RE: facets

http://www.w3.org/TR/xmlschema-2/#src-single-facet-value

Schema Representation Constraint: Single Facet Value 

Unless otherwise specifically allowed by this specification (Multiple patterns (?4.3.4.3) and Multiple enumerations (?4.3.5.3)) any given .constraining facet. can only be specified once within a single derivation step. 

Anli Shundi
TIBCO Software Inc.
www.tibco.com

> -----Original Message-----
> From: xmlschema-dev-request@w3.org
> [mailto:xmlschema-dev-request@w3.org]On Behalf Of Mark Thomson
> Sent: Thursday, October 09, 2003 9:54 PM
> To: xmlschema-dev@w3.org
> Subject: facets
> 
> 
> 
> 
> Hi All,
> 
> The XML representation summary of the element <restriction> (the one 
> inside <simpleType>) allows all facet elements to occur indefinetly as
> the children of <restriction>. 
> 
> This is ok for elements like <enumeration> or <pattern>, but for 
> facets like minLength or maxLength, I don't think it is allowed. The 
> problem is that I can't see any thing in the document that says that 
> <minLength>, for example, cannot occur more than once. And if it is 
> really disallowed, then what isn't it disallowed in the regular 
> expression specifying the element content?
> 
> My question is: what facet elements can occur only once as children of
> <restriction>? If the answer is none, then how should a <restriction>
> with two <minLength>s, for example, be interpreted?  What part of the
> specs talk about this?
> 
> Thanks.
> 
> 
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Received on Friday, 10 October 2003 13:14:59 UTC