<?xml version="1.0" encoding="UTF-8"?>
<grammar ns="tag:textalign.net,2015:ns" xmlns:a="http://relaxng.org/ns/compatibility/annotations/1.0" xmlns:local="tag:textalign.net,2015:ns" xmlns="http://relaxng.org/ns/structure/1.0">
  <include href="TAN-core.rng">
    <define name="source-list">
      <a:documentation>Class 3 files allow zero or many sources</a:documentation>
      <zeroOrMore>
        <ref name="source-item"/>
      </zeroOrMore>
    </define>
    <define name="source-id-opt">
      <optional>
        <ref name="internal-xml-id"/>
      </optional>
    </define>
    <define name="definition-non-core">
      <interleave>
        <ref name="definition-class-3"/>
        <ref name="definition-non-class-3"/>
      </interleave>
    </define>
    <define name="alter-non-core">
      <interleave>
        <ref name="alter-class-3"/>
        <ref name="alter-non-class-3"/>
      </interleave>
    </define>
    <define name="body-content-non-core">
      <interleave>
        <ref name="body-content-class-3"/>
        <ref name="body-content-non-class-3"/>
      </interleave>
    </define>
  </include>
  <define name="definition-class-3">
    <zeroOrMore>
      <ref name="defn-group-type"/>
    </zeroOrMore>
  </define>
  <define name="definition-non-class-3">
    <empty/>
  </define>
  <define name="alter-class-3">
    <empty/>
  </define>
  <define name="alter-non-class-3">
    <empty/>
  </define>
  <define name="body-content-class-3">
    <empty/>
  </define>
  <define name="body-content-non-class-3">
    <empty/>
  </define>
</grammar>
