gistfile1.builder

#!/usr/bin/env ruby1.9

require 'rdf'
require 'rdf/rdfxml'
require 'rdf/ntriples'
require 'rdf/isomorphic'


s1 = %(<?xml version="1.0"?>
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
         xmlns:eg="http://example.org/">
 <rdf:Description rdf:about="http://example.org/foo">
   <eg:bar rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">10</eg:bar>
   <eg:baz rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">10</eg:baz>
 </rdf:Description>
</rdf:RDF>)

s2 = %(<http://example.org/foo> <http://example.org/bar> "10"^^<http://www.w3.org/2001/XMLSchema#integer> .
<http://example.org/foo> <http://example.org/baz> "10"^^<http://www.w3.org/2001/XMLSchema#integer> .
)

g1 = RDF::Graph.new
RDF::RDFXML::Reader.new(s1).each {|s| g1 << s}

g2 = RDF::Graph.new
RDF::NTriples::Reader.new(s2).each {|s| g2 << s}

s1 = RDF::Writer.for(:ntriples).dump(g1)
s2 = RDF::Writer.for(:ntriples).dump(g2)

puts g1.to_a.first.object.datatype.class
puts g2.to_a.first.object.datatype.class

puts g1.isomorphic_with?(g2) ? "graphs isomorphic" : "graphs non-isomorphic"
puts g1.to_a.inspect
puts g2.to_a.inspect

puts s1 == s2 ? "strings equivalent" : "strings differ"
puts s1 
puts s2