Re: show-enclosing-scopes

[Jefferson Carpenter]

replying to all

On 5/16/2018 8:03 AM, Eli Zaretskii wrote> AFIU, you have there a 
function on pre-command-hook that
> deletes a window and then forces redisplay.  So I'd say you get what
> you asked for?

Yeah, maybe :)

> I don't think I understand why scroll commands rewuire that.

Open a blank buffer and enter some text into it, for example "C-x ( F3 
<RET> C-x ) C-u 20 C-x e".  Then, run

(progn (scroll-up 1) (beginning-of-buffer))

The window scrolls up by 1 line and point is moved to the middle of the 
screen, even though (beginning-of-buffer) is sequenced after (scroll-up 
1).  Compare with:

(progn (scroll-up 1) (redisplay) (beginning-of-buffer))

This moves point to the beginning of the buffer, the (scroll-up 1) call 
essentially becoming a no-op.  This is why (redisplay) is used in my 
code: it appears to flush the internal state set by scroll-up and 
scroll-down, so that (beginning-of-buffer) has the intended effect.