1/*
2 * ProGuard -- shrinking, optimization, obfuscation, and preverification
3 *             of Java bytecode.
4 *
5 * Copyright (c) 2002-2014 Eric Lafortune (eric@graphics.cornell.edu)
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the Free
9 * Software Foundation; either version 2 of the License, or (at your option)
10 * any later version.
11 *
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * more details.
16 *
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21package proguard;
22
23import java.io.*;
24
25
26/**
27 * A <code>WordReader</code> that returns words from an argument list.
28 * Single arguments are split into individual words if necessary.
29 *
30 * @author Eric Lafortune
31 */
32public class ArgumentWordReader extends WordReader
33{
34    private final String[] arguments;
35
36    private int index = 0;
37
38
39//    /**
40//     * Creates a new ArgumentWordReader for the given arguments.
41//     */
42//    public ArgumentWordReader(String[] arguments)
43//    {
44//        this(arguments, null);
45//    }
46//
47//
48    /**
49     * Creates a new ArgumentWordReader for the given arguments, with the
50     * given base directory.
51     */
52    public ArgumentWordReader(String[] arguments, File baseDir)
53    {
54        super(baseDir);
55
56        this.arguments = arguments;
57    }
58
59
60    // Implementations for WordReader.
61
62    protected String nextLine() throws IOException
63    {
64        return index < arguments.length ?
65            arguments[index++] :
66            null;
67    }
68
69
70    protected String lineLocationDescription()
71    {
72        return "argument number " + index;
73    }
74
75
76    /**
77     * Test application that prints out the individual words of
78     * the argument list.
79     */
80    public static void main(String[] args) {
81
82        try
83        {
84            WordReader reader = new ArgumentWordReader(args, null);
85
86            try
87            {
88                while (true)
89                {
90                    String word = reader.nextWord(false);
91                    if (word == null)
92                        System.exit(-1);
93
94                    System.err.println("["+word+"]");
95                }
96            }
97            catch (Exception ex)
98            {
99                ex.printStackTrace();
100            }
101            finally
102            {
103                reader.close();
104            }
105        }
106        catch (IOException ex)
107        {
108            ex.printStackTrace();
109        }
110    }
111}
112