# File lib/rouge/lexers/ocaml.rb, line 22
      def self.keyopts
        @keyopts ||= Set.new %w(
          != # & && ( ) * \+ , - -. -> . .. : :: := :> ; ;; < <- =
          > >] >} ? ?? [ [< [> [| ] _ ` { {< | |] } ~
        )
      end