From 7987c66fb5bbffcf7cbf8318eaad82b2ca153197 Mon Sep 17 00:00:00 2001
From: Jeff Horemans <jeff.horemans@vortex-financials.be>
Date: Thu, 25 Jul 2024 15:52:39 +0200
Subject: [PATCH] Added Dutch identiteitskaartnummer.

---
 stdnum/nl/identiteitskaartnummer.py | 92 +++++++++++++++++++++++++++++
 1 file changed, 92 insertions(+)
 create mode 100644 stdnum/nl/identiteitskaartnummer.py

diff --git a/stdnum/nl/identiteitskaartnummer.py b/stdnum/nl/identiteitskaartnummer.py
new file mode 100644
index 00000000..97626a1f
--- /dev/null
+++ b/stdnum/nl/identiteitskaartnummer.py
@@ -0,0 +1,92 @@
+# identiteitskaartnummer.py - functions for handling Dutch Passport Number.
+# coding: utf-8
+#
+# Copyright (C) 2024 Jeff Horemans
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301 USA
+
+"""Identiteitskaartnummer, Paspoortnummer (the Dutch passport number).
+
+Each Dutch passport has an unique number of 9 alphanumerical characters.
+The first 2 characters are always letters and the last character is a number.
+The 6 characters inbetween can be either or.
+
+The letter "O" is never used to prevent it from being confused with the number "0".
+Zeros are thus allowed, but are not used anymore in numbers issued after December 2019.
+
+More information:
+
+* https://www.rvig.nl/node/356
+* https://nl.wikipedia.org/wiki/Paspoort#Nederlands_paspoort
+
+>>> compact('EM0000000')
+'EM0000000'
+>>> compact('XR 1001R5 8')
+'XR1001R58'
+
+>>> validate('EM0000000')
+'EM0000000'
+>>> validate('XR1001R58')
+'XR1001R58'
+
+>>> validate('XR1001R')
+Traceback (most recent call last):
+    ...
+InvalidLength: ...
+
+>>> validate('581001RXR')
+Traceback (most recent call last):
+    ...
+InvalidFormat: ...
+
+>>> validate('XR1O01R58')
+Traceback (most recent call last):
+    ...
+InvalidComponent: ...
+
+"""
+
+import re
+
+from stdnum.exceptions import *
+from stdnum.util import clean
+
+
+def compact(number):
+    """Convert the number to the minimal representation. This strips the
+    number of any valid separators and removes surrounding white space."""
+    return clean(number, ' ').strip().upper()
+
+
+def validate(number):
+    """Check if the number is a valid passport number.
+    This checks the length, formatting and check digit."""
+    number = compact(number)
+    if len(number) != 9:
+        raise InvalidLength()
+    if not re.match('^[A-Z]{2}[0-9A-Z]{6}[0-9]$', number):
+        raise InvalidFormat()
+    if 'O' in number:
+        raise InvalidComponent(InvalidComponent("The letter 'O' is not allowed"))
+    return number
+
+
+def is_valid(number):
+    """Check if the number is a valid Dutch passport number."""
+    try:
+        return bool(validate(number))
+    except ValidationError:
+        return False