Add script to fetch and process IBAN registry data

Include a new Python script that retrieves IBAN registry data from SWIFT and processes it into a structured JSON format,
along with a PDF document for reference.

.gitattributes

@@ -0,0 +1,3 @@
+# Cicada: Enable git function tracking for Elixir
+*.ex diff=elixir
+*.exs diff=elixir

.gitignore

@@ -1,3 +1,19 @@
+# Development artefacts
+.DS_Store
+.vscode
+.drone.status
+
+# Elixir LS and Tools
+.elixir_ls
+.elixir-tools
+.lexical
+.expert
+
+# AI tools
+.claude
+.codex
+.mcp.json
+
 # The directory Mix will write compiled artifacts to.
 /_build/
 

Agents.md

@@ -0,0 +1,232 @@
+This is a web application written using the Phoenix web framework.
+
+## Project guidelines
+
+- Use `mix check` alias when you are done with all changes and fix any pending issues
+- Use the already included and available `:req` (`Req`) library for HTTP requests, **avoid** `:httpoison`, `:tesla`, and `:httpc`. Req is included by default and is the preferred HTTP client for Banker
+- Use the already included and available Elixir native JSON module to encode and decode JSON, **avoid** `:jason`, `:poison`, and other. JSON is a part of Elixir standard library and is the preferred JSON parser and generator for Banker
+
+<!-- elixir-toolkit-commands--execution-start -->
+
+## Command Execution
+
+**🔴 CRITICAL: ALWAYS prefix mix, iex commands with environment variables:**
+
+**For Development:**
+```bash
+env $(cat .dev.env | xargs) mix <COMMAND>
+env $(cat .dev.env | xargs) iex -S mix
+```
+
+**For Testing:**
+```bash
+env $(cat .test.env | xargs) mix test
+env $(cat .test.env | xargs) iex -S mix
+```
+
+**Examples:**
+```bash
+# Development
+env $(cat .dev.env | xargs) mix test
+env $(cat .dev.env | xargs) mix compile
+env $(cat .dev.env | xargs) mix phx.server
+
+# Testing
+env $(cat .test.env | xargs) mix test
+env $(cat .test.env | xargs) mix test test/banker/assistants/invoice_data_assistant_test.exs
+env $(cat .test.env | xargs) iex -S mix
+```
+
+**NEVER run mix commands without the appropriate ENV file prefix** - will fail with missing ENV variable errors.
+- Use `.dev.env` for development commands
+- Use `.test.env` for test commands
+
+
+<!-- elixir-toolkit-commands--execution-end -->
+
+<!-- tool-usage-start -->
+## Tool Usage Guidelines
+
+<!-- tool-usage:code-start -->
+### Code base analysys and semantic code search
+
+Register project to make Tree Sitter tool available for analyzing the Banker codebase and get next posibilities: 
+
+- **Search codebase**: Find files, functions, or patterns
+- **Understand architecture**: Explore modules, domains, resources
+- **Code navigation**: Jump to definitions, find usages
+- **Quality analysis**: Detect complexity, duplication, dependencies
+- **Strategic exploration**: Understand domain structure and relationships
+
+**Always use tree_sitter_banker tool** for: 
+
+  1. **Code Navigation**: Extract functions, classes, modules. Find where symbols are used. Search with regex patterns. Read file contents efficiently. Get abstract syntax trees
+  2. **Analysis Tools**: Measure cyclomatic complexity. Find imports and dependencies. Detect code duplication. Execute tree-sitter queries
+  3. **Project Understanding**: Get file lists by pattern or extension. Analyze project structure. Get file metadata and line counts. Navigate dependencies.
+
+<!-- tool-usage:code-end -->
+
+<!-- tool-usage:documentation-start -->
+### Documentation
+- **Always use HEXDocs tool** to get and analyze **actual documentation** for Elixir, Elixir libraries and Phoenix framework
+<!-- tool-usage:documentation-end -->
+
+<!-- tool-usage:database-start -->
+### Database Access
+- **Use only** postgres_banker_dev tool to comunicate with development database
+- **Use only** postgres_banker_test tool to comunicate with test database
+- **Only in case when** postgres_banker_dev or postgres_banker_test tools is unavaliable you can get data from databases directly:
+  - Development database: `psql banker_dev -c "<query>"`
+  - Test database: `psql banker_test -c "<query>"`
+- **NEVER** try do anything with production database. You are **FORBIDDEN** from execute any queries on prod environmemnt
+<!-- tool-usage:database-end -->
+
+<!-- tool-usage-end -->
+
+<!-- guidelines-start -->
+
+<!-- guidelines:elixir-start -->
+## Elixir Core Usage Rules
+
+### Pattern Matching
+- Use pattern matching over conditional logic when possible
+- Prefer to match on function heads instead of using `if`/`else` or `case` in function bodies
+- `%{}` matches ANY map, not just empty maps. Use `map_size(map) == 0` guard to check for truly empty maps
+
+### Error Handling
+- Use `{:ok, result}` and `{:error, reason}` tuples for operations that can fail
+- Avoid raising exceptions for control flow
+- Use `with` for chaining operations that return `{:ok, _}` or `{:error, _}`
+
+### Common Mistakes to Avoid
+- Elixir has no `return` statement, nor early returns. The last expression in a block is always returned.
+- Don't use `Enum` functions on large collections when `Stream` is more appropriate
+- Avoid nested `case` statements - refactor to a single `case`, `with` or separate functions
+- Don't use `String.to_atom/1` on user input (memory leak risk)
+- Lists and enumerables cannot be indexed with brackets. Use pattern matching or `Enum` functions
+- Prefer `Enum` functions like `Enum.reduce` over recursion
+- When recursion is necessary, prefer to use pattern matching in function heads for base case detection
+- Using the process dictionary is typically a sign of unidiomatic code
+- Only use macros if explicitly requested
+- There are many useful standard library functions, prefer to use them where possible
+- **Never** nest multiple modules in the same file as it can cause cyclic dependencies and compilation errors
+
+### Function Design
+- Use guard clauses: `when is_binary(name) and byte_size(name) > 0`
+- Prefer multiple function clauses over complex conditional logic
+- Name functions descriptively: `calculate_total_price/2` not `calc/2`
+- Predicate function names should not start with `is` and should end in a question mark.
+- Names like `is_thing` should be reserved for guards
+
+### Data Structures
+- Use structs over maps when the shape is known: `defstruct [:name, :age]`
+- Use maps for dynamic key-value data
+- **Never** use map access syntax (`changeset[:field]`) on structs as they do not implement the Access behaviour by default. For regular structs, you **must** access the fields directly, such as `my_struct.field` or use higher level APIs that are available on the struct if they exist, `Ecto.Changeset.get_field/2` for changesets
+- Elixir's standard library has everything necessary for date and time manipulation. Familiarize yourself with the common `Time`, `Date`, `DateTime`, and `Calendar` interfaces by accessing their documentation as necessary. **Never** install additional dependencies unless asked or for date/time parsing (which you can use the `date_time_parser` package)
+- Don't use `String.to_atom/1` on user input (memory leak risk)
+- Predicate function names should not start with `is_` and should end in a question mark. Names like `is_thing` should be reserved for guards
+- Elixir's builtin OTP primitives like `DynamicSupervisor` and `Registry`, require names in the child spec, such as `{DynamicSupervisor, name: Banker.MyDynamicSup}`, then you can use `DynamicSupervisor.start_child(Banker.MyDynamicSup, child_spec)`
+- Use `Task.async_stream(collection, callback, options)` for concurrent enumeration with back-pressure. The majority of times you will want to pass `timeout: :infinity` as option
+- Elixir variables are immutable, but can be rebound, so for block expressions like `if`, `case`, `cond`, etc
+  you *must* bind the result of the expression to a variable if you want to use it and you CANNOT rebind the result inside the expression, ie:
+
+      # INVALID: we are rebinding inside the `if` and the result never gets assigned
+      if connected?(socket) do
+        socket = assign(socket, :val, val)
+      end
+
+      # VALID: we rebind the result of the `if` to a new variable
+      socket =
+        if connected?(socket) do
+          assign(socket, :val, val)
+        end
+- Prefer keyword lists for options: `[timeout: 5000, retries: 3]`
+- Prefer to prepend to lists `[new | list]` not `list ++ [new]`
+- Elixir lists **do not support index based access via the access syntax**
+
+  **Never do this (invalid)**:
+
+      i = 0
+      mylist = ["blue", "green"]
+      mylist[i]
+
+  Instead, **always** use `Enum.at`, pattern matching, or `List` for index based list access, ie:
+
+      i = 0
+      mylist = ["blue", "green"]
+      Enum.at(mylist, i)
+
+
+### Mix Tasks
+
+- Use `mix help` to list available mix tasks
+- Use `mix help task_name` to get docs for an individual task
+- Read the docs and options before using tasks (by using `mix help task_name`)
+- To debug test failures, run tests in a specific file with `mix test test/my_test.exs` or run all previously failed tests with `mix test --failed`
+- `mix deps.clean --all` is **almost never needed**. **Avoid** using it unless you have good reason
+
+### Testing
+- Run tests in a specific file with `mix test test/my_test.exs` and a specific test with the line number `mix test path/to/test.exs:123`
+- Limit the number of failed tests with `mix test --max-failures n`
+- Use `@tag` to tag specific tests, and `mix test --only tag` to run only those tests
+- Use `assert_raise` for testing expected exceptions: `assert_raise ArgumentError, fn -> invalid_function() end`
+- Use `mix help test` to for full documentation on running tests
+
+### Debugging
+
+- Use `dbg/1` to print values while debugging. This will display the formatted value and other relevant information in the console.
+
+<!-- guidelines:elixir-end -->
+
+<!-- guidelines:otp-start -->
+## OTP Usage Rules
+
+### GenServer Best Practices
+- Keep state simple and serializable
+- Handle all expected messages explicitly
+- Use `handle_continue/2` for post-init work
+- Implement proper cleanup in `terminate/2` when necessary
+
+### Process Communication
+- Use `GenServer.call/3` for synchronous requests expecting replies
+- Use `GenServer.cast/2` for fire-and-forget messages.
+- When in doubt, use `call` over `cast`, to ensure back-pressure
+- Set appropriate timeouts for `call/3` operations
+
+### Fault Tolerance
+- Set up processes such that they can handle crashing and being restarted by supervisors
+- Use `:max_restarts` and `:max_seconds` to prevent restart loops
+
+### Task and Async
+- Use `Task.Supervisor` for better fault tolerance
+- Handle task failures with `Task.yield/2` or `Task.shutdown/2`
+- Set appropriate task timeouts
+- Use `Task.async_stream/3` for concurrent enumeration with back-pressure
+
+<!-- guidelines:otp-end -->
+
+<!-- guidelines-end -->
+
+<cicada>
+  **ALWAYS use cicada-mcp tools for Elixir and Python code searches. NEVER use Grep/Find for these tasks.**
+
+  ### Use cicada tools for:
+  - YOUR PRIMARY TOOL - Start here for ALL code exploration and discovery. `mcp__cicada__query`
+  - DEEP-DIVE TOOL: View a module's complete API and dependencies after discovering it with query. `mcp__cicada__search_module`
+  - DEEP-DIVE TOOL: Find function definitions and call sites after discovering with query. `mcp__cicada__search_function`
+  - UNIFIED HISTORY TOOL: One tool for all git history queries - replaces get_blame, get_commit_history, find_pr_for_line, and get_file_pr_history. `mcp__cicada__git_history`
+  - ANALYSIS TOOL: Find potentially unused public functions with confidence levels. `mcp__cicada__find_dead_code`
+  - DRILL-DOWN TOOL: Expand a query result to see complete details. `mcp__cicada__expand_result`
+  - ADVANCED: Execute jq queries directly against the Cicada index for custom analysis and data exploration. `mcp__cicada__query_jq`
+
+  ### DO NOT use Grep for:
+  - ❌ Searching for module structure
+  - ❌ Searching for function definitions
+  - ❌ Searching for module imports/usage
+
+  ### You can still use Grep for:
+  - ✓ Non-code files (markdown, JSON, config)
+  - ✓ String literal searches
+  - ✓ Pattern matching in single line comments
+</cicada>
+

CLAUDE.md

@@ -0,0 +1 @@
+./Agents.md

README.md

@@ -29,7 +29,7 @@ In just a few letters and numbers, the IBAN captures all of the country, bank, a
 #### To check IBAN's country is supported
 
