+nnoremap <buffer> gD :YcmCompleter GoToReferences<CR>
+
+nnoremap <buffer> <leader>fi :YcmCompleter FixIt<CR>
+nnoremap <buffer> <leader>fr :YcmCompleter RefactorRename<space>
+
+" format with =
+call operator#user#define_ex_command('ycmcompleter-format', 'YcmCompleter Format')
+map <buffer> = <Plug>(operator-ycmcompleter-format)
+vnoremap <buffer> = :YcmCompleter Format<CR>
+" restore = mapping to g=
+nnoremap <buffer>g= =
+vnoremap <buffer>g= =
+
+" hover popup
+let g:ycm_auto_hover = ''
+let b:ycm_hover = { 'command': 'GetDoc', 'syntax': &filetype }
+nmap <buffer> gh <plug>(YCMHover)
+nmap <buffer> gH :YcmCompleter GetDoc<CR>
+
+setlocal errorformat=
+" TODO I don't remember these errorformat or what they match, maybe CMake? {{{
+setlocal errorformat+=\ %##%n\ %m\ %f:%l:%c
+setlocal errorformat+=\ %##%n\ %m\ %f
+setlocal errorformat+=%n
+"}}}
+setlocal errorformat+=%f:%l:%c:\ %trror:\ %m
+setlocal errorformat+=%f:%l:%c:\ %tarning:\ %m
+setlocal errorformat+=%D%*\\a[%*\\d]:\ Entering\ directory\ [`']%f'
+setlocal errorformat+=%X%*\\a[%*\\d]:\ Leaving\ directory\ [`']%f'
+setlocal errorformat+=%D%*\\a:\ Entering\ directory\ [`']%f'
+setlocal errorformat+=%X%*\\a:\ Leaving\ directory\ [`']%f'
+setlocal errorformat+=%*[^[]\[%tRROR\]%m\ \[%f:%l\]
+setlocal errorformat+=%*[^[]\[%tARNING\]%m\ \[%f:%l\]
+
+packadd termdebug
+let g:termdebug_wide = 1
+function! s:Debug(...)
+ tabedit %
+ let t:debug_tab=1
+ au BufDelete !gdb ++once if exists('t:debug_tab') | tabclose | endif
+
+ "TODO restore mappings
+ "TODO make mappings local to source buffer
+ nnoremap <buffer> <C-T> :call TermDebugSendCommand('advance -source '.expand('%').' -line '.line("."))<CR>
+ nnoremap <buffer> <C-S> :Step<CR>
+ nnoremap <buffer> <C-N> :Over<CR>
+ nnoremap <buffer> <C-F> :Finish<CR>
+endfunction
+command! -nargs=* -complete=file -bang Debug call <SID>Debug() | Termdebug<bang> <args>
+command! -nargs=+ -complete=file -bang DebugCommand call <SID>Debug() | TermdebugCommand<bang> <args>