Emacs mode/function that wraps operators with spaces

Question

I remember that there was a mode for Emacs, or was it an option, can't recall, that prettified the code by placing space after operators like ,, ., wrapped = with spaces, and some other cools stuff that I can't remember.

I reckon that this is pretty much language-specific issue, but I usually put space after commas, and wrap = with spaces. Any ideas about this mode?

Answer 1

You're probably thinking of smart-operator.el.