[jdom-interest] Consuming elements while parsing

[bob mcwhirter]

> Applications use it by registering listeners (ElementListener) associated to 
> an XPath expression to select the elements they are interested in. Currently, 
> the XPath support is trivial and based on the Jakarta RegExp regular 
> expression matcher rather than a real XPath engine (maybe the jaxen.org team 
> may enhance that ;-) )

fwiw, I think James Strachan has done Just That with dom4j.  He's added
a Pattern interface for jaxen, to allow things of this nature to work
efficiently, I belive.

	-bob