P5: Linee guida per la codifica e l'interscambio del testo elettronico

<rng:element name="rdgGrp">
<rng:ref name="att.global.attributes"/>
<rng:ref name="att.textCritical.attributes"/>
<rng:group>
 <rng:oneOrMore>
  <rng:choice>
   <rng:group>
    <rng:ref name="rdgGrp"/>
    <rng:optional>
     <rng:ref name="wit"/>
    </rng:optional>
   </rng:group>
   <rng:zeroOrMore>
    <rng:group>
     <rng:optional>
      <rng:group>
       <rng:ref name="lem"/>
       <rng:optional>
        <rng:ref name="wit"/>
       </rng:optional>
      </rng:group>
     </rng:optional>
     <rng:group>
      <rng:ref name="model.rdgLike"/>
      <rng:optional>
       <rng:ref name="wit"/>
      </rng:optional>
     </rng:group>
    </rng:group>
   </rng:zeroOrMore>
  </rng:choice>
 </rng:oneOrMore>
</rng:group>
</rng:element>

element rdgGrp
{
   att.global.attributes,
   att.textCritical.attributes,
   ( ( ( rdgGrp, wit? ) | ( ( lem, wit? )?, ( model.rdgLike, wit? ) )* )+ )
}