nnoremap <silent> <Leader>9 :9buffer<CR>
nnoremap <silent> <Leader>0 :10buffer<CR>
+" Use real tabs instead of soft tabs.
+if has('eval')
+" Switch from soft tabs to real tabs.
+ function! s:UseTabs()
+ setlocal noexpandtab shiftwidth=8 softtabstop=8
+ endfunction
+ nnoremap <silent> <Leader>t :call <SID>UseTabs()<CR>
+endif
+
" Make last active window the only window. Similar to <C-W> o.
nnoremap <C-W>O <C-W>p<C-W>o