Hi Christoph,
Ok, I see your point and we are looking into this ...
Note if you insert the unicode characters themselves then they are retrieved
successfully :
$ ../bin/isql 1111
Connected to OpenLink Virtuoso
Driver: 06.00.3126 OpenLink Virtuoso ODBC Driver
OpenLink Interactive SQL (Virtuoso), version 0.9849b.
Type HELP; for help and EXIT; to exit.
SQL> DB.DBA.TTLP (FILE_TO_STRING_OUTPUT ('./test.nt'),
'http://my_graph_fixed_again', 'http://my_graph_fixed_again', 0);
Done. -- 3 msec.
SQL> SPARQL SELECT ?s FROM <http://my_graph_fixed_again> WHERE { ?s ?p ?o . };
s
VARCHAR
_______________________________________________________________________________
http://www.owl-ontologies.com/2009/10/22/Ontology1256204650.owl
http://www.owl-ontologies.com/2009/10/22/Ontology1256204650.owl#ä
http://www.owl-ontologies.com/2009/10/22/Ontology1256204650.owl#ö
3 Rows. -- 7 msec.
SQL>
Best Regards
Hugh Williams
Professional Services
OpenLink Software
Web: http://www.openlinksw.com
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On 3 Feb 2010, at 18:19, Christoph Rieß wrote:
> Hi again,
> I must say that the issue of escaping unicode chars in N-Triple (which
> is a subset of N3 and only 7bit ASCII) needs to be addressed. There are
> different methods of unicode character encoding in absolute URIs
> discussed in point 5 in N-Triples [1]. What is virtuosos development
> team opinion about having more robust parsers?
> It would also be nice if parsing problems will lead to exceptions not
> adding confusing triples into the store.
> btw. escaping of \uhhhh inside Literals (object column) works fine ;-)
>
> [1] http://www.w3.org/2001/sw/RDFCore/ntriples/
>
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