   ```elixir
-      iex> {:error, unsupported_country_code} = IbanEx.Parser.parse("AZ21NABZ00000000137010001944")
+      iex> {:error, unsupported_country_code} = IbanEx.Parser.parse("ZU21NABZ00000000137010001944")
       {:error, :unsupported_country_code}
       iex> IbanEx.Error.message(unsupported_country_code)
       "Unsupported country code"
@@ -71,7 +71,7 @@ The package can be installed by adding `iban_ex` to your list of dependencies in
 ```elixir
 def deps do
   [
-    {:iban_ex, "~> 0.1.5"}
+    {:iban_ex, "~> 0.1.8"}
   ]
 end
 ```

TODO.md

@@ -0,0 +1,56 @@
+TODO Check Regexes and add unsupported now countries
+
+```elixir
+"AA" => %{length: 16, rule: ~r/^[0-9A-Z]{12}$/i},
+"AO" => %{length: 25, rule: ~r/^[0-9]{21}$/i},
+"AX" => %{length: 18, rule: ~r/^[0-9]{14}$/i},
+"BF" => %{length: 27, rule: ~r/^[0-9]{23}$/i},
+"BI" => %{length: 16, rule: ~r/^[0-9]{12}$/i},
+"BJ" => %{length: 28, rule: ~r/^[A-Z]{1}[0-9]{23}$/i},
+"BL" => %{length: 27, rule: ~r/^[0-9]{10}[0-9A-Z]{11}[0-9]{2}$/i},
+"BY" => %{length: 28, rule: ~r/^[0-9A-Z]{4}[0-9]{4}[0-9A-Z]{16}$/i},
+"CF" => %{length: 27, rule: ~r/^[0-9]{23}$/i},
+"CG" => %{length: 27, rule: ~r/^[0-9]{23}$/i},
+"CI" => %{length: 28, rule: ~r/^[A-Z]{1}[0-9]{23}$/i},
+"CM" => %{length: 27, rule: ~r/^[0-9]{23}$/i},
+"CV" => %{length: 25, rule: ~r/^[0-9]{21}$/i},
+"DJ" => %{length: 27, rule: ~r/^[0-9]{23}$/i},
+"DZ" => %{length: 24, rule: ~r/^[0-9]{20}$/i},
+"GA" => %{length: 27, rule: ~r/^[0-9]{23}$/i},
+"GF" => %{length: 27, rule: ~r/^[0-9]{10}[0-9A-Z]{11}[0-9]{2}$/i},
+"GP" => %{length: 27, rule: ~r/^[0-9]{10}[0-9A-Z]{11}[0-9]{2}$/i},
+"GQ" => %{length: 27, rule: ~r/^[0-9]{23}$/i},
+"GW" => %{length: 25, rule: ~r/^[0-9A-Z]{2}[0-9]{19}$/i},
+"HN" => %{length: 28, rule: ~r/^[A-Z]{4}[0-9]{20}$/i},
+"IE" => %{length: 22, rule: ~r/^[A-Z]{4}[0-9]{14}$/i},
+"IQ" => %{length: 23, rule: ~r/^[0-9A-Z]{4}[0-9]{15}$/i},
+"IR" => %{length: 26, rule: ~r/^[0-9]{22}$/i},
+"IS" => %{length: 26, rule: ~r/^[0-9]{22}$/i},
+"KM" => %{length: 27, rule: ~r/^[0-9]{23}$/i},
+"LC" => %{length: 32, rule: ~r/^[A-Z]{4}[0-9A-Z]{24}$/i},
+"MA" => %{length: 28, rule: ~r/^[0-9]{24}$/i},
+"MF" => %{length: 27, rule: ~r/^[0-9]{10}[0-9A-Z]{11}[0-9]{2}$/i},
+"MG" => %{length: 27, rule: ~r/^[0-9]{23}$/i},
+"MK" => %{length: 19, rule: ~r/^[0-9]{3}[0-9A-Z]{10}[0-9]{2}$/i},
+"ML" => %{length: 28, rule: ~r/^[A-Z]{1}[0-9]{23}$/i},
+"MQ" => %{length: 27, rule: ~r/^[0-9]{10}[0-9A-Z]{11}[0-9]{2}$/i},
+"MU" => %{length: 30, rule: ~r/^[A-Z]{4}[0-9]{19}[A-Z]{3}$/i},
+"MZ" => %{length: 25, rule: ~r/^[0-9]{21}$/i},
+"NC" => %{length: 27, rule: ~r/^[0-9]{10}[0-9A-Z]{11}[0-9]{2}$/i},
+"NE" => %{length: 28, rule: ~r/^[A-Z]{2}[0-9]{22}$/i},
+"NI" => %{length: 32, rule: ~r/^[A-Z]{4}[0-9]{24}$/i},
+"PF" => %{length: 27, rule: ~r/^[0-9]{10}[0-9A-Z]{11}[0-9]{2}$/i},
+"PM" => %{length: 27, rule: ~r/^[0-9]{10}[0-9A-Z]{11}[0-9]{2}$/i},
+"PS" => %{length: 29, rule: ~r/^[A-Z]{4}[0-9A-Z]{21}$/i},
+"QA" => %{length: 29, rule: ~r/^[A-Z]{4}[0-9]{4}[0-9A-Z]{17}$/i},
+"RE" => %{length: 27, rule: ~r/^[0-9]{10}[0-9A-Z]{11}[0-9]{2}$/i},
+"SC" => %{length: 31, rule: ~r/^[A-Z]{4}[0-9]{20}[A-Z]{3}$/i},
+"SN" => %{length: 28, rule: ~r/^[A-Z]{1}[0-9]{23}$/i},
+"ST" => %{length: 25, rule: ~r/^[0-9]{8}[0-9]{13}$/i},
+"TD" => %{length: 27, rule: ~r/^[0-9]{23}$/i},
+"TF" => %{length: 27, rule: ~r/^[0-9]{10}[0-9A-Z]{11}[0-9]{2}$/i},
+"TG" => %{length: 28, rule: ~r/^[A-Z]{2}[0-9]{22}$/i},
+"TN" => %{length: 24, rule: ~r/^[0-9]{20}$/i},
+"WF" => %{length: 27, rule: ~r/^[0-9]{10}[0-9A-Z]{11}[0-9]{2}$/i},
+"YT" => %{length: 27, rule: ~r/^[0-9]{10}[0-9A-Z]{11}[0-9]{2}$/i}
+```

docs/international_wide_ibans/get_iban_registry.py

@@ -0,0 +1,86 @@
+#!/usr/bin/env python
+import json
+import re
+from urllib.parse import urljoin
+
+import requests
+from bs4 import BeautifulSoup
+
+
+COUNTRY_CODE_PATTERN = r"[A-Z]{2}"
+EMPTY_RANGE = (0, 0)
+URL = "https://www.swift.com/standards/data-standards/iban"
+
+
+def get_raw():
+    soup = BeautifulSoup(requests.get(URL).content, "html.parser")
+    link = soup.find("a", attrs={"data-tracking-title": "IBAN Registry (TXT)"})
+    return requests.get(urljoin(URL, link["href"])).content.decode(encoding="latin1")
+
+
+def parse_int(raw):
+    return int(re.search(r"\d+", raw).group())
+
+
+def parse_range(raw):
+    pattern = r".*?(?P<from>\d+)\s*-\s*(?P<to>\d+)"
+    match = re.search(pattern, raw)
+    if not match:
+        return EMPTY_RANGE
+    return (int(match["from"]) - 1, int(match["to"]))
+
+
+def parse(raw):
+    columns = {}
+    for line in raw.split("\r\n"):
+        header, *rows = line.split("\t")
+        if header == "IBAN prefix country code (ISO 3166)":
+            columns["country"] = [re.search(COUNTRY_CODE_PATTERN, item).group() for item in rows]
+        elif header == "Country code includes other countries/territories":
+            columns["other_countries"] = [re.findall(COUNTRY_CODE_PATTERN, item) for item in rows]
+        elif header == "BBAN structure":
+            columns["bban_spec"] = rows
+        elif header == "BBAN length":
+            columns["bban_length"] = [parse_int(item) for item in rows]
+        elif header == "Bank identifier position within the BBAN":
+            columns["bank_code_position"] = [parse_range(item) for item in rows]
+        elif header == "Branch identifier position within the BBAN":
+            columns["branch_code_position"] = [parse_range(item) for item in rows]
+        elif header == "IBAN structure":
+            columns["iban_spec"] = rows
+        elif header == "IBAN length":
+            columns["iban_length"] = [parse_int(item) for item in rows]
+    return [dict(zip(columns.keys(), row)) for row in zip(*columns.values())]
+
+
+def process(records):
+    registry = {}
+    for record in records:
+        country_codes = [record["country"]]
+        country_codes.extend(record["other_countries"])
+        for code in country_codes:
+            registry[code] = {
+                "bban_spec": record["bban_spec"],
+                "iban_spec": record["iban_spec"],
+                "bban_length": record["bban_length"],
+                "iban_length": record["iban_length"],
+                "positions": process_positions(record),
+            }
+    return registry
+
+
+def process_positions(record):
+    bank_code = record["bank_code_position"]
+    branch_code = record["branch_code_position"]
+    if branch_code == EMPTY_RANGE:
+        branch_code = (bank_code[1], bank_code[1])
+    return {
+        "account_code": (max(bank_code[1], branch_code[1]), record["bban_length"]),
+        "bank_code": bank_code,
+        "branch_code": branch_code,
+    }
+
+
+if __name__ == "__main__":
+    with open("schwifty/iban_registry/generated.json", "w+") as fp:
+        json.dump(process(parse(get_raw())), fp, indent=2)

lib/iban_ex/commons/commons.ex

@@ -1,6 +1,11 @@
 defmodule IbanEx.Commons do
   @moduledoc false
 
+  @spec blank(nil | binary()) :: nil | binary()
+  def blank(nil), do: nil
+  def blank(""), do: nil
+  def blank(string) when is_binary(string), do: string
+
   @spec normalize(binary()) :: binary()
   def normalize(string) do
     string

lib/iban_ex/country.ex

@@ -7,42 +7,75 @@ defmodule IbanEx.Country do
   @type error_tuple() :: {:error, atom()}
 
   @supported_countries %{
+    "AD" => IbanEx.Country.AD,
+    "AE" => IbanEx.Country.AE,
+    "AL" => IbanEx.Country.AL,
     "AT" => IbanEx.Country.AT,
+    "AZ" => IbanEx.Country.AZ,
+    "BA" => IbanEx.Country.BA,
     "BE" => IbanEx.Country.BE,
     "BG" => IbanEx.Country.BG,
+    "BH" => IbanEx.Country.BH,
+    "BR" => IbanEx.Country.BR,
     "CH" => IbanEx.Country.CH,
+    "CR" => IbanEx.Country.CR,
     "CY" => IbanEx.Country.CY,
     "CZ" => IbanEx.Country.CZ,
     "DE" => IbanEx.Country.DE,
+    "DO" => IbanEx.Country.DO,
     "DK" => IbanEx.Country.DK,
     "EE" => IbanEx.Country.EE,
     "ES" => IbanEx.Country.ES,
+    "EG" => IbanEx.Country.EG,
     "FI" => IbanEx.Country.FI,
     "FR" => IbanEx.Country.FR,
+    "FO" => IbanEx.Country.FO,
     "GB" => IbanEx.Country.GB,
+    "GE" => IbanEx.Country.GE,
     "GI" => IbanEx.Country.GI,
+    "GL" => IbanEx.Country.GL,
     "GR" => IbanEx.Country.GR,
+    "GT" => IbanEx.Country.GT,
     "HR" => IbanEx.Country.HR,
     "HU" => IbanEx.Country.HU,
     "IE" => IbanEx.Country.IE,
+    "IL" => IbanEx.Country.IL,
     "IT" => IbanEx.Country.IT,
+    "IS" => IbanEx.Country.IS,
+    "JO" => IbanEx.Country.JO,
+    "KZ" => IbanEx.Country.KZ,
+    "KW" => IbanEx.Country.KW,
+    "LB" => IbanEx.Country.LB,
     "LI" => IbanEx.Country.LI,
     "LT" => IbanEx.Country.LT,
     "LU" => IbanEx.Country.LU,
     "LV" => IbanEx.Country.LV,
     "MC" => IbanEx.Country.MC,
+    "MD" => IbanEx.Country.MD,
+    "ME" => IbanEx.Country.ME,
+    "MK" => IbanEx.Country.MK,
+    "MR" => IbanEx.Country.MR,
     "MT" => IbanEx.Country.MT,
     "NL" => IbanEx.Country.NL,
     "NO" => IbanEx.Country.NO,
     "PL" => IbanEx.Country.PL,
     "PT" => IbanEx.Country.PT,
+    "PK" => IbanEx.Country.PK,
+    "QA" => IbanEx.Country.QA,
     "RO" => IbanEx.Country.RO,
+    "RS" => IbanEx.Country.RS,
+    "SA" => IbanEx.Country.SA,
     "SE" => IbanEx.Country.SE,
-    "SM" => IbanEx.Country.SM,
     "SI" => IbanEx.Country.SI,
     "SK" => IbanEx.Country.SK,
+    "SM" => IbanEx.Country.SM,
+    "SV" => IbanEx.Country.SV,
+    "TL" => IbanEx.Country.TL,
+    "TR" => IbanEx.Country.TR,
     "UA" => IbanEx.Country.UA,
-    "VA" => IbanEx.Country.VA
+    "VA" => IbanEx.Country.VA,
+    "VG" => IbanEx.Country.VG,
+    "XK" => IbanEx.Country.XK
   }
 
   @supported_country_codes Map.keys(@supported_countries)
@@ -57,7 +90,7 @@ def supported_country_codes(), do: @supported_country_codes
   @spec supported_country_modules() :: [module()] | []
   def supported_country_modules(), do: @supported_country_modules
 
-  @spec country_module(country_code) :: Module.t() | error_tuple()
+  @spec country_module(country_code) :: module() | error_tuple()
   def country_module(country_code) when is_binary(country_code) or is_atom(country_code) do
     normalized_country_code = normalize(country_code)
     case is_country_code_supported?(normalized_country_code) do

lib/iban_ex/country/ad.ex

@@ -0,0 +1,42 @@
+defmodule IbanEx.Country.AD do
+  @moduledoc """
+  Andorra IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "AD",
+      ...>    check_digits: "12",
+      ...>    bank_code: "0001",
+      ...>    branch_code: "2030",
+      ...>    national_check: nil,
+      ...>    account_number: "200359100100"
+      ...>  }
+      ...>  |> IbanEx.Country.AD.to_string()
+      "AD 12 0001 2030 200359100100"
+  ```
+  """
+
+  @size 24
+  @rule ~r/^(?<bank_code>[0-9]{4})(?<branch_code>[0-9]{4})(?<account_number>[0-9A-Z]{12})$/i
+
+  use 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, branch_code, account_number]
+    |> Enum.join(joiner)
+  end
+end

