Add whitespace to canonical triple term representation.

Author: gkellogg

lib/rdf/ntriples/writer.rb

@@ -230,7 +230,7 @@ def format_statement(statement, **options)
     # @param  [Hash{Symbol => Object}] options ({})
     # @return [String]
     def format_tripleTerm(statement, **options)
-      "<<(%s %s %s)>>" % statement.to_a.map { |value| format_term(value, **options) }
+      "<<( %s %s %s )>>" % statement.to_a.map { |value| format_term(value, **options) }
     end
 
     ##

lib/rdf/reader.rb

@@ -333,7 +333,7 @@ def initialize(input = $stdin,
     # Returns the base URI determined by this reader.
     #
     # @example
-    #   reader.prefixes[:dc]  #=> RDF::URI('http://purl.org/dc/terms/')
+    #   reader.base_uri  #=> RDF::URI('http://example.com/')
     #
     # @return [RDF::URI]
     # @since  0.3.0

spec/nquads_spec.rb

@@ -180,51 +180,59 @@
     end
   end
 
-  # FIXME: quoted triples are deprecated
-  context "quoted triples" do
-    statements = {
+  context "triple terms" do
+    ill_statements = {
       "subject-iii": '<<<http://example/s1> <http://example/p1> <http://example/o1>>> <http://example/p> <http://example/o> <http://example/g> .',
       "subject-iib": '<<<http://example/s1> <http://example/p1> _:o1>> <http://example/p> <http://example/o> <http://example/g> .',
       "subject-iil": '<<<http://example/s1> <http://example/p1> "o1">> <http://example/p> <http://example/o> <http://example/g> .',
       "subject-bii": '<<_:s1 <http://example/p1> <http://example/o1>>> <http://example/p> <http://example/o> <http://example/g> .',
       "subject-bib": '<<_:s1 <http://example/p1> _:o1>> <http://example/p> <http://example/o> <http://example/g> .',
       "subject-bil": '<<_:s1 <http://example/p1> "o">> <http://example/p> <http://example/o> <http://example/g> .',
       "subject-ws":  '<< <http://example/s1> <http://example/p1> <http://example/o1> >> <http://example/p> <http://example/o> <http://example/g> .',
-      "object-iii":  '<http://example/s> <http://example/p> <<<http://example/s1> <http://example/p1> <http://example/o1>>> <http://example/g> .',
-      "object-iib":  '<http://example/s> <http://example/p> <<<http://example/s1> <http://example/p1> _:o1>> <http://example/g> .',
-      "object-iil":  '<http://example/s> <http://example/p> <<<http://example/s1> <http://example/p1> "o1">> <http://example/g> .',
-      "object-ws":   '<http://example/s> <http://example/p> << <http://example/s1> <http://example/p1> <http://example/o1> >> <http://example/g> .',
+      "recursive-subject": '<<(<<(<http://example/s2> <http://example/p2> <http://example/o2>)>> <http://example/p1> <http://example/o1>)>> <http://example/p> <http://example/o> <http://example/g> .',
+    }
+
+    statements = {
+      "object-iii":  '<http://example/s> <http://example/p> <<(<http://example/s1> <http://example/p1> <http://example/o1>)>> <http://example/g> .',
+      "object-iib":  '<http://example/s> <http://example/p> <<(<http://example/s1> <http://example/p1> _:o1)>> <http://example/g> .',
+      "object-iil":  '<http://example/s> <http://example/p> <<(<http://example/s1> <http://example/p1> "o1")>> <http://example/g> .',
+      "object-ws":   '<http://example/s> <http://example/p> <<( <http://example/s1> <http://example/p1> <http://example/o1> )>> <http://example/g> .',
     }
 
     context "without rdfstar option" do
       it "Raises an error" do
         expect do
-          expect {RDF::Graph.new << described_class.new(statements.values.first)}.to raise_error(RDF::ReaderError)
+          expect {RDF::Repository.new << RDF::NQuads::Reader.new(statements.values.first)}.to raise_error(RDF::ReaderError)
         end.to write(:something).to(:error)
       end
     end
 
-    statements.each do |name, st|
-      context name do
-        let(:graph) do
-          g = RDF::Graph.new
-          expect do
-            g << RDF::NQuads::Reader.new(st, rdfstar: true)
-          end.to write('[DEPRECATION]').to(:error)
-          g
+    context "with rdfstar option" do
+      ill_statements.each do |name, st|
+        context name do
+          it "Raises an error" do
+            expect do
+              expect {RDF::Repository.new << RDF::NQuads::Reader.new(statements.values.first)}.to raise_error(RDF::ReaderError)
+            end.to write(:something).to(:error)
+          end
         end
+      end
 
-        it "creates two statements" do
-          expect(graph.count).to eql(1)
-        end
+      statements.each do |name, st|
+        context name do
+          let(:graph) do
+            RDF::Repository.new {|r| r << RDF::NQuads::Reader.new(st, rdfstar: true)}
+          end
+
+          it "creates a statement" do
+            expect(graph.count).to eql(1)
+          end
 
-        it "has a statement whose subject or object is a statement" do
-          referencing = graph.statements.first
-          expect(referencing).to be_a_statement
-          if referencing.subject.statement?
-            expect(referencing.subject).to be_a_statement
-          else
+          it "statements which are object of another statement are triple terms" do
+            referencing = graph.statements.first
+            expect(referencing).to be_a_statement
             expect(referencing.object).to be_a_statement
+            expect(referencing.object).to be_tripleTerm
           end
         end
       end

spec/ntriples_spec.rb

@@ -479,19 +479,13 @@
         context name do
           let(:graph) {parse(st, rdfstar: true)}
 
-          it "creates two unquoted statements" do
+          it "creates an unquoted statement" do
             expect(graph.count).to eql(1)
             graph.statements.each do |stmt|
               expect(stmt).not_to be_quoted
             end
           end
 
-          it "has a statement whose object is a statement" do
-            referencing = graph.statements.first
-            expect(referencing).to be_a_statement
-            expect(referencing.object).to be_a_statement
-          end
-
           it "statements which are object of another statement are triple terms" do
             referencing = graph.statements.first
             expect(referencing).to be_a_statement