up up

vimrc

@@ -68,6 +68,20 @@ set backupskip=/tmp/*,/private/tmp/*"
 set backupdir=~/.vim-tmp,~/.tmp,~/tmp,/var/tmp,/tmp
 set directory=~/.vim-tmp,~/.tmp,~/tmp,/var/tmp,/tmp
 
+" allow toggling between local and default mode
+function TabToggle()
+  if &expandtab
+    set shiftwidth=4
+    set softtabstop=0
+    set noexpandtab
+  else
+    set shiftwidth=4
+    set softtabstop=4
+    set expandtab
+  endif
+endfunction
+nmap <F9> mz:execute TabToggle()<CR>'z
+
 " Use the OS clipboard by default (on versions compiled with `+clipboard`)
 set clipboard=unnamed