RE: XML result of Schema validation

XSLT 1.0 is not schema-aware. It works only off the original InfoSet.
Schema-validation should have no impact whatsoever.
 
Michael Kay
http://www.saxonica.com/


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From: xmlschema-dev-request@w3.org [mailto:xmlschema-dev-request@w3.org] On
Behalf Of Matheson, Jack K
Sent: 21 April 2006 16:03
To: xmlschema-dev@w3.org
Subject: RE: XML result of Schema validation



I was trying to find my answer in XML Schema Part 1: Structures (and also
the primer).

When you say 'it will normally see the values before whitespace
normalization', would this apply mostly to XSLT 1.0 processors? Also, does
'normally' mean that behavior is slightly undefined?

 

Is it necessary to construct the XDM from the PSVI before acting as input to
an XSLT 1.0 processor?

 

Thanks again!

-Jack

 


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From: Michael Kay [mailto:mike@saxonica.com] 
Sent: Friday, April 21, 2006 4:44 AM
To: Matheson, Jack K; xmlschema-dev@w3.org
Subject: RE: XML result of Schema validation

 

Which spec are you reading? For the effect on an XSLT transformation or on
XQuery, you need to understand

 

(a) the PSVI generated by the schema processor

 

(b) the mapping from the PSVI to the XDM: see
http://www.w3.org/TR/xpath-datamodel/#const-psvi

 

Regarding your specific questions:

 

- if the stylesheet/query looks at text nodes or string values, it will
normally see the values before whitespace normalization. If it looks at
typed values it will normally see the values after such normalization.
Processors are allowed to reconstruct the string value (and the text nodes)
from the typed value, but I think this is only likely to happen in practice
when you store the data in an XML-enabled relational database.

 

- yes, default values are added to the XDM document.

 

Michael Kay

http://www.saxonica.com/

 


  _____  


From: xmlschema-dev-request@w3.org [mailto:xmlschema-dev-request@w3.org] On
Behalf Of Matheson, Jack K
Sent: 20 April 2006 16:05
To: xmlschema-dev@w3.org
Subject: XML result of Schema validation

I'm having trouble finding information on the XML result of a Schema
validation; in particular, what happens when the result of a validation acts
as the input to a transformation. Does a stylesheet see
whitespace-normalized versions of text values from the input document? Also,
are default values for elements and attributes inserted for the stylesheet
to see?

 

It's certainly possible that I'm simply reading the spec incorrectly, so any
help is appreciated!

 

Thanks,

-Jack