2 simples function

[marcryzius]

this function is an alternative to using the function tonumber().
transforms a 'string' to 'numbers'.
the other returns all the elements

function getnumber(n) --[[> Marcryzius <]]--
local v = 0
if type(n) == 'number' then return n end
	for s = 1,#n do
		for N = 0,9 do
			if ''..N == n:sub(s,s) then
				v = (v+N)*10
			end
		end
	end
	return v/10
end

function tonumber(...) --[[> Marcryzius <]]--
local tab = {}
	for k,n in ipairs({...}) do
		tab[k] = getnumber(n)
	end
	return unpack(tab)
end

Ex:
this;

local a,b = '1525',235
local c,d = tonumber(a),tonumber(b)
print(c,d)

to;

local a,b = '1525',235
local c,d = tonumber(a,b)
print(c,d)

edited:
exclusive to otland do not let that put on another site