This package provides a sparql-query function to query an RDF store.
Additionally, it provides an interface to write SPARQL queries using
S-expressions.
Using default settings (triple store at http://localhost:8890 and CSV output format):
(use-modules (sparql driver)
(sparql lang))
(sparql-query
(let ((rdf (prefix "http://www.w3.org/1999/02/22-rdf-syntax-ns#"))
(rdfs (prefix "http://www.w3.org/2000/01/rdf-schema#"))
(internal (prefix "http://localhost/")))
(select '(subject predicate object)
`((subject predicate object)
(subject ,(rdf "type") ,(internal "Sample")))
'((group by object)))))
Using non-default settings:
(use-modules (sparql driver)
(sparql lang))
(sparql-query
(let ((rdf (prefix "http://www.w3.org/1999/02/22-rdf-syntax-ns#"))
(rdfs (prefix "http://www.w3.org/2000/01/rdf-schema#"))
(internal (prefix "http://localhost/")))
(select '(subject predicate object)
`((subject predicate object)
(subject ,(rdf "type") ,(internal "Sample")))
'((group by object))))
#:host "1.2.3.4"
#:port 8080
#:type "text/xml"
#:token "...")