src/whiteboard/org/apache/xerces/tree/Doctype.java - xerces2-j - Git at Google

 /*
  * $Id$
  *
  * The Apache Software License, Version 1.1
  *
  *
  * Copyright (c) 2000 The Apache Software Foundation.  All rights
  * reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  *
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in
  *    the documentation and/or other materials provided with the
  *    distribution.
  *
  * 3. The end-user documentation included with the redistribution,
  *    if any, must include the following acknowledgment:
  *       "This product includes software developed by the
  *        Apache Software Foundation (http://www.apache.org/)."
  *    Alternately, this acknowledgment may appear in the software itself,
  *    if and wherever such third-party acknowledgments normally appear.
  *
  * 4. The names "Crimson" and "Apache Software Foundation" must
  *    not be used to endorse or promote products derived from this
  *    software without prior written permission. For written
  *    permission, please contact apache@apache.org.
  *
  * 5. Products derived from this software may not be called "Apache",
  *    nor may "Apache" appear in their name, without prior written
  *    permission of the Apache Software Foundation.
  *
  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  * ====================================================================
  *
  * This software consists of voluntary contributions made by many
  * individuals on behalf of the Apache Software Foundation and was
  * originally based on software copyright (c) 1999, Sun Microsystems, Inc.,
  * http://www.sun.com.  For more information on the Apache Software
  * Foundation, please see <http://www.apache.org/>.
  */

 package org.apache.xerces.tree;


 import java.io.OutputStreamWriter;
 import java.io.OutputStream;
 import java.io.Writer;
 import java.io.IOException;
 import java.util.Dictionary;
 import java.util.Enumeration;
 import java.util.Hashtable;

 import org.w3c.dom.*;

 import org.xml.sax.SAXException;

 //Don't need this looks like.
 //import org.apache.crimson.parser.Parser;


 /**
  * Class representing a DTD in DOM Level 1; this class exists purely
  * for editor support, and is of dubious interest otherwise.
  *
  * @author David Brownell
  * @version $Revision$
  */
 final class Doctype extends NodeBase implements DocumentType
 {
     // Stuff generated during parsing ...
     private String	name;
     private Nodemap	entities;
     private Nodemap	notations;

     // ... stuff assigned by apps separately
     private String	publicId;
     private String	systemId;
     private String	internalSubset;


     // package private
     Doctype (String n)
     {
 	name = n;
 	entities = new Nodemap ();
 	notations = new Nodemap ();
     }

     // package private
     Doctype (String pub, String sys, String subset)
     {
 	publicId = pub;
 	systemId = sys;
 	internalSubset = subset;
     }

     // package private
     Doctype(String name, String publicId, String systemId,
             String internalSubset)
     {
         this.name = name;
         this.publicId = publicId;
 	this.systemId = systemId;
 	this.internalSubset = internalSubset;
     }

     // package private
     void setPrintInfo (String pub, String sys, String subset)
     {
 	publicId = pub;
 	systemId = sys;
 	internalSubset = subset;
     }


     /**
      * Writes out a textual DTD, trusting that any internal subset text
      * is in fact well formed XML.
      */
     public void writeXml (XmlWriteContext context) throws IOException
     {
 	Writer	out = context.getWriter ();
 	Element	root = getOwnerDocument ().getDocumentElement ();

 	out.write ("<!DOCTYPE ");
 	out.write (root == null ? "UNKNOWN-ROOT" : root.getNodeName ());

 	if (systemId != null) {
 	    if (publicId != null) {
 		out.write (" PUBLIC '");
 		out.write (publicId);
 		out.write ("' '");
 	    } else
 		out.write (" SYSTEM '");
 	    out.write (systemId);
 	    out.write ("'");
 	}
 	if (internalSubset != null) {
 	    out.write (XmlDocument.eol);
 	    out.write ("[");
 	    out.write (internalSubset);
 	    out.write ("]");
 	}
 	out.write (">");
 	out.write (XmlDocument.eol);
     }

