Module:ta-translit

Documentation for this module may be created at Module:ta-translit/doc

local export = {}
 
local consonants = {
	['க']='k' , ['ங']='ṅ' , ['ச']='c' , ['ஞ']='ñ' , ['ட']='ṭ' , ['ண']='ṇ' , ['த']='t' ,
	['ந']='n' , ['ப']='p', ['ம']='m' , ['ய']='y' , ['ர']='r' , ['ல']='l' , ['வ']='v' ,
	['ழ']='ḻ' , ['ள']='ḷ' , ['ற']='ṟ' , ['ன']='ṉ' , ['ஶ']='ś' , ['ஜ']='j' , ['ஷ']='ṣ' , 
	['ஸ']='s' , ['ஹ']='h' , ['ஃப']='f' , ['ஃஜ']='z' , ['ஃஸ']='x' ,
	['ஃ']='ḥ' ,
}

local diacritics = {
	['ா']= 'ā' , ['ி']='i' , ['ீ']='ī' , ['ு']='u' , ['ூ']='ū' ,  ['ெ']='e' ,
	['ே']='ē' , ['ை']='ai' , ['ொ']='o' , ['ோ']='ō' , ['ௌ']='au'  ,
	['்']='',	--halant, supresses the inherent vowel "a"
	-- no diacritic
	[''] = 'a'
}

local nonconsonants = {
	-- vowels
	['அ']='a' , ['ஆ']='ā' , ['இ']='i' , ['ஈ']='ī' , ['உ']='u' , ['ஊ']='ū' , 
	['எ']='e' , ['ஏ']='ē' , ['ஐ']='ai' , ['ஒ']='o' , ['ஓ']='ō' , ['ஔ']='au' , 
	-- other symbols
--	['ஃ']='' ,
}

-- translit any words or phrases
function export.tr(text, lang, sc)
	text = mw.ustring.gsub(
		text,
		'(ஃ?)([கஙசஞடணதநபமயரலவழளறனஶஜஷஸஹ])'..
		'([ாிீுூெேைொோௌ்]?)',
		function(h, c, d)
			return (consonants[h..c] or consonants[h] .. (consonants[c] or c)) .. diacritics[d]
		end)
	
	text = mw.ustring.gsub(text, '.', nonconsonants)
	
	return text
end
 
return export