diff options
Diffstat (limited to 'src/corelib/tools/qstring.h')
| -rw-r--r-- | src/corelib/tools/qstring.h | 146 |
1 files changed, 113 insertions, 33 deletions
diff --git a/src/corelib/tools/qstring.h b/src/corelib/tools/qstring.h index a12946e23c..bb918f36c8 100644 --- a/src/corelib/tools/qstring.h +++ b/src/corelib/tools/qstring.h @@ -1,7 +1,7 @@ /**************************************************************************** ** -** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal +** Copyright (C) 2015 The Qt Company Ltd. +** Contact: http://www.qt.io/licensing/ ** ** This file is part of the QtCore module of the Qt Toolkit. ** @@ -10,9 +10,9 @@ ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see http://www.qt.io/terms-conditions. For further +** information use the contact form at http://www.qt.io/contact-us. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser @@ -23,8 +23,8 @@ ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. ** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception +** As a special exception, The Qt Company gives you certain additional +** rights. These rights are described in The Qt Company LGPL Exception ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. ** ** $QT_END_LICENSE$ @@ -34,6 +34,10 @@ #ifndef QSTRING_H #define QSTRING_H +#if defined(QT_NO_CAST_FROM_ASCII) && defined(QT_RESTRICTED_CAST_FROM_ASCII) +#error QT_NO_CAST_FROM_ASCII and QT_RESTRICTED_CAST_FROM_ASCII must not be defined at the same time +#endif + #include <QtCore/qchar.h> #include <QtCore/qbytearray.h> #include <QtCore/qrefcount.h> @@ -93,7 +97,7 @@ public: inline bool operator>=(const QString &s) const; inline bool operator<=(const QString &s) const; -#ifndef QT_NO_CAST_FROM_ASCII +#if !defined(QT_NO_CAST_FROM_ASCII) && !defined(QT_RESTRICTED_CAST_FROM_ASCII) inline QT_ASCII_CAST_WARN bool operator==(const char *s) const; inline QT_ASCII_CAST_WARN bool operator!=(const char *s) const; inline QT_ASCII_CAST_WARN bool operator<(const char *s) const; @@ -107,7 +111,7 @@ public: inline QT_ASCII_CAST_WARN bool operator>(const QByteArray &s) const; inline QT_ASCII_CAST_WARN bool operator<=(const QByteArray &s) const; inline QT_ASCII_CAST_WARN bool operator>=(const QByteArray &s) const; -#endif // QT_NO_CAST_FROM_ASCII +#endif // !defined(QT_NO_CAST_FROM_ASCII) && !defined(QT_RESTRICTED_CAST_FROM_ASCII) private: int m_size; @@ -206,22 +210,22 @@ class Q_CORE_EXPORT QString public: typedef QStringData Data; - inline QString(); + inline QString() Q_DECL_NOTHROW; explicit QString(const QChar *unicode, int size = -1); QString(QChar c); QString(int size, QChar c); inline QString(QLatin1String latin1); - inline QString(const QString &); + inline QString(const QString &) Q_DECL_NOTHROW; inline ~QString(); QString &operator=(QChar c); - QString &operator=(const QString &); + QString &operator=(const QString &) Q_DECL_NOTHROW; inline QString &operator=(QLatin1String latin1); #ifdef Q_COMPILER_RVALUE_REFS - inline QString(QString && other) : d(other.d) { other.d = Data::sharedNull(); } - inline QString &operator=(QString &&other) + inline QString(QString && other) Q_DECL_NOTHROW : d(other.d) { other.d = Data::sharedNull(); } + inline QString &operator=(QString &&other) Q_DECL_NOTHROW { qSwap(d, other.d); return *this; } #endif - inline void swap(QString &other) { qSwap(d, other.d); } + inline void swap(QString &other) Q_DECL_NOTHROW { qSwap(d, other.d); } inline int size() const { return d->size; } inline int count() const { return d->size; } inline int length() const; @@ -296,6 +300,8 @@ public: QString &vsprintf(const char *format, va_list ap) Q_ATTRIBUTE_FORMAT_PRINTF(2, 0); QString &sprintf(const char *format, ...) Q_ATTRIBUTE_FORMAT_PRINTF(2, 3); + static QString vasprintf(const char *format, va_list ap) Q_ATTRIBUTE_FORMAT_PRINTF(1, 0); + static QString asprintf(const char *format, ...) Q_ATTRIBUTE_FORMAT_PRINTF(1, 2); int indexOf(QChar c, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const; int indexOf(const QString &s, int from = 0, Qt::CaseSensitivity cs = Qt::CaseSensitive) const; @@ -327,7 +333,9 @@ public: #ifndef QT_NO_REGULAREXPRESSION int indexOf(const QRegularExpression &re, int from = 0) const; + int indexOf(const QRegularExpression &re, int from, QRegularExpressionMatch *rmatch) const; // ### Qt 6: merge overloads int lastIndexOf(const QRegularExpression &re, int from = -1) const; + int lastIndexOf(const QRegularExpression &re, int from, QRegularExpressionMatch *rmatch) const; // ### Qt 6: merge overloads bool contains(const QRegularExpression &re) const; bool contains(const QRegularExpression &re, QRegularExpressionMatch *match) const; // ### Qt 6: merge overloads int count(const QRegularExpression &re) const; @@ -369,12 +377,44 @@ public: QString leftJustified(int width, QChar fill = QLatin1Char(' '), bool trunc = false) const Q_REQUIRED_RESULT; QString rightJustified(int width, QChar fill = QLatin1Char(' '), bool trunc = false) const Q_REQUIRED_RESULT; +#if defined(Q_COMPILER_REF_QUALIFIERS) && !defined(QT_COMPILING_QSTRING_COMPAT_CPP) +# if defined(Q_CC_GNU) + // required due to https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61941 +# pragma push_macro("Q_REQUIRED_RESULT") +# undef Q_REQUIRED_RESULT +# define Q_REQUIRED_RESULT +# define Q_REQUIRED_RESULT_pushed +# endif + QString toLower() const & Q_REQUIRED_RESULT + { return toLower_helper(*this); } + QString toLower() && Q_REQUIRED_RESULT + { return toLower_helper(*this); } + QString toUpper() const & Q_REQUIRED_RESULT + { return toUpper_helper(*this); } + QString toUpper() && Q_REQUIRED_RESULT + { return toUpper_helper(*this); } + QString toCaseFolded() const & Q_REQUIRED_RESULT + { return toCaseFolded_helper(*this); } + QString toCaseFolded() && Q_REQUIRED_RESULT + { return toCaseFolded_helper(*this); } + QString trimmed() const & Q_REQUIRED_RESULT + { return trimmed_helper(*this); } + QString trimmed() && Q_REQUIRED_RESULT + { return trimmed_helper(*this); } + QString simplified() const & Q_REQUIRED_RESULT + { return simplified_helper(*this); } + QString simplified() && Q_REQUIRED_RESULT + { return simplified_helper(*this); } +# ifdef Q_REQUIRED_RESULT_pushed +# pragma pop_macro("Q_REQUIRED_RESULT") +# endif +#else QString toLower() const Q_REQUIRED_RESULT; QString toUpper() const Q_REQUIRED_RESULT; QString toCaseFolded() const Q_REQUIRED_RESULT; - QString trimmed() const Q_REQUIRED_RESULT; QString simplified() const Q_REQUIRED_RESULT; +#endif QString toHtmlEscaped() const Q_REQUIRED_RESULT; QString &insert(int i, QChar c); @@ -596,7 +636,16 @@ public: inline bool operator>=(QLatin1String s) const { return !operator<(s); } // ASCII compatibility -#ifndef QT_NO_CAST_FROM_ASCII +#if defined(QT_RESTRICTED_CAST_FROM_ASCII) + template <int N> + inline QString(const char (&ch)[N]) + : d(fromAscii_helper(ch, N - 1)) + {} + template <int N> + inline QString &operator=(const char (&ch)[N]) + { return (*this = fromLatin1(ch, N - 1)); } +#endif +#if !defined(QT_NO_CAST_FROM_ASCII) && !defined(QT_RESTRICTED_CAST_FROM_ASCII) inline QT_ASCII_CAST_WARN QString(const char *ch) : d(fromAscii_helper(ch, ch ? int(strlen(ch)) : -1)) {} @@ -686,6 +735,13 @@ public: static inline