org.minidns.dnslabel.LeadingOrTrailingHyphenLabel Maven / Gradle / Ivy
/*
* Copyright 2015-2020 the original author or authors
*
* This software is licensed under the Apache License, Version 2.0,
* the GNU Lesser General Public License version 2 or later ("LGPL")
* and the WTFPL.
* You may choose either license to govern your use of this software only
* upon the condition that you accept all of the terms of either
* the Apache License 2.0, the LGPL 2.1+ or the WTFPL.
*/
package org.minidns.dnslabel;
/**
* A DNS label with a leading or trailing hyphen ('-').
*/
public final class LeadingOrTrailingHyphenLabel extends NonLdhLabel {
protected LeadingOrTrailingHyphenLabel(String label) {
super(label);
}
protected static boolean isLeadingOrTrailingHypenLabelInternal(String label) {
if (label.isEmpty()) {
return false;
}
if (label.charAt(0) == '-') {
return true;
}
if (label.charAt(label.length() - 1) == '-') {
return true;
}
return false;
}
}