xml/relaxng/testData/highlighting/rng/ref-1.rng

<grammar xmlns="http://relaxng.org/ns/structure/1.0" ns="urn:test:simple.rng">
  <start>
    <ref name="target1" />
    <ref name="target2" />
  </start>

  <define name="target1" />

  <div>
    <define name="target2" />
  </div>
</grammar>