 Syntax rules for attributes in
        <a href="documents.html#syntax-document-xml" id="syntax-document-xml_xref7">documents in the XML syntax</a>.
        are defined in
        the XML specification <a href="references.html#refsXML" id="refsXML_xref5">[XML]</a>.
      </p>
      <ul id="attributes-basic-syntax-list">
<li>
<dfn id="attribute-name" title="syntax-attribute-name">attribute names</dfn>
        <a href="terminology.html#must-requirement" id="must-requirement_xref29">must</a>
        consist of