yelp neighborhoods to yaml

yelp locations

#!/usr/bin/env ruby
require 'rubygems'
require 'hpricot'
require 'open-uri'
url = "http://www.yelp.com/developers/documentation/neighborhood_list"
doc = open(url) {|f| Hpricot(f.read)}

def nest(li_elem)
  next_sibling = li_elem.next_sibling
  if next_sibling && next_sibling.name == "ul"
    label = li_elem.inner_text
    {label => next_sibling.children_of_type("li").map {|e| nest(e)}}
  else
    li_elem.inner_text
  end
end

ul_root = doc.at("ul.attr_list")
result = ul_root.children_of_type("li").map do |country|
  nest(country)
end

puts result.to_yaml