Pastable version of Help tighten up this code

<pre class='prettyprint' language='ruby'>#!/usr/bin/env ruby
require 'rubygems'
require 'nokogiri'
require 'open-uri'
require 'uri'

# User configurable
user = &quot;yourtwitterusernamehere&quot;
# get the XML for the user
geturl = &quot;http://api.twitter.com/1/statuses/user_timeline.xml?screen_name=#{user}&quot;

doc = Nokogiri::XML(open(geturl))
#doc = Nokogiri::XML(File.new('twitter.xml'))
# TODO - error checking

# grabbed from http://stackoverflow.com/questions/2034580/i-am-creating-a-twitter-clone-in-ruby-on-rails-how-do-i-code-it-so-that-the
def linkup_mentions_and_hashtags(text)
   text.gsub!(/@([\w]+)(\W)?/, '&lt;a href=&quot;http://twitter.com/\1&quot;&gt;@\1&lt;/a&gt;\2')
   text.gsub!(/#([\w]+)(\W)?/, '&lt;a href=&quot;http://twitter.com/search?q=%23\1&quot;&gt;#\1&lt;/a&gt;\2')
   text
end

# deal with various tweet parsing code to link usernames, links, etc
def parsetweet(t)
   urls = URI.extract(t,%w[ http https ftp ])
   urls.each { |url| t.gsub!(url,&quot;&lt;a href=\&quot;#{url}\&quot;&gt;#{url}&lt;/a&gt;&quot;) }

# auto-link @usernames
   t = linkup_mentions_and_hashtags(t)
   t
end

doc.xpath('//status').each do |status|
   tweetid = status.xpath('.//id').first.content
   datetext = status.xpath('.//created_at').first.content
   tweet = status.xpath('.//text').first.content

url = &quot;http://twitter.com/thinkinginrails/statuses/#{tweetid}&quot;
   date = Date.parse(datetext)
   #datepretty = &quot;#{date.year}/#{date.month}/#{date.day}&quot;
   tweettext = parsetweet(tweet)
   puts &quot;&lt;li&gt;#{tweettext} &lt;em&gt;&lt;a href=\&quot;#{url}\&quot;&gt;#&lt;/a&gt;&lt;/em&gt;&lt;/li&gt;\n&quot;
end</pre>
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Pastable version of Help tighten up this code