• From: "Michael Kay" <mike@s...>
• To: "'Rick Jelliffe'" <rjelliffe@a...>,<xml-dev@l...>
• Date: Fri, 26 Oct 2007 12:40:45 +0100

> 
> The actual task I am doing is not actually Schematron, it is 
> about removing families of elements from XSD schemas (an 
> element, its declaration, uses and any unique descendents.)
> 

Processing schemas at the XSD document level is quite tricky - you
potentially have to understand the horrors of xs:redefine, chameleon
includes, and the like. I've done it a few times, but only for schemas that
satisfy strict constraints (e.g. no redefines).

The latest Saxon version (currently in beta-testing) has the ability to
output an XML representation of the schema component model, which is much
more amenable to this kind of processing. Unfortunately it doesn't have the
ability to round-trip it back to XSDL source, which I guess is what many
schema transformation applications are really looking for, but I don't think
that would be hard to add.

Michael Kay
http://www.saxonica.com/

• Follow-Ups:
  • RE: XSLT question on transitive closures
    • From: Rick Jelliffe <rjelliffe@a...>

• References:
  • The awesome power of Schematron + XPath 2.0 ... Able to express all my data requirements!
    • From: "Costello, Roger L." <costello@m...>
  • Re: The awesome power of Schematron + XPath 2.0 ... Able to express all my data requirements!
    • From: "Fraser Goffin" <goffinf@g...>
  • Re: The awesome power of Schematron + XPath 2.0 ... Able to express all my data requirements!
    • From: "Fraser Goffin" <goffinf@g...>
  • XSLT question on transitive closures
    • From: Rick Jelliffe <rjelliffe@a...>
  • RE: XSLT question on transitive closures
    • From: "Michael Kay" <mike@s...>
  • Re: XSLT question on transitive closures
    • From: David Carlisle <davidc@n...>
  • Re: XSLT question on transitive closures
    • From: Rick Jelliffe <rjelliffe@a...>