lib/iban_ex/country/ae.ex

@@ -0,0 +1,25 @@
+defmodule IbanEx.Country.AE do
+  @moduledoc """
+  United Arab Emirates IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "AE",
+      ...>    check_digits: "07",
+      ...>    bank_code: "033",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "1234567890123456"
+      ...>  }
+      ...>  |> IbanEx.Country.AE.to_string()
+      "AE 07 033 1234567890123456"
+  ```
+  """
+
+  @size 23
+  @rule ~r/^(?<bank_code>[0-9]{3})(?<account_number>[0-9]{16})$/i
+
+  use IbanEx.Country.Template
+end

lib/iban_ex/country/al.ex

@@ -0,0 +1,42 @@
+defmodule IbanEx.Country.AL do
+  @moduledoc """
+  Albania IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "AL",
+      ...>    check_digits: "47",
+      ...>    bank_code: "212",
+      ...>    branch_code: "1100",
+      ...>    national_check: "9",
+      ...>    account_number: "0000000235698741"
+      ...>  }
+      ...>  |> IbanEx.Country.AL.to_string()
+      "AL 47 212 1100 9 0000000235698741"
+  ```
+  """
+
+  @size 28
+  @rule ~r/^(?<bank_code>[0-9]{3})(?<branch_code>[0-9]{4})(?<national_check>[0-9]{1})(?<account_number>[0-9A-Z]{16})$/i
+
+  use 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, branch_code, national_check, account_number]
+    |> Enum.join(joiner)
+  end
+end

lib/iban_ex/country/az.ex

@@ -0,0 +1,25 @@
+defmodule IbanEx.Country.AZ do
+  @moduledoc """
+  Azerbaijan IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "AZ",
+      ...>    check_digits: "21",
+      ...>    bank_code: "NABZ",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "00000000137010001944"
+      ...>  }
+      ...>  |> IbanEx.Country.AZ.to_string()
+      "AZ 21 NABZ 00000000137010001944"
+  ```
+  """
+
+  @size 28
+  @rule ~r/^(?<bank_code>[A-Z]{4})(?<account_number>[0-9A-Z]{20})$/i
+
+  use IbanEx.Country.Template
+end

lib/iban_ex/country/ba.ex

@@ -0,0 +1,42 @@
+defmodule IbanEx.Country.BA do
+  @moduledoc """
+  Bosnia and Herzegovina IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "BA",
+      ...>    check_digits: "39",
+      ...>    bank_code: "129",
+      ...>    branch_code: "007",
+      ...>    national_check: "94",
+      ...>    account_number: "94010284"
+      ...>  }
+      ...>  |> IbanEx.Country.BA.to_string()
+      "BA 39 129 007 94010284 94"
+  ```
+  """
+
+  @size 20
+  @rule ~r/^(?<bank_code>[0-9]{3})(?<branch_code>[0-9]{3})(?<account_number>[0-9]{8})(?<national_check>[0-9]{2})$/i
+
+  use 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, branch_code, account_number, national_check]
+    |> Enum.join(joiner)
+  end
+end

lib/iban_ex/country/bg.ex

@@ -1,4 +1,6 @@
 defmodule IbanEx.Country.BG do
+  # TODO Bulgaria IBAN contains account type (first 2 digits of account number)
+
   @moduledoc """
   Bulgaria IBAN parsing rules
 

lib/iban_ex/country/bh.ex

@@ -0,0 +1,25 @@
+defmodule IbanEx.Country.BH do
+  @moduledoc """
+  Bahrain IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "BH",
+      ...>    check_digits: "67",
+      ...>    bank_code: "BMAG",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "00001299123456"
+      ...>  }
+      ...>  |> IbanEx.Country.BH.to_string()
+      "BH 67 BMAG 00001299123456"
+  ```
+  """
+
+  @size 22
+  @rule ~r/^(?<bank_code>[A-Z]{4})(?<account_number>[0-9]{14})$/i
+
+  use IbanEx.Country.Template
+end

lib/iban_ex/country/br.ex

@@ -0,0 +1,42 @@
+defmodule IbanEx.Country.BR do
+  @moduledoc """
+  Brazil IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "BR",
+      ...>    check_digits: "18",
+      ...>    bank_code: "00360305",
+      ...>    branch_code: "00001",
+      ...>    account_number: "0009795493",
+      ...>    national_check: "C1"
+      ...>  }
+      ...>  |> IbanEx.Country.BR.to_string()
+      "BR 18 00360305 00001 0009795493 C1"
+  ```
+  """
+
+  @size 29
+  @rule ~r/^(?<bank_code>[0-9]{8})(?<branch_code>[0-9]{5})(?<account_number>[0-9]{10})(?<national_check>[A-Z]{1}[0-9A-Z]{1})$/i
+
+  use 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,
+          account_number: account_number,
+          national_check: national_check
+        } = _iban,
+        joiner \\ " "
+      ) do
+    [country_code, check_digits, bank_code, branch_code, account_number, national_check]
+    |> Enum.join(joiner)
+  end
+end

lib/iban_ex/country/ch.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.CH do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "CH", check_digits: "93", bank_code: "00762", branch_code: nil, national_check: nil, account_number: "011623852957"}
+  ```elixir
-    iex> |> IbanEx.Country.CH.to_string()
+      iex>  %IbanEx.Iban{
-    "CH 93 00762 011623852957"
+      ...>    country_code: "CH",
-
+      ...>    check_digits: "93",
+      ...>    bank_code: "00762",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "011623852957"
+      ...>  }
+      ...>  |> IbanEx.Country.CH.to_string()
+      "CH 93 00762 011623852957"
+  ```
   """
 
   @size 21

lib/iban_ex/country/cr.ex

@@ -0,0 +1,25 @@
+defmodule IbanEx.Country.CR do
+  @moduledoc """
+  Costa Rica IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "CR",
+      ...>    check_digits: "05",
+      ...>    bank_code: "0152",
+      ...>    branch_code: nil,
+      ...>    account_number: "02001026284066",
+      ...>    national_check: nil
+      ...>  }
+      ...>  |> IbanEx.Country.CR.to_string()
+      "CR 05 0152 02001026284066"
+  ```
+  """
+
+  @size 22
+  @rule ~r/^(?<bank_code>[0-9]{4})(?<account_number>[0-9]{14})$/i
+
+  use IbanEx.Country.Template
+end

lib/iban_ex/country/cy.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.CY do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "CY", check_digits: "17", bank_code: "002", branch_code: "00128", national_check: nil, account_number: "0000001200527600"}
+  ```elixir
-    iex> |> IbanEx.Country.CY.to_string()
+      iex>  %IbanEx.Iban{
-    "CY 17 002 00128 0000001200527600"
+      ...>    country_code: "CY",
-
+      ...>    check_digits: "17",
+      ...>    bank_code: "002",
+      ...>    branch_code: "00128",
+      ...>    national_check: nil,
+      ...>    account_number: "0000001200527600"
+      ...>  }
+      ...>  |> IbanEx.Country.CY.to_string()
+      "CY 17 002 00128 0000001200527600"
+  ```
   """
 
   @size 28

lib/iban_ex/country/cz.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.CZ do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "CZ", check_digits: "65", bank_code: "0800", branch_code: nil, national_check: nil, account_number: "0000192000145399"}
+  ```elixir
-    iex> |> IbanEx.Country.CZ.to_string()
+      iex>  %IbanEx.Iban{
-    "CZ 65 0800 0000192000145399"
+      ...>    country_code: "CZ",
-
+      ...>    check_digits: "65",
+      ...>    bank_code: "0800",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "0000192000145399"
+      ...>  }
+      ...>  |> IbanEx.Country.CZ.to_string()
+      "CZ 65 0800 0000192000145399"
+  ```
   """
 
   @size 24

lib/iban_ex/country/de.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.DE do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "DE", check_digits: "89", bank_code: "37040044", branch_code: nil, national_check: nil, account_number: "0532013000"}
+  ```elixir
-    iex> |> IbanEx.Country.DE.to_string()
+      iex>  %IbanEx.Iban{
-    "DE 89 37040044 0532013000"
+      ...>    country_code: "DE",
-
+      ...>    check_digits: "89",
+      ...>    bank_code: "37040044",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "0532013000"
+      ...>  }
+      ...>  |> IbanEx.Country.DE.to_string()
+      "DE 89 37040044 0532013000"
+  ```
   """
 
   @size 22

lib/iban_ex/country/dk.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.DK do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "DK", check_digits: "50", bank_code: "0040", branch_code: nil, national_check: nil, account_number: "0440116243"}
+  ```elixir
-    iex> |> IbanEx.Country.DK.to_string()
+      iex>  %IbanEx.Iban{
-    "DK 50 0040 0440116243"
+      ...>    country_code: "DK",
-
+      ...>    check_digits: "50",
+      ...>    bank_code: "0040",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "0440116243"
+      ...>  }
+      ...>  |> IbanEx.Country.DK.to_string()
+      "DK 50 0040 0440116243"
+  ```
   """
   @size 18
   @rule ~r/^(?<bank_code>[0-9]{4})(?<account_number>[0-9]{10})$/i

lib/iban_ex/country/do.ex

@@ -0,0 +1,25 @@
+defmodule IbanEx.Country.DO do
+  @moduledoc """
+  Dominican Republic IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "DO",
+      ...>    check_digits: "28",
+      ...>    bank_code: "BAGR",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "00000001212453611324"
+      ...>  }
+      ...>  |> IbanEx.Country.DO.to_string()
+      "DO 28 BAGR 00000001212453611324"
+  ```
+  """
+
+  @size 28
+  @rule ~r/^(?<bank_code>[0-9A-Z]{4})(?<account_number>[0-9]{20})$/i
+
+  use IbanEx.Country.Template
+end

lib/iban_ex/country/ee.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.EE do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "EE", check_digits: "38", bank_code: "22", branch_code: "00", national_check: "5", account_number: "22102014568"}
+  ```elixir
-    iex> |> IbanEx.Country.EE.to_string()
+      iex>  %IbanEx.Iban{
-    "EE 38 22 00 22102014568 5"
+      ...>    country_code: "EE",
-
+      ...>    check_digits: "38",
+      ...>    bank_code: "22",
+      ...>    branch_code: "00",
+      ...>    national_check: "5",
+      ...>    account_number: "22102014568"
+      ...>  }
+      ...>  |> IbanEx.Country.EE.to_string()
+      "EE 38 22 00 22102014568 5"
+  ```
   """
 
   @size 20

lib/iban_ex/country/eg.ex

@@ -0,0 +1,42 @@
+defmodule IbanEx.Country.EG do
+  @moduledoc """
+  Egypt IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "EG",
+      ...>    check_digits: "38",
+      ...>    bank_code: "0019",
+      ...>    branch_code: "0005",
+      ...>    national_check: nil,
+      ...>    account_number: "00000000263180002"
+      ...>  }
+      ...>  |> IbanEx.Country.EG.to_string()
+      "EG 38 0019 0005 00000000263180002"
+  ```
+  """
+
+  @size 29
+  @rule ~r/^(?<bank_code>[0-9]{4})(?<branch_code>[0-9]{4})(?<account_number>[0-9]{17})$/i
+
+  use 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, branch_code, account_number]
+    |> Enum.join(joiner)
+  end
+end

lib/iban_ex/country/es.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.ES do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "ES", check_digits: "91", bank_code: "2100", branch_code: "0418", national_check: "45", account_number: "0200051332"}
+  ```elixir
-    iex> |> IbanEx.Country.ES.to_string()
+      iex>  %IbanEx.Iban{
-    "ES 91 2100 0418 45 0200051332"
+      ...>    country_code: "ES",
-
+      ...>    check_digits: "91",
+      ...>    bank_code: "2100",
+      ...>    branch_code: "0418",
+      ...>    national_check: "45",
+      ...>    account_number: "0200051332"
+      ...>  }
+      ...>  |> IbanEx.Country.ES.to_string()
+      "ES 91 2100 0418 45 0200051332"
+  ```
   """
 
   @size 24

lib/iban_ex/country/fi.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.FI do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "FI", check_digits: "21", bank_code: "123456", branch_code: nil, national_check: "5", account_number: "0000078"}
+  ```elixir
-    iex> |> IbanEx.Country.FI.to_string()
+      iex>  %IbanEx.Iban{
-    "FI 21 123456 0000078 5"
+      ...>    country_code: "FI",
-
+      ...>    check_digits: "21",
+      ...>    bank_code: "123456",
+      ...>    branch_code: nil,
+      ...>    national_check: "5",
+      ...>    account_number: "0000078"
+      ...>  }
+      ...>  |> IbanEx.Country.FI.to_string()
+      "FI 21 123456 0000078 5"
+  ```
   """
 
   @size 18

lib/iban_ex/country/fo.ex

@@ -0,0 +1,43 @@
+defmodule IbanEx.Country.FO do
+  @moduledoc """
+  Faroe Islands IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "FO",
+      ...>    check_digits: "62",
+      ...>    bank_code: "6460",
+      ...>    branch_code: nil,
+      ...>    national_check: "4",
+      ...>    account_number: "000163163"
+      ...>  }
+      ...>  |> IbanEx.Country.FO.to_string()
+      "FO 62 6460 000163163 4"
+  ```
+  """
+
+  @size 18
+  @rule ~r/^(?<bank_code>[0-9]{4})(?<account_number>[0-9]{9})(?<national_check>[0-9]{1})$/i
+
+  use 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, national_check]
+    |> Enum.join(joiner)
+  end
+end

lib/iban_ex/country/fr.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.FR do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "FR", check_digits: "14", bank_code: "20041", branch_code: "01005", national_check: "06", account_number: "0500013M026"}
+  ```elixir
-    iex> |> IbanEx.Country.FR.to_string()
+      iex>  %IbanEx.Iban{
-    "FR 14 20041 01005 0500013M026 06"
+      ...>    country_code: "FR",
-
+      ...>    check_digits: "14",
+      ...>    bank_code: "20041",
+      ...>    branch_code: "01005",
+      ...>    national_check: "06",
+      ...>    account_number: "0500013M026"
+      ...>  }
+      ...>  |> IbanEx.Country.FR.to_string()
+      "FR 14 20041 01005 0500013M026 06"
+  ```
   """
 
