Module:User:Erutuon/grc/Latin to Greek

local reorder_diacritics = require("Module:grc-utilities").reorderDiacritics local ustring = mw.ustring local U = ustring.char local ufind = ustring.find local str_gsub = string.gsub

local UTF8_char = "[%z\1-\127\194-\244][\128-\191]*" -- roughly equivalent to "." in Ustring patterns local one_UTF8_char_or_none = "[%z\1-\127\194-\244]?[\128-\191]*" -- roughly equivalent to ".?" in Ustring patterns

local subscript = U(0x345) -- iota subscript (ypogegrammeni) local macron = U(0x304) -- macron local spacing_macron = U(0xAF) local modifier_macron = U(0x2C9) -- modifier letter macron local breve = U(0x306) -- breve local spacing_breve = "˘" -- spacing breve local diaeresis = U(0x308) -- diaeresis local rough = U(0x314) -- rough breathing (reversed comma) local smooth = U(0x313) -- smooth breathing (comma) local acute = U(0x301) -- acute local grave = U(0x300) -- grave local circumflex = U(0x342) -- Greek circumflex (perispomeni) local question_mark = U(0x37E) -- Greek question mark local spacing_rough = "῾" -- spacing rough breathing local spacing_smooth = "᾿" -- spacing smooth breathing

local multiple = { ["_i"] = subscript, }

local single = { ["a"] = "α", ["A"] = "Α", ["b"] = "β", ["B"] = "Β", ["c"] = "ξ", ["C"] = "Ξ", ["d"] = "δ", ["D"] = "Δ", ["e"] = "ε", ["E"] = "Ε", ["f"] = "φ", ["F"] = "Φ", ["g"] = "γ", ["G"] = "Γ", ["h"] = "η", ["H"] = "Η", ["i"] = "ι", ["I"] = "Ι", ["k"] = "κ", ["K"] = "Κ", ["l"] = "λ", ["L"] = "Λ", ["m"] = "μ", ["M"] = "Μ", ["n"] = "ν", ["N"] = "Ν", ["o"] = "ο", ["O"] = "Ο", ["p"] = "π", ["P"] = "Π", ["q"] = "θ", ["Q"] = "Θ", ["r"] = "ρ", ["R"] = "Ρ", ["s"] = "σ", ["S"] = "Σ", ["t"] = "τ", ["T"] = "Τ", ["u"] = "υ", ["U"] = "Υ", ["v"] = "ϝ", ["V"] = "Ϝ", ["w"] = "ω", ["W"] = "Ω", ["x"] = "χ", ["X"] = "Χ", ["y"] = "ψ", ["Y"] = "Ψ", ["z"] = "ζ", ["Z"] = "Ζ", -- vowel length ["_"] = macron, [spacing_macron] = macron, [modifier_macron] = macron, ["^"] = breve, [spacing_breve] = breve, -- diaeresis and breathings ["+"] = diaeresis, ["("] = rough, [")"] = smooth, -- accents ["/"] = acute, ["\\"] = grave, ["="] = circumflex, ["="] = circumflex, ["~"] = circumflex, -- punctuation ["'"] = "’",	["?"] = question_mark, [";"] = "·",	["*"] = "", -- place after s to prevent it from turning into final sigma -- pipe ["!"] = "|", }

local function convert_s_to_sigma(text) text = str_gsub(text,		"s(" .. one_UTF8_char_or_none .. ")",		function (following)			return ((following == ""				or following ~= "*" and following ~= "-" and ufind(following, "[%s%p]")) and "ς" or "σ") .. following		end) return text end

local function combining_to_spacing(text) for i, accents in ipairs{ { rough, spacing_rough }, { smooth, spacing_smooth } } do		local combining, spacing = unpack(accents) text = str_gsub(text,			"(" .. one_UTF8_char_or_none .. ")" .. combining,			function (preceding)				if preceding == "" then					return spacing				else					return preceding .. combining				end			end) end return text end

return function(text) text = convert_s_to_sigma(text) for k, v in pairs(multiple) do		text = str_gsub(text, k, v)	end text = str_gsub(text, UTF8_char, single) text = combining_to_spacing(text) return reorder_diacritics(text) end