patch 9.0.1335: no test for bad use of spaces in help files Commit: https://github.com/vim/vim/commit/d950984489e50b12d87c85f0cce1d672c880aa23 Author: h-east <h.east.727@gmail.com> Date: Tue Feb 21 13:33:17 2023 +0000 patch 9.0.1335: no test for bad use of spaces in help files Problem: No test for bad use of spaces in help files. Solution: Add checks for use of spaces in help files. Ignore intentional spaces. (Hirohito Higashi, closes #11952)

" 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