--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/xmlpatterns/functions/qnodefns.cpp Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,209 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** 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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@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