# File format.rb, line 582
    def formatString (s, unused_var_name=nil, unused_aBinding=nil)
      #might want to put a %0 to pad w/ 0's
      precision = ((@g_e =~ /[Ee]/) ? @fraction : @sig_figs)
      result = sprintf("%#{@total_size}.#{precision}#{@g_e}", s)
      result
    end