| /******************************************************************************* |
| * Copyright (c) 2004, 2006 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.wst.html.core.internal.contentmodel; |
| |
| |
| |
| import java.util.Hashtable; |
| import java.util.Iterator; |
| import java.util.Locale; |
| |
| import org.eclipse.wst.xml.core.internal.contentmodel.CMNamedNodeMap; |
| import org.eclipse.wst.xml.core.internal.contentmodel.CMNode; |
| |
| /** |
| * An implementation of the CMNamedNodeMap interface. This class is intented |
| * to be used as a container of attribute declarations. If someone wants to |
| * use this class for other purpose, he must pay attention to the fact that |
| * this class is tolerant of the key name case. That is, this class does not |
| * distinguish "name", "NAME", and "Name" as a key name. |
| */ |
| class CMNamedNodeMapImpl implements CMNamedNodeMap { |
| |
| private Hashtable items = null; |
| |
| /** |
| */ |
| public CMNamedNodeMapImpl() { |
| super(); |
| items = new Hashtable(); |
| } |
| |
| /** |
| * getLength method |
| * |
| * @return int |
| */ |
| public int getLength() { |
| return items.size(); |
| } |
| |
| /** |
| * getNamedItem method |
| * |
| * @return CMNode <code>null</code> for unknown keys. |
| * @param name |
| * java.lang.String |
| */ |
| public CMNode getNamedItem(String name) { |
| String cookedName = makeCanonicalForm(name); |
| if (!items.containsKey(cookedName)) |
| return null; |
| return (CMNode) items.get(cookedName); |
| } |
| |
| /** |
| * item method |
| * |
| * @return CMNode |
| * @param index |
| * int |
| */ |
| public CMNode item(int index) { |
| Iterator iter = iterator(); |
| while (iter.hasNext()) { |
| CMNode node = (CMNode) iter.next(); |
| if (--index < 0) |
| return node; |
| } |
| return null; |
| } |
| |
| /** |
| * @return java.util.Iterator |
| */ |
| public Iterator iterator() { |
| return items.values().iterator(); |
| } |
| |
| /** |
| * @return java.lang.String |
| * @param rawForm |
| * java.lang.String |
| */ |
| private String makeCanonicalForm(String raw) { |
| // see https://bugs.eclipse.org/bugs/show_bug.cgi?id=100152 |
| // we are able to "cheat" here a little and use US Locale |
| // to get a good cononical form, since we are using this only |
| // for HTML and JSP standard tags. |
| // Long term, for similar needs with XML 1.1 (for example) |
| // we should use a class such as com.ibm.icu.text.Normalizer |
| return raw.toUpperCase(Locale.US); |
| } |
| |
| /** |
| * @param key |
| * java.lang.String |
| * @param item |
| * java.lang.String |
| */ |
| void putNamedItem(String name, CMNode item) { |
| String cookedName = makeCanonicalForm(name); |
| if (items.containsKey(cookedName)) |
| return; // already registered. |
| items.put(cookedName, item); |
| } |
| } |