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| local diacritics = { | | local diacritics = { |
| ['ा']='ā', ['ि']='i', ['ी']='ī', ['ु']='u', ['ू']='ū', ['ृ']='ṛ', ['ॄ']='ṝ', | | ['ा']='ā', |
| ['ॢ']='ḷ', ['ॣ']='ḹ', ['े']='e', ['ै']='ai', ['ो']='o', ['ौ']='au', ['्']='', | | ['ि']='i', |
| | ['ी']='ī', |
| | ['ु']='u', |
| | ['ू']='ū', |
| | ['ॆ']='ei', |
| | ['े']='ēi', |
| | ['ॅ']='e', |
| | ['ै']='ē', |
| | ['ॊ']='ou', |
| | ['ो']='ōu', |
| | ['ॉ']='o', |
| | ['ौ']='ō', |
| | ['्']='', |
| | ['॔']='́', |
| | ['॓']='́', |
| } | | } |
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| return nil | | return nil |
| end | | end |
|
| |
| -- Vedic accent handling
| |
| if text:match(anud) or text:match(svar) or text:match(d_svar) then
| |
| -- insert 'a' after consonants without vowel diacritic or virama
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| text = gsub(text, '([क-ह])([ा-्ॢॣ]?)',
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| function(c,d)
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| if d == "" then return c .. 'a' else return c .. d end
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| end)
| |
| local vow_list = "aअ-औा-ौॠ-ॣ"
| |
| local vow = "[" .. vow_list .. "]"
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| local extra_list = "ःंँ" -- visarga, anusvara, candrabindu
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| local extra = "[" .. extra_list .. "]"
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| local acc_list = grave .. acute .. svar .. anud .. d_svar
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| -- local cons_list = "क-हᳵᳶऽ् \'" -- consonants + avagraha + virama + space + apostrophe (from e.g. bold formatting)
| |
| -- Workaround: the consonants (plus a few other signs, see outcommented 'local cons_list')
| |
| -- are defined by negating the non-consonants, so as to include
| |
| -- the munged versions of formatting characters (e.g. bold formatting)
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| local cons = "[^" .. vow_list .. acc_list .. extra_list .. "।॥१३ॐ]"
| |
| -- independent svarita before udatta or other independent svarita (indicated by १/३ with both svarita and anudatta sign)
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| text = gsub(text, "(" .. extra .. "?)" .. anud .. "?[१३][" .. anud .. svar .. d_svar .. "]+(" ..
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| cons .. "*" .. vow .. ")(" .. extra .. "?)([" .. svar .. d_svar .. "]?)",
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| function(a,b,c,d)
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| if d ~= "" then
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| return grave .. a .. b .. grave .. c -- 2 × independent svarita
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| else
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| return grave .. a .. b .. acute .. c -- independent svarita + udatta
| |
| end
| |
| end)
| |
| -- optional: a few non-Rigvedic ways to mark the independent svarita (but compatible with Rigvedic system)
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| -- 1) ᳡ (U+1CE1) used by Atharvavedic Śaunakīya Saṃhitā
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| -- 2) ᳖ (U+1CD6) used by Śuklayajurveda Mādhyandina-Saṃhitā for 'standard' independent svarita
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| -- 3) ᳕ (U+1CD5) used by Śuklayajurveda Mādhyandina-Saṃhitā for 'aggravated' independent svarita (before udatta)
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| -- note that the Rigvedic system doesn't distinguish between dependent vs. independendent
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| -- svarita after udatta (the latter needs manual addition of grave `, see documentation)
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| text = gsub(text, "(" .. extra .. "?)[᳡᳖`]", grave .. "%1")
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| text = gsub(text, "(" .. extra .. "?)᳕(" .. cons .. "*" .. vow ..")", grave .. "%1%2" .. acute)
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| -- initial udatta/svarita
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| text = gsub(text, "^(" .. cons .. "*" .. vow .. ")(३?" .. extra .. "?)([^" .. anud .. grave .. extra_list .. "])",
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| function(a,b,c)
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| if c == svar or c == d_svar then
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| return a .. grave .. b -- initial svarita
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| else
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| return a .. acute .. b .. c -- initial udatta
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| end
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| end)
| |
| -- the same, after (double) danda or 'om'
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| text = gsub(text, "([।॥ॐ]" .. cons .. "*" .. vow .. ")(३?" .. extra .. "?)([^" .. anud .. grave .. extra_list .. "])",
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| function(a,b,c)
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| if c == svar or c == d_svar then
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| return a .. grave .. b -- initial svarita
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| else
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| return a .. acute .. b .. c -- initial udatta
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| end
| |
| end)
| |
| -- in case of anudatta sign not before other anudatta sign (nor before grave accent from १/३)
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| text = gsub(text, "(" .. vow .. extra .. "?" .. anud .. cons .. "*" ..
