_CAST_WARN bool operator<(const char *s1, const QLatin1String &s2)
963 { return (QString::fromAscii(s1) < s2); }
964 inline QT_ASCII_CAST_WARN bool operator>(const char *s1, const QLatin1String &s2)
965 { return (QString::fromAscii(s1) > s2); }
966 inline QT_ASCII_CAST_WARN bool operator<=(const char *s1, const QLatin1String &s2)
967 { return (QString::fromAscii(s1) <= s2); }
968 inline QT_ASCII_CAST_WARN bool operator>=(const char *s1, const QLatin1String &s2)
969 { return (QString::fromAscii(s1) >= s2); }
971 inline bool operator==(const QLatin1String &s1, const QLatin1String &s2)
972 { return (qstrcmp(s1.latin1(), s2.latin1()) == 0); }
973 inline bool operator!=(const QLatin1String &s1, const QLatin1String &s2)
974 { return (qstrcmp(s1.latin1(), s2.latin1()) != 0); }
975 inline bool operator<(const QLatin1String &s1, const QLatin1String &s2)
976 { return (qstrcmp(s1.latin1(), s2.latin1()) < 0); }
977 inline bool operator<=(const QLatin1String &s1, const QLatin1String &s2)
978 { return (qstrcmp(s1.latin1(), s2.latin1()) <= 0); }
979 inline bool operator>(const QLatin1String &s1, const QLatin1String &s2)
980 { return (qstrcmp(s1.latin1(), s2.latin1()) > 0); }
981 inline bool operator>=(const QLatin1String &s1, const QLatin1String &s2)
982 { return (qstrcmp(s1.latin1(), s2.latin1()) >= 0); }
985 inline bool QString::operator==(const QByteArray &s) const
986 { return qStringComparisonHelper(*this, s.constData()); }
987 inline bool QString::operator!=(const QByteArray &s) const
988 { return !qStringComparisonHelper(*this, s.constData()); }
990 inline bool QByteArray::operator==(const QString &s) const
991 { return qStringComparisonHelper(s, constData()); }
992 inline bool QByteArray::operator!=(const QString &s) const
993 { return !qStringComparisonHelper(s, constData()); }
994 inline bool QByteArray::operator<(const QString &s) const
995 { return QString::fromAscii(constData(), size()) < s; }
996 inline bool QByteArray::operator>(const QString &s) const
997 { return QString::fromAscii(constData(), size()) > s; }
998 inline bool QByteArray::operator<=(const QString &s) const
999 { return QString::fromAscii(constData(), size()) <= s; }
1000 inline bool QByteArray::operator>=(const QString &s) const
1001 { return QString::fromAscii(constData(), size()) >= s; }
1002 #endif // QT_NO_CAST_FROM_ASCII
1004 #ifndef QT_NO_CAST_TO_ASCII
1005 inline QByteArray &QByteArray::append(const QString &s)
1006 { return append(s.toAscii()); }
1007 inline QByteArray &QByteArray::insert(int i, const QString &s)
1008 { return insert(i, s.toAscii()); }
1009 inline QByteArray &QByteArray::replace(char c, const QString &after)
1010 { return replace(c, after.toAscii()); }
1011 inline QByteArray &QByteArray::replace(const QString &before, const char *after)
1012 { return replace(before.toAscii(), after); }
1013 inline QByteArray &QByteArray::replace(const QString &before, const QByteArray &after)
1014 { return replace(before.toAscii(), after); }
1015 inline QByteArray &QByteArray::operator+=(const QString &s)
1016 { return operator+=(s.toAscii()); }
1017 inline int QByteArray::indexOf(const QString &s, int from) const
1018 { return indexOf(s.toAscii(), from); }
1019 inline int QByteArray::lastIndexOf(const QString &s, int from) const
1020 { return lastIndexOf(s.toAscii(), from); }
1021 #endif // QT_NO_CAST_TO_ASCII
1023 #if !defined(QT_USE_FAST_OPERATOR_PLUS) && !defined(QT_USE_QSTRINGBUILDER)
1024 inline const QString operator+(const QString &s1, const QString &s2)
1025 { QString t(s1); t += s2; return t; }
1026 inline const QString operator+(const QString &s1, QChar s2)
1027 { QString t(s1); t += s2; return t; }
1028 inline const QString operator+(QChar s1, const QString &s2)
1029 { QString t(s1); t += s2; return t; }
1030 # ifndef QT_NO_CAST_FROM_ASCII
1031 inline QT_ASCII_CAST_WARN const QString operator+(const QString &s1, const char *s2)
1032 { QString t(s1); t += QString::fromAscii(s2); return t; }
1033 inline QT_ASCII_CAST_WARN const QString operator+(const char *s1, const QString &s2)
1034 { QString t = QString::fromAscii(s1); t += s2; return t; }
