Long live Qt 4.5!

1 files changed, 209 insertions, 0 deletions

diff --git a/src/xmlpatterns/functions/qnodefns.cpp b/src/xmlpatterns/functions/qnodefns.cpp
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index 0000000000..5230a6c7ac
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+++ b/src/xmlpatterns/functions/qnodefns.cpp
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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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qabstractfloat_p.h"
+#include "qanyuri_p.h"
+#include "qboolean_p.h"
+#include "qbuiltintypes_p.h"
+#include "qcommonnamespaces_p.h"
+#include "qcommonvalues_p.h"
+#include "qliteral_p.h"
+#include "qatomicstring_p.h"
+
+#include "qnodefns_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+Item NameFN::evaluateSingleton(const DynamicContext::Ptr &context) const
+{
+    const Item node(m_operands.first()->evaluateSingleton(context));
+
+    if(node)
+    {
+        const QXmlName name(node.asNode().name());
+
+        if(name.isNull())
+            return CommonValues::EmptyString;
+        else
+            return AtomicString::fromValue(context->namePool()->toLexical(name));
+    }
+    else
+        return CommonValues::EmptyString;
+}
+
+Item LocalNameFN::evaluateSingleton(const DynamicContext::Ptr &context) const
+{
+    const Item node(m_operands.first()->evaluateSingleton(context));
+
+    if(node)
+    {
+        const QXmlName name(node.asNode().name());
+
+        if(name.isNull())
+            return CommonValues::EmptyString;
+        else
+            return AtomicString::fromValue(context->namePool()->stringForLocalName(name.localName()));
+    }
+    else
+        return CommonValues::EmptyString;
+}
+
+Item NamespaceURIFN::evaluateSingleton(const DynamicContext::Ptr &context) const
+{
+    const Item node(m_operands.first()->evaluateSingleton(context));
+
+    if(node)
+    {
+        const QXmlName name(node.asNode().name());
+
+        if(name.isNull())
+            return CommonValues::EmptyAnyURI;
+        else
+            return toItem(AnyURI::fromValue(context->namePool()->stringForNamespace(name.namespaceURI())));
+    }
+    else
+        return CommonValues::EmptyAnyURI;
+}
+
+Item NumberFN::evaluateSingleton(const DynamicContext::Ptr &context) const
+{
+    const Item item(m_operands.first()->evaluateSingleton(context));
+
+    if(!item)
+        return CommonValues::DoubleNaN;
+
+    const Item val(cast(item, context));
+    Q_ASSERT(val);
+
+    if(val.as<AtomicValue>()->hasError())
+        return CommonValues::DoubleNaN;
+    else
+        return val;
+}
+
+Expression::Ptr NumberFN::typeCheck(const StaticContext::Ptr &context,
+                                    const SequenceType::Ptr &reqType)
+{
+    const Expression::Ptr me(FunctionCall::typeCheck(context, reqType));
+    const ItemType::Ptr sourceType(m_operands.first()->staticType()->itemType());
+
+    if(BuiltinTypes::xsDouble->xdtTypeMatches(sourceType))
+    {
+        /* The operand is already xs:double, no need for fn:number(). */
+        return m_operands.first()->typeCheck(context, reqType);
+    }
+    else if(prepareCasting(context, sourceType))
+        return me;
+    else
+    {
+        /* Casting to xs:double will never succeed and we would always return NaN.*/
+        return wrapLiteral(CommonValues::DoubleNaN, context, this)->typeCheck(context, reqType);
+    }
+}
+
+bool LangFN::isLangMatch(const QString &candidate, const QString &toMatch)
+{
+    if(QString::compare(candidate, toMatch, Qt::CaseInsensitive) == 0)
+        return true;
+
+    return candidate.startsWith(toMatch, Qt::CaseInsensitive)
+           && candidate.length() > toMatch.length()
+           && candidate.at(toMatch.length()) == QLatin1Char('-');
+}
+
+Item LangFN::evaluateSingleton(const DynamicContext::Ptr &context) const
+{
+    const Item langArg(m_operands.first()->evaluateSingleton(context));
+    const QString lang(langArg ? langArg.stringValue() : QString());
+
+    const QXmlName xmlLang(StandardNamespaces::xml, StandardLocalNames::lang, StandardPrefixes::xml);
+    const QXmlNodeModelIndex langNode(m_operands.at(1)->evaluateSingleton(context).asNode());
+
+    const QXmlNodeModelIndex::Iterator::Ptr ancestors(langNode.iterate(QXmlNodeModelIndex::AxisAncestorOrSelf));
+    QXmlNodeModelIndex ancestor(ancestors->next());
+
+    while(!ancestor.isNull())
+    {
+        const QXmlNodeModelIndex::Iterator::Ptr attributes(ancestor.iterate(QXmlNodeModelIndex::AxisAttribute));
+        QXmlNodeModelIndex attribute(attributes->next());
+
+        while(!attribute.isNull())
+        {
+            Q_ASSERT(attribute.kind() == QXmlNodeModelIndex::Attribute);
+
+            if(attribute.name() == xmlLang)
+            {
+                if(isLangMatch(attribute.stringValue(), lang))
+                    return CommonValues::BooleanTrue;
+                else
+                    return CommonValues::BooleanFalse;
+            }
+
+            attribute = attributes->next();
+        }
+
+        ancestor = ancestors->next();
+    }
+
+    return CommonValues::BooleanFalse;
+}
+
+Item RootFN::evaluateSingleton(const DynamicContext::Ptr &context) const
+{
+    const Item arg(m_operands.first()->evaluateSingleton(context));
+
+    if(arg)
+        return arg.asNode().root();
+    else
+        return Item();
+}
+
+SequenceType::Ptr RootFN::staticType() const
+{
+    if(m_operands.isEmpty())
+        return makeGenericSequenceType(BuiltinTypes::node, Cardinality::exactlyOne());
+    else
+        return makeGenericSequenceType(BuiltinTypes::node, m_operands.first()->staticType()->cardinality().toWithoutMany());
+}
+
+QT_END_NAMESPACE