-- Transliteration for Nepali
local export = {}
local gsub = mw.ustring.gsub
local match = mw.ustring.match
local conv = {
-- consonants
['क'] = 'k', ['ख'] = 'kh', ['ग'] = 'g', ['घ'] = 'gh', ['ङ'] = 'ṅ',
['च'] = 'c', ['छ'] = 'ch', ['ज'] = 'j', ['झ'] = 'jh', ['ञ'] = 'ñ',
['ट'] = 'ṭ', ['ठ'] = 'ṭh', ['ड'] = 'ḍ', ['ढ'] = 'ḍh', ['ण'] = 'ṇ',
['त'] = 't', ['थ'] = 'th', ['द'] = 'd', ['ध'] = 'dh', ['न'] = 'n',
['प'] = 'p', ['फ'] = 'ph', ['ब'] = 'b', ['भ'] = 'bh', ['म'] = 'm',
['य'] = 'y', ['र'] = 'r', ['ल'] = 'l', ['व'] = 'w',
['श'] = 'ś', ['ष'] = 'ṣ', ['स'] = 's', ['ह'] = 'h',
['क़'] = 'q', ['ख़'] = 'x', ['ग़'] = 'ġ', ['ऴ'] = 'ḻ',
['ळ'] = 'ḷ', ['ज़'] = 'z', ['श़'] = 'ž', ['झ़'] = 'ž',
['ड़'] = 'ṛ', ['ढ़'] = 'ṛh', ['फ़'] = 'f', ['थ़'] = 'θ',
['द़'] = 'ð', ['ऩ'] = 'ṉ', ['ऱ'] = 'ṟ', ['ॽ'] = "'",
['व़'] = 'V', ['ॹ'] = 'ž',
-- vowel diacritics
['ि'] = 'i', ['ु'] = 'u', ['े'] = 'e', ['ो'] = 'o', ['ा'] = 'ā', ['ी'] = 'ī', ['ू'] = 'ū', ['ृ'] = 'r̥',
['ॄ'] = 'r̥̄', ['ॢ'] = 'l̥', ['ॣ'] = 'l̥̄', ['ै'] = 'ai', ['ौ'] = 'au', ['ॉ'] = 'ŏ', ['ॅ'] = 'ĕ',
-- vowel signs
['अ'] = 'a', ['इ'] = 'i', ['उ'] = 'u', ['ए'] = 'e', ['ओ'] = 'o', ['आ'] = 'ā', ['ई'] = 'ī', ['ऊ'] = 'ū',
['ऋ'] = 'r̥', ['ॠ'] = 'r̥̄', ['ऌ'] = 'l̥', ['ॡ'] = 'l̥̄', ['ऐ'] = 'ai', ['औ'] = 'au', ['ऑ'] = 'ŏ',
['ॲ'] = 'ĕ', ['ऍ'] = 'ĕ',
-- chandrabindu
['ँ'] = '̃',
-- anusvara
['ं'] = '̃',
-- visarga
['ः'] = 'ḥ',
-- virama
['्'] = '',
-- om
['ॐ'] = 'om̐',
-- zero-width non joiner
[''] = '',
-- zero-width joiner
[''] = 'a',
-- numerals
['०'] = '0', ['१'] = '1', ['२'] = '2', ['३'] = '3', ['४'] = '4', ['५'] = '5', ['६'] = '6', ['७'] = '7',
['८'] = '8', ['९'] = '9',
-- punctuation
['।'] = '.', -- danda
['॥'] = '.', -- double danda
['+'] = '', -- compound separator
-- abbreviation sign
['॰'] = '.',
}
local nasal_assim = {
['क'] = 'ङ', ['ख'] = 'ङ', ['ग'] = 'ङ', ['घ'] = 'ङ',
['च'] = 'ञ', ['छ'] = 'ञ', ['ज'] = 'ञ', ['झ'] = 'ञ',
['ट'] = 'ण', ['ठ'] = 'ण', ['ड'] = 'ण', ['ढ'] = 'ण',
['प'] = 'म', ['फ'] = 'म', ['ब'] = 'म', ['भ'] = 'म', ['म'] = 'म',
['त'] = 'न', ['थ'] = 'न', ['द'] = 'न', ['ध'] = 'न', ['न'] = 'न', ['ष'] = 'न', ['श'] = 'ङ',
['स'] = 'न',
['य'] = 'म', ['र'] = 'म', ['ल'] = 'ँ', ['व'] = 'म', ['ह'] = 'ङ',
}
local perm_cl = {
['ज्न'] = true, ['ज्ञ'] = true, ['ट्र'] = true, ['ड्र'] = true, ['ट्स'] = true,
['ड्स'] = true, ['स्ड'] = true
}
local all_cons, special_cons = 'कखगघङचछजझञटठडढणतथदधनपफबभमयरलवसशषह'
, 'कखगघचछजझटठडढणतथदधनपफबभमयरलवशषसह'
local vowel, vowel_sign = 'aिुृेोाीूैौॉॅॆॊॄॢॣ', 'अइउएओआईऊऋॠॡऌऐऔऑऍ'
local syncope_pattern = '(़?[' ..