QString fromStdWString(const std::wstring &s); inline std::wstring toStdWString() const; +#if defined(Q_COMPILER_UNICODE_STRINGS) || defined(Q_QDOC) + static inline QString fromStdU16String(const std::u16string &s); + inline std::u16string toStdU16String() const; + static inline QString fromStdU32String(const std::u32string &s); + inline std::u32string toStdU32String() const; +#endif + #if defined(Q_OS_MAC) || defined(Q_QDOC) static QString fromCFString(CFStringRef string); CFStringRef toCFString() const Q_DECL_CF_RETURNS_RETAINED; @@ -734,6 +790,16 @@ private: Qt::CaseSensitivity cs = Qt::CaseSensitive); static int localeAwareCompare_helper(const QChar *data1, int length1, const QChar *data2, int length2); + static QString toLower_helper(const QString &str); + static QString toLower_helper(QString &str); + static QString toUpper_helper(const QString &str); + static QString toUpper_helper(QString &str); + static QString toCaseFolded_helper(const QString &str); + static QString toCaseFolded_helper(QString &str); + static QString trimmed_helper(const QString &str); + static QString trimmed_helper(QString &str); + static QString simplified_helper(const QString &str); + static QString simplified_helper(QString &str); static Data *fromLatin1_helper(const char *str, int size = -1); static Data *fromAscii_helper(const char *str, int size = -1); static QString fromUtf8_helper(const char *str, int size); @@ -808,7 +874,7 @@ inline QString &QString::operator=(QLatin1String s) } inline void QString::clear() { if (!isNull()) *this = QString(); } -inline QString::QString(const QString &other) : d(other.d) +inline QString::QString(const QString &other) Q_DECL_NOTHROW : d(other.d) { Q_ASSERT(&other != this); d->ref.ref(); } inline int QString::capacity() const { return d->alloc ? d->alloc - 1 : 0; } @@ -867,11 +933,8 @@ inline QString QString::arg(const QString &a1, const QString &a2, const QString inline QString QString::section(QChar asep, int astart, int aend, SectionFlags aflags) const { return section(QString(asep), astart, aend, aflags); } -#ifdef Q_CC_MSVC -// "conditional expression is constant" -#pragma warning(push) -#pragma warning(disable : 4127) -#endif +QT_WARNING_PUSH +QT_WARNING_DISABLE_MSVC(4127) // "conditional expression is constant" inline int QString::toWCharArray(wchar_t *array) const { @@ -882,9 +945,7 @@ inline int QString::toWCharArray(wchar_t *array) const return toUcs4_helper(d->data(), size(), reinterpret_cast<uint *>(array)); } -#ifdef Q_CC_MSVC -#pragma warning(pop) -#endif +QT_WARNING_POP inline QString QString::fromWCharArray(const wchar_t *string, int size) { @@ -988,7 +1049,7 @@ inline void QCharRef::setRow(uchar arow) { QChar(*this).setRow(arow); } inline void QCharRef::setCell(uchar acell) { QChar(*this).setCell(acell); } -inline QString::QString() : d(Data::sharedNull()) {} +inline QString::QString() Q_DECL_NOTHROW : d(Data::sharedNull()) {} inline QString::~QString() { if (!d->ref.deref()) Data::deallocate(d); } inline void QString::reserve(int asize) @@ -1083,7 +1144,7 @@ inline bool QLatin1String::operator>=(const QString &s) const inline bool QLatin1String::operator<=(const QString &s) const { return s >= *this; } -#ifndef QT_NO_CAST_FROM_ASCII +#if !defined(QT_NO_CAST_FROM_ASCII) && !defined(QT_RESTRICTED_CAST_FROM_ASCII) inline bool QString::operator==(const char *s) const { return QString::compare_helper(constData(), size(), s, -1) == 0; } inline bool QString::operator!