এই মডিউলের জন্য মডিউল:pi-translit/নথি-এ নথিপত্র তৈরি করা হয়ে থাকতে পারে

local export = {}
local gsub = mw.ustring.gsub

function export.trwo(text, lang, sc, options)
	if (sc == 'Brah') then
		text = require('Module:Brah-translit').tr(text, lang, sc)
	elseif (sc == 'Deva') then
		text = require('Module:sa-translit').tr(text, lang, sc)
	elseif (sc == 'Sinh') then
		text = require('Module:si-translit').tr(text, lang, sc)
	elseif sc == 'Beng' or sc == 'Mymr' or sc == 'Lana' or sc == 'Khmr'
		or sc == 'Thai' or sc == 'Laoo'
	then
		local u = mw.ustring.char
		local function dc(x) -- Use this to make marks legible.  The name 'dc' means 'drop carrier'.
			return gsub(x, "[𑀓कকකကกᨠកກ]", "") -- These are the letter ka in the 9 supported Indic scripts.
		end
		local consonants = { -- And parts 1 of NFC-multipart independent vowels!
-- Bengali
			['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']='ṇ', 
			['ত']='t', ['থ']='th', ['দ']='d', ['ধ']='dh', ['ন']='n', 
			['প']='p', ['ফ']='ph', ['ব']='b', ['ভ']='bh', ['ম']='m',
			['য']='y', ['র']='r', ['ল']='l', ['ল়']='ḷ', -- xx['व']='v',
			['শ']='ś', ['ষ']='ṣ', ['স']='s', ['হ']='h',
			['ৰ']='v', ['ৰ'..u(0x200d)]='v', ['ৱ'] = 'v',
-- Myanmar
			['က']='k', ['ခ']='kh', ['ဂ']='g', ['ဃ']='gh', ['င']='ṅ',
			['စ']='c', ['ဆ']='ch', ['ဇ']='j', ['ဈ']='jh', ['ဉ']='ñ', 
			['ဋ']='ṭ', ['ဌ']='ṭh', ['ဍ']='ḍ', ['ဎ']='ḍh', ['ဏ']='ṇ', 
			['တ']='t', ['ထ']='th', ['ဒ']='d', ['ဓ']='dh', ['န']='n', 
			['ပ']='p', ['ဖ']='ph', ['ဗ']='b', ['ဘ']='bh', ['မ']='m',
			['ယ']='y', ['ရ']='r', ['လ']='l', ['ဝ']='v', ['ဠ']='ḷ',
			['ၐ']='ś', ['ၑ']='ṣ', ['သ']='s', ['ဟ']='h',
		    ['ည']='ññ', ['ဿ']='ss', ['အ'] = 'ʼ',
    -- Subscript consonants: 103B..103E, 105E..1060
			[dc('ကျ')]='y', [dc('ကြ')]='r', [dc('ကွ')]='v', [dc('ကှ')]='h',
			[dc('ကၞ')]='n', [dc('ကၟ')]='m', [dc('ကၠ')]='l',
    -- Mon Pali consonants
			['ၚ']='ṅ', ['ၛ']='jh',
    -- Shan (Pali) consonants - Excludes SHAN THA, MEDIAL WA, SIGN SHAW
			['ၵ']='k', ['ၶ']='kh', ['ၷ']='g', ['ꧠ']='gh', -- ['']='ṅ',
			['ၸ']='c', ['ꧡ']='ch', ['ၹ']='j', ['ꧢ']='jh', ['ၺ']='ñ', 
			['ꩦ']='ṭ', ['ꩧ']='ṭh', ['ꩨ']='ḍ', ['ꩩ']='ḍh', ['ꧣ']='ṇ', 
--			['']='t', ['']='th',
			['ၻ']='d', ['ꩪ']='dh', ['ၼ']='n', 
--			['']='p',
			['ၽ']='ph', ['ၿ']='b', ['ꧤ']='bh', -- ['']='m',
--			['']='y', ['']='r', ['']='l', ['']='v',
			['ꩮ']='ḷ',
--			['']='ś', ['']='ṣ', ['']='s',
			['ႁ']='h',
--		    ['']='ññ', ['']='ss',
			['ဢ'] = 'ʼ',
	-- Other first parts of independent vowels.
