| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 1999 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, if |
| * any, must include the following acknowlegement: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowlegement may appear in the software itself, |
| * if and wherever such third-party acknowlegements normally appear. |
| * |
| * 4. The names "The Jakarta Project", "Ant", and "Apache Software |
| * Foundation" must not be used to endorse or promote products derived |
| * from this software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache" |
| * nor may "Apache" appear in their names without prior written |
| * permission of the Apache Group. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| package org.apache.tools.ant; |
| |
| import java.util.*; |
| import java.io.*; |
| |
| /** |
| * A Path tokenizer takes a path and returns the components that make up |
| * that path. |
| * |
| * The path can use path separators of either ':' or ';' and file separators |
| * of either '/' or '\' |
| * |
| * @author Conor MacNeill (conor@ieee.org) |
| * |
| */ |
| public class PathTokenizer { |
| /** |
| * A tokenizer to break the string up based on the ':' or ';' separators. |
| */ |
| private StringTokenizer tokenizer; |
| |
| /** |
| * A String which stores any path components which have been read ahead. |
| */ |
| private String lookahead = null; |
| |
| /** |
| * Flag to indicate whether we are running on a platform with a DOS style |
| * filesystem |
| */ |
| private boolean dosStyleFilesystem; |
| |
| public PathTokenizer(String path) { |
| tokenizer = new StringTokenizer(path, ":;", false); |
| dosStyleFilesystem = File.pathSeparatorChar == ';'; |
| } |
| |
| public boolean hasMoreTokens() { |
| if (lookahead != null) { |
| return true; |
| } |
| |
| return tokenizer.hasMoreTokens(); |
| } |
| |
| public String nextToken() throws NoSuchElementException { |
| String token = null; |
| if (lookahead != null) { |
| token = lookahead; |
| lookahead = null; |
| } |
| else { |
| token = tokenizer.nextToken().trim(); |
| } |
| |
| if (token.length() == 1 && Character.isLetter(token.charAt(0)) |
| && dosStyleFilesystem |
| && tokenizer.hasMoreTokens()) { |
| // we are on a dos style system so this path could be a drive |
| // spec. We look at the next token |
| String nextToken = tokenizer.nextToken().trim(); |
| if (nextToken.startsWith("\\") || nextToken.startsWith("/")) { |
| // we know we are on a DOS style platform and the next path starts with a |
| // slash or backslash, so we know this is a drive spec |
| token += ":" + nextToken; |
| } |
| else { |
| // store the token just read for next time |
| lookahead = nextToken; |
| } |
| } |
| |
| return token; |
| } |
| } |
| |