<!-- http://www.w3.org/TR/xmldsig2ed-tests/#XMLLANG Check that implementations of [XML-C14N1.1] handle xml:lang attributes as defined in [XML-C14N1.1] --> <XPath xmlns:ietf="http://www.ietf.org" > (//. | //@* | //namespace::*) [ancestor-or-self::ietf:e11 or ancestor-or-self::ietf:e12] </XPath>