require 'rubygems'
require 'open-uri'
require 'hpricot'

url = 'http://ruby.runpaint.org'

links = Hpricot(open(url).read).search('a').map{|link| link['href'] }
links.reject!{|link| link.include?('#') or link.include?('//') or link.include?('@') }
links -= ['/opensearch', '/toc']
links.unshift('/toc')
links.map!{|link| url+link }

content = links.map{|link| open(link).read }

html = "#{content * "/n/n/n/n"}"

out = 'temp.html'
File.open(out,'w'){|f| f.print html }

`wkhtmltopdf #{out} temp.pdf`