diff options
Diffstat (limited to 'src/corelib/text/qstring.cpp')
| -rw-r--r-- | src/corelib/text/qstring.cpp | 258 |
1 files changed, 232 insertions, 26 deletions
diff --git a/src/corelib/text/qstring.cpp b/src/corelib/text/qstring.cpp index 65a85007f1..210a8afc53 100644 --- a/src/corelib/text/qstring.cpp +++ b/src/corelib/text/qstring.cpp @@ -1,6 +1,6 @@ /**************************************************************************** ** -** Copyright (C) 2016 The Qt Company Ltd. +** Copyright (C) 2020 The Qt Company Ltd. ** Copyright (C) 2018 Intel Corporation. ** Copyright (C) 2019 Mail.ru Group. ** Contact: https://www.qt.io/licensing/ @@ -591,6 +591,20 @@ bool QtPrivate::isLatin1(QStringView s) noexcept return true; } +bool QtPrivate::isValidUtf16(QStringView s) noexcept +{ + Q_CONSTEXPR uint InvalidCodePoint = UINT_MAX; + + QStringIterator i(s); + while (i.hasNext()) { + uint c = i.next(InvalidCodePoint); + if (c == InvalidCodePoint) + return false; + } + + return true; +} + // conversion between Latin 1 and UTF-16 void qt_from_latin1(ushort *dst, const char *str, size_t size) noexcept { @@ -1765,6 +1779,9 @@ const QString::Null QString::null = { }; /*! \enum QString::SplitBehavior + \obsolete + Use Qt::SplitBehavior instead. + This enum specifies how the split() function should behave with respect to empty strings. @@ -4686,7 +4703,7 @@ int QString::count(const QRegularExpression &re) const QString QString::section(const QString &sep, int start, int end, SectionFlags flags) const { - const QVector<QStringRef> sections = splitRef(sep, KeepEmptyParts, + const QVector<QStringRef> sections = splitRef(sep, Qt::KeepEmptyParts, (flags & SectionCaseInsensitiveSeps) ? Qt::CaseInsensitive : Qt::CaseSensitive); const int sectionsSize = sections.size(); if (!(flags & SectionSkipEmpty)) { @@ -6259,6 +6276,16 @@ QString& QString::fill(QChar ch, int size) sensitivity setting \a cs. */ +/*! + \fn int QString::compare(QChar ch, Qt::CaseSensitivity cs = Qt::CaseSensitive) const + + \since 5.14 + \overload compare() + + Performs a comparison of this with \a ch, using the case + sensitivity setting \a cs. +*/ + #if QT_STRINGVIEW_LEVEL < 2 /*! \overload compare() @@ -7711,23 +7738,33 @@ QString QString::number(double n, char f, int prec) namespace { template<class ResultList, class StringSource> static ResultList splitString(const StringSource &source, const QChar *sep, - QString::SplitBehavior behavior, Qt::CaseSensitivity cs, const int separatorSize) + Qt::SplitBehavior behavior, Qt::CaseSensitivity cs, const int separatorSize) { ResultList list; typename StringSource::size_type start = 0; typename StringSource::size_type end; typename StringSource::size_type extra = 0; while ((end = QtPrivate::findString(QStringView(source.constData(), source.size()), start + extra, QStringView(sep, separatorSize), cs)) != -1) { - if (start != end || behavior == QString::KeepEmptyParts) + if (start != end || behavior == Qt::KeepEmptyParts) list.append(source.mid(start, end - start)); start = end + separatorSize; extra = (separatorSize == 0 ? 1 : 0); } - if (start != source.size() || behavior == QString::KeepEmptyParts) + if (start != source.size() || behavior == Qt::KeepEmptyParts) list.append(source.mid(start, -1)); return list; } +#if QT_DEPRECATED_SINCE(5, 15) +Qt::SplitBehavior mapSplitBehavior(QString::SplitBehavior sb) +{ +QT_WARNING_PUSH +QT_WARNING_DISABLE_DEPRECATED + return sb & QString::SkipEmptyParts ? Qt::SkipEmptyParts : Qt::KeepEmptyParts; +QT_WARNING_POP +} +#endif + } // namespace /*! @@ -7757,12 +7794,25 @@ static ResultList splitString(const StringSource &source, const QChar *sep, \snippet qstring/main.cpp 62-slashes \sa QStringList::join(), section() + + \since 5.14 */ -QStringList QString::split(const QString &sep, SplitBehavior behavior, Qt::CaseSensitivity cs) const +QStringList QString::split(const QString &sep, Qt::SplitBehavior behavior, Qt::CaseSensitivity cs) const { return splitString<QStringList>(*this, sep.constData(), behavior, cs, sep.size()); } +#if QT_DEPRECATED_SINCE(5, 15) +/*! + \overload + \obsolete +*/ +QStringList QString::split(const QString &sep, SplitBehavior behavior, Qt::CaseSensitivity cs) const +{ + return split(sep, mapSplitBehavior(behavior), cs); +} +#endif + /*! Splits the string into substring references wherever \a sep occurs, and returns the list of those strings. @@ -7773,29 +7823,68 @@ QStringList QString::split(const QString &sep, SplitBehavior behavior, Qt::CaseS \note All references are valid as long this string is alive. Destroying this string will cause all references to be dangling pointers. - \since 5.4 + \since 5.14 \sa QStringRef split() */ +QVector<QStringRef> QString::splitRef(const QString &sep, Qt::SplitBehavior behavior, + Qt::CaseSensitivity cs) const +{ + return splitString<QVector<QStringRef>>(QStringRef(this), sep.constData(), behavior, + cs, sep.size()); +} + +#if QT_DEPRECATED_SINCE(5, 15) +/*! + \overload + \obsolete + \since 5.4 +*/ QVector<QStringRef> QString::splitRef(const QString &sep, SplitBehavior behavior, Qt::CaseSensitivity cs) const { - return splitString<QVector<QStringRef> >(QStringRef(this), sep.constData(), behavior, cs, sep.size()); + return splitRef(sep, mapSplitBehavior(behavior), cs); } +#endif + /*! \overload + \since 5.14 */ -QStringList QString::split(QChar sep, SplitBehavior behavior, Qt::CaseSensitivity cs) const +QStringList QString::split(QChar sep, Qt::SplitBehavior behavior, Qt::CaseSensitivity cs) const { return splitString<QStringList>(*this, &sep, behavior, cs, 1); } +#if QT_DEPRECATED_SINCE(5, 15) +/*! + \overload + \obsolete +*/ +QStringList QString::split(QChar sep, SplitBehavior behavior, Qt::CaseSensitivity cs) const +{ + return split(sep, mapSplitBehavior(behavior), cs); +} +#endif + +/*! + \overload + \since 5.14 +*/ +QVector<QStringRef> QString::splitRef(QChar sep, Qt::SplitBehavior behavior, + Qt::CaseSensitivity cs) const +{ + return splitString<QVector<QStringRef> >(QStringRef(this), &sep, behavior, cs, 1); +} + +#if QT_DEPRECATED_SINCE(5, 15) /*! \overload \since 5.4 */ QVector<QStringRef> QString::splitRef(QChar sep, SplitBehavior behavior, Qt::CaseSensitivity cs) const { - return splitString<QVector<QStringRef> >(QStringRef(this), &sep, behavior, cs, 1); + return splitRef(sep, mapSplitBehavior(behavior), cs); } +#endif /*! Splits the string into substrings references wherever \a sep occurs, and @@ -7807,26 +7896,50 @@ QVector<QStringRef> QString::splitRef(QChar sep, SplitBehavior behavior, Qt::Cas \note All references are valid as long this string is alive. Destroying this string will cause all references to be dangling pointers. + \since 5.14 +*/ +QVector<QStringRef> QStringRef::split(const QString &sep, Qt::SplitBehavior behavior, Qt::CaseSensitivity cs) const +{ + return splitString<QVector<QStringRef> >(*this, sep.constData(), behavior, cs, sep.size()); +} + +#if QT_DEPRECATED_SINCE(5, 15) +/*! + \overload \since 5.4 + \obsolete */ QVector<QStringRef> QStringRef::split(const QString &sep, QString::SplitBehavior behavior, Qt::CaseSensitivity cs) const { - return splitString<QVector<QStringRef> >(*this, sep.constData(), behavior, cs, sep.size()); + return split(sep, mapSplitBehavior(behavior), cs); } +#endif /*! \overload + \since 5.14 +*/ +QVector<QStringRef> QStringRef::split(QChar sep, Qt::SplitBehavior behavior, Qt::CaseSensitivity cs) const +{ + return splitString<QVector<QStringRef> >(*this, &sep, behavior, cs, 1); +} + +#if QT_DEPRECATED_SINCE(5, 15) +/*! + \overload \since 5.4 + \obsolete */ QVector<QStringRef> QStringRef::split(QChar sep, QString::SplitBehavior behavior, Qt::CaseSensitivity cs) const { - return