001    /*
002    * Licensed to the Apache Software Foundation (ASF) under one or more
003    * contributor license agreements.  See the NOTICE file distributed with
004    * this work for additional information regarding copyright ownership.
005    * The ASF licenses this file to You under the Apache License, Version 2.0
006    * (the "License"); you may not use this file except in compliance with
007    * the License.  You may obtain a copy of the License at
008    *
009    *     http://www.apache.org/licenses/LICENSE-2.0
010    *
011    * Unless required by applicable law or agreed to in writing, software
012    * distributed under the License is distributed on an "AS IS" BASIS,
013    * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014    * See the License for the specific language governing permissions and
015    * limitations under the License.
016    */
017    package jsp2.examples.el;
018    
019    /**
020     * Defines the functions for the jsp2 example tag library.
021     * <p/>
022     * <p>Each function is defined as a static method.</p>
023     */
024    public class Functions {
025        public static String reverse(String text) {
026            return new StringBuffer(text).reverse().toString();
027        }
028    
029        public static int numVowels(String text) {
030            String vowels = "aeiouAEIOU";
031            int result = 0;
032            for (int i = 0; i < text.length(); i++) {
033                if (vowels.indexOf(text.charAt(i)) != -1) {
034                    result++;
035                }
036            }
037            return result;
038        }
039    
040        public static String caps(String text) {
041            return text.toUpperCase();
042        }
043    }