From: Jim Blandy <jimb@redhat.com>
Date: Sat, 8 Oct 1994 22:14:58 +0000 (+0000)
Subject: * insdel.c (prepare_to_modify_buffer): Invalidate width run and
X-Git-Tag: emacs-19.34~6445
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=56e1065ec396c40e81518e603444edecae4320f2;p=emacs.git

* insdel.c (prepare_to_modify_buffer): Invalidate width run and
newline caches, if they exist.
---

diff --git a/src/insdel.c b/src/insdel.c
index 833d0065a1b..0a76dfa537f 100644
--- a/src/insdel.c
+++ b/src/insdel.c
@@ -629,6 +629,15 @@ prepare_to_modify_buffer (start, end)
 
   signal_before_change (start, end);
 
+  if (current_buffer->newline_cache)
+    invalidate_region_cache (current_buffer,
+                             current_buffer->newline_cache,
+                             start - BEG, Z - end);
+  if (current_buffer->width_run_cache)
+    invalidate_region_cache (current_buffer,
+                             current_buffer->width_run_cache,
+                             start - BEG, Z - end);
+
   Vdeactivate_mark = Qt;
 }