Re: Make scroll-{up, down} move point to {start, end} of newly visible text

[Eli Zaretskii <eliz@gnu.org>]

> From: Spencer Baugh <sbaugh@janestreet.com>
> Date: Mon, 31 Jul 2023 16:18:15 -0400
> 
> 
> After I use scroll-up or scroll-down, I want to start reading the new
> text on the screen.  But it's easy to lose track of where the new text
> start, especially with larger values of next-screen-context-lines.
> 
> So, I would like scrolling to move point to the division between old and
> new text.  Then the location of the cursor will help me keep track of
> which text is new and which text is old.

I don't understand, because what you want happens here by default:
scrolling always puts at the top of the window the first line of those
which constitute next-screen-context-lines.  So, for example, if you
have next-screen-context-lines set to 5, C-v will put the 5th line
from the window's bottom at the top screen line.

If by "new text start" you mean the first line that was not visible in
the window before C-v, then set scroll-margin to the value of
next-screen-context-lines, and then Emacs will put point at that first
new line.

Is that what you want?