Склонятор на ruby

gistfile1.rb

#!/usr/bin/env ruby

require 'uri'
require 'open-uri'
require 'nokogiri'

uri       = URI.parse('http://export.yandex.ru/inflect.xml')
params    = { :name => "#{ARGV[0]}" }
uri.query = URI.encode_www_form( params )


doc = Nokogiri::HTML(uri.open.read)
puts doc.xpath("//inflection[contains(@case,#{ARGV[1] || 4})]").first.content