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Diffstat (limited to 'src/xmlpatterns/data/qabstractdatetime_p.h')
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1 files changed, 261 insertions, 0 deletions
diff --git a/src/xmlpatterns/data/qabstractdatetime_p.h b/src/xmlpatterns/data/qabstractdatetime_p.h new file mode 100644 index 0000000..2786adf --- /dev/null +++ b/src/xmlpatterns/data/qabstractdatetime_p.h @@ -0,0 +1,261 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the QtXmlPatterns module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. + +#ifndef Patternist_AbstractDateTime_H +#define Patternist_AbstractDateTime_H + +#include <QDateTime> +#include <QRegExp> + +#include "qitem_p.h" + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +namespace QPatternist +{ + /** + * @short Base class for classes implementing values related to time, date or both. + * + * @see <a href="http://www.w3.org/TR/xmlschema-2/#dateTime">XML Schema + * Part 2: Datatypes Second Edition, 3.2.7 dateTime</a> + * @see <a href="http://www.w3.org/TR/xpath-datamodel/#dates-and-times">XQuery + * 1.0 and XPath 2.0 Data Model (XDM), 3.3.2 Dates and Times</a> + * @see <a href="http://www.cl.cam.ac.uk/~mgk25/iso-time.html">A summary of + * the international standard date and time notation, Markus Kuhn</a> + * @see <a href="http://en.wikipedia.org/wiki/Iso_date">ISO 8601, + * From Wikipedia, the free encyclopedia</a> + * @author Frans Englich <fenglich@trolltech.com> + * @ingroup Patternist_xdm + */ + class AbstractDateTime : public AtomicValue + { + public: + typedef QExplicitlySharedDataPointer<AbstractDateTime> Ptr; + + AbstractDateTime(const QDateTime &dateTime); + + enum + { + DefaultYear = 2000, + DefaultMonth = 1, + DefaultDay = 1 + }; + + /** + * @returns the date time this class represents, as a QDateTime. + */ + inline const QDateTime &toDateTime() const + { + return m_dateTime; + } + + + /** + * @short Acts as a mapping table for AbstractDateTime::create() + * and describes where certain fields in a QRegExp pattern can be found + * for a particular W3C XML Schema date/time type. + * + * @author Frans Englich <fenglich@trolltech.com> + * @ingroup Patternist_xdm + */ + class CaptureTable + { + public: + CaptureTable(const QRegExp &exp, + const qint8 zoneOffsetSignP, + const qint8 zoneOffsetHourP, + const qint8 zoneOffsetMinuteP, + const qint8 zoneOffsetUTCSymbolP, + const qint8 yearP, + const qint8 monthP = -1, + const qint8 dayP = -1, + const qint8 hourP = -1, + const qint8 minutesP = -1, + const qint8 secondsP = -1, + const qint8 msecondsP = -1, + const qint8 yearSignP = -1) : regExp(exp) + , zoneOffsetSign(zoneOffsetSignP) + , zoneOffsetHour(zoneOffsetHourP) + , zoneOffsetMinute(zoneOffsetMinuteP) + , zoneOffsetUTCSymbol(zoneOffsetUTCSymbolP) + , year(yearP) + , month(monthP) + , day(dayP) + , hour(hourP) + , minutes(minutesP) + , seconds(secondsP) + , mseconds(msecondsP) + , yearSign(yearSignP) + { + Q_ASSERT(exp.isValid()); + } + + const QRegExp regExp; + const qint8 zoneOffsetSign; + const qint8 zoneOffsetHour; + const qint8 zoneOffsetMinute; + const qint8 zoneOffsetUTCSymbol; + const qint8 year; + const qint8 month; + const qint8 day; + const qint8 hour; + const qint8 minutes; + const qint8 seconds; + const qint8 mseconds; + const qint8 yearSign; + + private: + Q_DISABLE_COPY(CaptureTable) + }; + + /** + * @returns m_dateTime's time part converted to string. This is for + * example "12" or "01.023". + */ + QString timeToString() const; + + /** + * @returns m_dateTime's date part converted to string. This is for + * example "2004-05-12" or "-2004-05-12". + */ + QString dateToString() const; + + /** + * Serializes the milli seconds @p msecs into a string representation. For + * example, if @p msecs is 1, ".001" is returned; if @p msecs is 100 then + * is ".1" returned. + */ + static QString serializeMSeconds(const MSecondProperty msecs); + + /** + * A factory function for creating instances that are of the dynamic + * type of this class, that represents @p dt. + * + * The default implementation performs an assert() call. This function + * is not pure virtual because all sub-classes do not use it. + */ + virtual Item fromValue(const QDateTime &dt) const; + + /** + * Determines whether @p dt is a date-time that can be represented, + * and isn't too early or too late. If it is valid, @c true is returned. Otherwise, + * @c false is returned and @p message is set to contain a translated message for + * human consumption, describing the error. + */ + static bool isRangeValid(const QDate &date, + QString &message); + + protected: + + /** + * @returns m_dateTime' zone offset converted to string, as per the + * the W3C XML Schema types. This is for + * example "Z" or "+12.00"(depending on m_dateTime). + */ + QString zoneOffsetToString() const; + + static QDateTime create(AtomicValue::Ptr &errorMessage, + const QString &lexicalSource, + const CaptureTable &captTable); + + /** + * @short Makes the QDateTime::timeSpec() and QDateTime::zoneOffset() + * of @p ot * consistent to @p from. + */ + static void copyTimeSpec(const QDateTime &from, + QDateTime &to); + + const QDateTime m_dateTime; + + private: + enum ZoneOffsetParseResult + { + /** + * syntax or logical error was encountered. + */ + Error, + /** + * It's a valid offset from UTC. + */ + Offset, + + /** + * No zone offset was specified, it's an implementation defined zone offset. + */ + LocalTime, + UTC + }; + + /** + * @short Parses the zone offset. All types use zone offsets. + * + * If result is set to Offset, the offset is returned, otherwise + * the return value is undefined. + * + * The offset is in seconds. + */ + static ZOTotal parseZoneOffset(ZoneOffsetParseResult &result, + const QStringList &capts, + const CaptureTable &captTable); + + static inline void setUtcOffset(QDateTime &result, + const ZoneOffsetParseResult zoResult, + const int zoOffset); + }; +} + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif |