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makeup lib makeup lexer.ex
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lib/makeup/lexer.ex 

defmodule Makeup.Lexer do

  

  def merge([{tag, meta, value1}, {tag, meta, value2} | rest]),

    do: merge [{tag, meta, value1 <> value2} | rest]

  def merge([token | rest]),

    do: [token | merge(rest)]

  def merge([]),

    do: []



  def unlex(tokens) do

    tokens

    |> Enum.map(fn {_, _, value} -> value end)

    |> Enum.join("")

  end



end