Removed esbuild and bumped to 0.1.1

README.md

@@ -12,30 +12,32 @@ In just a few letters and numbers, the IBAN captures all of the country, bank, a
 
 ### Successfull case to parse IBAN
 
-Parse string with valid formatted IBAN from supported country
+#### Parse string with valid formatted IBAN from supported country
 
-```elixir 
+```elixir
 {:ok, iban} = "FI2112345600000785" |> IbanEx.Parser.parse()
 IO.inspect(iban)
 IbanEx.Iban.pretty(iban)
 ```
 
-#### Response
+#### Success case responses
 
-    %IbanEx.Iban{
+```elixir
-      country_code: "FI",
+%IbanEx.Iban{
-      check_digits: "21",
+  country_code: "FI",
-      bank_code: "123456",
+  check_digits: "21",
-      branch_code: nil,
+  bank_code: "123456",
-      national_check: "5",
+  branch_code: nil,
-      account_number: "0000078"
+  national_check: "5",
-    }
+  account_number: "0000078"
-    
+}
-    "FI 21 123456 0000078 5"
+
+"FI 21 123456 0000078 5"
+```
 
 ### Errors cases of IBAN parsing
 
-Parse strings with invalid formatted IBANs from unsupported and supported countries
+#### Parse strings with invalid formatted IBANs from unsupported and supported countries
 
 ```elixir
 {:error, unsupported_country_code} = "AZ21NABZ00000000137010001944" |> IbanEx.Parser.parse()
@@ -48,22 +50,22 @@ IO.inspect(IbanEx.Error.message(invalid_length_code), label: invalid_length_code
 IO.inspect(IbanEx.Error.message(invalid_checksum), label: invalid_checksum)
 ```
 
-#### Response
+#### Error cases response
-
-    unsupported_country_code: "Unsupported country code"
-    invalid_length: "IBAN violates the required length"
-    invalid_checksum: "IBAN's checksum is invalid"
 
+```elixir
+unsupported_country_code: "Unsupported country code"
+invalid_length: "IBAN violates the required length"
+invalid_checksum: "IBAN's checksum is invalid"
+```
 
 ## Installation
 
-If [available in Hex](https://hex.pm/docs/publish), the package can be installed
+The package can be installed by adding `iban_ex` to your list of dependencies in `mix.exs`:
-by adding `iban_ex` to your list of dependencies in `mix.exs`:
 
 ```elixir
 def deps do
   [
-    {:iban_ex, "~> 0.1.0"}
+    {:iban_ex, "~> 0.1.1"}
   ]
 end
 ```
@@ -71,4 +73,3 @@ end
 Documentation can be generated with [ExDoc](https://github.com/elixir-lang/ex_doc)
 and published on [HexDocs](https://hexdocs.pm). Once published, the docs can
 be found at <https://hexdocs.pm/iban_ex>.
-

lib/iban_ex/commons/commons.ex

@@ -1,4 +1,6 @@
 defmodule IbanEx.Commons do
+  @moduledoc false
+
   @spec normalize(binary()) :: binary()
   def normalize(string) do
     string

lib/iban_ex/country.ex

@@ -1,4 +1,6 @@
 defmodule IbanEx.Country do
+  @moduledoc false
+
   import IbanEx.Commons, only: [normalize: 1]
 
   @type country_code() :: <<_::16>> | atom()

lib/iban_ex/country/at.ex

@@ -3,32 +3,8 @@ defmodule IbanEx.Country.AT do
   Austria IBAN parsing rules
   """
 
-  alias IbanEx.Iban
-
-  @behaviour IbanEx.Country.Template
-
   @size 20
-
   @rule ~r/^(?<bank_code>[0-9]{5})(?<account_number>[0-9]{11})$/i
 
-  @spec size() :: 20
+  use IbanEx.Country.Template
-  def size(), do: @size
-
-  @spec rule() :: Regex.t()
-  def rule(), do: @rule
-
-  @spec to_s(Iban.t()) :: binary()
-  @spec to_s(Iban.t(), binary()) :: binary()
-  def to_s(
-        %Iban{
