| 1 | /* parameterDefaulter.java -- |
| 2 | Copyright (C) 2005 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GNU Classpath. |
| 5 | |
| 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. |
| 10 | |
| 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. |
| 15 | |
| 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. |
| 20 | |
| 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. |
| 25 | |
| 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. */ |
| 37 | |
| 38 | |
| 39 | package gnu.javax.swing.text.html.parser.support; |
| 40 | |
| 41 | import gnu.javax.swing.text.html.parser.htmlAttributeSet; |
| 42 | |
| 43 | import java.util.Hashtable; |
| 44 | |
| 45 | import javax.swing.text.html.parser.AttributeList; |
| 46 | import javax.swing.text.html.parser.DTD; |
| 47 | import javax.swing.text.html.parser.Element; |
| 48 | |
| 49 | /** |
| 50 | * Returns an attribute set, containing default |
| 51 | * parameters for the given element. Caches sets of default |
| 52 | * parameters. |
| 53 | * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) |
| 54 | */ |
| 55 | public class parameterDefaulter |
| 56 | { |
| 57 | public final DTD dtd; |
| 58 | Hashtable sets = new Hashtable(); |
| 59 | |
| 60 | /** |
| 61 | * Create a parameterDefaulter that looks for the default attribute |
| 62 | * values in the given DTD. |
| 63 | * @param a_dtd |
| 64 | */ |
| 65 | public parameterDefaulter(DTD a_dtd) |
| 66 | { |
| 67 | dtd = a_dtd; |
| 68 | } |
| 69 | |
| 70 | /** |
| 71 | * Get the default parameter set for the given element. |
| 72 | * @param element The element name (case insensitive). |
| 73 | * @return the default attrbute set. |
| 74 | */ |
| 75 | public htmlAttributeSet getDefaultParameters(String element) |
| 76 | { |
| 77 | String key = element.toLowerCase(); |
| 78 | htmlAttributeSet atts = (htmlAttributeSet) sets.get(key); |
| 79 | |
| 80 | if (atts == null) |
| 81 | { |
| 82 | htmlAttributeSet set = new htmlAttributeSet(); |
| 83 | Element e = (Element) dtd.elementHash.get(element.toLowerCase()); |
| 84 | |
| 85 | if (e != null) |
| 86 | { |
| 87 | AttributeList a = e.getAttributes(); |
| 88 | |
| 89 | while (a != null) |
| 90 | { |
| 91 | if (a.value != null) |
| 92 | set.addAttribute(a.name, a.value); |
| 93 | a = a.next; |
| 94 | } |
| 95 | } |
| 96 | |
| 97 | if (set.getAttributeCount() > 0) |
| 98 | sets.put(key, set); |
| 99 | else |
| 100 | sets.put(key, htmlAttributeSet.EMPTY_HTML_ATTRIBUTE_SET); |
| 101 | |
| 102 | atts = set; |
| 103 | } |
| 104 | return atts; |
| 105 | } |
| 106 | } |