To my knowledge the more advanced SGML/XML content management systems
such as Texcel's Information Manager (
can handle your examples. Of course these are neither public search
engines nor plug-ins.

What would be really nice IMO would be to have a standard way of
expressing such queries to let me query the information without having
to know what software is holding the information and learn the
proprietary APIs. I hope that the QL'98 - The Query Languages Workshop
( will get this work started.

It's really a pity that good open standards and nice ideas don't turn
into free running code overnight. :)

/Fredrik Lindgren

JR Gardner wrote:
> The following point raises a very interesting theoretical issue re.
> On Fri, 4 Dec 1998, Fredrik Lindgren wrote:
> > I agree that this is a great way to use XML and XSL, though I'd say that
> > what you are really doing at the server side is producing a new document
> > by using XSL as a query language on the real source document. IMO it is
> > hard to draw a distinct line between querying a data source and
> > presenting it.
> Currently, to my knowledge, there are no search enginces or plug-ins which
> will search within an XML document to, say, extract the material falling
> within tag "x", or all authors (<author></author>) named James
> (<author>James</author>), thus use of the XML tagged data identification
> in a text-based data resource (e.g., academic article, etc.) can only be
> selectively displayed through multiple style sheets (cf. MS IE5beta
> presentation at GCA '98).
> If I am incorrect, please let me know of such a search engine.  Otherwise,
> I am curious if anyone else has encountered this query/rendering
> tag-exploitation issue.
> jr gardner
> __________________________
> John Robert Gardner, Ph.D.
> ____________________________________________________
> Obermann Center         &    The Graduate College
>   for Advanced Studies
>                The University of Iowa
> ____________________________________________________
> "Your dreams must always lead you beyond comfort"