-          country_code: country_code,
-          check_digits: check_digits,
-          bank_code: bank_code,
-          account_number: account_number
-        } = _iban,
-        joiner \\ " "
-      ) do
-    [country_code, check_digits, bank_code, account_number]
-    |> Enum.join(joiner)
-  end
 end

lib/iban_ex/country/be.ex

@@ -3,23 +3,15 @@ defmodule IbanEx.Country.BE do
   Belgium IBAN parsing rules
   """
 
-  alias IbanEx.Iban
-
-  @behaviour IbanEx.Country.Template
-
   @size 16
-
   @rule ~r/^(?<bank_code>[0-9]{3})(?<account_number>[0-9]{7})(?<national_check>[0-9]{2})$/i
 
-  @spec size() :: 16
+  use IbanEx.Country.Template
-  def size(), do: @size
 
-  @spec rule() :: Regex.t()
+  @impl IbanEx.Country.Template
-  def rule(), do: @rule
+  @spec to_string(Iban.t()) :: binary()
-
+  @spec to_string(Iban.t(), binary()) :: binary()
-  @spec to_s(Iban.t()) :: binary()
+  def to_string(
-  @spec to_s(Iban.t(), binary()) :: binary()
-  def to_s(
         %Iban{
           country_code: country_code,
           check_digits: check_digits,

lib/iban_ex/country/bg.ex

@@ -3,23 +3,17 @@ defmodule IbanEx.Country.BG do
   Bulgaria IBAN parsing rules
   """
 
-  alias IbanEx.Iban
-
-  @behaviour IbanEx.Country.Template
-
   @size 22
-
   @rule ~r/^(?<bank_code>[A-Z]{4})(?<branch_code>[0-9]{4})(?<account_number>[0-9]{2}[0-9A-Z]{8})$/i
 
+  use IbanEx.Country.Template
+
   @spec size() :: 22
-  def size(), do: @size
 
-  @spec rule() :: Regex.t()
+  @impl IbanEx.Country.Template
-  def rule(), do: @rule
+  @spec to_string(Iban.t()) :: binary()
-
+  @spec to_string(Iban.t(), binary()) :: binary()
-  @spec to_s(Iban.t()) :: binary()
+  def to_string(
-  @spec to_s(Iban.t(), binary()) :: binary()
-  def to_s(
         %Iban{
           country_code: country_code,
           check_digits: check_digits,

lib/iban_ex/country/ch.ex

@@ -3,32 +3,8 @@ defmodule IbanEx.Country.CH do
   Switzerland IBAN parsing rules
   """
 
-  alias IbanEx.Iban
-
-  @behaviour IbanEx.Country.Template
-
   @size 21
-
   @rule ~r/^(?<bank_code>[0-9]{5})(?<account_number>[0-9A-Z]{12})$/i
 
-  @spec size() :: 21
+  use IbanEx.Country.Template
-  def size(), do: @size
-
-  @spec rule() :: Regex.t()
-  def rule(), do: @rule
-
-  @spec to_s(Iban.t()) :: binary()
-  @spec to_s(Iban.t(), binary()) :: binary()
-  def to_s(
-        %Iban{
-          country_code: country_code,
-          check_digits: check_digits,
-          bank_code: bank_code,
-          account_number: account_number
-        } = _iban,
-        joiner \\ " "
-      ) do
-    [country_code, check_digits, bank_code, account_number]
-    |> Enum.join(joiner)
-  end
 end

lib/iban_ex/country/cy.ex

@@ -3,23 +3,15 @@ defmodule IbanEx.Country.CY do
   Cyprus IBAN parsing rules
   """
 
-  alias IbanEx.Iban
-
-  @behaviour IbanEx.Country.Template
-
   @size 28
-
   @rule ~r/^(?<bank_code>[0-9]{3})(?<branch_code>[0-9]{5})(?<account_number>[0-9A-Z]{16})$/i
 
-  @spec size() :: 28
+  use IbanEx.Country.Template
-  def size(), do: @size
 
-  @spec rule() :: Regex.t()
+  @impl IbanEx.Country.Template
-  def rule(), do: @rule
+  @spec to_string(Iban.t()) :: binary()
-
+  @spec to_string(Iban.t(), binary()) :: binary()
-  @spec to_s(Iban.t()) :: binary()
+  def to_string(
-  @spec to_s(Iban.t(), binary()) :: binary()
-  def to_s(
         %Iban{
