Regular Expressions 101

Order By

Sponsors
There are currently no sponsors. Become a sponsor today!

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)

/
(\w{2}).*?\b
/
gm
Open regex in editor

Description

It grabs 2 first characters from a word. So:

  • please will be pl
  • sure and sun will be su
  • white and what will be wh

Go to substitute mode for the result to appear :)

Submitted by anonymous - 2 years ago