[Littlejohn]

If you're going for something that's quick+easy to enter, you might want to skip the comma separated list idea -- it's kind of programmerish ya know? Here's a little function that just grabs all the numbers out of a string. Some mods seem to be overly picky with chat command syntax. (Flexbar comes to mind...) People might like it if your mod is ultra lazy with the chat syntax.

function get_numbers(t)
    local w = { }
    for x in string.gfind(t, "(%d+)") do
	table.insert(w, x)
    end
    return w
end

local n = get_numbers("  1 , 2,3,	4 5-6 ")

print(n[1], n[2], n[3]) -- print first 3 numbers
print(table.concat(n, ", ") .. "\n") -- print all the numbers found