more than this (loop (print (eval (read))))

I need to evaluate my functions interactively.
I would to get an skeleton for a more sofisticated REPL loop than the usual (loop (print (eval (read)))), this is, customizing the prompt, evaluating exit...
Using CLISP on Ubuntu.

thank you

I am not sure what you mean. Slime already exists, as do some plugins for Vim and commercial IDEs. Or do you want something else?

Clisp is open source, you can grab it's source code and look for the word "REPL" in it.

I got. This is http://paste.lisp.org/display/18280 (provided by a freenoded user)