func blocksText(bs []md.Block) string {
	var d strings.Builder
	for _, b := range bs {
		io.WriteString(&d, text(b))
		fmt.Fprintln(&d)
	}
	return d.String()
}

// inlineText returns all the next in a slice of inline nodes.
func inlineText(ins []md.Inline) string {
	var buf bytes.Buffer
	for _, in := range ins {
		in.PrintText(&buf)
	}
	return buf.String()
}