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// SPDX-License-Identifier: GPL-2.0+
/*******************************************************************************
 * QtMips - MIPS 32-bit Architecture Subset Simulator
 *
 * Implemented to support following courses:
 *
 *   B35APO - Computer Architectures
 *   https://cw.fel.cvut.cz/wiki/courses/b35apo
 *
 *   B4M35PAP - Advanced Computer Architectures
 *   https://cw.fel.cvut.cz/wiki/courses/b4m35pap/start
 *
 * Copyright (c) 2017-2019 Karel Koci<cynerd@email.cz>
 * Copyright (c) 2019      Pavel Pisa <pisa@cmp.felk.cvut.cz>
 *
 * Faculty of Electrical Engineering (http://www.fel.cvut.cz)
 * Czech Technical University        (http://www.cvut.cz/)
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA  02110-1301, USA.
 *
 ******************************************************************************/
/* Based on Qt example released under BSD license */

#ifndef HIGHLIGHTER_H
#define HIGHLIGHTER_H

#include <QSyntaxHighlighter>
#include <QTextCharFormat>
#include <QRegularExpression>

QT_BEGIN_NAMESPACE
class QTextDocument;
QT_END_NAMESPACE

//! [0]
class Highlighter : public QSyntaxHighlighter
{
    Q_OBJECT

public:
    Highlighter(QTextDocument *parent = 0);

protected:
    void highlightBlock(const QString &text) override;

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

    QRegularExpression commentStartExpression;
    QRegularExpression commentEndExpression;

    QTextCharFormat keywordFormat;
    QTextCharFormat registerFormat;
    QTextCharFormat singleLineCommentFormat;
    QTextCharFormat multiLineCommentFormat;
    QTextCharFormat quotationFormat;
    QTextCharFormat functionFormat;
};
//! [0]

#endif // HIGHLIGHTER_H