bug#50236: 27.2; electric-pair-mode is inconvenient in comint

On Sat,  8 Aug 2026, João Távora wrote:

> But _if_ you wanted to do that, you'd be wrong.  You wouldn't need to
> "fill the whole buffer with field [properties]".  A field is just a
> region of text with the same ‘field’ property, so if you set a single
> char's worth of "field=blargh" in the '*' (where you already set an
> overlay anyway aparently) you have the needed demarcations.  Delete that
> heading and you magically merge the two fields for free.

What if you change the '*' at BOL to ' *' or '*x' or whatever makes it
stop being a heading delimiter?

What you're arguing for boils down to precomputing all possible e-p-m
boundaries and encoding the result in field properties.  I really don't
get why you think that's better than moving the field search logic to a
new function and making the e-p-m boundary search function customizable,
as in

  (defun e-p-m-self-insert-function ()
    (let ((bounds (funcall e-p-m-bounds-function)))
      (with-restriction (car bound) (cdr bounds)
        <old definition of e-p-m-self-insert-function>)))

This is dead simple.

> Play around with field-beginning and field-end to see what I mean.
> These functions are in C and they are pretty fast.
>
>> (Here, we do not care about previous section brackets)
>
> Not necessarily.  Currently org matches across different headings and I
> haven't seen anyone complaining.  Personally, it's only inside code
> blocks I think it makes a little more sense to track balance
> independently.
>
>> #+begin_src emacs-lisp
>> (message "And here we can Elisp code, that should be isolated")
>> #+end_src
>
> Only here would I do the courtesy of marking that a field, because it
> comes from another language completely.  You already set a 'src-block'
> to 't' property there.  I'd put a 'field' as well, and call it a day.
> It's probably a sub-1-loc patch which I would show if I somehow dared to
> navigate that petaline code base, but surely you can.

The department of redundancy department would like that a lot.

> João