all_cons ..
'])([ंँ]?[' ..
vowel ..
vowel_sign ..
'])(़?[' ..
all_cons ..
'])([ंँ]?[' ..
vowel ..
vowel_sign ..
'])(़?[' ..
all_cons ..
'])a(़?[' ..
all_cons .. '])([ंँ]?[' .. vowel .. vowel_sign .. '])(़?[' ..
all_cons .. '])([ंँ]?[' .. vowel .. vowel_sign .. '])'
local nor_cons, sp_cons = 'कखगघङचछजझञटठडढतथदधपफबभशषसयरलवणनमयरलवनम'
, 'कलम'
local vowel, vowel_sign = 'aिुृेोाीूैौॉॅॆॊॄॢॣ', 'अइउएओआईऊऋॠॡऌऐऔऑऍ'
local koka_sign = 'ोीाैे'
local koka_pattern = '([' ..
koka_sign .. '])(़?[' .. sp_cons .. '])a(़?[' ..
gsub(nor_cons, "य", "") .. '])([ंँ]?[' .. vowel .. vowel_sign .. '])'
local function rev_string(text)
local result, length = {}, mw.ustring.len(text)
for i = length, 1, -1 do
table.insert(result, mw.ustring.sub(text, i, i))
end
return table.concat(result)
end
function export.tr(text, lang, sc)
text = gsub(text, '([' .. all_cons .. ']़?)([' .. vowel .. '्]?)', function(c, d)
return c .. (d == "" and 'a' or d)
end)
for word in mw.ustring.gmatch(text, "[ऀ-ॿa]+") do
local orig_word = word
word = rev_string(word)
word = gsub(word, '^a(़?)([' .. all_cons .. '])(.)(.?)', function(opt, first, second, third)
return (((match(first, '[' .. special_cons .. ']') and match(second, 'ं')
or match(first, '[' .. special_cons .. ']') and match(second, '्') and not perm_cl[first .. second .. third])
or match(first .. second, 'य[aिुृेोाीूैौॉॅॆॊआईउऊइएऐओऔ]') or
match(first .. second, 'ह[अaिुृेोाीूैौॉॅॆॊआईउऊइएऐओऔ]'))
and 'a' or "") .. opt .. first .. second .. third
end)
while match(word, syncope_pattern) do
word = gsub(word, syncope_pattern, '%1%2%3%4%5%6%7%8%9')
end
while match(word, koka_pattern) do
word = gsub(word, koka_pattern, '%1%2%3%4')
end
word = gsub(word, '(.?)ं(.)', function(succ, prev)
return succ .. (succ .. prev == "a" and "्म" or
(succ == "" and match(prev, '[' .. vowel .. ']') and "̃" or nasal_assim[succ] or "ṃ")) .. prev
end)
local escaped_orig_word = gsub(orig_word, "%+", "")
text = gsub(text, orig_word, rev_string(word))
text = gsub(text, 'ईन$', 'īna')
text = gsub(text, '(...)ईन ', '%1īna ')
text = gsub(text, 'इन$', 'ina')
text = gsub(text, '(...)इन ', '%1ina ')
text = gsub(text, 'ैन$', 'aina')
text = gsub(text, '(...)ैैैैन ', '%1aina ')
text = gsub(text, 'उन$', 'una')
text = gsub(text, '(...)उन ', '%1una ')
text = gsub(text, 'िन$', 'ina')
text = gsub(text, '(...)िन ', '%1ina ')
text = gsub(text, 'िछ$', 'icha')
text = gsub(text, '(...)िछ ', '%1icha ')
text = gsub(text, 'उछ$', 'ucha')
text = gsub(text, '(...)उछ ', '%1ucha ')
text = gsub(text, 'इछ$', 'icha')
text = gsub(text, '(...)इछ ', '%1icha ')