           country_code: country_code,
           check_digits: check_digits,

lib/iban_ex/country/cz.ex

@@ -3,34 +3,8 @@ defmodule IbanEx.Country.CZ do
   Czech Republic IBAN parsing rules
   """
 
-  alias IbanEx.Iban
-
-  @behaviour IbanEx.Country.Template
-
   @size 24
-
   @rule ~r/^(?<bank_code>[0-9]{4})(?<account_number>[0-9]{16})$/i
 
-  @spec size() :: 24
+  use IbanEx.Country.Template
-  def size(), do: @size
-
-  @spec rule() :: Regex.t()
-  def rule(), do: @rule
-
-  @spec to_s(Iban.t()) :: binary()
-  @spec to_s(Iban.t(), binary()) :: binary()
-  def to_s(
-        %Iban{
-          country_code: country_code,
-          check_digits: check_digits,
-          bank_code: bank_code,
-          branch_code: _branch_code,
-          national_check: _national_check,
-          account_number: account_number
-        } = _iban,
-        joiner \\ " "
-      ) do
-    [country_code, check_digits, bank_code, account_number]
-    |> Enum.join(joiner)
-  end
 end

lib/iban_ex/country/de.ex

@@ -3,34 +3,8 @@ defmodule IbanEx.Country.DE do
   Germany IBAN parsing rules
   """
 
-  alias IbanEx.Iban
-
-  @behaviour IbanEx.Country.Template
-
   @size 22
-
   @rule ~r/^(?<bank_code>[0-9]{8})(?<account_number>[0-9]{10})$/i
 
-  @spec size() :: 22
+  use IbanEx.Country.Template
-  def size(), do: @size
-
-  @spec rule() :: Regex.t()
-  def rule(), do: @rule
-
-  @spec to_s(Iban.t()) :: binary()
-  @spec to_s(Iban.t(), binary()) :: binary()
-  def to_s(
-        %Iban{
-          country_code: country_code,
-          check_digits: check_digits,
-          bank_code: bank_code,
-          branch_code: _branch_code,
-          national_check: _national_check,
-          account_number: account_number
-        } = _iban,
-        joiner \\ " "
-      ) do
-    [country_code, check_digits, bank_code, account_number]
-    |> Enum.join(joiner)
-  end
 end

lib/iban_ex/country/dk.ex

@@ -2,35 +2,8 @@ defmodule IbanEx.Country.DK do
   @moduledoc """
   Denmark IBAN parsing rules
   """
-
-  alias IbanEx.Iban
-
-  @behaviour IbanEx.Country.Template
-
   @size 18
-
   @rule ~r/^(?<bank_code>[0-9]{4})(?<account_number>[0-9]{10})$/i
 
-  @spec size() :: 18
+  use IbanEx.Country.Template
-  def size(), do: @size
-
-  @spec rule() :: Regex.t()
-  def rule(), do: @rule
-
-  @spec to_s(Iban.t()) :: binary()
-  @spec to_s(Iban.t(), binary()) :: binary()
-  def to_s(
-        %Iban{
-          country_code: country_code,
-          check_digits: check_digits,
-          bank_code: bank_code,
-          branch_code: _branch_code,
-          national_check: _national_check,
-          account_number: account_number
-        } = _iban,
-        joiner \\ " "
-      ) do
-    [country_code, check_digits, bank_code, account_number]
-    |> Enum.join(joiner)
-  end
 end

lib/iban_ex/country/ee.ex

@@ -3,23 +3,15 @@ defmodule IbanEx.Country.EE do
   Estonian IBAN parsing rules
   """
 
-  alias IbanEx.Iban
-
-  @behaviour IbanEx.Country.Template
-
   @size 20
-
   @rule ~r/^(?<bank_code>[0-9]{2})(?<branch_code>[0-9]{2})(?<account_number>[0-9]{11})(?<national_check>[0-9]{1})$/i
 
-  @spec size() :: 20
+  use IbanEx.Country.Template
-  def size(), do: @size
 
-  @spec rule() :: Regex.t()
+  @impl IbanEx.Country.Template
-  def rule(), do: @rule
+  @spec to_string(Iban.t()) :: binary()
