001: /*
002: * Licensed to the Apache Software Foundation (ASF) under one or more
003: * contributor license agreements. See the NOTICE file distributed with
004: * this work for additional information regarding copyright ownership.
005: * The ASF licenses this file to You under the Apache License, Version 2.0
006: * (the "License"); you may not use this file except in compliance with
007: * the License. You may obtain a copy of the License at
008: *
009: * http://www.apache.org/licenses/LICENSE-2.0
010: *
011: * Unless required by applicable law or agreed to in writing, software
012: * distributed under the License is distributed on an "AS IS" BASIS,
013: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014: * See the License for the specific language governing permissions and
015: * limitations under the License.
016: */
017:
018: /*
019: *
020: * Portions, Copyright © 1991-2005 Unicode, Inc. The following applies to Unicode.
021: *
022: * COPYRIGHT AND PERMISSION NOTICE
023: *
024: * Copyright © 1991-2005 Unicode, Inc. All rights reserved. Distributed under
025: * the Terms of Use in http://www.unicode.org/copyright.html. Permission is
026: * hereby granted, free of charge, to any person obtaining a copy of the
027: * Unicode data files and any associated documentation (the "Data Files")
028: * or Unicode software and any associated documentation (the "Software")
029: * to deal in the Data Files or Software without restriction, including without
030: * limitation the rights to use, copy, modify, merge, publish, distribute,
031: * and/or sell copies of the Data Files or Software, and to permit persons
032: * to whom the Data Files or Software are furnished to do so, provided that
033: * (a) the above copyright notice(s) and this permission notice appear with
034: * all copies of the Data Files or Software, (b) both the above copyright
035: * notice(s) and this permission notice appear in associated documentation,
036: * and (c) there is clear notice in each modified Data File or in the Software
037: * as well as in the documentation associated with the Data File(s) or Software
038: * that the data or software has been modified.
039:
040: * THE DATA FILES AND SOFTWARE ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
041: * KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
042: * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
043: * OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
044: * INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
045: * OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
046: * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
047: * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
048: * PERFORMANCE OF THE DATA FILES OR SOFTWARE.
049: *
050: * Except as contained in this notice, the name of a copyright holder shall
051: * not be used in advertising or otherwise to promote the sale, use or other
052: * dealings in these Data Files or Software without prior written
053: * authorization of the copyright holder.
054: *
055: * 2. Additional terms from the Database:
056: *
057: * Copyright © 1995-1999 Unicode, Inc. All Rights reserved.
058: *
059: * Disclaimer
060: *
061: * The Unicode Character Database is provided as is by Unicode, Inc.
062: * No claims are made as to fitness for any particular purpose. No warranties
063: * of any kind are expressed or implied. The recipient agrees to determine
064: * applicability of information provided. If this file has been purchased
065: * on magnetic or optical media from Unicode, Inc., the sole remedy for any claim
066: * will be exchange of defective media within 90 days of receipt. This disclaimer
067: * is applicable for all other data files accompanying the Unicode Character Database,
068: * some of which have been compiled by the Unicode Consortium, and some of which
069: * have been supplied by other sources.
070: *
071: * Limitations on Rights to Redistribute This Data
072: *
073: * Recipient is granted the right to make copies in any form for internal
074: * distribution and to freely use the information supplied in the creation of
075: * products supporting the UnicodeTM Standard. The files in
076: * the Unicode Character Database can be redistributed to third parties or other
077: * organizations (whether for profit or not) as long as this notice and the disclaimer
078: * notice are retained. Information can be extracted from these files and used
079: * in documentation or programs, as long as there is an accompanying notice
080: * indicating the source.
081: */
082:
083: package java.util.regex;
084:
085: /**
086: * This class is used to split the range that contains surrogate
087: * characters into two ranges: the first consisting of these surrogate
088: * characters and the second consisting of all others characters
089: * from the parent range.
090: * This class represents the parent range split in such a manner.
091: */
092: class CompositeRangeSet extends JointSet {
093:
094: //range without surrogates
095: AbstractSet withoutSurrogates;
096:
097: //range containing surrogates only
098: AbstractSet withSurrogates;
099:
100: public CompositeRangeSet(AbstractSet withoutSurrogates,
101: AbstractSet withSurrogates, AbstractSet next) {
102: this .withoutSurrogates = withoutSurrogates;
103: this .withSurrogates = withSurrogates;
104: setNext(next);
105: }
106:
107: public CompositeRangeSet(AbstractSet withoutSurrogates,
108: AbstractSet withSurrogates) {
109: this .withoutSurrogates = withoutSurrogates;
110: this .withSurrogates = withSurrogates;
111: }
112:
113: /**
114: * Returns the next.
115: */
116: public AbstractSet getNext() {
117: return this .next;
118: }
119:
120: public int matches(int stringIndex, CharSequence testString,
121: MatchResultImpl matchResult) {
122: int shift = withoutSurrogates.matches(stringIndex, testString,
123: matchResult);
124:
125: if (shift < 0) {
126: shift = withSurrogates.matches(stringIndex, testString,
127: matchResult);
128: }
129:
130: if (shift >= 0) {
131: return shift;
132: }
133: return -1;
134: }
135:
136: /**
137: * Sets next abstract set.
138: * @param next
139: * The next to set.
140: */
141: public void setNext(AbstractSet next) {
142: this .next = next;
143: withSurrogates.setNext(next);
144: withoutSurrogates.setNext(next);
145: }
146:
147: public AbstractSet getSurrogates() {
148: return withSurrogates;
149: }
150:
151: public AbstractSet getWithoutSurrogates() {
152: return withoutSurrogates;
153: }
154:
155: protected String getName() {
156: return "CompositeRangeSet: " + " <nonsurrogate> "
157: + withoutSurrogates + " <surrogate> " + withSurrogates;
158: }
159:
160: public boolean hasConsumed(MatchResultImpl matchResult) {
161: return true;
162: }
163:
164: public boolean first(AbstractSet set) {
165: return true;
166: }
167: }
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