Add terminal support for Emacs-like keymap

[LitoMore]

Describe the solution you'd like?

In most place of macOS, we can use Emacs-like keymaps to control our cursor. Such as moving cursor, deleting characters...

But in Warp. I cannot use control + n and control + p to replace arrow keys.

Here is some information about the macOS built-in Emacs-like keymaps: https://jblevins.org/log/kbd

Here is a simple list to let you understand the habits of Emacs users:

Any textarea means any textarea on macOS, such as the textarea in browser, Notes app...

Keymap	Function	Any textarea	iTerm / Terminal.app	Warp
control + n	Down arrow	Yes	Yes	No
control + p	Up arrow	Yes	Yes	No
control + b	Left arrow	Yes	Yes	No
control + f	Right arrow	Yes	Yes	No
control + t	Switch characters	Yes	Yes	No
control + d	Delete right side character	Yes	Yes	No
control + g	Cancel / ESC	Yes	Yes	No
control + h	Delete left side character	Yes	Yes	Yes
control + a	Move to start of line	Yes	Yes	Yes
control + e	Move to end of line	Yes	Yes	Yes
control + u	Delete line	Yes	Yes	Yes
control + j	Return	No	Yes	No

Is your feature request related to a problem? Please describe.

I strongly recommend finding an Emacs and Vim expert in your team to be a consultant for this feature.

If there is not. I would like to help.

Additional context

No response

[zheng]

Hey @LitoMore, thanks for the resource & detailed report!

@charlespierce is working on custom keybindings, and I imagine an emacs set of keybindings will be one of the first things people want. He may reach out for help!

[srl295]

complete blocker for me. I had to repeat my workflow several times in slow motion to figure out what of my ingrained muscle memory was telling Warp to suddenly shut the tab.

Control-P, Control-A, Control-F, Control-D

I'll come back and try Warp again when this is fixed!

[beorn]

@elviskahoro The new custom keybindings unfortunately does not support bindings for up/down/left/right - which are the main emacs-like keybindings people were requesting. It's not about rebinding up/down/left/right but allowing ctrl p/n/b/f as alternative keybindings for that.