Module:tt-translit

local export = {}

local rsubn = mw.ustring.gsub

-- version of rsubn that discards all but the first return value local function rsub(term, foo, bar) local retval = rsubn(term, foo, bar) return retval end

-- apply rsub repeatedly until no change local function rsub_repeatedly(term, foo, bar) while true do		local new_term = rsub(term, foo, bar) if new_term == term then return term end term = new_term end end

local tt = { ["ү"]="ü",['Ү']='Ü',  ["т"]="t",['Т']='T', ["р"]="r",['Р']='R',   ["ф"]="f",['Ф']='F', ["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', ["ө"]="ö",['Ө']='Ö',   ["и"]="i",['И']='İ', ["ё"]="yo",['Ё']='Yo', ["ж"]="j",['Ж']='J',  ["к"]="k",['К']='K', ["д"]="d",['Д']='D',   ["в"]="w",['В']='W', ["ц"]="ts",['Ц']='Ts', ["а"]="a",['А']='A',  ["ң"]="ñ",['Ң']='Ñ', ["җ"]="c",['Җ']='C',   ["һ"]="h",['Һ']='H', ["ә"]="ä",['Ә']='Ä' };

function export.tr(text, lang, sc) text = rsub(		text,		"([АОӘУЫЕЯЁЮИЕаоәуыэяёюиеъь%A][́̀]?)([Ее])",		function(a,e) return a..(e=='е' and 'ye' or 'Ye') end	) -- ү/у should be transliterated as w after vowels (except у/ү itself) text = rsub_repeatedly(text, "([АаЕеЭэЯяӘәИиӨөЫы])[үу]", "%1w") text = rsub_repeatedly(text, "([УҮүу])([АаЫыОоУуӘәЕеИиӨөҮү])", "%1w%2") text = rsub(text, "^Е", "Ye") text = rsub(text, "^е","ye") text = rsub(text, "ия$", "iyä") --not last word end handled in code end -- Deal with dual nature of к, г, transliterated either to "front" variants -- k/g or "back" variants q/ğ. The back variants occur before hard signs -- (Ъ/ъ), which then disappear, and also in the vicinity of the back vowels -- а/о/у/ы (and their capital equivalents А/О/У/Ы). The code below that -- handles this appears to say that the sound of word-initial к/г is	-- determined by the following vowel, and the sound of non-word-initial -- к/г is determined by the preceding vowel. FIXME: Not sure if this is -- correct. -- glottal stop text = rsub(text, "([АаЫыОоУуӘәЭэИиӨөҮүЕе])([ЪъЬьЭэ])", "%1'") local t = {['К']='Q',['к']='q',['Г']='Ğ',['г']='ğ'} text = rsub(text, "([КкГг])([Ъъ])", function(a,b) return t[a] end) text = rsub(text,		"(%a?)([КкГг])(.?)",		function(b,c,a)			return b .. (mw.ustring.match(b>'' and b or a,"[АОУЫаоуы]") and t[c] or tt[c]) .. a		end	)

text = rsub(text, "ия%A", "iyä") text = rsub(text, ".", tt) return text end

return export