Modül:ne-alfabeçeviri

-- Transliteration for Nepali

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

local conv = {
	-- consonants
	 = 'k',  = 'kh',  = 'g',  = 'gh',  = 'ṅ', 
	 = 'c',  = 'ch',  = 'j',  = 'jh',  = 'ñ', 
	 = 'ṭ',  = 'ṭh',  = 'ḍ',  = 'ḍh',  = 'ṇ',
	 = 't',  = 'th',  = 'd',  = 'dh',  = 'n',
	 = 'p',  = 'ph',  = 'b',  = 'bh',  = 'm', 
	 = 'y',  = 'r',  = 'l',  = 'w',  = 'ḷ',
	 = 'ś',  = 'ṣ',  = 's',  = 'h',
	 = 'q',  = 'x',  = 'ġ',  = 'v',  = 'ḻ',
	 = 'z',  = 'ž',  = 'ṛ',  = 'ṛh',
	 = 'f',  = 'θ',  = 'ṉ',  = 'ṟ', 
	 = "'",

	-- vowel diacritics
	 = 'i',  = 'u',  = 'e',  = 'o', 
	 = 'ā',  = 'ī',  = 'ū', 
	 = 'ŕ',
	 = 'ai',  = 'au',
	 = 'ŏ',
	 = 'ĕ',

	-- vowel signs
	 = 'a',  = 'i',  = 'u',  = 'e',  = 'o',
	 = 'ā',  = 'ī',  = 'ū', 
	 = 'ŕ', 
	 = 'ai',  = 'au', 
	 = 'ŏ',
	 = 'ĕ',
	
	-- chandrabindu
	 = '̃',
	
	-- anusvara
	 = '̃',
	
	-- visarga
	 = 'ḥ',
	
	-- virama
	 = '',

	-- om
	 = 'oṁ',

	-- numerals
	 = '0',  = '1',  = '2',  = '3',  = '4',  = '5',  = '6',  = '7',  = '8',  = '9',
	
	-- punctuation
	 = '.', -- danda
	 = '', -- compound separator
}

local all_cons, special_cons = 'कखगघङचछजझञटठडढतथदधपफबभशषसयरलवहणनम', 'यरलवहनम'
local vowel = 'aिुृेोाीूैौॉॅ'

function export.tr(text, lang, sc, reduction)
	text = gsub(
		text,
		'(़?)(?)',
		function(c, d)
			return c .. ( d == "" and 'a' or d )
		end
	)
	if reduction and not match(text, "") then
		for word in mw.ustring.gmatch(text, "+") do
			text = gsub(text, word, "<" .. word .. ">")
		end
	end
	for word in mw.ustring.gmatch(text, "<+>") do
		local orig_word = word
		word = gsub(word, "", "")
		word = gsub(
			word,
			'(.?)(.)()(़?)a$',
			function(pre, first, second, opt)
				local last = ""
				if match(second, '') and match(first, '्') or
					match(second .. first, 'य') or
					pre == second and first == "्" then
						last =  'a'
				end
				return pre .. first .. second .. opt .. last
			end
		)
		text = gsub(text, orig_word, word)
	end
	text = gsub(text, ".़?", conv)
	text = gsub(text, "", "")
	return mw.ustring.toNFC(text)
end

return export