patch 9.0.0769: too many delete() calls in tests Commit: https://github.com/vim/vim/commit/db4c94788ad70118fa1ccc5fbc821757350ac771 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Oct 15 22:06:06 2022 +0100 patch 9.0.0769: too many delete() calls in tests Problem: Too many delete() calls in tests. Solution: Use deferred delete where possible.

" 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