help with train station string splitting

I have a string for a small project that's a number and when transmitted the other computer receives it as 'number.0' like 1.0, 2.0,3.0,4.0. It should receive 4 numbers as just the numbers for a 16-track train station.

^that's a rough representation of it, with blue being outgoing lines and green being bridges. the yellow are computers, the redstone looking one is the master receiver, which I always use to debug rednet and receives all transmissions. Anyways, I currently need help on finding out how to separate a string at the ".". I can do it with gmatch at any spaces, but need to know how to split a string.

EDIT: I guess what I'm really asking for is if anybody knows the %a+ and %w+ things in list form, since nowhere else that i've seen has it

You really should have posted the code, but I suspect that if you tostring the number before writing it to the screen, it will display as you desire.

I thought about posting the code, but it's pretty much useless since all I need is one line of help and nothing is directly wrong with the code. I'll try the tostring when I have the time but my dug just cut her foot so that happened. probably within an hour i'll test it

It works on the receiving end, but as one might know it'd be better if the transmitter could just do it