			['ဣ']='i', ['ဥ']='u',
    -- Lanna
			['ᨠ']='k', ['ᨡ']='kh', ['ᨣ']='g', ['ᨥ']='gh', ['ᨦ']='ṅ',
			['ᨧ']='c', ['ᨨ']='ch', ['ᨩ']='j', ['ᨫ']='jh', ['ᨬ']='ñ', 
			['ᨭ']='ṭ', ['ᨮ']='ṭh', ['ᨯ']='ḍ', ['ᨰ']='ḍh', ['ᨱ']='ṇ', 
			['ᨲ']='t', ['ᨳ']='th', ['ᨴ']='d', ['ᨵ']='dh', ['ᨶ']='n', 
			['ᨷ']='p', ['ᨸ']='p', ['ᨹ']='ph', ['ᨻ']='b', ['ᨽ']='bh', ['ᨾ']='m',
			['ᨿ']='y', ['ᩁ']='r', ['ᩃ']='l', ['ᩅ']='v', ['ᩊ']='ḷ',
			['ᩆ']='ś', ['ᩇ']='ṣ', ['ᩈ']='s', ['ᩉ']='h',
			['ᩔ'] = 'ss', ['ᩋ'] = 'ʼ', ['ᩐ'] = 'ū',
    -- Subscript consonants: 1A55, 1A56, 1A5B to 1A5E
			[dc('ᨠᩕ')]='r', [dc('ᨠᩖ')]='l', [dc('ᨠᩛ')]='ṭh', [dc('ᨠᩜ')]='m',
			[dc('ᨠᩝ')]='p', [dc('ᨠᩞ')]='s', 
-- Khmer
			['ក']='k', ['ខ']='kh', ['គ']='g', ['ឃ']='gh', ['ង']='ṅ',
			['ច']='c', ['ឆ']='ch', ['ជ']='j', ['ឈ']='jh', ['ញ']='ñ', 
			['ដ']='ṭ', ['ឋ']='ṭh', ['ឌ']='ḍ', ['ឍ']='ḍh', ['ណ']='ṇ', 
			['ត']='t', ['ថ']='th', ['ទ']='d', ['ធ']='dh', ['ន']='n', 
			['ប']='p', ['ផ']='ph', ['ព']='b', ['ភ']='bh', ['ម']='m',
			['យ']='y', ['រ']='r', ['ល']='l', ['វ']='v', ['ឡ']='ḷ',
			['ឝ']='ś', ['ឞ']='ṣ', ['ស']='s', ['ហ']='h', ['អ'] = 'ʼ',
-- Thai
			['ก']='k', ['ข']='kh', ['ค']='g', ['ฆ']='gh', ['ง']='ṅ',
			['จ']='c', ['ฉ']='ch', ['ช']='j', ['ฌ']='jh', ['ญ']='ñ', 
			['ฏ']='ṭ', ['ฐ']='ṭh', ['ฑ']='ḍ', ['ฒ']='ḍh', ['ณ']='ṇ', 
			['ต']='t', ['ถ']='th', ['ท']='d', ['ธ']='dh', ['น']='n', 
			['ป']='p', ['ผ']='ph', ['พ']='b', ['ภ']='bh', ['ม']='m',
			['ย']='y', ['ร']='r', ['ล']='l', ['ว']='v', ['ฬ']='ḷ',
			['ศ']='ś', ['ษ']='ṣ', ['ส']='s', ['ห']='h', ['อ'] = '', -- ['อ'] = 'ʼ',

