string_to_key(char_u *arg, int multi_byte)
{
    if (*arg == '<')
	return find_key_option(arg + 1, TRUE);
    if (*arg == '^')
	return Ctrl_chr(arg[1]);
    if (multi_byte)
	return PTR2CHAR(arg);
    return *arg;
}
string_to_key(char_u *arg, int multi_byte)
{
    if (*arg == '<')
	return find_key_option(arg + 1, TRUE);
    if (*arg == '^')
	return Ctrl_chr(arg[1]);
    if (multi_byte)
	return PTR2CHAR(arg);
    return *arg;
}