class RDF::N3::Algebra::Str::Concatenation
The subject is a list of strings. The object is calculated as a concatenation of those strings.
@example
("a" "b") string:concatenation :s
Constants
- NAME
- URI
Public Instance Methods
resolve(list)
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The string:concatenation operator takes a list of terms cast to strings and either binds the result of concatenating them to the output variable, removes a solution that does equal the literal object.
List
entries are stringified using [SPARQL::Algebra::Expression.cast](ruby-rdf.github.io/sparql/SPARQL/Algebra/Expression#cast-class_method).
@param [RDF::N3::List] list @return [RDF::Term] @see RDF::N3::ListOperator#evaluate
# File lib/rdf/n3/algebra/str/concatenation.rb, line 19 def resolve(list) RDF::Literal( list.to_a.map do |o| SPARQL::Algebra::Expression.cast(RDF::XSD.string, o) end.join("") ) end