Copyright (c) 2000, 2006 IBM Corporation and others.
This program and the accompanying materials
are made available under the terms of the Eclipse Public License 2.0
which accompanies this distribution, and is available at
https://www.eclipse.org/legal/epl-2.0/
SPDX-License-Identifier: EPL-2.0
Contributors:
    IBM Corporation - initial API and implementation
/*******************************************************************************
 * Copyright (c) 2000, 2006 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.text.edits;

import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.IDocument;

A CopyingRangeMarker can be used to track positions when executing
text edits. Additionally a copying range marker stores a local copy of the
text it captures when it gets executed.
Since:
3.0/**
 * A <code>CopyingRangeMarker</code> can be used to track positions when executing
 * text edits. Additionally a copying range marker stores a local copy of the
 * text it captures when it gets executed.
 *
 * @since 3.0
 */
public final class CopyingRangeMarker extends TextEdit {

	private String fText;

	
Creates a new CopyRangeMarker for the given
offset and length.
Params:
offset – the marker's offset
length – the marker's length/**
	 * Creates a new <code>CopyRangeMarker</code> for the given
	 * offset and length.
	 *
	 * @param offset the marker's offset
	 * @param length the marker's length
	 */
	public CopyingRangeMarker(int offset, int length) {
		super(offset, length);
	}

	/*
	 * Copy constructor
	 */
	private CopyingRangeMarker(CopyingRangeMarker other) {
		super(other);
		fText= other.fText;
	}

	@Override
	protected TextEdit doCopy() {
		return new CopyingRangeMarker(this);
	}

	@Override
	protected void accept0(TextEditVisitor visitor) {
		boolean visitChildren= visitor.visit(this);
		if (visitChildren) {
			acceptChildren(visitor);
		}
	}

	@Override
	int performDocumentUpdating(IDocument document) throws BadLocationException {
		fText= document.get(getOffset(), getLength());
		fDelta= 0;
		return fDelta;
	}

	@Override
	boolean deleteChildren() {
		return false;
	}
}