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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).

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ex_money lib money parser parser.ex
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lib/money/parser/parser.ex 

defmodule Money.Parser do

  @moduledoc false



  # parsec:Money.Parser

  import NimbleParsec

  import Money.Combinators



  defparsec(:money_parser, choice([money_with_currency(), accounting_format()]))

  # parsec:Money.Parser



  def change_sign({:amount, amount}) do

    revised_number =

      case amount do

        <<"-", number::binary>> -> number

        number -> "-" <> number

      end



    {:amount, revised_number}

  end



  def change_sign(other), do: other



  def add_minus_sign(arg) do

    "-" <> arg

  end

end