Regular expression help
- by user268375
I need a regular expression for which:
the string is alphanumeric and have exactly 6 characters in the first half followed by hyphen(optional) followed by optional 4 characters:(cannot have more than 4 characters in the second half)
so any of the following is valid
11111A
111111-1
111111-yy
yyyyy-989
yyyyyy-9090
I have ^[a-zA-Z0-9]{5}(-[a-zA-Z0-9]{1,3})?$ as the regex expression
what if i want to add another condition stating that the first half cannot have all zeros and also the whole expression cannot have zeros so 00000 or 00000-000 is invalid
