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  • To: <michael.h.kay@n...>,<AndrewWatt2000@a...>
  • Subject: RE: Ten new XQuery, XSLT 2.0 and XPath 2.0 Working
  • From: "Michael Rys" <mrys@m...>
  • Date: Fri, 9 May 2003 00:48:01 -0700
  • Cc: <xml-dev@l...>
  • Thread-index: AcMVgiceog5iz9oQTpSYtCke5tQXDQAfOZ2A
  • Thread-topic: Ten new XQuery, XSLT 2.0 and XPath 2.0 Working

Title: Message

Also note that we have been working hard to get meaningful semantics for untyped documents. This gives you strong typing if you validated and have typed data and weak typing with implicit casts if you have untyped data. The later you can even statically type if you want to.

 

Best regards

Michael

 

-----Original Message-----
From: Michael Kay [mailto:michael.h.kay@n...]
Sent: Thursday, May 08, 2003 9:51 AM
To: AndrewWatt2000@a...
Cc: xml-dev@l...
Subject: RE: Ten new XQuery, XSLT 2.0 and XPath 2.0 Working

 

What I wonder about for XSLT 2.0 / XPath 2.0 is to take the current specs back to the drawing board, in a sense similar to  

what  XSLT 1.0 did relative to DSSSL, and produce a non-typed XML Query/Transformation language.  

 

Try telling someone who has rowed the Atlantic and is within sight of land, that you think they could finish faster if they started again and headed for a different destination. You would get roughly the same reaction.

 

 > What are the strongest arguments in favour of strong typing in XSLT 2.0? Who is pushing those arguments?

The arguments have been frequently rehearsed. For people who are using XML Schema, it seems very natural indeed that the stylesheet should take advantage of the type information that is thereby available. For example, if you have 23 elements with the same type, being able to match on the type is a real convenience. And there are many people who ARE using XML Schema.

 

Don't ever imagine that everyone on the XQuery group wants strong typing and everyone on the XSL group doesn't. That's a complete fallacy. Both groups feel that they are now close to achieving the goals that they set out to achieve.

 

Michael Kay


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