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RE: XSD question

• To: "DuCharme, Bob \(LNG-CHO\)" <bob.ducharme@l...>,<xml-dev@l...>
• Subject: RE: XSD question
• From: "Dare Obasanjo" <dareo@m...>
• Date: Thu, 11 Sep 2003 14:56:41 -0700
• Thread-index: AcN4rxC0xITCgOR5R5GqF8cvIW09YAAAEHdA
• Thread-topic: XSD question

> -----Original Message-----
> From: DuCharme, Bob (LNG-CHO) [mailto:bob.ducharme@l...] 
> Sent: Thursday, September 11, 2003 2:52 PM
> To: xml-dev@l...
> Subject:  XSD question
> 
> First, is there any mailing list dedicated to just W3C schema 
> questions? I may have a few in the near future and don't want 
> to clutter up xml-dev. 

xmlschema-dev@w...

> My question us about the use of processContents="lax" with 
> xs:any. The schema Rec part 1 says that for a processContents 
> value of "lax", "If the item, or any items among its 
> [children] if it's an element information item, has a 
> uniquely determined declaration available, it must be *valid* 
> with respect to that definition, that is, *validate*  where 
> you can, don't worry when you can't." I was trying to use a 
> combination of xs:any elements and more specific declarations 
> write a schema that would accept any document, validating 
> only certain elements if they were found, *wherever* they 
> were found. I can do this in RELAX NG, but I'm giving up hope 
> on doing it in XSD, and I think it's because of the 
> "[children]" (as opposed to descendants) part above. 
> 
> Let's say I declare element alpha to have a sequence of one 
> or more xs:any children with processContents="lax". Then I 
> declare element beta to have a specific content model. I can 
> put beta elements and anything else as children of alpha, and 
> if any of those beta elements violate the declared content 
> model, a schema-validating parser will flag it as an error. 
> However, if a beta element that violates the declared content 
> model is a *grandchild* of alpha instead of being a direct 
> child, the schema-validating parser isn't supposed to flag it. 
> 
> Do I understand this correctly?

Yes. 


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