P5: TEIガイドライン

<rng:element name="alt">
<rng:ref name="att.global.attributes"/>
<rng:ref name="att.pointing.attributes"/>
<rng:attribute name="targets">
 <rng:list>
  <rng:ref name="data.pointer"/>
  <rng:oneOrMore>
   <rng:ref name="data.pointer"/>
  </rng:oneOrMore>
 </rng:list>
</rng:attribute>
<rng:optional>
 <rng:attribute name="mode">
  <rng:choice>
   <rng:value>excl</rng:value>
   <rng:value>incl</rng:value>
  </rng:choice>
 </rng:attribute>
</rng:optional>
<rng:optional>
 <rng:attribute name="weights">
  <rng:list>
   <rng:oneOrMore>
    <rng:ref name="data.probability"/>
   </rng:oneOrMore>
  </rng:list>
 </rng:attribute>
</rng:optional>
<rng:empty/>
</rng:element>

element alt
{
   att.global.attributes,
   att.pointing.attributes,
   attribute targets { list { data.pointer, data.pointer+ } },
   attribute mode { "excl" | "incl" }?,
   attribute weights { list { data.probability+ } }?,
   empty
}