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diff --git a/tools/assistant/compat/index.h b/tools/assistant/compat/index.h
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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 Qt Assistant 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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef INDEX_H
+#define INDEX_H
+
+#include <QStringList>
+#include <QHash>
+#include <QDataStream>
+#include <QObject>
+#include <QList>
+#include <QFile>
+#include <QVector>
+
+QT_BEGIN_NAMESPACE
+
+struct Document {
+    Document( int d, int f ) : docNumber( d ), frequency( f ) {}
+    Document() : docNumber( -1 ), frequency( 0 ) {}
+    bool operator==( const Document &doc ) const {
+	return docNumber == doc.docNumber;
+    }
+    bool operator<( const Document &doc ) const {
+	return frequency > doc.frequency;
+    }
+    bool operator<=( const Document &doc ) const {
+	return frequency >= doc.frequency;
+    }
+    bool operator>( const Document &doc ) const {
+	return frequency < doc.frequency;
+    }
+    qint16 docNumber;
+    qint16 frequency;
+};
+
+QDataStream &operator>>( QDataStream &s, Document &l );
+QDataStream &operator<<( QDataStream &s, const Document &l );
+
+class Index : public QObject
+{
+    Q_OBJECT
+public:
+    struct Entry {
+	    Entry( int d ) { documents.append( Document( d, 1 ) ); }
+	    Entry( QVector<Document> l ) : documents( l ) {}
+	    QVector<Document> documents;
+    };
+    struct PosEntry {
+	    PosEntry( int p ) { positions.append( p ); }
+	    QList<uint> positions;
+    };
+
+    Index( const QString &dp, const QString &hp );
+    Index( const QStringList &dl, const QString &hp );
+    void writeDict();
+    void readDict();
+    int makeIndex();
+    QStringList query( const QStringList&, const QStringList&, const QStringList& );
+    QString getDocumentTitle( const QString& );
+    void setDictionaryFile( const QString& );
+    void setDocListFile( const QString& );
+    void setDocList( const QStringList & );
+
+signals:
+    void indexingProgress( int );
+
+private slots:
+    void setLastWinClosed();
+
+private:
+    void setupDocumentList();
+    void parseDocument( const QString&, int );
+    void insertInDict( const QString&, int );
+    void writeDocumentList();
+    void readDocumentList();
+    QStringList getWildcardTerms( const QString& );
+    QStringList split( const QString& );
+    QVector<Document> setupDummyTerm( const QStringList& );
+    bool searchForPattern( const QStringList&, const QStringList&, const QString& );
+    void buildMiniDict( const QString& );
+    QString getCharsetForDocument(QFile *);
+    QStringList docList;
+    QHash<QString, Entry*> dict;
+    QHash<QString, PosEntry*> miniDict;
+    uint wordNum;
+    QString docPath;
+    QString dictFile, docListFile;
+    bool alreadyHaveDocList;
+    bool lastWindowClosed;
+    QHash<QString, QString> documentTitleCache;
+};
+
+#endif
+
+QT_END_NAMESPACE