ultra folding experience

lua/znvim/keymaps.lua

@@ -37,3 +37,7 @@ vim.keymap.set("n", "<S-h>", "<cmd>bprevious<cr>", { desc = "prev buffer" })
 vim.keymap.set("n", "<S-l>", "<cmd>bnext<cr>",     { desc = "next buffer" })
 vim.keymap.set("n", "[b",    "<cmd>bprevious<cr>", { desc = "prev buffer" })
 vim.keymap.set("n", "]b",    "<cmd>bnext<cr>",     { desc = "next buffer" })
+
+vim.keymap.set("n", "<leader>uf",  function ()
+    vim.opt.foldcolumn = vim.opt.foldcolumn:get() == "0" and "4" or "0"
+end, { desc = "toggle fold column" })

lua/znvim/plugins/editor.lua

@@ -119,4 +119,20 @@ return {
         },
     },
 
+
+    { -- better folding
+        "https://github.com/kevinhwang91/nvim-ufo",
+        dependencies = {
+            "https://github.com/kevinhwang91/promise-async",
+        },
+        event = "BufReadPost",
+        config = function()
+            local ufo = require("ufo")
+            -- Using ufo provider need remap `zR` and `zM`. If Neovim is 0.6.1, remap yourself
+            vim.keymap.set("n", "zR", ufo.openAllFolds)
+            vim.keymap.set("n", "zM", ufo.closeAllFolds)
+            ufo.setup()
+        end,
+    },
+
 }