Marseille and Edimbourg

[Compte de mail au cert]

Hello,

I would like to know if it is easy to translate a Marseille prolog script 
to an Edimbourg prolog script ? Does somebody know a perl or python script
able to carry out such a translation (with constraint management if available) ?

What are the differencies in constraint management between Prolog III & IV
(by PrologIA) and GNU Prolog ?

What are the differencies in performance (benchmark ?) between Prolog III & IV
(by PrologIA) and GNU Prolog ?

Thanks,

Bye

Olivier