     /** DOM: Returns DOCUMENT_TYPE_NODE */
     public short getNodeType ()
 	{ return DOCUMENT_TYPE_NODE; }

     /** DOM:  Returns the name declared for the document root node. */
     public String getName ()
 	{ return name; }

     /** DOM:  Returns the name declared for the document root node. */
     public String getNodeName ()
 	{ return name; }

     /** DOM: NYI
      * @deprecated Not yet implemented.
      */
     public Node cloneNode (boolean deep)
     {
 // XXX
 	throw new RuntimeException (getMessage ("DT-000"));
     }

     /**
      * DOM: Returns the internal, external, and unparsed entities
      * declared in this DTD.
      */
     public NamedNodeMap getEntities ()
 	{ return entities; }

     /** DOM: Returns the notations declared in this DTD.  */
     public NamedNodeMap getNotations ()
 	{ return notations; }

     /**
      * The public identifier of the external subset.
      * @since DOM Level 2
      */
     public String getPublicId() {
         return publicId;
     }

     /**
      * The system identifier of the external subset.
      * @since DOM Level 2
      */
     public String getSystemId() {
         return systemId;
     }

     /**
      * The internal subset as a string.
      * @since DOM Level 2
      */
     public String getInternalSubset() {
         return internalSubset;
     }

     // package private
     void setOwnerDocument (XmlDocument doc)
     {
 	super.setOwnerDocument (doc);
 	if (entities != null)
 	    for (int i = 0; entities.item (i) != null; i++)
 		((NodeBase)entities.item (i)).setOwnerDocument (doc);
 	if (notations != null)
 	    for (int i = 0; notations.item (i) != null; i++)
 		((NodeBase)notations.item (i)).setOwnerDocument (doc);
     }


     /** Adds a notation node. */
     // package private
     void addNotation (String name, String pub, String sys)
     {
 	NotationNode node = new NotationNode (name, pub, sys);
 	node.setOwnerDocument ((XmlDocument)getOwnerDocument ());
 	notations.setNamedItem (node);
     }

     /**
      * Adds an entity node for an external entity, which
      * could be parsed or unparsed.
      */
     // package private
     void addEntityNode (String name, String pub, String sys, String not)
     {
 	EntityNode node = new EntityNode (name, pub, sys, not);
 	node.setOwnerDocument ((XmlDocument)getOwnerDocument ());
 	entities.setNamedItem (node);
     }

     /** Adds an entity node for an  internal parsed entity. */
     // package private
     void addEntityNode (String name, String value)
     {
 	if ("lt".equals (name) || "gt".equals (name)
 		|| "apos".equals (name) || "quot".equals (name)
 		|| "amp".equals (name))
 	    return;	// predeclared, immutable

 	EntityNode node = new EntityNode (name, value);
 	node.setOwnerDocument ((XmlDocument)getOwnerDocument ());
 	entities.setNamedItem (node);
     }

     /** Marks the sets of entities and notations as readonly. */
     // package private
     void setReadonly ()
     {
 	entities.readonly = true;
 	notations.readonly = true;
     }


     static class NotationNode extends NodeBase implements Notation
     {
 	private String	notation;
 	private String	publicId;
 	private String	systemId;

 	NotationNode (String name, String pub, String sys)
 	{
 	    notation = name;
 	    publicId = pub;
 	    systemId = sys;
 	}

 	public String getPublicId ()
 	    { return publicId; }

 	public String getSystemId ()
 	    { return systemId; }

 	public short getNodeType ()
 	    { return NOTATION_NODE; }

 	public String getNodeName ()
 	    { return notation; }

 	public Node cloneNode (boolean ignored)
 	{
 	    NotationNode retval;

 	    retval = new NotationNode (notation, publicId, systemId);
 	    retval.setOwnerDocument ((XmlDocument)getOwnerDocument ());
 	    return retval;
 	}

 	public void writeXml (XmlWriteContext context) throws IOException
 	{
 	    Writer out = context.getWriter ();
 	    out.write ("<!NOTATION ");
 	    out.write (notation);
 	    if (publicId != null) {
 		out.write (" PUBLIC '");
 		out.write (publicId);
 		if (systemId != null) {
 		    out.write ("' '");
 		    out.write (systemId);
 		}
 	    } else {
 		out.write (" SYSTEM '");
 		out.write (systemId);
 	    }
 	    out.write ("'>");
 	}
     }


