Backbonetype.shex

ShEx statement for BackboneType

PREFIX fhir: <http://hl7.org/fhir/> 
PREFIX fhirvs: <http://hl7.org/fhir/ValueSet/>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#> 
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> 

IMPORT <DataType.shex>
IMPORT <Extension.shex>

# Base for datatypes that can carry modifier extensions
<BackboneType> EXTENDS @<DataType> CLOSED {   

    a [fhir:BackboneType]?;

    fhir:modifierExtension @<OneOrMore_Extension>?;  # Extensions that cannot be ignored 
                                            # even if unrecognized 
}  

#---------------------- Cardinality Types (OneOrMore) -------------------

<OneOrMore_Extension> CLOSED {
    rdf:first @<Extension>  ;
    rdf:rest [rdf:nil] OR @<OneOrMore_Extension> 
}