class RDF::N3::Algebra::Time::GmTime

For a date-time format string, its time:gmtime is the result of formatting the Universal Time of processing in the format given. If the format string has zero length, then the ISOdate standard format is used. ‘[ is time:gmtime of “”]` the therefore the current date time. It will end with “Z” as a timezone code.

@see www.w3.org/TR/xpath-functions/#func-current-dateTime

Constants

NAME
URI

Public Instance Methods

resolve(resource, position:) click to toggle source

The time:gmTime operator takes string or dateTime and returns current time formatted according to the subject.

@param [RDF::Term] resource @param [:subject, :object] position @return [RDF::Term] @see RDF::N3::ResourceOperator#evaluate

# File lib/rdf/n3/algebra/time/gm_time.rb, line 17
def resolve(resource, position:)
  case position
  when :subject
    return nil unless resource.literal?
    resource = "%FT%T%:z" if resource.to_s.empty?
    RDF::Literal(DateTime.now.new_offset(0).strftime(resource.to_s))
  when :object
    return nil unless resource.literal? || resource.variable?
    resource
  end
end