fix: Allow disabling aliases.

Author: kylechui

lua/nvim-surround/config.lua

@@ -541,10 +541,10 @@ end
 
 -- Translates `alias` into the internal form.
 ---@param user_alias false|string|string[] The user-provided `alias`.
----@return string|string[]|nil @The translated `alias`.
+---@return false|string|string[] @The translated `alias`.
 M.translate_alias = function(user_alias)
     if not user_alias then
-        return nil
+        return user_alias
     end
     return user_alias
 end

tests/configuration_spec.lua

@@ -557,6 +557,18 @@ describe("configuration", function()
         check_lines({ "wbHello, world!" })
     end)
 
+    it("can disable aliases", function()
+        require("nvim-surround").buffer_setup({
+            aliases = {
+                s = false,
+            },
+        })
+
+        set_lines({ "([{<>}])" })
+        vim.cmd("normal dss")
+        check_lines({ "([{<>}])" })
+    end)
+
     it("can cancel surrounds, without moving the cursor", function()
         require("nvim-surround").buffer_setup({
             move_cursor = false,