teidata.xTruthValue

teidata.xTruthValue (extended truth value) defines the range of attribute values used to express a truth value which may be unknown.
Moduletei — The TEI Infrastructure
Used by
Class:
Element:
Content model
<content>
 <alternate>
  <dataRef name="boolean"/>
  <valList>
   <valItem ident="unknown"/>
   <valItem ident="inapplicable"/>
  </valList>
 </alternate>
</content>
Declaration
<rng:define name="teidata.xTruthValue">
 <rng:choice>
  <rng:data type="boolean"/>
  <rng:choice>
   <rng:value>unknown</rng:value>
   <rng:value>inapplicable</rng:value>
  </rng:choice>
 </rng:choice>
</rng:define>
teidata.xTruthValue = xsd:boolean | ( "unknown" | "inapplicable" )
Note

In cases where where uncertainty is inappropriate, use the datatype teidata.TruthValue.