if err := w.encode(b); err != nil {
			return err
		}
	}

	return nil
}

func (w *Writer) insertSoftLineBreak() error {
	w.line[w.i] = '='
	w.i++

	return w.insertCRLF()
}

func (w *Writer) insertCRLF() error {
	w.line[w.i] = '\r'
	w.line[w.i+1] = '\n'
	w.i += 2

	return w.flush()
}

func (w *Writer) flush() error {
	if _, err := w.w.Write(w.line[:w.i]); err != nil {