RE: C-x C-e with prefix arg [patch]

[Drew Adams]

> > How about letting a non-negative prefix arg insert the full 
> > value (in effect, binding `eval-expression-print-length' and 
> > `eval-expression-print-level' to nil)?  And letting a negative
> > prefix arg do what any prefix arg does today: respect the
> > current values of `eval-expression-print-length' and
> > `eval-expression-print-level'?
> 
> Agreed.  Would you like to submit a patch here or to bug-gnu-emacs?

Attached.

I also changed `eval-print-last-sexp' similarly: a negative prefix arg for it
does what the function always did before: print the abbreviated value.
Otherwise it now prints the full value.

Someone might want to check that the other, non-interactive uses of
`eval-last-sexp' in `lisp-mode.el' still do what is expected (no change).  I
think so.

--

2013-05-04 Drew Adams  <address@hidden>
        * lisp-mode.el:
        (eval-last-sexp):
        Print full value if non-negative prefix arg.
        (eval-print-last-sexp):
        Added optional argument RESPECT-PRINT-OPTIONS.
        If nil, print full value, else abbreviated value.

lisp-mode-2013-05-04a.patch
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