echo 'johndoe@gmail.com' | rjc email-address

[
    {
        "username":          String,
        "domain":            String,
        "local":             String,
        "local_plus_suffix": Option<String>
    }
]

$ echo 'joe.user+spam@gmail.com' | rjc -o=pretty email-address
[
    {
        "username": "'joe.user",
        "domain": "gmail.com' ",
        "local": "'joe.user+spam",
        "local_plus_suffix": "spam"
    }
]