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1   package org.apache.commons.digester3.xmlrules;
2   
3   /*
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  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,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  import java.util.Stack;
23  
24  /**
25   */
26  final class PatternStack
27      extends Stack<String>
28  {
29  
30      private static final long serialVersionUID = 1L;
31  
32      @Override
33      public String toString()
34      {
35          StringBuilder str = new StringBuilder();
36          for ( int i = 0; i < size(); i++ )
37          {
38              String elem = get( i );
39              if ( elem.length() > 0 )
40              {
41                  if ( str.length() > 0 )
42                  {
43                      str.append( '/' );
44                  }
45                  str.append( elem );
46              }
47          }
48          return str.toString();
49      }
50  
51  }