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bug#36861: 27.0.50; display-fill-column-indicator-mode in log-edit-mode

From: Ergus
Subject: bug#36861: 27.0.50; display-fill-column-indicator-mode in log-edit-mode
Date: Tue, 06 Aug 2019 21:25:00 +0200
User-agent: K-9 Mail for Android

We can do that... I was just trying to avoid using ?| by default in any case.

There is also the case when a user sets ?| by default and then call the function. If the check we add is just comparing to the default value then ?| will be always overwritten so an extra internal variable will be needed to cache where the ?| comes from. But OK, if this use case seems to be general enough I can make this changes. BTW. Have you seen my comments about the display engine in the other issue?

On August 6, 2019 8:26:22 PM GMT+02:00, Eli Zaretskii <address@hidden> wrote:
Date: Tue, 6 Aug 2019 19:51:46 +0200
From: Ergus <address@hidden>
Cc: address@hidden, address@hidden

I don't think I understand the problem. Why doesn't just setting the
characters and the mode variable work as expected? AFAIU, one needs
to call the mode function only if one wants Emacs to deduce the
indicator character automatically.


It should work as you say. But the default value for
display-fill-column-indicator-character is nil until the mode function
is executed (at least once).

I think that what they want is display-fill-column-indicator-character
to be non-nil without initialization; which we cannot set without some

Why can't we set display-fill-column-indicator-character to ?| by
default? Invoking the mode function will still do its job, but at
least people who want to just set the variable will have a functional
feature. Am I missing something?

Sent from my Android device with K-9 Mail. Please excuse my brevity.
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