Re: A proposal for the future of open-paren-in-column-0-is-defun-start.

[Stefan Monnier <monnier@iro.umontreal.ca>]

>> Given that I haven't seen a single incident reported since that fateful
>> Dec 12 2017 night, I think we'd be better off removing
>> `comment-use-syntax-ppss` altogether.
>
> Er, Martin reported a delay of 10 seconds when scrolling a buffer with
> the mouse wheel.  How does that not cound as an "incident"?

I don't see anything in this report that relates it to
`comment-use-syntax-ppss` (nor to `open-paren-in-column-0-is-defun`).

> What you mean by your suggestion is to remove
> open-paren-in-column-0-is-defun start altogether.

No, my suggestion is to remove `comment-use-syntax-ppss` (i.e. remove
the possibility to set it to nil).

> Both Martin and Richard, who have less powerful machines than we do, are
> unhappy about this.

I don't see any reason to think their unhappiness is due to
`open-paren-in-column-0-is-defun` or `comment-use-syntax-ppss`.

> Anyway, what exactly happened on 2017-12-12 that qualifies as a fateful
> incident?

Commit 14b95587520959c5b54356547a0a69932a9bb480!


        Stefan