FairEmail/app/src/main/java/io/github/novacrypto/bip39/AlphabeticalCharSequenceCom...

42 lines
1.5 KiB
Java

/*
* BIP39 library, a Java implementation of BIP39
* Copyright (C) 2017-2019 Alan Evans, NovaCrypto
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
* Original source: https://github.com/NovaCrypto/BIP39
* You can contact the authors via github issues.
*/
package io.github.novacrypto.bip39;
import java.util.Comparator;
enum CharSequenceComparators implements Comparator<CharSequence> {
ALPHABETICAL {
@Override
public int compare(final CharSequence o1, final CharSequence o2) {
final int length1 = o1.length();
final int length2 = o2.length();
final int length = Math.min(length1, length2);
for (int i = 0; i < length; i++) {
final int compare = Character.compare(o1.charAt(i), o2.charAt(i));
if (compare != 0) return compare;
}
return Integer.compare(length1, length2);
}
}
}