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မော်ဂျူး:za-sortkey

Documentation for this module may be created at မော်ဂျူး:za-sortkey/doc 

local export = {}
local u = mw.ustring.char
local UTF8_char = "[%z\1-\127\194-\244][\128-\191]*"
local a, b, c, d, e, f, g = u(0xF000), u(0xF001), u(0xF002), u(0xF003)
local b2 = u(0xF100)
local g2, g3 = u(0xF200), u(0xF201)
local m2, m4 = u(0xF300), u(0xF301)
local n2, n4, n6, n7, n8 = u(0xF400), u(0xF401), u(0xF402), u(0xF403), u(0xF404)

local remove_diacritics = "'" -- apostrophe

local oneCharInit = {
	["z"] = "2", ["ƨ"] = "2!", ["j"] = "3", ["з"] = "3!", ["x"] = "4", ["ч"] = "4!", ["q"] = "5", ["ƽ"] = "5!", ["ƅ"] = "6!"
}

local twoCharsInit = {
	["by"] = b2, ["gv"] = g2, ["gy"] = g3, ["mb"] = m2, ["my"] = m4, ["nd"] = n2, ["ng"] = n4, ["ŋv"] = n7, ["ny"] = n8
}

local threeCharsInit = {
	["ngv"] = n6
}

local conditionalTones1 = {
	["h"] = "6"
}

local conditionalTones2 = {
	["m"] = "m1", ["n"] = "n1", [n4] = n4 .. "1", ["ŋ"] = "ŋ1", ["k"] = "k7", ["p"] = "p7", ["t"] = "t7", ["b"] = "b8", ["d"] = "d8", ["g"] = "g8"
}

local oneCharFinal = {
	["ə"] = "a" .. a .. "!", [b2] = "b" .. a, [g2] = "g" .. a, [g3] = "g" .. b, [m2] = "m" .. a, ["ƃ"] = "m" .. a .. "!", [m4] = "m" .. b, [n2] = "n" .. a, ["ƌ"] = "n" .. a .. "!", [n4] = "n" .. b, ["ŋ"] = "n" .. b .. "!", [n6] = "n" .. c, [n7] = "n" .. c .. "!", [n8] = "n" .. d, ["ɵ"] = "o" .. a .. "!", ["ɯ"] = "w!"
}

local twoCharsFinal = {
	["ae"] = "a" .. a, ["oe"] = "o" .. a
}

function export.makeSortKey(text, lang, sc)
	local origText = text
	text = mw.ustring.lower(text)
	
	-- convert any consonant clusters to single characters, which is necessary for later regexes, and unconditional tone letters to numbers
	for from, to in pairs(threeCharsInit) do
		text = text:gsub(from, to)
	end
	
	for from, to in pairs(twoCharsInit) do
		text = text:gsub(from, to)
	end
	
	text = text:gsub(UTF8_char, oneCharInit)
	
	-- conditionally convert any conditional tone letters to numbers (e.g. "h" can be a consonant or a tone letter)
	for from, to in pairs(conditionalTones1) do
		text = text:gsub(from .. "$", to)
		text = mw.ustring.gsub(text, from .. "([^1-8aeiouwəɵɯ])", to .. "%1")
	end
	
	-- conditionally add a tone number to any syllable-final consonants which do not have them
	for from, to in pairs(conditionalTones2) do
		text = text:gsub(from .. "$", to)
		text = mw.ustring.gsub(text, from .. "([^1-8aeiouwəɵɯ])", to .. "%1")
	end
	
	-- conditionally add a tone number to any syllable-final vowels which do not have them
	text = mw.ustring.gsub(text, "([^1-8%s%p])$", "%11")
	text = mw.ustring.gsub(text, "([1-8][" .. a .. "-" .. d .. "])1$", "%1")
	text = mw.ustring.gsub(text, "([aeiouwəɵɯ])([^1-8aeiouwəɵɯ][^1-8])", "%11%2")
	
	-- convert clusters and non-ASCII characters to final form, to achieve correct order
	for from, to in pairs(twoCharsFinal) do
		text = text:gsub(from, to)
	end
	
	text = text:gsub(UTF8_char, oneCharFinal)
	
	-- move "!" to the end and remove any duplicates, to ensure old orthography terms are sorted immediately after their new equivalents
	for old in text:gmatch("!") do text = text:gsub("(!)(.+)", "%2%1") end
	text = text:gsub("!+", "!")
	
