docs: Update example plugin file to use native snippets with supertab. (#66)

lua/plugins/example.lua

@@ -192,14 +192,6 @@ return {
   },
 
   -- Use <tab> for completion and snippets (supertab)
-  -- first: disable default <tab> and <s-tab> behavior in LuaSnip
-  {
-    "L3MON4D3/LuaSnip",
-    keys = function()
-      return {}
-    end,
-  },
-  -- then: setup supertab in cmp
   {
     "hrsh7th/nvim-cmp",
     dependencies = {
@@ -213,17 +205,16 @@ return {
         return col ~= 0 and vim.api.nvim_buf_get_lines(0, line - 1, line, true)[1]:sub(col, col):match("%s") == nil
       end
 
-      local luasnip = require("luasnip")
       local cmp = require("cmp")
 
       opts.mapping = vim.tbl_extend("force", opts.mapping, {
         ["<Tab>"] = cmp.mapping(function(fallback)
           if cmp.visible() then
             cmp.select_next_item()
-            -- You could replace the expand_or_jumpable() calls with expand_or_locally_jumpable()
-            -- this way you will only jump inside the snippet region
-          elseif luasnip.expand_or_jumpable() then
-            luasnip.expand_or_jump()
+          elseif vim.snippet.active({ direction = 1 }) then
+            vim.schedule(function()
+              vim.snippet.jump(1)
+            end)
           elseif has_words_before() then
             cmp.complete()
           else
@@ -233,8 +224,10 @@ return {
         ["<S-Tab>"] = cmp.mapping(function(fallback)
           if cmp.visible() then
             cmp.select_prev_item()
-          elseif luasnip.jumpable(-1) then
-            luasnip.jump(-1)
+          elseif vim.snippet.active({ direction = -1 }) then
+            vim.schedule(function()
+              vim.snippet.jump(-1)
+            end)
           else
             fallback()
           end