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Expressions by User

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Title Test Details Pattern Title
Expression
^(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])$
Description
This matches an IP address, putting each number in its own group that can be retrieved by number. If you do not care about capturing the numbers, then you can make this shorter by putting everything after ^ until immediately after the first \. in a group ( ) with a {3} after it. Then put the number matching regex in once more. It only permits numbers in the range 0-255.
Matches
0.0.0.0 | 255.255.255.02 | 192.168.0.136
Non-Matches
256.1.3.4 | 023.44.33.22 | 10.57.98.23.
Author Rating: The rating for this expression. Andrew Polshaw
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