1035 inline QT_ASCII_CAST_WARN const QString operator+(char c, const QString &s)
1036 { QString t = s; t.prepend(QChar::fromAscii(c)); return t; }
1037 inline QT_ASCII_CAST_WARN const QString operator+(const QString &s, char c)
1038 { QString t = s; t += QChar::fromAscii(c); return t; }
1039 inline QT_ASCII_CAST_WARN const QString operator+(const QByteArray &ba, const QString &s)
1040 { QString t = QString::fromAscii(ba.constData(), qstrnlen(ba.constData(), ba.size())); t += s; return t; }
1041 inline QT_ASCII_CAST_WARN const QString operator+(const QString &s, const QByteArray &ba)
1042 { QString t(s); t += QString::fromAscii(ba.constData(), qstrnlen(ba.constData(), ba.size())); return t; }
1043 # endif // QT_NO_CAST_FROM_ASCII
1044 #endif // QT_USE_QSTRINGBUILDER
1047 inline std::string QString::toStdString() const
1048 { const QByteArray asc = toAscii(); return std::string(asc.constData(), asc.length()); }
1050 inline QString QString::fromStdString(const std::string &s)
1051 { return fromAscii(s.data(), int(s.size())); }
1053 # ifndef QT_NO_STL_WCHAR
1054 inline QStdWString QString::toStdWString() const
1057 str.resize(length());
1059 #if defined(_MSC_VER) && _MSC_VER >= 1400
1060 // VS2005 crashes if the string is empty
1065 str.resize(toWCharArray(&(*str.begin())));
1068 inline QString QString::fromStdWString(const QStdWString &s)
1069 { return fromWCharArray(s.data(), int(s.size())); }
1073 #if !defined(QT_NO_DATASTREAM) || (defined(QT_BOOTSTRAPPED) && !defined(QT_BUILD_QMAKE))
1074 Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QString &);
1075 Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QString &);
1078 Q_DECLARE_TYPEINFO(QString, Q_MOVABLE_TYPE);
1079 Q_DECLARE_SHARED(QString)
1080 Q_DECLARE_OPERATORS_FOR_FLAGS(QString::SectionFlags)
1083 class Q_CORE_EXPORT QStringRef {
1084 const QString *m_string;
1088 inline QStringRef():m_string(0), m_position(0), m_size(0){}
1089 inline QStringRef(const QString *string, int position, int size);
1090 inline QStringRef(const QString *string);
1091 inline QStringRef(const QStringRef &other)
1092 :m_string(other.m_string), m_position(other.m_position), m_size(other.m_size)
1095 inline ~QStringRef(){}
1096 inline const QString *string() const { return m_string; }
1097 inline int position() const { return m_position; }
1098 inline int size() const { return m_size; }
1099 inline int count() const { return m_size; }
1100 inline int length() const { return m_size; }
1102 inline QStringRef &operator=(const QStringRef &other) {
1103 m_string = other.m_string; m_position = other.m_position;
1104 m_size = other.m_size; return *this;
1107 int indexOf(const QString &str, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1108 int indexOf(QChar ch, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1109 int indexOf(QLatin1String str, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1110 int indexOf(const QStringRef &str, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1111 int lastIndexOf(const QString &str, int from = -1, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1112 int lastIndexOf(QChar ch, int from = -1, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1113 int lastIndexOf(QLatin1String str, int from = -1, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1114 int lastIndexOf(const QStringRef &str, int from = -1, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1116 inline QBool contains(const QString &str, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1117 inline QBool contains(QChar ch, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1118 inline QBool contains(QLatin1String str, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1119 inline QBool contains(const QStringRef &str, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1121 int count(const QString &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1122 int count(QChar c, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1123 int count(const QStringRef &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1125 bool startsWith(const QString &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1126 bool startsWith(QLatin1String s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1127 bool startsWith(QChar c, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1128 bool startsWith(const QStringRef &c, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1130 bool endsWith(const QString &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1131 bool endsWith(QLatin1String s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1132 bool endsWith(QChar c, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1133 bool endsWith(const QStringRef &c, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1135 inline QStringRef &operator=(const QString *string);
