[jdom-interest] SAXBuilder enhancement request /2

[Bradley S. Huffman]

Dennis Sosnoski writes:

> I'd personally recommend two options - one to discard character data 
> sequences consisting only of whitespace, the other to strip leading and 
> trailing whitespace from character data content. It could also be done 
> using a filter, as ERH suggests, though this might be a little more 
> complicated - for stripping trailing whitespace you'd need to make sure 
> you have the entire character data sequence available, rather than just 
> a portion.

FYI, in SAXHandler we have the entire sequence of characters between tags.

I think SAX's XMLFilter is too complicated for this application, so my I
suggest a simple CharacterHandler as follows:

    public interface CharacterHandler {

        /** Return String for Text node */
        public String text(char[] data);

        /** Return String for CDATA node */
        public String cdata(char[] data);
   }

and a setCharacterHandler(CharacterHandler) in SAXBuilder.

Another option would be to allow JDOMFactory to return null from the text and
cdata methods to indicate to SAXHandler there is nothing to add.

Brad