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Module:ta-translit

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This module will transliterate Tamil language text. It is also used to transliterate Irula, Kota (India), Mannan, and Betta Kurumba. 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:ta-translit/testcases.

Functions

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 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']='ks' , ['ஃக ']='x',
	['ஃ']='ḥ' , ['ௐ']='о̄m',
}

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' , ['ௐ']='о̄m',
	-- other symbols
--	['ஃ']='' , ['ௐ']='о̄m',
}

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

	text = mw.ustring.gsub(text, '^’', '')
	text = mw.ustring.gsub(text, '([%s%p])’', '%1')
	
	return text
end
 
return export