   @size 27

lib/iban_ex/country/gb.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.GB do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "GB", check_digits: "29", bank_code: "NWBK", branch_code: "601613", national_check: "06", account_number: "31926819"}
+  ```elixir
-    iex> |> IbanEx.Country.GB.to_string()
+      iex>  %IbanEx.Iban{
-    "GB 29 NWBK 601613 31926819"
+      ...>    country_code: "GB",
-
+      ...>    check_digits: "29",
+      ...>    bank_code: "NWBK",
+      ...>    branch_code: "601613",
+      ...>    national_check: "06",
+      ...>    account_number: "31926819"
+      ...>  }
+      ...>  |> IbanEx.Country.GB.to_string()
+      "GB 29 NWBK 601613 31926819"
+  ```
   """
 
   @size 22

lib/iban_ex/country/ge.ex

@@ -0,0 +1,25 @@
+defmodule IbanEx.Country.GE do
+  @moduledoc """
+  Georgia IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "GE",
+      ...>    check_digits: "29",
+      ...>    bank_code: "NB",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "0000000101904917"
+      ...>  }
+      ...>  |> IbanEx.Country.GE.to_string()
+      "GE 29 NB 0000000101904917"
+  ```
+  """
+
+  @size 22
+  @rule ~r/^(?<bank_code>[A-Z]{2})(?<account_number>[0-9]{16})$/i
+
+  use IbanEx.Country.Template
+end

lib/iban_ex/country/gi.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.GI do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "GI", check_digits: "75", bank_code: "NWBK", branch_code: nil, national_check: nil, account_number: "000000007099453"}
+  ```elixir
-    iex> |> IbanEx.Country.GI.to_string()
+      iex>  %IbanEx.Iban{
-    "GI 75 NWBK 000000007099453"
+      ...>    country_code: "GI",
-
+      ...>    check_digits: "75",
+      ...>    bank_code: "NWBK",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "000000007099453"
+      ...>  }
+      ...>  |> IbanEx.Country.GI.to_string()
+      "GI 75 NWBK 000000007099453"
+  ```
   """
 
   @size 23

lib/iban_ex/country/gl.ex

@@ -0,0 +1,25 @@
+defmodule IbanEx.Country.GL do
+  @moduledoc """
+  Greenland IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "GL",
+      ...>    check_digits: "89",
+      ...>    bank_code: "6471",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "0001000206"
+      ...>  }
+      ...>  |> IbanEx.Country.GL.to_string()
+      "GL 89 6471 0001000206"
+  ```
+  """
+
+  @size 18
+  @rule ~r/^(?<bank_code>[0-9]{4})(?<account_number>[0-9]{10})$/i
+
+  use IbanEx.Country.Template
+end

lib/iban_ex/country/gr.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.GR do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "GR", check_digits: "16", bank_code: "011", branch_code: "0125", national_check: nil, account_number: "0000000012300695"}
+  ```elixir
-    iex> |> IbanEx.Country.GR.to_string()
+      iex>  %IbanEx.Iban{
-    "GR 16 011 0125 0000000012300695"
+      ...>    country_code: "GR",
-
+      ...>    check_digits: "16",
+      ...>    bank_code: "011",
+      ...>    branch_code: "0125",
+      ...>    national_check: nil,
+      ...>    account_number: "0000000012300695"
+      ...>  }
+      ...>  |> IbanEx.Country.GR.to_string()
+      "GR 16 011 0125 0000000012300695"
+  ```
   """
 
   @size 27

lib/iban_ex/country/gt.ex

@@ -0,0 +1,25 @@
+defmodule IbanEx.Country.GT do
+  @moduledoc """
+  Guatemala IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "GT",
+      ...>    check_digits: "82",
+      ...>    bank_code: "TRAJ",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "01020000001210029690"
+      ...>  }
+      ...>  |> IbanEx.Country.GT.to_string()
+      "GT 82 TRAJ 01020000001210029690"
+  ```
+  """
+
+  @size 28
+  @rule ~r/^(?<bank_code>[A-Z]{4})(?<account_number>[0-9]{20})$/i
+
+  use IbanEx.Country.Template
+end

lib/iban_ex/country/hr.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.HR do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "HR", check_digits: "12", bank_code: "1001005", branch_code: nil, national_check: nil, account_number: "1863000160"}
+  ```elixir
-    iex> |> IbanEx.Country.HR.to_string()
+      iex>  %IbanEx.Iban{
-    "HR 12 1001005 1863000160"
+      ...>    country_code: "HR",
-
+      ...>    check_digits: "12",
+      ...>    bank_code: "1001005",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "1863000160"
+      ...>  }
+      ...>  |> IbanEx.Country.HR.to_string()
+      "HR 12 1001005 1863000160"
+  ```
   """
 
   @size 21

lib/iban_ex/country/hu.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.HU do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "HU", check_digits: "42", bank_code: "117", branch_code: "7301", national_check: "0", account_number: "6111110180000000"}
+  ```elixir
-    iex> |> IbanEx.Country.HU.to_string()
+      iex>  %IbanEx.Iban{
-    "HU 42 117 7301 6111110180000000 0"
+      ...>    country_code: "HU",
-
+      ...>    check_digits: "42",
+      ...>    bank_code: "117",
+      ...>    branch_code: "7301",
+      ...>    national_check: "0",
+      ...>    account_number: "6111110180000000"
+      ...>  }
+      ...>  |> IbanEx.Country.HU.to_string()
+      "HU 42 117 7301 6111110180000000 0"
+  ```
   """
 
   @size 28

lib/iban_ex/country/ie.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.IE do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "IE", check_digits: "29", bank_code: "AIBK", branch_code: "931152", national_check: nil, account_number: "12345678"}
+  ```elixir
-    iex> |> IbanEx.Country.IE.to_string()
+      iex>  %IbanEx.Iban{
-    "IE 29 AIBK 931152 12345678"
+      ...>    country_code: "IE",
-
+      ...>    check_digits: "29",
+      ...>    bank_code: "AIBK",
+      ...>    branch_code: "931152",
+      ...>    national_check: nil,
+      ...>    account_number: "12345678"
+      ...>  }
+      ...>  |> IbanEx.Country.IE.to_string()
+      "IE 29 AIBK 931152 12345678"
+  ```
   """
 
   @size 22

lib/iban_ex/country/il.ex

@@ -0,0 +1,42 @@
+defmodule IbanEx.Country.IL do
+  @moduledoc """
+  Israel IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "IL",
+      ...>    check_digits: "62",
+      ...>    bank_code: "010",
+      ...>    branch_code: "800",
+      ...>    national_check: nil,
+      ...>    account_number: "0000099999999"
+      ...>  }
+      ...>  |> IbanEx.Country.IL.to_string()
+      "IL 62 010 800 0000099999999"
+  ```
+  """
+
+  @size 23
+  @rule ~r/^(?<bank_code>[0-9]{3})(?<branch_code>[0-9]{3})(?<account_number>[0-9]{13})$/i
+
+  use 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, branch_code, account_number]
+    |> Enum.join(joiner)
+  end
+end

lib/iban_ex/country/is.ex

@@ -0,0 +1,45 @@
+defmodule IbanEx.Country.IS do
+  # TODO Iceland IBAN contains identification number (last 10 digits of account number)
+
+  @moduledoc """
+  Island IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "IS",
+      ...>    check_digits: "14",
+      ...>    bank_code: "0159",
+      ...>    branch_code: "26",
+      ...>    national_check: nil,
+      ...>    account_number: "0076545510730339"
+      ...>  }
+      ...>  |> IbanEx.Country.IS.to_string()
+      "IS 14 0159 26 0076545510730339"
+  ```
+  """
+
+  @size 26
+  @rule ~r/^(?<bank_code>[0-9]{4})(?<branch_code>[0-9]{2})(?<account_number>[0-9]{16})$/i
+
+  use 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, branch_code, account_number]
+    |> Enum.join(joiner)
+  end
+end

lib/iban_ex/country/it.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.IT do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "IT", check_digits: "60", bank_code: "05428", branch_code: "11101", national_check: "X", account_number: "000000123456"}
+  ```elixir
-    iex> |> IbanEx.Country.IT.to_string()
+      iex>  %IbanEx.Iban{
-    "IT 60 X 05428 11101 000000123456"
+      ...>    country_code: "IT",
-
+      ...>    check_digits: "60",
+      ...>    bank_code: "05428",
+      ...>    branch_code: "11101",
+      ...>    national_check: "X",
+      ...>    account_number: "000000123456"
+      ...>  }
+      ...>  |> IbanEx.Country.IT.to_string()
+      "IT 60 X 05428 11101 000000123456"
+  ```
   """
 
   @size 27

lib/iban_ex/country/jo.ex

@@ -0,0 +1,42 @@
+defmodule IbanEx.Country.JO do
+  @moduledoc """
+  Jordan IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "JO",
+      ...>    check_digits: "94",
+      ...>    bank_code: "CBJO",
+      ...>    branch_code: "0010",
+      ...>    national_check: nil,
+      ...>    account_number: "000000000131000302"
+      ...>  }
+      ...>  |> IbanEx.Country.JO.to_string()
+      "JO 94 CBJO 0010 000000000131000302"
+  ```
+  """
+
+  @size 30
+  @rule ~r/^(?<bank_code>[A-Z0-9]{4})(?<branch_code>[0-9]{4})(?<account_number>[A-Z0-9]{18})$/i
+
+  use 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, branch_code, account_number]
+    |> Enum.join(joiner)
+  end
+end

lib/iban_ex/country/kw.ex

@@ -0,0 +1,25 @@
+defmodule IbanEx.Country.KW do
+  @moduledoc """
+  Kuwait IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "KW",
+      ...>    check_digits: "81",
+      ...>    bank_code: "CBKU",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "0000000000001234560101"
+      ...>  }
+      ...>  |> IbanEx.Country.KW.to_string()
+      "KW 81 CBKU 0000000000001234560101"
+  ```
+  """
+
+  @size 30
+  @rule ~r/^(?<bank_code>[A-Z0-9]{4})(?<account_number>[0-9]{22})$/i
+
+  use IbanEx.Country.Template
+end

lib/iban_ex/country/kz.ex

@@ -0,0 +1,25 @@
+defmodule IbanEx.Country.KZ do
+  @moduledoc """
+  Kazakhstan IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "KZ",
+      ...>    check_digits: "86",
+      ...>    bank_code: "125",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "KZT5004100100"
+      ...>  }
+      ...>  |> IbanEx.Country.KZ.to_string()
+      "KZ 86 125 KZT5004100100"
+  ```
+  """
+
+  @size 20
+  @rule ~r/^(?<bank_code>[0-9]{3})(?<account_number>[A-Z0-9]{13})$/i
+
+  use IbanEx.Country.Template
+end

lib/iban_ex/country/lb.ex

@@ -0,0 +1,25 @@
+defmodule IbanEx.Country.LB do
+  @moduledoc """
+  Lebanon IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "LB",
+      ...>    check_digits: "62",
+      ...>    bank_code: "0999",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "00000001001901229114"
+      ...>  }
+      ...>  |> IbanEx.Country.LB.to_string()
+      "LB 62 0999 00000001001901229114"
+  ```
+  """
+
+  @size 28
+  @rule ~r/^(?<bank_code>[0-9]{4})(?<account_number>[0-9]{20})$/i
+
+  use IbanEx.Country.Template
+end

lib/iban_ex/country/li.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.LI do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "LI", check_digits: "21", bank_code: "08810", branch_code: nil, national_check: nil, account_number: "0002324013AA"}
+  ```elixir
-    iex> |> IbanEx.Country.LI.to_string()
+      iex>  %IbanEx.Iban{
-    "LI 21 08810 0002324013AA"
+      ...>    country_code: "LI",
-
+      ...>    check_digits: "21",
+      ...>    bank_code: "08810",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "0002324013AA"
+      ...>  }
+      ...>  |> IbanEx.Country.LI.to_string()
+      "LI 21 08810 0002324013AA"
+  ```
   """
 
   @size 21

lib/iban_ex/country/lt.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.LT do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "LT", check_digits: "12", bank_code: "10000", branch_code: nil, national_check: nil, account_number: "11101001000"}
+  ```elixir
-    iex> |> IbanEx.Country.LT.to_string()
+      iex>  %IbanEx.Iban{
-    "LT 12 10000 11101001000"
+      ...>    country_code: "LT",
-
+      ...>    check_digits: "12",
+      ...>    bank_code: "10000",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "11101001000"
+      ...>  }
+      ...>  |> IbanEx.Country.LT.to_string()
+      "LT 12 10000 11101001000"
+  ```
   """
 
   @size 20

lib/iban_ex/country/lu.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.LU do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "LU", check_digits: "28", bank_code: "001", branch_code: nil, national_check: nil, account_number: "9400644750000"}
+  ```elixir
-    iex> |> IbanEx.Country.LU.to_string()
+      iex>  %IbanEx.Iban{
-    "LU 28 001 9400644750000"
+      ...>    country_code: "LU",
-
+      ...>    check_digits: "28",
+      ...>    bank_code: "001",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "9400644750000"
+      ...>  }
+      ...>  |> IbanEx.Country.LU.to_string()
+      "LU 28 001 9400644750000"
+  ```
   """
 
   @size 20

lib/iban_ex/country/lv.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.LV do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "LV", check_digits: "80", bank_code: "BANK", branch_code: nil, national_check: nil, account_number: "0000435195001"}
+  ```elixir
-    iex> |> IbanEx.Country.LV.to_string()
+      iex>  %IbanEx.Iban{
-    "LV 80 BANK 0000435195001"
+      ...>    country_code: "LV",
-
+      ...>    check_digits: "80",
+      ...>    bank_code: "BANK",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "0000435195001"
+      ...>  }
+      ...>  |> IbanEx.Country.LV.to_string()
+      "LV 80 BANK 0000435195001"
+  ```
   """
 
   @size 21

lib/iban_ex/country/mc.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.MC do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "MC", check_digits: "58", bank_code: "11222", branch_code: "00001", national_check: "30", account_number: "01234567890"}
+  ```elixir
-    iex> |> IbanEx.Country.MC.to_string()
+      iex>  %IbanEx.Iban{
-    "MC 58 11222 00001 01234567890 30"
+      ...>    country_code: "MC",
-
+      ...>    check_digits: "58",
+      ...>    bank_code: "11222",
+      ...>    branch_code: "00001",
+      ...>    national_check: "30",
+      ...>    account_number: "01234567890"
+      ...>  }
+      ...>  |> IbanEx.Country.MC.to_string()
+      "MC 58 11222 00001 01234567890 30"
+  ```
   """
 
   @size 27

lib/iban_ex/country/md.ex

@@ -0,0 +1,25 @@
+defmodule IbanEx.Country.MD do
+  @moduledoc """
+  Republic of Moldova IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "MD",
+      ...>    check_digits: "24",
+      ...>    bank_code: "AG",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "000225100013104168"
+      ...>  }
+      ...>  |> IbanEx.Country.MD.to_string()
+      "MD 24 AG 000225100013104168"
+  ```
+  """
+
+  @size 24
+  @rule ~r/^(?<bank_code>[A-Z]{2})(?<account_number>[0-9]{18})$/i
+
+  use IbanEx.Country.Template
+end

