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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (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 http://qt.nokia.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
//
// 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_AbstractDuration_H
#define Patternist_AbstractDuration_H
#include <QRegExp>
#include "qitem_p.h"
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
namespace QPatternist
{
/**
* @short Base class for classes implementing durations.
*
* @see <a href="http://www.w3.org/TR/xmlschema-2/#duration">XML Schema Part
* 2: Datatypes Second Edition, 3.2.6 duration</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>
* @author Frans Englich <frans.englich@nokia.com>
* @ingroup Patternist_xdm
* @todo Documentation is missing/incomplete
*/
class AbstractDuration : public AtomicValue
{
public:
typedef QExplicitlySharedDataPointer<AbstractDuration> Ptr;
/**
* @short The amount in milli seconds.
*/
typedef qint64 Value;
/**
* @short Acts as a mapping table for AbstractDuration::create()
* and describes where certain fields in a QRegExp pattern can be found
* for a particular W3C XML Schema duration type.
*
* @author Frans Englich <frans.englich@nokia.com>
* @ingroup Patternist_xdm
*/
class CaptureTable
{
public:
CaptureTable(const QRegExp &exp,
const qint8 yearP,
const qint8 monthP,
const qint8 dayP = -1,
const qint8 tDelimiterP = -1,
const qint8 hourP = -1,
const qint8 minutesP = -1,
const qint8 secondsP = -1,
const qint8 msecondsP = -1) : regExp(exp),
year(yearP),
month(monthP),
day(dayP),
tDelimiter(tDelimiterP),
hour(hourP),
minutes(minutesP),
seconds(secondsP),
mseconds(msecondsP)
{
Q_ASSERT(exp.isValid());
Q_ASSERT(yearP == -1 || yearP == 2);
}
const QRegExp regExp;
const qint8 year;
const qint8 month;
const qint8 day;
const qint8 tDelimiter;
const qint8 hour;
const qint8 minutes;
const qint8 seconds;
const qint8 mseconds;
};
/**
* Determines whether this Duration is equal to @p other.
*
* @note Do not re-implement this function. It uses getters such as years() and
* mseconds() for determining its truth value.
*/
bool operator==(const AbstractDuration &other) const;
virtual YearProperty years() const = 0;
virtual MonthProperty months() const = 0;
virtual DayCountProperty days() const = 0;
virtual HourProperty hours() const = 0;
virtual MinuteProperty minutes() const = 0;
virtual SecondProperty seconds() const = 0;
virtual MSecondProperty mseconds() const = 0;
/**
* @returns the value of this AbstractDuration. For example,
* in the case of xs:yearMonthDuration, that is YearMonthDuration,
* years times twelve plus the months is returned.
*/
virtual Value value() const = 0;
/**
* A polymorphic factory function that returns instances of the
* sub-class with the value @p val.
*/
virtual Item fromValue(const Value val) const = 0;
/**
* Determines whether this AbstractDuration is positive. For example,
* "P10H" is positive, while "-P10H" is not.
*
* @note Do not re-implement this function. Use the constructor, AbstractDuration(),
* for changing the value.
* @returns @c true if this AbstractDuration is positive, otherwise @c false.
*/
bool isPositive() const;
protected:
AbstractDuration(const bool isPos);
static QString serializeMSeconds(const MSecondProperty mseconds);
static AtomicValue::Ptr create(const CaptureTable &captTable,
const QString &lexical,
bool *isPositive,
YearProperty *years,
MonthProperty *months,
DayCountProperty *days,
HourProperty *hours,
MinuteProperty *minutes,
SecondProperty *seconds,
MSecondProperty *mseconds);
const bool m_isPositive;
};
}
QT_END_NAMESPACE
QT_END_HEADER
#endif
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