code: func (t *tScreen) writeString(s string) {
  	if t.buffering {
  		io.WriteString(&t.buf, s)
  	} else {
  		io.WriteString(t.out, s)
  	}
  }
docs: // writeString sends a string to the terminal. The string is sent as-is and
  // this function does not expand inline padding indications (of the form
  // $<[delay]> where [delay] is msec). In order to have these expanded, use
  // TPuts. If the screen is "buffering", the string is collected in a buffer,
  // with the intention that the entire buffer be sent to the terminal in one
  // write operation at some point later.