I have this with yasnippet in emacs. It's more than just simple expansion too. It expands to a skeleton to fill in the blanks, so f expands to a function defini

I have this with yasnippet in emacs. It's more than just simple expansion too. It expands to a skeleton to fill in the blanks, so f expands to a function definition and then allows you to put in parameters, return type, then body or whatever makes sense in the current language.