set completeopt-=preview

	nnoremap <silent><F6> :vsplit<CR><Bar>:CocConfig<CR>

	let g:coc_global_extensions = ['coc-highlight', 'coc-snippets', 'coc-tsserver', 'coc-css', 'coc-html', 'coc-json']

	" Use <cr> to confirm completion, `<C-g>u` means break undo chain at current
	" position. Coc only does snippet and additional edit on confirm.
	if exists('*complete_info')
		inoremap <expr> <cr> complete_info()["selected"] != "-1" ? "\<C-y>" : "\<C-g>u\<CR>"
	else
		imap <expr> <cr> pumvisible() ? "\<C-y>" : "\<C-g>u\<CR>"
	endif

	" use <c-@>for trigger completion
	inoremap <silent><expr> <c-@> coc#refresh()

	" Navigate diagnostics
	nnoremap <silent> <F7> :<C-u>CocList diagnostics<CR>
	nmap <silent> <F8> <Plug>(coc-diagnostic-prev)
	nmap <silent> <F9> <Plug>(coc-diagnostic-next)

	" GoTo code navigation.
	nnoremap <buffer><silent> gd <Plug>(coc-definition)
	nnoremap <buffer><silent> gr <Plug>(coc-references)

	" Use D to show documentation in preview window.
	nnoremap <buffer><silent> D :call <SID>show_documentation()<CR>

	function! s:show_documentation()
		if (index(['vim','help'], &filetype) >= 0)
			execute 'h '.expand('<cword>')
		else
			call CocAction('doHover')
		endif
	endfunction

	" Symbol renaming.
	nnoremap <buffer><leader>rn <Plug>(coc-rename)

	aug Cursor
    		au!
    		" au CursorHold * silent call CocActionAsync('highlight')
    		au User CocJumpPlaceholder call CocActionAsync('showSignatureHelp')
	aug END