Feedparser
Feedparser.Utils
iex> HTTPoison.start
iex> body = HTTPoison.get("http://l3kn.de").body
iex> Feedparser.Utils.get_feeds(body)
["http://www.l3kn.de/feed.xml"]
iex> HTTPoison.start
iex> body = HTTPoison.get("http://l3kn.de").body
iex> Feedparser.Utils.get_feeds(body)
["http://www.l3kn.de/feed.xml"]