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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.
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QUrl>
#include "qcommonsequencetypes_p.h"
#include "qnodebuilder_p.h"
#include "qtextnodeconstructor_p.h"
QT_BEGIN_NAMESPACE
using namespace QPatternist;
TextNodeConstructor::TextNodeConstructor(const Expression::Ptr &op) : SingleContainer(op)
{
}
Item TextNodeConstructor::evaluateSingleton(const DynamicContext::Ptr &context) const
{
const Item chars(m_operand->evaluateSingleton(context));
if(!chars)
return Item();
const NodeBuilder::Ptr nodeBuilder(context->nodeBuilder(QUrl()));
const QString &v = chars.stringValue();
nodeBuilder->characters(QStringRef(&v));
const QAbstractXmlNodeModel::Ptr nm(nodeBuilder->builtDocument());
context->addNodeModel(nm);
return nm->root(QXmlNodeModelIndex());
}
void TextNodeConstructor::evaluateToSequenceReceiver(const DynamicContext::Ptr &context) const
{
const Item item(m_operand->evaluateSingleton(context));
QAbstractXmlReceiver *const receiver = context->outputReceiver();
if(item)
{
const QString &v = item.stringValue();
receiver->characters(QStringRef(&v));
}
else
receiver->characters(QStringRef());
}
SequenceType::Ptr TextNodeConstructor::staticType() const
{
if(m_operand->staticType()->cardinality().allowsEmpty())
return CommonSequenceTypes::ZeroOrOneTextNode;
else
return CommonSequenceTypes::ExactlyOneTextNode;
}
SequenceType::List TextNodeConstructor::expectedOperandTypes() const
{
SequenceType::List result;
result.append(CommonSequenceTypes::ZeroOrOneString);
return result;
}
Expression::Properties TextNodeConstructor::properties() const
{
return DisableElimination | IsNodeConstructor;
}
ExpressionVisitorResult::Ptr
TextNodeConstructor::accept(const ExpressionVisitor::Ptr &visitor) const
{
return visitor->visit(this);
}
QT_END_NAMESPACE
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