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# highlighter.h Example File
richtext/syntaxhighlighter/highlighter.h

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        **
        ** This file is part of the documentation of the Qt Toolkit.
        **
        ** This file may be distributed and/or modified under the terms of the
    ** GNU General Public License version 2 as published by the Free Software
    ** Foundation and appearing in the file LICENSE.GPL included in the
    ** packaging of this file.
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    ** information about Qt Commercial License Agreements.
    ** See http://www.trolltech.com/gpl/ for GPL licensing information.
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        #ifndef HIGHLIGHTER_H
        #define HIGHLIGHTER_H

        #include <QHash>
        #include <QString>
        #include <QStringList>
        #include <QTextBlock>
        #include <QTextCharFormat>

        class QTextDocument;

        class Highlighter : public QObject
        {
            Q_OBJECT
        public:
            Highlighter(QObject *parent = 0);

            void addToDocument(QTextDocument *doc);
            void addMapping(const QString &pattern, const QTextCharFormat &format);

        private slots:
            void highlight(int from, int removed, int added);

        private:
            void highlightBlock(QTextBlock block);

            QHash<QString,QTextCharFormat> mappings;
        };

        #endif