-- Lao
			['ກ']='k', ['ຂ']='kh', ['ຄ']='g', ['ຆ']='gh', ['ງ']='ṅ',
			['ຈ']='c', ['ຉ']='ch', ['ຊ']='j', ['ຌ']='jh', ['ຎ']='ñ', 
			['ຏ']='ṭ', ['ຐ']='ṭh', ['ຑ']='ḍ', ['ຒ']='ḍh', ['ຓ']='ṇ', 
			['ຕ']='t', ['ຖ']='th', ['ທ']='d', ['ຘ']='dh', ['ນ']='n', 
			['ປ']='p', ['ຜ']='ph', ['ພ']='b', ['ຠ']='bh', ['ມ']='m',
			['ຍ']='y', ['ຢ']='y', ['ຣ']='r', ['ລ']='l', ['ວ']='v', ['ຬ']='ḷ',
			['ຨ']='ś', ['ຩ']='ṣ', ['ສ']='s', ['ຫ']='h', ['ອ'] = '', -- ['ອ'] = 'ʼ',
			['ດ']='d',
		}

		local diacritics = {
-- Bengali - only NFC needed
			[dc('কা')]='ā', [dc('কি')]='i', [dc('কী')]='ī', [dc('কু')]='u', [dc('কূ')]='ū', [dc('কৃ')]='ṛ', [dc('কৄ')]='ṝ', 
			[dc('কৢ')]='ḷ', [dc('কৣ')]='ḹ', [dc('কে')]='e', [dc('কৈ')]='ai', [dc('কো')]='o', [dc('কৌ')]='au',  [dc('ক্')]='',
-- Myanmar
			[dc('ကာ')]='ā', [dc('ကါ')]='ā', [dc('ကိ')]='i', [dc('ကီ')]='ī', [dc('ကု')]='u', [dc('ကူ')]='ū',
			[dc('ကၖ')]='ṛ', [dc('ကၗ')]='ṝ',  [dc('ကၘ')]='ḷ', [dc('ကၙ')]='ḹ',
			[dc('ကေ')]='e', [dc('ကဲ')]='ai',
		-- The following are multicharacter!
			[dc('ကော')]='o', [dc('ကော်')]='au',  [dc('က်က္')]='', [dc('ကေါ')]='o', [dc('ကေါ်')]='au',
			[dc('က္')]='',   [dc('က်')]='',
	-- Mon - treatment of Sanskrit au is to be determined!
			[dc('ကဳ')]='ī',
	-- Shan
			[dc('ကႃ')]='ā', [dc('ကေႃ')]='o',
-- Lanna
			[dc('ᨠᩣ')]='ā', [dc('ᨠᩤ')]='ā', [dc('ᨠᩥ')]='i', [dc('ᨠᩦ')]='ī', [dc('ᨠᩩ')]='u', [dc('ᨠᩪ')]='ū',
			['ᩂ']='ṛ', ['ᩄ']='ḷ', -- Syllabic consonants may be very wrong!
			[dc('ᨠᩮ')]='e', [dc('ᨠᩱ')]='ai', [dc('ᨠᩰ')]='o',
    -- The next two rows are are multicharacter!
