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#! /usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright 2009 Santhosh Thottingal <santhosh.thottingal@gmail.com>
# http://www.smc.org.in
#
# This program 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.
#
# This program 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 Library General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# If you find any bugs or have any suggestions email: santhosh.thottingal@gmail.com
# URL: http://www.smc.org.in
def soundexDigit(char):
index=0
lang= charmap.language(char)
try:
if lang == "en_US":
return cm["soundex_en"][cm[lang].index(char)]
else:
return cm["soundex"][cm[lang].index(char)]
except:
'''In case of any exception- Mostly because of character not found in charmap'''
return 0
return 0
def soundex(name, len=8):
sndx =''
fc = ''
# translate alpha chars in name to soundex digits
for c in name.lower():
if not fc: fc = c # remember first letter
d = str(soundexDigit(c))
# duplicate consecutive soundex digits are skipped
if not sndx or (d != sndx[-1]):
sndx += d
# replace first digit with first alpha character
sndx = fc + sndx[1:]
# remove all 0s from the soundex code
sndx = sndx.replace('0','')
# return soundex code padded to len characters
return (sndx + (len * '0'))[:len]
def compare(string1, string2):
#do a quick check
if string1 == string2 : #Exact Match
return 0
soundex1= soundex(string1)
soundex2= soundex(string2)
if soundex1 == soundex2 : #Both sounds alike
return 1
#Check whether the first letters are phonetically same from different languages
if charCompare( string1[0] , string2[0]) >= 0 :
return 2
#Strings doesnot match
return -1
if __name__ == '__main__':
print compare(u"സന്തോഷ്", u"सन्तौष")
print compare(u"അടി", u"ഇടി")
print compare(u"അധി", u"അതി")
print compare(u"പ്രതീഷ്", u"പ്രദീഷ്")
print compare(u"പ്രതീഷ്", u"ப்ரதீஷ்")
print compare(u"streng", u"string")
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