Module:Pn

-- Module that returns one value from a list of unnamed parameters Named parameter idx is the index of the parameter that is to be returned Negative indices count backward from the end of the list ==

local p = {}

p.getVal = function(frame) local args = {} -- copy arguments from frame object and its parent for k, v in pairs(frame.args) do		args[k] = v	end for k, v in pairs(frame:getParent.args) do		args[k] = v	end if not args[1] then return nil end local idx = tonumber(args.idx) or 1 if idx < 0 then idx = #args + idx + 1 end return args[idx] end

return p