Embedded scripting language advice sought

[Saifi Khan]

On Sun, Jan 18, 2009 at 11:41 PM, Linda Messerschmidt
<linda.messerschmidt at gmail.com> wrote:
> For a project I'm working on, I need to find an scripting language, and I
> have a long wishlist:
>
>
> - able to be "easily" embedded in a C++ application
>
> - "real" object-oriented with inheritance (preferably multiple inheritance)
>
> - able to implement object methods in C++ where needed
>
> - "sandbox" operation (e.g. ability to suppress any file I/O & system
> libraries, but keep math and string libraries)
>
> - thread-safe, or, at least able to have multiple coexisting execution
> contexts in one running process
>
> - relatively user-friendly syntax (i.e. (not (lisp (based))))
>
> - has to build and embed on FreeBSD
>

How about looking at Ruby ?

-- 
thanks
Saifi.