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Clarify `scroll-preserve-screen-position' doc string

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* src/window.c (syms_of_window): Clarify the doc string (bug#7910).
This commit is contained in:
Lars Ingebrigtsen 2020-12-09 20:40:03 +01:00
parent b71be20eaf
commit 7f42cab82c
1 changed files with 7 additions and 1 deletions
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src/window.c
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@ -8246,11 +8246,17 @@ is displayed in the `mode-line' face. */);
DEFVAR_LISP ("scroll-preserve-screen-position",
Vscroll_preserve_screen_position,
doc: /* Controls if scroll commands move point to keep its screen position unchanged.
A value of nil means point does not keep its screen position except
at the scroll margin or window boundary respectively.
A value of t means point keeps its screen position if the scroll
command moved it vertically out of the window, e.g. when scrolling
by full screens.
by full screens. If point is within `next-screen-context-lines' lines
from the edges of the window, point will typically not keep its screen
position when doing commands like `scroll-up-command'/`scroll-down-command'
and the like.
Any other value means point always keeps its screen position.
Scroll commands should have the `scroll-command' property
on their symbols to be controlled by this variable. */);