Regular expression pattern:
[[1-9]-]?[a-zA-Z1-9]
Shouldn't the following strings match?:
2-
5-
2-S
5-t
S
t
What am I not understanding here?
Also Tried:
[[1-9]-]{0,1}[a-zA-Z1-9]
[[1-9]-|][a-zA-Z1-9]
[[[1-9]-]|][a-zA-Z1-9]
Trying to come up with a pattern for:
1st character = Number 1-9
2nd character = always "-"
3rd character = Alphanumeric (all cases, 1-9)
4rd character = Alphanumeric (all cases, 0-9) Repeat X number of times
OR
1rd character = Alphanumeric (all cases, 1-9)
2rd character = Alphanumeric (all cases, 0-9) Repeat X number of times
(i realize i haven't implemented the repeat portion in the code given here yet)
This regex should work for you (assuming X=8):
^([1-9]-)?[a-zA-Z1-9][a-zA-Z0-9]{8}$
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