     // DOM permits the children to be null ... we do that consistently
     static class EntityNode extends NodeBase implements Entity
     {
 	private String	entityName;

 	private String	publicId;
 	private String	systemId;
 	private String	notation;

 	private String	value;

 	EntityNode (String name, String pub, String sys, String not)
 	{
 	    entityName = name;
 	    publicId = pub;
 	    systemId = sys;
 	    notation = not;
 	}

 	EntityNode (String name, String value)
 	{
 	    entityName = name;
 	    this.value = value;
 	}

 	public String getNodeName ()
 	    { return entityName; }

 	public short getNodeType ()
 	    { return ENTITY_NODE; }

 	public String getPublicId ()
 	    { return publicId; }

 	public String getSystemId ()
 	    { return systemId; }

 	public String getNotationName ()
 	    { return notation; }

 	public Node cloneNode (boolean ignored)
 	{
 	    EntityNode retval;

 	    retval = new EntityNode (entityName, publicId, systemId,
 			    notation);
 	    retval.setOwnerDocument ((XmlDocument)getOwnerDocument ());
 	    return retval;
 	}

 	public void writeXml (XmlWriteContext context) throws IOException
 	{
 	    Writer out = context.getWriter ();
 	    out.write ("<!ENTITY ");
 	    out.write (entityName);

 	    if (value == null) {
 		if (publicId != null) {
 		    out.write (" PUBLIC '");
 		    out.write (publicId);
 		    out.write ("' '");
 		} else
 		    out.write (" SYSTEM '");
 		out.write (systemId);
 		out.write ("'");
 		if (notation != null) {
 		    out.write (" NDATA ");
 		    out.write (notation);
 		}
 	    } else {
 		out.write (" \"");
 		int length = value.length ();
 		for (int i = 0; i < length; i++) {
 		    char c = value.charAt (i);
 		    if (c == '"')
 			out.write ("&quot;");
 		    else
 			out.write (c);
 		}
 		out.write ('"');
 	    }
 	    out.write (">");
 	}
     }

     static class Nodemap implements NamedNodeMap
     {
 	// package private
 	boolean	readonly;

 	// package private
 	java.util.Vector	list = new java.util.Vector ();

 	// XXX copied from AttributeSet; share implementation!
 	public Node getNamedItem (String name)
 	{
 	    int	length = list.size ();
 	    Node	value;

 	    for (int i = 0; i < length; i++) {
 		value = item (i);
 		if (value.getNodeName ().equals (name))
 		    return value;
 	    }
 	    return null;
 	}

         /**
          * <b>DOM2:</b>
          */
         public Node getNamedItemNS(String namespaceURI, String localName) {
             return null;
         }

 	// XXX copied from AttributeSet; share implementation!
 	public int getLength ()
 	{
 	    return list.size ();
 	}

 	// XXX copied from AttributeSet; share implementation!
 	public Node item (int index)
 	{
 	    if (index < 0 || index >= list.size ())
 		return null;
 	    return (Node) list.elementAt (index);
 	}


 	public Node removeNamedItem (String name)
 	throws DOMException
 	{
 	    throw new DomEx (DOMException.NO_MODIFICATION_ALLOWED_ERR);
 	}

         /**
          * <b>DOM2:</b>
          */
         public Node removeNamedItemNS(String namespaceURI, String localName)
             throws DOMException
         {
 	    throw new DomEx(DOMException.NO_MODIFICATION_ALLOWED_ERR);
         }

 	// caller guarantees (e.g. from parser) uniqueness
 	public Node setNamedItem (Node item) throws DOMException
 	{
 	    if (readonly)
 		throw new DomEx (DOMException.NO_MODIFICATION_ALLOWED_ERR);
 	    list.addElement (item);
 	    return null;
 	}

