1 files changed, 238 insertions, 0 deletions
diff --git a/bundles/org.eclipse.wst.html.core/src/org/eclipse/wst/html/core/contentmodel/DeclCollection.java b/bundles/org.eclipse.wst.html.core/src/org/eclipse/wst/html/core/contentmodel/DeclCollection.java
new file mode 100644
index 0000000000..c9449fd6bf
--- /dev/null
+++ b/bundles/org.eclipse.wst.html.core/src/org/eclipse/wst/html/core/contentmodel/DeclCollection.java
@@ -0,0 +1,238 @@
+/*******************************************************************************
+ * Copyright (c) 2004 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.contentmodel;
+
+
+
+import java.util.HashMap;
+import java.util.Iterator;
+
+import org.eclipse.wst.common.contentmodel.CMNamedNodeMap;
+import org.eclipse.wst.common.contentmodel.CMNode;
+
+/**
+ */
+abstract class DeclCollection implements CMNamedNodeMap {
+
+
+	protected class DualMap {
+		public DualMap() {
+			super();
+		}
+
+		public DualMap(Object[] objects) {
+			super();
+			initialize(objects);
+		}
+
+		public int size() {
+			return table.length;
+		}
+
+		public Object getValue(int key) {
+			if (!isValidIndex(key))
+				return null;
+			return table[key];
+		}
+
+		public int getKey(Object value) {
+			Integer keyObj = (Integer) map.get(value);
+			if (keyObj == null)
+				return ID_UNKNOWN;
+			return keyObj.intValue();
+		}
+
+		protected void initialize(Object[] objects) {
+			if (objects == null)
+				return;
+			table = objects;
+			map = new HashMap();
+			for (int key = 0; key < objects.length; key++) {
+				Object value = table[key];
+				map.put(value, new Integer(key));
+			}
+		}
+
+		private Object[] table = null;
+		private HashMap map = null;
+
+		private boolean isValidIndex(int index) {
+			return index >= 0 && index < table.length;
+		}
+	}
+
+	protected class TolerantStringDualMap extends DualMap {
+		public TolerantStringDualMap(String[] names) {
+			super();
+			Object[] objects = new Object[names.length];
+			for (int i = 0; i < names.length; i++) {
+				objects[i] = makeCanonicalForm(names[i]);
+			}
+			initialize(objects);
+		}
+
+		public int getKey(Object value) {
+			try {
+				String name = (String) value;
+				return super.getKey(makeCanonicalForm(name));
+			}
+			catch (ClassCastException e) {
+				return ID_UNKNOWN;
+			}
+		}
+
+		private String makeCanonicalForm(String raw) {
+			return raw.toUpperCase();
+		}
+	}
+
+	private class DeclIterator implements Iterator {
+		public DeclIterator() {
+			maxid = fDecls.length - 1;
+		}
+
+		public boolean hasNext() {
+			return id < maxid;
+		}
+
+		public Object next() {
+			if (!hasNext())
+				return null;
+			return item(++id);
+		}
+
+		public void remove() { /* nothing should be done. */
+		}
+
+		private int id = -1;
+		private int maxid = -1;
+	}
+
+	CMNode[] fDecls = null;
+	protected final static boolean STRICT_CASE = false;
+	protected final static boolean TOLERANT_CASE = true;
+	protected final static int ID_UNKNOWN = -1;
+	private DualMap fMap = null;
+
+	/**
+	 */
+	public DeclCollection(String[] names, boolean tolerant) {
+		super();
+		fDecls = new CMNode[names.length];
+		if (tolerant) {
+			fMap = new TolerantStringDualMap(names);
+		}
+		else {
+			fMap = new DualMap(names);
+		}
+	}
+
+	/**
+	 * @return org.eclipse.wst.common.contentmodel.CMNode
+	 * @param id int
+	 */
+	protected abstract CMNode create(String name);
+
+	/**
+	 */
+	public CMNamedNodeMap getDeclarations(String[] names) {
+		CMNamedNodeMapImpl map = new CMNamedNodeMapImpl();
+		for (int i = 0; i < names.length; i++) {
+			String name = names[i];
+			CMNode node = getNamedItem(name);
+			if (node == null)
+				continue;
+			map.putNamedItem(name, node);
+		}
+		return map;
+	}
+
+	/**
+	 * @param declarations com.ibm.sed.contentmodel.html.CMGroupImpl
+	 * @param names java.util.Iterator
+	 */
+	public void getDeclarations(CMGroupImpl group, Iterator names) {
+		while (names.hasNext()) {
+			String entityName = (String) names.next();
+			CMNode dec = getNamedItem(entityName);
+			if (dec != null)
+				group.appendChild(dec);
+		}
+	}
+
+	/**
+	 * Map name to id.
+	 * @return int
+	 * @param name java.lang.String
+	 */
+	protected int getID(String name) {
+		return fMap.getKey(name);
+	}
+
+	/**
+	 * getLength method
+	 * @return int
+	 */
+	public int getLength() {
+		return fDecls.length;
+	}
+
+	/**
+	 * @return java.lang.String
+	 * @param id int
+	 */
+	protected String getName(int id) {
+		return (String) fMap.getValue(id);
+	}
+
+	/**
+	 * getNamedItem method
+	 * @return CMNode
+	 * @param name java.lang.String
+	 */
+	public CMNode getNamedItem(String name) {
+		int id = getID(name);
+		if (!isValidID(id))
+			return null;
+		return item(id);
+	}
+
+	/**
+	 * @return boolean
+	 * @param id int
+	 */
+	private boolean isValidID(int id) {
+		return id >= 0 && id < fDecls.length;
+	}
+
+	/**
+	 * item method
+	 * @return CMNode
+	 * @param index int
+	 */
+	public CMNode item(int index) {
+		if (!isValidID(index))
+			return null;
+		CMNode decl = fDecls[index];
+		if (decl != null)
+			return decl; // already exist.
+
+		decl = create(getName(index));
+		fDecls[index] = decl;
+		return decl;
+	}
+
+	/**
+	 */
+	public Iterator iterator() {
+		return new DeclIterator();
+	}
+}
+\ No newline at end of file