#  Spellchecker with language detection
#  coding: utf-8
#
#  Copyright © 2008  Santhosh Thottingal
#  Released under the GPLV3+ license


class LangDetect:
		
	def detect_lang(self, text):
		words=text.split(" ")
		word_count=len(words)
		word_iter=0
		word=""
		result_dict=dict()
		while word_iter < word_count:
			word=words[word_iter]
			if(word):
				length = len(word)
				index = 0
				while index < length:
					letter=word[index]
					if ((letter >= u'ം') &  (letter <=u'൯')):
						result_dict[word]= "ml_IN"
					if ((letter >= u'ঁ') &  (letter <= u'৺')):
						result_dict[word]= "bn_IN"
					if ((letter >= u'ँ') &  (letter <= u'ॿ')):
						result_dict[word]= "hi_IN"
					if ((letter >=u'ઁ') &  (letter <= u'૱')):
						result_dict[word]= "gu_IN"
					if ((letter >= u'ਁ') &  (letter <=u'ੴ')):
						result_dict[word]= "pa_IN"
					if ((letter >= u'ಂ') &  (letter <=u'ೲ')):
						result_dict[word]= "ka_IN"
					if ((letter >= u'ଁ') &  (letter <= u'ୱ')):
						result_dict[word]= "or_IN"
					if ((letter >=u'ஂ') &  (letter <= u'௺')):
						result_dict[word]= "ta_IN"
					if ((letter >=u'ఁ') &  (letter <= u'౯')):
						result_dict[word]= "te_IN"
					if ((letter <= u'z')):
						result_dict[word]= "en_US"
						
					index=index+1	
			word_iter=word_iter+1	
		return result_dict
	def process(self,form):
		response = """
		<h2>Language Detection</h2></hr>
		<p>Enter the text for detecting the language 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="Detect Language" value="Detect Language"  name="action" style="width:12em;"/>
		<input type="reset" value="Clear" style="width:12em;"/>
		</br>
		</form>
		"""
		if(form.has_key('input_text')):
			text = action=form['input_text'].value	.decode('utf-8')
			response=response % text
			detected_lang_dict = self.detect_lang(text)
			response = response+"<h2>Language Detection Results</h2></hr>"
			response = response+"<table><th><td>Word</td><td>Language</td></th>"
			for key in detected_lang_dict:
				response = response+"<tr><td>"+key+"</td><td>"+detected_lang_dict[key]+"</td></tr>"
			response = response+"</table>	"
		else:
			response=response % ""	
		return response