"Map the leader key to SPACE
let mapleader="\<SPACE>"

set showmatch           " Show matching brackets.
set number              " Show the line numbers on the left side.
set formatoptions+=o    " Continue comment marker in new lines.
set expandtab           " Insert spaces when TAB is pressed.
set tabstop=4           " Render TABs using this many spaces.
set shiftwidth=4        " Indentation amount for < and > commands.
set nojoinspaces        " Prevents inserting two spaces after punctuation on a join (J)

" More natural splits
set splitbelow          " Horizontal split below current.
set splitright          " Vertical split to right of current.
if !&scrolloff
  set scrolloff=3       " Show next 3 lines while scrolling.
endif
if !&sidescrolloff
  set sidescrolloff=5   " Show next 5 columns while side-scrolling.
endif
set nostartofline       " Do not jump to first character with page commands.
if &listchars ==# 'eol:$'
  set listchars=tab:>\ ,trail:-,extends:>,precedes:<,nbsp:+
endif
set list                " Show problematic characters.
" Also highlight all tabs and trailing whitespace characters.
highlight ExtraWhitespace ctermbg=darkgreen guibg=darkgreen
match ExtraWhitespace /\s\+$\|\t/
set ignorecase          " Make searching case insensitive
set smartcase           " ... unless the query has capital letters.
set gdefault            " Use 'g' flag by default with :s/foo/bar/.

" Use <C-L> to clear the highlighting of :set hlsearch.
if maparg('<C-L>', 'n') ==# ''
  nnoremap <silent> <C-L> :nohlsearch<CR><C-L>
endif

" Search and Replace
nmap <Leader>s :%s//g<Left><Left>

" Relative numbering
function! NumberToggle()
  if(&relativenumber == 1)
    set nornu
    set number
  else
    set rnu
  endif
endfunc

" Toggle between normal and relative numbering.
nnoremap <leader>r :call NumberToggle()<cr>

command W :execute ':silent w !sudo tee % > /dev/null' | :edit!