From: Bram Moolenaar <Bram@vim.org>
Date: Tue, 24 May 2022 12:57:54 +0000 (+0100)
Subject: patch 8.2.5013: after text formatting cursor may be in an invalid position
X-Git-Tag: v8.2.5013
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=78d52883e10d71f23ab72a3d8b9733b00da8c9ad;p=thirdparty%2Fvim.git

patch 8.2.5013: after text formatting cursor may be in an invalid position

Problem:    After text formatting the cursor may be in an invalid position.
Solution:   Correct the cursor position after formatting.
---

diff --git a/src/testdir/test_textformat.vim b/src/testdir/test_textformat.vim
index d33e2508d2..c5f5975801 100644
--- a/src/testdir/test_textformat.vim
+++ b/src/testdir/test_textformat.vim
@@ -1291,4 +1291,16 @@ func Test_fo_2()
   close!
 endfunc
 
+" This was leaving the cursor after the end of a line.  Complicated way to
+" have the problem show up with valgrind.
+func Test_correct_cursor_position()
+  set encoding=iso8859
+  new
+  norm a000“0
+  sil! norm gggg0i0gw0gg
+
+  bwipe!
+  set encoding=utf8
+endfunc
+
 " vim: shiftwidth=2 sts=2 expandtab
diff --git a/src/textformat.c b/src/textformat.c
index 7e32c1ccc3..5ba2f1798d 100644
--- a/src/textformat.c
+++ b/src/textformat.c
@@ -870,6 +870,9 @@ op_format(
     {
 	curwin->w_cursor = saved_cursor;
 	saved_cursor.lnum = 0;
+
+	// formatting may have made the cursor position invalid
+	check_cursor();
     }
 
     if (oap->is_VIsual)
diff --git a/src/version.c b/src/version.c
index dea37d6cdd..f737b1b7d1 100644
--- a/src/version.c
+++ b/src/version.c
@@ -734,6 +734,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    5013,
 /**/
     5012,
 /**/