From: Gregory Heytings Date: Tue, 19 Jul 2022 13:33:38 +0000 (+0000) Subject: Improve the heuristic for long lines detection again. X-Git-Tag: emacs-29.0.90~1447^2~821^2~4 X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=9a894206f6;p=emacs.git Improve the heuristic for long lines detection again. * src/xdisp.c (redisplay_window): Improve the heuristic again. --- diff --git a/src/xdisp.c b/src/xdisp.c index 05fb008ff15..ee34487a444 100644 --- a/src/xdisp.c +++ b/src/xdisp.c @@ -19294,7 +19294,9 @@ redisplay_window (Lisp_Object window, bool just_this_one_p) /* Check whether the buffer to be displayed contains long lines. */ if (!NILP (Vlong_line_threshold) && !current_buffer->long_line_optimizations_p - && Z - BEG - BUF_UNCHANGED_SIZE (current_buffer) <= 1) + && (MODIFF - UNCHANGED_MODIFIED > 4 + || Z - BEG - BUF_UNCHANGED_SIZE (current_buffer) > 1 + || Z - BEG - BUF_UNCHANGED_SIZE (current_buffer) < -1)) { ptrdiff_t cur, next, found, max = 0; for (cur = 1; cur < Z; cur = next)