=(const char *s) const @@ -1174,7 +1235,7 @@ inline bool QByteArray::operator<=(const QString &s) const { return QString::compare_helper(s.constData(), s.size(), constData(), qstrnlen(constData(), size())) <= 0; } inline bool QByteArray::operator>=(const QString &s) const { return QString::compare_helper(s.constData(), s.size(), constData(), qstrnlen(constData(), size())) >= 0; } -#endif // QT_NO_CAST_FROM_ASCII +#endif // !defined(QT_NO_CAST_FROM_ASCII) && !defined(QT_RESTRICTED_CAST_FROM_ASCII) #ifndef QT_NO_CAST_TO_ASCII inline QByteArray &QByteArray::append(const QString &s) @@ -1202,7 +1263,7 @@ inline const QString operator+(const QString &s1, QChar s2) { QString t(s1); t += s2; return t; } inline const QString operator+(QChar s1, const QString &s2) { QString t(s1); t += s2; return t; } -# ifndef QT_NO_CAST_FROM_ASCII +# if !defined(QT_NO_CAST_FROM_ASCII) && !defined(QT_RESTRICTED_CAST_FROM_ASCII) inline QT_ASCII_CAST_WARN const QString operator+(const QString &s1, const char *s2) { QString t(s1); t += QString::fromUtf8(s2); return t; } inline QT_ASCII_CAST_WARN const QString operator+(const char *s1, const QString &s2) @@ -1242,6 +1303,25 @@ inline std::wstring QString::toStdWString() const inline QString QString::fromStdWString(const std::wstring &s) { return fromWCharArray(s.data(), int(s.size())); } +#if defined(Q_COMPILER_UNICODE_STRINGS) +inline QString QString::fromStdU16String(const std::u16string &s) +{ return fromUtf16(s.data(), int(s.size())); } + +inline std::u16string QString::toStdU16String() const +{ return std::u16string(reinterpret_cast<const char16_t*>(utf16()), length()); } + +inline QString QString::fromStdU32String(const std::u32string &s) +{ return fromUcs4(s.data(), int(s.size())); } + +inline std::u32string QString::toStdU32String() const +{ + std::u32string u32str(length(), char32_t(0)); + int len = toUcs4_helper(d->data(), length(), reinterpret_cast<uint*>(&u32str[0])); + u32str.resize(len); + return u32str; +} +#endif + #if !defined(QT_NO_DATASTREAM) || (defined(QT_BOOTSTRAPPED) && !defined(QT_BUILD_QMAKE)) Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QString &); Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QString &); @@ -1355,7 +1435,7 @@ public: inline const QChar at(int i) const { Q_ASSERT(uint(i) < uint(size())); return m_string->at(i + m_position); } -#ifndef QT_NO_CAST_FROM_ASCII +#if !defined(QT_NO_CAST_FROM_ASCII) && !defined(QT_RESTRICTED_CAST_FROM_ASCII) // ASCII compatibility inline QT_ASCII_CAST_WARN bool operator==(const char *s) const; inline QT_ASCII_CAST_WARN bool operator!=(const char *s) const; @@ -1429,7 +1509,7 @@ inline bool operator<=(const QStringRef &s1, const QStringRef &s2) inline bool operator>=(const QStringRef &s1, const QStringRef &s2) { return !(s1 < s2); } -#ifndef QT_NO_CAST_FROM_ASCII +#if !defined(QT_NO_CAST_FROM_ASCII) && !defined(QT_RESTRICTED_CAST_FROM_ASCII) inline QT_ASCII_CAST_WARN bool QStringRef::operator==(const char *s) const { return QString::compare_helper(constData(), size(), s, -1) == 0; } inline QT_ASCII_CAST_WARN bool QStringRef::operator!=(const char *s) const @@ -1455,7 +1535,7 @@ inline QT_ASCII_CAST_WARN bool operator>(const char *s1, const QStringRef &s2) { return QString::compare_helper(s2.constData(), s2.size(), s1, -1) <= 0; } inline QT_ASCII_CAST_WARN bool operator>=(const char *s1, const QStringRef &s2) { return QString::compare_helper(s2.constData(), s2.size(), s1, -1) >= 0; } -#endif // QT_NO_CAST_FROM_ASCII +#endif // !defined(QT_NO_CAST_FROM_ASCII) && !defined(QT_RESTRICTED_CAST_FROM_ASCII) inline int QString::compare(const QStringRef &s, Qt::CaseSensitivity cs) const { return QString::compare_helper(constData(), length(), s.constData(), s.length(), cs); } |