Re: Derivation of mixed content models 2nd

hans meier <hansmeier000@yahoo.de> writes:

> Hello,
> I came across the following thread on the derivation of mixed
> content models.
> http://lists.w3.org/Archives/Public/xmlschema-dev/2001Oct/0113.html
> If I am not misinterpreting Henry´s answer, the follwing combinations
> are allowed
>  
> Derivation by extension
> -----------------------
> base type           derived type
> mixed="true"       mixed="true"
> mixed="false"      mixed="false"
> 
> Derivation by restriction
> -------------------------
> base type           derived type
> mixed="true"       mixed="true"
> mixed"false"        mixed="false"
> mixed="true"       mixed="false"  if all element content is optional
>  
> so it should be an error, if there is mixed="false" in
> the base type and mixed="true" in the restricted type.
>  
> So why do XSV 2.4 and MSXML 4.0 SP2 say, that the following is valid?

XSV failed to check that case, will be fixed in next release, sorry.

ht
-- 
  Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
                      Half-time member of W3C Team
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Received on Wednesday, 11 June 2003 05:50:59 UTC