-
+  @spec to_string(Iban.t(), binary()) :: binary()
-  @spec to_s(Iban.t()) :: binary()
+  def to_string(
-  @spec to_s(Iban.t(), binary()) :: binary()
-  def to_s(
         %Iban{
           country_code: country_code,
           check_digits: check_digits,

lib/iban_ex/country/es.ex

@@ -3,23 +3,15 @@ defmodule IbanEx.Country.ES do
   Spain IBAN parsing rules
   """
 
-  alias IbanEx.Iban
-
-  @behaviour IbanEx.Country.Template
-
   @size 24
-
   @rule ~r/^(?<bank_code>[0-9]{4})(?<branch_code>[0-9]{4})(?<national_check>[0-9]{2})(?<account_number>[0-9]{10})$/i
 
-  @spec size() :: 24
+  use IbanEx.Country.Template
-  def size(), do: @size
 
-  @spec rule() :: Regex.t()
+  @impl IbanEx.Country.Template
-  def rule(), do: @rule
+  @spec to_string(Iban.t()) :: binary()
-
+  @spec to_string(Iban.t(), binary()) :: binary()
-  @spec to_s(Iban.t()) :: binary()
+  def to_string(
-  @spec to_s(Iban.t(), binary()) :: binary()
-  def to_s(
         %Iban{
           country_code: country_code,
           check_digits: check_digits,

lib/iban_ex/country/fi.ex

@@ -3,23 +3,15 @@ defmodule IbanEx.Country.FI do
   Finland IBAN parsing rules
   """
 
-  alias IbanEx.Iban
-
-  @behaviour IbanEx.Country.Template
-
   @size 18
-
   @rule ~r/^(?<bank_code>[0-9]{6})(?<account_number>[0-9]{7})(?<national_check>[0-9]{1})$/i
 
-  @spec size() :: 18
+  use IbanEx.Country.Template
-  def size(), do: @size
 
-  @spec rule() :: Regex.t()
+  @impl IbanEx.Country.Template
-  def rule(), do: @rule
+  @spec to_string(Iban.t()) :: binary()
-
+  @spec to_string(Iban.t(), binary()) :: binary()
-  @spec to_s(Iban.t()) :: binary()
+  def to_string(
-  @spec to_s(Iban.t(), binary()) :: binary()
-  def to_s(
         %Iban{
           country_code: country_code,
           check_digits: check_digits,

lib/iban_ex/country/fr.ex

@@ -3,23 +3,15 @@ defmodule IbanEx.Country.FR do
   France IBAN parsing rules
   """
 
-  alias IbanEx.Iban
-
-  @behaviour IbanEx.Country.Template
-
   @size 27
-
   @rule ~r/^(?<bank_code>[0-9]{5})(?<branch_code>[0-9]{5})(?<account_number>[0-9A-Z]{11})(?<national_check>[0-9]{2})$/i
 
-  @spec size() :: 27
+  use IbanEx.Country.Template
-  def size(), do: @size
 
-  @spec rule() :: Regex.t()
+  @impl IbanEx.Country.Template
-  def rule(), do: @rule
+  @spec to_string(Iban.t()) :: binary()
-
+  @spec to_string(Iban.t(), binary()) :: binary()
-  @spec to_s(Iban.t()) :: binary()
+  def to_string(
-  @spec to_s(Iban.t(), binary()) :: binary()
-  def to_s(
         %Iban{
           country_code: country_code,
           check_digits: check_digits,

lib/iban_ex/country/gb.ex

@@ -3,23 +3,15 @@ defmodule IbanEx.Country.GB do
   United Kingdom IBAN parsing rules
   """
 
-  alias IbanEx.Iban
-
-  @behaviour IbanEx.Country.Template
-
   @size 22
-
   @rule ~r/^(?<bank_code>[A-Z]{4})(?<branch_code>[0-9]{6})(?<account_number>[0-9]{8})$/i
 
-  @spec size() :: 22
+  use IbanEx.Country.Template
-  def size(), do: @size
 
-  @spec rule() :: Regex.t()
+  @impl IbanEx.Country.Template
-  def rule(), do: @rule
+  @spec to_string(Iban.t()) :: binary()
-
+  @spec to_string(Iban.t(), binary()) :: binary()
-  @spec to_s(Iban.t()) :: binary()
+  def to_string(
-  @spec to_s(Iban.t(), binary()) :: binary()
-  def to_s(
         %Iban{
           country_code: country_code,
