Use Angle Bracket Notation (Fixes #64)

[jpoon]

Easing myself back into the project after a short hiatus with this simple change.

Update: Translating key presses to Vim's angle bracket notation:

ctrl+* becomes <C-*>
escape becomes <Esc>
backspace becomes <BS>
delete becomes <Del>

[johnfn]

Always nice to see you again 😄

Could you actually fix this in the more general way by obliterating ctrl+* from the codebase entirely and replacing all such instances with <c-*>?

It would fix our longest standing bug #64 :)

[jpoon]

Argh, just realized this will break backwards compatibility for those that have used a otherModesKeyBindings/insertModeKeyBindings settings.

I'm OK with having people needing to update their settings but open to alternatives.

[johnfn]

True, but we don't actually document how to do that anywhere (intentionally, since I knew this was gonna happen eventually...)

Ideally we could just show an error to people who we detect have ctrl+* keybindings - say "you need to update your old keybindings to match the new format"

We could even handle both in the keybindings parser.

[jpoon]

That should do it. Moved the angle bracket translation logic to util.ts where it is now called by:

1. extension.ts where the vscode key presses come in
2. remapper.ts to remap keys for insertModeKeyBindings and otherModesKeyBindings (ie. we have backwards compat)

[johnfn]

Can we make this <esc> to stay in line with Vim?

[jpoon]

Are you referring to the capitalization? VimDocs have it as a capital E so following suit.

[johnfn]

I didn't know that! Okay, that's fine.