Re: Emacs pretest -- electric-pair-mode change

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

> Re-reading Kevin's message I think there are two separate things here:

> * deciding if the buffer is quote-balanced for pairing purposes. That
>   can indeed only be done according to your idea Stefan, i.e. finding a
>   safe spot the we assert to be outside a string.

> * after having obtained reliable info that the buffer is unbalanced, we
>   can further decide if we want to surprise/disappoint the user. This
>   might be argued I think: if we know that there is an unbalance but
>   that it is outside the users view, decide to pair anyway.  If it is in
>   the user's view, try to repair the unbalance by not pairing (this
>   second bit is what is already done)

> I don't know if I personally would like it, perhaps it can be a
> customization option.

For strings, if we know that position POS, which should be outside of
a string, is inside a string, we know that there's an imbalance.  *But*
we don't actually know where that imbalance comes from (it's just
"somewhere before POS"), so we can't really tell if that imbalance is
before or after window-end unless POS is itself before window-end.


        Stefan