           check_digits: check_digits,

lib/iban_ex/country/hr.ex

@@ -3,34 +3,8 @@ defmodule IbanEx.Country.HR do
   Croatia IBAN parsing rules
   """
 
-  alias IbanEx.Iban
-
-  @behaviour IbanEx.Country.Template
-
   @size 21
-
   @rule ~r/^(?<bank_code>[0-9]{7})(?<account_number>[0-9]{10})$/i
 
-  @spec size() :: 21
+  use IbanEx.Country.Template
-  def size(), do: @size
-
-  @spec rule() :: Regex.t()
-  def rule(), do: @rule
-
-  @spec to_s(Iban.t()) :: binary()
-  @spec to_s(Iban.t(), binary()) :: binary()
-  def to_s(
-        %Iban{
-          country_code: country_code,
-          check_digits: check_digits,
-          bank_code: bank_code,
-          branch_code: _branch_code,
-          national_check: _national_check,
-          account_number: account_number
-        } = _iban,
-        joiner \\ " "
-      ) do
-    [country_code, check_digits, bank_code, account_number]
-    |> Enum.join(joiner)
-  end
 end

lib/iban_ex/country/lt.ex

@@ -3,34 +3,8 @@ defmodule IbanEx.Country.LT do
   Lithuanian IBAN parsing rules
   """
 
-  alias IbanEx.Iban
-
-  @behaviour IbanEx.Country.Template
-
   @size 20
-
   @rule ~r/^(?<bank_code>[0-9]{5})(?<account_number>[0-9]{11})$/i
 
-  @spec size() :: 20
+  use IbanEx.Country.Template
-  def size(), do: @size
-
-  @spec rule() :: Regex.t()
-  def rule(), do: @rule
-
-  @spec to_s(Iban.t()) :: binary()
-  @spec to_s(Iban.t(), binary()) :: binary()
-  def to_s(
-        %Iban{
-          country_code: country_code,
-          check_digits: check_digits,
-          bank_code: bank_code,
-          branch_code: _branch_code,
-          national_check: _national_check,
-          account_number: account_number
-        } = _iban,
-        joiner \\ " "
-      ) do
-    [country_code, check_digits, bank_code, account_number]
-    |> Enum.join(joiner)
-  end
 end

lib/iban_ex/country/lu.ex

@@ -3,34 +3,8 @@ defmodule IbanEx.Country.LU do
   Luxembourg IBAN parsing rules
   """
 
-  alias IbanEx.Iban
-
-  @behaviour IbanEx.Country.Template
-
   @size 20
-
   @rule ~r/^(?<bank_code>[0-9]{3})(?<account_number>[0-9A-Z]{13})$/i
 
-  @spec size() :: 20
+  use IbanEx.Country.Template
-  def size(), do: @size
-
-  @spec rule() :: Regex.t()
-  def rule(), do: @rule
-
-  @spec to_s(Iban.t()) :: binary()
-  @spec to_s(Iban.t(), binary()) :: binary()
-  def to_s(
-        %Iban{
-          country_code: country_code,
-          check_digits: check_digits,
-          bank_code: bank_code,
-          branch_code: _branch_code,
-          national_check: _national_check,
-          account_number: account_number
-        } = _iban,
-        joiner \\ " "
-      ) do
-    [country_code, check_digits, bank_code, account_number]
-    |> Enum.join(joiner)
-  end
 end

lib/iban_ex/country/lv.ex

@@ -3,34 +3,8 @@ defmodule IbanEx.Country.LV do
   Latvian IBAN parsing rules
   """
 
-  alias IbanEx.Iban
-
-  @behaviour IbanEx.Country.Template
-
   @size 21
-
   @rule ~r/^(?<bank_code>[A-Z]{4})(?<account_number>[0-9A-Z]{13})$/i
 
-  @spec size() :: 21
+  use IbanEx.Country.Template
-  def size(), do: @size
-
-  @spec rule() :: Regex.t()
-  def rule(), do: @rule
-
-  @spec to_s(Iban.t()) :: binary()
-  @spec to_s(Iban.t(), binary()) :: binary()
-  def to_s(
-        %Iban{
-          country_code: country_code,
-          check_digits: check_digits,
