Process variable number of arguments in Lua

Question

I am passing arguments to a Lua script and retrieving them using:

local arg1, arg2 = ...

Now I'd like to use a different syntax, with free ordering, such that I can call:

./myscript.lua arg1=val1 arg2=val2

so I'm trying something like:

args = ...
params = {}

for i, k in pairs(args) do
  p, v = split(a, "=")
  params[p] = v
end

which doesn't work because args only gets the value of the first argument.

How can I retrieve all the arguments passed to the script in one go?

Note: the script is executed from C using lua_pcall.

Yu Hao · Accepted Answer · 2015-09-23 09:39:21Z

2

Assign it with {...} like this:

args = {...}
params = {}

for i, k in ipairs(args) do
  print(i, k)
end

In fact, args is not needed:

for i, k in ipairs{...} do

answered Sep 23, 2015 at 9:39

Yu Hao

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