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Hello all,
I have some problems with querying for unicode literals. If I have a query like:
select ?x where { ?x ?y ?z FILTER ( ?z == "ö" ). }
I get exceptions when parsing. This only breaks when in a filter though.
I attach a "test-case"
I see unicode and sparql used to be a problem way back:
http://rdflib.net/issues/2006/11/14/another_problem_with_unicode_strings_in_sparql_queries/issue
and
http://rdflib.net/issues/2006/11/01/unicode_strings_in_sparql_query_is_not_supported/issue
but it was apparently fixed.
- --
Gunnar Aastrand Grimnes
gunnar.grimnes [AT] dfki.de
DFKI GmbH
Knowledge Management
Trippstadter Strasse 122
D-67663 Kaiserslautern
Germany
Office: +49 631 205 75-117
Mobile: +49 177 277 4397
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#!/usr/bin/env python
import traceback
import rdflib
# the real unicode
q=u"SELECT ?x where { ?x ?y ?z FILTER (?y = '\xf6')}"
# utf8 str
utf8q=q.encode("utf-8")
# q2
q2=u"SELECT ?x where { ?x ?y '\xf6' }"
utf8q2=q2.encode("utf-8")
# now: type(utf8q) == str
g=rdflib.Graph()
try:
print "Q1: unicode"
g.query(q)
print "OK!"
except:
traceback.print_exc()
try:
print "Q1: utf8"
g.query(utf8q)
print "OK"
except:
traceback.print_exc()
try:
print "Q2: unicode"
g.query(q2)
print "OK"
except:
traceback.print_exc()
try:
print "Q2: utf-8"
g.query(utf8q2)
print "OK"
except:
traceback.print_exc()
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