patch 8.2.2425: cursor on invalid line with range and :substitute Commit: https://github.com/vim/vim/commit/df2c2988bbaecd28b0fbec8d64327b1bbb005e19 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Jan 28 20:18:08 2021 +0100 patch 8.2.2425: cursor on invalid line with range and :substitute Problem: Cursor on invalid line with range and :substitute. Solution: Do not move the cursor when skipping commands. (closes https://github.com/vim/vim/issues/3434)

" Simplistic way to make spaces and Tabs visible

" This can be added to an already active syntax.

syn match Space " "
syn match Tab "\t"
if &background == "dark"
  hi def Space ctermbg=darkred guibg=#500000
  hi def Tab ctermbg=darkgreen guibg=#003000
else
  hi def Space ctermbg=lightred guibg=#ffd0d0
  hi def Tab ctermbg=lightgreen guibg=#d0ffd0
endif