src/xmlpatterns/functions/qelementavailablefn.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 19 Feb 2010 23:40:16 +0200
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Revision: 201003 Kit: 201007
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/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtXmlPatterns module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file.  Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights.  These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qqnameconstructor_p.h"
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#include "qelementavailablefn_p.h"
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QT_BEGIN_NAMESPACE
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using namespace QPatternist;
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ElementAvailableFN::ElementAvailableFN() : m_xsltInstructions(allXSLTInstructions())
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{
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}
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QSet<QString> ElementAvailableFN::allXSLTInstructions()
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{
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    enum
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    {
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        StringSetSize = 27
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    };
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    QSet<QString> retval;
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    retval.reserve(StringSetSize);
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    /* Alphabetically. */
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    retval.insert(QLatin1String("analyze-string"));
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    retval.insert(QLatin1String("apply-imports"));
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    retval.insert(QLatin1String("apply-templates"));
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    retval.insert(QLatin1String("attribute"));
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    retval.insert(QLatin1String("attribute-set"));
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    retval.insert(QLatin1String("call-template"));
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    retval.insert(QLatin1String("character-map"));
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    retval.insert(QLatin1String("choose"));
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    retval.insert(QLatin1String("comment"));
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    retval.insert(QLatin1String("copy"));
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    retval.insert(QLatin1String("copy-of"));
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    retval.insert(QLatin1String("document"));
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    retval.insert(QLatin1String("element"));
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    retval.insert(QLatin1String("fallback"));
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    retval.insert(QLatin1String("for-each"));
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    retval.insert(QLatin1String("for-each-group"));
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    retval.insert(QLatin1String("if"));
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    retval.insert(QLatin1String("message"));
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    retval.insert(QLatin1String("namespace"));
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    retval.insert(QLatin1String("next-match"));
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    retval.insert(QLatin1String("number"));
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    retval.insert(QLatin1String("perform-sort"));
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    retval.insert(QLatin1String("processing-instruction"));
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    retval.insert(QLatin1String("result-document"));
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    retval.insert(QLatin1String("sequence"));
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    retval.insert(QLatin1String("text"));
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    retval.insert(QLatin1String("variable"));
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    Q_ASSERT(retval.count() == StringSetSize);
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    return retval;
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}
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bool ElementAvailableFN::evaluateEBV(const DynamicContext::Ptr &context) const
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{
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    const Item arg(m_operands.first()->evaluateSingleton(context));
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    const QString stringName(arg.stringValue());
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    const QXmlName elementName(QNameConstructor::expandQName<DynamicContext::Ptr,
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                                                             ReportContext::XTDE1440,
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                                                             ReportContext::XTDE1440>(stringName,
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                                                                                      context,
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                                                                                      staticNamespaces(),
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                                                                                      this,
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                                                                                      false));
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    if(elementName.namespaceURI() != StandardNamespaces::xslt)
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        return false;
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    QString prefix;
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    QString localName;
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    XPathHelper::splitQName(stringName, prefix, localName);
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    return m_xsltInstructions.contains(localName);
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}
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QT_END_NAMESPACE