rdf_preprocess_html

rdf_preprocess_html(&$variables)

function rdf_preprocess_html(&$variables) {
  // Adds RDF namespace prefix bindings in the form of an RDFa 1.1 prefix
  // attribute inside the html element.
  if (!isset($variables['html_attributes']['prefix'])) {
    $variables['html_attributes']['prefix'] = array();
  }
  foreach (rdf_get_namespaces() as $prefix => $uri) {
    $variables['html_attributes']['prefix'][] = $prefix . ': ' . $uri . " ";
  }
}