1137 inline const QChar *unicode() const {
1139 return reinterpret_cast<const QChar *>(QString::shared_null.str.data());
1140 return m_string->unicode() + m_position;
1142 inline const QChar *data() const { return unicode(); }
1143 inline const QChar *constData() const { return unicode(); }
1145 QByteArray toAscii() const Q_REQUIRED_RESULT;
1146 QByteArray toLatin1() const Q_REQUIRED_RESULT;
1147 QByteArray toUtf8() const Q_REQUIRED_RESULT;
1148 QByteArray toLocal8Bit() const Q_REQUIRED_RESULT;
1149 QVector<uint> toUcs4() const Q_REQUIRED_RESULT;
1151 inline void clear() { m_string = 0; m_position = m_size = 0; }
1152 QString toString() const;
1153 inline bool isEmpty() const { return m_size == 0; }
1154 inline bool isNull() const { return m_string == 0 || m_string->isNull(); }
1156 QStringRef appendTo(QString *string) const;
1158 inline const QChar at(int i) const
1159 { Q_ASSERT(i >= 0 && i < size()); return m_string->at(i + m_position); }
1161 int compare(const QString &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1162 int compare(const QStringRef &s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1163 int compare(QLatin1String s, Qt::CaseSensitivity cs = Qt::CaseSensitive) const;
1164 static int compare(const QStringRef &s1, const QString &s2,
1165 Qt::CaseSensitivity = Qt::CaseSensitive);
1166 static int compare(const QStringRef &s1, const QStringRef &s2,
1167 Qt::CaseSensitivity = Qt::CaseSensitive);
1168 static int compare(const QStringRef &s1, QLatin1String s2,
1169 Qt::CaseSensitivity cs = Qt::CaseSensitive);
1171 int localeAwareCompare(const QString &s) const;
1172 int localeAwareCompare(const QStringRef &s) const;
1173 static int localeAwareCompare(const QStringRef &s1, const QString &s2);
1174 static int localeAwareCompare(const QStringRef &s1, const QStringRef &s2);
1177 inline QStringRef &QStringRef::operator=(const QString *aString)
1178 { m_string = aString; m_position = 0; m_size = aString?aString->size():0; return *this; }
1180 inline QStringRef::QStringRef(const QString *aString, int aPosition, int aSize)
1181 :m_string(aString), m_position(aPosition), m_size(aSize){}
1183 inline QStringRef::QStringRef(const QString *aString)
1184 :m_string(aString), m_position(0), m_size(aString?aString->size() : 0){}
1186 Q_CORE_EXPORT bool operator==(const QStringRef &s1,const QStringRef &s2);
1187 inline bool operator!=(const QStringRef &s1,const QStringRef &s2)
1188 { return !(s1 == s2); }
1189 Q_CORE_EXPORT bool operator==(const QString &s1,const QStringRef &s2);
1190 inline bool operator!=(const QString &s1,const QStringRef &s2)
1191 { return !(s1 == s2); }
1192 inline bool operator==(const QStringRef &s1,const QString &s2)
1193 { return s2 == s1; }
1194 inline bool operator!=(const QStringRef &s1,const QString &s2)
1195 { return s2 != s1; }
1196 Q_CORE_EXPORT bool operator==(const QLatin1String &s1, const QStringRef &s2);
1197 inline bool operator!=(const QLatin1String &s1,const QStringRef &s2)
1198 { return !(s1 == s2); }
1199 inline bool operator==(const QStringRef &s1,const QLatin1String &s2)
1200 { return s2 == s1; }
1201 inline bool operator!=(const QStringRef &s1,const QLatin1String &s2)
1202 { return s2 != s1; }
1204 Q_CORE_EXPORT bool operator<(const QStringRef &s1,const QStringRef &s2);
1205 inline bool operator>(const QStringRef &s1, const QStringRef &s2)
1207 inline bool operator<=(const QStringRef &s1, const QStringRef &s2)
1208 { return !(s1 > s2); }
1209 inline bool operator>=(const QStringRef &s1, const QStringRef &s2)
