Re: Puzzled by SBCL evaluating some Scheme code

On 2024-03-27, Axel Reichert <mail@axel-reichert.de> wrote:

However, at one point I managed to paste an expression into the wrong
REPL, SBCL instead of Guile, and got
>
  (list + - * /)
evaluated by SBCL as
>
  (NIL (LIST + - * /) NIL NIL)

In the Common Lisp interactive listener (a.k.a. REPL), there is a
standard variable called - which evaluates to the form currently
being evaluated:

https://www.lispworks.com/documentation/lw50/CLHS/Body/v__.htm

There are also variables +, ++ and +++, which hold less
recent values of -.

https://www.lispworks.com/documentation/lw50/CLHS/Body/v_pl_plp.htm

There also *, ** and ***, which hold the primary value of the
three most recent REPL evaluations, and:

https://www.lispworks.com/documentation/lw50/CLHS/Body/v__stst_.htm

As well as /, // and ///, which hold the lists of all the values
of the three most recent evaluations.

https://www.lispworks.com/documentation/lw50/CLHS/Body/v_sl_sls.htm

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