			[dc('ᨠᩮᩣ')]='o', [dc('ᨠᩮᩢᩣ')]='au', [dc('ᨠᩮᩫᩢᩣ')]='au', [dc('ᨠᩮᩫᩣ')] = 'au',
			[dc('ᨠᩮᩤ')]='o', [dc('ᨠᩮᩢᩤ')]='au', [dc('ᨠᩮᩫᩢᩤ')]='au', [dc('ᨠᩮᩫᩤ')] = 'au',
			[dc('ᨠ᩠')]='', [dc('ᨠ᩺')]='', [dc('ᨠ᩼')]='',
-- Khmer
			[dc('កា')]='ā', [dc('កិ')]='i', [dc('កី')]='ī', [dc('កុ')]='u', [dc('កូ')]='ū',
			[dc('ក្ឫ')]='ṛ', [dc('ក្ឬ')]='ṝ', [dc('ក្ឭ')]='ḷ', [dc('ក្ឮ')]='ḹ', -- Multipart
			[dc('កេ')]='e', [dc('កៃ')]='ai', [dc('កោ')]='o', [dc('កៅ')]='au',  [dc('ក្')]='', [dc('ក៑')]='',
-- Thai
			[dc('กั')]='a', ['า']='ā', [dc('กิ')]='i', [dc('กี')]='ī', [dc('กุ')]='u', [dc('กู')]='ū',
			['ฤ']='ṛ', ['ฤๅ']='ṝ', ['ฦ']='ḷ', ['ฦๅ']='ḹ', -- Multipart
			['เ']='e', ['ไ']='ai', ['โ']='o', ['เา']='au',  [dc('กฺ')]='', [dc('ก์')]='', ['ะ']='a',
			[dc('กึ')]='iṃ', -- Induced by jackbooted I/O
-- Lao
			[dc('ກັ')]='a', ['າ']='ā', [dc('ກິ')]='i', [dc('ກີ')]='ī', [dc('ກຸ')]='u', [dc('ກູ')]='ū',
--			['ฤ']='ṛ', ['ฤๅ')]='ṝ', ['ฦ']='ḷ', ['ฦๅ']='ḹ', -- Multipart
			['ເ']='e', ['ໄ']='ai', ['ໂ']='o', [dc('ເກົາ')]='au',  [dc('ກ຺')]='', [dc('ກ໌')]='',
			['ະ']='a',
			[dc('ກຶ')]='iṃ', -- Induced by jackbooted I/O
-- Results of subscripts - for 2nd level special subscripts.
			['ṭ']='ṭ', ['n']='n', ['p']='p', ['m']='m', 
			['y']='y', ['r']='r', ['l']='l', ['w']='w', ['s']='s', ['h']='h',
		}

		local tt = {
	-- Bengali independent vowels
			['অ']='a', ['আ']='ā', ['ই']='i', ['ঈ']='ī', ['উ']='u', ['ঊ']='ū', ['ঋ']='ṛ', ['ৠ']='ṝ',
			['ঌ']='ḷ', ['ৡ']='ḹ', ['এ']='e', ['ঐ']='ai', ['ও']='o', ['ঔ']='au', 
	-- chandrabindu, anusvara, visarga & avagraha
			[dc('কঁ')]='m̐', [dc('কং')]='ṃ', ['ঃ']='ḥ', ['ঽ']='’',
	--numerals
			['০']='0', ['১']='1', ['২']='2', ['৩']='3', ['৪']='4', ['৫']='5', ['৬']='6', ['৭']='7', ['৮']='8', ['৯']='9',
	-- Myanmar independent vowels
			['အ']='a', ['အာ']='ā', ['ဣ']='i', ['ဤ']='ī', ['ဥ']='u', ['ဦ']='ū', ['ၒ']='ṛ', ['ၓ']='ṝ',
			['ၔ']='ḷ', ['ၕ']='ḹ', ['ဧ']='e', ['အဲ']='ai', ['ဩ']='o', ['ဪ']='au', -- 2 of these are multi-character keys!