-          bank_code: bank_code,
-          branch_code: _branch_code,
-          national_check: _national_check,
-          account_number: account_number
-        } = _iban,
-        joiner \\ " "
-      ) do
-    [country_code, check_digits, bank_code, account_number]
-    |> Enum.join(joiner)
-  end
 end

lib/iban_ex/country/mt.ex

@@ -3,23 +3,15 @@ defmodule IbanEx.Country.MT do
   Malta IBAN parsing rules
   """
 
-  alias IbanEx.Iban
-
-  @behaviour IbanEx.Country.Template
-
   @size 31
-
   @rule ~r/^(?<bank_code>[A-Z]{4})(?<branch_code>[0-9]{5})(?<account_number>[0-9A-Z]{18})$/i
 
-  @spec size() :: 31
+  use IbanEx.Country.Template
-  def size(), do: @size
 
-  @spec rule() :: Regex.t()
+  @impl IbanEx.Country.Template
-  def rule(), do: @rule
+  @spec to_string(Iban.t()) :: binary()
-
+  @spec to_string(Iban.t(), binary()) :: binary()
-  @spec to_s(Iban.t()) :: binary()
+  def to_string(
-  @spec to_s(Iban.t(), binary()) :: binary()
-  def to_s(
         %Iban{
           country_code: country_code,
           check_digits: check_digits,

lib/iban_ex/country/nl.ex

@@ -3,34 +3,8 @@ defmodule IbanEx.Country.NL do
   Netherlands IBAN parsing rules
   """
 
-  alias IbanEx.Iban
-
-  @behaviour IbanEx.Country.Template
-
   @size 18
-
   @rule ~r/^(?<bank_code>[A-Z]{4})(?<account_number>[0-9]{10})$/i
 
-  @spec size() :: 18
+  use IbanEx.Country.Template
-  def size(), do: @size
-
-  @spec rule() :: Regex.t()
-  def rule(), do: @rule
-
-  @spec to_s(Iban.t()) :: binary()
-  @spec to_s(Iban.t(), binary()) :: binary()
-  def to_s(
-        %Iban{
-          country_code: country_code,
-          check_digits: check_digits,
-          bank_code: bank_code,
-          branch_code: _branch_code,
-          national_check: _national_check,
-          account_number: account_number
-        } = _iban,
-        joiner \\ " "
-      ) do
-    [country_code, check_digits, bank_code, account_number]
-    |> Enum.join(joiner)
-  end
 end

lib/iban_ex/country/pl.ex

@@ -3,23 +3,15 @@ defmodule IbanEx.Country.PL do
   Poland IBAN parsing rules
   """
 
-  alias IbanEx.Iban
-
-  @behaviour IbanEx.Country.Template
-
   @size 28
-
   @rule ~r/^(?<bank_code>[0-9]{3})(?<branch_code>[0-9]{4})(?<national_check>[0-9]{1})(?<account_number>[0-9]{16})$/i
 
-  @spec size() :: 28
+  use IbanEx.Country.Template
-  def size(), do: @size
 
-  @spec rule() :: Regex.t()
+  @impl IbanEx.Country.Template
-  def rule(), do: @rule
+  @spec to_string(Iban.t()) :: binary()
-
+  @spec to_string(Iban.t(), binary()) :: binary()
-  @spec to_s(Iban.t()) :: binary()
+  def to_string(
-  @spec to_s(Iban.t(), binary()) :: binary()
-  def to_s(
         %Iban{
           country_code: country_code,
           check_digits: check_digits,

lib/iban_ex/country/pt.ex

@@ -3,23 +3,15 @@ defmodule IbanEx.Country.PT do
   Portugal IBAN parsing rules
   """
 
-  alias IbanEx.Iban
-
-  @behaviour IbanEx.Country.Template
-
   @size 25
-
   @rule ~r/^(?<bank_code>[0-9]{4})(?<branch_code>[0-9]{4})(?<account_number>[0-9]{11})(?<national_check>[0-9]{2})$/i
 
-  @spec size() :: 25
+  use IbanEx.Country.Template
-  def size(), do: @size
 
-  @spec rule() :: Regex.t()
+  @impl IbanEx.Country.Template
-  def rule(), do: @rule
+  @spec to_string(Iban.t()) :: binary()
-
+  @spec to_string(Iban.t(), binary()) :: binary()
