com.vladsch.flexmark.ast.util.AnchorRefTargetBlockVisitor Maven / Gradle / Ivy

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Core of flexmark-java (implementation of CommonMark for parsing markdown and rendering to HTML)

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package com.vladsch.flexmark.ast.util;

import com.vladsch.flexmark.ast.AnchorRefTarget;
import com.vladsch.flexmark.util.ast.Block;
import com.vladsch.flexmark.util.ast.Node;
import com.vladsch.flexmark.util.ast.NodeVisitorBase;
import org.jetbrains.annotations.NotNull;

/**
 * Abstract visitor that visits only children of blocks excluding Paragraphs
 * 
 * Can be used to only process block nodes efficiently skipping text. If you override a method and want visiting to descend into children,
 * call {@link #visitChildren}.
 */
public abstract class AnchorRefTargetBlockVisitor extends NodeVisitorBase {
    protected abstract void visit(AnchorRefTarget node);
    
    protected boolean preVisit(@NotNull Node node) {
        return true;
    }
    
    public void visit(@NotNull Node node) {
        if (node instanceof AnchorRefTarget) visit((AnchorRefTarget) node);
        
        if (preVisit(node) && node instanceof Block) {
            visitChildren(node);
        }
    }
}