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Java > Open Source Codes > org > w3c > tidy > AttVal


1 /*
2  * @(#)AttVal.java 1.11 2000/08/16
3  *
4  */

5
6 package org.w3c.tidy;
7
8 /**
9  *
10  * Attribute/Value linked list node
11  *
12  * (c) 1998-2000 (W3C) MIT, INRIA, Keio University
13  * See Tidy.java for the copyright notice.
14  * Derived from <a HREF="http://www.w3.org/People/Raggett/tidy">
15  * HTML Tidy Release 4 Aug 2000</a>
16  *
17  * @author Dave Raggett <dsr@w3.org>
18  * @author Andy Quick <ac.quick@sympatico.ca> (translation to Java)
19  * @version 1.0, 1999/05/22
20  * @version 1.0.1, 1999/05/29
21  * @version 1.1, 1999/06/18 Java Bean
22  * @version 1.2, 1999/07/10 Tidy Release 7 Jul 1999
23  * @version 1.3, 1999/07/30 Tidy Release 26 Jul 1999
24  * @version 1.4, 1999/09/04 DOM support
25  * @version 1.5, 1999/10/23 Tidy Release 27 Sep 1999
26  * @version 1.6, 1999/11/01 Tidy Release 22 Oct 1999
27  * @version 1.7, 1999/12/06 Tidy Release 30 Nov 1999
28  * @version 1.8, 2000/01/22 Tidy Release 13 Jan 2000
29  * @version 1.9, 2000/06/03 Tidy Release 30 Apr 2000
30  * @version 1.10, 2000/07/22 Tidy Release 8 Jul 2000
31  * @version 1.11, 2000/08/16 Tidy Release 4 Aug 2000
32  */

33
34 public class AttVal extends Object JavaDoc implements Cloneable JavaDoc {
35
36     public AttVal next;
37     public Attribute dict;
38     public Node asp;
39     public Node php;
40     public int delim;
41     public String JavaDoc attribute;
42     public String JavaDoc value;
43
44     public AttVal()
45     {
46         this.next = null;
47         this.dict = null;
48         this.asp = null;
49         this.php = null;
50         this.delim = 0;
51         this.attribute = null;
52         this.value = null;
53     }
54
55     public AttVal(AttVal next, Attribute dict, int delim,
56                   String JavaDoc attribute, String JavaDoc value)
57     {
58         this.next = next;
59         this.dict = dict;
60         this.asp = null;
61         this.php = null;
62         this.delim = delim;
63         this.attribute = attribute;
64         this.value = value;
65     }
66
67     public AttVal(AttVal next, Attribute dict, Node asp, Node php,
68                   int delim, String JavaDoc attribute, String JavaDoc value)
69     {
70         this.next = next;
71         this.dict = dict;
72         this.asp = asp;
73         this.php = php;
74         this.delim = delim;
75         this.attribute = attribute;
76         this.value = value;
77     }
78
79     protected Object JavaDoc clone()
80     {
81         AttVal av = new AttVal();
82         if (next != null) {
83             av.next = (AttVal)next.clone();
84         }
85         if (attribute != null)
86             av.attribute = attribute;
87         if (value != null)
88             av.value = value;
89         av.delim = delim;
90         if (asp != null) {
91             av.asp = (Node)asp.clone();
92         }
93         if (php != null) {
94             av.php = (Node)php.clone();
95         }
96         av.dict =
97           AttributeTable.getDefaultAttributeTable().findAttribute(this);
98         return av;
99     }
100
101     public boolean isBoolAttribute()
102     {
103         Attribute attribute = this.dict;
104         if ( attribute != null ) {
105             if (attribute.attrchk == AttrCheckImpl.getCheckBool() ) {
106                 return true;
107             }
108         }
109
110         return false;
111     }
112
113     /* ignore unknown attributes for proprietary elements */
114     public Attribute checkAttribute( Lexer lexer, Node node )
115     {
116         TagTable tt = lexer.configuration.tt;
117
118         if (this.asp == null && this.php == null)
119             this.checkUniqueAttribute(lexer, node);
120
121         Attribute attribute = this.dict;
122         if ( attribute != null ) {
123             /* title is vers 2.0 for A and LINK otherwise vers 4.0 */
124             if (attribute == AttributeTable.attrTitle &&
125                     (node.tag == tt.tagA || node.tag == tt.tagLink))
126                     lexer.versions &= Dict.VERS_ALL;
127             else if ((attribute.versions & Dict.VERS_XML) != 0)
128             {
129                 if (!(lexer.configuration.XmlTags || lexer.configuration.XmlOut))
130                     Report.attrError(lexer, node, this.attribute, Report.XML_ATTRIBUTE_VALUE);
131             }
132             else
133                 lexer.versions &= attribute.versions;
134         
135             if (attribute.attrchk != null)
136                 attribute.attrchk.check(lexer, node, this);
137         }
138         else if (!lexer.configuration.XmlTags && !(node.tag == null) && this.asp == null &&
139                  !(node.tag != null && ((node.tag.versions & Dict.VERS_PROPRIETARY) != 0)))
140             Report.attrError(lexer, node, this.attribute, Report.UNKNOWN_ATTRIBUTE);
141
142         return attribute;
143     }
144
145     /*
146      the same attribute name can't be used
147      more than once in each element
148     */

149     public void checkUniqueAttribute(Lexer lexer, Node node)
150     {
151         AttVal attr;
152         int count = 0;
153
154         for (attr = this.next; attr != null; attr = attr.next)
155         {
156             if (this.attribute != null &&
157                 attr.attribute != null &&
158                 attr.asp == null &&
159                 attr.php == null &&
160                 Lexer.wstrcasecmp(this.attribute, attr.attribute) == 0)
161                 ++count;
162         }
163
164         if (count > 0)
165             Report.attrError(lexer, node, this.attribute, Report.REPEATED_ATTRIBUTE);
166     }
167
168     /* --------------------- DOM ---------------------------- */
169
170     protected org.w3c.dom.Attr JavaDoc adapter = null;
171
172     protected org.w3c.dom.Attr JavaDoc getAdapter()
173     {
174         if (adapter == null)
175         {
176             adapter = new DOMAttrImpl(this);
177         }
178         return adapter;
179     }
180     /* --------------------- END DOM ------------------------ */
181
182 }
183
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