custom tags using an HTMLEditorKit subclass

[Scott Presley]

I've created a subclass of HTMLEditorKit called CustomEditorKit(see code below) At the point in the code marked with the 'UGH' comment, I want to check to see if the unknown element is of type <expression>x+4</expression> and create return a Custom View object containing the 'x+4' inside the tags... I figured out how to check to see that the element is indeed 'expression', but it's unclear from reading online and reading through javadoc how to extract the 'x+4'.

Thanks in advance for any help,
Scott

 
public class CustomEditorKit extends HTMLEditorKit
{
   public CustomEditorKit( )
   {
      super( );
   }
 
   public ViewFactory getViewFactory( )
   {
      return new HTMLFactoryX( );
   }
 
   public static class HTMLFactoryX extends HTMLEditorKit.HTMLFactory implements ViewFactory
   {
      public View create( Element elem )
      {
         Object o = elem.getAttributes( ).getAttribute( StyleConstants.NameAttribute );
 
         if( o instanceof HTML.Tag )
         {
            if( o instanceof HTML.UnknownTag )
            {
               String unknowntag = o.toString( );
               if( unknowntag.equalsIgnoreCase( "expression" ) )
 
                 // =======> UGH! <=======

[ July 13, 2004: Message edited by: Scott Presley ]

[Stanislav Lapitsky]

I have an example of the feature.

See
http://java-sl.com/custom_tag_html_kit.html

It's implemented to support <button> tag but can be easy extended.

Regards,
Stas