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# -*- coding: iso-8859-15 -*-

"""
Dieses Modul stellt eine Implementation
der 'Kölner Phonetik' dar.

Beispiele zur Verwendung:
>>> encode("Moritz Müller")
'678657'
>>> encode("Moriz Müler")
'678657'
>>> encode("Laura Mayer")
'5767'
>>> encode("Laura Meier")
'5767'
"""

import re

RULETABLE = {re.compile(r".[A|E|I|J|O|U|Y|Ä|Ö|Ü].", re.I):     "0",
             re.compile(r".[B].", re.I):                       "1",
             re.compile(r".[P][^H]", re.I):                    "1",
             re.compile(r".[D|T][^C|S|Z]", re.I):              "2",
             re.compile(r".[F|V|W].", re.I):                   "3",
             re.compile(r"[P][H].", re.I):                     "3",
             re.compile(r".[G|K|Q].", re.I):                   "4",
             re.compile(r"[\b][C][A|H|K|L|O|Q]", re.I):        "4",
             re.compile(r"[^S|Z][C][A|H|K|O|Q|U|X]", re.I):    "4",
             re.compile(r"[^C|K|Q][X].", re.I):                "48",
             re.compile(r".[L].", re.I):                       "5",
             re.compile(r".[M|N].", re.I):                     "6",
             re.compile(r".[R].", re.I):                       "7",
             re.compile(r".[S|Z|ß].", re.I):                   "8",
             re.compile(r"[S|Z][C].", re.I):                   "8",
             re.compile(r"\b[C][^A|H|K|L|O|Q|R|U|X]", re.I):   "8",
             re.compile(r".[C][^A|H|K|O|Q|U|X]", re.I):        "8",
             re.compile(r".[D|T][C|S|Z]", re.I):               "8",
             re.compile(r"[C|K|Q][X].", re.I):                 "8"
            }

def encode(inputstring):
    """
    encode(string) -> string
      Gibt den phonetischen Code des übergebenen Strings zurück.
    """

    encoded = ""
    for i in xrange(len(inputstring)):
        part = inputstring[i - 1:i + 2]
        if len(inputstring) == 1:
          part = " %s " % inputstring[0]
        elif i == 0:
            part = " %s" % inputstring[:2]
        elif i == len(inputstring) - 1:
            part = "%s " % inputstring[i - 1:]
        for rule, code in RULETABLE.iteritems():
            if rule.match(part):
                encoded += code
                break

    while [v for v in RULETABLE.itervalues() if encoded.find(v * 2) != -1]:
        for v in RULETABLE.itervalues():
            encoded = encoded.replace(v * 2, v)

    if encoded:
        encoded = encoded[0] + encoded[1:].replace("0", "")

    return encoded

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>>> encode("Leben")
'516'
>>> encode("Lübyien")
'516'
>>> encode("Lybien")
'516'

Code: Alles auswählen

**********************************************************************
File "colphon_reg.py", line 82, in __main__.colphon
Failed example:
    colphon('CRESZEW')
Expected:
    '4783'
Got:
    '8783'
**********************************************************************
1 items had failures:
   1 of  32 in __main__.colphon
***Test Failed*** 1 failures.
282