Vim had "extensions" before TextMate even existed. I don't speak Ruby so I've never been able to alter much of anything in TextMate beside creating/customizing

Vim had "extensions" before TextMate even existed. I don't speak Ruby so I've never been able to alter much of anything in TextMate beside creating/customizing snippets in my 4 years of heavy usage (user ID in the lower 4 digits). However, picking up vimscript for my small needs was relatively easy.