No effect

[mcandre]

I followed the instructions for installing vim alt mappings for Vundle, including ensuring that Terminal.app treats the Option key as Meta:

https://github.com/bruno-/vim-alt-mappings#installation

Hmm, are you sure we should install vader instead of vim-alt-mappings?

Then I reloaded Vim and tried to define a <M-;> hotkey for nerd commenter gc, and a <M-lt> hotkey for file nagivation gg. But neither Alt hotkey has any effect. Nor are any error messages displaying.

I'm confused--Emacs is able to use the Alt hotkey without trouble, it's just Vim that's unable to.

[bruno-]

Hey, those keys: <M-;> and <M-lt> are really tricky. I'm really not sure if they can work in theory.

You've probably noticed this plugin is labeled as experimental and I advise against using it in day-to-day work. It's published mostly so that other people can get info about alt mappings and learn how tricky this is.

Anyway, because of that I won't be investing significant energy into debugging.