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Added zero cardinality constraint rules #317

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Sep 26, 2020
Merged

Added zero cardinality constraint rules #317

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11 changes: 9 additions & 2 deletions modules/slang/src/main/scala/es/weso/slang/SLang2Clingo.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -158,9 +158,16 @@ trait SLang2Clingo {
| node(X), pred(P), shape(S),
| #count { V: arcWithShape(X,P,S,V) } = T .
|
|countPropShape(X,P,S,0):-
| node(X),
| pred(P),
| shape(S),
| not arcWithShape(X,P,S,_).
|
|% #show arcWithShape/4 .
|arcWithShape(X,P,S,V):-arc(X,P,V),hasShape(V,S).
|
|node(X):-shapeMap(X,_).
|node(X):-arc(X,_,_).
|node(X):-arc(_,_,X).
|pred(P):-arc(_,P,_).
Expand All @@ -179,7 +186,7 @@ trait SLang2Clingo {
private def ground(node: RDFNode,
label: Label,
rdf: RDFReader,
schema: SchemaS): IO[Program] =
schema: SchemaS): IO[Program] =
for {
shape <- schema.getLabel(label).fold(
IO.raiseError[SLang](new RuntimeException(s"Label $label not found in Schema. Available labels: ${schema.availableLabels.mkString(",")}"))
Expand Down Expand Up @@ -277,7 +284,7 @@ trait SLang2Clingo {

private def getPred(pp: PropPath): IRI = pp match {
case Pred(iri) => iri
case _ =>
case _ =>
throw new Exception(s"Unsupported $pp yet")
}

Expand Down