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

1

Regular Expression
PCRE2 (PHP >=7.3)

/
^(?!(-|_))(?!.*(--|__))[A-Za-z0-9-_]+(?<!(-|_))$
/
gm
Open regex in editor

Description

regular expression for illumina sequencer sample ids. sample Ids are alpha numeric with no more than two dashes or underscores and no underscores or dashes in the beginning or end of the sample id.

Submitted by anonymous - 3 years ago