Caleb Cooper: Created page with "--[[ 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 f..."

2020-11-02T16:48:27Z

Created page with "--[[ 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 f..."

New page

--[[
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

Module:Pn - Revision history

Caleb Cooper: Created page with "--[[ 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 f..."