91 lines · 3.4 KB · Java
RawDownload
/* * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package sun.tools.jar; import java.io.IOException;import java.io.Reader;import java.io.FileReader;import java.io.BufferedReader;import java.io.StreamTokenizer;import java.util.List;import java.util.ArrayList; /** * Various utility methods for processing Java tool command line arguments. * *  <p><b>This is NOT part of any API supported by Oracle.  If *  you write code that depends on this, you do so at your own risk. *  This code and its internal interfaces are subject to change or *  deletion without notice.</b> */public class CommandLine {    /**     * Process Win32-style command files for the specified command line     * arguments and return the resulting arguments. A command file argument     * is of the form '@file' where 'file' is the name of the file whose     * contents are to be parsed for additional arguments. The contents of     * the command file are parsed using StreamTokenizer and the original     * '@file' argument replaced with the resulting tokens. Recursive command     * files are not supported. The '@' character itself can be quoted with     * the sequence '@@'.     */    public static String[] parse(String[] args)        throws IOException    {        ArrayList newArgs = new ArrayList(args.length);        for (int i = 0; i < args.length; i++) {            String arg = args[i];            if (arg.length() > 1 && arg.charAt(0) == '@') {                arg = arg.substring(1);                if (arg.charAt(0) == '@') {                    newArgs.add(arg);                } else {                    loadCmdFile(arg, newArgs);                }            } else {                newArgs.add(arg);            }        }        return (String[])newArgs.toArray(new String[newArgs.size()]);    }     private static void loadCmdFile(String name, List args)        throws IOException    {        Reader r = new BufferedReader(new FileReader(name));        StreamTokenizer st = new StreamTokenizer(r);        st.resetSyntax();        st.wordChars(' ', 255);        st.whitespaceChars(0, ' ');        st.commentChar('#');        st.quoteChar('"');        st.quoteChar('\'');        while (st.nextToken() != st.TT_EOF) {            args.add(st.sval);        }        r.close();    }}