lib/iban_ex/country/me.ex

@@ -0,0 +1,43 @@
+defmodule IbanEx.Country.ME do
+  @moduledoc """
+  Montenegro IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "ME",
+      ...>    check_digits: "25",
+      ...>    bank_code: "505",
+      ...>    branch_code: nil,
+      ...>    national_check: "51",
+      ...>    account_number: "0000123456789"
+      ...>  }
+      ...>  |> IbanEx.Country.ME.to_string()
+      "ME 25 505 0000123456789 51"
+  ```
+  """
+
+  @size 22
+  @rule ~r/^(?<bank_code>[0-9]{3})(?<account_number>[0-9]{13})(?<national_check>[0-9]{2})$/i
+
+  use 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, national_check]
+    |> Enum.join(joiner)
+  end
+end

lib/iban_ex/country/mk.ex

@@ -0,0 +1,43 @@
+defmodule IbanEx.Country.MK do
+  @moduledoc """
+  Macedonia IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "MK",
+      ...>    check_digits: "07",
+      ...>    bank_code: "250",
+      ...>    branch_code: nil,
+      ...>    national_check: "84",
+      ...>    account_number: "1200000589"
+      ...>  }
+      ...>  |> IbanEx.Country.MK.to_string()
+      "MK 07 250 1200000589 84"
+  ```
+  """
+
+  @size 19
+  @rule ~r/^(?<bank_code>[0-9]{3})(?<account_number>[0-9]{10})(?<national_check>[0-9]{2})$/i
+
+  use 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, national_check]
+    |> Enum.join(joiner)
+  end
+end

lib/iban_ex/country/mr.ex

@@ -0,0 +1,43 @@
+defmodule IbanEx.Country.MR do
+  @moduledoc """
+  Mauritania IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "MR",
+      ...>    check_digits: "13",
+      ...>    bank_code: "00020",
+      ...>    branch_code: "00101",
+      ...>    national_check: "53",
+      ...>    account_number: "00001234567"
+      ...>  }
+      ...>  |> IbanEx.Country.MR.to_string()
+      "MR 13 00020 00101 00001234567 53"
+  ```
+  """
+
+  @size 27
+  @rule ~r/^(?<bank_code>[0-9]{5})(?<branch_code>[0-9]{5})(?<account_number>[0-9]{11})(?<national_check>[0-9]{2})$/i
+
+  use 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, branch_code, account_number, national_check]
+    |> Enum.join(joiner)
+  end
+end

lib/iban_ex/country/mt.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.MT do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "MT", check_digits: "84", bank_code: "MALT", branch_code: "01100", national_check: nil, account_number: "0012345MTLCAST001S"}
+  ```elixir
-    iex> |> IbanEx.Country.MT.to_string()
+      iex>  %IbanEx.Iban{
-    "MT 84 MALT 01100 0012345MTLCAST001S"
+      ...>    country_code: "MT",
-
+      ...>    check_digits: "84",
+      ...>    bank_code: "MALT",
+      ...>    branch_code: "01100",
+      ...>    national_check: nil,
+      ...>    account_number: "0012345MTLCAST001S"
+      ...>  }
+      ...>  |> IbanEx.Country.MT.to_string()
+      "MT 84 MALT 01100 0012345MTLCAST001S"
+  ```
   """
 
   @size 31

lib/iban_ex/country/nl.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.NL do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "NL", check_digits: "91", bank_code: "ABNA", branch_code: nil, national_check: nil, account_number: "0417164300"}
+  ```elixir
-    iex> |> IbanEx.Country.NL.to_string()
+      iex>  %IbanEx.Iban{
-    "NL 91 ABNA 0417164300"
+      ...>    country_code: "NL",
-
+      ...>    check_digits: "91",
+      ...>    bank_code: "ABNA",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "0417164300"
+      ...>  }
+      ...>  |> IbanEx.Country.NL.to_string()
+      "NL 91 ABNA 0417164300"
+  ```
   """
 
   @size 18

lib/iban_ex/country/no.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.NO do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "NO", check_digits: "93", bank_code: "8601", branch_code: nil, national_check: "7", account_number: "111794"}
+  ```elixir
-    iex> |> IbanEx.Country.NO.to_string()
+      iex>  %IbanEx.Iban{
-    "NO 93 8601 111794 7"
+      ...>    country_code: "NO",
-
+      ...>    check_digits: "93",
+      ...>    bank_code: "8601",
+      ...>    branch_code: nil,
+      ...>    national_check: "7",
+      ...>    account_number: "111794"
+      ...>  }
+      ...>  |> IbanEx.Country.NO.to_string()
+      "NO 93 8601 111794 7"
+  ```
   """
 
   @size 15

lib/iban_ex/country/pk.ex

@@ -0,0 +1,25 @@
+defmodule IbanEx.Country.PK do
+  @moduledoc """
+  Pakistan IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "PK",
+      ...>    check_digits: "36",
+      ...>    bank_code: "SCBL",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "0000001123456702"
+      ...>  }
+      ...>  |> IbanEx.Country.PK.to_string()
+      "PK 36 SCBL 0000001123456702"
+  ```
+  """
+
+  @size 24
+  @rule ~r/^(?<bank_code>[A-Z]{4})(?<account_number>[0-9]{16})$/i
+
+  use IbanEx.Country.Template
+end

lib/iban_ex/country/pl.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.PL do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "PL", check_digits: "61", bank_code: "109", branch_code: "0101", national_check: "4", account_number: "0000071219812874"}
+  ```elixir
-    iex> |> IbanEx.Country.PL.to_string()
+      iex>  %IbanEx.Iban{
-    "PL 61 109 0101 4 0000071219812874"
+      ...>    country_code: "PL",
-
+      ...>    check_digits: "61",
+      ...>    bank_code: "109",
+      ...>    branch_code: "0101",
+      ...>    national_check: "4",
+      ...>    account_number: "0000071219812874"
+      ...>  }
+      ...>  |> IbanEx.Country.PL.to_string()
+      "PL 61 109 0101 4 0000071219812874"
+  ```
   """
 
   @size 28

lib/iban_ex/country/pt.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.PT do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "PT", check_digits: "50", bank_code: "0002", branch_code: "0123", national_check: "54", account_number: "12345678901"}
+  ```elixir
-    iex> |> IbanEx.Country.PT.to_string()
+      iex>  %IbanEx.Iban{
-    "PT 50 0002 0123 12345678901 54"
+      ...>    country_code: "PT",
-
+      ...>    check_digits: "50",
+      ...>    bank_code: "0002",
+      ...>    branch_code: "0123",
+      ...>    national_check: "54",
+      ...>    account_number: "12345678901"
+      ...>  }
+      ...>  |> IbanEx.Country.PT.to_string()
+      "PT 50 0002 0123 12345678901 54"
+  ```
   """
 
   @size 25

lib/iban_ex/country/qa.ex

@@ -0,0 +1,25 @@
+defmodule IbanEx.Country.QA do
+  @moduledoc """
+  Qatar IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "QA",
+      ...>    check_digits: "58",
+      ...>    bank_code: "DOHB",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "00001234567890ABCDEFG"
+      ...>  }
+      ...>  |> IbanEx.Country.QA.to_string()
+      "QA 58 DOHB 00001234567890ABCDEFG"
+  ```
+  """
+
+  @size 29
+  @rule ~r/^(?<bank_code>[A-Z]{4})(?<account_number>[A-Z0-9]{21})$/i
+
+  use IbanEx.Country.Template
+end

lib/iban_ex/country/ro.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.RO do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "RO", check_digits: "49", bank_code: "AAAA", branch_code: nil, national_check: nil, account_number: "1B31007593840000"}
+  ```elixir
-    iex> |> IbanEx.Country.RO.to_string()
+      iex>  %IbanEx.Iban{
-    "RO 49 AAAA 1B31007593840000"
+      ...>    country_code: "RO",
-
+      ...>    check_digits: "49",
+      ...>    bank_code: "AAAA",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "1B31007593840000"
+      ...>  }
+      ...>  |> IbanEx.Country.RO.to_string()
+      "RO 49 AAAA 1B31007593840000"
+  ```
   """
 
   @size 24

lib/iban_ex/country/rs.ex

@@ -0,0 +1,43 @@
+defmodule IbanEx.Country.RS do
+  @moduledoc """
+  Serbia IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "RS",
+      ...>    check_digits: "35",
+      ...>    bank_code: "260",
+      ...>    branch_code: nil,
+      ...>    national_check: "79",
+      ...>    account_number: "0056010016113"
+      ...>  }
+      ...>  |> IbanEx.Country.RS.to_string()
+      "RS 35 260 0056010016113 79"
+  ```
+  """
+
+  @size 22
+  @rule ~r/^(?<bank_code>[0-9]{3})(?<account_number>[0-9]{13})(?<national_check>[0-9]{2})$/i
+
+  use 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, national_check]
+    |> Enum.join(joiner)
+  end
+end

lib/iban_ex/country/sa.ex

@@ -0,0 +1,25 @@
+defmodule IbanEx.Country.SA do
+  @moduledoc """
+  Saudi Arabia IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "SA",
+      ...>    check_digits: "03",
+      ...>    bank_code: "80",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "000000608010167519"
+      ...>  }
+      ...>  |> IbanEx.Country.SA.to_string()
+      "SA 03 80 000000608010167519"
+  ```
+  """
+
+  @size 24
+  @rule ~r/^(?<bank_code>[0-9]{2})(?<account_number>[0-9]{18})$/i
+
+  use IbanEx.Country.Template
+end

lib/iban_ex/country/se.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.SE do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "SE", check_digits: "45", bank_code: "500", branch_code: nil, national_check: nil, account_number: "00000058398257466"}
+  ```elixir
-    iex> |> IbanEx.Country.SE.to_string()
+      iex>  %IbanEx.Iban{
-    "SE 45 500 00000058398257466"
+      ...>    country_code: "SE",
-
+      ...>    check_digits: "45",
+      ...>    bank_code: "500",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "00000058398257466"
+      ...>  }
+      ...>  |> IbanEx.Country.SE.to_string()
+      "SE 45 500 00000058398257466"
+  ```
   """
 
   @size 24

lib/iban_ex/country/si.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.SI do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "SI", check_digits: "56", bank_code: "26", branch_code: "330", national_check: "86", account_number: "00120390"}
+  ```elixir
-    iex> |> IbanEx.Country.SI.to_string()
+      iex>  %IbanEx.Iban{
-    "SI 56 26 330 00120390 86"
+      ...>    country_code: "SI",
-
+      ...>    check_digits: "56",
+      ...>    bank_code: "26",
+      ...>    branch_code: "330",
+      ...>    national_check: "86",
+      ...>    account_number: "00120390"
+      ...>  }
+      ...>  |> IbanEx.Country.SI.to_string()
+      "SI 56 26 330 00120390 86"
+  ```
   """
 
   @size 19

lib/iban_ex/country/sk.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.SK do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "SK", check_digits: "31", bank_code: "1200", branch_code: nil, national_check: nil, account_number: "0000198742637541"}
+  ```elixir
-    iex> |> IbanEx.Country.SK.to_string()
+      iex>  %IbanEx.Iban{
-    "SK 31 1200 0000198742637541"
+      ...>    country_code: "SK",
-
+      ...>    check_digits: "31",
+      ...>    bank_code: "1200",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "0000198742637541"
+      ...>  }
+      ...>  |> IbanEx.Country.SK.to_string()
+      "SK 31 1200 0000198742637541"
+  ```
   """
 
   @size 24

lib/iban_ex/country/sm.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.SM do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "SM", check_digits: "86", bank_code: "03225", branch_code: "09800", national_check: "U", account_number: "000000270100"}
+  ```elixir
-    iex> |> IbanEx.Country.SM.to_string()
+      iex>  %IbanEx.Iban{
-    "SM 86 U 03225 09800 000000270100"
+      ...>    country_code: "SM",
-
+      ...>    check_digits: "86",
+      ...>    bank_code: "03225",
+      ...>    branch_code: "09800",
+      ...>    national_check: "U",
+      ...>    account_number: "000000270100"
+      ...>  }
+      ...>  |> IbanEx.Country.SM.to_string()
+      "SM 86 U 03225 09800 000000270100"
+  ```
   """
 
   @size 27

lib/iban_ex/country/sv.ex

@@ -0,0 +1,25 @@
+defmodule IbanEx.Country.SV do
+  @moduledoc """
+  El Salvador IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "SV",
+      ...>    check_digits: "62",
+      ...>    bank_code: "CENR",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "00000000000000700025"
+      ...>  }
+      ...>  |> IbanEx.Country.SV.to_string()
+      "SV 62 CENR 00000000000000700025"
+  ```
+  """
+
+  @size 28
+  @rule ~r/^(?<bank_code>[A-Z0-9]{4})(?<account_number>[0-9]{20})$/i
+
+  use IbanEx.Country.Template
+end

lib/iban_ex/country/template.ex

@@ -9,6 +9,10 @@ defmodule IbanEx.Country.Template do
 
   @callback size() :: size()
   @callback rule() :: rule()
+  @callback rules() :: []
+  @callback rules_map() :: %{}
+  @callback bban_fields() :: [atom()]
+  @callback bban_size() :: non_neg_integer()
   @callback to_string(Iban.t(), joiner()) :: String.t()
   @callback to_string(Iban.t()) :: String.t()
 
