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35 lines
1.3 KiB
35 lines
1.3 KiB
5 years ago
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# options
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## Instructions
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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.
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- An option is an argument that begins by a `-` and have multiple characters which could be :
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- abcdefghijklmnopqrstuvwxyz
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- All options are stocked in a single int and each options represents a bit of that int, and should be stocked like this :
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- 00000000 00000000 00000000 00000000
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- ******zy xwvutsrq ponmlkji hgfedcba
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- 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.
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- A wrong option must print "Invalid Option" followed by a newline.
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## Expected output
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```console
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student@ubuntu:~/piscine/test$ go build
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student@ubuntu:~/piscine/test$ ./test | cat -e
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options: abcdefghijklmnopqrstuvwxyz$
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student@ubuntu:~/piscine/test$ ./test -abc -ijk | cat -e
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00000000 00000000 00000111 00000111$
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student@ubuntu:~/piscine/test$ ./test -z | cat -e
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00000010 00000000 00000000 00000000$
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student@ubuntu:~/piscine/test$ ./test -abc -hijk | cat -e
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options: abcdefghijklmnopqrstuvwxyz$
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student@ubuntu:~/piscine/test$ ./test -% | cat -e
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Invalid Option$
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student@ubuntu:~/piscine/test$
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```
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