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bug#21396: 25.0.50; read-key's prompt is not visible
From: |
Tassilo Horn |
Subject: |
bug#21396: 25.0.50; read-key's prompt is not visible |
Date: |
Fri, 04 Sep 2015 11:27:30 +0200 |
User-agent: |
Gnus/5.130014 (Ma Gnus v0.14) Emacs/25.0.50 (gnu/linux) |
Eli Zaretskii <eliz@gnu.org> writes:
>> Redefining functions is the worst of all customization possibilities,
>> of course, but what is the reason that the above cannot be expected
>> to continue working?
>
> Supporting this is maintenance burden that we shouldn't be expected to
> sustain. When I'm working on extending a function, how am I supposed
> to know that it's defaliased by someone? If I need to extend the
> function to make it incompatible with these tricks, it's a legitimate
> development that shouldn't be avoided for fear of breaking someone's
> fset.
You cannot and should not! I am fully aware that I won't benefit from
your extensions to `yes-or-no-p' when I do the above fset. But for a
function with no side-effects and such a sharp contract as "ask the user
for confirmation and return non-nil if she's fine", I don't see a
practical problem anyway.
Again, the current issue was that `read-key' (and therefore `y-or-n-p')
didn't show its prompt anymore. That was a real regression, not a
change which had the side-effect of breaking the fset "trick." Stefan
fixed it not in order to restore compatibility with tricks but because
`read-key' didn't satisfy the contract of its docstring anymore.
> If people keep using such "customizations", it's a clear sign that
> some defcustom or another similar facility is missing, or that the
> original code needs improvement. So when such situations happen,
> let's report them to the bug tracker, and let's handle them as we
> usually do.
I'm all in favour of having a `user-confirmation-function', and/or a
more sensible use of `yes-or-no-p'/`y-or-n-p' inside emacs (use the
former only when the consequences of a wrong answer are really severe),
or something else. The problem is that it'll take long until all emacs
packages follow suit, and frequently having to type 2 or 3 chars + RET
instead of just one is something which is cumbersome enough to me and
many others as it seems.
Bye,
Tassilo
- bug#21396: 25.0.50; read-key's prompt is not visible, (continued)
- bug#21396: 25.0.50; read-key's prompt is not visible, Stefan Monnier, 2015/09/03
- bug#21396: 25.0.50; read-key's prompt is not visible, Tassilo Horn, 2015/09/03
- bug#21396: 25.0.50; read-key's prompt is not visible, Eli Zaretskii, 2015/09/03
- bug#21396: 25.0.50; read-key's prompt is not visible, Drew Adams, 2015/09/03
- bug#21396: 25.0.50; read-key's prompt is not visible, Tassilo Horn, 2015/09/03
- bug#21396: 25.0.50; read-key's prompt is not visible, Eli Zaretskii, 2015/09/04
- bug#21396: 25.0.50; read-key's prompt is not visible, Tassilo Horn, 2015/09/04
- bug#21396: 25.0.50; read-key's prompt is not visible, Eli Zaretskii, 2015/09/04
- bug#21396: 25.0.50; read-key's prompt is not visible,
Tassilo Horn <=
- bug#21396: 25.0.50; read-key's prompt is not visible, Stefan Monnier, 2015/09/03
- bug#21396: 25.0.50; read-key's prompt is not visible, Dmitry Gutov, 2015/09/03
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