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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
//
// 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 <private/qitem_p.h>
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 <frans.englich@nokia.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 <frans.englich@nokia.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());
}
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
#endif
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