1b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato/*
2b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * ProGuard -- shrinking, optimization, obfuscation, and preverification
3b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato *             of Java bytecode.
4b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato *
5b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Copyright (c) 2002-2009 Eric Lafortune (eric@graphics.cornell.edu)
6b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato *
7b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This program is free software; you can redistribute it and/or modify it
8b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * under the terms of the GNU General Public License as published by the Free
9b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Software Foundation; either version 2 of the License, or (at your option)
10b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * any later version.
11b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato *
12b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This program is distributed in the hope that it will be useful, but WITHOUT
13b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * more details.
16b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato *
17b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * You should have received a copy of the GNU General Public License along
18b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * with this program; if not, write to the Free Software Foundation, Inc.,
19b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */
21b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratopackage proguard.util;
22b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato
23b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato/**
24b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This StringMatcher tests whether strings are empty.
25b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato *
26b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @author Eric Lafortune
27b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */
28b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratopublic class EmptyStringMatcher implements StringMatcher
29b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato{
30b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato    // Implementations for StringMatcher.
31b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato
32b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato    public boolean matches(String string)
33b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato    {
34b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato        return string.length() == 0;
35b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato    }
36b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato}
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