Read and parse RSS feed

require 'open-uri'
require 'rss/0.9'
require 'rss/1.0'
require 'rss/2.0'
require 'rss/parser'
url = 'http://some.host/rss.xml'
rss = RSS::Parser.parse(open(url){fdfd.read})
puts rss.items.collect{itemitem.title}.join("\n")