		-- Mon
			['ဣဳ'] = 'ī', ['ဥု'] = 'ū', ['ဨ'] = 'e',
		-- Shan
			['ဢ'] = 'a', ['ဢႃ'] = 'ā', ['ဢိ'] = 'i', ['ဢီ'] = 'ī', ['ဢု'] = 'u', ['ဢူ'] = 'ū',
			['ဢေ'] = 'e', ['ဢေႃ'] = 'o', ['ဢဲ'] = 'ai', ['ဢော်'] = 'au',
	-- chandrabindu, anusvara, visarga & avagraha
--			[dc('က')]='m̐', 
			[dc('ကံ')]='ṃ', ['း']='ḥ',
--  		['']='’',
	--numerals
			['၀']='0', ['၁']='1', ['၂']='2', ['၃']='3', ['၄']='4', ['၅']='5', ['၆']='6', ['၇']='7', ['၈']='8', ['၉']='9',
	-- Lanna independent vowels
			['ᩋ']='a', ['ᩋᩣ']='ā', ['ᩍ']='i', ['ᩎ']='ī', ['ᩏ']='u', ['ᩐ']='ū', ['ᩂ']='ṛ', -- ['']='ṝ',
			['ᩄ']='ḷ',
--			['']='ḹ',
			['ᩑ']='e', ['ᩒ']='o', ['ᩋᩰ'] = 'o', ['ᩋᩮᩣ']='o', ['ᩐᩣ'] = 'au', ['ᩋᩱ'] = 'ai',
--			['']='ai', ['']='au', 
	-- chandrabindu, anusvara, visarga & avagraha
--			[dc('')]='m̐',
			[dc('ᨠᩴ')]='ṃ', ['ᩡ']='ḥ', [dc('ᨠᩘ')]='ṅ',
--			['']='’',
	--numerals
			['᪀']='0', ['᪁']='1', ['᪂']='2', ['᪃']='3', ['᪄']='4', ['᪅']='5', ['᪆']='6', ['᪇']='7', ['᪈']='8', ['᪉']='9',
			['᪐']='0', ['᪑']='1', ['᪒']='2', ['᪓']='3', ['᪔']='4', ['᪕']='5', ['᪖']='6', ['᪗']='7', ['᪘']='8', ['᪙']='9',
	-- Khmer independent vowels
			['អ']='a', ['អា']='ā', ['ឥ']='i', ['ឦ']='ī', ['ឧ']='u', ['ឨ']='ū', ['ឫ']='ṛ', ['ឬ']='ṝ',
			['ឭ']='ḷ', ['ឮ']='ḹ', ['ឯ']='e', ['ឰ']='ai', ['ឱ']='o', ['ឲ']='o', ['ឳ']='au', 
	-- chandrabindu, anusvara, visarga & avagraha
--			[dc('ក')]='m̐',
			[dc('កំ')]='ṃ', ['ះ']='ḥ',
--			['']='’',
	--numerals
			['០']='0', ['១']='1', ['២']='2', ['៣']='3', ['៤']='4', ['៥']='5', ['៦']='6', ['៧']='7', ['៨']='8', ['៩']='9',
			['៰']='0', ['៱']='1', ['៲']='2', ['៳']='3', ['៴']='4', ['៵']='5', ['៶']='6', ['៷']='7', ['៸']='8', ['៹']='9',
-- Thai miscellanea
	-- independent vowels
			['ฤ']='ṛ', ['ฤๅ']='ṝ', ['ฦ']='ḷ', ['ฦๅ']='ḹ',
	-- chandrabindu, anusvara, visarga & avagraha
--			[dc('ក')]='m̐',
			[dc('กํ')]='ṃ', ['ะ']='ḥ',
--			['']='’',
	--numerals
			['๐']='0', ['๑']='1', ['๒']='2', ['๓']='3', ['๔']='4', ['๕']='5', ['๖']='6', ['๗']='7', ['๘']='8', ['๙']='9',
-- Lao miscellanea
	-- chandrabindu, anusvara, visarga & avagraha
--			[dc('ក')]='m̐',
			[dc('ກໍ')]='ṃ', ['ະ']='ḥ',
--			['']='’',
	--numerals
			['໐']='0', ['໑']='1', ['໒']='2', ['໓']='3', ['໔']='4', ['໕']='5', ['໖']='6', ['໗']='7', ['໘']='8', ['໙']='9',
-- All scripts
	--punctuation        
    		['॥']='.', ['။']='.', ['᪩']='.', ['᪫']='.', ['៕']='.', ['๚']='.', --double danda
			['।']='.', ['၊']='.', ['‌᪨']='.', ['᪪']='.', ['។']='.', ['ฯ']='.', ['ຯ']='.', --danda
    --Vedic extensions
    		['ᳵ']='x', ['ᳶ']='f',
    --Om
--  		['ॐ']='oṃ',
    --reconstructed
    		['*'] = '',
		}
    -- Also handle subscript consonants encoded as marks.
