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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