summaryrefslogtreecommitdiffstats
path: root/silpa/modules/syllabalizer/syllabalizer.py
blob: 706ee77e33938bbaf740d50e27cea7c8095393b7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
#!/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 common import *
class Syllabalizer(SilpaModule):
	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']
		limiters = ['.','\"','\'','`','!',';',',','?']

		chandrakkala = u'\u0d4d'
		lst_chars = []
		for char in text:
			if char in limiters:
				lst_chars.append(char)
			elif 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']
		limiters = ['.','\"','\'','`','!',';',',','?']

		chandrakkala = u'\u094d'
		lst_chars = []
		for char in text:
			if char in limiters:
				lst_chars.append(char)
			elif 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 process(self, form):
		response = """
		<h2>Syllabalizer</h2></hr>
		<p>Enter the text for syllabalization in the below text area.
		 Language of each  word will be detected. 
		 You can give the text in any language and even with mixed language
		</p>
		<form action="" method="post">
		<textarea cols='100' rows='25' name='input_text' id='id1'>%s</textarea>
		<input  type="submit" id="Syllabalize" value="Syllabalize"  name="action" style="width:12em;"/>
		<input type="reset" value="Clear" style="width:12em;"/>
		</br>
		</form>
		"""
		if(form.has_key('input_text')):
			text = form['input_text'].value.decode('utf-8')
			response=response % text
			words = text.split(" ")
			response = response+"<h2>Syllabalization Results</h2></hr>"
			for word in words:
				syllables = self.syllabalize(word)
				syll_result=""
				for syllable in syllables:
					syll_result=syll_result+syllable + "-"
				result =  syll_result.replace('\n', '<br/>')
				response = response+result
		else:
			response=response % ""	
		return response
	def get_module_name(self):
		return "Syllabalizer"
	def get_info(self):
		return 	"Syllabalize each word in the given text"
		
	def syllabalize(self,text):
		mm=ModuleManager()
		ld = mm.getModuleInstance("Detect Language")
		lang=ld.detect_lang(text)[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	
def getInstance():
		return Syllabalizer()