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RE: Namespaces, W3C XML Schema (was Re: ANN: SAX Filters for NamespaceProcessing)
- From: "Simon St.Laurent" <simonstl@simonstl.com>
- To: "Bullard, Claude L (Len)" <clbullar@ingr.com>
- Date: Tue, 21 Aug 2001 15:54:46 -0400
On 21 Aug 2001 12:48:12 -0500, Bullard, Claude L (Len) wrote:
> Has anyone written a concise description of the limits
> of the validation power of XML Schemas, say one that
> considers the Schematron assertions? IOW, how many
> coals to the shovelfull and and how many shovels full
> to fill the bin?
Murata Makoto, Dongwon Lee, and Murali Mani. "Taxonomy of XML Schema
Languages using Formal Language Theory." in Conference Proceedings,
Extreme Markup Languages 2001, p. 153-166. (Abstract:
http://www.extrememarkup.com/extreme/2001/wednesday.htm#3)
It examines DTD, W3C XML Schema, DSD, XDuce, RELAX Core, and TREX, not
Schematron per se, but I would expect Schematron to have expressive
powers in the RELAX/TREX zone, perhaps even more. Schematron is
intriguingly off the charts for a lot of this.
I'm not sure that article is presently available to the world (I have a
printed copy of the proceedings), but it's fascinating stuff.
Simon St.Laurent