nano

commit 12e5c2f07da77ef6661e653df421b5df4441ba7f
parent 5c07a747bbf03f59e67252ec406f6acfb586b0fa
Author: Benno Schulenberg <bensberg@telfort.nl>
Date:   Mon, 17 Feb 2020 11:32:03 +0100

undo: for an automatic hard-wrap, store the correct previous buffer size

The SPLIT_BEGIN item gets tucked underneath the ADD item on the top of
the undo stack.  Thus: that SPLIT_BEGIN item should copy the 'wassize'
of the ADD item instead of storing the current buffer size.

This fixes https://savannah.gnu.org/bugs/?57832.

Bug existed since the undo functionality was added, and existed
in this form since version 2.3.5, commit be10c2a4.

Diffstat:
M
src/text.c
 | 
1
+

1 file changed, 1 insertion(+), 0 deletions(-)
diff --git a/src/text.c b/src/text.c
@@ -1142,6 +1142,7 @@ void add_undo(undo_type action, const char *message)
 	 * SPLIT_BEGIN item underneath that action's undo item.  Otherwise,
 	 * just add the new item to the top of the undo stack. */
 	if (u->type == SPLIT_BEGIN) {
+		u->wassize = openfile->undotop->wassize;
 		u->next = openfile->undotop->next;
 		openfile->undotop->next = u;
 	} else