Transliterate Urdu to Roman Urdu In Python

I have written a small Urdu to Roman Urdu Conversion One to One mapping code in python.

The table for mapping is by:

Ahmed, T. (2009). Roman to Urdu Transliteration using word list. Conference of Language and Technology, submitted.

The code for python is:

	buck2uni = {
	u"\u0627":"A",
	u"\u0627":"A",
	u"\u0675":"A",
	u"\u0673":"A",
	u"\u0630":"A",
	u"\u0622":"AA",
	u"\u0628":"B",
	u"\u067E":"P",
	u"\u062A":"T",
	u"\u0637":"T",
	u"\u0679":"T",
	u"\u062C":"J",
	u"\u0633":"S",
	u"\u062B":"S",
	u"\u0635":"S",
	u"\u0686":"CH",
	u"\u062D":"H",
	u"\u0647":"H",
	u"\u0629":"H",
	u"\u06DF":"H",
	u"\u062E":"KH",
	u"\u062F":"D",
	u"\u0688":"D",
	u"\u0630":"Z",
	u"\u0632":"Z",
	u"\u0636":"Z",
	u"\u0638":"Z",
	u"\u068E":"Z",
	u"\u0631":"R",
	u"\u0691":"R",
	u"\u0634":"SH",
	u"\u063A":"GH",
	u"\u0641":"F",
	u"\u06A9":"K",
	u"\u0642":"K",
	u"\u06AF":"G",
	u"\u0644":"L",
	u"\u0645":"M",
	u"\u0646":"N",
	u"\u06BA":"N",
	u"\u0648":"O",
	u"\u0649":"Y",
	u"\u0626":"Y",
	u"\u06CC":"Y",
	u"\u06D2":"E",
	u"\u06C1":"H",
	u"\u064A":"E" ,
	u"\u06C2":"AH" ,
	u"\u06BE":"H" ,
	u"\u0639":"A" ,
	u"\u0643":"K" ,
	u"\u0621":"A",
	u"\u0624":"O",
	u"\u060C":"" #seperator ulta comma
	}
	def transString(string, reverse=0):
	'''Given a Unicode string, transliterate into Buckwalter. To go from
	Buckwalter back to Unicode, set reverse=1'''
	for k, v in buck2uni.items():
	if not reverse:
	string = string.replace(k, v)
	else:
	string = string.replace(v, k)
	return string
	word = 'قانونی'
	word.decode('utf-8', 'ignore')
	print(unicode(word, "utf-8"))
	print(transString(word))

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