GNU bug report logs - #36702
27.0.50; newline: don't auto-fill regardless of auto-fill-mode

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From: Andreas Röhler <andreas.roehler <at> easy-emacs.de>
To: "Basil L. Contovounesios" <contovob <at> tcd.ie>
Cc: 36702 <at> debbugs.gnu.org
Subject: bug#36702: 27.0.50; newline: don't auto-fill regardless of auto-fill-mode
Date: Thu, 18 Jul 2019 07:28:06 +0200

On 17.07.19 21:07, Basil L. Contovounesios wrote:
> Andreas Röhler <andreas.roehler <at> easy-emacs.de> writes:
>
>> On 17.07.19 19:47, Basil L. Contovounesios wrote:
>>> Andreas Röhler <andreas.roehler <at> easy-emacs.de> writes:
>>>
>>>> Okay, commonly there many ways in Emacs to work around an issue, which is
>>>> great. But that doesn't solve it at source. By its semantic newline is unrelated
>>>> to filling, from there that behavior is not to expect, idiosyncratic.
>>> Unless you or someone else has a concrete proposal for how to fix said
>>> idiosyncratic behaviour in a backward-compatible way, I think that ship
>>> has sailed.
>>>
>> Decoupling it should not break anything. When fixed, just setting an
>> auto-fill-function will no longer trigger auto-fill in case auto-fill-mode is
>> off.
> But auto-fill-function is effectively synonymous with auto-fill-mode.

Consider that a design flaw. Just setting a var should not trigger a mode.


> If the former is nil, the latter is disabled.  If the former is non-nil,
> the latter is enabled.  There is no variable auto-fill-mode, only the
> buffer-local variable auto-fill-function.
>
> Users and modes that do not want to enable auto-fill-mode should not
> make auto-fill-function non-nil.
>
> Modes that want to provide a custom auto-fill function without enabling
> auto-fill-mode should set normal-auto-fill-function buffer-locally
> instead of auto-fill-function.

Thanks for the hint. Will use it as a workaround.

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