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/****************************************************************************
**
** 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_ProcessingInstructionConstructor_H
#define Patternist_ProcessingInstructionConstructor_H
#include "qpaircontainer_p.h"
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
namespace QPatternist
{
/**
* @short Constructs an element node. This covers both computed and directly constructed
* element nodes.
*
* @see <a href="http://www.w3.org/TR/xquery/#id-constructors">XQuery
* 1.0: An XML Query Language, 3.7 Constructors</a>
* @author Frans Englich <fenglich@trolltech.com>
* @ingroup Patternist_expressions
*/
class ProcessingInstructionConstructor : public PairContainer
{
public:
ProcessingInstructionConstructor(const Expression::Ptr &operand1,
const Expression::Ptr &operand2);
virtual Item evaluateSingleton(const DynamicContext::Ptr &context) const;
virtual void evaluateToSequenceReceiver(const DynamicContext::Ptr &context) const;
virtual SequenceType::Ptr staticType() const;
/**
* Both arguments must of type @c xs:string. It is assumes that the first argument's
* lexical space is @c xs:NCName.
*/
virtual SequenceType::List expectedOperandTypes() const;
virtual ExpressionVisitorResult::Ptr accept(const ExpressionVisitor::Ptr &visitor) const;
virtual Properties properties() const;
private:
inline QXmlName evaluateTardata(const DynamicContext::Ptr &context) const;
/**
* Performs left-trimming only.
*
* @see QString::trimmed()
*/
static inline QString leftTrimmed(const QString &input);
QString data(const DynamicContext::Ptr &context) const;
};
}
QT_END_NAMESPACE
QT_END_HEADER
#endif
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