01: /*
02: * Copyright 2003 Sun Microsystems, Inc. All Rights Reserved.
03: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
04: *
05: * This code is free software; you can redistribute it and/or modify it
06: * under the terms of the GNU General Public License version 2 only, as
07: * published by the Free Software Foundation. Sun designates this
08: * particular file as subject to the "Classpath" exception as provided
09: * 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 sun.tools.jar;
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: * <p><b>This is NOT part of any API suppored by Sun Microsystems. If
40: * you write code that depends on this, you do so at your own risk.
41: * This code and its internal interfaces are subject to change or
42: * deletion without notice.</b>
43: */
44: public class CommandLine {
45: /**
46: * Process Win32-style command files for the specified command line
47: * arguments and return the resulting arguments. A command file argument
48: * is of the form '@file' where 'file' is the name of the file whose
49: * contents are to be parsed for additional arguments. The contents of
50: * the command file are parsed using StreamTokenizer and the original
51: * '@file' argument replaced with the resulting tokens. Recursive command
52: * files are not supported. The '@' character itself can be quoted with
53: * the sequence '@@'.
54: */
55: public static String[] parse(String[] args) throws IOException {
56: ArrayList newArgs = new ArrayList(args.length);
57: for (int i = 0; i < args.length; i++) {
58: String arg = args[i];
59: if (arg.length() > 1 && arg.charAt(0) == '@') {
60: arg = arg.substring(1);
61: if (arg.charAt(0) == '@') {
62: newArgs.add(arg);
63: } else {
64: loadCmdFile(arg, newArgs);
65: }
66: } else {
67: newArgs.add(arg);
68: }
69: }
70: return (String[]) newArgs.toArray(new String[newArgs.size()]);
71: }
72:
73: private static void loadCmdFile(String name, List args)
74: throws IOException {
75: Reader r = new BufferedReader(new FileReader(name));
76: StreamTokenizer st = new StreamTokenizer(r);
77: st.resetSyntax();
78: st.wordChars(' ', 255);
79: st.whitespaceChars(0, ' ');
80: st.commentChar('#');
81: st.quoteChar('"');
82: st.quoteChar('\'');
83: while (st.nextToken() != st.TT_EOF) {
84: args.add(st.sval);
85: }
86: r.close();
87: }
88: }
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