Re: How does command remapping actually work?

[Eli Zaretskii]

> From: Marcin Borkowski <mbork@mbork.pl>
> Date: Thu, 29 Jul 2021 07:12:50 +0200
> 
> I experimented a bit with command remapping, and it's great - but how
> does it actually work?  I mean, apparently it doesn't change the keymap,
> and it's not stored in its symbol plist, so where is the remapping info
> actually stored?  IOW, what is changed when I evaluate things like
> 
> (define-key my-mode-map [remap kill-line] 'my-kill-line)

The 'remap' pseudo-key works via special handling in the low-level
keymap code, see the source of where-is-internal in keymap.c (search
for "Qremap").