From d0e4ec3c29abc61a92c40d89fc7d3e3cc452e934 Mon Sep 17 00:00:00 2001 From: Gregory Heytings Date: Mon, 1 Aug 2022 13:27:02 +0000 Subject: [PATCH] Fix forgotten initialization for long line optimizations. * src/xdisp.c (init_iterator): Initialize the 'narrowed_begv' field. * src/buffer.c (syms_of_buffer): Docstring clarification. --- src/buffer.c | 5 ++++- src/xdisp.c | 3 +++ 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/src/buffer.c b/src/buffer.c index a07194aef72..e5601af5051 100644 --- a/src/buffer.c +++ b/src/buffer.c @@ -6431,12 +6431,15 @@ will run for `clone-indirect-buffer' calls as well. */); DEFVAR_LISP ("long-line-threshold", Vlong_line_threshold, doc: /* Line length above which to use redisplay shortcuts. + The value should be a positive integer or nil. If the value is an integer, shortcuts in the display code intended to speed up redisplay for long lines will automatically be enabled in buffers which contain one or more lines whose length is above this threshold. -If nil, these display shortcuts will always remain disabled. */); +If nil, these display shortcuts will always remain disabled. + +There is no reason to change that value except for debugging purposes. */); XSETFASTINT (Vlong_line_threshold, 10000); defsubr (&Sbuffer_live_p); diff --git a/src/xdisp.c b/src/xdisp.c index 8a19b3bda97..9574d06bd5c 100644 --- a/src/xdisp.c +++ b/src/xdisp.c @@ -3472,6 +3472,9 @@ init_iterator (struct it *it, struct window *w, &it->bidi_it); } + if (current_buffer->long_line_optimizations_p) + it->narrowed_begv = 0; + /* Compute faces etc. */ reseat (it, it->current.pos, true); } -- 2.39.2