Simple question about traversing a table

[Christophe Jorssen <jorssen.leraincy@...>]

Hello all,

First of all, I'm quite new to lua so forgive me if
- this is a silly question,
- this is not the right place to ask such a silly question.

I have the following code.

--
function traverse_table(t)
   if t then
      for k=1,#t do
	 if type(t[k] == "table") then
	    print("a table")
	    traverse_table(t[k])
	 else
	    print("not a table")
	 end
      end
   end
end

T = { [1] = { [1] = "item1", [2] = "item2" }}

traverse_table(T)
print("***")
traverse_table(T[1])
print("***")
traverse_table(T[1][1])
--

AFAIU, traverse_table is called recursively *even* when reaching a
string element of the table (and that should be avoided thanks to the
type test).

I'd like to have the following output for traverse_table(T):

a table -- T[1] is a table
not a table -- T[1][1] is a string
not a table -- T[1][2] is a string

Have I missed something?

Note that it surprised me that traverse_table(T[1][1]) actually worked
treating a string like a table. I'll have to investigate PIL a bit
more :-)

Thanks in advance

-- 
Christophe