Question

I want to map Alt+Shift+] and Alt+Shift+[ to gt and gT (so it works like on Mac)

How do I do it because it doesn’t seem to work if I simply do this:

map <A-S-]> gt

Somehow ] needs to be escaped or something

Answer 1

There is nothing wrong with your definition there. Vim will correctly map that combination but it doesn’t do it in quite the way you expect. What that mapping essentially says is

When Shift + Alt is hit in addition to ]

On a standard keyboard the ] character when combined with Shift will produce }. This means that Vim won’t ever see the ] in combination with Shift but instead sees just }. You can leverage this though to get the behavior you’re looking for. Try the following mappings instead (assuming standard QWERTY keyboard)

:map <A-}> gt
:map <A-{> gT