[XML-SIG] 'searching' XML documents to extract 'chunks' of XML

[Dieter Maurer]

Hello Tony
 > One thing I really need to do is to 'query' XML documents, and 
 > extract portions of them. In Perl I would use the XQL module, based 
 > on the XQL http://www.w3.org/TandS/QL/QL98/pp/xql.html W3C note, 
 > which allows you to select tags,  and optionally, their children 
 > based upon quite a few search criteria (eg value of attribute or 
 > whether the parent has an attribute or content that matches your 
 > search term).
If you can first transform your XML document into a DOM,
you may find "xsl-pattern" useful.
"xsl-pattern" is an implementation of the XSL pattern subset
(which is a XQL subset) -- see
	URL:http://www.handshake.de/pyprojects/xslpattern.html
for details.

Recently, 4XSL has been announced on this list (look into the
archive). At the time of the announcement, only match patterns
had been implemented. But, this may have changed meantime.

Dieter