# File lib/chronic/ordinal.rb, line 28
    def self.scan_for_days(token)
      if token.word =~ /^(\d*)(st|nd|rd|th)$/
        unless $1.to_i > 31 || $1.to_i < 1
          OrdinalDay.new(token.word.to_i)
        end
      end
    end