Here you can find the source of zeroOrMore(String... patterns)
public static String zeroOrMore(String... patterns)
//package com.java2s; /*************************************************************************** * Copyright 2012 by/*from ww w . j a va 2 s . c om*/ * + Christian-Albrechts-University of Kiel * + Department of Computer Science * + Software Engineering Group * and others. * * 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. ***************************************************************************/ public class Main { public static String zeroOrMore(String... patterns) { return _group("*", patterns); } static String _group(String multiplicity, String... patterns) { StringBuilder builder = new StringBuilder(); builder.append('('); for (String p : patterns) { builder.append(p); } builder.append(')'); builder.append(multiplicity); return builder.toString(); } }