bug#15200: isearch-other-meta-char and shift

[Stefan Monnier]

> while trying to re-implement it using set-temporary-overlay-map.

That sounds great.  Keep us informed of your progress.

> IIUC, the biggest challenge is to add a new argument
> to set-temporary-overlay-map that will define a predicate
> to decide whether this-command-keys should be applied to
> key bindings of the overriding temporary map or passed through
> to other less specific keymaps.

Not sure I understand.  Why do we need to look at this-command-keys?
Are you keeping the default [t] binding in isearch-mode-map, maybe?
That would defeat the purpose of using set-temporary-overlay-map,
I think.


        Stefan