patch 8.0.0450: v:progpath is not reliably set commit https://github.com/vim/vim/commit/47ffb905f363571072faefbd417938e7ff351a9f Author: Bram Moolenaar <Bram@vim.org> Date: Sun Mar 12 18:38:02 2017 +0100 patch 8.0.0450: v:progpath is not reliably set Problem: v:progpath is not reliably set. Solution: Read /proc/self/exe if possible. (idea by Michal Grochmal) Also fixes missing #if.

" 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