vim.api.nvim_create_autocmd({"BufWritePre"}, {
	pattern = "*",
	callback = function(ev)
		local excluded = { 'mail', 'markdown' }
		if vim.tbl_contains(excluded, vim.bo.filetype) then
			return
		end
        save_cursor = vim.fn.getpos(".")
        vim.cmd([[%s/\s\+$//e]])
        vim.fn.setpos(".", save_cursor)
    end,
})

vim.api.nvim_create_autocmd("FileType", {
  pattern = "arduino",
  callback = function()
    vim.opt_local.tabstop = 4
    vim.opt_local.softtabstop = 4
    vim.opt_local.shiftwidth = 4
  end,
})