001/*
002 * Copyright 2015-2020 the original author or authors
003 *
004 * This software is licensed under the Apache License, Version 2.0,
005 * the GNU Lesser General Public License version 2 or later ("LGPL")
006 * and the WTFPL.
007 * You may choose either license to govern your use of this software only
008 * upon the condition that you accept all of the terms of either
009 * the Apache License 2.0, the LGPL 2.1+ or the WTFPL.
010 */
011package org.minidns.dnslabel;
012
013/**
014 * A DNS label which begins with an underscore ('_').
015 *
016 */
017public final class UnderscoreLabel extends NonLdhLabel {
018
019    protected UnderscoreLabel(String label) {
020        super(label);
021    }
022
023    protected static boolean isUnderscoreLabelInternal(String label) {
024        return label.charAt(0) == '_';
025    }
026}