[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: Who can implement W3C XML Schema ?
Just to be very, painfully, tediously, clear-- the following two declarations are NOT equivalent: <element name="myElem"/> <element name="myElem"> <complexType> <complexContent> <restriction base="anyType"/> </complexContent> </complexType> </element> The first declaration is equivalent to the following: <element name="myElem" type="anyType"/> Which I hope makes the reason for the use of restriction for empty element declarations a tiny bit clearer. > -----Original Message----- > From: Ronald Bourret [mailto:rpbourret@r...] > Sent: Friday, March 22, 2002 1:38 PM > To: xml-dev@l... > Subject: Re: Who can implement W3C XML Schema ? > > > Oops. This was in response to Jeff Lowery's clarification of the dual > nature of anyType in the following, and why an instance of myElem can > only have empty content. > > > <element name="myElem"> > > <complexType> > > <complexContent> > > <restriction base="anyType"/> > > </complexContent> > > </complexType> > > </element> > > Sorry about the confusion. > > -- Ron > > Ronald Bourret wrote: > > > > OK. Now that I finally understand why this is invalid, what > is the point > > of allowing an xsd:restriction element with no children? Is it > > specifically to allow me to restrict content down to > emptiness and yet > > still get the OO advantages (?) of using a restriction? > > ----------------------------------------------------------------- > The xml-dev list is sponsored by XML.org <http://www.xml.org>, an > initiative of OASIS <http://www.oasis-open.org> > > The list archives are at http://lists.xml.org/archives/xml-dev/ > > To subscribe or unsubscribe from this list use the subscription > manager: <http://lists.xml.org/ob/adm.pl> >
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