The model of this element is based on the tagUsage element of the Text Encoding Initiative (TEI).
<elementSpec ident="tagUsage" module="MEI.header">
<desc xml:lang="en">Documents the usage of a specific element within the document.</desc>
<content>
</content>
<constraintSpec ident="context_attribute_requires_content" scheme="schematron">
<constraint>
<sch:rule context="@context">
<sch:assert role="warning" test="not(normalize-space(.) eq '')">@context attribute should
contain an XPath expression.</sch:assert>
</sch:rule>
</constraint>
</constraintSpec>
<attList>
<attDef ident="name" usage="req">
<desc xml:lang="en">Name of the element.</desc>
</attDef>
<attDef ident="context" usage="opt">
<desc xml:lang="en">Circumstances in which the element appears, an XPath expression.</desc>
<datatype>
<rng:data type="string"/>
</datatype>
</attDef>
<attDef ident="occurs" usage="opt">
<desc xml:lang="en">Number of occurrences in the defined context.</desc>
<datatype>
<rng:data type="nonNegativeInteger"/>
</datatype>
</attDef>
<attDef ident="withid" usage="opt">
<desc xml:lang="en">Number of occurrences in the defined context that have an
<att>xml:id</att>
attribute.</desc>
<datatype>
<rng:data type="nonNegativeInteger"/>
</datatype>
</attDef>
</attList>
<remarks xml:lang="en">
<p>The model of this element is based on the <ref target="https://tei-c.org/release/doc/tei-p5-doc/en/html/ref-tagUsage.html">tagUsage</ref> element of the Text Encoding Initiative (TEI).</p>
</remarks>
</elementSpec>