I need to find a regex that allows me to identify the following sequence. Two numbers space 8 numbers space one number. Between the numbers can appear multiple combinations of characters.
\d{2}.?\d{8}.?\d{1}
Should match:
11 11111111 1
11-11111111-1
11.11111111.1
11|11111111|1
11.11111111 1
11 11111111 1
Should not match:
11 11111111 11
1 11111111 11
Use
(?<!\d)\d{2}\D*\d{8}\D*\d(?!\d)
See proof.
EXPLANATION
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(?<! look behind to see if there is not:
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\d digits (0-9)
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) end of look-behind
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\d{2} digits (0-9) (2 times)
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\D* non-digits (all but 0-9) (0 or more times
(matching the most amount possible))
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\d{8} digits (0-9) (8 times)
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\D* non-digits (all but 0-9) (0 or more times
(matching the most amount possible))
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\d digits (0-9)
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(?! look ahead to see if there is not:
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\d digits (0-9)
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) end of look-ahead