sax2, ignorable whitespace

I want to ignore whitespace,
yet I don't want to mandate a DTD declaration.

question.

Is it possible to specify the DTD from within a sax handler,
or
anyone have appropriate code for the characters() method to
identify ignorable ws please?



TIA,

-- 
Dave Pawson
XSLT XSL-FO FAQ.
http://www.dpawson.co.uk