func (e *plainText) WriteTo(w io.Writer) (int64, error) {
	var bf bytes.Buffer

	// Write the plain text.
	bf.WriteString(strings.Join(e.ln.tokens[1:], space))

	if len(e.ln.tokens) > 1 && e.insertBr {
		bf.WriteString(htmlBr)
	}

	// Write the children's HTML.
	if len(e.children) > 0 {
		bf.WriteString(lf)

		if i, err := e.writeChildren(&bf); err != nil {
			return i, err
		}
	}

	// Write the buffer.
	i, err := w.Write(bf.Bytes())

	return int64(i), err
}
func (e *plainText) WriteTo(w io.Writer) (int64, error) {
	var bf bytes.Buffer

	// Write the plain text.
	bf.WriteString(strings.Join(e.ln.tokens[1:], space))

	if len(e.ln.tokens) > 1 && e.insertBr {
		bf.WriteString(htmlBr)
	}

	// Write the children's HTML.
	if len(e.children) > 0 {
		bf.WriteString(lf)

		if i, err := e.writeChildren(&bf); err != nil {
			return i, err
		}
	}

	// Write the buffer.
	i, err := w.Write(bf.Bytes())

	return int64(i), err
}
// WriteTo writes data to w.