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augroup nohai
autocmd!
" autocmd CmdlineLeave * call s:Nohai(expand('<afile>'))
autocmd CmdlineEnter [/?] call s:Nohai(expand('<afile>'))
augroup END
function! s:Nohai(cmdwin_char)
if a:cmdwin_char == '/' || a:cmdwin_char == '?'
" nohlsearch
" ^ doesn't work because the autocommand executes before leaving the
" command line window
call s:AddMapping(a:cmdwin_char)
else
call s:RemoveMapping()
endif
endfunction
function! s:AddMapping(cmdwin_char)
" silent! cnoremap <CR> <CR>:nohlsearch<CR>
silent! cnoremap <expr> <CR> s:CR(a:cmdwin_char)
endfunction
function! s:RemoveMapping()
silent! cunmap <CR>
endfunction
function! s:CR(cmdwin_char)
if a:cmdwin_char == '/' || a:cmdwin_char == '?'
return '<CR>:nohlsearch<CR>'
" ... and unmap
else
return '<CR>'
endif
endfunction
function! s:Search()
" let s:on = 1
" 1. Turn on autocmd
" 2. Search (find out if this is blocked by function-search-undo)
" 2.a. Search automatically disables autocmd
endfunction
nnoremap <Plug>(nohai-search-backward) :call s:Search()<CR>
nnoremap <Plug>(nohai-search) :call s:Search()<CR>
nmap g? <Plug>(nohai-search-backward)
nmap g/ <Plug>(nohai-search)
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