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authorQt by Nokia <qt-info@nokia.com>2011-04-27 12:05:43 +0200
committeraxis <qt-info@nokia.com>2011-04-27 12:05:43 +0200
commite1b2c9deb5943faae2b29be6a5c006f75bb73f06 (patch)
treefc79e45367c0a8fc71185e9afc33f7503a58653c /src/xmlpatterns/expr/qprocessinginstructionconstructor.cpp
downloadqtxmlpatterns-e1b2c9deb5943faae2b29be6a5c006f75bb73f06.tar.gz
Initial import from the monolithic Qt.
This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
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+/****************************************************************************
+**
+** 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 "qcommonsequencetypes_p.h"
+#include "qpatternistlocale_p.h"
+#include "qnodebuilder_p.h"
+#include "qqnamevalue_p.h"
+
+#include "qprocessinginstructionconstructor_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+ProcessingInstructionConstructor::
+ProcessingInstructionConstructor(const Expression::Ptr &op1,
+ const Expression::Ptr &op2) : PairContainer(op1, op2)
+{
+}
+
+QString ProcessingInstructionConstructor::leftTrimmed(const QString &input)
+{
+ const int len = input.length();
+
+ for(int i = 0; i < len; ++i)
+ {
+ if(!input.at(i).isSpace())
+ return input.mid(i);
+ }
+
+ return QString(); /* input consists only of whitespace. All was trimmed. */
+}
+
+QString ProcessingInstructionConstructor::data(const DynamicContext::Ptr &context) const
+{
+ const Item name(m_operand1->evaluateSingleton(context));
+ const Item dataArg(m_operand2->evaluateSingleton(context));
+
+ if(dataArg)
+ {
+ /* Perform trimming before validation, to increase speed. */
+ const QString value(leftTrimmed(dataArg.stringValue()));
+
+ if(value.contains(QLatin1String("?>")))
+ {
+ context->error(QtXmlPatterns::tr("The data of a processing instruction cannot contain the string %1").arg(formatData("?>")),
+ ReportContext::XQDY0026, this);
+ return QString();
+ }
+ else
+ return value;
+ }
+ else
+ return QString();
+}
+
+QXmlName ProcessingInstructionConstructor::evaluateTardata(const DynamicContext::Ptr &context) const
+{
+ const Item name(m_operand1->evaluateSingleton(context));
+ return context->namePool()->allocateQName(QString(), name.stringValue());
+}
+
+Item ProcessingInstructionConstructor::evaluateSingleton(const DynamicContext::Ptr &context) const
+{
+ const NodeBuilder::Ptr nodeBuilder(context->nodeBuilder(QUrl()));
+
+ nodeBuilder->processingInstruction(evaluateTardata(context), data(context));
+
+ const QAbstractXmlNodeModel::Ptr nm(nodeBuilder->builtDocument());
+ context->addNodeModel(nm);
+
+ return nm->root(QXmlNodeModelIndex());
+}
+
+void ProcessingInstructionConstructor::evaluateToSequenceReceiver(const DynamicContext::Ptr &context) const
+{
+ QAbstractXmlReceiver *const receiver = context->outputReceiver();
+
+ receiver->processingInstruction(evaluateTardata(context), data(context));
+}
+
+SequenceType::Ptr ProcessingInstructionConstructor::staticType() const
+{
+ return CommonSequenceTypes::ExactlyOneProcessingInstruction;
+}
+
+SequenceType::List ProcessingInstructionConstructor::expectedOperandTypes() const
+{
+ SequenceType::List result;
+ result.append(CommonSequenceTypes::ExactlyOneString);
+ result.append(CommonSequenceTypes::ZeroOrOneString);
+ return result;
+}
+
+Expression::Properties ProcessingInstructionConstructor::properties() const
+{
+ return DisableElimination | IsNodeConstructor;
+}
+
+ExpressionVisitorResult::Ptr
+ProcessingInstructionConstructor::accept(const ExpressionVisitor::Ptr &visitor) const
+{
+ return visitor->visit(this);
+}
+
+QT_END_NAMESPACE