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Diffstat (limited to 'src/xmlpatterns/expr/qtextnodeconstructor.cpp')
-rw-r--r-- | src/xmlpatterns/expr/qtextnodeconstructor.cpp | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/src/xmlpatterns/expr/qtextnodeconstructor.cpp b/src/xmlpatterns/expr/qtextnodeconstructor.cpp new file mode 100644 index 0000000..085a909 --- /dev/null +++ b/src/xmlpatterns/expr/qtextnodeconstructor.cpp @@ -0,0 +1,115 @@ +/**************************************************************************** +** +** 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. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#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 |