@@ -36,13 +40,59 @@ def to_string(
       end
 
       @impl IbanEx.Country.Template
-      @spec size() :: Integer.t()
+      @spec size() :: integer()
       def size(), do: @size
 
+      @doc """
+      Return Regex for parsing complete BBAN (part of IBAN string)
+      """
       @impl IbanEx.Country.Template
       @spec rule() :: Regex.t()
       def rule(), do: @rule
 
+      @impl IbanEx.Country.Template
+      @spec bban_size() :: integer()
+      def bban_size() do
+        {_rules, bban_size} = calculate_rules()
+        bban_size
+      end
+
+      @impl IbanEx.Country.Template
+      @spec bban_fields() :: []
+      def bban_fields(), do: rules_map() |> Map.keys()
+
+      @impl IbanEx.Country.Template
+      @spec rules_map() :: %{}
+      def rules_map(), do: rules() |> Map.new()
+
+      @impl IbanEx.Country.Template
+      @spec rules() :: []
+      def rules() do
+        {rules, _bban_size} = calculate_rules()
+        rules
+      end
+
+      defp calculate_rules() do
+        scanner = ~r/\(\?\<([\w_]+)\>(([^{]+)\{(\d+)\})\)/i
+
+        source =
+          @rule
+          |> Regex.source()
+
+        {list, bban_length} =
+          Regex.scan(scanner, source)
+          |> Enum.reduce({[], 0}, fn [_part, k, r, _syms, l], {list, position} = acc ->
+            key = String.to_atom(k)
+            {:ok, regex} = Regex.compile(r, "i")
+            length = String.to_integer(l)
+            left = position
+            right = left + length - 1
+            {[{key, %{regex: regex, range: left..right}} | list], right + 1}
+          end)
+
+        {Enum.reverse(list), bban_length}
+      end
+
       defoverridable to_string: 1, to_string: 2, size: 0, rule: 0
     end
   end

lib/iban_ex/country/tl.ex

@@ -0,0 +1,43 @@
+defmodule IbanEx.Country.TL do
+  @moduledoc """
+  Timor-Leste IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "TL",
+      ...>    check_digits: "38",
+      ...>    bank_code: "008",
+      ...>    branch_code: nil,
+      ...>    national_check: "57",
+      ...>    account_number: "00123456789101"
+      ...>  }
+      ...>  |> IbanEx.Country.TL.to_string()
+      "TL 38 008 00123456789101 57"
+  ```
+  """
+
+  @size 23
+  @rule ~r/^(?<bank_code>[0-9]{3})(?<account_number>[0-9]{14})(?<national_check>[0-9]{2})$/i
+
+  use 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, national_check]
+    |> Enum.join(joiner)
+  end
+end

lib/iban_ex/country/tr.ex

@@ -0,0 +1,43 @@
+defmodule IbanEx.Country.TR do
+  @moduledoc """
+  Turkey IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "TR",
+      ...>    check_digits: "33",
+      ...>    bank_code: "00061",
+      ...>    branch_code: nil,
+      ...>    national_check: "0",
+      ...>    account_number: "0519786457841326"
+      ...>  }
+      ...>  |> IbanEx.Country.TR.to_string()
+      "TR 33 00061 0 0519786457841326"
+  ```
+  """
+
+  @size 26
+  @rule ~r/^(?<bank_code>[A-Z0-9]{5})(?<national_check>[0-9]{1})(?<account_number>[0-9]{16})$/i
+
+  use 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, national_check, account_number]
+    |> Enum.join(joiner)
+  end
+end

lib/iban_ex/country/ua.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.UA do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "UA", check_digits: "21", bank_code: "322313", branch_code: nil, national_check: nil, account_number: "0000026007233566001"}
+  ```elixir
-    iex> |> IbanEx.Country.UA.to_string()
+      iex>  %IbanEx.Iban{
-    "UA 21 322313 0000026007233566001"
+      ...>    country_code: "UA",
-
+      ...>    check_digits: "21",
+      ...>    bank_code: "322313",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "0000026007233566001"
+      ...>  }
+      ...>  |> IbanEx.Country.UA.to_string()
+      "UA 21 322313 0000026007233566001"
+  ```
   """
 
   @size 29

lib/iban_ex/country/va.ex

@@ -4,10 +4,18 @@ defmodule IbanEx.Country.VA do
 
   ## Examples
 
-    iex> %IbanEx.Iban{country_code: "VA", check_digits: "59", bank_code: "001", branch_code: nil, national_check: nil, account_number: "123000012345678"}
+  ```elixir
-    iex> |> IbanEx.Country.VA.to_string()
+      iex>  %IbanEx.Iban{
-    "VA 59 001 123000012345678"
+      ...>    country_code: "VA",
-
+      ...>    check_digits: "59",
+      ...>    bank_code: "001",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "123000012345678"
+      ...>  }
+      ...>  |> IbanEx.Country.VA.to_string()
+      "VA 59 001 123000012345678"
+  ```
   """
 
