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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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt API. It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef Patternist_DeduplicateIterator_H
+#define Patternist_DeduplicateIterator_H
+
+#include <QList>
+
+#include "qexpression_p.h"
+#include "qitem_p.h"
+#include "qatomiccomparator_p.h"
+#include "qcomparisonplatform_p.h"
+#include "qsourcelocationreflection_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+namespace QPatternist
+{
+
+ /**
+ * @short Performs deduplication of the nodes on its source list.
+ *
+ * @note The nodes in the source list must be in document order.
+ *
+ * @author Frans Englich <fenglich@trolltech.com>
+ * @ingroup Patternist_iterators
+ */
+ class DeduplicateIterator : public ListIterator<Item>
+ {
+ public:
+ DeduplicateIterator(const Item::List &source);
+
+ virtual Item next();
+ virtual Item::Iterator::Ptr copy() const;
+ virtual xsInteger count();
+
+ private:
+ /**
+ * m_position in ListIteratorPlatform is the position that we
+ * show to the outside through position) but do not correspond
+ * to the position in m_list, since we skip entries in that one.
+ *
+ * However, this guy, m_listPos, is the position into m_list.
+ */
+ int m_listPos;
+ };
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif