My VIMRC

set et
set ai
set nu
set ts=2
set sw=4
set sts=4
set guicursor=
set backspace=indent,eol,start
set cursorline
set termguicolors
set list
set listchars=tab:→\ ,space:\ ,trail:·
set showbreak=↪\

"set listchars=tab:→\ ,space:·,trail:·
"set listchars=tab:→\ ,eol:↲,space:·,trail:·,nbsp:␣,extends:⟩,precedes:⟨
"set relativenumber
"set colorcolumn=80

let g:floaterm_position="top"
let g:floaterm_height=0.9
let g:floaterm_width=0.9
let g:floaterm_gitcommit='tabe'

call plug#begin('~/.local/share/plugged-nvim')

"Plug 'git@github.com:maxmellon/vim-jsx-pretty'
Plug 'git@github.com:vim-airline/vim-airline'
Plug 'git@github.com:sheerun/vim-polyglot'
Plug 'git@github.com:preservim/nerdtree'
Plug 'git@github.com:Xuyuanp/nerdtree-git-plugin'
Plug 'git@github.com:junegunn/fzf', { 'do': { -> fzf#install() } }
Plug 'git@github.com:junegunn/fzf.vim'
Plug 'git@github.com:editorconfig/editorconfig-vim'
Plug 'git@github.com:tpope/vim-sleuth'
Plug 'git@github.com:neoclide/coc.nvim', { 'branch': 'release' }
Plug 'git@github.com:voldikss/vim-floaterm'
Plug 'git@github.com:morhetz/gruvbox'
Plug 'git@github.com:christophermca/meta5'
Plug 'git@github.com:jdsimcoe/abstract.vim'

call plug#end()

nnoremap <silent> <C-s> :w<CR>
inoremap <silent> <C-s> <Esc>:w<CR>
nnoremap <silent> <C-n> :NERDTreeToggle<CR>
nnoremap <silent> <C-q> :NERDTreeFind<CR>
nnoremap <silent> <C-h> :tabp<CR>
nnoremap <silent> <C-j> :tabnew<CR>
nnoremap <silent> <C-k> :tabc<CR>
inoremap <silent> <C-l> <Esc>:tabn<CR>
nnoremap <silent> <C-l> :tabn<CR>
nnoremap <silent> <C-p> :Files<CR>
nnoremap <silent> <C-y> :FloatermToggle<CR>
tnoremap <silent> <C-y> <C-\><C-n>:FloatermToggle<CR>

" The leader key is <\>
nnoremap <silent> <leader>n :set nu!<CR>
nnoremap <silent> <leader>rs :set colorcolumn=80<CR>
nnoremap <silent> <leader>rh :set colorcolumn=<CR>
nnoremap <silent> <leader>rl :set relativenumber!<CR>
nnoremap <silent> <leader>2 :set ts=2 sw=2 sts=2<CR>
nnoremap <silent> <leader>4 :set ts=4 sw=4 sts=4<CR>

colorscheme meta5

" Close internal terminal without showing exit code
if has('nvim')
    au TermClose * call feedkeys("\<Esc>")
endif

"==============================================================================
" Settings from https://github.com/neoclide/coc.nvim
"==============================================================================

" Set internal encoding of vim, not needed on neovim, since coc.nvim using some
" unicode characters in the file autoload/float.vim
set encoding=utf-8

" TextEdit might fail if hidden is not set.
set hidden

" Some servers have issues with backup files, see #649.
set nobackup
set nowritebackup

" Give more space for displaying messages.
set cmdheight=2

" Having longer updatetime (default is 4000 ms = 4 s) leads to noticeable
" delays and poor user experience.
set updatetime=300

" Don't pass messages to |ins-completion-menu|.
set shortmess+=c

" Always show the signcolumn, otherwise it would shift the text each time
" diagnostics appear/become resolved.
if has("nvim-0.5.0") || has("patch-8.1.1564")
  " Recently vim can merge signcolumn and number column into one
  set signcolumn=number
else
  set signcolumn=yes
endif

" Use tab for trigger completion with characters ahead and navigate.
" NOTE: Use command ':verbose imap <tab>' to make sure tab is not mapped by
" other plugin before putting this into your config.
inoremap <silent><expr> <TAB>
      \ pumvisible() ? "\<C-n>" :
      \ <SID>check_back_space() ? "\<TAB>" :
      \ coc#refresh()
inoremap <expr><S-TAB> pumvisible() ? "\<C-p>" : "\<C-h>"

function! s:check_back_space() abort
  let col = col('.') - 1
  return !col || getline('.')[col - 1]  =~# '\s'
endfunction

" Use <c-space> to trigger completion.
if has('nvim')
  inoremap <silent><expr> <c-space> coc#refresh()
else
  inoremap <silent><expr> <c-@> coc#refresh()
endif

