patch 9.0.0916: getbufline() is inefficient for getting a single line Commit: https://github.com/vim/vim/commit/ce30ccc06af7f2c03762e5b18dde37b26ea6ec42 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Nov 21 19:57:04 2022 +0000 patch 9.0.0916: getbufline() is inefficient for getting a single line Problem: getbufline() is inefficient for getting a single line. Solution: Add getbufoneline().

" 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