func doString
  fvar(s,v,i)
  s = code("'" + Mask + "'")

  for(i = 1; i <= _data_count_; i++) 
    v = v + lcode(point("Str" + i)) + ','
  end

  sys.initall()
  if(linked(Result))
    println(res, ' = ', s, '.format(', code(v), ')')
    event(onFString, res)
  else
    event(onFString, s && '.format(' && code(v) && ')')
  end
end

func Result
  return(res)
end