libxml2-2.7.7/test/relaxng/595792-ext.rng

<?xml version="1.0" encoding="UTF-8"?>
<grammar ns="" xmlns="http://relaxng.org/ns/structure/1.0">
  <start>
    <element name="t">
      <ref name="tcont"/>
    </element>
  </start>
  <define name="tcont">
    <text/>
  </define>
</grammar>