xml/relaxng/testData/highlighting/rng/good-external-ref.rng

<grammar xmlns="http://relaxng.org/ns/structure/1.0" ns="urn:test:simple.rng">
  <start>
    <ref name="start" />
  </start>

  <define name="start">
    <externalRef href="include.rng" />

    <ref name="start" />
  </define>
</grammar>