- table[lang] = table[lang] or {}
- setfenv(f, table[lang])
- f()
+ if not table[lang] then
+ table[lang] = { f }
+ setmetatable(table[lang], {
+ __index = function(tbl, key)
+ for i = 1, #tbl do
+ local s = rawget(tbl, i):lookup(key)
+ if s then return s end
+ end
+ end
+ })
+ else
+ table[lang][#table[lang]+1] = f
+ end
+