plain_text.go
func newPlainText(ln *line, rslt *result, src *source, parent element, opts *Options) *plainText {
	return &plainText{
		elementBase: newElementBase(ln, rslt, src, parent, opts),
		insertBr:    ln.tokens[0] == doublePipe,
	}
}
func newPlainText(ln *line, rslt *result, src *source, parent element, opts *Options) *plainText {
	return &plainText{
		elementBase: newElementBase(ln, rslt, src, parent, opts),
		insertBr:    ln.tokens[0] == doublePipe,
	}
}
// newPlainText creates and returns a plain text.