In Vim, it's a quick 3-character command to change what's inside the current quoted string (e.g., ci"), but is there a simple way to change what type of quotes are currently surrounding the cursor?
Sometimes I need to go from "blah" to """blah""" or "blah" to 'blah' (in Python source code) and I'd ideally like to do it quickly using default key bindings.
On
Surround.vim is great, but I don't think it'll handle your triple-quoted needs directly.
The way I've done stuff along these lines (when surround wasn't appropriate) was to use %, make the change, then double-backtick to go back to the starting point. E.g. if the cursor is somewhere in a single-quoted string, do f'%, make the change, then double-backtick and ..
Try the surround.vim plugin. I find it an essential addition to any vim installation.