local export = {}

local tt = {
	["ү"]="ü",  ['Ү']='Ü',  ["т"]="t",  ['Т']='T',  ["р"]="r",  ['Р']='R',  ["ф"]="f",  ['Ф']='F',  ["ө"]="ö", ['Ө']='Ö',
	["ю"]="yu", ['Ю']='Yu', ["ш"]="ş",  ['Ш']='Ş',  ["ь"]="’",  ['Ь']='’',  ["ъ"]="ʺ",  ['Ъ']='ʺ',   ["н"]="n", ['Н']='N', 
	["п"]="p",  ['П']='P',  ["й"]="y",  ['Й']='Y',  ["л"]="l",  ['Л']='L',  ["з"]="z",  ['З']='Z',  ["е"]="e", ['Е']='E', 
	["г"]="g",  ['Г']='G',  ["б"]="b",  ['Б']='B',  ["у"]="u",  ['У']='U',  ["с"]="s",  ['С']='S',  ["х"]="x", ['Х']='X',
	["ч"]="ç",  ['Ч']='Ç',  ["щ"]="şç", ['Щ']='Şç', ["я"]="ya", ['Я']='Ya', ["ы"]="ı",  ['Ы']='I',  ["э"]="e", ['Э']='E', 
	["м"]="m",  ['М']='M',  ["о"]="o",  ['О']='O',  ["и"]="i",  ['И']='İ',  ["ё"]="yo", ['Ё']='Yo', ["ж"]="j", ['Ж']='j',
	["к"]="k",  ['К']='K',  ["д"]="d",  ['Д']='D',  ["в"]="v",  ['В']='V',  ["ц"]="ts", ['Ц']='Ts', ["а"]="a", ['А']='A',
	["ң"]="ŋ",  ['Ң']='Ŋ',  ["ғ"]="ğ",  ['Ғ']='Ğ',  ["ҙ"]="ð",  ['Ҙ']='Đ',  ["ҡ"]="q",  ['Ҡ']='Q',  ["ҫ"]="θ", ['Ҫ']='Θ',
	["һ"]="h",  ['Һ']='H',  ["ә"]="ä",  ['Ә']='Ä'
};

local iotated = {
	['е'] = 'ye',
	['Е'] = 'Ye',
}

function export.tr(text, lang, sc)
	local str_gsub = string.gsub
	local ugsub = mw.ustring.gsub
	-- ү/у should be transliterated as w after vowels
	text = ugsub(text, "([АаЕеЭэЮюЯяӘәИиҮүУуӨөЫы])[үу]", "%1w")
	
	text = ugsub(text,
			"([АОӨӘУЫЕЯЁЮИЕаоөәуыэяёюиеъь%A][́̀]?)([Ее])",
			function(a, e)
				return a .. iotated[e]
			end)
	text = ugsub(text,
		"^[Ее]",
		iotated)
	text = str_gsub(text, '[\1-\127\194-\244][\128-\191]*', tt)

	return text
end

return export