Clear search highlight on autocmd BufWrite
I tried most of the suggestions in those three questions:
Get rid of Vim's highlight after searching text
How to get rid of search highlight in Vim
Vim clear last search highlighting
It's mainly the :noh , and it works when I type it manually. I just want it happen on BufWrite, so I tried multiple ways, none of which worked:
function! RemoveHighLight()
:noh
endfunction
autocmd BufWrite * :call RemoveHighLight()
autocmd BufWrite * :noh
autocmd BufWrite * :execute "normal! :noh<cr>"
Debuging echom s and adebug<esc> in the function and in the third autocmd show that they execute successfully, just the :noh has no effect.
(Also tried :let @/ = "" which worked but it clears the search pattern, which is not I'm looking for. I just want to get rid of the highlight til pressing n or similar)
Using BufWritePost doesn't have effect, either.
It is a workaround but you can set nohlsearch by autocmd. Then you can add a mapping to set it back by n and N.
au BufWrite * set nohlsearch
nnoremap <silent> n n:set hlsearch<CR>
nnoremap <silent> N N:set hlsearch<CR>
Or maybe better, check if it is already set
au BufWrite * set nohlsearch
nnoremap <silent> n n:call ToggleHlBack()<CR>
nnoremap <silent> N N:call ToggleHlBack()<CR>
function! ToggleHlBack()
if &hlsearch == 'nohlsearch'
set hlsearch
endif
endfunction