[R] How to save & play back an entire R session?

[Roy Shimizu]

I know that at the end of an R session I'm given the option to save
the current *state* of the session.

But I would like to save the entire sequence of inputs that took place
during the session, so that I can play them back later, and not only
be left in the same state I was at the time of saving the session, but
be able to see the entire history of the session (inputs and outputs).
 (This is somewhat reminiscent of what can be done with Mathematica
notebooks, although not exactly, since, with Mathematica notebooks,
one doesn't necessarily save the original inputs.)

Does anyone know how to achieve this?

Thanks!

Roy