Modül:bn-alfabeçeviri

-- Transliteration for Bengali

local export = {}
local gsub = mw.ustring.gsub
local match = mw.ustring.match
 
local conv = {
	-- consonants
	 = 'kkh',  = 'gg',
	 = 'k',	 = 'kh',	 = 'g',	 = 'gh',	 = 'ṅ',
	 = 'c',	 = 'ch',	 = 'j',	 = 'jh',	 = 'ñ',
	 = 'ṭ',	 = 'ṭh',	 = 'ḑ',	 = 'ḑh',	 = 'ṇ',
	 = 't',	 = 'th',	 = 'd',	 = 'dh',	 = 'n',
	 = 'p',	 = 'ph',	 = 'b',	 = 'bh',	 = 'm',
	 = 'j',	 = 'r',	 = 'l',	 = 'w', 
	 = 'ś',	 = 'ṣ',	 = 's',	 = 'h',	
	 = 'y',	 = 'ṛ',	 = 'ṛh',

	-- visarga
	 = 'ḥ',

	-- vowel diacritics
	 = 'i',	 = 'u',	 = 'ri',	 = 'e',	 = 'o',
	 = 'a',	 = 'i',	 = 'u',	 = 'oi',	 = 'ou',

	-- vowel signs
	 = 'ô',	 = 'i',	 = 'u',	 = 'ri',	 = 'e',	 = 'o',
	 = 'a',	 = 'i',	 = 'u',	 = 'oi',	 = 'ou',

	--hôshôntô
	 = '',

	-- chôndrôbindu
	 = 'ṁ',
		
	-- ônusbar
	 = 'N',

	-- khôndô tô
	 = 't',

	-- numerals
	 = '0',  = '1',  = '2',  = '3',  = '4',  = '5',  = '6',  = '7',  = '8',  = '9',
 
	-- punctuation
	 = '.', -- dari
}

function export.tr(text, lang, sc)
	local c = '(়?)'
	local y = 'য়'
	local r = 'র'
	local v = '()'
	local virama = '্'
	local n = '(ং?)'
	
	local no_virama = mw.ustring.gsub(v,virama,"")
	
	text = text .. " "
	
	text = mw.ustring.gsub(text,c,"%1ô")
	text = mw.ustring.gsub(text,"ô"..v,"%1")
	
	text = mw.ustring.gsub(text,v..n..c.."ô ",function(j,k,l) --ending
		return l==y and j..k..l.."ô " or j..k..l.." "
	end)
	
	local pattern = v..n..c.."ô"..c .. no_virama
	local continue = true
	while continue do
		continue = false
		text = mw.ustring.gsub(text,"(.*)"..pattern,function(d,e,f,g,h,i)
			if g~=y and g~=r then
				continue = true
			end
			return (g==y or g==r) and d..e..f..g.."ô"..h..i or d..e..f..g..h..i
		end)
	end
	
	text = mw.ustring.gsub(text,"(়)",conv)
	text = mw.ustring.gsub(text,"ক্ষ","kkh")
	text = mw.ustring.gsub(text,"জ্ঞ","gg")
	text = mw.ustring.gsub(text,".",conv)
	
	text = mw.ustring.gsub(text,"ː(.)","%1%1")
	
	text = mw.ustring.gsub(text," ?।",".")
	
	text = mw.ustring.gsub(text,"(y)ô ","%1 ")
	text = gsub(text,"ôN ","ông ")
	text = gsub(text,"N","ng")

	text = mw.ustring.gsub(text,"()b","%1")
	
	text = mw.ustring.gsub(text," $","")
	
	return mw.ustring.toNFC(text)
end
 
return export