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Organize business rules with decision tables.

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tablex lib tablex parser expression bool.ex
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lib/tablex/parser/expression/bool.ex 

defmodule Tablex.Parser.Expression.Bool do

  @moduledoc false



  import NimbleParsec

  import Tablex.Parser.Space



  def bool do

    choice([

      true_exp(),

      false_exp()

    ])

  end



  def true_exp do

    choice([

      string("Y"),

      string("T"),

      string("YES"),

      string("yes"),

      string("true")

    ])

    |> lookahead(eow())

    |> replace(true)

  end



  def false_exp do

    choice([

      string("N"),

      string("F"),

      string("NO"),

      string("no"),

      string("false")

    ])

    |> lookahead(eow())

    |> replace(false)

  end

end