Re: Deriving a simple type from a complex type

Simon Cox <> writes:

> Is it possible to constrain the character content of a 
> mixed complex type to be one of the built-in simple types?
> e.g.  if I have declared an anyType 
>   <xsd:complexType name="FooType" mixed="true"/>
> can I then derive a type with simple content type="xsd:double" 
> by restriction from this?  How?

  <xs:restriction base="FooType">
     <xs:restriction base="xs:double"/>

Martin Gudgin was right when he said you can't get a _simple_ type
definition by restricting a complex type definition.  Jeff Rafter was
on the right track in suggesting that what was wanted was a complex
type definition with simple content.

Note that _only_ <xs:restriction> within <xs:simpleContent> is allowed 
to have both a base attribute and explicit content, as above.

  Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
          W3C Fellow 1999--2001, part-time member of W3C Team
     2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
	    Fax: (44) 131 650-4587, e-mail:

Received on Monday, 19 March 2001 09:02:27 UTC