splitString<QVector<QStringRef> >(*this, &sep, behavior, cs, 1); + return split(sep, mapSplitBehavior(behavior), cs); } +#endif #ifndef QT_NO_REGEXP namespace { template<class ResultList, typename MidMethod> -static ResultList splitString(const QString &source, MidMethod mid, const QRegExp &rx, QString::SplitBehavior behavior) +static ResultList splitString(const QString &source, MidMethod mid, const QRegExp &rx, Qt::SplitBehavior behavior) { QRegExp rx2(rx); ResultList list; @@ -7835,12 +7948,12 @@ static ResultList splitString(const QString &source, MidMethod mid, const QRegEx int end; while ((end = rx2.indexIn(source, start + extra)) != -1) { int matchedLen = rx2.matchedLength(); - if (start != end || behavior == QString::KeepEmptyParts) + if (start != end || behavior == Qt::KeepEmptyParts) list.append((source.*mid)(start, end - start)); start = end + matchedLen; extra = (matchedLen == 0) ? 1 : 0; } - if (start != source.size() || behavior == QString::KeepEmptyParts) + if (start != source.size() || behavior == Qt::KeepEmptyParts) list.append((source.*mid)(start, -1)); return list; } @@ -7848,6 +7961,7 @@ static ResultList splitString(const QString &source, MidMethod mid, const QRegEx /*! \overload + \since 5.14 Splits the string into substrings wherever the regular expression \a rx matches, and returns the list of those strings. If \a rx @@ -7872,14 +7986,25 @@ static ResultList splitString(const QString &source, MidMethod mid, const QRegEx \sa QStringList::join(), section() */ -QStringList QString::split(const QRegExp &rx, SplitBehavior behavior) const +QStringList QString::split(const QRegExp &rx, Qt::SplitBehavior behavior) const { return splitString<QStringList>(*this, &QString::mid, rx, behavior); } +# if QT_DEPRECATED_SINCE(5, 15) /*! \overload - \since 5.4 + \obsolete +*/ +QStringList QString::split(const QRegExp &rx, SplitBehavior behavior) const +{ + return split(rx, mapSplitBehavior(behavior)); +} +# endif + +/*! + \overload + \since 5.14 Splits the string into substring references wherever the regular expression \a rx matches, and returns the list of those strings. If \a rx @@ -7891,17 +8016,29 @@ QStringList QString::split(const QRegExp &rx, SplitBehavior behavior) const \sa QStringRef split() */ -QVector<QStringRef> QString::splitRef(const QRegExp &rx, SplitBehavior behavior) const +QVector<QStringRef> QString::splitRef(const QRegExp &rx, Qt::SplitBehavior behavior) const { return splitString<QVector<QStringRef> >(*this, &QString::midRef, rx, behavior); } -#endif + +# if QT_DEPRECATED_SINCE(5, 15) +/*! + \overload + \since 5.4 + \obsolete +*/ +QVector<QStringRef> QString::splitRef(const QRegExp &rx, SplitBehavior behavior) const +{ + return splitRef(rx, mapSplitBehavior(behavior)); +} +# endif +#endif // QT_NO_REGEXP #if QT_CONFIG(regularexpression) namespace { template<class ResultList, typename MidMethod> static ResultList splitString(const QString &source, MidMethod mid, const QRegularExpression &re, - QString::SplitBehavior behavior) + Qt::SplitBehavior behavior) { ResultList list; if (!re.isValid()) { @@ -7915,12 +8052,12 @@ static ResultList splitString(const QString &source, MidMethod mid, const QRegul while (iterator.hasNext()) { QRegularExpressionMatch match = iterator.next(); end = match.capturedStart(); - if (start != end || behavior == QString::KeepEmptyParts) + if (start != end || behavior == Qt::KeepEmptyParts) list.append((source.*mid)(start, end - start)); start = match.capturedEnd(); } - if (start != source.size() || behavior == QString::KeepEmptyParts) + if (start != source.size() || behavior == Qt::KeepEmptyParts) list.append((source.