# File lib/Getopt/Declare2.rb, line 351
      def matcher(g)
        suffix = !g.nil? ? '([\s\0]+)' : ''
        scalar = super  # contains regex to match a scalar element
        # we match one obligatory element, and one or more optionals ')*'
        return scalar + '(?:[\s\0]+' + scalar + ')*' + suffix
      end