+ $author["author-id"] = XML::getFirstNodeValue($xpath, '/atom:feed/atom:author/atom:id/text()');
+
+ // See https://tools.ietf.org/html/rfc4287#section-3.2.2
+ $value = XML::getFirstNodeValue($xpath, 'atom:author/atom:uri/text()');
+ if ($value != "") {
+ $author["author-link"] = $value;
+ }