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Module:gu-translit

Wiktionary වෙතින්

This module will transliterate ගුජරාටි භාෂාව text. It is also used to transliterate Kachchi and Vaghri. The module should preferably not be called directly from templates or other modules. To use it from a template, use {{xlit}}. Within a module, use Module:languages#Language:transliterate.

For testcases, see Module:gu-translit/testcases.

tr(text, lang, sc)
Transliterates a given piece of text written in the script specified by the code sc, and language specified by the code lang.
When the transliteration fails, returns nil.

local export = {}

local gsub = mw.ustring.gsub
local match = mw.ustring.match

local conv = {
	-- consonants
	['ક'] = 'k', ['ખ'] = 'kh', ['ગ'] = 'g', ['ઘ'] = 'gh', ['ઙ'] = 'ṅ',
	['ચ'] = 'c', ['છ'] = 'ch', ['જ'] = 'j', ['ઝ'] = 'jh', ['ઞ'] = 'ñ', 
	['ટ'] = 'ṭ', ['ઠ'] = 'ṭh', ['ડ'] = 'ḍ', ['ઢ'] = 'ḍh', ['ણ'] = 'ṇ', 
	['ત'] = 't', ['થ'] = 'th', ['દ'] = 'd', ['ધ'] = 'dh', ['ન'] = 'n', 
	['પ'] = 'p', ['ફ'] = 'ph', ['બ'] = 'b', ['ભ'] = 'bh', ['મ'] = 'm',
	['ય'] = 'y', ['ર'] = 'r', ['લ'] = 'l', ['વ'] = 'v', ['ળ'] = 'ḷ',
	['શ'] = 'ś', ['ષ'] = 'ṣ', ['સ'] = 's', ['હ'] = 'h',
	['ત઼'] = 't̰', ['જ઼'] = 'z', ['ંઘ઼'] = 'ng', ['ડ઼'] = 'ṛ', ['ઢ઼'] = 'ṛh', ['ન઼'] = 'ṉ', ['ફ઼'] = 'f',

	--vowel diacritics
	['ા'] = 'ā', ['િ'] = 'i', ['ી'] = 'ī', ['ુ'] = 'u', ['ૂ'] = 'ū', ['ૃ'] = 'ṛ', ['ૄ'] = 'ṝ', 
	['ે'] = 'e', ['ૈ'] = 'ai', ['ો'] = 'o', ['ૌ'] = 'au', ['ૅ'] = 'ɛ', ['ૉ'] = 'ɔ',

	-- vowel mātras
	['અ'] = 'a', ['આ'] = 'ā', ['ઇ'] = 'i', ['ઈ'] = 'ī', ['ઉ'] = 'u', ['ઊ'] = 'ū', ['ઋ'] = 'ru', ['ૠ'] = 'ṝ',
	['એ'] = 'e', ['ઐ'] = 'ai', ['ઓ'] = 'o', ['ઔ'] = 'au', ['ઍ'] = 'ɛ', ['ઑ'] = 'ɔ',

	-- chandrabindu    
	['ઁ'] = 'm̐', --until a better method is found

	-- anusvara    
	['ં'] = 'ṃ', --until a better method is found

	-- visarga
	['ઃ'] = 'ḥ',

	-- virama
	['્'] = '', 

	-- avagraha
	['ઽ'] = '’',

	--numerals
	['૦'] = '0', ['૧'] = '1', ['૨'] = '2', ['૩'] = '3', ['૪'] = '4', ['૫'] = '5', ['૬'] = '6', ['૭'] = '7', ['૮'] = '8', ['૯'] = '9',

	--punctuation        
	['।'] = '.', --danda
	['+'] = '', -- compound separator
	
	--om
	['ૐ'] = 'OM',
}

local nasal_assim = {
	["[kg]h?"] = "ṅ",
	["[cj]h?"] = "ñ",
	["[ṭḍṛ]h?"] = "ṇ",
	["[td]h?"] = "n",
	["[pb]h?"] = "m",
	["n"] = "n",
	["m"] = "m",
}

function export.tr(text, lang, sc)
	local c = '([કખગઘઙચછજઝઞટઠડઢતથદધપફબભશષસયરલવહણનમ]઼?)'
	local no_drop = 'ય'
	local final_no_drop = 'યરલવહનમ'
	local v = '([a્ાિીુૂેૈોૌૃૄૅૉ]ઁ?)'
	local virama = '(્)'
	local n = '(ં?)'
	local nukta = '([તજઘડઢનફ]઼)'
	
	local can_drop = gsub(c,"["..no_drop.."]","")
	local final_can_drop = gsub(c,"["..final_no_drop.."]","")
	local no_virama = gsub(v,virama,"")
	
	text = text .. " "
	
	--text = gsub(text,"(%S)"..c.."%2","%1ː%2")
	
	text = gsub(text,c,"%1a")
	text = gsub(text,"a"..v,"%1")
	text = gsub(text,no_virama..n..can_drop.."a ","%1%2%3 ") --ending
	text = gsub(text,virama..n..final_can_drop.."a ","%1%2%3 ") --ending
	local pattern = no_virama..n..can_drop.."a"..c..no_virama
	while match(text,"(.*)"..pattern) do
		text = gsub(text,"(.*)"..pattern,"%1%2%3%4%5%6")
	end
	
	text = gsub(text,nukta,conv)
	text = gsub(text,".",conv)
	
	for key,val in pairs(nasal_assim) do
		text = gsub(text,"([aeiou])ṃ("..key..")", "%1"..val.."%2")
	end
	
	text = gsub(text,"([aiueēoāīū])ṃ", "%1̃")
	
	text = gsub(text,"ː(.)","%1%1")
	
	text = gsub(text," $","")
	
	text = gsub(text,"ā̃tar","āntar")
	
	text = gsub(text,"OM","oṃ")
    text = gsub(text, 'a*%*a*', 'a')
	
	return mw.ustring.toNFC(text)
end

return export
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