def shorten_url(url):
"""Shortens a given url by collapsing it to a pair
of identifiers denoting namespace and term, like
``rdfs:label``."""
#TODO: impl
base, term = struct_uri(url)
nspc = ns.get_ns(base)
if nspc:
return '{}:{}'.format(nspc.name, term)
# TODO: if no namespace is present, shorten shomehow else
return url
def extract_ns_terms(g):
"""Collects terms from graph rdf and assigns them
to the namespaces they come from."""
# TODO: filtern, so dasz einzelne namespaces bearbeitet weden
# koennen; self.rdf in namespace klasse damit befuellen.
for t in g:
for u in t:
if u:
url, term = struct_uri(u)
if term:
nsp = ns.get_ns(url)
if nsp:
#print '\n\nextract namespace term from rdf data:',
#print '{}..{}'.format(url[:10],url[-10:]), nsp.name, term
dest = [nsp.classes, nsp.properties][int(term.islower())]
if not term in dest:
dest.append(term)