def listauthors(root):
''' parses xml with lxml objectify parser and calls
filter_authors to extract authors '''
res = SimilaritySet(cutoff=CUTOFF)
if root.algorithm is None:
return res
# the similarity_set callback to replace or remove special characters
res.set_callback(replace)
for alg in root.algorithm:
# hibakezelesek, ha nem letezik a tag akkor ne is nezze
if alg.find("variant") is not None and alg.variant.find("author") is not None:
res.update(filter_authors(alg.variant.author))
return res
