From d2dc7cfa5b930a1ff68426f3d47809508ac7d392 Mon Sep 17 00:00:00 2001
From: Luuk van Baal <luukvbaal@gmail.com>
Date: Wed, 24 May 2023 20:26:03 +0200
Subject: vim-patch:9.0.0608: with spelling, deleting a full stop does not
 update next line

Problem:    With spell checking, deleting a full stop at the end of a line
            does not update SpellCap at the start of the next line.
Solution:   Update the next line when characters have been deleted.  Also when
            using undo.

https://github.com/vim/vim/commit/26f09ea54b2c60abf21df42c60bdfc60eca17b0d

Co-authored-by: Bram Moolenaar <Bram@vim.org>
---
 src/nvim/change.c | 7 +++++++
 src/nvim/edit.c   | 8 --------
 src/nvim/undo.c   | 7 +++++++
 3 files changed, 14 insertions(+), 8 deletions(-)

(limited to 'src')

diff --git a/src/nvim/change.c b/src/nvim/change.c
index f4969d0ca9..ebbb0d4db6 100644
--- a/src/nvim/change.c
+++ b/src/nvim/change.c
@@ -43,6 +43,7 @@
 #include "nvim/plines.h"
 #include "nvim/pos.h"
 #include "nvim/search.h"
+#include "nvim/spell.h"
 #include "nvim/state.h"
 #include "nvim/strings.h"
 #include "nvim/textformat.h"
@@ -393,6 +394,12 @@ void changed_bytes(linenr_T lnum, colnr_T col)
 {
   changedOneline(curbuf, lnum);
   changed_common(lnum, col, lnum + 1, 0);
+  // When text has been changed at the end of the line, possibly the start of
+  // the next line may have SpellCap that should be removed or it needs to be
+  // displayed.  Schedule the next line for redrawing just in case.
+  if (spell_check_window(curwin) && lnum < curbuf->b_ml.ml_line_count) {
+    redrawWinline(curwin, lnum + 1);
+  }
   // notify any channels that are watching
   buf_updates_send_changes(curbuf, lnum, 1, 1);
 
diff --git a/src/nvim/edit.c b/src/nvim/edit.c
index 612a1a1bda..c0f094453d 100644
--- a/src/nvim/edit.c
+++ b/src/nvim/edit.c
@@ -3395,14 +3395,6 @@ static bool ins_esc(long *count, int cmdchar, bool nomove)
 
   check_spell_redraw();
 
-  // When text has been changed in this line, possibly the start of the next
-  // line may have SpellCap that should be removed or it needs to be
-  // displayed.  Schedule the next line for redrawing just in case.
-  if (spell_check_window(curwin)
-      && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count) {
-    redrawWinline(curwin, curwin->w_cursor.lnum + 1);
-  }
-
   int temp = curwin->w_cursor.col;
   if (disabled_redraw) {
     RedrawingDisabled--;
diff --git a/src/nvim/undo.c b/src/nvim/undo.c
index 00a3922a5b..1eb73d85d7 100644
--- a/src/nvim/undo.c
+++ b/src/nvim/undo.c
@@ -120,6 +120,7 @@
 #include "nvim/path.h"
 #include "nvim/pos.h"
 #include "nvim/sha256.h"
+#include "nvim/spell.h"
 #include "nvim/state.h"
 #include "nvim/strings.h"
 #include "nvim/types.h"
@@ -2372,6 +2373,12 @@ static void u_undoredo(int undo, bool do_buf_event)
     }
 
     changed_lines(top + 1, 0, bot, newsize - oldsize, do_buf_event);
+    // When text has been changed, possibly the start of the next line
+    // may have SpellCap that should be removed or it needs to be
+    // displayed.  Schedule the next line for redrawing just in case.
+    if (spell_check_window(curwin) && bot <= curbuf->b_ml.ml_line_count) {
+      redrawWinline(curwin, bot);
+    }
 
     // Set the '[ mark.
     if (top + 1 < curbuf->b_op_start.lnum) {
-- 
cgit