author | briangoetz |
Wed, 18 Dec 2013 10:29:25 -0500 | |
changeset 22159 | 682da512ec17 |
parent 7681 | 1f0819a3341f |
child 22163 | 3651128c74eb |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package com.sun.tools.javac.main; |
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import java.io.IOException; |
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import java.io.Reader; |
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import java.io.FileReader; |
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import java.io.BufferedReader; |
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import java.io.StreamTokenizer; |
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import com.sun.tools.javac.util.ListBuffer; |
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/** |
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* Various utility methods for processing Java tool command line arguments. |
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* |
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* <p><b>This is NOT part of any supported API. |
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* If you write code that depends on this, you do so at your own risk. |
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* This code and its internal interfaces are subject to change or |
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* deletion without notice.</b> |
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*/ |
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public class CommandLine { |
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/** |
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* Process Win32-style command files for the specified command line |
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* arguments and return the resulting arguments. A command file argument |
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* is of the form '@file' where 'file' is the name of the file whose |
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* contents are to be parsed for additional arguments. The contents of |
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* the command file are parsed using StreamTokenizer and the original |
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* '@file' argument replaced with the resulting tokens. Recursive command |
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* files are not supported. The '@' character itself can be quoted with |
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* the sequence '@@'. |
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*/ |
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public static String[] parse(String[] args) |
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throws IOException |
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{ |
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ListBuffer<String> newArgs = new ListBuffer<String>(); |
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for (String arg : args) { |
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if (arg.length() > 1 && arg.charAt(0) == '@') { |
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arg = arg.substring(1); |
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if (arg.charAt(0) == '@') { |
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newArgs.append(arg); |
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} else { |
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loadCmdFile(arg, newArgs); |
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} |
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} else { |
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newArgs.append(arg); |
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} |
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} |
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return newArgs.toList().toArray(new String[newArgs.length()]); |
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} |
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private static void loadCmdFile(String name, ListBuffer<String> args) |
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throws IOException |
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{ |
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try (Reader r = new BufferedReader(new FileReader(name))) { |
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StreamTokenizer st = new StreamTokenizer(r); |
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st.resetSyntax(); |
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st.wordChars(' ', 255); |
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st.whitespaceChars(0, ' '); |
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st.commentChar('#'); |
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st.quoteChar('"'); |
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st.quoteChar('\''); |
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while (st.nextToken() != StreamTokenizer.TT_EOF) { |
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args.append(st.sval); |
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} |
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} |
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} |
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} |