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1   /*
2    * reserved comment block
3    * DO NOT REMOVE OR ALTER!
4    */
5   /*
6    * Copyright 1999-2004 The Apache Software Foundation.
7    *
8    * Licensed under the Apache License, Version 2.0 (the "License");
9    * you may not use this file except in compliance with the License.
10   * You may obtain a copy of the License at
11   *
12   *     http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing, software
15   * distributed under the License is distributed on an "AS IS" BASIS,
16   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17   * See the License for the specific language governing permissions and
18   * limitations under the License.
19   */
20  
21  package com.sun.org.apache.regexp.internal;
22  
23  /**
24   * Encapsulates String as CharacterIterator.
25   *
26   * @author <a href="mailto:ales.novak@netbeans.com">Ales Novak</a>
27   */
28  public final class StringCharacterIterator implements CharacterIterator
29  {
30      /** encapsulated */
31      private final String src;
32  
33      /** @param src - encapsulated String */
34      public StringCharacterIterator(String src)
35      {
36          this.src = src;
37      }
38  
39      /** @return a substring */
40      public String substring(int beginIndex, int endIndex)
41      {
42          return src.substring(beginIndex, endIndex);
43      }
44  
45      /** @return a substring */
46      public String substring(int beginIndex)
47      {
48          return src.substring(beginIndex);
49      }
50  
51      /** @return a character at the specified position. */
52      public char charAt(int pos)
53      {
54          return src.charAt(pos);
55      }
56  
57      /** @return <tt>true</tt> iff if the specified index is after the end of the character stream */
58      public boolean isEnd(int pos)
59      {
60          return (pos >= src.length());
61      }
62  }