Nokogireader
DSL for parsing xml using Nokogiri::XML::Reader
Installation
Add this line to your application's Gemfile:
gem 'nokogireader'
Example
class Rss2 < Nokogireader::Reader
element :rss, attr: [:version] do
element :channel do
elements :item do
element :title
element :link
end
end
end
end
data = Rss2.new.read(File.open('rss2.xml'))
puts "Version: #{data.rss.attributes[:version]}"
puts "Items: #{data.rss.channel.item.size}"
data.rss.channel.item.each do |item|
puts " > #{item.title.text}"
end
You can use after
callback and dont_store_data
to reduce memory usage.
class Rss2 < Nokogireader::Reader
element :rss, attr: [:version] do
element :channel do
elements :item do
dont_store_data
element :title
element :link
after do |reader, item|
puts "Title: #{item.title.text}"
end
end
end
end
end
data = Rss2.new.read(File.open('rss2.xml'))
puts "Items: #{data.rss.channel.item.size}" # => 0. If specified "dont_store_data", data isn't stored.
Contributing
Bug reports and pull requests are welcome on GitHub at https://github.com/bonono/nokogireader.
License
The gem is available as open source under the terms of the MIT License.