nano

commit c2322f8563c28dcce0ed805c9d4b3f0c8178ba6a
parent 4f0683a481e6c044a011c0cddf529145342b0d16
Author: Benno Schulenberg <bensberg@telfort.nl>
Date:   Wed, 27 Mar 2024 11:01:29 +0100

display: draw a new magic line rightaway when there are multiline regexes

Drawing a line will allocate multidata for it (even when the line is
actually empty), so that this multidata will not be missing later on
when the next line gets drawn in the same burst of keystrokes.

(This also removes the triggering of a full refresh when line numbers
are active: only the new magic line needs to be additionally drawn, in
order to get the line number printed.)

This fixes https://savannah.gnu.org/bugs/?65516.
The issue was reported by `correctmost`.

Problem existed since version 6.3, commit 80c2000f.

Diffstat:
M
src/nano.c
 | 
8
++++++--

1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/src/nano.c b/src/nano.c
@@ -1511,8 +1511,12 @@ void inject(char *burst, size_t count)
 	/* If text was added to the magic line, create a new magic line. */
 	if (thisline == openfile->filebot && !ISSET(NO_NEWLINES)) {
 		new_magicline();
-		if (margin > 0)
-			refresh_needed = TRUE;
+#ifdef ENABLE_COLOR
+		if (margin || (openfile->syntax && openfile->syntax->nmultis))
+#else
+		if (margin)
+#endif
+			update_line(thisline->next, 0);
 	}
 
 	openfile->current_x += count;