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With inspiration from other libraries

There is a newer version: 2.12.15

/*
 * Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
 * Use of this file is governed by the BSD 3-clause license that
 * can be found in the LICENSE.txt file in the project root.
 */
package org.antlr.v4.runtime;

/**
 *
 * @author Sam Harwell
 */
public class ConsoleErrorListener extends BaseErrorListener {
	/**
	 * Provides a default instance of {@link ConsoleErrorListener}.
	 */
	public static final ConsoleErrorListener INSTANCE = new ConsoleErrorListener();

	/**
	 * {@inheritDoc}
	 *
	 * 
	 * This implementation prints messages to {@link System#err} containing the
	 * values of {@code line}, {@code charPositionInLine}, and {@code msg} using
	 * the following format.
	 *
	 * 	 * line line:charPositionInLine msg
	 * 
	 */
	@Override
	public void syntaxError(Recognizer recognizer,
							Object offendingSymbol,
							int line,
							int charPositionInLine,
							String msg,
							RecognitionException e)
	{
		System.err.println("line " + line + ":" + charPositionInLine + " " + msg);
	}

}