*mid)(start, -1)); return list; @@ -7929,7 +8066,7 @@ static ResultList splitString(const QString &source, MidMethod mid, const QRegul /*! \overload - \since 5.0 + \since 5.14 Splits the string into substrings wherever the regular expression \a re matches, and returns the list of those strings. If \a re @@ -7954,14 +8091,26 @@ static ResultList splitString(const QString &source, MidMethod mid, const QRegul \sa QStringList::join(), section() */ -QStringList QString::split(const QRegularExpression &re, SplitBehavior behavior) const +QStringList QString::split(const QRegularExpression &re, Qt::SplitBehavior behavior) const { return splitString<QStringList>(*this, &QString::mid, re, behavior); } +# if QT_DEPRECATED_SINCE(5, 15) /*! \overload - \since 5.4 + \since 5.0 + \obsolete +*/ +QStringList QString::split(const QRegularExpression &re, SplitBehavior behavior) const +{ + return split(re, mapSplitBehavior(behavior)); +} +# endif + +/*! + \overload + \since 5.14 Splits the string into substring references wherever the regular expression \a re matches, and returns the list of those strings. If \a re @@ -7973,10 +8122,22 @@ QStringList QString::split(const QRegularExpression &re, SplitBehavior behavior) \sa split() QStringRef */ -QVector<QStringRef> QString::splitRef(const QRegularExpression &re, SplitBehavior behavior) const +QVector<QStringRef> QString::splitRef(const QRegularExpression &re, Qt::SplitBehavior behavior) const { return splitString<QVector<QStringRef> >(*this, &QString::midRef, re, behavior); } + +# if QT_DEPRECATED_SINCE(5, 15) +/*! + \overload + \since 5.4 + \obsolete +*/ +QVector<QStringRef> QString::splitRef(const QRegularExpression &re, SplitBehavior behavior) const +{ + return splitRef(re, mapSplitBehavior(behavior)); +} +# endif #endif // QT_CONFIG(regularexpression) /*! @@ -9060,6 +9221,21 @@ bool QString::isRightToLeft() const return QtPrivate::isRightToLeft(QStringView(*this)); } +/*! + \fn bool QString::isValidUtf16() const noexcept + \since 5.15 + + Returns \c true if the string contains valid UTF-16 encoded data, + or \c false otherwise. + + Note that this function does not perform any special validation of the + data; it merely checks if it can be successfully decoded from UTF-16. + The data is assumed to be in host byte order; the presence of a BOM + is meaningless. + + \sa QStringView::isValidUtf16() +*/ + /*! \fn QChar *QString::data() Returns a pointer to the data stored in the QString. The pointer @@ -9542,6 +9718,23 @@ QString &QString::setRawData(const QChar *unicode, int size) */ /*! + \fn int QLatin1String::compare(QStringView str, Qt::CaseSensitivity cs) const + \fn int QLatin1String::compare(QLatin1String l1, Qt::CaseSensitivity cs) const + \fn int QLatin1String::compare(QChar ch) const + \fn int QLatin1String::compare(QChar ch, Qt::CaseSensitivity cs) const + \since 5.14 + + Returns an integer that compares to zero as this Latin-1 string compares to the + string-view \a str, Latin-1 string \a l1, or character \a ch, respectively. + + If \a cs is Qt::CaseSensitive (the default), the comparison is case sensitive; + otherwise the comparison is case-insensitive. + + \sa operator==(), operator<(), operator>() +*/ + + +/*! \fn bool QLatin1String::startsWith(QStringView str, Qt::CaseSensitivity cs) const \since 5.10 \fn bool QLatin1String::startsWith(QLatin1String l1, Qt::CaseSensitivity cs) const @@ -10909,6 +11102,19 @@ QStringRef QStringRef::appendTo(QString *string) const /*! \overload + \fn int QStringRef::compare(QChar ch, Qt::CaseSensitivity cs = Qt::CaseSensitive) const + \since 5.14 + + Compares this string with \a ch and returns an + integer less than, equal to, or greater than zero if this string + is less than, equal to, or greater than \a ch, interpreted as a string of length one. + + If \a cs is Qt::CaseSensitive, the comparison is case sensitive; + otherwise the comparison is case insensitive. +*/ + +/*! + \overload \fn int QStringRef::compare(QLatin1String other, Qt::CaseSensitivity cs = Qt::CaseSensitive) const \since 4.5 |