Module:LoadData/sandbox

local p = {}

-- Finds the next key key <= or >= the given i. -- operator is ±1 local function findItemRange(data, i, operator) local bestIndex = nil i = i * operator for k, v in pairs(data) do   	local kop = type(k) == 'number' and k * operator if kop and kop <= i and (bestIndex == nil or kop > bestIndex * operator) then bestIndex = k       end end if bestIndex then return data[bestIndex] else return nil end end

local function load(datamodule, frame) local args = frame.args local data = mw.loadData(datamodule) for i = 1, 20 do       if args[i] then data = data[tonumber(args[i]) or args[i]] elseif args[i .. ' lteq'] then data = findItemRange(data, tonumber(args[i .. ' lteq']), 1) elseif args[i .. ' gteq'] then data = findItemRange(data, tonumber(args[i .. ' gteq']), -1) else break end end if data == nil then return args['if_nil'] -- not a required argument, OK to return nil here. end if type(data) == 'table' then -- Put the table into another table because the return value of loadData -- is a "fake" table that only has certain metamethods. local realdata = {} for k, v in pairs(data) do   		realdata[k] = v    	end data = realdata else data = { data } end if args['template'] then return mw.text.unstripNoWiki(args['template']):format(unpack(data)) elseif args['preprocess'] then return frame:preprocess(mw.text.unstripNoWiki(args['preprocess']):format(unpack(data))) else return table.concat(data) end end

return setmetatable({}, {	__index = function(t, k)		return function(frame)			if k:sub(-5) == '.json' then				return load(mw.text.jsonDecode(mw.title.new(k).getContent), frame)			else			   return load(mw.loadData('Module:' .. k), frame)			end	    end	end })