Sha256: 0d18217e4f64c2b3cb8970385d4930259e8d01ad6e7c830382a54d546ea6e86d
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Size: 1.47 KB
Versions: 15
Compression:
Stored size: 1.47 KB
Contents
#!/usr/bin/env ruby
# bel_rdfschema: Dump RDF schema for BEL.
# usage: bel_rdfschema --format [ntriples | nquads | turtle]
require 'bel'
require 'optparse'
require 'set'
require 'open-uri'
options = {
format: 'ntriples'
}
OptionParser.new do |opts|
opts.banner = '''Dumps RDF schema for BEL.
Usage: bel_rdfschema'''
opts.on('-f', '--format FORMAT', 'RDF file format.') do |format|
options[:format] = format.downcase
end
end.parse!
unless ['ntriples', 'nquads', 'turtle'].include? options[:format]
$stderr.puts "Format was not one of: ntriples, nquads, or turtle"
exit 1
end
class Serializer
attr_reader :writer
def initialize(stream, format)
rdf_writer = find_writer(format)
@writer = rdf_writer.new($stdout, {
:stream => stream
}
)
end
def <<(trpl)
@writer.write_statement(RDF::Statement(*trpl))
end
def done
@writer.write_epilogue
end
private
def find_writer(format)
case format
when 'nquads'
BEL::RDF::RDF::NQuads::Writer
when 'turtle'
begin
require 'rdf/turtle'
BEL::RDF::RDF::Turtle::Writer
rescue LoadError
$stderr.puts """Turtle format not supported.
Install the 'rdf-turtle' gem."""
raise
end
when 'ntriples'
BEL::RDF::RDF::NTriples::Writer
end
end
end
@rdf_writer = ::Serializer.new(true, options[:format])
BEL::RDF::vocabulary_rdf.each do |trpl|
@rdf_writer << trpl
end
# vim: ts=2 sw=2:
# encoding: utf-8
Version data entries
15 entries across 15 versions & 1 rubygems