module Tnql
  grammar RegistrationStatus
    rule registration_status
      space? status_keyword more_statuses:(','? space? ('and' space)?  status_keyword)* <Nodes::RegistrationStatusNode>
    end

    rule status_keyword
      ('final' / 'provisional' / 'referenced' / 'treatment' space 'only') <Nodes::StatusKeywordNode>
    end
  end
end