Java tutorial
/* * Copyright 2013-2016 the original author or authors. * * 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 gov.nyc.doitt.gis.geoclient.parser.regex; import java.util.Collection; import org.springframework.util.Assert; public class PatternUtils { public static String literalMatchGroup(Collection<String> strings) { Assert.notEmpty(strings, "Collection of strings argument cannot be empty or null"); StringBuffer buff = new StringBuffer("("); for (String s : strings) { buff.append(s); buff.append("|"); } buff.deleteCharAt(buff.lastIndexOf("|")); buff.append(")"); return buff.toString(); } }