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diff --git a/src/assistant/lib/fulltextsearch/qsearchable_p.h b/src/assistant/lib/fulltextsearch/qsearchable_p.h
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+/****************************************************************************
+**
+** Copyright (C) 2003-2006 Ben van Klinken and the CLucene Team.
+** All rights reserved.
+**
+** Portion Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+**
+** 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.
+**
+****************************************************************************/
+
+#ifndef QSEARCHABLE_P_H
+#define QSEARCHABLE_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API. It exists for the convenience
+// of the help generator tools. This header file may change from version
+// to version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qhits_p.h"
+#include "qsort_p.h"
+#include "qquery_p.h"
+#include "qfilter_p.h"
+#include "qdocument_p.h"
+#include "qindexreader_p.h"
+#include "qclucene_global_p.h"
+
+#include <QtCore/QList>
+#include <QtCore/QString>
+#include <QtCore/QSharedDataPointer>
+#include <QtCore/QSharedData>
+
+CL_NS_DEF(search)
+    class Searcher;
+CL_NS_END
+CL_NS_USE(search)
+
+QT_BEGIN_NAMESPACE
+
+class QCLuceneHits;
+class QCLuceneSearcher;
+class QCLuceneIndexSearcher;
+class QCLuceneMultiSearcher;
+
+class QHELP_EXPORT QCLuceneSearchablePrivate : public QSharedData
+{
+public:
+    QCLuceneSearchablePrivate();
+    QCLuceneSearchablePrivate(const QCLuceneSearchablePrivate &other);
+
+    ~QCLuceneSearchablePrivate();
+
+    Searcher *searchable;
+    bool deleteCLuceneSearchable;
+
+private:
+    QCLuceneSearchablePrivate &operator=(const QCLuceneSearchablePrivate &other);
+};
+
+class QHELP_EXPORT QCLuceneSearchable
+{
+public:
+    virtual ~QCLuceneSearchable();
+
+protected:
+    friend class QCLuceneSearcher;
+    friend class QCLuceneIndexSearcher;
+    friend class QCLuceneMultiSearcher;
+    QSharedDataPointer<QCLuceneSearchablePrivate> d;
+
+private:
+    QCLuceneSearchable();
+};
+
+class QHELP_EXPORT QCLuceneSearcher : public QCLuceneSearchable
+{
+public:
+    QCLuceneSearcher();
+    virtual ~QCLuceneSearcher();
+
+    QCLuceneHits search(const QCLuceneQuery &query);
+    QCLuceneHits search(const QCLuceneQuery &query, const QCLuceneFilter &filter);
+    QCLuceneHits search(const QCLuceneQuery &query, const QCLuceneSort &sort);
+    QCLuceneHits search(const QCLuceneQuery &query, const QCLuceneFilter &filter, 
+        const QCLuceneSort &sort);
+
+protected:
+    friend class QCLuceneHits;
+};
+
+class QHELP_EXPORT QCLuceneIndexSearcher : public QCLuceneSearcher
+{
+public:
+    QCLuceneIndexSearcher(const QString &path);
+    QCLuceneIndexSearcher(const QCLuceneIndexReader &reader);
+    ~QCLuceneIndexSearcher();
+
+    void close();
+    qint32 maxDoc() const;
+    QCLuceneIndexReader getReader();
+    bool doc(qint32 i, QCLuceneDocument &document);
+
+private:
+    QCLuceneIndexReader reader;
+};
+
+class QHELP_EXPORT QCLuceneMultiSearcher : public QCLuceneSearcher
+{
+public:
+    QCLuceneMultiSearcher(const QList<QCLuceneSearchable> searchables);
+    ~QCLuceneMultiSearcher();
+
+    void close();
+    qint32 maxDoc() const;
+    qint32 subDoc(qint32 index) const;
+    qint32 subSearcher(qint32 index) const;
+    qint32 searcherIndex(qint32 index) const;
+    bool doc(qint32 i, QCLuceneDocument &document);
+};
+
+QT_END_NAMESPACE
+
+#endif  // QSEARCHABLE_P_H