		local S =	dc('ကျကြကွကှကၞကၟကၠ').. -- Myanmar subscripts
					dc('ᨠᩕᨠᩖᨠᩛᨠᩜᨠᩝᨠᩞ')     -- Lanna subscripts
    -- consonants and part 1 of NFC-multi-part independent vowels.
		local C =	'[কখগঘঙচছজঝঞটঠডঢণতথদধনপফবভমযরলवळশষসহৰৱ'.. -- Bengali
					'ကခဂဃငစဆဇဈဉဋဌဍဎဏတထဒဓနပဖဗဘမယရလဝဠၐၑသဟညဿအ'.. -- Myanmar Part 1
  				'ၚၛၵၶၷꧠၸꧡၹꧢၺꩦꩧꩨꩩꧣၻꩪၼၽၿꧤꩮႁဢဣဥ'.. -- Myanmar Part 2 (Mon and Shan)
				'ᨠᨡᨣᨥᨦᨧᨨᨩᨫᨬᨭᨮᨯᨰᨱᨲᨳᨴᨵᨶᨷᨸᨹᨻᨽᨾᨿᩁᩃᩅᩊᩆᩇᩈᩉᩔᩋᩐ'.. -- Lanna
				'កខគឃងចឆជឈញដឋឌឍណតថទធនបផពភមយរលវឡឝសឞហអ'.. -- Khmer
				'กขคฆงจฉชฌญฏฐฑฒณตถทธนปผพภมยรลวศษสหฬอฤฦ'.. -- Thai.
				'ກຂຄຆງຈຉຊຌຎຏຐຑຒຓຕຖທຘນປຜພຠມຍຢຣລວຨຩສຫຬອ'.. -- Lao
				S..']['..u(0x09bc, 0x200d)..']?' -- And allow Bengali nukta or necessary ZWJ.

-- One character diacritics 
		local dia = 
			dc('[কাকিকীকুকূকৃকৄকৢকৣকেকৈকোকৌক্'.. -- Bengali
				'ကာကါကိကီကုကူကၖကၗကၘကၙကေကဲက္က်ကဳကႃ'.. -- Myanmar
				'ᨠᩣᨠᩤᨠᩥᨠᩦᨠᩩᨠᩪᩂᩄᨠᩮᨠᩱᨠᩰᨠ᩠ᨠ᩺ᨠ᩼'.. -- Lanna
				'ᨠᩫᩢ'..           -- Lanna diacritics in second or third place.
				'កាកិកីកុកូកេកៃកោកៅក្ក៑'.. -- Khmer
				'กักุิกูีเโไาๅฤฦกฺกึก์'.. -- Thai
				'ກັກຸິກູີເກົາໂໄກ຺ກຶກ໌'.. -- Lao
			']')
		local diax = {}
		local ti = table.insert;
		ti(diax, '(')
		ti(diax, dia) ti(diax, '?')
		ti(diax, dia) ti(diax, '?')
		ti(diax, dia) ti(diax, '?')
		ti(diax, dia) ti(diax, '?)')
		diax = table.concat(diax)
		local explicit = nil
		if options and options.impl then
			if options.impl == 'yes' then
				explicit = false
			elseif options.impl == 'no' then
				explicit = true
			end
		end
		if sc == 'Khmr' then
			dep_liquid = '('..C..dc(')(ក្)')..'([ឫឬឭឮ])'; -- Avoid gsub in gsub bug.
