Is there a way that i can detect a range of chars with on text?

For instains.
When someone only uses 012 in there message and nothing else. like '120001220200102002', that i can detect it and akt on that?
Something like [0..2] to detect it..
And mabye also [0..2-a..b]????

Thx in advance.


GreetZ BlackDex
To boldly go where no one has gone before.