google.rb

require 'nokogiri'
require 'cgi'

class Google
  include Donkun::Plugin
  match /(?:google|g)\s+(.+)/

  def execute(m, query)
    m.target.notice search(query)
  end

  def search(query)
    res = get 'http://www.google.co.jp/search', :params => params.merge({:q => query})
    doc = Nokogiri::HTML res

    links = doc.css('h3.r:not(.inl) > a').take(3)
    results = links.map { |link| CGI.unescape_html "#{sanitize link.text} - #{link[:href]}" }

    if stats = doc.at_css('#resultStats')
      stats = stats.children.map { |s| sanitize s.text }.compact
      results << stats.join(' ') unless stats.empty?
    end

    results.join("\n")
  end

  def params
    config[:params] || {}
  end
end