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ex_money

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Money functions for operations on and localization of a money data type with support for ISO 4217 currencies and ISO 24165 digial tokens (crypto currencies).

Retired package: Deprecated
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ex_money lib money sigil.ex
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lib/money/sigil.ex 

defmodule Money.Sigil do

  @doc ~S"""

  Implements the sigil `~M` for Money



  The lower case `~m` variant does not exist as interpolation and excape

  characters are not useful for Money sigils.



  ## Example



      import Money.Sigil



      iex> ~M[1000]usd

      #Money<:USD, 1000>



      iex> ~M[1000.34]usd

      #Money<:USD, 1000.34>



  """



  def sigil_M(amount, [_, _, _] = currency) do

    Money.new(to_decimal(amount), atomize(currency))

  end



  defp to_decimal(string) do

    string

    |> String.replace("_", "")

    |> Decimal.new()

  end



  defp atomize(currency) do

    currency

    |> List.to_string()

    |> validate_currency!

  end



  def validate_currency!(currency) do

    case Money.validate_currency(currency) do

      {:ok, currency} -> currency

      {:error, {_exception, reason}} -> raise Money.UnknownCurrencyError, reason

    end

  end

end