001 package org.apache.myfaces.tobago.util;
002
003 /*
004 * Licensed to the Apache Software Foundation (ASF) under one or more
005 * contributor license agreements. See the NOTICE file distributed with
006 * this work for additional information regarding copyright ownership.
007 * The ASF licenses this file to You under the Apache License, Version 2.0
008 * (the "License"); you may not use this file except in compliance with
009 * the License. You may obtain a copy of the License at
010 *
011 * http://www.apache.org/licenses/LICENSE-2.0
012 *
013 * Unless required by applicable law or agreed to in writing, software
014 * distributed under the License is distributed on an "AS IS" BASIS,
015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
016 * See the License for the specific language governing permissions and
017 * limitations under the License.
018 */
019
020 /*
021 * Created 29.03.2004 at 14:58:11.
022 * $Id: RangeParser.java 578592 2007-09-23 18:51:32Z bommel $
023 */
024
025 import java.util.ArrayList;
026 import java.util.List;
027 import java.util.StringTokenizer;
028
029 public class RangeParser {
030
031 public static int[] getIndices(String list) {
032 List indexList = new ArrayList();
033 StringTokenizer st = new StringTokenizer(list, ",");
034 while (st.hasMoreTokens()) {
035 String token = st.nextToken().trim();
036 int idx = token.indexOf('-');
037 if (idx == -1) {
038 indexList.add(token);
039 } else {
040 int start = Integer.parseInt(token.substring(0, idx).trim());
041 int end = Integer.parseInt(token.substring(idx + 1).trim());
042 if (start < end) {
043 for (int i = start; i < end + 1; i++) {
044 indexList.add(Integer.toString(i));
045 }
046 } else {
047 for (int i = start; i > end - 1; i--) {
048 indexList.add(Integer.toString(i));
049 }
050 }
051 }
052 }
053
054 int[] indices = new int[indexList.size()];
055 for (int i = 0; i < indices.length; i++) {
056 indices[i] = Integer.parseInt((String) indexList.get(i));
057 }
058 return indices;
059 }
060 }