Module:Be-translit

local export = {}

local AC = mw.ustring.char(0x0301) -- acute = ́

local rsubn = mw.ustring.gsub local rfind = mw.ustring.find

-- 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

local tt = { ["А"]='A', ["а"]='a', ["Б"]='B', ["б"]='b', ["В"]='V', ["в"]='v', ["Г"]='H', ["г"]='h', ["Д"]='D', ["д"]='d', ["Е"]='Je', ["е"]='je', ["Ё"]='Jo', ["ё"]='jo', ["Ж"]='Ž', ["ж"]='ž', ["З"]='Z', ["з"]='z', ["І"]='I', ["і"]='i', ["И"]='I', ["и"]='i', -- present for Old Belarusian; FIXME, remove when we have a separate language code for this lang ["Й"]='J', ["й"]='j', ["К"]='K', ["к"]='k', ["Л"]='L', ["л"]='l', ["М"]='M', ["м"]='m', ["Н"]='N', ["н"]='n', ["О"]='O', ["о"]='o', ["П"]='P', ["п"]='p', ["Р"]='R', ["р"]='r', ["С"]='S', ["с"]='s', ["Т"]='T', ["т"]='t', ["У"]='U', ["у"]='u', ["Ў"]='Ŭ', ["ў"]='ŭ', ["Ф"]='F', ["ф"]='f', ["Х"]='X', ["х"]='x', ["Ц"]='C', ["ц"]='c', ["Ч"]='Č', ["ч"]='č', ["Ш"]='Š', ["ш"]='š', ["Ы"]='Y', ["ы"]='y', ["Ь"]='ʹ', ["ь"]='ʹ', ["Э"]='E', ["э"]='e', ["Ю"]='Ju', ["ю"]='ju', ["Я"]='Ja', ["я"]='ja', ["’"]='ʺ', ["ʼ"]='ʺ', -- currently non-standard, used in some older norms ["Ґ"]='G', ["ґ"]='g', -- Belarusian style quotes ['«']='“', ['»']='”', };

local unstressed_vowels = "aeiyuAEIYU" local unstressed_vowel = "[" .. unstressed_vowels .. "]"

local acute_decomposer = { ["á"] = "a" .. AC, ["é"] = "e" .. AC, ["í"] = "i" .. AC, ["ó"] = "o" .. AC, ["ú"] = "u" .. AC, ["ý"] = "y" .. AC, ["Á"] = "A" .. AC, ["É"] = "E" .. AC, ["Í"] = "I" .. AC, ["Ó"] = "O" .. AC, ["Ú"] = "U" .. AC, ["Ý"] = "Y" .. AC, }

function export.tr(text, lang, sc) if not rfind(text, "[Ѐ-џҊ-ԧꚀ-ꚗ]") then return nil end text = rsub(text, "'+", { ["'"] = 'ʺ' }) -- neutral apostrophe text = rsub(text, '.', tt)

-- Mark word boundaries text = rsub(text, "(%s+)", "#%1#") text = "#" .. text .. "#"

-- Mark stress on  text = rsub(text, "(#[^#Oo" .. AC .. "]*)([Oo])([^#Oo" .. AC .. "]*" .. unstressed_vowel .. "[^#Oo" .. AC .. "]*#)", "%1%2" .. AC .. "%3") text = rsub(text, "(#[^#Oo" .. AC .. "]*" .. unstressed_vowel .. "[^#Oo" .. AC .. "]*)([Oo])([^#Oo" .. AC .. "]*#)", "%1%2" .. AC .. "%3")

--Strip hashes text = rsub(text, "#", "")

return text end

function export.reverse_tr(text)--reverse-translit any words or phrases local reverse_tt = {} for k, v in pairs(tt) do		reverse_tt[v] = k	end reverse_tt['ʺ'] = "'" reverse_tt['ʹ'] = "ь" reverse_tt['i'] = "і" reverse_tt['I'] = "І" text = rsub(text, '.', acute_decomposer) text = rsub(text, '[Jj][aeou]', reverse_tt) text = rsub(text, '.', reverse_tt) return text end

return export