bug#31772: 26.1; (thing-at-point 'list) regression

[Leo Liu <sdl.web@gmail.com>]

On 2018-09-06 21:01 +0200, Andreas Röhler wrote:
> Hi Leo,
>
> lets consider the following proposed change of tests:
>
> -                         ("(foo\n(a ;(b c d)\ne) bar)" . (a e))
> +                         ("(foo\n(a ;(b c d)\ne) bar)" . (foo (a e) bar))
>
> As the ert-test mentioned  calls (re-search-backward "\\((a\\|^a\\)")
>
> point will be behind foo at "(a". I.e. "foo" belongs to outer list,
> not to list-at-point. The desired result shown by this change looks
> wrong, "(foo" should not be part of.
>
> Maybe I'm missing something.
> May you provide a standalone example where current behavior breaks
> your code?

I carefully considered this case when preparing the patch.

In the last 10 years (thing-at-point 'list) always returns the enclosing
list so I opted to keep this for now. It is confusing and I don't like
it personally.

It can be tweaked to look at "list" at point first if that's what
everybody wants.

Cheers,
Leo