Here you can find the source of cleanUpEmailAddress(CharSequence address)
public static String cleanUpEmailAddress(CharSequence address)
//package com.java2s; /**/*from w ww . j ava2s. c om*/ * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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. */ import java.util.regex.Pattern; public class Main { private static final Pattern ADDRESS_CLEANUP = Pattern .compile("mailto:|<|>|\\[|\\]|\\=20"); /** * Strip off some spurious characters that make it harder to dedup */ public static String cleanUpEmailAddress(CharSequence address) { //do some cleanup to normalize some things, like: Key: karthik ananth <karthik.jcecs@gmail.com>: Value: 178 //Key: karthik ananth [mailto:karthik.jcecs@gmail.com]=20: Value: 179 //TODO: is there more to clean up here? return ADDRESS_CLEANUP.matcher(address).replaceAll(""); } }