Regular Expressions 101

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Community Patterns

5

Form Tag

Python
Form Tag
Submitted by Jay Patel - 9 years ago
5

psswd

Python
no description available
Submitted by anonymous - 9 years ago
5

Match Only Text

Python
no description available
Submitted by anonymous - 8 years ago
5

get specific value from html tag

PCRE (PHP <7.3)
no description available
Submitted by A.ROA - 8 years ago
5

among us references

ECMAScript (JavaScript)
it detects among us references among us aming us mongus amogus sus...
Submitted by h - 4 years ago (Last modified 4 years ago)
5

Match any url in text or html (http, https)

PCRE2 (PHP >=7.3)
Match any url in text or html (http, https)
Submitted by Jérémy Munsch - 3 years ago
7

SO: fail2ban regular to find 403 request in nginx

Python
http://stackoverflow.com/q/25778420/2072035
Submitted by anonymous - 10 years ago (Last modified a year ago)
7

[A-Za-z\x{0600}-\x{06FF}\x{1000}-\x{1021}_-][-\w]*

PCRE (PHP <7.3)
A-Za-z\x{0600}-\x{06FF}\x{1000}-\x{1021}_-*
Submitted by [A-Za-z\x{0600}-\x{06FF}\x{1000}-\x{1021}_-][-\w]* - 10 years ago
7

TimezoneOffset

ECMAScript (JavaScript)
used to parse timezone in the format -08:00 or +05:30
Submitted by Neha - 10 years ago
7

validate US (5 & 9 digit) ZipCodes and CA PostalCodes

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 10 years ago
7

IOS3166 Country Code Identification REGEX

Python
IOS3166 Country Code Identification REGEX
Submitted by theitgeek@recu.org.uk - 10 years ago
7

simple email

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 10 years ago
7

Extract currency with currency symbol if present

ECMAScript (JavaScript)
Extracts values of the form £nnn,nnn.nn or $nnn.nnn from text
Submitted by Simon Gardner - 9 years ago
7

Remove Widows (PHP)

PCRE (PHP <7.3)
Adds a non-breaking space between the last two words of sentences
Submitted by herkulano - 9 years ago
72

Regex for telephone numbers all over the world

Recommended
ECMAScript (JavaScript)
Detects most of the phone numbers all over the world
Submitted by Aditya Joshi - 11 years ago (Last modified a year ago)
4

semver

Recommended
PCRE (PHP <7.3)
Semantic Versioning regex pattern according to Tom Preston-Werner http://semver.org/ https://github.com/mojombo/semver/blob/master/semver.md First version of this regex follows semver 2.0.0....
Submitted by @gvlx <Gerardo Lisboa> - 10 years ago
16

Hashtag

ECMAScript (JavaScript)
The secret of the Twitterverse.
Submitted by Joogl - 10 years ago
18

Date Regex(DD/MM/yyyy)

PCRE (PHP <7.3)
no description available
Submitted by alcaamado - 9 years ago
35

IP Address validator

ECMAScript (JavaScript)
Validates IPv4 IP Address
Submitted by krzysp - 10 years ago
20

Between tags content

PCRE (PHP <7.3)
no description available
Submitted by Agustín Bouillet - 9 years ago
12345...902

Community Library Entry

1

Regular Expression
PCRE2 (PHP >=7.3)

/
(.)\1{2}
/
g
Open regex in editor

Description

Oh no! It seems my friends spilled beer all over my keyboard last night and my keys are super sticky now. Some of the time whennn I press a key, I get two duplicates.

Can you ppplease help me fix thhhis?

Substitute with $1

Submitted by anonymous - 3 months ago