Excerpts from david.teller's message of Wed Jan 09 23:16:12 +0100 2008:
> 
>     Dear list,
> 
>   I've seen that question pop-up a few times but no answer. Assuming I
> have a Camlp4 pretty-printer, how can I get the toplevel to use it ?

In  fact it's a pain, since the top-printer is not the same. It has to print a
so called Outcometree. You can look at the source code camlp4/Camlp4Top/Rprint.ml

HTH,

-- 
Nicolas Pouillard aka Ertai