	-- if tone 5 is substituted for tone 1 in pronunciation, also substitute in sortkey (i.e. as though "q" were written)
	local page = mw.title.new(origText):getContent() or ""
	if mw.ustring.match(page, "{{za%-pron|.*new_bor=1}}") or mw.ustring.match(page, "{{za%-pron|.*new_bor=y}}") then
		text = mw.ustring.gsub(text, "1", "5")
	-- if the page has the old orthography template, then check the modern orthography page and substitute if present there (i.e. as though "ƽ" were written)
	elseif mw.ustring.match(page, "{{za%-1957 spelling of|.*}}") then
		local parentPage = mw.title.new(mw.ustring.match(page, "{{za%-1957 spelling of|(.-)}}")):getContent() or ""
		if mw.ustring.match(parentPage, "{{za%-pron|.*new_bor=1}}") or mw.ustring.match(parentPage, "{{za%-pron|.*new_bor=y}}") then
			text = mw.ustring.gsub(text, "1", "5" .. a)
		end
	elseif mw.ustring.match(page, "{{za%-1957 orthography of|.*}}") then
		local parentPage = mw.title.new(mw.ustring.match(page, "{{za%-1957 orthography of|(.-)}}")):getContent() or ""
		if mw.ustring.match(parentPage, "{{za%-pron|.*new_bor=1}}") or mw.ustring.match(parentPage, "{{za%-pron|.*new_bor=y}}") then
			text = mw.ustring.gsub(text, "1", "5" .. a)
		end
	end
	
	-- decompose, remove appropriate diacritics, then recompose again
	return mw.ustring.upper(mw.ustring.toNFC(mw.ustring.gsub(mw.ustring.toNFD(text), "[" .. remove_diacritics .. "]", "")))
end

local za = require("Module:languages").getByCode("za")
local function tag(text)
	return require("Module:script utilities").tag_text(text, za)
end

local showsubst1 = {
	["0"] = "⁰", ["1"] = "¹", ["2"] = "²", ["3"] = "³", ["4"] = "⁴", ["5"] = "⁵", ["6"] = "⁶", ["7"] = "⁷", ["8"] = "⁸"
}

local showsubst2 = {
	["2!"] = "²ᵃ", ["3!"] = "³ᵃ", ["4!"] = "⁴ᵃ", ["5!"] = "⁵ᵃ", ["6!"] = "⁶ᵃ", ["A" .. a] = "A₂", ["A" .. a .. "!"] = "A₂ₐ", ["B" .. a] = "B₂", ["G" .. a] = "G₂", ["G" .. b] = "G₃", ["M" .. a] = "M₂", ["M" .. a .. "!"] = "M₂ₐ", ["M" .. b] = "M₃", ["N" .. a] = "N₂", ["N" .. a .. "!"] = "N₂ₐ", ["N" .. b] = "N₃", ["N" .. b .. "!"] = "N₃ₐ", ["N" .. c] = "N₄", ["N" .. c .. "!"] = "N₄ₐ", ["N" .. d] = "N₅", ["O" .. a] = "O₂", ["O" .. a .. "!"] = "O₂ₐ", ["W!"] = "Wₐ"
}

function export.showSortkey(frame)
	local output = {}
	
	for _, word in ipairs(frame.args) do
		local sc = za:findBestScript(word):getCode()
		local sortkey = export.makeSortKey(word, "za", sc)
		for from, to in pairs(showsubst2) do
			sortkey = mw.ustring.gsub(sortkey, from, to)
		end
		for from, to in pairs(showsubst1) do
			sortkey = mw.ustring.gsub(sortkey, from, to)
		end
		local example = "\n* <code>" .. sortkey .. "</code>\n: " .. tag(word)
		table.insert(output, example)
	end
	
	return table.concat(output)
end

function export.showSorting(frame)
	local terms = {}
	
	for _, term in ipairs(frame.args) do
		table.insert(terms, term)
	end
	
	local makeSortKey = require("Module:fun").memoize(export.makeSortKey)
	local function comp(term1, term2)
		return makeSortKey(term1) < makeSortKey(term2)
	end
	
	table.sort(terms, comp)
	
	for i, term in pairs(terms) do
		local sc = za:findBestScript(term):getCode()
		local sortkey = export.makeSortKey(term, "za", sc)
		for from, to in pairs(showsubst2) do
			sortkey = mw.ustring.gsub(sortkey, from, to)
		end
		for from, to in pairs(showsubst1) do
			sortkey = mw.ustring.gsub(sortkey, from, to)
		end
		terms[i] = "\n* " .. tag(term) .. " (<code>" .. sortkey .. "</code>)"
	end
	
	return table.concat(terms)
end

return export
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