How do I surround a movement with parenthesis in insert-mode?

[gregorias]

With an insert-mode state like this: val = foo*arg. I would like to get val = foo(arg). It would be nice to type a sequence like <C-G>s$) for that effect.

I know this is easily achievable in the normal or visual mode, but I wonder if it's possible in insert-mode as well. This kind of situation arises quite often in my workflow.

[kylechui]

There currently isn't a mechanism for doing this, although you could try(?) to create your own custom mapping by using the provided <Plug> mappings. I haven't spent any time thinking about this, so I'm also not 100% sure on what that would look like or if it's even feasible. However, I will say that for the use case that you present, the f surround might help if you started out with arg and wanted to surround it with foo( and ).

[gregorias]

Thank you for the idea. I remapped <C-y> to run nvim-surround in normal mode once:

require("which-key").register({
	["<C-y>"] = { "<C-o>ys", "(You) surround with" },
}, { mode = "i", silent = true, noremap = false })