text = gsub(text, 'एछ$', 'echa')
text = gsub(text, 'ेछ$', 'echa')
text = gsub(text, '(...)ेछ ', '%1echa ')
text = gsub(text, '(...)ेन ', '%1ena ')
text = gsub(text, 'ेन$', 'ena')
text = gsub(text, '(...)एन ', '%1ena ')
text = gsub(text, 'एर$', 'era')
text = gsub(text, '(...)एर ', '%1era ')
text = gsub(text, 'ेर$', 'era')
text = gsub(text, '(...)ेर ', '%1era ')
text = gsub(text, 'एन$', 'ena')
text = gsub(text, 'उँछ$', 'ũcha')
text = gsub(text, '(...)उँछ ', '%1ucha ')
text = gsub(text, 'बाट$', 'bāṭa')
text = gsub(text, '(...)बाट ', '%1bāṭa ')
text = gsub(text, 'ज्ञ', 'gy')
end
text = gsub(text, '.़?', conv)
text = gsub(text, 'a([iu])̃', 'a͠%1')
text = gsub(text, "[<>]", "")
text = gsub(text, "ॱ", "")
text = gsub(text, 'dach$', 'dacha')
text = gsub(text, '(...)dach ', '%1dacha ')
text = gsub(text, 'ain$', 'aina')
text = gsub(text, '(...)ain ', '%1aina ')
text = gsub(text, 'nach$', 'nacha')
text = gsub(text, '(...)nach ', '%1nacha ')
text = gsub(text, 'wai', 'vai')
text = gsub(text, 'w$', 'v')
text = gsub(text, '(...)w ', '%1v ')
text = gsub(text, '([raäāiīuūeo])([r])w', '%1rv')
text = gsub(text, 'w([iīewoyr̥l̥l̥̄r̥̄])', 'v%1')
text = gsub(text, '([w])a([krjtcṅñysśdphṇn])([tnrṇṣcśkghjsueoayd])', 'va%2%3')
text = gsub(text, '([w])ā([cgjṇtdmyshśṣn])', 'vā%2')
text = gsub(text, '([w])ā([r])([tdābuṇṣh])', 'vā%2%3')
text = gsub(text, '([w])ā([l])([m])', 'vā%2%3')
text = gsub(text, '([w])a([sśṣṅñṃypdtnc])', 'va%2')
text = gsub(text, 'rh̥', 'hr̥')
---text = gsub(text, 'kṣ', 'ch̥')
text = gsub(text, 'ahar([uū])', 'har%1')
text = gsub(text, 'abāṭa', 'bāṭa')
text = gsub(text, 'kan$', 'kana')
text = gsub(text, '(...)kan ', '%1kana ')
text = gsub(text, '([ptkbdgṭṇñḍmṅnlrwyhṣśs])([ptkbdgṭḍmṇñnlrwyṣśs])har([uū])', '%1%2ahar%3')
text = gsub(text, '([ptkbdgṭṇñḍmṅnlrwyhṣśs])([ptkbdgṭḍmṇñnlrwyṣśs])bāṭa', '%1%2abāṭa')
text = gsub(text, '([ptkbdgṭḍmṅṇñnlrwyhṣśs])([ptkbdgṭḍmnlrṇñwyś])([mlk])', '%1%2a%3')
text = gsub(text, 'ñz', 'nz')
text = gsub(text, 'ñgy', 'ṅgy')
text = gsub(text, '([a])(̃)l([a])', '%1ml%3') -- assim case l
text = gsub(text, '([eāuūiīo])([īuiū])m([m])', '%1%2ṃ%3') -- assim case m
text = gsub(text, '([a])([īuiū])m([m])', '%1͠%2%3') -- assim case m2
text = gsub(text, '([eāuūiīo])([īuiū])n([st])', '%1%2ṃ%3') -- assim case s
text = gsub(text, '([a])([īuiū])n([st])', '%1͠%2%3') -- assim case s2
text = gsub(text, '([a])([uū])ṅ([hk])', '%1͠%2%3') -- assim case kh
text = gsub(text, '([eāuūiīo])([īuiū])ṅ([kh])', '%1%2ṃ%3') -- assim case kh2
return mw.ustring.toNFC(text)
end
return export
