Class: RDF::NQuads::Writer

Inherits:

RDF::NTriples::Writer

• Object
• Writer
• RDF::NTriples::Writer
• RDF::NQuads::Writer

show all

Defined in:

lib/rdf/nquads.rb

Overview

Constant Summary

Constant Summary

Constants inherited from RDF::NTriples::Writer

RDF::NTriples::Writer::ESCAPE_ASCII, RDF::NTriples::Writer::ESCAPE_PLAIN

Instance Attribute Summary

Attributes inherited from Writer

#options

Instance Method Summary (collapse)

• - (String) format_quad(subject, predicate, object, context)

  Returns the N-Triples representation of a triple.

• - (String) format_statement(statement)

  Returns the N-Quads representation of a statement.

• - write_quad(subject, predicate, object, context)

  Outputs the N-Quads representation of a statement.

• - write_statement(statement) (also: #insert_statement)

  self.

Methods inherited from RDF::NTriples::Writer

escape, escape_ascii, escape_unicode, escape_utf16, escape_utf32, #format_literal, #format_node, #format_triple, #format_uri, serialize, #write_comment, #write_triple

Methods inherited from Writer

#base_uri, buffer, dump, each, #escaped, #flush, for, format, #format_list, #format_literal, #format_node, #format_term, #format_uri, #initialize, #node_id, open, #prefix, #prefixes, #prefixes=, #puts, #quoted, #to_sym, to_sym, #uri_for, #write_comment, #write_epilogue, #write_graph, #write_prologue, #write_statements, #write_triple, #write_triples

Methods included from Util::Aliasing::LateBound

#alias_method

Methods included from Writable

#<<, #insert, #insert_graph, #insert_reader, #insert_statements, #writable?

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# File 'lib/rdf/nquads.rb', line 127

def format_quad(subject, predicate, object, context)
  s = "%s %s %s " % [subject, predicate, object].map { |value| format_term(value) }
  s += format_term(context) + " " if context
  s + "."
end

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# File 'lib/rdf/nquads.rb', line 115

def format_statement(statement)
  format_quad(*statement.to_quad)
end

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# File 'lib/rdf/nquads.rb', line 105

def write_quad(subject, predicate, object, context)
  puts format_quad(subject, predicate, object, context)
end

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# File 'lib/rdf/nquads.rb', line 92

def write_statement(statement)
  write_quad(*statement.to_quad)
  self
end