   @size 22

lib/iban_ex/country/vg.ex

@@ -0,0 +1,25 @@
+defmodule IbanEx.Country.VG do
+  @moduledoc """
+  British Virgin Islands IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "VG",
+      ...>    check_digits: "96",
+      ...>    bank_code: "VPVG",
+      ...>    branch_code: nil,
+      ...>    national_check: nil,
+      ...>    account_number: "0000012345678901"
+      ...>  }
+      ...>  |> IbanEx.Country.VG.to_string()
+      "VG 96 VPVG 0000012345678901"
+  ```
+  """
+
+  @size 24
+  @rule ~r/^(?<bank_code>[A-Z]{4})(?<account_number>[0-9]{16})$/i
+
+  use IbanEx.Country.Template
+end

lib/iban_ex/country/xk.ex

@@ -0,0 +1,43 @@
+defmodule IbanEx.Country.XK do
+  @moduledoc """
+  Kosovo IBAN parsing rules
+
+  ## Examples
+
+  ```elixir
+      iex>  %IbanEx.Iban{
+      ...>    country_code: "XK",
+      ...>    check_digits: "05",
+      ...>    bank_code: "12",
+      ...>    branch_code: "12",
+      ...>    national_check: "06",
+      ...>    account_number: "0123456789"
+      ...>  }
+      ...>  |> IbanEx.Country.XK.to_string()
+      "XK 05 12 12 0123456789 06"
+  ```
+  """
+
+  @size 20
+  @rule ~r/^(?<bank_code>[0-9]{2})(?<branch_code>[0-9]{2})(?<account_number>[0-9]{10})(?<national_check>[0-9]{2})$/i
+
+  use 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, branch_code, account_number, national_check]
+    |> Enum.join(joiner)
+  end
+end

lib/iban_ex/deserialize.ex

@@ -1,14 +1,27 @@
 defprotocol IbanEx.Deserialize do
-  @type iban_or_error() :: IbanEx.Iban.t() | {:error, :can_not_parse_map | atom()}
+  @type iban() :: IbanEx.Iban.t()
+  @type iban_or_error() ::
+          iban()
+          | {:invalid_checksum, binary()}
+          | {:invalid_format, binary()}
+          | {:invalid_length, binary()}
+          | {:can_not_parse_map, binary()}
+          | {:unsupported_country_code, binary()}
+
   @spec to_iban(t()) :: iban_or_error()
   def to_iban(value)
 end
 
 defimpl IbanEx.Deserialize, for: [BitString, String] do
   alias IbanEx.{Parser, Error}
-  @type iban_or_error() :: IbanEx.Iban.t() | {:error, atom()}
+  @type iban() :: IbanEx.Iban.t()
-  @spec to_iban(binary()) :: iban_or_error()
+  @type iban_or_error() ::
-  @spec to_iban(String.t()) :: iban_or_error()
+          iban()
+          | {:invalid_checksum, binary()}
+          | {:invalid_format, binary()}
+          | {:invalid_length, binary()}
+          | {:can_not_parse_map, binary()}
+          | {:unsupported_country_code, binary()}
   def to_iban(string) do
     case Parser.parse(string) do
       {:ok, iban} -> iban
@@ -18,10 +31,17 @@ def to_iban(string) do
 end
 
 defimpl IbanEx.Deserialize, for: Map do
-  alias IbanEx.Iban
+  alias IbanEx.{Iban, Error}
-  @type iban_or_error() :: IbanEx.Iban.t() | {:error, :can_not_parse_map}
+
+  @type iban() :: IbanEx.Iban.t()
+  @type iban_or_error() ::
+          iban()
+          | {:invalid_checksum, binary()}
+          | {:invalid_format, binary()}
+          | {:invalid_length, binary()}
+          | {:can_not_parse_map, binary()}
+          | {:unsupported_country_code, binary()}
 
-  @spec to_iban(map()) :: iban_or_error()
   def to_iban(
         %{
           country_code: _country_code,
@@ -49,13 +69,10 @@ def to_iban(
     to_iban(atomized_map)
   end
 
-  def to_iban(map) when is_map(map), do: {:error, :can_not_parse_map}
+  def to_iban(map) when is_map(map), do: {:can_not_parse_map, Error.message(:can_not_parse_map)}
 end
 
 defimpl IbanEx.Deserialize, for: List do
   alias IbanEx.Iban
-  @type iban_or_error() :: IbanEx.Iban.t() | {:error, :can_not_parse_map}
-
-  @spec to_iban(list()) :: iban_or_error()
   def to_iban(list), do: struct(Iban, Map.new(list))
 end

lib/iban_ex/error.ex

@@ -9,6 +9,10 @@ defmodule IbanEx.Error do
           | :can_not_parse_map
           | :length_to_long
           | :length_to_short
+          | :invalid_bank_code
+          | :invalid_account_number
+          | :invalid_branch_code
+          | :invalid_national_check
           | atom()
   @type errors() :: [error()]
   @errors [
@@ -18,7 +22,11 @@ defmodule IbanEx.Error do
     :invalid_checksum,
     :can_not_parse_map,
     :length_to_long,
-    :length_to_short
+    :length_to_short,
+    :invalid_bank_code,
+    :invalid_account_number,
+    :invalid_branch_code,
+    :invalid_national_check
 ]
 
   @messages [
@@ -28,8 +36,12 @@ defmodule IbanEx.Error do
     invalid_checksum: "IBAN's checksum is invalid",
     can_not_parse_map: "Can't parse map to IBAN struct",
     length_to_long: "IBAN longer then required length",
-    length_to_short: "IBAN shorter then required length"
+    length_to_short: "IBAN shorter then required length",
-  ]
+    invalid_bank_code: "Bank code violates required format",
+    invalid_account_number: "Account number violates required format",
+    invalid_branch_code: "Branch code violates required format",
+    invalid_national_check: "National check symbols violates required format",
+]
 
   @spec message(error()) :: String.t()
   def message(error) when error in @errors, do: @messages[error]

lib/iban_ex/parser.ex

@@ -7,12 +7,22 @@ defmodule IbanEx.Parser do
   @type iban_string() :: String.t()
   @type country_code_string() :: <<_::16>>
   @type check_digits_string() :: <<_::16>>
-  @type iban_or_error() :: IbanEx.Iban.t() | {:error, atom()}
 
-  @spec parse({:ok, String.t()} | String.t()) :: iban_or_error()
+  @type iban() :: IbanEx.Iban.t()
+  @type iban_or_error() ::
+          {:ok, iban()}
+          | {:invalid_checksum, binary()}
+          | {:invalid_format, binary()}
+          | {:invalid_length, binary()}
+          | {:can_not_parse_map, binary()}
+          | {:unsupported_country_code, binary()}
+
+  @spec parse({:ok, binary()}) :: iban_or_error()
   def parse({:ok, iban_string}), do: parse(iban_string)
 
-  def parse(iban_string) do
+  def parse(iban_string, options \\ [incomplete: false])
+
+  def parse(iban_string, incomplete: false) do
     case Validator.validate(iban_string) do
       {:ok, valid_iban} ->
         iban_map = %{
@@ -32,12 +42,69 @@ def parse(iban_string) do
     end
   end
 
+  def parse(iban_string, incomplete: true) do
+    iban_map = %{
+      country_code: country_code(iban_string),
+      check_digits: check_digits(iban_string)
+    }
+
+    bban = bban(iban_string)
+
+    case Country.is_country_code_supported?(iban_map.country_code) do
+      true ->
+        result =
+          parse_bban(bban, iban_map.country_code, incomplete: true)
+          |> Map.merge(iban_map)
+
+        {:ok, struct(Iban, result)}
+
+      false ->
+        {:error, :unsupported_country_code}
+    end
+  end
+
   @spec parse_bban(binary(), <<_::16>>) :: map()
-  def parse_bban(bban_string, country_code) do
+  def parse_bban(bban_string, country_code, options \\ [incomplete: false])
-    regex = Country.country_module(country_code).rule()
+
-    for {key, val} <- Regex.named_captures(regex, bban_string),
+  def parse_bban(bban_string, country_code, incomplete: true) do
+    case Country.is_country_code_supported?(country_code) do
+      true ->
+        country_code
+        |> Country.country_module()
+        |> parse_bban_by_country_rules(bban_string)
+      false ->
+        %{}
+    end
+  end
+
+  def parse_bban(bban_string, country_code, incomplete: false) do
+    case Country.is_country_code_supported?(country_code) do
+      true ->
+        Country.country_module(country_code).rule()
+        |> parse_bban_by_regex(bban_string)
+      false ->
+        %{}
+    end
+  end
+
+  defp parse_bban_by_country_rules(country_module, bban_string) do
+    for {field, rule} <- country_module.rules,
         into: %{},
-        do: {String.to_atom(key), val}
+        do: {field, normalize_and_slice(bban_string, rule.range)}
+  end
+
+  defp parse_bban_by_regex(_regex, nil), do: %{}
+
+  defp parse_bban_by_regex(regex, bban_string) do
+    case Regex.named_captures(regex, bban_string) do
+      map when is_map(map) ->
+        for {key, val} <- map,
+            into: %{},
+            do: {String.to_atom(key), val}
+
+      nil ->
+        %{}
+    end
   end
 
   @spec country_code(iban_string()) :: country_code_string()

lib/iban_ex/serialize.ex

@@ -6,6 +6,6 @@ defmodule IbanEx.Serialize do
   @spec to_string(Iban.t()) :: String.t()
   def to_string(iban), do: Formatter.format(iban)
 
-  @spec to_map(Iban.t()) :: Map.t()
+  @spec to_map(Iban.t()) :: map()
   def to_map(iban), do: Map.from_struct(iban)
 end

lib/iban_ex/validator/validator.ex

@@ -3,10 +3,11 @@ defmodule IbanEx.Validator do
 
   alias IbanEx.{Country, Parser}
   alias IbanEx.Validator.Replacements
-  import IbanEx.Commons, only: [normalize: 1]
+  import IbanEx.Commons, only: [normalize: 1, normalize_and_slice: 2]
 
   defp error_accumulator(acc, error_message)
   defp error_accumulator(acc, {:error, error}), do: [error | acc]
+  # defp error_accumulator(acc, list) when is_list(list), do: list ++ acc
   defp error_accumulator(acc, _), do: acc
 
   defp violation_functions(),
@@ -14,13 +15,26 @@ defp violation_functions(),
       {&__MODULE__.iban_violates_format?/1, {:error, :invalid_format}},
       {&__MODULE__.iban_unsupported_country?/1, {:error, :unsupported_country_code}},
       {&__MODULE__.iban_violates_length?/1, {:error, :invalid_length}},
-      {&__MODULE__.iban_violates_country_rule?/1, {:error, :invalid_format}},
+      {&__MODULE__.iban_violates_country_rule?/1, {:error, :invalid_format_for_country}},
-      {&__MODULE__.iban_violates_checksum?/1, {:error, :invalid_checksum}}
+      {&__MODULE__.iban_violates_bank_code_format?/1, {:error, :invalid_bank_code}},
+      {&__MODULE__.iban_violates_account_number_format?/1, {:error, :invalid_account_number}},
+      {&__MODULE__.iban_violates_branch_code_format?/1, {:error, :invalid_branch_code}},
+      {&__MODULE__.iban_violates_national_check_format?/1, {:error, :invalid_national_check}},
+      {&__MODULE__.iban_violates_checksum?/1, {:error, :invalid_checksum}},
     ]
 
   @doc """
   Accumulate check results in the list of errors
-  Check iban_violates_format?, iban_unsupported_country?, iban_violates_length?, iban_violates_country_rule?, iban_violates_checksum?
+  Check
+    iban_violates_format?,
+    iban_unsupported_country?,
+    iban_violates_length?,
+    iban_violates_country_rule?,
+    iban_violates_bank_code_format?,
+    iban_violates_account_number_format?
+    iban_violates_branch_code_format?,
+    iban_violates_national_check_format?,
+    iban_violates_checksum?,
   """
   @spec violations(String.t()) :: [] | [atom()]
   def violations(iban) do
@@ -36,16 +50,35 @@ def violations(iban) do
     iban_unsupported_country?,
     iban_violates_length?,
     iban_violates_country_rule?,
-    iban_violates_checksum?
+    iban_violates_bank_code_format?,
-
+    iban_violates_account_number_format?,
+    iban_violates_branch_code_format?,
+    iban_violates_national_check_format?,
+    iban_violates_checksum?,
   """
-  @spec validate(String.t()) :: {:ok, String.t()} | {:error, Atom.t()}
+  @type iban() :: binary()
+  @type iban_or_error() ::
+          {:ok, iban()}
+          | {:invalid_checksum, binary()}
+          | {:invalid_format, binary()}
+          | {:invalid_length, binary()}
+          | {:unsupported_country_code, binary()}
+          | {:invalid_bank_code, binary()}
+          | {:invalid_account_number, binary()}
+          | {:invalid_branch_code, binary()}
+          | {:invalid_national_check, binary()}
+  @spec validate(String.t()) :: {:ok, String.t()} | {:error, atom()}
+
   def validate(iban) do
     cond do
       iban_violates_format?(iban) -> {:error, :invalid_format}
       iban_unsupported_country?(iban) -> {:error, :unsupported_country_code}
       iban_violates_length?(iban) -> {:error, :invalid_length}
-      iban_violates_country_rule?(iban) -> {:error, :invalid_format}
+      iban_violates_country_rule?(iban) -> {:error, :invalid_format_for_country}
+      iban_violates_bank_code_format?(iban) -> {:error, :invalid_bank_code}
+      iban_violates_account_number_format?(iban) -> {:error, :invalid_account_number}
+      iban_violates_branch_code_format?(iban) -> {:error, :invalid_branch_code}
+      iban_violates_national_check_format?(iban) -> {:error, :invalid_national_check}
       iban_violates_checksum?(iban) -> {:error, :invalid_checksum}
       true -> {:ok, normalize(iban)}
     end
@@ -63,6 +96,34 @@ defp size(iban) do
   def iban_violates_format?(iban),
     do: Regex.match?(~r/[^A-Z0-9]/i, normalize(iban))
 
+  # - Check whether a given IBAN violates the required format in bank_code.
+  @spec iban_violates_bank_code_format?(binary()) :: boolean
+  def iban_violates_bank_code_format?(iban), do: iban_violates_bban_part_format?(iban, :bank_code)
+
+  # - Check whether a given IBAN violates the required format in branch_code.
+  @spec iban_violates_branch_code_format?(binary()) :: boolean
+  def iban_violates_branch_code_format?(iban), do: iban_violates_bban_part_format?(iban, :branch_code)
+
+  # - Check whether a given IBAN violates the required format in account_number.
+  @spec iban_violates_account_number_format?(binary()) :: boolean
+  def iban_violates_account_number_format?(iban), do: iban_violates_bban_part_format?(iban, :account_number)
+
+  # - Check whether a given IBAN violates the required format in national_check.
+  @spec iban_violates_national_check_format?(binary()) :: boolean
+  def iban_violates_national_check_format?(iban), do: iban_violates_bban_part_format?(iban, :national_check)
+
+  defp iban_violates_bban_part_format?(iban, part) do
+    with  country <- Parser.country_code(iban),
+          bban <- Parser.bban(iban),
+          true <- Country.is_country_code_supported?(country),
+          country_module <- Country.country_module(country),
+          {:ok, rule} <- Map.fetch(country_module.rules_map(), part) do
+      !Regex.match?(rule.regex, normalize_and_slice(bban, rule.range))
+    else
+      _ -> false
+    end
+  end
+
   # - Check whether a given IBAN violates the supported countries.
   @spec iban_unsupported_country?(String.t()) :: boolean
   def iban_unsupported_country?(iban) do
@@ -86,21 +147,23 @@ def iban_violates_length?(iban) do
   end
 
   @doc "Check length of IBAN"
-  @spec check_iban_length(String.t()) :: {:error, :length_to_short | :length_to_long } | :ok
+  @spec check_iban_length(String.t()) :: {:error, :length_to_short | :length_to_long} | :ok
   def check_iban_length(iban) do
-    unless iban_unsupported_country?(iban) do
+    case iban_unsupported_country?(iban) do
-      country_module =
+      true ->
-        iban
+        {:error, :unsupported_country_code}
-        |> Parser.country_code()
-        |> Country.country_module()
 
-      case country_module.size() - size(iban) do
+      false ->
-        diff when diff > 0 -> {:error, :length_to_short}
+        country_module =
-        diff when diff < 0 -> {:error, :length_to_long}
+          iban
-        0 -> :ok
+          |> Parser.country_code()
-      end
+          |> Country.country_module()
-    else
+
-      {:error, :unsupported_country_code}
+        case country_module.size() - size(iban) do
+          diff when diff > 0 -> {:error, :length_to_short}
+          diff when diff < 0 -> {:error, :length_to_long}
+          0 -> :ok
+        end
     end
   end
 
@@ -113,7 +176,7 @@ def iban_violates_country_rule?(iban) do
          rule <- country_module.rule() do
       !Regex.match?(rule, bban)
     else
-      {:error, _error} -> true
+      _ -> true
     end
   end
 

mix.exs

