Like the very usable Beautiful Soup:
<a href="http:&#x2F;&#x2F;www.crummy.com&#x2F;software&#x2F;BeautifulSoup&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.crummy.com&#x2F;software&#x2F;BeautifulSoup&#x2F;</a>