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

    /****************************************************************************
    **
    ** Copyright (C) 2005-2006 Trolltech ASA. All rights reserved.
    **
    ** This file is part of the example classes of the Qt Toolkit.
    **
    ** Licensees holding valid Qt Preview licenses may use this file in
    ** accordance with the Qt Preview License Agreement provided with the
    ** Software.
    **
    ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
    ** information about Qt Commercial License Agreements.
    **
    ** Contact info@trolltech.com if any conditions of this licensing are
    ** not clear to you.
    **
    ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
    ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
    **
    ****************************************************************************/

    #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