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** Copyright (C) 2016 The Qt Company Ltd.
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** GNU General Public License Usage
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** General Public License version 3 as published by the Free Software
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#pragma once

#include <qmljs/qmljs_global.h>
#include <qmljs/qmljslineinfo.h>

#include <QRegularExpression>

QT_FORWARD_DECLARE_CLASS(QTextBlock)

namespace QmlJS {

class QMLJS_EXPORT QmlJSIndenter : public LineInfo
{
    Q_DISABLE_COPY(QmlJSIndenter)

public:
    QmlJSIndenter();
    ~QmlJSIndenter();

    void setTabSize(int size);
    void setIndentSize(int size);

    int indentForBottomLine(QTextBlock firstBlock, QTextBlock lastBlock, QChar typedIn);

private:
    bool isOnlyWhiteSpace(const QString &t) const;
    int columnForIndex(const QString &t, int index) const;
    int indentOfLine(const QString &t) const;

    void eraseChar(QString &t, int k, QChar ch) const;
    QChar lastParen() const;
    bool okay(QChar typedIn, QChar okayCh) const;

    int indentWhenBottomLineStartsInMultiLineComment();
    int indentForContinuationLine();
    int indentForStandaloneLine();

private:
    int ppHardwareTabSize;
    int ppIndentSize;
    int ppContinuationIndentSize;
    int ppCommentOffset;

private:
    QRegularExpression caseOrDefault;
};

} // namespace QmlJS
