Functions.java

/*
* Copyright 2004 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*     http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jsp2.examples.el;

import java.util.*;

/**
 * Defines the functions for the jsp2 example tag library.
 * 
 * <p>Each function is defined as a static method.</p>
 */
public class Functions {
    public static String reverse( String text ) {
        return new StringBuffer( text ).reverse().toString();
    }

    public static int numVowels( String text ) {
        String vowels = "aeiouAEIOU";
	int result = 0;
        for( int i = 0; i < text.length(); i++ ) {
	    if( vowels.indexOf( text.charAt( i ) ) != -1 ) {
	        result++;
	    }
	}
	return result;
    }

    public static String caps( String text ) {
        return text.toUpperCase();
    }
}