View Source BitcoinLib.Key.HD.DerivationPath.Parser.Purpose (BitcoinLib v0.4.7)

Determines which address space is being used, either bip44, bip49 or bip84.

This is a hardened value.

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extract(list)

Converts a list of path levels managed up until the purpose value, extracts the purpose and returns the remaining levels

get_atom(unknown)

@spec extract(list()) :: {:ok, nil, []} | {:ok, atom(), list()} | {:error, binary()}

Converts a list of path levels managed up until the purpose value, extracts the purpose and returns the remaining levels

iex> ["84'", "0", "1", "2", "3"]
...> |> BitcoinLib.Key.HD.DerivationPath.Parser.Purpose.extract()
{:ok, :bip84, ["0", "1", "2", "3"]}