Adding keymaps for specific surround commands

[firubat]

I'm trying to add keymaps in visual mode of the form s( which will add surrounding (). I tried the direct approach:

vim.keymap.set({ "x" }, "s(", "sa(", { desc = "Surround selection with ()" })

but it results in simply inserting a(.

I guess I should call the surround function directly, and not via the keymap sa, but I didn't find out how to do it from the docs. Any help appreciated.

[echasnovski]

By default vim.keymap.set() treats keys in right hand side as if they have default meaning, i.e. no remap, i.e. "noremap".
You can achieve what you want by adding remap = true option. Like this:

vim.keymap.set({ "x" }, "s(", "sa(", { remap = true, desc = "Surround selection with ()" })

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Just in case: this approach for adding surrounding will work only in Visual mode. In Normal mode there needs to be a target (textobject/motion) after sa.

[firubat]

Thanks!

Just in case: this approach for adding surrounding will work only in Visual mode. In Normal mode there needs to be a target (textobject/motion) after sa.

Yes of course, for normal mode I might do some default mapping such as

vim.keymap.set({ "n" }, "s(", "saiW(", { remap = true, desc = "Surround WORD with ()" })