Calculate Membership in group or ranges

[Dschingis]

A function for calculating the membership in a group or range, which returns True or False. Example:

$a = 5
Member($a,1;3;4;7;9;b-m)
Member($a,1-4;6;8-22)
Member($a,A-H;z;n-x;5)
Member($a,EvenNumbers(13,79))

[TicketCleanup]

Automatic ticket cleanup.

[Valik]

This should be possible via a COM object, 3rd-party tool or DllCall(). In other words it should be possible via a UDF of some sort. Closing as rejected.