01: /***
02: * Retrotranslator: a Java bytecode transformer that translates Java classes
03: * compiled with JDK 5.0 into classes that can be run on JVM 1.4.
04: *
05: * Copyright (c) 2005 - 2008 Taras Puchko
06: * All rights reserved.
07: *
08: * Redistribution and use in source and binary forms, with or without
09: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. Neither the name of the copyright holders nor the names of its
17: * contributors may be used to endorse or promote products derived from
18: * this software without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21: * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24: * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30: * THE POSSIBILITY OF SUCH DAMAGE.
31: */package net.sf.retrotranslator.transformer;
32:
33: import java.util.StringTokenizer;
34: import java.util.regex.Pattern;
35: import net.sf.retrotranslator.runtime.impl.RuntimeTools;
36:
37: /**
38: * @author Taras Puchko
39: */
40: class SourceMask {
41:
42: private Pattern pattern;
43:
44: public SourceMask(String srcmask) {
45: if (srcmask == null) {
46: pattern = null;
47: return;
48: }
49: StringBuilder builder = new StringBuilder();
50: for (String s : srcmask.split(";")) {
51: if (builder.length() > 0)
52: builder.append('|');
53: builder.append("((./)?");
54: StringTokenizer tokenizer = new StringTokenizer(s, "*?",
55: true);
56: while (tokenizer.hasMoreTokens()) {
57: builder.append(wildcardToRegex(tokenizer.nextToken()));
58: }
59: builder.append(")");
60: }
61: pattern = Pattern.compile(builder.toString());
62: }
63:
64: private static String wildcardToRegex(String s) {
65: if (s.equals("*"))
66: return ".*";
67: if (s.equals("?"))
68: return ".";
69: return Pattern.quote(s);
70: }
71:
72: public boolean matches(String name) {
73: return pattern != null ? pattern.matcher(name).matches() : name
74: .endsWith(RuntimeTools.CLASS_EXTENSION);
75: }
76:
77: }
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