如何用Ruby運行ScrAPI？

Question

我試圖用rails與此代碼運行scrapi：

require 'rubygems' 
require 'scrapi' 
require 'tidy' 

scraper = Scraper.define do 
    process "title", :page_name => :text 
    result :page_name 
end 

uri = URI.parse("http://railscasts.com/episodes/173-screen-scraping-with-scrapi") 
p scraper.scrape(uri) 

，但我得到了以下錯誤：

DL is deprecated, please use Fiddle 
/usr/local/rvm/gems/ruby-2.0.0-p353/gems/tidy-1.1.2/lib/tidy/tidybuf.rb:5:in `<class:Tidybuf>': uninitialized constant DL::Importable (NameError) 
     from /usr/local/rvm/gems/ruby-2.0.0-p353/gems/tidy-1.1.2/lib/tidy/tidybuf.rb:3:in `<top (required)>' 
     from /usr/local/rvm/rubies/ruby-2.0.0-p353/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require' 
     from /usr/local/rvm/rubies/ruby-2.0.0-p353/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require' 
     from /usr/local/rvm/gems/ruby-2.0.0-p353/gems/tidy-1.1.2/lib/tidy.rb:25:in `<module:Tidy>' 
     from /usr/local/rvm/gems/ruby-2.0.0-p353/gems/tidy-1.1.2/lib/tidy.rb:21:in `<top (required)>' 
     from /usr/local/rvm/rubies/ruby-2.0.0-p353/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:135:in `require' 
     from /usr/local/rvm/rubies/ruby-2.0.0-p353/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:135:in `rescue in require' 
     from /usr/local/rvm/rubies/ruby-2.0.0-p353/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:144:in `require' 
     from scrapitest.rb:3:in `<main>' 

有任何人有一個想法，這是爲什麼和我能做什麼來修理它？

謝謝。

Answer 1

改爲嘗試http://github.com/libc/tidy_ffi。看來tidy寶石已經不復存在了。