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 | } |