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bug#54537: Re: bug#54537: 29.0.50; Last sexp notion is different for eva
From: |
Michael Heerdegen |
Subject: |
bug#54537: Re: bug#54537: 29.0.50; Last sexp notion is different for eval-last-sexp and pp-eval-last-sexp |
Date: |
Thu, 24 Mar 2022 03:22:04 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) |
Drew Adams <drew.adams@oracle.com> writes:
> Still calls out for a better argument than a vague
> opinion that such a change adding incompatibility
> would be "more convenient". That's all.
Ok - let's become concrete now.
About what kinds of use cases are we a talking about? Use cases like
this:
#+begin_src emacs-lisp
`(,(+ 2 3)
,(+ 4 5))
#+end_src
The non-pp behavior is useful (you are able to eval the inserted
subexpressions). The pp behavior is not useful (error).
This behaves identically in both versions:
#+begin_src emacs-lisp
',(+ 4 5)
#+end_src
(you get the expected `,(+ 4 5)`.)
So we only talk about plain naked `unquote` expressions.
Do you see any concrete advantages of the pp-version behavior? Or some
concrete hints that the pp version must be like this for more
consistency in the pp package?
OTOH, a concrete problem I see is that people avoid pp due to such things.
As far as I recall the history of the pp package, I don't expect much
logic behind the behavior. Maybe it really just...sucks?
Michael.
- bug#54537: 29.0.50; Last sexp notion is different for eval-last-sexp and pp-eval-last-sexp, Visuwesh, 2022/03/23
- bug#54537: 29.0.50; Last sexp notion is different for eval-last-sexp and pp-eval-last-sexp, Lars Ingebrigtsen, 2022/03/23
- bug#54537: 29.0.50; Last sexp notion is different for eval-last-sexp and pp-eval-last-sexp, Drew Adams, 2022/03/23
- bug#54537: 29.0.50; Last sexp notion is different for eval-last-sexp and pp-eval-last-sexp, Visuwesh, 2022/03/23
- bug#54537: Re: bug#54537: 29.0.50; Last sexp notion is different for eval-last-sexp and pp-eval-last-sexp, Drew Adams, 2022/03/23
- bug#54537: Re: bug#54537: 29.0.50; Last sexp notion is different for eval-last-sexp and pp-eval-last-sexp, Michael Heerdegen, 2022/03/23
- bug#54537: Re: bug#54537: 29.0.50; Last sexp notion is different for eval-last-sexp and pp-eval-last-sexp, Drew Adams, 2022/03/23
- bug#54537: Re: bug#54537: 29.0.50; Last sexp notion is different for eval-last-sexp and pp-eval-last-sexp,
Michael Heerdegen <=
- bug#54537: Re: bug#54537: 29.0.50; Last sexp notion is different for eval-last-sexp and pp-eval-last-sexp, Drew Adams, 2022/03/23
- bug#54537: Re: bug#54537: 29.0.50; Last sexp notion is different for eval-last-sexp and pp-eval-last-sexp, Visuwesh, 2022/03/23
bug#54537: 29.0.50; Last sexp notion is different for eval-last-sexp and pp-eval-last-sexp, Lars Ingebrigtsen, 2022/03/25