gonum.org/v1/gonum@v0.14.0/graph/formats/rdf/testdata/mk_vocab.rb (about)

     1  #!/usr/bin/env ruby
     2  # Generate vocab.jsonld and vocab.html from vocab.ttl and vocab_template.
     3  #
     4  # Generating vocab.jsonld is equivalent to running the following:
     5  #
     6  #    jsonld --compact --context vocab_context.jsonld --input-format ttl vocab.ttl  -o vocab.jsonld
     7  require 'linkeddata'
     8  require 'haml'
     9  require 'active_support'
    10  
    11  File.open("vocab.jsonld", "w") do |f|
    12    r = RDF::Repository.load("vocab.ttl")
    13    JSON::LD::API.fromRDF(r, useNativeTypes: true) do |expanded|
    14      # Remove leading/trailing and multiple whitespace from rdf:comments
    15      expanded.each do |o|
    16        c = o[RDF::RDFS.comment.to_s].first['@value']
    17        o[RDF::RDFS.comment.to_s].first['@value'] = c.strip.gsub(/\s+/m, ' ')
    18      end
    19      JSON::LD::API.compact(expanded, File.open("vocab_context.jsonld")) do |compacted|
    20        # Create vocab.jsonld
    21        f.write(compacted.to_json(JSON::LD::JSON_STATE))
    22  
    23        # Create vocab.html using vocab_template.haml and compacted vocabulary
    24        template = File.read("vocab_template.haml")
    25        
    26        html = Haml::Engine.new(template, :format => :html5).render(self,
    27          ontology:   compacted['@graph'].detect {|o| o['@id'] == "http://json-ld.github.io/normalization/tests/vocab#"},
    28          classes:    compacted['@graph'].select {|o| o['@type'] == "rdfs:Class"}.sort_by {|o| o['rdfs:label']},
    29          properties: compacted['@graph'].select {|o| o['@type'] == "rdf:Property"}.sort_by {|o| o['rdfs:label']}
    30        )
    31        File.open("vocab.html", "w") {|fh| fh.write html}
    32      end
    33    end
    34  end