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bug#32643: 26; minor-mode variables

From: Eli Zaretskii
Subject: bug#32643: 26; minor-mode variables
Date: Thu, 06 Sep 2018 21:35:23 +0300

> Date: Thu, 6 Sep 2018 07:51:10 -0700 (PDT)
> From: Drew Adams <address@hidden>
> Cc: address@hidden, address@hidden
> > Most probably, historical accidents.  But even finding that out is a
> > non-trivial amount of work.
> `auto-fill-mode' has already been identified. Let this bug report serve
> (at least) to ask that Emacs set an `auto-fill-mode' mode variable.

You've changed the subject by eliding the context.  The above was an
answer to your question why some modes have variables while others

As for auto-fill-mode, can you tell why it is important to have a
variable there?  What cannot you do without that variable?

> > I think the manual already does what you want, it just doesn't say
> > this is a bug (because it isn't, IMO).
> The manual says nothing, AFAICT, that provides guidance about when
> a mode should not or need not have a variable. Based on what it does
> say, each mode "should" have a variable. Is that your point?

My point is that the manual recommends that there be a variable.

> In that case, perhaps we should remove the text about some existing
> modes not respecting this "should" - especially if that is only by
> historical accident.

If we remove that, we will have no way to respond to bug reports
requesting that all modes shall have a variable.

> Keeping the text suggests that there is some good reason why some
> modes do not have variables.

There's no such suggestion, it's just a statement of a fact.

> And since a mode not having a variable is likely only an accident, 
> presumably such a mode "should" be fixed, if identified.

Not every accident deserves to be fixed.

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