class Metanorma::Generic::Converter

def docidentifier_cleanup(xmldoc) 

def docidentifier_cleanup(xmldoc)
  docid = xmldoc.at("//bibdata/docidentifier") or return
  docid.text.empty? or return
  id = docidentifier_from_template(xmldoc) or return
  (id.empty? and docid.remove) or docid.children = id
end