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/gist:426022

Created June 4, 2010 22:25
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gistfile1.builder
require 'nokogiri'
doc = Nokogiri::XML(open("news.rss"))
content_tag = Nokogiri::XML::Node.new "content", doc
content_tag.content = doc.create_cdata("<<<<")
doc.at("//item/description").add_next_sibling(content_tag)
doc.to_xml # CDATA gets converted to entities
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