Subject: bug#38317: Buffer-local variables don't work as history for read-from-minibuffer

From: Lars Ingebrigtsen <[email-masked]>
Date: Fri, 22 Nov 2019 14:33:51 +0100

Federico Tedin <[email-masked]> writes:

> In this case, the variable `local-hist' will end up containing all the
> inputted values (per buffer), but trying to use M-p or M-n to step
> through the input history after invoking `my-command' will not work ("no
> preceding item"). So to summarize, `read-from-minibuffer' doesn't seem
> to work correctly when HIST is buffer-local.

Looking at the code in read_minibuf, it does seem to access the
buffer-local value of the HIST variable, but my guess is that the buffer
it's looking at is the minibuffer?  And the variable isn't buffer-local
there.

There doesn't seem to be any way to tell read_minibuf what buffer it
should be looking at to get at the buffer-local value?

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no