Mandatory Tasks

Write function that produces output with conversion specifiers c, s, and %. Handle conversion specifiers d, i. Create a man page for your function.

Advanced Tasks

         Handle conversion specifier b.

          Handle conversion specifiers u, o, x, X.

           Use a local buffer of 1024 chars in order to call write as little as possible.

            Handle conversion specifier S.

             Handle conversion specifier p.

             Handle flag characters +, space, and # for non-custom conversion specifiers.

             Handle length modifiers l+ and h for non-custom conversion specifiers.

             Handle the field width for non-custom conversion specifiers.

             Handle the precision for non-custom conversion specifiers.

              Handle the 0 flag character for non-custom conversion specifiers.

              Handle the custom conversion specifier r that prints the reversed string.

                Handle the custom conversion specifier R that prints the rot13'ed string.