Module:Bn-translit

-- Transliteration for Bengali

local export = {} local gsub = mw.ustring.gsub local match = mw.ustring.match local conv = { -- consonants ['ক্ষ'] = 'kkh', ['জ্ঞ'] = 'gg', ['ক'] = 'k',	['খ'] = 'kh',	['গ'] = 'g',	['ঘ'] = 'gh',	['ঙ'] = 'ṅ', ['চ'] = 'c',	['ছ'] = 'ch',	['জ'] = 'j',	['ঝ'] = 'jh',	['ঞ'] = 'ñ', ['ট'] = 'ṭ',	['ঠ'] = 'ṭh',	['ড'] = 'ḍ',	['ঢ'] = 'ḍh',	['ণ'] = 'n', ['ত'] = 't',	['থ'] = 'th',	['দ'] = 'd',	['ধ'] = 'dh',	['ন'] = 'n', ['প'] = 'p',	['ফ'] = 'ph',	['ব'] = 'b',	['ভ'] = 'bh',	['ম'] = 'm', ['য'] = 'j',	['র'] = 'r',	['ল'] = 'l', ['শ'] = 'ś',	['ষ'] = 'ś',	['স'] = 'ś',	['হ'] = 'h', ['য়'] = 'ẏ',	['ড়'] = 'ṛ',	['ঢ়'] = 'ṛh',

-- biśôrgô ['ঃ'] = 'ḥ',

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

-- vowel signs ['অ'] = 'ô',	['ই'] = 'i',	['উ'] = 'u',	['ঋ'] = 'ri',	['এ'] = 'e',	['ও'] = 'o', ['আ'] = 'a',	['ঈ'] = 'i',	['ঊ'] = 'u',	['ঐ'] = 'oi',	['ঔ'] = 'ou',

--hôśôntô ['্'] = '',

-- côndrôbindu ["ঁ"] = "̃",	-- ônuśśar ['ং'] = 'ṅ', -- ôbôgrôhô ['ঽ']='’',

-- khôndô tô	['ৎ'] = 't',

-- numerals ['০'] = '0', ['১'] = '1', ['২'] = '2', ['৩'] = '3', ['৪'] = '4', ['৫'] = '5', ['৬'] = '6', ['৭'] = '7', ['৮'] = '8', ['৯'] = '9',	-- punctuations ['।'] = '.', -- dãṛi ['॥'] = '.', -- double dãṛi }

local deaspirate = { ['খ'] = 'ক',	['ঘ'] = 'গ', ['ছ'] = 'চ',	['ঝ'] = 'জ', ['ঠ'] = 'ট',	['ঢ'] = 'ড', ['থ'] = 'ত',	['ধ'] = 'দ', ['ফ'] = 'প',	['ভ'] = 'ব', ['ঢ়'] = 'ড়', }

function export.tr(text, lang, sc) local c = '([কষজঞকখগঘঙচছজঝঞটঠডঢণতথদধনপফবভমযরলশষসহ]়?)' local y = 'য' local r = 'র' local v = '([ô্িুৃেোাীূৈৌঅইউঋএওআঈঊঐঔ])' local virama = '্' local n = '(ং?)' local no_virama = gsub(v,virama,"") text = text .. " "	text = gsub(text, c .. '্য', function(f)		if deaspirate[f] then			return deaspirate[f] .. '্' .. f		end	end) text = gsub(text, c, "%1ô") text = gsub(text, "ô".. "([ô্িুৃেোাীূৈৌ])", "%1") text = 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 = 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 = gsub(text, "ওয়", "ẇ") text = gsub(text, "([যডঢ]়)", conv) text = gsub(text, "ক্ষ", "kkh") text = gsub(text, "জ্ঞ", "gg") text = gsub(text, ".", conv) text = gsub(text, "ː(.)", "%1%1") text = gsub(text, " ?।", ".") -- vowel fix text = gsub(text, "([āēeo]y)ô ", "%1 ") -- nasalization fix text = gsub(text, "ôN ", "ông ") text = gsub(text, "N", "ng") -- tb / sb -> t / s	text = gsub(text, "([tsś])b", "%1") text = gsub(text, " $", "") return mw.ustring.toNFC(text) end return export