1 files changed, 114 insertions, 0 deletions
diff --git a/src/xmlpatterns/expr/qsimplecontentconstructor.cpp b/src/xmlpatterns/expr/qsimplecontentconstructor.cpp
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+++ b/src/xmlpatterns/expr/qsimplecontentconstructor.cpp
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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 "qatomicstring_p.h"
+
+#include "qsimplecontentconstructor_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+SimpleContentConstructor::SimpleContentConstructor(const Expression::Ptr &operand) : SingleContainer(operand)
+{
+}
+
+Item SimpleContentConstructor::evaluateSingleton(const DynamicContext::Ptr &context) const
+{
+    const Item::Iterator::Ptr it(m_operand->evaluateSequence(context));
+    Item next(it->next());
+    QString result;
+
+    if(next)
+    {
+        result = next.stringValue();
+        next = it->next();
+    }
+    else
+        return Item();
+
+    while(next)
+    {
+        result += QLatin1Char(' ');
+        result += next.stringValue();
+        next = it->next();
+    }
+
+    return AtomicString::fromValue(result);
+}
+
+Expression::Ptr SimpleContentConstructor::compress(const StaticContext::Ptr &context)
+{
+    const Expression::Ptr me(SingleContainer::compress(context));
+
+    if(me.data() == this)
+    {
+        /* Optimization: if we will evaluate to a single string, we're not
+         * necessary. */
+        if(CommonSequenceTypes::ExactlyOneString->matches(m_operand->staticType()))
+            return m_operand;
+    }
+
+    return me;
+}
+
+SequenceType::List SimpleContentConstructor::expectedOperandTypes() const
+{
+    SequenceType::List result;
+    result.append(CommonSequenceTypes::ZeroOrMoreAtomicTypes);
+    return result;
+}
+
+SequenceType::Ptr SimpleContentConstructor::staticType() const
+{
+    if(m_operand->staticType()->cardinality().allowsEmpty())
+        return CommonSequenceTypes::ZeroOrOneString;
+    else
+        return CommonSequenceTypes::ExactlyOneString;
+}
+
+ExpressionVisitorResult::Ptr SimpleContentConstructor::accept(const ExpressionVisitor::Ptr &visitor) const
+{
+    return visitor->visit(this);
+}
+
+QT_END_NAMESPACE