Hi Andrew,
On 10/26/2012 11:13 PM, Andrew Pennebaker wrote:
There seems to be no consistent way to query for programming languages
based on name. Examples:
http://dbpedia.org/page/D_(programming_language)
<http://dbpedia.org/page/D_%28programming_language%29>
rdfs:label "D (programming language)"@en
dbpprop:name "D programming language"
owl:sameAs freebase:"D (programming language)"
foaf:name "D programming language"
vs.
http://dbpedia.org/page/C++
rdfs:label "C++"@en
dbpprop:name "C++"
owl:samwAs freebase:"C++"
foaf:name "C++"
Since there's no standard convention for whether "programming
language", "(programming language)", "programming_language",
"(programming_language", or "" is part of a name for a programming
language in dbpedia, I have no idea how to consistently search by name.
I'd like to create some sort of SPARQL query that returns
http://dbpedia.org/page/D_(programming_language)
<http://dbpedia.org/page/D_%28programming_language%29> for "D" and
http://dbpedia.org/page/C++ for "C++", but I don't know how do to this.
Unless at least one of the various triples for programming languages
uses a consistent naming convention, I'll have to hack it by querying
first against name + " (programming_language)", and falling back to
name + "(programming language", name + " programming language" when no
results are found. But I'd like a much more robust method.
You can use regex to match it.
So for D programming language you can use:
SELECT * WHERE { ?language rdf:type dbpedia-owl:ProgrammingLanguage.
?language rdfs:label ?lbl. filter(regex(?lbl, '^D+', 'i') ) }
and for C++ you can use:
SELECT * WHERE { ?language rdf:type dbpedia-owl:ProgrammingLanguage.
?language rdfs:label ?lbl. filter(regex(?lbl, '^C\\+\\++', 'i') ) }
--
Cheers,
Andrew Pennebaker
www.yellosoft.us <http://www.yellosoft.us>
Hope that helps.
--
Kind Regards
Mohamed Morsey
Department of Computer Science
University of Leipzig
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