使用函数指针数组编写printf

I am trying to code the printf function. The problem is that my code is getting very messy and I need some help to try to make it organized and working (hopefully). I have been told that I should use "array of function pointers" so I tried below (ft_print_it) as you can see but I do not know how to how to structure my code so that I can use a big array of function pointer to put every function like int_decimal_octal and friends. Can you help me on that? Where can I call them from?I am trying to code the printf function. The pr