-  @spec to_s(Iban.t()) :: binary()
+  def to_string(
-  @spec to_s(Iban.t(), binary()) :: binary()
-  def to_s(
         %Iban{
           country_code: country_code,
           check_digits: check_digits,

lib/iban_ex/country/template.ex

@@ -1,4 +1,6 @@
 defmodule IbanEx.Country.Template do
+  @moduledoc false
+
   alias IbanEx.Iban
   @type size() :: non_neg_integer()
   @type rule() :: Regex.t()
@@ -7,6 +9,41 @@ defmodule IbanEx.Country.Template do
 
   @callback size() :: size()
   @callback rule() :: rule()
-  @callback to_s(Iban.t(), joiner()) :: String.t()
+  @callback to_string(Iban.t(), joiner()) :: String.t()
-  @callback to_s(Iban.t()) :: String.t()
+  @callback to_string(Iban.t()) :: String.t()
+
+  defmacro __using__(_opts) do
+    quote do
+      alias IbanEx.Iban
+      @behaviour IbanEx.Country.Template
+
+      @impl IbanEx.Country.Template
+      @spec to_string(Iban.t()) :: binary()
+      @spec to_string(Iban.t(), binary()) :: binary()
+      def to_string(
+            %Iban{
+              country_code: country_code,
+              check_digits: check_digits,
+              bank_code: bank_code,
+              branch_code: _branch_code,
+              national_check: _national_check,
+              account_number: account_number
+            } = _iban,
+            joiner \\ " "
+          ) do
+        [country_code, check_digits, bank_code, account_number]
+        |> Enum.join(joiner)
+      end
+
+      @impl IbanEx.Country.Template
+      @spec size() :: Integer.t()
+      def size(), do: @size
+
+      @impl IbanEx.Country.Template
+      @spec rule() :: Regex.t()
+      def rule(), do: @rule
+
+      defoverridable to_string: 1, to_string: 2, size: 0, rule: 0
+    end
+  end
 end

lib/iban_ex/country/ua.ex

@@ -3,34 +3,8 @@ defmodule IbanEx.Country.UA do
   Ukrainian IBAN parsing rules
   """
 
-  alias IbanEx.Iban
-
-  @behaviour IbanEx.Country.Template
-
   @size 29
-
   @rule ~r/^(?<bank_code>[0-9]{6})(?<account_number>[0-9A-Z]{19})$/i
 
-  @spec size() :: 29
+  use IbanEx.Country.Template
-  def size(), do: @size
-
-  @spec rule() :: Regex.t()
-  def rule(), do: @rule
-
-  @spec to_s(Iban.t()) :: binary()
-  @spec to_s(Iban.t(), binary()) :: binary()
-  def to_s(
-        %Iban{
-          country_code: country_code,
-          check_digits: check_digits,
-          bank_code: bank_code,
-          branch_code: _branch_code,
-          national_check: _national_check,
-          account_number: account_number
-        } = _iban,
-        joiner \\ " "
-      ) do
-    [country_code, check_digits, bank_code, account_number]
-    |> Enum.join(joiner)
-  end
 end

lib/iban_ex/deserialize.ex

@@ -7,8 +7,8 @@ end
 defimpl IbanEx.Deserialize, for: [BitString, String] do
   alias IbanEx.{Parser, Error}
   @type iban_or_error() :: IbanEx.Iban.t() | {:error, atom()}
+  @spec to_iban(binary()) :: iban_or_error()
   @spec to_iban(String.t()) :: iban_or_error()
-  @spec to_iban(binary()) :: IbanEx.Iban.t()
   def to_iban(string) do
     case Parser.parse(string) do
       {:ok, iban} -> iban

lib/iban_ex/error.ex

@@ -1,7 +1,5 @@
 defmodule IbanEx.Error do
-  @moduledoc """
+  @moduledoc false
-
-  """
 
   @type error() ::
           :unsupported_country_code

lib/iban_ex/formatter.ex

@@ -1,4 +1,6 @@
