# -*- coding: utf-8 -*-
# Copyright 2014-2018 by Christopher C. Little.
# This file is part of Abydos.
#
# Abydos is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Abydos 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Abydos. If not, see <http://www.gnu.org/licenses/>.
"""abydos.phonetic._mra.
MRA personal numeric identifier (PNI).
"""
from __future__ import (
absolute_import,
division,
print_function,
unicode_literals,
)
from ._phonetic import _Phonetic
__all__ = ['MRA', 'mra']
[docs]class MRA(_Phonetic):
"""Western Airlines Surname Match Rating Algorithm.
A description of the Western Airlines Surname Match Rating Algorithm can
be found on page 18 of :cite:`Moore:1977`.
"""
[docs] def encode(self, word):
"""Return the MRA personal numeric identifier (PNI) for a word.
Parameters
----------
word : str
The word to transform
Returns
-------
str
The MRA PNI
Examples
--------
>>> pe = MRA()
>>> pe.encode('Christopher')
'CHRPHR'
>>> pe.encode('Niall')
'NL'
>>> pe.encode('Smith')
'SMTH'
>>> pe.encode('Schmidt')
'SCHMDT'
"""
if not word:
return word
word = word.upper()
word = word.replace('ß', 'SS')
word = word[0] + ''.join(
c for c in word[1:] if c not in self._uc_v_set
)
word = self._delete_consecutive_repeats(word)
if len(word) > 6:
word = word[:3] + word[-3:]
return word
[docs]def mra(word):
"""Return the MRA personal numeric identifier (PNI) for a word.
This is a wrapper for :py:meth:`MRA.encode`.
Parameters
----------
word : str
The word to transform
Returns
-------
str
The MRA PNI
Examples
--------
>>> mra('Christopher')
'CHRPHR'
>>> mra('Niall')
'NL'
>>> mra('Smith')
'SMTH'
>>> mra('Schmidt')
'SCHMDT'
"""
return MRA().encode(word)
if __name__ == '__main__':
import doctest
doctest.testmod()