9.5. Resources
There's still relatively little online documentation about ActiveResource. One of my primary guides was a presentation by Chad Fowler at one of Pragmatic Studio's Rails Edge conferences; however, that does not appear to be available online. Try http://ryandaigle.com/articles/2006/06/30/whats-new-in-edge-rails-activeresource-is-here or http://wiki.rubyonrails.org/rails/pages/ActiveResource for more information.
The complete RSS 2.0 specification can be found at http://cyber.law.harvard.edu/rss/rss.html. The current Atom specification (at the time of this writing) is at www.ietf.org/rfc/rfc4287.txt. You can learn more about XPath at www.w3.org/TR/xpath.
The RSS parser example in this chapter was initially based on the snippet presented at http://snippets.dzone.com/posts/show/68 and www.superwick.com/archives/2007/06/09/rss-feed-parsing-in-ruby-on-rails. Also see http://simple-rss.rubyforge.org for another RSS parser object.
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