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| vow .. ")(" .. extra .. "?)([^" .. anud .. grave .. extra_list .. "])",
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| function(a,b,c)
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| if c == svar or c == d_svar then
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| return a .. grave .. b -- independent svarita
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| else
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| return a .. acute .. b .. c -- udatta
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| end
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| end)
| |
| -- and again (excluding acute on next vowel), in case of overlapping patterns (if 'c' above happens to be another vowel with anudatta)
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| text = gsub(text, "(" .. vow .. extra .. "?" .. anud .. cons .. "*" ..
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| vow .. ")(" .. extra .. "?)([^" .. anud .. grave .. acute .. extra_list .. "])",
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| function(a,b,c)
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| if c == svar or c == d_svar then
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| return a .. grave .. b -- independent svarita
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| else
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| return a .. acute .. b .. c -- udatta
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| end
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| end)
| |
| -- the same, string final
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| text = gsub(text, "(" .. vow .. extra .. "?" .. anud .. cons .. "*" ..
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| vow .. ")(" .. extra .. "?)([" .. svar .. d_svar .. "]?)$",
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| function(a,b,c)
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| if c ~= "" then
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| return a .. grave .. b -- independent svarita
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| else
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| return a .. acute .. b -- udatta
| |
| end
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| end)
| |
| -- unmarked vowel after udatta is also udatta
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| text = gsub(text, "(" .. vow .. acute .. "३?" .. extra .. "?" .. cons .. "*" ..
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| vow .. ")(" .. extra .. "?[^" .. acc_list .. extra_list .. "])", "%1" .. acute .. "%2")
| |
| -- and again, in case of three udatta's in a row
| |
| text = gsub(text, "(" .. vow .. acute .. "३?" .. extra .. "?" .. cons .. "*" ..
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| vow .. ")(" .. extra .. "?[^" .. acc_list .. extra_list .. "])", "%1" .. acute .. "%2")
| |
| -- yet again: 4 udatta's in a row occurs in RV.1.164.39
| |
| text = gsub(text, "(" .. vow .. acute .. "३?" .. extra .. "?" .. cons .. "*" ..
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| vow .. ")(" .. extra .. "?[^" .. acc_list .. extra_list .. "])", "%1" .. acute .. "%2")
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| -- the same, string final
| |
| text = gsub(text, "(" .. vow .. acute .. "३?" .. extra .. "?" .. cons .. "*" ..
| |
| vow .. ")(" .. extra .. "?)$", "%1" .. acute .. "%2")
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| -- remove remaining anudatta and svarita signs
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| text = gsub(text, "[" .. anud .. svar .. d_svar .. "]", "")
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|
| |
| text = gsub(text, '.', consonants)
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| text = gsub(text, '.', diacritics)
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| else -- no Vedic accents
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| text = gsub(
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| text,
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| '([क-ह])'..
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| '([ािीुूृॄॢॣेैोौ्]?)'..
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| '([अ-औ]?)',
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| function(c, d, e)
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| if d == "" and e ~= "" then
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| if tt[e] == "i" or tt[e] == "u" then return consonants[c] .. 'a' .. tt[e] .. diaeresis
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| else return consonants[c] .. 'a' .. tt[e] end
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| elseif e ~= "" then
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| return consonants[c] .. diacritics[d] .. tt[e]
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| elseif d == "" then
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| return consonants[c] .. 'a'
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| else
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| return consonants[c] .. diacritics[d]
| |
| end
| |
| end)
| |
| end
| |
|
| |
| text = gsub(text, '([aअ][' .. acute .. grave .. ']?[इउ])', '%1' .. diaeresis)
| |
| text = gsub(text, '.', tt)
| |
| text = gsub(text, 'a([iu])([' .. acute .. grave .. '])', 'a%2%1')
| |
| text = gsub(text, " ?[।॥]", ".")
| |
| text = gsub(text, "(ā" .. acute .. "3[iu])" .. acute, "%1") -- for pluti vowels
| |
| text = toNFC(text)
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|
| |
| return text
| |
| end | | end |
|
| |
| return export | | return export |