[pdftex] Experiment with a new TeX primitive

[The Thanh Han]

On Wed, Feb 04, 2004 at 09:49:18PM +0100, Taco Hoekwater wrote:
> 
> 
> Hi,
> 
> How about this:
> 
>   begin
>     scan_toks(false, true);
>     str_toks(str_start[experiment(tokens_to_string(def_ref))]);
>     ins_list(link(temp_head));
>     delete_token_ref(def_ref);
>   end
> 
> - I don't understand why these call_func's in the pdftex code exist.
>   (If anybody knows and can explain that would be great ;))

I don't remember the details, but I needed it so I could call a function
without using the return value (ie to call it as a procedure). Of course
I would be happier not to have to have that macro ;). 
Things may change know.

Regards,
Thanh