Re: Advantage using mapc over dolist

[Tomas Hlavaty <tom@logand.com>]

On Tue 03 Dec 2024 at 09:13, Jean Louis <bugs@gnu.support> wrote:
> * Tomas Hlavaty <tom@logand.com> [2024-12-03 00:21]:
>> On Mon 02 Dec 2024 at 23:50, Jean Louis <bugs@gnu.support> wrote:
>> >> hmm, somebody renamed it to cl-ecase and cl-case
>> >> similar to flet -> cl-flet and labels -> cl-labels
>> >> what a shame
>> >
>> > I find it liberating.
>> 
>> What do you mean?
>> Could you explain that?
>> 
>> Emacs is switching to lexical scope and degraded two of the most lexical
>> scope related things to secodary citizens.
>
> I am an Emacs Lisp programmer, and all Common Lisp functions prefixed with `cl-` I find liberating in the sense that personally within Emacs Lisp I do not like mixing it because it is not Common Lisp. All my software was first in Common Lisp, I know it and use it every day, I am a heavy user of my own Common Lisp. But within Emacs, I like using Emacs Lisp pure—it is a personal choice.

I do not understand this explanation.  It feels like renaming car and
cdr because it feels liberating.  Beginners have been nagging about this
for maybe 60 years already.  iirc flet, labels, case, ecase predate
Common Lisp and were present in ancient Emacs Lisp too (but I am not a
Lisp historian).  Moving to lexical scoping and at the same time
incompatibly renaming those fundamental lisp forms seems silly to me.
They do not even have keyword arglist.  Anytime I process complex data
recursively, I reach for labels.  There does not seem to be an
alternative, does it?  That means infecting my code with cl-lib
silliness.  And how infecting Emacs with pcase monstrosity feels
liberating compared to simple case and ecase?