https://vi.stackexchange.com/questions/39967/cannot-open-terminal-ini-nvim/39968

set number
set autoindent
set tabstop=4
set shiftwidth=4
set smarttab
set softtabstop=4
set mouse=a
set encoding=UTF-8

call plug#begin()
Plug 'tpope/vim-surround' " Surrounding ysw)
Plug 'preservim/nerdtree' " NerdTree
Plug 'tpope/vim-commentary' " For Commenting gcc & gc
Plug 'vim-airline/vim-airline' " Status bar
Plug 'rafi/awesome-vim-colorschemes' " Retro Scheme
Plug 'ryanoasis/vim-devicons' " Developer Icons
Plug 'terryma/vim-multiple-cursors' " CTRL + N for multiple cursors
Plug 'preservim/tagbar' " Tagbar for code navigation
Plug 'vim-airline/vim-airline-themes'
Plug 'nvim-lua/plenary.nvim'
Plug 'nvim-telescope/telescope.nvim', { 'tag': '0.1.1' }
Plug 'xiyaowong/nvim-transparent'
Plug 'akinsho/toggleterm.nvim', {'tag' : '*'}
call plug#end()

nmap <F8> :TagbarToggle<CR>

colorscheme jellybeans

nnoremap <C-f> :NERDTreeFocus<CR>
nnoremap <C-n> :NERDTree<CR>
nnoremap <C-t> :NERDTreeToggle<CR>
noremap <C-b> :TerminalSplit bash<CR>
noremap <C-v> :TerminalVSplit bash<CR>
noremap <C-n> :TerminalTab bash<CR>

let g:NERDTreeDirArrowExpandable="+"
let g:NERDTreeDirArrowCollapsible="~"

" air-line
let g:airline_powerline_fonts = 1

if !exists('g:airline_symbols')
    let g:airline_symbols = {}
endif

" unicode symbols
let g:airline_left_sep = '»'
let g:airline_left_sep = '▶'
let g:airline_right_sep = '«'
let g:airline_right_sep = '◀'
let g:airline_symbols.linenr = '␊'
let g:airline_symbols.linenr = '␤'
let g:airline_symbols.linenr = '¶'
let g:airline_symbols.branch = '⎇'
let g:airline_symbols.paste = 'ρ'
let g:airline_symbols.paste = 'Þ'
let g:airline_symbols.paste = '∥'
let g:airline_symbols.whitespace = 'Ξ'

" airline symbols
let g:airline_left_sep = ''
let g:airline_left_alt_sep = ''
let g:airline_right_sep = ''
let g:airline_right_alt_sep = ''
let g:airline_symbols.branch = ''
let g:airline_symbols.readonly = ''
let g:airline_symbols.linenr = ''

let g:airline#extensions#tabline#enabled = 1

"Create a funtion to get the sections contents, name is irrelevant
function! GetSectionContents()
  " Will be refreshed often
  return 'hello world'
endfunction

"Create vim-airline part
call airline#parts#define_function('func','GetSectionContent')

"Replace section y with output of parts function
let g:airline_section_y = airline#section#create_right(['','func'])

let g:airline#extensions#default#layout = [
    \ [ 'a', 'b', 'c' ],
    \ [ 'x', 'z', 'error', 'warning', 'y' ]
    \ ]

" Find files using Telescope command-line sugar.
nnoremap <leader>ff <cmd>Telescope find_files<cr>
nnoremap <leader>fg <cmd>Telescope live_grep<cr>
nnoremap <leader>fb <cmd>Telescope buffers<cr>
nnoremap <leader>fh <cmd>Telescope help_tags<cr>

let g:transparent_enabled = v:true

" load toggleterm
lua require("toggleterm").setup()