0x11. C - printf
Writing our own printf function, under ALX Low Level Programming
Group project by: Emmanuel Asiedu and Priscilla Yartey.
Task 0:
Write a function _printf that produces output according to a format string. It should handle conversion specifiers %c, %s, and %%.
Task 1:
Extend the _printf function to handle conversion specifiers %d and %i, which print signed integers.
Task 2:
Add support for a custom conversion specifier %b, which converts an unsigned integer argument to binary.
Task 3:
Extend _printf to handle conversion specifiers %u, %o, %x, and %X, which print unsigned integers in decimal, octal, and hexadecimal format (lowercase and uppercase).
Task 4:
Optimize the _printf function by using a local buffer of 1024 characters to minimize the number of calls to write.
Task 5:
Handle the custom conversion specifier %S, which prints strings and represents non-printable characters (ASCII value less than 32 or greater than or equal to 127) as \x followed by the ASCII code value in hexadecimal (uppercase).
Task 6:
Handle the conversion specifier %p, which prints pointers in hexadecimal format.
Task 7:
Add support for the flag characters +, space, and # for non-custom conversion specifiers.
Task 8:
Handle the length modifiers l and h for non-custom conversion specifiers (d, i, u, o, x, X).
Task 9: Implement handling of the field width for non-custom conversion specifiers.
Task 10: Handle the precision for non-custom conversion specifiers.
Task 11:
Add support for the 0 flag character for non-custom conversion specifiers.
Task 12:
Implement handling of the - flag character for non-custom conversion specifiers.
Task 13:
Handle the custom conversion specifier %r, which prints the reversed string.
Task 14:
Implement handling of the custom conversion specifier %R, which prints the string in ROT13 encoding.
Task 15: Ensure that all the above options work together seamlessly, allowing for multiple combinations of format specifiers.