| 1 | /* |
| 2 | * Copyright 1999-2005 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package com.sun.tools.javac.main; |
| 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 com.sun.tools.javac.util.ListBuffer; |
| 34 | |
| 35 | /** |
| 36 | * Various utility methods for processing Java tool command line arguments. |
| 37 | * |
| 38 | * <p><b>This is NOT part of any API supported by Sun Microsystems. If |
| 39 | * you write code that depends on this, you do so at your own risk. |
| 40 | * This code and its internal interfaces are subject to change or |
| 41 | * deletion without notice.</b> |
| 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 | ListBuffer<String> newArgs = new ListBuffer<String>(); |
| 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.append(arg); |
| 64 | } else { |
| 65 | loadCmdFile(arg, newArgs); |
| 66 | } |
| 67 | } else { |
| 68 | newArgs.append(arg); |
| 69 | } |
| 70 | } |
| 71 | return newArgs.toList().toArray(new String[newArgs.length()]); |
| 72 | } |
| 73 | |
| 74 | private static void loadCmdFile(String name, ListBuffer<String> 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() != st.TT_EOF) { |
| 86 | args.append(st.sval); |
| 87 | } |
| 88 | r.close(); |
| 89 | } |
| 90 | } |