This is a simple implementation of printf function that formats and prints data
The _printf() function produces output according to a format which is described below. This function write its output to the stdout, the standard output stream. Returns the count of printed characters when the function is successful and -1 when the function fails.
The available convertion specifiers are:
%c: Prints a single character. %s: Prints a string of characters. %d: Prints integers. %i: Prints integers. %b: Prints the binary representation of an unsigned decimal. %u: Prints unsigned integers %x: Prints the hexadecial representation of an unsigned decimal in lowercase letters %X:Prints the hexadecial representation of an unsigned decimal in uppercase letters %r: Prints a reversed string %R: Prints the Rot13 interpretation of a string