patch 8.1.0183: Lua API changed, breaking the build commit https://github.com/vim/vim/commit/174136713181a1d1460951d7a0392b16603f81bb Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jul 14 20:49:42 2018 +0200 patch 8.1.0183: Lua API changed, breaking the build Problem: Lua API changed, breaking the build. Solution: Adjust prototype of lua_rawgeti(). (Ken Takata, closes #3157, closes #3144)

" 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