<rdgGrp>

<rdgGrp> (對應本群組) 原文變異中，匯集兩個或多個認為具有根源關係或於其他方面性質類似的對應本。 12.1 The Apparatus Entry, Readings, and Witnesses
組件 textcrit — 12 Critical Apparatus
除全域屬性以外 att.textCritical (@wit, @type, @cause, @varSeq, @resp, @hand)
屬於
app rdgGrp
可包含
textcrit: lem rdg rdgGrp wit
宣告 

<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? ) )* )+ )
}
例子
<app>
 <lem wit="#El #Ra2">壓</lem>
 <rdgGrp type="orthographic">
  <rdg wit="#zh-tw_zh_tw">壓</rdg>
  <rdg wit="#zh-tw_zh_cn">压</rdg>
 </rdgGrp>
</app>