         /**
          * <b>DOM2:</b>
          */
         public Node setNamedItemNS(Node arg) throws DOMException {
             if (readonly) {
                 throw new DomEx(DomEx.NO_MODIFICATION_ALLOWED_ERR);
             }

             list.addElement(arg);
             return null;
         }

     }
 }
	/*
	* $Id$
	*
	* The Apache Software License, Version 1.1
	*
	*
	* Copyright (c) 2000 The Apache Software Foundation. All rights
	* reserved.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions
	* are met:
	*
	* 1. Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	*
	* 2. Redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in
	* the documentation and/or other materials provided with the
	* distribution.
	*
	* 3. The end-user documentation included with the redistribution,
	* if any, must include the following acknowledgment:
	* "This product includes software developed by the
	* Apache Software Foundation (http://www.apache.org/)."
	* Alternately, this acknowledgment may appear in the software itself,
	* if and wherever such third-party acknowledgments normally appear.
	*
	* 4. The names "Crimson" and "Apache Software Foundation" must
	* not be used to endorse or promote products derived from this
	* software without prior written permission. For written
	* permission, please contact apache@apache.org.
	*
	* 5. Products derived from this software may not be called "Apache",
	* nor may "Apache" appear in their name, without prior written
	* permission of the Apache Software Foundation.
	*
	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
	* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
	* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
	* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
	* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
	* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
	* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	* SUCH DAMAGE.
	* ====================================================================
	*
	* This software consists of voluntary contributions made by many
	* individuals on behalf of the Apache Software Foundation and was
	* originally based on software copyright (c) 1999, Sun Microsystems, Inc.,
	* http://www.sun.com. For more information on the Apache Software
	* Foundation, please see <http://www.apache.org/>.
	*/

	package org.apache.xerces.tree;


	import java.io.OutputStreamWriter;
	import java.io.OutputStream;
	import java.io.Writer;
	import java.io.IOException;
	import java.util.Dictionary;
	import java.util.Enumeration;
	import java.util.Hashtable;

	import org.w3c.dom.*;

	import org.xml.sax.SAXException;

	//Don't need this looks like.
	//import org.apache.crimson.parser.Parser;


	/**
	* Class representing a DTD in DOM Level 1; this class exists purely
	* for editor support, and is of dubious interest otherwise.
	*
	* @author David Brownell
	* @version $Revision$
	*/
	final class Doctype extends NodeBase implements DocumentType
	{
	// Stuff generated during parsing ...
	private String name;
	private Nodemap entities;
	private Nodemap notations;

	// ... stuff assigned by apps separately
	private String publicId;
	private String systemId;
	private String internalSubset;


	// package private
	Doctype (String n)
	{
	name = n;
	entities = new Nodemap ();
	notations = new Nodemap ();
	}

	// package private
	Doctype (String pub, String sys, String subset)
	{
	publicId = pub;
	systemId = sys;
	internalSubset = subset;
	}

	// package private
	Doctype(String name, String publicId, String systemId,
	String internalSubset)
	{
	this.name = name;
	this.publicId = publicId;
	this.systemId = systemId;
	this.internalSubset = internalSubset;
	}

	// package private
	void setPrintInfo (String pub, String sys, String subset)
	{
	publicId = pub;
	systemId = sys;
	internalSubset = subset;
	}


	/**
	* Writes out a textual DTD, trusting that any internal subset text
	* is in fact well formed XML.
	*/
	public void writeXml (XmlWriteContext context) throws IOException
	{
	Writer out = context.getWriter ();
	Element root = getOwnerDocument ().getDocumentElement ();

	out.write ("<!DOCTYPE ");
	out.write (root == null ? "UNKNOWN-ROOT" : root.getNodeName ());

	if (systemId != null) {
	if (publicId != null) {
	out.write (" PUBLIC '");
	out.write (publicId);
	out.write ("' '");
	} else
	out.write (" SYSTEM '");
	out.write (systemId);
	out.write ("'");
	}
	if (internalSubset != null) {
	out.write (XmlDocument.eol);
	out.write ("[");
	out.write (internalSubset);
	out.write ("]");
	}
	out.write (">");
	out.write (XmlDocument.eol);
	}

