This is a simple plugin for Jekyll that allows you to output Ruby Data Structures as JSON data. It supports both `json` and `json_pretty` filters. Just drop it into your _plugins/ directory and go to town.

json.rb

require "rubygems"
require "json"

module JsonFilter
  def json(input)
    input.to_json
  end

  def json_pretty(input)
    JSON.pretty_generate(input)
  end
  
  Liquid::Template.register_filter self
end