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Re: Performance degradation from long lines


From: Eli Zaretskii
Subject: Re: Performance degradation from long lines
Date: Mon, 11 Mar 2019 16:35:54 +0200

> Date: Mon, 11 Mar 2019 16:48:08 +1300
> From: Phil Sainty <address@hidden>
> Cc: address@hidden, address@hidden, address@hidden
> 
> On 2019-03-11 16:35, Eli Zaretskii wrote:
> > Does it?  The :version tag is important for Emacs to know which
> > variables were added/changed in what Emacs version, to say something
> > like "this variable was added in Emacs version X.Y.Z", and also to
> > support commands like customize-changed.  Does :package-version
> > support all that?
> 
> e.g. C-h v so-long-action concludes with:
> 
> "This variable was introduced, or its default value was changed, in
> version 1.0 of the so-long package that is part of Emacs 27.1."
> 
> (elisp) Common Keywords says of :package-version
> 
>       This keyword specifies that the item was first introduced in
>       PACKAGE version VERSION, or that its meaning or default value was
>       changed in that version.  This keyword takes priority over
>       ‘:version’.

OK, so it's not :package-version that does the trick, it's the fact
that you added so-long to customize-package-emacs-version-alist.

Although I wonder whether users of Emacs 26.2 will become confused
when they see in "C-h v" a reference to Emacs 27.1...



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