On Monday, October 26, 2020 at 9:52:45 AM UTC-4 Clare Paul wrote: > Holger, > I've attached a couple of files. One file contains everything required to > execute the SPARQL rule: ex:RuleForFindingBracketedNumbers. The rule's > REGEX pattern has four backslashes prior to a square bracket. > > An example of a bracketed number is [4]. The sample resources are > instances of the class ex:CandidateResource. The rule finds resource labels > that match a REGEX pattern and types them as ex:BracketedNumber. > > The second file contains the SPARQL CONSTRUCT that was used to test the > query. The REGEX pattern has two backslashes prior to a square bracket. > > The SPARQL CONSTRUCT was copied and then pasted as the value for > sh:construct. > > After adding the backslashes to the REGEX pattern in the rule, everything > worked as expected on EDG 6.4.2. > > Thanks, > Clare > > Note: for some reason, Google Groups flags an error when I try to include > the files. > >
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# baseURI: urn:x-evn-master:square_brackets_and_shacl_rules # imports: http://datashapes.org/graphql # imports: http://topbraid.org/teamworkconstraints @prefix ex: <http://example.org/ontologies/Square_Brackets_and_SHACL_Rules#> . @prefix metadata: <http://topbraid.org/metadata#> . @prefix owl: <http://www.w3.org/2002/07/owl#> . @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . @prefix sh: <http://www.w3.org/ns/shacl#> . @prefix teamwork: <http://topbraid.org/teamwork#> . ex:BracketedNumber a owl:Class ; a sh:NodeShape ; rdfs:label "BracketedNumber" ; rdfs:subClassOf owl:Thing ; . ex:CandidateResource a owl:Class ; a sh:NodeShape ; rdfs:label "CandidateResource" ; rdfs:subClassOf owl:Thing ; sh:rule ex:RuleForFindingBracketedNumbers ; . ex:RuleForFindingBracketedNumbers a sh:SPARQLRule ; rdfs:comment """ Four backslashes are required before square brackets in REGEX pattern. Error message with two backslashes before a square bracket: Failed to execute rules: org.apache.jena.query.QueryParseException: Lexical error at line 24, column 27. Encountered: \"[\" (91), after : \"'\\\" """ ; rdfs:comment "This rule types the found resource as ex:BracketedNumber." ; rdfs:label "RuleForFindingBracketedNumbers" ; sh:construct """ CONSTRUCT {$this rdf:type ex:BracketedNumber .} WHERE { #?res a ex:CandidateResource . $this rdfs:label ?res_label . #---------- VALUES ?find_pattern {'\\\\[[0-9]\\\\]'} FILTER(REGEX(?res_label,?find_pattern)) } """ ; sh:prefixes <urn:x-evn-master:square_brackets_and_shacl_rules> ; . ex:txt01 a ex:CandidateResource ; rdfs:label "abc[5]def" ; . ex:txt02 a ex:CandidateResource ; rdfs:label "abc[z]def" ; . ex:txt03 a ex:CandidateResource ; rdfs:label "abcdef" ; . <http://teamwork.topbraidlive.org/ontologyprojects#Ontology> rdfs:subClassOf teamwork:Vocabulary ; . teamwork:Vocabulary rdfs:subClassOf owl:Ontology ; . <urn:x-evn-master:square_brackets_and_shacl_rules> a <http://teamwork.topbraidlive.org/ontologyprojects#Ontology> ; a teamwork:Vocabulary ; a owl:Ontology ; metadata:status metadata:UnderDevelopmentStatus ; <http://topbraid.org/swa#defaultNamespace> "http://example.org/ontologies/Square_Brackets_and_SHACL_Rules#"; ; teamwork:rootClass rdfs:Resource ; rdfs:label "Square Brackets and SHACL Rules" ; owl:imports <http://datashapes.org/graphql> ; owl:imports <http://topbraid.org/teamworkconstraints> ; sh:declare [ sh:namespace "http://example.org/ontologies/Square_Brackets_and_SHACL_Rules#"^^<http://www.w3.org/2001/XMLSchema#anyURI> ; sh:prefix "ex" ; ] ; .
