syntax error?

config/default.nix

@@ -26,6 +26,8 @@
 
       web-devicons.enable = true;
 
+      cmp-nvim-lsp.enable = true;
+
       lsp = {
         enable = true;
         servers = {
@@ -41,6 +43,104 @@
           bashls.enable = true;
           #css
           cssls.enable = true;
+
+        };
+        
+        keymaps = {
+        # Diagnostic keymaps
+            diagnostic = {
+                "<leader>q" = {
+                    #mode = "n";
+                    action = "setloclist";
+                    desc = "Open diagnostic [Q]uickfix list";
+                };
+            };
+
+            extra = [
+                # Jump to the definition of the word under your cusor.
+                #  This is where a variable was first declared, or where a function is defined, etc.
+                #  To jump back, press <C-t>.
+                {
+                    mode = "n";
+                    key = "gd";
+                    action.__raw = "require('telescope.builtin').lsp_definitions";
+                    options = {
+                        desc = "LSP: [G]oto [D]efinition";
+                    };
+                }
+                # Find references for the word under your cursor.
+                {
+                    mode = "n";
+                    key = "gr";
+                    action.__raw = "require('telescope.builtin').lsp_references";
+                    options = {
+                        desc = "LSP: [G]oto [R]eferences";
+                    };
+                }
+                # Jump to the implementation of the word under your cursor.
+                #  Useful when your language has ways of declaring types without an actual implementation.
+                {
+                    mode = "n";
+                    key = "gI";
+                    action.__raw = "require('telescope.builtin').lsp_implementations";
+                    options = {
+                        desc = "LSP: [G]oto [I]mplementation";
+                    };
+                }
+                # Jump to the type of the word under your cursor.
+                #  Useful when you're not sure what type a variable is and you want to see
+                #  the definition of its *type*, not where it was *defined*.
+                {
+                    mode = "n";
+                    key = "<leader>D";
+                    action.__raw = "require('telescope.builtin').lsp_type_definitions";
+                    options = {
+                        desc = "LSP: Type [D]efinition";
+                    };
+                }
+                # Fuzzy find all the symbols in your current document.
+                #  Symbols are things like variables, functions, types, etc.
+                {
+                    mode = "n";
+                    key = "<leader>ds";
+                    action.__raw = "require('telescope.builtin').lsp_document_symbols";
+                    options = {
+                        desc = "LSP: [D]ocument [S]ymbols";
+                    };
+                }
+                # Fuzzy find all the symbols in your current workspace.
+                #  Similar to document symbols, except searches over your entire project.
+                {
+                    mode = "n";
+                    key = "<leader>ws";
+                    action.__raw = "require('telescope.builtin').lsp_dynamic_workspace_symbols";
+                    options = {
+                        desc = "LSP: [W]orkspace [S]ymbols";
+                    };
+                }
+            ];
+
+            lspBuf = {
+                # Rename the variable under your cursor.
+                #  Most Language Servers support renaming across files, etc.
+                "<leader>rn" = {
+                    action = "rename";
+                    desc = "LSP: [R]e[n]ame";
+                };
+                # Execute a code action, usually your cursor needs to be on top of an error
+                # or a suggestion from your LSP for this to activate.
+                "<leader>ca" = {
+                    #mode = "n";
+                    action = "code_action";
+                    desc = "LSP: [C]ode [A]ction";
+                };
+                # WARN: This is not Goto Definition, this is Goto Declaration.
+                #  For example, in C this would take you to the header.
+                "gD" = {
+                    action = "declaration";
+                    desc = "LSP: [G]oto [D]eclaration";
+                };
+            };
         };
       };
 
@@ -50,16 +150,24 @@
         settings = {
             sources = [
                 { name = "nvim_lsp"; }
-                { name = "path"; }
+#                { name = "path"; }
-                { name = "buffer"; }
+#                { name = "buffer"; }
-                { name = "luasnip"; }
+#                { name = "luasnip"; }
-                { name = "cmdline"; }
+#                { name = "cmdline"; }
             ];
 
+            completion = {
+                completeopt = "menu,menuone,noinsert";
+            };
+
             mapping = {
-                "[ '<C-u>' ]" = "cmp.mapping.scroll_docs(-4)";
+                "<C-n>" = "cmp.mapping.select_next_item()";
-                "[ '<C-d>' ]" = "cmp.mapping.scroll_docs(4)";
+                "<C-p>" = "cmp.mapping.select_prev_item()";
-#                """""""""""""""""""""""""""""""""""""""""""""""""""
+                "<C-y>" = "cmp.mapping.confirm({ select = true })";
+                "<C-Space>" = "cmp.mapping.complete()";
+                "<C-e>" = "cmp.mapping.abort()";
+                "<C-b>" = "cmp.mapping.scroll_docs(-4)";
+                "<C-f>" = "cmp.mapping.scroll_docs(4)";
             };
 
             snippet.expand = ''
@@ -169,6 +277,23 @@
         action = ":m '<-2<CR>gv=gv";
     }
 
+    {
+        mode = "n";
+        key = "<leader>y";
+        action = "\"+y";
+    }
+
+    {
+        mode = "v";
+        key = "<leader>y";
+        action = "\"+y";
+    }
+    
+    {
+        mode = "n";
+        key = "<leader>s";
+        action = ":%s/\\<<C-r><C-w>\\>/<C-r><C-w>/gI<Left><Left><Left>";
+    }
   ];
 
   extraConfigLua = ''