1 /*
2 * Java HTML Tidy - JTidy
3 * HTML parser and pretty printer
4 *
5 * Copyright (c) 1998-2000 World Wide Web Consortium (Massachusetts
6 * Institute of Technology, Institut National de Recherche en
7 * Informatique et en Automatique, Keio University). All Rights
8 * Reserved.
9 *
10 * Contributing Author(s):
11 *
12 * Dave Raggett <dsr@w3.org>
13 * Andy Quick <ac.quick@sympatico.ca> (translation to Java)
14 * Gary L Peskin <garyp@firstech.com> (Java development)
15 * Sami Lempinen <sami@lempinen.net> (release management)
16 * Fabrizio Giustina <fgiust at users.sourceforge.net>
17 *
18 * The contributing author(s) would like to thank all those who
19 * helped with testing, bug fixes, and patience. This wouldn't
20 * have been possible without all of you.
21 *
22 * COPYRIGHT NOTICE:
23 *
24 * This software and documentation is provided "as is," and
25 * the copyright holders and contributing author(s) make no
26 * representations or warranties, express or implied, including
27 * but not limited to, warranties of merchantability or fitness
28 * for any particular purpose or that the use of the software or
29 * documentation will not infringe any third party patents,
30 * copyrights, trademarks or other rights.
31 *
32 * The copyright holders and contributing author(s) will not be
33 * liable for any direct, indirect, special or consequential damages
34 * arising out of any use of the software or documentation, even if
35 * advised of the possibility of such damage.
36 *
37 * Permission is hereby granted to use, copy, modify, and distribute
38 * this source code, or portions hereof, documentation and executables,
39 * for any purpose, without fee, subject to the following restrictions:
40 *
41 * 1. The origin of this source code must not be misrepresented.
42 * 2. Altered versions must be plainly marked as such and must
43 * not be misrepresented as being the original source.
44 * 3. This Copyright notice may not be removed or altered from any
45 * source or altered source distribution.
46 *
47 * The copyright holders and contributing author(s) specifically
48 * permit, without fee, and encourage the use of this source code
49 * as a component for supporting the Hypertext Markup Language in
50 * commercial products. If you use this source code in a product,
51 * acknowledgment is not required but would be appreciated.
52 *
53 */
54 package org.w3c.tidy;
55
56 /**
57 * DOMNodeListImpl. The items in the <code>NodeList</code> are accessible via an integral index, starting from 0.
58 * @author Dave Raggett <a href="mailto:dsr@w3.org">dsr@w3.org </a>
59 * @author Andy Quick <a href="mailto:ac.quick@sympatico.ca">ac.quick@sympatico.ca </a> (translation to Java)
60 * @author Fabrizio Giustina
61 * @version $Revision: 779 $ ($Author: fgiust $)
62 */
63 public class DOMNodeListImpl implements org.w3c.dom.NodeList
64 {
65
66 /**
67 * Parent Node.
68 */
69 private Node parent;
70
71 /**
72 * Instantiates a new DOM node list.
73 * @param parent parent Node
74 */
75 protected DOMNodeListImpl(Node parent)
76 {
77 this.parent = parent;
78 }
79
80 /**
81 * @see org.w3c.dom.NodeList#item(int)
82 */
83 public org.w3c.dom.Node item(int index)
84 {
85 if (parent == null)
86 {
87 return null;
88 }
89
90 int i = 0;
91 Node node = this.parent.content;
92 while (node != null)
93 {
94 if (i >= index)
95 {
96 break;
97 }
98 i++;
99 node = node.next;
100 }
101 if (node != null)
102 {
103 return node.getAdapter();
104 }
105
106 return null;
107 }
108
109 /**
110 * @see org.w3c.dom.NodeList#getLength
111 */
112 public int getLength()
113 {
114 if (parent == null)
115 {
116 return 0;
117 }
118
119 int len = 0;
120 Node node = this.parent.content;
121 while (node != null)
122 {
123 len++;
124 node = node.next;
125 }
126 return len;
127 }
128
129 }