> Using a *single* transformation, is there a way to create an 
> XSLT 2.0 on-the-fly and apply it to a document? I tried many 
> different ways, but I think that's impossible because, even 
> if I can save the XSLT in a document (xsl:result-document), I 
> can't include it at run-time.

It's possible using an extension such as
saxon:compile-stylesheet()/saxon:transform(). If you don't have such an
extension with your chosen processor, it's entirely possible that you could
write your own.

http://www.saxonica.com/documentation/extensions/functions/compile-styleshee
t.html
http://www.saxonica.com/documentation/extensions/functions/transform.html

Michael Kay
http://www.saxonica.com/