1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/classes/com/sun/tools/javac/main/CommandLine.java Wed Apr 27 01:34:52 2016 +0800
1.3 @@ -0,0 +1,90 @@
1.4 +/*
1.5 + * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation. Oracle designates this
1.11 + * particular file as subject to the "Classpath" exception as provided
1.12 + * by Oracle in the LICENSE file that accompanied this code.
1.13 + *
1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 + * version 2 for more details (a copy is included in the LICENSE file that
1.18 + * accompanied this code).
1.19 + *
1.20 + * You should have received a copy of the GNU General Public License version
1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 + *
1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.25 + * or visit www.oracle.com if you need additional information or have any
1.26 + * questions.
1.27 + */
1.28 +
1.29 +package com.sun.tools.javac.main;
1.30 +
1.31 +import java.io.IOException;
1.32 +import java.io.Reader;
1.33 +import java.io.FileReader;
1.34 +import java.io.BufferedReader;
1.35 +import java.io.StreamTokenizer;
1.36 +import com.sun.tools.javac.util.ListBuffer;
1.37 +
1.38 +/**
1.39 + * Various utility methods for processing Java tool command line arguments.
1.40 + *
1.41 + * <p><b>This is NOT part of any supported API.
1.42 + * If you write code that depends on this, you do so at your own risk.
1.43 + * This code and its internal interfaces are subject to change or
1.44 + * deletion without notice.</b>
1.45 + */
1.46 +public class CommandLine {
1.47 + /**
1.48 + * Process Win32-style command files for the specified command line
1.49 + * arguments and return the resulting arguments. A command file argument
1.50 + * is of the form '@file' where 'file' is the name of the file whose
1.51 + * contents are to be parsed for additional arguments. The contents of
1.52 + * the command file are parsed using StreamTokenizer and the original
1.53 + * '@file' argument replaced with the resulting tokens. Recursive command
1.54 + * files are not supported. The '@' character itself can be quoted with
1.55 + * the sequence '@@'.
1.56 + */
1.57 + public static String[] parse(String[] args)
1.58 + throws IOException
1.59 + {
1.60 + ListBuffer<String> newArgs = new ListBuffer<String>();
1.61 + for (int i = 0; i < args.length; i++) {
1.62 + String arg = args[i];
1.63 + if (arg.length() > 1 && arg.charAt(0) == '@') {
1.64 + arg = arg.substring(1);
1.65 + if (arg.charAt(0) == '@') {
1.66 + newArgs.append(arg);
1.67 + } else {
1.68 + loadCmdFile(arg, newArgs);
1.69 + }
1.70 + } else {
1.71 + newArgs.append(arg);
1.72 + }
1.73 + }
1.74 + return newArgs.toList().toArray(new String[newArgs.length()]);
1.75 + }
1.76 +
1.77 + private static void loadCmdFile(String name, ListBuffer<String> args)
1.78 + throws IOException
1.79 + {
1.80 + Reader r = new BufferedReader(new FileReader(name));
1.81 + StreamTokenizer st = new StreamTokenizer(r);
1.82 + st.resetSyntax();
1.83 + st.wordChars(' ', 255);
1.84 + st.whitespaceChars(0, ' ');
1.85 + st.commentChar('#');
1.86 + st.quoteChar('"');
1.87 + st.quoteChar('\'');
1.88 + while (st.nextToken() != StreamTokenizer.TT_EOF) {
1.89 + args.append(st.sval);
1.90 + }
1.91 + r.close();
1.92 + }
1.93 +}
