Java tutorial
//package com.java2s; /* * Copyright (C) 2008 The Android Open Source Project * * 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. */ import java.util.regex.Matcher; import java.util.regex.Pattern; public class Main { /** Regex used to parse content-disposition headers */ private static final Pattern CONTENT_DISPOSITION_PATTERN = Pattern .compile("attachment;\\s*filename\\s*=\\s*\"([^\"]*)\""); private static String parseContentDisposition(String contentDisposition) { try { Matcher m = CONTENT_DISPOSITION_PATTERN.matcher(contentDisposition); if (m.find()) { return m.group(1); } } catch (IllegalStateException ex) { // This function is defined as returning null when it can't parse // the header } return null; } }