patch 8.1.1541: check for ASAN is not reliable commit https://github.com/vim/vim/commit/bffc50494d52a3690cbbc5c7b34a835f9153184e Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jun 15 16:34:21 2019 +0200 patch 8.1.1541: check for ASAN is not reliable Problem: Check for ASAN is not reliable. Solution: Check the version output. (Dominique Pelle, closes https://github.com/vim/vim/issues/4543)

" 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