How difficult will it be to code a progress indicator that
would show the percentage of the process when we parse and
transform an XML into another XML/HTML using an XSL
It's easy enough to do this for a serial process such as parsing. It's
not really possible to do it for a non-serial process such as
transformation: there is no way of predicting how much work remains to
be done. (XSLT is a Turing-complete language, therefore it's not even
possible to predict whether a transformation will ever finish).
It's possible, of course, that some heuristic might be devised that
works sufficiently often to be useful. But the transformations where you
want a progress indication are probably exactly those where the
performance is non-linear, so I think this is unlikely.
Michael Kay
Software AG
home: Michael(_dot_)H(_dot_)Kay(_at_)ntlworld(_dot_)com
work: Michael(_dot_)Kay(_at_)softwareag(_dot_)com
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list