まんま >> require "hpricot" => true >> doc = Hpricot("<p> We have <i>so much</i> to say.</p>") => #<Hpricot::Doc {elem <p> " We have " {elem <i> "so much" </i>} " to say." </p>}> >> doc.search("i").empty => #<Hpricot::Elements[{emptyelem <i>}]> >> doc.to_html => "<p> We have <i></i> to say.</p>"</hpricot::elements[{emptyelem>