Regular Expressions 101

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Community Patterns

13

PHP variable name

PCRE (PHP <7.3)
Valid PHP variable name as defined in the manual at http://php.net/manual/en/language.variables.basics.php
Submitted by Erin Millard - 12 years ago
52

Disorted Email Addresses

PCRE (PHP <7.3)
Matches distorted email addresses and converts them back to real ones.
Submitted by dislick - 12 years ago
40

URL regexp

PCRE (PHP <7.3)
A quite neat regular expression for URLs, e-mails..., I found on Matthew O'Riordan's blog.
Submitted by Matthew O'Riordan - 12 years ago
1...900901902

Community Library Entry

0

Regular Expression
Python

r'''
\b[\(|\[]?(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9]) \. (25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9]) \. (25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9]) \. (25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])[\]|\)]?\b
'''
x
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Description

Search and Match an IP address in a string that may have either () or [] as boundaries.

Submitted by anonymous - 5 years ago