Netzwelt titanic-magazin.de liferea/snownews scraping

#!/usr/bin/ruby
require 'net/http'
require 'rexml/document'
require 'iconv'

def get_item url
        item = Net::HTTP.get_response(URI.parse(url)).body
        item.scan(/<td class="tt_news-bodytext">(.*?)<\/td>/m)[0][0]
end

feed = REXML::Document.new($stdin.readlines.join)

feed.elements.each('rss/channel/item') do |element|
        element.elements['description'].text = Iconv.new('UTF-8', 'ISO-8859-1').iconv(get_item(element.elements['link'].text))
end

feed.write($stdout, 0)