example nokogiri
require 'nokogiri'
require 'open-uri'
# Fetch and parse HTML document
doc = Nokogiri::HTML(open('http://weban.jp/kanto/jbtyp/'))
doc.css('.selectClear table a').each do |a|
a.attributes['href'].content =~ /mjbtyp(.+)\//
name = a.content
code = $1
print name + "," + code + "\n"
end