python-stdnum commit: r148 - in python-stdnum: . stdnum stdnum/bg tests

[Commits of the python-stdnum project <python-stdnum-commits [at] lists.arthurdejong.org>]

Author: arthur
Date: Sat Feb 18 22:32:34 2012
New Revision: 148
URL: http://arthurdejong.org/viewvc/python-stdnum?revision=148&view=revision

Log:
add a PNF (ЛНЧ, Личен номер на чужденец, Bulgarian personal number of a 
foreigner) module

Added:
   python-stdnum/stdnum/bg/pnf.py
Modified:
   python-stdnum/README
   python-stdnum/stdnum/__init__.py
   python-stdnum/tests/test_robustness.doctest

Modified: python-stdnum/README
==============================================================================
--- python-stdnum/README        Sat Feb 18 21:05:29 2012        (r147)
+++ python-stdnum/README        Sat Feb 18 22:32:34 2012        (r148)
@@ -31,6 +31,7 @@
    for foreigners)
  * CNP (Cod Numeric Personal, Romanian Numerical Personal Code)
  * EGN (ЕГН, Единен граждански номер, Bulgarian personal identity codes)
+ * PNF (ЛНЧ, Личен номер на чужденец, Bulgarian personal number of a foreigner)
  * NIF (Número de Identificación Fiscal, Spanish VAT number)
  * FPA, ΦΠΑ (Foros Prostithemenis Aksias, the Greek VAT number)
  * Ust ID Nr. (Umsatzsteur Identifikationnummer, the German VAT number)

Modified: python-stdnum/stdnum/__init__.py
==============================================================================
--- python-stdnum/stdnum/__init__.py    Sat Feb 18 21:05:29 2012        (r147)
+++ python-stdnum/stdnum/__init__.py    Sat Feb 18 22:32:34 2012        (r148)
@@ -45,6 +45,7 @@
    for foreigners)
  * CNP (Cod Numeric Personal, Romanian Numerical Personal Code)
  * EGN (ЕГН, Единен граждански номер, Bulgarian personal identity codes)
+ * PNF (ЛНЧ, Личен номер на чужденец, Bulgarian personal number of a foreigner)
  * NIF (Número de Identificación Fiscal, Spanish VAT number)
  * FPA, ΦΠΑ (Foros Prostithemenis Aksias, the Greek VAT number)
  * Ust ID Nr. (Umsatzsteur Identifikationnummer, the German VAT number)

Added: python-stdnum/stdnum/bg/pnf.py
==============================================================================
--- /dev/null   00:00:00 1970   (empty, because file is newly added)
+++ python-stdnum/stdnum/bg/pnf.py      Sat Feb 18 22:32:34 2012        (r148)
@@ -0,0 +1,59 @@
+# pnf.py - functions for handling Bulgarian personal number of a foreigner
+# coding: utf-8
+#
+# Copyright (C) 2012 Arthur de Jong
+#
+# 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
+
+"""Module for handling Bulgarian PNF (ЛНЧ, Личен номер на чужденец) numbers.
+
+The personal number of a foreigner is a 10-digit number where the last digit
+is the result of a weighted checksum.
+
+>>> compact('7111 042 925')
+'7111042925'
+>>> is_valid('7111042925')
+True
+>>> is_valid('7111042922')  # invalid check digit
+False
+"""
+
+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 whitespace."""
+    return clean(number, ' -.').upper().strip()
+
+
+def calc_check_digit(number):
+    """Calculate the check digit. The number passed should not have the
+    check digit included."""
+    weights = (21, 19, 17, 13, 11, 9, 7, 3, 1)
+    return str(sum(weights[i] * int(n) for i, n in enumerate(number)) % 10)
+
+
+def is_valid(number):
+    """Checks to see if the number provided is a valid national
+    identification number. This checks the length, formatting, embedded
+    date and check digit."""
+    try:
+        number = compact(number)
+    except:
+        return False
+    return number.isdigit() and len(number) == 10 and \
+           calc_check_digit(number[:-1]) == number[-1]

Modified: python-stdnum/tests/test_robustness.doctest
==============================================================================
--- python-stdnum/tests/test_robustness.doctest Sat Feb 18 21:05:29 2012        
(r147)
+++ python-stdnum/tests/test_robustness.doctest Sat Feb 18 22:32:34 2012        
(r148)
@@ -28,7 +28,7 @@
 >>> from stdnum import luhn, meid, verhoeff
 >>> from stdnum.at import uid
 >>> from stdnum.be import vat as be_vat
->>> from stdnum.bg import egn
+>>> from stdnum.bg import egn, pnf
 >>> from stdnum.br import cpf
 >>> from stdnum.cy import vat as cy_vat
 >>> from stdnum.cz import dic, rc
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