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#!/usr/bin/env python
"""mlsplit - Split Malayalam words into letters
This script splits Malayalam words into letters.
Ref: http://tinyurl.com/3v729s
Copyright (C) 2008 Baiju M <baiju.m.mail AT gmail.com>
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
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
import sys
import re
import codecs
from langdetect import LangDetect
class Syllabalizer:
def syllabalize_ml(self,text):
signs = [
u'\u0d02', u'\u0d03', u'\u0d3e', u'\u0d3f', u'\u0d40', u'\u0d41',
u'\u0d42', u'\u0d43', u'\u0d44', u'\u0d46', u'\u0d47', u'\u0d48',
u'\u0d4a', u'\u0d4b', u'\u0d4c', u'\u0d4d']
chandrakkala = u'\u0d4d'
lst_chars = []
for char in text:
if char in signs:
lst_chars[-1] = lst_chars[-1] + char
else:
try:
if lst_chars[-1][-1] == chandrakkala:
lst_chars[-1] = lst_chars[-1] + char
else:
lst_chars.append(char)
except IndexError:
lst_chars.append(char)
return lst_chars
def syllabalize_hi(self,text):
signs = [
u'\u0902', u'\u0903', u'\u093e', u'\u093f', u'\u0940', u'\u0941',
u'\u0942', u'\u0943', u'\u0944', u'\u0946', u'\u0947', u'\u0948',
u'\u094a', u'\u094b', u'\u094c', u'\u094d']
chandrakkala = u'\u094d'
lst_chars = []
for char in text:
if char in signs:
lst_chars[-1] = lst_chars[-1] + char
else:
try:
if lst_chars[-1][-1] == chandrakkala:
lst_chars[-1] = lst_chars[-1] + char
else:
lst_chars.append(char)
except IndexError:
lst_chars.append(char)
return lst_chars
#Source: http://www.python-forum.org/pythonforum/viewtopic.php?f=14&t=5810#p42091
#Author: Cabu
def syllabalize_en(self,text):
text = " " + text + " "
vowel_list = ['a', 'e', 'i', 'o', 'u', 'y']
vowel_pairs = ['ai', 'au', 'aw', 'ee','ea', 'oa', 'oi', 'ou', 'oo', 'ow', 'oy', 'uu']
consonant_list = ['b', 'c', 'd', 'f', 'g', 'h', 'j', 'k', 'l', 'm', 'n', 'p', 'q', 'r', 's', 't', 'v', 'w', 'x', 'z']
consonant_blends = ['bl', 'br', 'ch', 'chr', 'cl', 'cr', 'dr', 'fl', 'fr', 'gl', 'gr', 'kn', 'pl', 'pr',
'sc', 'sh', 'sk', 'sl', 'sm', 'sn', 'sp', 'spr', 'squ', 'st', 'str', 'sw',
'th', 'tr', 'thr', 'nt', 'wh']
# Cut numbers in digits
p = re.compile ("([0-9])([0-9])", re.IGNORECASE)
for i in range (2):
text = p.sub ("\\1#\\2", text)
# Cut i / vowel (- o) / consonant
p = re.compile ("i([aeiuy])([bcdfghjklmnpqrstvwxz])", re.IGNORECASE)
text = p.sub ("i+\\1+\\2", text)
# Cut the / vowel / consonant
p = re.compile ("the([aeiouy])([bcdfghjklmnpqrstvwxz])", re.IGNORECASE)
text = p.sub ("the+\\1+\\2", text)
# Cut vowel / vowel except for pairs
position = 0
while position < len (text)-1:
if text [position] in vowel_list and text [position+1] in vowel_list:
if not (text [position:position+2] in vowel_pairs):
if not (text [position-1:position+3] in ["tion", "dual", "nion", "quir", "tiou"]):
text = text [:position+1] + "_" + text [position+1:]
position = position + 1
# Cut consonant / consonant (ll, mm, ...)
p = re.compile ("([bcdfghjklmnpqrstvwxz])\\1([^ ])", re.IGNORECASE)
text = p.sub ("\\1-\\1\\2", text)
# Cut vowel / consonant vowel
start = 0
end = 0
while start < len (text)-1:
if text [start] in vowel_list and text [start+1] in consonant_list:
end = start + 1
while end <= len (text)-1 and text [end] in consonant_list:
end = end + 1
if end <= len (text)-1 and (text [start+1:end] in consonant_list or text [start+1:end] in consonant_blends) and text [end] in vowel_list and text [end:end+2] <> "e ":
text = text [:start+1] + "/" + text [start+1:]
start = start + 1
# Cut vowel consonant / consonant+ vowel (trumpet, simple, understanding, ...)
start = 0
end = 0
while start < len (text)-1:
if text [start] in vowel_list and text [start+1] in consonant_list:
end = start + 2
while end <= len (text)-1 and text [end] in consonant_list:
end = end + 1
if end <= len (text)-1 and end > start+2 and text [end] in vowel_list:
if not (text [start+1:end] in consonant_blends):
text = text [:start+2] + "-" + text [start+2:]
start = start + 1
# Return the words splitted
return text
def syllabalize(self,text):
ld=LangDetect()
lang=ld.detect_lang(text)
if(lang=="ml_IN"):
return self.syllabalize_ml(text)
if(lang=="hi_IN"):
return self.syllabalize_hi(text)
if(lang=="en_US"):
return self.syllabalize_en(text)
lst_chars=[]
for char in text:
lst_chars.append(char)
return lst_chars
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