	/** DOM: Returns DOCUMENT_TYPE_NODE */
	public short getNodeType ()
	{ return DOCUMENT_TYPE_NODE; }

	/** DOM: Returns the name declared for the document root node. */
	public String getName ()
	{ return name; }

	/** DOM: Returns the name declared for the document root node. */
	public String getNodeName ()
	{ return name; }

	/** DOM: NYI
	* @deprecated Not yet implemented.
	*/
	public Node cloneNode (boolean deep)
	{
	// XXX
	throw new RuntimeException (getMessage ("DT-000"));
	}

	/**
	* DOM: Returns the internal, external, and unparsed entities
	* declared in this DTD.
	*/
	public NamedNodeMap getEntities ()
	{ return entities; }

	/** DOM: Returns the notations declared in this DTD. */
	public NamedNodeMap getNotations ()
	{ return notations; }

	/**
	* The public identifier of the external subset.
	* @since DOM Level 2
	*/
	public String getPublicId() {
	return publicId;
	}

	/**
	* The system identifier of the external subset.
	* @since DOM Level 2
	*/
	public String getSystemId() {
	return systemId;
	}

	/**
	* The internal subset as a string.
	* @since DOM Level 2
	*/
	public String getInternalSubset() {
	return internalSubset;
	}

	// package private
	void setOwnerDocument (XmlDocument doc)
	{
	super.setOwnerDocument (doc);
	if (entities != null)
	for (int i = 0; entities.item (i) != null; i++)
	((NodeBase)entities.item (i)).setOwnerDocument (doc);
	if (notations != null)
	for (int i = 0; notations.item (i) != null; i++)
	((NodeBase)notations.item (i)).setOwnerDocument (doc);
	}


	/** Adds a notation node. */
	// package private
	void addNotation (String name, String pub, String sys)
	{
	NotationNode node = new NotationNode (name, pub, sys);
	node.setOwnerDocument ((XmlDocument)getOwnerDocument ());
	notations.setNamedItem (node);
	}

	/**
	* Adds an entity node for an external entity, which
	* could be parsed or unparsed.
	*/
	// package private
	void addEntityNode (String name, String pub, String sys, String not)
	{
	EntityNode node = new EntityNode (name, pub, sys, not);
	node.setOwnerDocument ((XmlDocument)getOwnerDocument ());
	entities.setNamedItem (node);
	}

	/** Adds an entity node for an internal parsed entity. */
	// package private
	void addEntityNode (String name, String value)
	{
	if ("lt".equals (name) \|\| "gt".equals (name)
	\|\| "apos".equals (name) \|\| "quot".equals (name)
	\|\| "amp".equals (name))
	return; // predeclared, immutable

	EntityNode node = new EntityNode (name, value);
	node.setOwnerDocument ((XmlDocument)getOwnerDocument ());
	entities.setNamedItem (node);
	}

	/** Marks the sets of entities and notations as readonly. */
	// package private
	void setReadonly ()
	{
	entities.readonly = true;
	notations.readonly = true;
	}


	static class NotationNode extends NodeBase implements Notation
	{
	private String notation;
	private String publicId;
	private String systemId;

	NotationNode (String name, String pub, String sys)
	{
	notation = name;
	publicId = pub;
	systemId = sys;
	}

	public String getPublicId ()
	{ return publicId; }

	public String getSystemId ()
	{ return systemId; }

	public short getNodeType ()
	{ return NOTATION_NODE; }

	public String getNodeName ()
	{ return notation; }

	public Node cloneNode (boolean ignored)
	{
	NotationNode retval;

	retval = new NotationNode (notation, publicId, systemId);
	retval.setOwnerDocument ((XmlDocument)getOwnerDocument ());
	return retval;
	}

	public void writeXml (XmlWriteContext context) throws IOException
	{
	Writer out = context.getWriter ();
	out.write ("<!NOTATION ");
	out.write (notation);
	if (publicId != null) {
	out.write (" PUBLIC '");
	out.write (publicId);
	if (systemId != null) {
	out.write ("' '");
	out.write (systemId);
	}
	} else {
	out.write (" SYSTEM '");
	out.write (systemId);
	}
	out.write ("'>");
	}
	}


