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[official-gcc.git] / gomp-20050608-branch / libjava / classpath / gnu / javax / swing / text / html / parser / htmlAttributeSet.java
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1 /* htmlAttributeSet.java -- A set to store HTML attributes
2 Copyright (C) 2005 Free Software Foundation, Inc.
4 This file is part of GNU Classpath.
6 GNU Classpath is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
9 any later version.
11 GNU Classpath is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Classpath; see the file COPYING. If not, write to the
18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
19 02110-1301 USA.
21 Linking this library statically or dynamically with other modules is
22 making a combined work based on this library. Thus, the terms and
23 conditions of the GNU General Public License cover the whole
24 combination.
26 As a special exception, the copyright holders of this library give you
27 permission to link this library with independent modules to produce an
28 executable, regardless of the license terms of these independent
29 modules, and to copy and distribute the resulting executable under
30 terms of your choice, provided that you also meet, for each linked
31 independent module, the terms and conditions of the license of that
32 module. An independent module is a module which is not derived from
33 or based on this library. If you modify this library, you may extend
34 this exception to your version of the library, but you are not
35 obligated to do so. If you do not wish to do so, delete this
36 exception statement from your version. */
39 package gnu.javax.swing.text.html.parser;
41 import java.util.Enumeration;
43 import javax.swing.text.AttributeSet;
44 import javax.swing.text.SimpleAttributeSet;
45 import javax.swing.text.html.HTML;
47 /**
48 * A set, adapted to store HTML attributes.
49 * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
51 public class htmlAttributeSet
52 extends SimpleAttributeSet
54 public static final htmlAttributeSet EMPTY_HTML_ATTRIBUTE_SET =
55 new htmlAttributeSet();
56 AttributeSet parent;
58 /**
59 * Looks in this set and, if not found, later looks in the parent set.
60 * Calls toString(), allowing to pass as HTML.Attribute, as String
61 * to this method.
62 * @param key A key to search for a value.
63 * @return The value, if one is defined.
65 public Object getAttribute(Object _key)
67 Object key = _key.toString().toLowerCase();
69 Object v = super.getAttribute(key);
70 if (v != null)
71 return v;
72 else if (parent != null)
73 return parent.getAttribute(key);
74 else
75 return null;
78 /**
79 * The name set must return HTML.Attribute and not a string,
80 * where applicable.
82 public Enumeration getAttributeNames()
84 // Replace the string keys by HTML.attribute, where applicable
85 final Enumeration enumeration = super.getAttributeNames();
87 return new Enumeration()
89 public boolean hasMoreElements()
91 return enumeration.hasMoreElements();
94 public Object nextElement()
96 Object key = enumeration.nextElement();
97 HTML.Attribute hKey = HTML.getAttributeKey((String) key);
98 if (hKey != null)
99 return hKey;
100 else
101 return key;
107 * Set the parent set, containing the default values.
108 * @param a_parent
110 public void setResolveParent(AttributeSet a_parent)
112 parent = a_parent;
116 * Get the parent set, containing the default values.
117 * @return
119 public AttributeSet getResolveParent()
121 return parent;
125 * Add the attribute to this attribute set.
126 * @param key Attribute key (will be case insensitive)
127 * @param value Attribute value
129 public void addAttribute(Object key, Object value)
131 super.addAttribute(key.toString().toLowerCase(), value);