@@ -2,7 +2,7 @@ defmodule IbanEx.MixProject do
   use Mix.Project
 
   @source_url "https://g.tulz.dev/opensource/iban-ex"
-  @version "0.1.5"
+  @version "0.1.8"
 
   def project do
     [
@@ -69,10 +69,7 @@ defp deps do
       {:sobelow, ">= 0.0.0", only: ~w(dev test)a, runtime: false},
       {:mix_audit, ">= 0.0.0", only: ~w(dev test)a, runtime: false},
       {:observer_cli, "~> 1.7.4", only: :dev, runtime: false},
-      {:elixir_sense, github: "elixir-lsp/elixir_sense", only: ~w(dev)a}
+      {:elixir_sense, "~> 1.0.0", only: :dev}
-
-      # {:dep_from_hexpm, "~> 0.3.0"},
-      # {:dep_from_git, git: "https://github.com/elixir-lang/my_dep.git", tag: "0.1.0"}
     ]
   end
 end

test/iban_ex_parser_test.exs

@@ -0,0 +1,172 @@
+defmodule IbanExParserTest do
+  alias IbanEx.{Country, Iban, Parser}
+  use ExUnit.Case, async: true
+
+  @ibans [
+    "AL47212110090000000235698741",
+    "AD1200012030200359100100",
+    "AT611904300234573201",
+    "AZ21NABZ00000000137010001944",
+    "BH67BMAG00001299123456",
+    "BE68539007547034",
+    "BA391290079401028494",
+    "BR1800360305000010009795493C1",
+    "BG80BNBG96611020345678",
+    "CR05015202001026284066",
+    "HR1210010051863000160",
+    "CY17002001280000001200527600",
+    "CZ6508000000192000145399",
+    "DK5000400440116243",
+    "DO28BAGR00000001212453611324",
+    "EG380019000500000000263180002",
+    "SV62CENR00000000000000700025",
+    "EE382200221020145685",
+    "FO6264600001631634",
+    "FI2112345600000785",
+    "FR1420041010050500013M02606",
+    "GE29NB0000000101904917",
+    "DE89370400440532013000",
+    "GI75NWBK000000007099453",
+    "GR1601101250000000012300695",
+    "GL8964710001000206",
+    "GT82TRAJ01020000001210029690",
+    "HU42117730161111101800000000",
+    "IS140159260076545510730339",
+    "IE29AIBK93115212345678",
+    "IL620108000000099999999",
+    "IT60X0542811101000000123456",
+    "JO94CBJO0010000000000131000302",
+    "KZ86125KZT5004100100",
+    "XK051212012345678906",
+    "KW81CBKU0000000000001234560101",
+    "LV80BANK0000435195001",
+    "LB62099900000001001901229114",
+    "LI21088100002324013AA",
+    "LT121000011101001000",
+    "LU280019400644750000",
+    "MK07250120000058984",
+    "MT84MALT011000012345MTLCAST001S",
+    "MR1300020001010000123456753",
+    "MC5811222000010123456789030",
+    "ME25505000012345678951",
+    "NL91ABNA0417164300",
+    "NO9386011117947",
+    "PK36SCBL0000001123456702",
+    "PL61109010140000071219812874",
+    "PT50000201231234567890154",
+    "QA58DOHB00001234567890ABCDEFG",
+    "MD24AG000225100013104168",
+    "RO49AAAA1B31007593840000",
+    "SM86U0322509800000000270100",
+    "SA0380000000608010167519",
+    "RS35260005601001611379",
+    "SK3112000000198742637541",
+    "SI56263300012039086",
+    "ES9121000418450200051332",
+    "SE4550000000058398257466",
+    "CH9300762011623852957",
+    "TL380080012345678910157",
+    "TR330006100519786457841326",
+    "UA213223130000026007233566001",
+    "AE070331234567890123456",
+    "GB29NWBK60161331926819",
+    "VA59001123000012345678",
+    "VG96VPVG0000012345678901"
+  ]
+
+  test "parsing valid IBANs from available countries returns {:ok, %IbanEx.Iban{}}" do
+    Enum.all?(@ibans, fn iban ->
+      iban_country =
+        iban
+        |> String.upcase()
+        |> String.slice(0..1)
+
+      result =
+        case {Country.is_country_code_supported?(iban_country), Parser.parse(iban)} do
+          {true, {:ok, %Iban{}}} ->
+            true
+
+          _ ->
+            false
+        end
+
+      assert(result, iban)
+    end)
+  end
+
+  test "parsing invalid IBANs from unavailable countries returns {:error, :unsupported_country_code}" do
+    invalid_ibans =
+      [
+        # Fake country codes
+        "SD3112000000198742637541",
+        "SU56263300012039086",
+        "ZZ9121000418450200051332",
+        "FU4550000000058398257466",
+        "GF9300762011623852957",
+        "FX380080012345678910157",
+        "RT330006100519786457841326",
+        "UL213223130000026007233566001",
+        "AP070331234567890123456",
+        "FF29NWBK60161331926819",
+        "VV59001123000012345678",
+        "GV96VPVG0000012345678901",
+        # Unsupported now by library
+        "AA0096VPVG0000012345",
+        "AO213223130000026",
+        "AX00213223130000026007",
+        "BF3112000000198742637541375",
+        "BI31120000001987",
+        "BJ31120000001987426375413750",
+        "BL3112000000198742637541375",
+        "BY31120000001987426375413754",
+        "CF3112000000198742637541375",
+        "CG3112000000198742637541375",
+        "CI31120000001987426375413750",
+        "CM3112000000198742637541375",
+        "CV31120000001987426375413",
+        "DJ3112000000198742637541375",
+        "DZ3112000000198742637541",
+        "GA3112000000198742637541375",
+        "GF3112000000198742637541375",
+        "GP3112000000198742637541375",
+        "GQ3112000000198742637541375",
+        "GW31120000001987426375413",
+        "HN31120000001987426375413759",
+        "IQ311200000019874263754",
+        "IR311200000019874263754137",
+        "KM3112000000198742637541375",
+        "LC311200000019874263754",
+        "MA31120000001987426375413750",
+        "MF3112000000198742637541375",
+        "MG3112000000198742637541375",
+        "ML31120000001987426375413750",
+        "MQ3112000000198742637541375",
+        "MU3112000000198742637541375000",
+        "MZ31120000001987426375413",
+        "NC3112000000198742637541375",
+        "NE31120000001987426375413750",
+        "NI311200000019874263754137500000",
+        "PF3112000000198742637541375",
+        "PM3112000000198742637541375",
+        "PS311200000019874263754137500",
+        "RE3112000000198742637541375",
+        "SC311200000019874263754137500000",
+        "SN31120000001987426375413750",
+        "ST31120000001987426375413",
+        "TD3112000000198742637541375",
+        "TF3112000000198742637541375",
+        "TG31120000001987426375413750",
+        "TN3112000000198742637541",
+        "WF3112000000198742637541375",
+        "YT3112000000198742637541375"
+      ]
+
+    Enum.all?(
+      invalid_ibans,
+      &assert(
+        match?({:error, :unsupported_country_code}, Parser.parse(&1)),
+        "expected #{&1} to match {:error, :unsupported_country_code}"
+      )
+    )
+  end
+end

test/iban_ex_test.exs

@@ -1,130 +1,74 @@
 defmodule IbanExTest do
-  alias IbanEx.{Country, Iban, Parser}
   use ExUnit.Case, async: true
+
   doctest_file "README.md"
+  doctest IbanEx.Country.AD
+  doctest IbanEx.Country.AE
+  doctest IbanEx.Country.AL
   doctest IbanEx.Country.AT
+  doctest IbanEx.Country.AZ
+  doctest IbanEx.Country.BA
   doctest IbanEx.Country.BE
   doctest IbanEx.Country.BG
+  doctest IbanEx.Country.BH
+  doctest IbanEx.Country.BR
   doctest IbanEx.Country.CH
+  doctest IbanEx.Country.CR
   doctest IbanEx.Country.CY
   doctest IbanEx.Country.CZ
   doctest IbanEx.Country.DE
   doctest IbanEx.Country.DK
+  doctest IbanEx.Country.DO
   doctest IbanEx.Country.EE
+  doctest IbanEx.Country.EG
   doctest IbanEx.Country.ES
   doctest IbanEx.Country.FI
+  doctest IbanEx.Country.FO
   doctest IbanEx.Country.FR
   doctest IbanEx.Country.GB
+  doctest IbanEx.Country.GE
   doctest IbanEx.Country.GI
+  doctest IbanEx.Country.GL
   doctest IbanEx.Country.GR
+  doctest IbanEx.Country.GT
+  doctest IbanEx.Country.JO
   doctest IbanEx.Country.HR
   doctest IbanEx.Country.HU
   doctest IbanEx.Country.IE
+  doctest IbanEx.Country.IL
   doctest IbanEx.Country.IT
+  doctest IbanEx.Country.IS
+  doctest IbanEx.Country.KZ
+  doctest IbanEx.Country.KW
+  doctest IbanEx.Country.LB
   doctest IbanEx.Country.LI
   doctest IbanEx.Country.LT
   doctest IbanEx.Country.LU
   doctest IbanEx.Country.LV
   doctest IbanEx.Country.MC
+  doctest IbanEx.Country.MD
+  doctest IbanEx.Country.ME
+  doctest IbanEx.Country.MK
+  doctest IbanEx.Country.MR
   doctest IbanEx.Country.MT
   doctest IbanEx.Country.NL
   doctest IbanEx.Country.NO
+  doctest IbanEx.Country.PK
   doctest IbanEx.Country.PL
   doctest IbanEx.Country.PT
+  doctest IbanEx.Country.QA
   doctest IbanEx.Country.RO
+  doctest IbanEx.Country.RS
+  doctest IbanEx.Country.SA
   doctest IbanEx.Country.SE
-  doctest IbanEx.Country.SM
   doctest IbanEx.Country.SI
   doctest IbanEx.Country.SK
+  doctest IbanEx.Country.SM
+  doctest IbanEx.Country.SV
+  doctest IbanEx.Country.TL
+  doctest IbanEx.Country.TR
   doctest IbanEx.Country.UA
   doctest IbanEx.Country.VA
-
+  doctest IbanEx.Country.VG
-  @ibans [
+  doctest IbanEx.Country.XK
-    "AL47212110090000000235698741",
-    "AD1200012030200359100100",
-    "AT611904300234573201",
-    "AZ21NABZ00000000137010001944",
-    "BH67BMAG00001299123456",
-    "BE68539007547034",
-    "BA391290079401028494",
-    "BR1800360305000010009795493C1",
-    "BG80BNBG96611020345678",
-    "CR05015202001026284066",
-    "HR1210010051863000160",
-    "CY17002001280000001200527600",
-    "CZ6508000000192000145399",
-    "DK5000400440116243",
-    "DO28BAGR00000001212453611324",
-    "EG380019000500000000263180002",
-    "SV62CENR00000000000000700025",
-    "EE382200221020145685",
-    "FO6264600001631634",
-    "FI2112345600000785",
-    "FR1420041010050500013M02606",
-    "GE29NB0000000101904917",
-    "DE89370400440532013000",
-    "GI75NWBK000000007099453",
-    "GR1601101250000000012300695",
-    "GL8964710001000206",
-    "GT82TRAJ01020000001210029690",
-    "HU42117730161111101800000000",
-    "IS140159260076545510730339",
-    "IE29AIBK93115212345678",
-    "IL620108000000099999999",
-    "IT60X0542811101000000123456",
-    "JO94CBJO0010000000000131000302",
-    "KZ86125KZT5004100100",
-    "XK051212012345678906",
-    "KW81CBKU0000000000001234560101",
-    "LV80BANK0000435195001",
-    "LB62099900000001001901229114",
-    "LI21088100002324013AA",
-    "LT121000011101001000",
-    "LU280019400644750000",
-    "MK07250120000058984",
-    "MT84MALT011000012345MTLCAST001S",
-    "MR1300020001010000123456753",
-    "MC5811222000010123456789030",
-    "ME25505000012345678951",
-    "NL91ABNA0417164300",
-    "NO9386011117947",
-    "PK36SCBL0000001123456702",
-    "PL61109010140000071219812874",
-    "PT50000201231234567890154",
-    "QA58DOHB00001234567890ABCDEFG",
-    "MD24AG000225100013104168",
-    "RO49AAAA1B31007593840000",
-    "SM86U0322509800000000270100",
-    "SA0380000000608010167519",
-    "RS35260005601001611379",
-    "SK3112000000198742637541",
-    "SI56263300012039086",
-    "ES9121000418450200051332",
-    "SE4550000000058398257466",
-    "CH9300762011623852957",
-    "TL380080012345678910157",
-    "TR330006100519786457841326",
-    "UA213223130000026007233566001",
-    "AE070331234567890123456",
-    "GB29NWBK60161331926819",
-    "VA59001123000012345678",
-    "VG96VPVG0000012345678901"
-  ]
-
-  test "parsing valid IBANs from available countries returns {:ok, %IbanEx.Iban{}}" do
-    assert Enum.all?(@ibans, fn iban ->
-             iban_country = iban |> String.upcase() |> String.slice(0..1)
-
-             case {Country.is_country_code_supported?(iban_country), Parser.parse(iban)} do
-               {true, {:ok, %Iban{}}} ->
-                 true
-
-               {false, {:error, :unsupported_country_code}} ->
-                 true
-
-               _ ->
-                 false
-             end
-           end)
-  end
 end

test/iban_ex_validator_test.exs

@@ -2,7 +2,121 @@ defmodule IbanExValidatorTest do
   alias IbanEx.{Validator}
   use ExUnit.Case, async: true
 
-  test "check IBANs length" do
+  @ibans [
+    "AL47212110090000000235698741",
+    "AD1200012030200359100100",
+    "AT611904300234573201",
+    "AZ21NABZ00000000137010001944",
+    "BH67BMAG00001299123456",
+    "BE68539007547034",
+    "BA391290079401028494",
+    "BR1800360305000010009795493C1",
+    "BG80BNBG96611020345678",
+    "CR05015202001026284066",
+    "HR1210010051863000160",
+    "CY17002001280000001200527600",
+    "CZ6508000000192000145399",
+    "DK5000400440116243",
+    "DO28BAGR00000001212453611324",
+    "EG380019000500000000263180002",
+    "SV62CENR00000000000000700025",
+    "EE382200221020145685",
+    "FO6264600001631634",
+    "FI2112345600000785",
+    "FR1420041010050500013M02606",
+    "GE29NB0000000101904917",
+    "DE89370400440532013000",
+    "GI75NWBK000000007099453",
+    "GR1601101250000000012300695",
+    "GL8964710001000206",
+    "GT82TRAJ01020000001210029690",
+    "HU42117730161111101800000000",
+    "IS140159260076545510730339",
+    "IE29AIBK93115212345678",
+    "IL620108000000099999999",
+    "IT60X0542811101000000123456",
+    "JO94CBJO0010000000000131000302",
+    "KZ86125KZT5004100100",
+    "XK051212012345678906",
+    "KW81CBKU0000000000001234560101",
+    "LV80BANK0000435195001",
+    "LB62099900000001001901229114",
+    "LI21088100002324013AA",
+    "LT121000011101001000",
+    "LU280019400644750000",
+    "MK07250120000058984",
+    "MT84MALT011000012345MTLCAST001S",
+    "MR1300020001010000123456753",
+    "MC5811222000010123456789030",
+    "ME25505000012345678951",
+    "NL91ABNA0417164300",
+    "NO9386011117947",
+    "PK36SCBL0000001123456702",
+    "PL61109010140000071219812874",
+    "PT50000201231234567890154",
+    "QA58DOHB00001234567890ABCDEFG",
+    "MD24AG000225100013104168",
+    "RO49AAAA1B31007593840000",
+    "SM86U0322509800000000270100",
+    "SA0380000000608010167519",
+    "RS35260005601001611379",
+    "SK3112000000198742637541",
+    "SI56263300012039086",
+    "ES9121000418450200051332",
+    "SE4550000000058398257466",
+    "CH9300762011623852957",
+    "TL380080012345678910157",
+    "TR330006100519786457841326",
+    "UA213223130000026007233566001",
+    "AE070331234567890123456",
+    "GB29NWBK60161331926819",
+    "VA59001123000012345678",
+    "VG96VPVG0000012345678901"
+  ]
+
+  test "Check Account number format positive cases" do
+    Enum.all?(@ibans, &assert(!Validator.iban_violates_account_number_format?(&1), &1))
+  end
+
+  test "Check National check format positive cases" do
+    Enum.all?(@ibans, &assert(!Validator.iban_violates_national_check_format?(&1), &1))
+  end
+
+  test "Check Branch code format positive cases" do
+    Enum.all?(@ibans, &assert(!Validator.iban_violates_branch_code_format?(&1), &1))
+  end
+
+  test "Check Bank code format positive cases" do
+    Enum.all?(@ibans, &assert(!Validator.iban_violates_bank_code_format?(&1), &1))
+  end
+
+  test "Check Account number format negative cases" do
+    cases = [
+      # shorter then need
+      {"AL4721211009000000023568741", true},
+      {"AD120001203020035900100", true},
+      {"AZ21NABZ0000000013701000944", true},
+      # invalid characters (leters) in number
+      {"AT6119043002A4573201", true},
+      {"BH67BMAG000012991A3456", true},
+      {"BE685390075X7034", true},
+      {"BA391290079401S28494", true},
+      {"BR180036030500001000979549CC1", true},
+      {"HR12100100518630001", true},
+      # shorter then need and has
+      # invalid characters (leters) in number
+      {"BR18003603050000100097CC1", true},
+      {"CR050152020010262806Ї", true},
+      # FIXME it is invalid IBAN for Bulgaria — need to change a rules function in Country Template module
+      # {"BG80BNBG9661102034567Ї", true},
+    ]
+
+    Enum.all?(cases, fn {iban, result} ->
+      assert(Validator.iban_violates_account_number_format?(iban) == result, iban)
+    end)
+  end
+
+  test "Check IBANs length" do
     cases = [
       {"FG2112345CC6000007", {:error, :unsupported_country_code}},
       {"UK2112345CC6000007", {:error, :unsupported_country_code}},