 defmodule IbanEx.Formatter do
+  @moduledoc false
+
   alias IbanEx.Country
   import IbanEx.Commons, only: [normalize: 1]
 
@@ -28,7 +30,7 @@ defmodule IbanEx.Formatter do
 
   def format(iban, :pretty) do
     country_module = Country.country_module(iban.country_code)
-    country_module.to_s(iban)
+    country_module.to_string(iban)
   end
 
   def format(iban, :splitted) do

lib/iban_ex/iban.ex

@@ -1,4 +1,6 @@
 defmodule IbanEx.Iban do
+  @moduledoc false
+
   alias IbanEx.Formatter
   alias IbanEx.{Serialize}
 

lib/iban_ex/parser.ex

@@ -1,4 +1,6 @@
 defmodule IbanEx.Parser do
+  @moduledoc false
+
   alias IbanEx.{Country, Iban, Validator}
   import IbanEx.Commons, only: [normalize_and_slice: 2]
 
@@ -9,20 +11,27 @@ defmodule IbanEx.Parser do
 
   @spec parse({:ok, String.t()} | String.t()) :: iban_or_error()
   def parse({:ok, iban_string}), do: parse(iban_string)
+
   def parse(iban_string) do
-    with {:ok, valid_iban} <- Validator.validate(iban_string) do
+    case Validator.validate(iban_string) do
-      iban_map = %{
+      {:ok, valid_iban} ->
-        country_code: country_code(valid_iban),
+        iban_map = %{
-        check_digits: check_digits(valid_iban),
+          country_code: country_code(valid_iban),
-      }
+          check_digits: check_digits(valid_iban)
+        }
 
-      regex = Country.country_module(iban_map.country_code).rule()
+        regex = Country.country_module(iban_map.country_code).rule()
-      bban = bban(iban_string)
+        bban = bban(iban_string)
-      bban_map = for {key, val} <- Regex.named_captures(regex, bban), into: %{}, do: {String.to_atom(key), val}
 
-      {:ok, struct(Iban, Map.merge(iban_map, bban_map))}
+        bban_map =
-    else
+          for {key, val} <- Regex.named_captures(regex, bban),
-      {:error, error_type} -> {:error, error_type}
+              into: %{},
+              do: {String.to_atom(key), val}
+
+        {:ok, struct(Iban, Map.merge(iban_map, bban_map))}
+
+      {:error, error_type} ->
+        {:error, error_type}
     end
   end
 

lib/iban_ex/serialize.ex

@@ -1,4 +1,6 @@
 defmodule IbanEx.Serialize do
+  @moduledoc false
+
   alias IbanEx.{Iban, Formatter}
 
   @spec to_string(Iban.t()) :: String.t()

lib/iban_ex/validator/validator.ex

@@ -1,9 +1,11 @@
 defmodule IbanEx.Validator do
+  @moduledoc false
+
   alias IbanEx.{Country, Parser}
   alias IbanEx.Validator.Replacements
   import IbanEx.Commons, only: [normalize: 1]
 
-  @spec validate(String.t()) :: {:ok, String.t()} | {:error}
+  @spec validate(String.t()) :: {:ok, String.t()} | {:error, Atom.t()}
   def validate(iban) do
     cond do
       iban_violates_format?(iban) ->

mix.exs

@@ -2,7 +2,7 @@ defmodule IbanEx.MixProject do
   use Mix.Project
 
   @source_url "https://g.tulz.dev/opensource/iban-ex"
-  @version "0.1.0"
+  @version "0.1.1"
 
   def project do
     [
@@ -68,7 +68,6 @@ defmodule IbanEx.MixProject do
       {:ex_doc, ">= 0.0.0", only: ~w(dev test)a, runtime: false},
       {:sobelow, ">= 0.0.0", only: ~w(dev test)a, runtime: false},
       {:mix_audit, ">= 0.0.0", only: ~w(dev test)a, runtime: false},
-      {:esbuild, "~> 0.7.0", runtime: Mix.env() == :dev},
       {:observer_cli, "~> 1.7.4", only: :dev, runtime: false},
       {:elixir_sense, github: "elixir-lsp/elixir_sense", only: ~w(dev)a}