facebookchat_parser.rb

require 'nokogiri'
PERSON = "Andrew Marrone"
def extract_messages_of(name)
  messages = []
  face = Nokogiri::XML(File.open("messages.html"))
  face.css("div.msgbody").each do |n|
    if n.parent.css('span').text == name
      messages << n.text.strip + "."
    end
  end
  messages
end
messages = extract_messages_of(PERSON)
File.open("#{PERSON.gsub(" ", "_")}_messages.txt", 'w') {|f| f.write(messages.join(' ')) }