VIM comes with a nice Ada mode - however you can always improve. I have created an imporved Ada mode for vim and uploaded it to the vim side where download from

Here a short description of what I did:

syntax/ada.vim #

Attributes #

Attributes can be detected by regular expressing. That way “implementation defined” Attributes are found as well:

 syntax match adaAttribute "'\w\{2,\}\>"

   HiLink adaAttribute	   Tag

Folding #

Newer VIM’s have this nice folding feature. Since most Ada programs are nicely layouted the foldmethod=indent should be ok:

 if exists("ada_folding")
   setlocal foldmethod=indent
   setlocal foldignore=--
   setlocal commentstring=--\ \ %25s
   setlocal tabstop=8
   setlocal softtabstop=3
   setlocal shiftwidth=3
 endif

Don’t forget to define ada_folding inside your ~/.vimrc file.