			text = gsub(
				text, dep_liquid,
				function(c, j, d) return consonants[c]..d end
			)
-- Regularise robat
			robat_fix3 = '('..C..dc('ក្')..C..dc('ក្')..C..')('..dc('ក៌)')
			robat_fix2 = '('..C..dc('ក្')..C..')('..dc('ក៌)')
			robat_fix1 = '('..C..')('..dc('ក៌)')
			derobatted = 'រ្'..'%1'
			text = gsub(text, robat_fix3, derobatted)
			text = gsub(text, robat_fix2, derobatted)
			text = gsub(text, robat_fix1, derobatted)
		elseif sc == 'Thai' or sc == 'Laoo' then
			local match = mw.ustring.match
			local v1 = dc('[กัກັ]')
			local v2 = dc('[กัะກັະ]')
			local va = dc('[กฺ]')
			if lang == 'sa' then
				if match(text, v1) then explicit = true end -- SARA A is visarga!
			else
				if match(text, v2) then explicit = true end
			end
			local yLao, nuktaed
			if sc == 'Laoo' then
				if options and options.y then
					if options.y == 'yaa' or options.y == 'ຢ' then
						yLao = 'yaa'
					elseif options.y == 'yung' or options.y == 'ຍ' then
						yLao = 'yung'
					end
				end
				if not yLao then
					if match(text, 'ຢ') then
						yLao = 'yaa'
					else
						yLao = 'yung'
					end
				end
				if explicit then
					nuktaed = match(text, u(0xeba))
				else
					local str
					if lang == 'sa' then
						str = dc('ກ຺[ກັາກຸິກູີ]')
					else
						str = dc('ກ຺[ກັາກຸິກູີະ]')
					end
					nuktaed = match(text, str)
				end
				if nuktaed then -- Convert to extended alphabet
					rs = {
							["ຄ຺"] = "ຆ", ["ສ຺"] = "ຉ", ["ຊ຺"] = "ຌ", ["ຍ຺"] = "ຎ",
							["ຕ຺"] = "ຏ", ["ຖ຺"] = "ຐ", ["ດ"] = "ຑ", ["ນ຺"] = "ຓ",
							["ທ຺"] = "ຘ", ["ພ຺"] = "ຠ", ["ລ຺"] = "ຬ", ["ງ຺"] = dc("ໍກ"),
						}
					text = gsub(text, '[ຄສຊຍຕຖດນທພລງ]'..u(0xeba)..'?', rs)
					explicit = true
				end
				if yLao == 'yaa' then text = gsub(text, 'ຍ', 'ຎ') end
			end
			if match(text, va) then explicit = false end
			if explicit == nil then
-- It looks as though gsub (from dc()) and match interfere, so need local variables.
				local ngf1=dc('[กักิกุກັກິກຸ][งງ]$')
				local ngf2=dc('[กักิกุກັກິກຸ][งງ] ')
				if (match(text, ngf1) or match(text, ngf2)) then explicit = true end
			end
			if not explicit then
				diax = gsub(diax, '[ฤฦ]', 'า') -- Treat as ฤ and ฦ consonants.
				local search = '([เโไເໂໄ])('..C..')(['..u(0x0e3a, 0xeba)..'])'
				local longswap = function(p, c, v) return c..v..p end 
				text = gsub(text, search, longswap)
				text = gsub(text, search, longswap)
			end
			if false and sc == 'Laoo' then -- Keep around for future debugging
				local nr = 'F'
				if nuktaed then nr = 'T' end
				if yLao then
					nr = nr .. yLao
				else
					nr = nr .. 'y?'