1210 { return !(s1 < s2); }
1212 inline bool qStringComparisonHelper(const QStringRef &s1, const char *s2)
1214 # ifndef QT_NO_TEXTCODEC
1215 if (QString::codecForCStrings) return (s1 == QString::fromAscii(s2));
1217 return (s1 == QLatin1String(s2));
1220 inline QT_ASCII_CAST_WARN bool operator==(const char *s1, const QStringRef &s2)
1221 { return qStringComparisonHelper(s2, s1); }
1222 inline QT_ASCII_CAST_WARN bool operator==(const QStringRef &s1, const char *s2)
1223 { return qStringComparisonHelper(s1, s2); }
1224 inline QT_ASCII_CAST_WARN bool operator!=(const char *s1, const QStringRef &s2)
1225 { return !qStringComparisonHelper(s2, s1); }
1226 inline QT_ASCII_CAST_WARN bool operator!=(const QStringRef &s1, const char *s2)
1227 { return !qStringComparisonHelper(s1, s2); }
1229 inline int QString::compare(const QStringRef &s, Qt::CaseSensitivity cs) const
1230 { return QString::compare_helper(constData(), length(), s.constData(), s.length(), cs); }
1231 inline int QString::compare(const QString &s1, const QStringRef &s2, Qt::CaseSensitivity cs)
1232 { return QString::compare_helper(s1.constData(), s1.length(), s2.constData(), s2.length(), cs); }
1233 inline int QStringRef::compare(const QString &s, Qt::CaseSensitivity cs) const
1234 { return QString::compare_helper(constData(), length(), s.constData(), s.length(), cs); }
1235 inline int QStringRef::compare(const QStringRef &s, Qt::CaseSensitivity cs) const
1236 { return QString::compare_helper(constData(), length(), s.constData(), s.length(), cs); }
1237 inline int QStringRef::compare(QLatin1String s, Qt::CaseSensitivity cs) const
1238 { return QString::compare_helper(constData(), length(), s, cs); }
1239 inline int QStringRef::compare(const QStringRef &s1, const QString &s2, Qt::CaseSensitivity cs)
1240 { return QString::compare_helper(s1.constData(), s1.length(), s2.constData(), s2.length(), cs); }
1241 inline int QStringRef::compare(const QStringRef &s1, const QStringRef &s2, Qt::CaseSensitivity cs)
1242 { return QString::compare_helper(s1.constData(), s1.length(), s2.constData(), s2.length(), cs); }
1243 inline int QStringRef::compare(const QStringRef &s1, QLatin1String s2, Qt::CaseSensitivity cs)
1244 { return QString::compare_helper(s1.constData(), s1.length(), s2, cs); }
1246 inline int QString::localeAwareCompare(const QStringRef &s) const
1247 { return localeAwareCompare_helper(constData(), length(), s.constData(), s.length()); }
1248 inline int QString::localeAwareCompare(const QString& s1, const QStringRef& s2)
1249 { return localeAwareCompare_helper(s1.constData(), s1.length(), s2.constData(), s2.length()); }
1250 inline int QStringRef::localeAwareCompare(const QString &s) const
1251 { return QString::localeAwareCompare_helper(constData(), length(), s.constData(), s.length()); }
1252 inline int QStringRef::localeAwareCompare(const QStringRef &s) const
1253 { return QString::localeAwareCompare_helper(constData(), length(), s.constData(), s.length()); }
1254 inline int QStringRef::localeAwareCompare(const QStringRef &s1, const QString &s2)
1255 { return QString::localeAwareCompare_helper(s1.constData(), s1.length(), s2.constData(), s2.length()); }
1256 inline int QStringRef::localeAwareCompare(const QStringRef &s1, const QStringRef &s2)
1257 { return QString::localeAwareCompare_helper(s1.constData(), s1.length(), s2.constData(), s2.length()); }
1259 inline QBool QStringRef::contains(const QString &s, Qt::CaseSensitivity cs) const
1260 { return QBool(indexOf(s, 0, cs) != -1); }
1261 inline QBool QStringRef::contains(QLatin1String s, Qt::CaseSensitivity cs) const
1262 { return QBool(indexOf(s, 0, cs) != -1); }
1263 inline QBool QStringRef::contains(QChar c, Qt::CaseSensitivity cs) const
1264 { return QBool(indexOf(c, 0, cs) != -1); }
1265 inline QBool QStringRef::contains(const QStringRef &s, Qt::CaseSensitivity cs) const
1266 { return QBool(indexOf(s, 0, cs) != -1); }
1269 #if QT_DEPRECATED_SINCE(5, 0)
1270 QT_DEPRECATED inline QString escape(const QString &plain) {
1271 return plain.toHtmlEscaped();
1280 #if defined(QT_USE_FAST_OPERATOR_PLUS) || defined(QT_USE_QSTRINGBUILDER)
1281 #include <QtCore/qstringbuilder.h>