1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * 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 package org.apache.regexp;
19
20 /**
21 * Encapsulates String as CharacterIterator.
22 *
23 * @author <a href="mailto:ales.novak@netbeans.com">Ales Novak</a>
24 * @version CVS $Id: StringCharacterIterator.java 518156 2007-03-14 14:31:26Z vgritsenko $
25 */
26 public final class StringCharacterIterator implements CharacterIterator
27 {
28 /** encapsulated */
29 private final String src;
30
31 /** @param src - encapsulated String */
32 public StringCharacterIterator(String src)
33 {
34 this.src = src;
35 }
36
37 /** @return a substring */
38 public String substring(int beginIndex, int endIndex)
39 {
40 return src.substring(beginIndex, endIndex);
41 }
42
43 /** @return a substring */
44 public String substring(int beginIndex)
45 {
46 return src.substring(beginIndex);
47 }
48
49 /** @return a character at the specified position. */
50 public char charAt(int pos)
51 {
52 return src.charAt(pos);
53 }
54
55 /** @return <tt>true</tt> iff if the specified index is after the end of the character stream */
56 public boolean isEnd(int pos)
57 {
58 return (pos >= src.length());
59 }
60 }
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