org.antlr.v4.tool.DefaultToolListener Maven / Gradle / Ivy

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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.tool;

import org.antlr.v4.Tool;
import org.stringtemplate.v4.ST;

/** */
public class DefaultToolListener implements ANTLRToolListener {
	public Tool tool;

	public DefaultToolListener(Tool tool) { this.tool = tool; }

	@Override
	public void info(String msg) {
		if (tool.errMgr.formatWantsSingleLineMessage()) {
			msg = msg.replace('\n', ' ');
		}
		System.out.println(msg);
	}

	@Override
	public void error(ANTLRMessage msg) {
		ST msgST = tool.errMgr.getMessageTemplate(msg);
		String outputMsg = msgST.render();
		if (tool.errMgr.formatWantsSingleLineMessage()) {
			outputMsg = outputMsg.replace('\n', ' ');
		}
		System.err.println(outputMsg);
	}

	@Override
	public void warning(ANTLRMessage msg) {
		ST msgST = tool.errMgr.getMessageTemplate(msg);
		String outputMsg = msgST.render();
		if (tool.errMgr.formatWantsSingleLineMessage()) {
			outputMsg = outputMsg.replace('\n', ' ');
		}
		System.err.println(outputMsg);
	}
}