[relaxng-user] Problems converting <xs:any> schema elements

[Bob Foster]

Let's say you have a schema like:

<xs:schema elementFormDefault="qualified" xml:lang="EN"
	xmlns:xs="http://www.w3.org/2001/XMLSchema"
	targetNamespace="foo">
	<xs:element name="example">
		<xs:complexType>
			<xs:sequence>
				<xs:any namespace="##other" processContents="lax"/>
			</xs:sequence>
		</xs:complexType>
	</xs:element>
</xs:schema>

The rough equivalent of the above written in the compact syntax would be:

default namespace foo = "foo"
start = element example { anybutfoo }
anybutfoo = element * - foo { anycontents }
anycontents = mixed {
	(attribute * { text }
	| any)*
}
any = element * { anycontents }

Trang translates this to RELAX NG as:

<?xml version="1.0" encoding="UTF-8"?>
<grammar ns="foo" xmlns="http://relaxng.org/ns/structure/1.0">
   <start>
     <element name="example">
       <ref name="anybutfoo"/>
     </element>
   </start>
   <define name="anybutfoo">
     <element>
       <anyName>
         <except>
           <name>foo</name>
         </except>
       </anyName>
       <ref name="anycontents"/>
     </element>
   </define>
   <define name="anycontents">
     <mixed>
       <zeroOrMore>
         <choice>
           <attribute>
             <anyName/>
           </attribute>
           <ref name="any"/>
         </choice>
       </zeroOrMore>
     </mixed>
   </define>
   <define name="any">
     <element>
       <anyName/>
       <ref name="anycontents"/>
     </element>
   </define>
</grammar>

Bob Foster
http://xmlbuddy.com/

Spencer Cheng wrote:
 > Hi Folks,
 >
 > I am trying to convert some existing W3C XML schema from MPEG into
 > relaxNG schema using Sun's RNG converter (mainly so I can edit XML
 > documents using nXML). I am running into problems with the conversion of
 > xs:any elements.
 >
 > The original elements typically looks like this.
 >
 > <xsd:any namespace="##other" processContents="lax"/>
 >
 > The output from rngconv looks like
 >
 > <define name="any(lax:##other)5">
 >
 > Which does not validate. Being new to relaxNG, would someone provide
 > some hints on how to fix these manually? I could remove them from the
 > original schema but that seems to be cheating. :)
 >
 > Regards
 > Spencer
 >
 > _______________________________________________
 > relaxng-user mailing list
 > relaxng-user at relaxng.org
 > http://relaxng.org/mailman/listinfo/relaxng-user
 >