"." Period filter for wire number labels

Hello, once again I have a difficult (for me) issue to figure out.

Is there a way to have a column with random width data with some fields having decimal point values, and have ability sort/filter so that data with decimal point doesn't show up?

Background:
I have a list of wire numbers in this format: xxx-xx-xx.x , where Room-Bundle-Wire.Leg
Most of labels are 8 or 9 positions long where we have IDs such as:
002-01-2
002-02-01

But I also have trunk or distribution #s that look like this:
Patch # Patch Name
006-01 Coax 8 Position block in SMC1
006-02 48 Port Network Patch Panel in SMC1
008-01 Home Theater 24 Port Cat5e Patch Panel

The only constant is that the decimal point separates the unique wire from a leg number.
When determining # of patch panels, or drops, I don't need to see the leg.

So I may have a wire that goes from 3nd bedroom room (203), 2nd drop (02), and is 5 wire in the bundle (05).
That would be 203-02-5 or 203-02-05

Anything that plugs into this wire (or jack) would get a .x extension.
So if this was a network wires, PC to wall jack might be 203-02-05.1
In equipment room, patch panel to network switch might be 203-02-05.2


When printing wire lists or drop lists, I would like to hide the leg numbers (not show any rows with *.x)

Any ideas?

Thanks,
Mario