commit 60618c8f1a7ea55452837a446525272142286471
author zeertzjq <zeertzjq@outlook.com> Sat Dec 18 15:32:46 2021 +0000
committer Bram Moolenaar <Bram@vim.org> Sat Dec 18 15:32:46 2021 +0000
tree 90c4a7fdbbcbc964d0eb0f16920c24ff273191c9
parent 0dc4d8eaecc3acc26c3bee906d98097f9faa90bd

patch 8.2.3846: no error when using control character for 'lcs' or 'fcs'

Problem:    No error when using control character for 'lcs' or 'fcs'.
Solution:   Use char2cells() to check the width. (closes #9369)

src/testdir/test_display.vim

diff --git a/src/testdir/test_display.vim b/src/testdir/test_display.vim
index 964220c..c14dc78 100644
--- a/src/testdir/test_display.vim
+++ b/src/testdir/test_display.vim
@@ -266,6 +266,8 @@
   call assert_fails(':set fillchars=eob:xy', 'E474:')
   call assert_fails(':set fillchars=eob:\255', 'E474:')
   call assert_fails(':set fillchars=eob:<ff>', 'E474:')
+  call assert_fails(":set fillchars=eob:\x01", 'E474:')
+  call assert_fails(':set fillchars=eob:\\x01', 'E474:')
   " default is ~
   new
   redraw