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Liquid implementation in elixir

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liquid lib liquid unless.ex
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lib/liquid/unless.ex 

defmodule Liquid.Unless do

  alias Liquid.IfElse

  alias Liquid.Block

  alias Liquid.Template

  alias Liquid.Condition

  alias Liquid.Tag

  alias Liquid.Render



  def parse(%Block{}=block, %Template{}=t) do

    IfElse.parse(block, t)

  end



  def render(output, %Tag{}, context) do

    { output, context }

  end



  def render(output, %Block{condition: condition, nodelist: nodelist, elselist: elselist}, context) do

    condition = Condition.evaluate(condition, context)

    conditionlist = if condition, do: elselist, else: nodelist

    Render.render(output, conditionlist, context)

  end

end