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package org.pkl.thirdparty.commonmark.internal;

import org.pkl.thirdparty.commonmark.node.Text;
import org.pkl.thirdparty.commonmark.parser.beta.Position;

/**
 * Opening bracket for links ({@code [}), images ({@code ![}), or links with other markers.
 */
public class Bracket {

    /**
     * The node of a marker such as {@code !} if present, null otherwise.
     */
    public final Text markerNode;

    /**
     * The position of the marker if present, null otherwise.
     */
    public final Position markerPosition;

    /**
     * The node of {@code [}.
     */
    public final Text bracketNode;

    /**
     * The position of {@code [}.
     */
    public final Position bracketPosition;

    /**
     * The position of the content (after the opening bracket)
     */
    public final Position contentPosition;

    /**
     * Previous bracket.
     */
    public final Bracket previous;

    /**
     * Previous delimiter (emphasis, etc) before this bracket.
     */
    public final Delimiter previousDelimiter;

    /**
     * Whether this bracket is allowed to form a link/image (also known as "active").
     */
    public boolean allowed = true;

    /**
     * Whether there is an unescaped bracket (opening or closing) after this opening bracket in the text parsed so far.
     */
    public boolean bracketAfter = false;

    static public Bracket link(Text bracketNode, Position bracketPosition, Position contentPosition, Bracket previous, Delimiter previousDelimiter) {
        return new Bracket(null, null, bracketNode, bracketPosition, contentPosition, previous, previousDelimiter);
    }

    static public Bracket withMarker(Text markerNode, Position markerPosition, Text bracketNode, Position bracketPosition, Position contentPosition, Bracket previous, Delimiter previousDelimiter) {
        return new Bracket(markerNode, markerPosition, bracketNode, bracketPosition, contentPosition, previous, previousDelimiter);
    }

    private Bracket(Text markerNode, Position markerPosition, Text bracketNode, Position bracketPosition, Position contentPosition, Bracket previous, Delimiter previousDelimiter) {
        this.markerNode = markerNode;
        this.markerPosition = markerPosition;
        this.bracketNode = bracketNode;
        this.bracketPosition = bracketPosition;
        this.contentPosition = contentPosition;
        this.previous = previous;
        this.previousDelimiter = previousDelimiter;
    }
}