/**************************************************************************** | |
** | |
** Copyright (C) 2011 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. | |
** | |
** $QT_BEGIN_LICENSE:LGPL$ | |
** GNU Lesser General Public License Usage | |
** 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 | |
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** 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. | |
** | |
** 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. | |
** | |
** Other Usage | |
** Alternatively, this file may be used in accordance with the terms and | |
** conditions contained in a signed written agreement between you and Nokia. | |
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** $QT_END_LICENSE$ | |
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****************************************************************************/ | |
#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 |