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

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        ** Copyright (C) 2005-2006 Trolltech AS. All rights reserved.
        **
        ** This file is part of the documentation of the Qt Toolkit.
        **
        ** This file may be used under the terms of the GNU General Public
        ** License version 2.0 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 GNU
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        ** http://www.trolltech.com/products/qt/opensource.html
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        #ifndef HIGHLIGHTER_H
        #define HIGHLIGHTER_H

        #include <QSyntaxHighlighter>

        #include <QHash>
        #include <QTextCharFormat>

        class QTextDocument;

        class Highlighter : public QSyntaxHighlighter
        {
            Q_OBJECT

        public:
            Highlighter(QTextDocument *parent = 0);

        protected:
            void highlightBlock(const QString &text);

        private:
            struct HighlightingRule
            {
                QRegExp pattern;
                QTextCharFormat format;
            };
            QVector<HighlightingRule> highlightingRules;

            QRegExp commentStartExpression;
            QRegExp commentEndExpression;

            QTextCharFormat keywordFormat;
            QTextCharFormat classFormat;
            QTextCharFormat singleLineCommentFormat;
            QTextCharFormat multiLineCommentFormat;
            QTextCharFormat quotationFormat;
            QTextCharFormat functionFormat;
        };

        #endif