Regular Expressions 101

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Community Patterns

238

Matching email addresses per RFC5322

PCRE (PHP <7.3)
The BNF rules from RFC 5322 transformed to PCRE by Nikita Popov and described in the post http://nikic.github.io/2012/06/15/The-true-power-of-regular-expressions.html.
Submitted by Michael Musson - 11 years ago
483

regex101.com permalink id grabber

PCRE (PHP <7.3)
Grabs the ID for the regex101.com permalink code. If a revision number is provided, grab that as well.
Submitted by chris mccoy - 11 years ago (Last modified 8 months ago)
1...900901902

Community Library Entry

0

Regular Expression
ECMAScript (JavaScript)

/
(?:(?<dateShort>\d\d\/\d\d\/\d{4})|(?<dateLong>\w* \d\d, \d{4})|(?<dateISO>\d{4}-\d\d-\d\d)).*label:\s(?<label>\w*)\)
/
gmi
Open regex in editor

Description

Classify <dateShort> \d\d / \d\d / \d{4} <dateLong> \w* \d\d, \d{4} <dateISO> \d{4}-\d\d-\d\d

and label them

Submitted by anonymous - 2 years ago