ماڊيول:Sortkey

هي ماڊيول sortkey کي صاف (sanitize) ۽ محفوظ نموني escape ڪري ٿو ته جيئن اهو HTML ٽيگ جي data-sort-value خاصيت اندر استعمال ٿي سگهي، خاص طور تي ٽيبل ترتيب ڏيڻ سان گڏ۔ جڏهن توهان کي يقين نه هجي ته ڏنل sortkey صحيح آهي يا نه، تڏهن هن ماڊيول کي استعمال ڪيو وڃي۔

استعمال

{{#invoke:Sortkey|escape|صاف ڪرڻ لاءِ sortkey}}

---

local getArgs = require('Module:Arguments').getArgs

local p = {}

function p._encode(sortkey)
	-- Protect against sortkey nesting.
	-- Example: {{sort|{{dts|2013|07|07}}|{{dts|1990|12|01}}}}
	if string.find(sortkey, "sortkey") or string.find(sortkey, "data-sort-value") then
		return "";
	end
    return mw.text.encode(sortkey)
end

function p.encode(frame)
	local args = getArgs(frame);
	return p._encode(args[1] or "")
end

local function valid_number(num)
	-- Return true if num is a valid number.
	-- In Scribunto (different from some standard Lua), when expressed as a string,
	-- overflow or other problems are indicated with text like "inf" or "nan"
	-- which are regarded as invalid here (each contains "n").
	if type(num) == 'number' and tostring(num):find('n', 1, true) == nil then
		return true
	end
end

function p._sortKeyForNumber(value)
	local sortkey
	if not valid_number(value) then
		if value < 0 then
			sortkey = '1000000000000000000'
		else
			sortkey = '9000000000000000000'
		end
	elseif value == 0 then
		sortkey = '5000000000000000000'
	else
		local mag = math.floor(math.log10(math.abs(value)) + 1e-14)
		local prefix
		if value > 0 then
			prefix = 7000 + mag
		else
			prefix = 2999 - mag
			value = value + 10^(mag+1)
		end
		sortkey = string.format('%d', prefix) .. string.format('%015.0f', math.floor(value * 10^(math.min(28,14-mag))))
	end
	return sortkey;
end

function p.sortKeyForNumber(frame)
	local args = getArgs(frame);
	return p._sortKeyForNumber(args[1] or "")
end

return p