1 /* 2 * Copyright (c) 1998, 2014, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package sun.tools.util; 27 28 import java.io.IOException; 29 import java.io.Reader; 30 import java.io.FileReader; 31 import java.io.BufferedReader; 32 import java.io.StreamTokenizer; 33 import java.util.List; 34 import java.util.ArrayList; 35 36 /** 37 * Various utility methods for processing Java tool command line arguments. 38 * 39 * WARNING: The contents of this source file are not part of any 40 * supported API. Code that depends on them does so at its own risk: 41 * they are subject to change or removal without notice. 42 */ 43 public class CommandLine { 44 /** 45 * Process Win32-style command files for the specified command line 46 * arguments and return the resulting arguments. A command file argument 47 * is of the form '@file' where 'file' is the name of the file whose 48 * contents are to be parsed for additional arguments. The contents of 49 * the command file are parsed using StreamTokenizer and the original 50 * '@file' argument replaced with the resulting tokens. Recursive command 51 * files are not supported. The '@' character itself can be quoted with 52 * the sequence '@@'. 53 */ 54 public static String[] parse(String[] args) 55 throws IOException 56 { 57 ArrayList newArgs = new ArrayList(args.length); 58 for (int i = 0; i < args.length; i++) { 59 String arg = args[i]; 60 if (arg.length() > 1 && arg.charAt(0) == '@') { 61 arg = arg.substring(1); 62 if (arg.charAt(0) == '@') { 63 newArgs.add(arg); 64 } else { 65 loadCmdFile(arg, newArgs); 66 } 67 } else { 68 newArgs.add(arg); 69 } 70 } 71 return (String[])newArgs.toArray(new String[newArgs.size()]); 72 } 73 74 private static void loadCmdFile(String name, List args) 75 throws IOException 76 { 77 Reader r = new BufferedReader(new FileReader(name)); 78 StreamTokenizer st = new StreamTokenizer(r); 79 st.resetSyntax(); 80 st.wordChars(' ', 255); 81 st.whitespaceChars(0, ' '); 82 st.commentChar('#'); 83 st.quoteChar('"'); 84 st.quoteChar('\''); 85 while (st.nextToken() != StreamTokenizer.TT_EOF) { 86 args.add(st.sval); 87 } 88 r.close(); 89 } 90 }