add: auto cmd for create folder and file

lua/custom/autocmd.lua

@@ -16,3 +16,18 @@ local term_program = vim.fn.getenv("TERM_PROGRAM")
 if term_program == "WezTerm" then
 	vim.cmd('silent !wezterm cli set-tab-title "' .. _get_folder_name() .. '"')
 end
+
+-- vim.cmd([[
+--   function s:MkNonExDir(file, buf)
+--     if empty(getbufvar(a:buf, '&buftype')) && a:file!~#'\v^\w+\:\/'
+--         let dir=fnamemodify(a:file, ':h')
+--         if !isdirectory(dir)
+--             call mkdir(dir, 'p')
+--         endif
+--     endif
+--     endfunction
+--     augroup BWCCreateDir
+--     autocmd!
+--     autocmd BufWritePre * :call s:MkNonExDir(expand('<afile>'), +expand('<abuf>'))
+--   augroup END
+-- ]])