gistfile1.rb

#!/usr/bin/env ruby

require 'rubygems'
require 'open-uri'
require 'nokogiri'

class Array
  alias :_old_index_op :[]
  def [] a
    if a.is_a?(Regexp) then
      select {|b| b[a]}
    else
      _old_index_op a
    end
  end
end

doc = Nokogiri::XML.parse(open("http://www.8bitpeoples.com/feed/feed.rss"))
links = doc.xpath("//link").map {|link| link.content}
albums = links[/discography/].map {|link| link[-6..-1]}

print albums.join("\n") + "\n"