P5: Guidelines for Electronic Text Encoding and Interchange

<rng:element name="castItem">
<rng:ref name="att.global.attributes"/>
<rng:optional>
 <rng:attribute name="type" a:defaultValue="role">
  <rng:choice>
   <rng:value>role</rng:value>
   <rng:value>list</rng:value>
  </rng:choice>
 </rng:attribute>
</rng:optional>
<rng:zeroOrMore>
 <rng:choice>
  <rng:text/>
  <rng:ref name="model.gLike"/>
  <rng:ref name="model.castItemPart"/>
  <rng:ref name="model.phrase"/>
  <rng:ref name="model.global"/>
 </rng:choice>
</rng:zeroOrMore>
</rng:element>

element castItem
{
   att.global.attributes,
   attribute type { "role" | "list" }?,
   ( text | model.gLike | model.castItemPart | model.phrase | model.global )*
}