parse-ssid

[pjao]

This last PR could created a issue.

If the repeater as already an ssid, and the user id matches the rule, it will be added another ssid

Of course the function make_callsign_valid fix it, but I think that it should be validated before.

Example:

getting info for repeater id 643000199...
parse ssid from repeater id
sending location to aprs for C91PM-6-99
aprs text: openSPOT 435.0000/435.0000 CC1
aprs data: C91PM-6>APBM1S,TCPIP*:@112210z2558.74S/03237.20EQPHG0500openSPOT 435.0000/435.0000 CC1

As @cyanide-burnout as told before, we must keep with the rules.

Callsigns for AX.25 must:
Consist of only upper case letters and numbers
Have a base callsign before the SSID at least three characters long
Have a numeric SSID which falls in 0 - 15
Have a base callsign before the SSID no longer than six characters
In this context alphanumeric is defined as any ASCII values in the range:
decimal [65 - 90] - 'A'-'Z'
decimal [48 - 57] - '0'-'9'

[nonoo]

Can you please submit a pull request to fix the issue?