Regular Expressions 101

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Community Patterns

9

Removing an XML Nodes namespace prefix from a XML string wit

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 11 years ago
10

Strip Email ID from Name

PCRE (PHP <7.3)
Use this regex to select all characters up to the "" bracket. It works across multiple lines. You can get an email list with only the IDs. This is the pattern it matches: Alpha Person Step 1 (.*) [$ Step 2 [$.$] (.*) gives you aperson@whatever.org...
Submitted by Jonathan Davidar - 10 years ago
31

Email address (most used)

ECMAScript (JavaScript)
Email address, most used cases
Submitted by Jago - 9 years ago
7

rsyslog test

PCRE (PHP <7.3)
global modifier
Submitted by dtmland - 10 years ago
7

Any positive integer except zero

PCRE (PHP <7.3)
no description available
Submitted by Harsh - 9 years ago
7

Date and time format - ISO 8601

ECMAScript (JavaScript)
Matches ISO 8601 date formats
Submitted by Ettienne - 9 years ago
23

userName

PCRE (PHP <7.3)
1-15 alphanumeric login name
Submitted by gsanchezc - 9 years ago
35

http://

PCRE (PHP <7.3)
no description available
Submitted by Mitus M. - 11 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
8

repeat group match

Python
no description available
Submitted by anonymous - 9 years ago
6

Extract style

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
6

Find consecutive duplicate words

Python
no description available
Submitted by anonymous - 9 years ago
6

Spanish DNI/NIE check fist pass

ECMAScript (JavaScript)
no description available
Submitted by Rafael Casanova Morera - 9 years ago
6

Email

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 9 years ago
11

Address Check Validation

PCRE (PHP <7.3)
Check for true or false street address format
Submitted by Dilip Borad - 11 years ago
5

RegEx to validate oAuth 2.0 redirect_uri

ECMAScript (JavaScript)
A simple RegEx rule which should validate redirect_uri for oAuth2
Submitted by Vlad Miller - 10 years ago
5

youtube url match

ECMAScript (JavaScript)
extract video id, index, play list id from youtube URL
Submitted by anonymous - 9 years ago
5

email (tikhonov)

ECMAScript (JavaScript)
CheckEmail Login start or end simbols [._- ] .login@domain.com - fail -login@domain.com - fail _login@domain.com - fail login.@domain.com - fail...
Submitted by Tikhonov Alexander <123546.90@mail.ru> - 9 years ago (Last modified a year ago)
5

Bible reference extractor

Python
For scraping http://skepticsannotatedbible.com/
Submitted by antaytheist-owner - 9 years ago
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
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Community Library Entry

1

Regular Expression
ECMAScript (JavaScript)

/
^(?:(?:(?:0?[13578]|1[02])(\/|-|\.)31)\1|(?:(?:0?[1,3-9]|1[0-2])(\/?|-|\.)(?:29|30)\2))(?:(?:1[6-9]|[2-9]\d)?\d{2})$|^(?:(?:0?2)(\/?|-|\.)(?:29)\3(?:(?:(?:1[6-9]|[2-9]\d)?(?:0[48]|[2468][048]|[13579][26])|(?:(?:16|[2468][048]|[3579][26])00))))$|^(?:(?:0?[1-9])|(?:1[0-2]))(\/?|-|\.)(?:0?[1-9]|1\d|2[0-8])\4(?:(?:1[6-9]|[2-9]\d)?\d{2})$
/
gm
Open regex in editor

Description

Date Validation with leap year handling, & it takes care of date validation in the format like :mm/dd/yyyy or mmddyyyy or mm-dd-yyyy or m/d/yyyy or m-d-yyyy.

12/01/1986 02/29/2016 02/29/2015 13/31/1986 12/31/1980 1/32/2015 1/31/2015

01012016 01/01/2016 1/1/2016 1/1/16 01/01/16 01-01-2016 1-1-2016 1-1-16 01-01-16

Submitted by Ashish - 9 years ago