Text processing on XSLT 2.0

Working on projects such as XBiblio/Citeproc lead by Bruce D'Arcus
I have realized that even as far as the XSLT 2.0 working draft goes in
regards to bringing Perl'esque type text processing to the XML
developer it is still up to the developer to fine-tune these
capabilities to cover their specific needs.  For example, a spell
checker.

Can anyone who may have extended experience in regards to the
development of such capabilities using XSLT share with the rest of us
your experience?

-- 
<M:D/>

:: M. David Peterson ::
XML & XML Transformations, C#, .NET, and Functional Languages Specialist