" Make <CR> auto-select the first completion item and notify coc.nvim to
" format on enter, <cr> could be remapped by other vim plugin
inoremap <silent><expr> <cr> pumvisible() ? coc#_select_confirm()
                              \: "\<C-g>u\<CR>\<c-r>=coc#on_enter()\<CR>"

" Use `[g` and `]g` to navigate diagnostics
" Use `:CocDiagnostics` to get all diagnostics of current buffer in location list.
nmap <silent> [g <Plug>(coc-diagnostic-prev)
nmap <silent> ]g <Plug>(coc-diagnostic-next)

" GoTo code navigation.
nmap <silent> gd <Plug>(coc-definition)
nmap <silent> gy <Plug>(coc-type-definition)
nmap <silent> gi <Plug>(coc-implementation)
nmap <silent> gr <Plug>(coc-references)

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

function! s:show_documentation()
  if (index(['vim','help'], &filetype) >= 0)
    execute 'h '.expand('<cword>')
  elseif (coc#rpc#ready())
    call CocActionAsync('doHover')
  else
    execute '!' . &keywordprg . " " . expand('<cword>')
  endif
endfunction

" Highlight the symbol and its references when holding the cursor.
autocmd CursorHold * silent call CocActionAsync('highlight')

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

" Formatting selected code.
xmap <leader>f  <Plug>(coc-format-selected)
nmap <leader>f  <Plug>(coc-format-selected)

augroup mygroup
  autocmd!
  " Setup formatexpr specified filetype(s).
  autocmd FileType typescript,json setl formatexpr=CocAction('formatSelected')
  " Update signature help on jump placeholder.
  autocmd User CocJumpPlaceholder call CocActionAsync('showSignatureHelp')
augroup end

" Applying codeAction to the selected region.
" Example: `<leader>aap` for current paragraph
xmap <leader>a  <Plug>(coc-codeaction-selected)
nmap <leader>a  <Plug>(coc-codeaction-selected)

" Remap keys for applying codeAction to the current buffer.
nmap <leader>ac  <Plug>(coc-codeaction)
" Apply AutoFix to problem on the current line.
nmap <leader>qf  <Plug>(coc-fix-current)

" Map function and class text objects
" NOTE: Requires 'textDocument.documentSymbol' support from the language server.
xmap if <Plug>(coc-funcobj-i)
omap if <Plug>(coc-funcobj-i)
xmap af <Plug>(coc-funcobj-a)
omap af <Plug>(coc-funcobj-a)
xmap ic <Plug>(coc-classobj-i)
omap ic <Plug>(coc-classobj-i)
xmap ac <Plug>(coc-classobj-a)
omap ac <Plug>(coc-classobj-a)

" Remap <C-f> and <C-b> for scroll float windows/popups.
if has('nvim-0.4.0') || has('patch-8.2.0750')
  nnoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? coc#float#scroll(1) : "\<C-f>"
  nnoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? coc#float#scroll(0) : "\<C-b>"
  inoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? "\<c-r>=coc#float#scroll(1)\<cr>" : "\<Right>"
  inoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? "\<c-r>=coc#float#scroll(0)\<cr>" : "\<Left>"
  vnoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? coc#float#scroll(1) : "\<C-f>"
  vnoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? coc#float#scroll(0) : "\<C-b>"
endif

" Use CTRL-S for selections ranges.
" Requires 'textDocument/selectionRange' support of language server.
"nmap <silent> <C-s> <Plug>(coc-range-select)
"xmap <silent> <C-s> <Plug>(coc-range-select)

" Add `:Format` command to format current buffer.
command! -nargs=0 Format :call CocAction('format')

" Add `:Fold` command to fold current buffer.
command! -nargs=? Fold :call     CocAction('fold', <f-args>)

" Add `:OR` command for organize imports of the current buffer.
command! -nargs=0 OR   :call     CocAction('runCommand', 'editor.action.organizeImport')

" Add (Neo)Vim's native statusline support.
" NOTE: Please see `:h coc-status` for integrations with external plugins that
" provide custom statusline: lightline.vim, vim-airline.
set statusline^=%{coc#status()}%{get(b:,'coc_current_function','')}

" Mappings for CoCList
" Show all diagnostics.
nnoremap <silent><nowait> <space>a  :<C-u>CocList diagnostics<cr>
" Manage extensions.
nnoremap <silent><nowait> <space>e  :<C-u>CocList extensions<cr>
" Show commands.
nnoremap <silent><nowait> <space>c  :<C-u>CocList commands<cr>
" Find symbol of current document.
nnoremap <silent><nowait> <space>o  :<C-u>CocList outline<cr>
" Search workspace symbols.
nnoremap <silent><nowait> <space>s  :<C-u>CocList -I symbols<cr>
" Do default action for next item.
nnoremap <silent><nowait> <space>j  :<C-u>CocNext<CR>
" Do default action for previous item.
nnoremap <silent><nowait> <space>k  :<C-u>CocPrev<CR>
" Resume latest coc list.
nnoremap <silent><nowait> <space>p  :<C-u>CocListResume<CR>