	// DOM permits the children to be null ... we do that consistently
	static class EntityNode extends NodeBase implements Entity
	{
	private String entityName;

	private String publicId;
	private String systemId;
	private String notation;

	private String value;

	EntityNode (String name, String pub, String sys, String not)
	{
	entityName = name;
	publicId = pub;
	systemId = sys;
	notation = not;
	}

	EntityNode (String name, String value)
	{
	entityName = name;
	this.value = value;
	}

	public String getNodeName ()
	{ return entityName; }

	public short getNodeType ()
	{ return ENTITY_NODE; }

	public String getPublicId ()
	{ return publicId; }

	public String getSystemId ()
	{ return systemId; }

	public String getNotationName ()
	{ return notation; }

	public Node cloneNode (boolean ignored)
	{
	EntityNode retval;

	retval = new EntityNode (entityName, publicId, systemId,
	notation);
	retval.setOwnerDocument ((XmlDocument)getOwnerDocument ());
	return retval;
	}

	public void writeXml (XmlWriteContext context) throws IOException
	{
	Writer out = context.getWriter ();
	out.write ("<!ENTITY ");
	out.write (entityName);

	if (value == null) {
	if (publicId != null) {
	out.write (" PUBLIC '");
	out.write (publicId);
	out.write ("' '");
	} else
	out.write (" SYSTEM '");
	out.write (systemId);
	out.write ("'");
	if (notation != null) {
	out.write (" NDATA ");
	out.write (notation);
	}
	} else {
	out.write (" \"");
	int length = value.length ();
	for (int i = 0; i < length; i++) {
	char c = value.charAt (i);
	if (c == '"')
	out.write (""");
	else
	out.write (c);
	}
	out.write ('"');
	}
	out.write (">");
	}
	}

	static class Nodemap implements NamedNodeMap
	{
	// package private
	boolean readonly;

	// package private
	java.util.Vector list = new java.util.Vector ();

	// XXX copied from AttributeSet; share implementation!
	public Node getNamedItem (String name)
	{
	int length = list.size ();
	Node value;

	for (int i = 0; i < length; i++) {
	value = item (i);
	if (value.getNodeName ().equals (name))
	return value;
	}
	return null;
	}

	/**
	* <b>DOM2:</b>
	*/
	public Node getNamedItemNS(String namespaceURI, String localName) {
	return null;
	}

	// XXX copied from AttributeSet; share implementation!
	public int getLength ()
	{
	return list.size ();
	}

	// XXX copied from AttributeSet; share implementation!
	public Node item (int index)
	{
	if (index < 0 \|\| index >= list.size ())
	return null;
	return (Node) list.elementAt (index);
	}


	public Node removeNamedItem (String name)
	throws DOMException
	{
	throw new DomEx (DOMException.NO_MODIFICATION_ALLOWED_ERR);
	}

	/**
	* <b>DOM2:</b>
	*/
	public Node removeNamedItemNS(String namespaceURI, String localName)
	throws DOMException
	{
	throw new DomEx(DOMException.NO_MODIFICATION_ALLOWED_ERR);
	}

	// caller guarantees (e.g. from parser) uniqueness
	public Node setNamedItem (Node item) throws DOMException
	{
	if (readonly)
	throw new DomEx (DOMException.NO_MODIFICATION_ALLOWED_ERR);
	list.addElement (item);
	return null;
	}

	/**
	* <b>DOM2:</b>
	*/
	public Node setNamedItemNS(Node arg) throws DOMException {
	if (readonly) {
	throw new DomEx(DomEx.NO_MODIFICATION_ALLOWED_ERR);
	}

	list.addElement(arg);
	return null;
	}

	}
	}