/****************************************************************************+
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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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+
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#include "qanyuri_p.h"+
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#include "qbuiltintypes_p.h"+
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#include "qcommonvalues_p.h"+
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#include "qpatternistlocale_p.h"+
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#include "qnodenamespaceresolver_p.h"+
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#include "qqnameconstructor_p.h"+
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#include "qqnamevalue_p.h"+
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#include "qatomicstring_p.h"+
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#include "qxpathhelper_p.h"+
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+
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#include "qqnamefns_p.h"+
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+
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QT_BEGIN_NAMESPACE+
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+
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using namespace QPatternist;+
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+
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Item QNameFN::evaluateSingleton(const DynamicContext::Ptr &context) const+
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{+
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    const Item paramURI(m_operands.first()->evaluateSingleton(context));+
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    const QString paramQName(m_operands.last()->evaluateSingleton(context).stringValue());+
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+
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    QString ns;+
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    if(paramURI)+
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        ns = paramURI.stringValue();+
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+
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    if(!XPathHelper::isQName(paramQName))+
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    {+
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        context->error(QtXmlPatterns::tr("%1 is an invalid %2").arg(formatData(paramQName),+
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                                                     formatType(context->namePool(), BuiltinTypes::xsQName)),+
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                       ReportContext::FOCA0002, this);+
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        return Item();+
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    }+
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+
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    QString prefix;+
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    QString lname;+
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    XPathHelper::splitQName(paramQName, prefix, lname);+
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    const QXmlName n(context->namePool()->allocateQName(ns, lname, prefix));+
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+
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    if(ns.isEmpty())+
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    {+
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        if(prefix.isEmpty())+
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            return toItem(QNameValue::fromValue(context->namePool(), n));+
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        else+
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        {+
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            context->error(QtXmlPatterns::tr(+
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                              "If the first argument is the empty sequence or "+
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                              "a zero-length string (no namespace), a prefix "+
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                              "cannot be specified. Prefix %1 was specified.")+
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                           .arg(formatKeyword(prefix)),+
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                           ReportContext::FOCA0002, this);+
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            return Item(); /* Silence compiler warning. */+
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        }+
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    }+
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    else+
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        return toItem(QNameValue::fromValue(context->namePool(), n));+
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}+
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+
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Item ResolveQNameFN::evaluateSingleton(const DynamicContext::Ptr &context) const+
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{+
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    const Item itemName(m_operands.first()->evaluateSingleton(context));+
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+
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    if(!itemName)+
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        return Item();+
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+
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    const NamespaceResolver::Ptr resolver(new NodeNamespaceResolver(m_operands.last()->evaluateSingleton(context)));+
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    const QString strName(itemName.stringValue());+
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    const QXmlName name = QNameConstructor::expandQName<DynamicContext::Ptr,+
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                                                     ReportContext::FOCA0002,+
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                                                     ReportContext::FONS0004>(strName,+
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                                                                              context,+
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                                                                              resolver,+
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                                                                              this);+
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+
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    return toItem(QNameValue::fromValue(context->namePool(), name));+
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}+
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+
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Item PrefixFromQNameFN::evaluateSingleton(const DynamicContext::Ptr &context) const+
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{+
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    const QNameValue::Ptr arg(m_operands.first()->evaluateSingleton(context).as<QNameValue>());+
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    if(!arg)+
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        return Item();+
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+
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    const QString prefix(context->namePool()->stringForPrefix(arg->qName().prefix()));+
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+
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    if(prefix.isEmpty())+
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        return Item();+
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    else+
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        return AtomicString::fromValue(context->namePool()->stringForPrefix(arg->qName().prefix()));+
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}+
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+
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Item LocalNameFromQNameFN::evaluateSingleton(const DynamicContext::Ptr &context) const+
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{+
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    const QNameValue::Ptr arg(m_operands.first()->evaluateSingleton(context).as<QNameValue>());+
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    return arg ? toItem(AtomicString::fromValue(context->namePool()->stringForLocalName(arg->qName().localName()))) : Item();+
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}+
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+
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Item NamespaceURIFromQNameFN::evaluateSingleton(const DynamicContext::Ptr &context) const+
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{+
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    const QNameValue::Ptr arg(m_operands.first()->evaluateSingleton(context).as<QNameValue>());+
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    return arg ? toItem(AnyURI::fromValue(context->namePool()->stringForNamespace(arg->qName().namespaceURI()))) : Item();+
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}+
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+
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Item NamespaceURIForPrefixFN::evaluateSingleton(const DynamicContext::Ptr &context) const+
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{+
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    const Item prefixItem(m_operands.first()->evaluateSingleton(context));+
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    QXmlName::PrefixCode prefix;+
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+
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    if(prefixItem)+
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        prefix = context->namePool()->allocatePrefix(prefixItem.stringValue());+
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    else+
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        prefix = StandardPrefixes::empty;+
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+
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    const Item eleItem(m_operands.last()->evaluateSingleton(context));+
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    Q_ASSERT(eleItem);+
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+
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    const QXmlName::NamespaceCode ns = eleItem.asNode().namespaceForPrefix(prefix);+
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+
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    if(ns == NamespaceResolver::NoBinding)+
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    {+
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        /* This is a bit tricky. The default namespace is not considered an in-scope binding+
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         * on a node, but the specification for this function do consider it a binding and therefore+
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         * the empty string. */+
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        if(prefix == StandardPrefixes::empty)+
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            return CommonValues::EmptyString;+
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        else+
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            return Item();+
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    }+
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    else+
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        return toItem(AnyURI::fromValue(context->namePool()->stringForNamespace(ns)));+
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}+
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+
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Item::Iterator::Ptr InScopePrefixesFN::evaluateSequence(const DynamicContext::Ptr &context) const+
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{+
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    const Item e(m_operands.first()->evaluateSingleton(context));+
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+
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    const QVector<QXmlName> nbs(e.asNode().namespaceBindings());+
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    const int len = nbs.size();+
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    const NamePool::Ptr np(context->namePool());+
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+
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    QList<Item> result;+
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+
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    for(int i = 0; i < len; ++i)+
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        result.append(AtomicString::fromValue(np->stringForPrefix(nbs.at(i).prefix())));+
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+
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    return makeListIterator(result);+
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}+
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+
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QT_END_NAMESPACE+
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