Module:User:Erutuon/sort test

The following documentation is located at Module:User:Erutuon/sort test/documentation. ^[edit]

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---

local export = {}

local function parse_replacements(replacements_string)
	local replacements = {}
	local i = 1
	for line in replacements_string:gmatch "[^\n]+" do
		local from, to = line:match("^(%S+)%s+(.+)$")
		i = i + 1
		if not from then
			error("Line " .. i .. " didn't consist of a string and a replacement separated by a tab")
		end
		replacements[from] = to
	end
	return replacements
end

local default_sort_key_replacements = {}

default_sort_key_replacements.hu = parse_replacements [[
a	a①
e	e①
i	i①
o	o①
u	u①
á	a②
é	e②
í	i②
ó	o②
ú	u②
ö	o③
ü	u③
ő	ö④
ű	ü④
]]

local function make_sort_key(replacements, str)
	for k, v in pairs(replacements) do
		str = mw.ustring.gsub(str, k, v)
	end
	return str
end

function export.main(frame)
	local words = require "Module:table".shallowcopy(frame.args)
	local lang = frame.args.lang and mw.text.trim(frame.args.lang)
	local sc = frame.args.sc and mw.text.trim(frame.args.sc)
	if not (lang and sc) then
		error("Provide language and script in |lang= and |sc= parameters")
	end
	local replacements = parse_replacements(frame.args.sort_key)
	if not sort_key then
		replacements = default_sort_key_replacements[lang]
		if not replacements then
			error("No replacements for " .. lang)
		end
	end
	local Array = require "Module:array"
	
	return Array(words)
		-- Can't use mw.text.trim directly because it has a second argument.
		:map(function (word) return mw.text.trim(word) end)
		:sort(
			function(a, b)
				return make_sort_key(replacements, a) < make_sort_key(replacements, b)
			end)
		:map(
			function(word)
				return '* <span class="' .. sc .. '" lang="' .. lang .. '">'
					.. word .. '</span>'
			end)
		:concat("\n")
end

return export