# File lib/sys/filesystem.rb, line 28
      def case_insensitive?
        if path !~ /\w+/
          if RbConfig::CONFIG['host_os'] =~ /darwin|mac|windows|mswin|mingw/i
            true # Assumes HFS
          else
            false
          end
        else
          File.identical?(path, path.swapcase)
        end
      end