/*
 * The MIT License (MIT)

 * Copyright (c) 2015 Dmitry Ivanov

 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 *  The above copyright notice and this permission notice shall be included in
 *  all copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 *  THE SOFTWARE.
 */
#ifndef BASIC_XML_SYNTAX_HIGHLIGHTER_H
#define BASIC_XML_SYNTAX_HIGHLIGHTER_H

#include <QRegularExpression>
#include <QSyntaxHighlighter>
#include <QTextEdit>

class BasicXMLSyntaxHighlighter : public QSyntaxHighlighter {
    Q_OBJECT
public:
    BasicXMLSyntaxHighlighter(QObject *parent);
    BasicXMLSyntaxHighlighter(QTextDocument *parent);
    BasicXMLSyntaxHighlighter(QTextEdit *parent);

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

private:
    void highlightByRegex(const QTextCharFormat &format, const QRegularExpression &regex, const QString &text);

    void setRegexes();
    void setFormats();

private:
    QTextCharFormat m_xmlKeywordFormat;
    QTextCharFormat m_xmlElementFormat;
    QTextCharFormat m_xmlAttributeFormat;
    QTextCharFormat m_xmlValueFormat;
    QTextCharFormat m_xmlCommentFormat;
    QTextCharFormat m_xmlRegularTextFormat;

    QList<QRegularExpression> m_xmlKeywordRegexes;
    QRegularExpression        m_xmlElementRegex;
    QRegularExpression        m_xmlAttributeRegex;
    QRegularExpression        m_xmlValueRegex;
    QRegularExpression        m_xmlCommentRegex;
    QRegularExpression        m_xmlRegularTextRegex;
};

#endif // BASIC_XML_SYNTAX_HIGHLIGHTER_H
