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: 1.8.2.2 $
21: */package java.util.regex;
22:
23: /**
24: * Represents node accepting single character.
25: *
26: * @author Nikolay A. Kuznetsov
27: * @version $Revision: 1.8.2.2 $
28: */
29: final class EOLSet extends AbstractSet {
30:
31: private int consCounter;
32:
33: public EOLSet(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:
47: // check final line terminator;
48: if ((rightBound - strIndex) == 2
49: && testString.charAt(strIndex) == '\r'
50: && testString.charAt(strIndex + 1) == '\n') {
51: matchResult.setConsumed(consCounter, 0);
52: return next.matches(strIndex, testString, matchResult);
53: }
54: char ch;
55:
56: if ((rightBound - strIndex) == 1
57: && (((ch = testString.charAt(strIndex)) == '\n'
58: || ch == '\r' || ch == '\u0085' || (ch | 1) == '\u2029'))) {
59: matchResult.setConsumed(consCounter, 0);
60: return next.matches(strIndex, testString, matchResult);
61: }
62:
63: return -1;
64: }
65:
66: public boolean hasConsumed(MatchResultImpl matchResult) {
67: int cons;
68: boolean res = ((cons = matchResult.getConsumed(consCounter)) < 0 || cons > 0);
69: matchResult.setConsumed(consCounter, -1);
70: return res;
71: }
72:
73: protected String getName() {
74: return "<EOL>"; //$NON-NLS-1$
75: }
76: }
|