my demo first config lua

lua/alpha/snips/ft/lua.lua

@@ -0,0 +1,69 @@
+local ls = require "luasnip"
+
+-- local snippet = ls.s
+local snippet_from_nodes = ls.sn
+local c = ls.choice_node
+local d = ls.dynamic_node
+local i = ls.insert_node
+local f = ls.function_node
+local t = ls.text_node
+
+local fmt = require("luasnip.extras.fmt").fmt
+
+local require_var = function(args, _)
+  local text = args[1][1] or ""
+  local split = vim.split(text, ".", { plain = true })
+
+  local options = {}
+  for len = 0, #split - 1 do
+    table.insert(options, t(table.concat(vim.list_slice(split, #split - len, #split), "_")))
+  end
+
+  return snippet_from_nodes(nil, {
+    c(1, options),
+  })
+end
+
+local newline = function(text)
+  return t { "", text }
+end
+
+return {
+  req = fmt([[local {} = require("{}")]], {
+    d(2, require_var, { 1 }),
+    i(1),
+  }),
+  lf = {
+    desc = "table function",
+    "local ",
+    i(1),
+    " = function(",
+    i(2),
+    ")",
+    newline "  ",
+    i(0),
+    newline "end",
+  },
+
+  preq = fmt(
+    [[local ok, {} = pcall(require, "{}")
+if not ok then
+    return
+end]],
+    {
+      f(function(args)
+        return args[1][1]
+      end, { 1 }),
+      i(1),
+    }
+  ),
+
+  plugin = fmt(
+    [[return {{
+    "{}"
+}}]],
+    {
+      i(1, "plugin"),
+    }
+  ),
+}