+
+ if 'format' in element.attrib:
+ formats = re.split(r"[, ]+",
+ element.attrib['format'])
+ else:
+ formats = [None]
+
+ try:
+ def_href = make_url(formats[0])
+ def_err = u""
+ except self.options['urlmapper'].MaterialNotFound:
+ def_err = material_err
+ def_href = u""