Thank you, Mike.
The name "exists" does not describe very well what the
function actually does. A far-better name is "non-empty", and
it is immediately perceived as the really complementary
function to empty().
Actually, my thinking was the opposite. I think the meaning of
exists(@a) is fairly intuitive, whereas the meaning of empty(@a) is not.
But this just proves that choosing names that will enable people to
guess correctly what the function does is never easy.
Michael Kay
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list