the-bastion/bin/plugin/open/nc.json

{
    "interactive": [
        "nc"                                     , {"ac" : ["--host"]},
        "nc --host"                              , {"pr" : ["<HOST>"]},
        "nc --host \\S+"                          , {"ac" : ["--port"]},
        "nc --host \\S+ --port \\d+"               , {"ac" : ["<enter>", "--timeout"]},
        "nc --host \\S+ --port \\d+ --timeout"     , {"pr" : ["<TIMEOUT>"]},
        "nc --host \\S+ --port \\d+ --timeout \\d+" , {"pr" : ["<enter>"]}
    ]
}