- From: Michael Kay <mike@saxonica.com>
- Date: Fri, 5 Jun 2009 18:57:05 +0100
- To: "'Costello, Roger L.'" <costello@mitre.org>, <xmlschema-dev@w3.org>
> > if the base type allows open content, then a type derived > from it by > > extension must also allow open content. > > Now I'm really confused. > > What value is mode="none"? > > I thought that the point of mode="none" was to enable a > subtype to "turn off" the openness of its parent type? If > this is not the case, then what value is mode="none"? You can turn off the open content when deriving by restriction, but not when deriving by extension. Makes sense really - restriction can only reduce the permitted content, extension can only increase it. Regards, Michael Kay http://www.saxonica.com/ http://twitter.com/michaelhkay
Received on Friday, 5 June 2009 18:02:27 UTC