libopc/third_party/libxml2-2.7.7/test/relaxng/tutor9_5.rng

<grammar xmlns="http://relaxng.org/ns/structure/1.0">

  <start>
    <element name="addressBook">
      <zeroOrMore>
	<element name="card">
	  <ref name="card.attlist"/>
	</element>
      </zeroOrMore>
    </element>
  </start>

  <define name="card.attlist" combine="interleave">
    <attribute name="name">
      <text/>
    </attribute>
  </define>

  <define name="card.attlist" combine="interleave">
    <attribute name="email">
      <text/>
    </attribute>
  </define>

</grammar>