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require 'bitly'

class BitlyFilter < Nanoc3::Filter
  identifier :bitly
  
  def run(content, params={})
    username, api_key = 'xx', 'xxx'
    bitly = Bitly.new(username, api_key)

    content.gsub(/\]\:\s(.*?)(\\n|\s)/i) do |match|
      bitly.shorten(match).short_url)
    end
  end
end