				end
				nr = nr .. '-'
				if not options or not options.impl then
					if explicit == nil then
						text = 'GN-'..nr..text
					elseif explicit == false then
						text = 'GI-'..nr..text
					else
						text = 'GE-'..nr..text
					end
				elseif options.impl == 'both' then
					if explicit == nil then
						text = 'N-'..nr..text
					elseif explicit == false then
						text = 'I-'..nr..text
					else
						text = 'E-'..nr..text
					end
				elseif options.impl == 'yes' then
					text = 'Y-'..nr..text
				elseif options.impl == 'no' then
					text = 'N-'..nr..text
				elseif options.impl then
					text = options.impl .. nr .. text
				end
			end
			local pair = '([เโไເໂໄ])('..C..')'
			text = gsub(text, pair, '%2%1')
			if explicit and lang ~= 'sa' then -- SARA A is a vowel.
				diax = '([ะະ'..string.sub(diax,3)
			end
			if explicit and sc == 'Laoo' then -- Clean up clusters
				ass = {
						["ກຄ"] = "ຄຄ", ["ດຈ"] = "ຈຈ", ["ດຊ"] = "ຊຊ", 
						["ດຕ"] = "ຕຕ", ["ດຖ"] = "ຕຖ", ["ດທ"] = "ທທ", ["ດສ"] = "ສສ",
						["ຍຈ"] = "ຎຈ", ["ຍສ"] = "ຎຉ", ["ຍຊ"] = "ຎຊ",
						["ນຈ"] = "ນຈ", ["ນສ"] = "ຎຉ", ["ນຊ"] = "ຎຊ", ["ນຍ"] = "ຎຎ",
						["ບປ"] = "ປປ", ["ບຜ"] = "ປຜ", ["ບພ"] = "ພພ", ["ບ"] = "ປ",
					}
				text = gsub(text, '[ກດບຍນ][ຄຕຖທປຜພສລຈສຊຍ]?', ass)
			end
		end
		if sc == 'Lana' then
-- Disambiguate lanna combining loop below.
			cl_search = dc('[ᨲᨻᨾ]ᨠᩛ')
			text = gsub(text, cl_search,
				{['ᨲᩛ']='ᨲ᩠ᨳ', ['ᨻᩛ']='ᨻ᩠ᨻ', ['ᨾᩛ']='ᨾ᩠ᨻ'})  
		end
		if sc == 'Mymr' or sc == 'Lana' then
			local fn = function(c, d) return consonants[c]..d end
			local search = '('..C..')(['..S..'])'
			text = gsub(text, search, fn);
			text = gsub(text, search, fn); -- and again
		end
		if sc == 'Beng' then
-- Aberrant conversion:
			text = gsub(text, u(0x09b2, 0x9cd, 0x9bc, 0x9cd, 0x9b9), 'ḷহ') -- raw
			text = gsub(text, u(0x09b2, 0x9bc, 0x9cd, 0x9cd, 0x9b9), 'ḷহ') -- NFC
-- Proper conversion:
			text = gsub(text, u(0x09b2, 0x9cd, 0x9bc, 0x9b9), 'ḷহ') -- not NFC
--			text = gsub(text, u(0x09b2, 0x9bc, 0x9cd, 0x9b9), 'ḷহ') -- NFC
		end
		text = gsub(text, '('..C..')'..diax,
			function(c, d)
				local val = tt[c..d]
				if val then return val end
				local cn = consonants[c]
				if not cn then return 'X('..c..')' end
				if d ~= "" then        
					return cn .. (diacritics[d] or 'NIL('..d..')')
				elseif explicit then
					return cn
				else
					return cn .. 'a'
				end
			end
		)
		text = gsub(text, '.', tt)
-- Bodge alphabetic Thai and Lao anusvara
		if explicit and text then
			text = gsub(text, 'ṅ$', 'ṃ')
			text = gsub(text, 'ṅ([^kg])', 'ṃ%1')
		end
	else	
		text = nil -- Not ready for use yet!
	end
	return text
end

function export.tr(text, lang, sc)
	return export.trwo(text, lang, sc, {})
end

return export