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}