| /******************************************************************************* |
| * Copyright (c) 2000, 2013 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ui.externaltools.internal.launchConfigurations; |
| |
| import java.util.Comparator; |
| |
| public class IgnoreWhiteSpaceComparator implements Comparator<String> { |
| |
| @Override |
| public int compare(String o1, String o2) { |
| if (o1 == null || o2 == null) { |
| if (o1 == o2) { |
| return 0; |
| } |
| return -1; |
| } |
| int i1 = 0; |
| int i2 = 0; |
| int l1 = o1.length(); |
| int l2 = o2.length(); |
| char ch1 = ' '; |
| char ch2 = ' '; |
| while (i1 < l1 && i2 < l2) { |
| while (i1 < l1 && Character.isWhitespace(ch1 = o1.charAt(i1))) { |
| i1++; |
| } |
| while (i2 < l2 && Character.isWhitespace(ch2 = o2.charAt(i2))) { |
| i2++; |
| } |
| if (i1 == l1 && i2 == l2) { |
| return 0; |
| } |
| if (ch1 != ch2) { |
| return -1; |
| } |
| i1++; |
| i2++; |
| } |
| return 0; |
| } |
| } |
