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

<rng:element name="textLang">
<rng:ref name="att.global.attributes"/>
<rng:optional>
 <rng:attribute name="mainLang">
  <rng:ref name="data.language"/>
 </rng:attribute>
</rng:optional>
<rng:optional>
 <rng:attribute name="otherLangs">
  <rng:list>
   <rng:zeroOrMore>
    <rng:ref name="data.language"/>
   </rng:zeroOrMore>
  </rng:list>
 </rng:attribute>
</rng:optional>
<rng:ref name="macro.phraseSeq"/>
</rng:element>

element textLang
{
   att.global.attributes,
   attribute mainLang { data.language }?,
   attribute otherLangs { list { data.language* } }?,
   macro.phraseSeq
}