01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: */
17:
18: /**
19: * @author Nikolay A. Kuznetsov
20: * @version $Revision: 1.3.2.2 $
21: */package java.util.regex;
22:
23: /**
24: * Unix line terminator, accepting only \n.
25: *
26: * @author Nikolay A. Kuznetsov
27: * @version $Revision: 1.3.2.2 $
28: */
29: final class UEOLSet extends AbstractSet {
30:
31: private int consCounter;
32:
33: public UEOLSet(int counter) {
34: this .consCounter = counter;
35: }
36:
37: public int matches(int strIndex, CharSequence testString,
38: MatchResultImpl matchResult) {
39: int rightBound = matchResult.hasAnchoringBounds() ? matchResult
40: .getRightBound() : testString.length();
41:
42: if (strIndex >= rightBound) {
43: matchResult.setConsumed(consCounter, 0);
44: return next.matches(strIndex, testString, matchResult);
45: }
46: // check final line terminator;
47:
48: if ((rightBound - strIndex) == 1
49: && testString.charAt(strIndex) == '\n') {
50: matchResult.setConsumed(consCounter, 1);
51: return next.matches(strIndex + 1, testString, matchResult);
52: }
53:
54: return -1;
55: }
56:
57: public boolean hasConsumed(MatchResultImpl matchResult) {
58: int cons;
59: boolean res = ((cons = matchResult.getConsumed(consCounter)) < 0 || cons > 0);
60: matchResult.setConsumed(consCounter, -1);
61: return res;
62: }
63:
64: protected String getName() {
65: return "<EOL>"; //$NON-NLS-1$
66: }
67: }
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