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1.4 KiB

options

Instructions

Write a program that takes an undefined number of arguments which could be considered as options and writes on the standard output a representation of those options as groups of bytes followed by a newline('\n').

  • An option is an argument that begins with a - and that can have multiple characters which could be : -abcdefghijklmnopqrstuvwxyz

  • All options are stocked in a single int and each options represents a bit of that int, and should be stocked like this :

    	- 00000000 00000000 00000000 00000000
    	- ******zy xwvutsrq ponmlkji hgfedcba
    
  • Launching the program without arguments or with the -h flag activated must print all the valid options on the standard output, as shown on one of the following examples.

  • A wrong option must print Invalid Option followed by a newline.

Usage

student@ubuntu:~/piscine-go/test$ go build
student@ubuntu:~/piscine-go/test$ ./test | cat -e
options: abcdefghijklmnopqrstuvwxyz$
student@ubuntu:~/piscine-go/test$ ./test -abc -ijk | cat -e
00000000 00000000 00000111 00000111$
student@ubuntu:~/piscine-go/test$ ./test -z | cat -e
00000010 00000000 00000000 00000000$
student@ubuntu:~/piscine-go/test$ ./test -abc -hijk | cat -e
options: abcdefghijklmnopqrstuvwxyz$
student@ubuntu:~/piscine-go/test$ ./test -% | cat -e
Invalid Option$
student@ubuntu:~/piscine-go/test$