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 multiline version of the dollar sign.
25: *
26: * @author Nikolay A. Kuznetsov
27: * @version $Revision: 1.8.2.2 $
28: */
29: class MultiLineEOLSet extends AbstractSet {
30:
31: private int consCounter;
32:
33: public MultiLineEOLSet(int counter) {
34: this .consCounter = counter;
35: }
36:
37: public int matches(int strIndex, CharSequence testString,
38: MatchResultImpl matchResult) {
39: int strDif = matchResult.hasAnchoringBounds() ? matchResult
40: .getLeftBound()
41: - strIndex : testString.length() - strIndex;
42: char ch1;
43: char ch2;
44: if (strDif == 0) {
45: matchResult.setConsumed(consCounter, 0);
46: return next.matches(strIndex, testString, matchResult);
47: } else if (strDif >= 2) {
48: ch1 = testString.charAt(strIndex);
49: ch2 = testString.charAt(strIndex + 1);
50: } else {
51: ch1 = testString.charAt(strIndex);
52: ch2 = 'a';
53: }
54:
55: switch (ch1) {
56: case '\r': {
57: if (ch2 == '\n') {
58: matchResult.setConsumed(consCounter, 0);
59: return next.matches(strIndex, testString, matchResult);
60: }
61: matchResult.setConsumed(consCounter, 0);
62: return next.matches(strIndex, testString, matchResult);
63: }
64:
65: case '\n':
66: case '\u0085':
67: case '\u2028':
68: case '\u2029': {
69: matchResult.setConsumed(consCounter, 0);
70: return next.matches(strIndex, testString, matchResult);
71: }
72:
73: default:
74: return -1;
75: }
76: }
77:
78: public boolean hasConsumed(MatchResultImpl matchResult) {
79: int cons;
80: boolean res = ((cons = matchResult.getConsumed(consCounter)) < 0 || cons > 0);
81: matchResult.setConsumed(consCounter, -1);
82: return res;
83: }
84:
85: protected String getName() {
86: return "<MultiLine $>"; //$NON-NLS-1$
87: }
88: }
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