<dataSpec xmlns="http://www.tei-c.org/ns/1.0" rend="add" ident="data.HEXNUM" module="MEI">
<desc xml:lang="en">Hexadecimal number.</desc>
<content>
<dataRef name="string">
<dataFacet name="pattern" value="(#x|U\+)[A-F0-9]+"/>
</dataRef>
</content>
</dataSpec>