Regular Expressions 101

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Community Patterns

3

MySQL Full-Text BOOLEAN mode

PCRE (PHP <7.3)
Checks if an input string is compatible with the BOOLEAN mode of MySQL full text search system
Submitted by greezybacon - 9 years ago
3

Get bad iframe (with white-list)

PCRE (PHP <7.3)
In (?!www.youtube.com\/|youtube.com\/|player.vimeo.com\/) u can add good sites for iframes: www.youtube.com/ player.vimeo.com/
Submitted by Resager - 9 years ago
1

filter range

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 9 years ago
2

Email Domain Regex

PCRE (PHP <7.3)
A pattern to match the email domain suffix
Submitted by doug - 9 years ago
-2

search all special characters

ECMAScript (JavaScript)
no description available
Submitted by rlynjb - 9 years ago
3

coffeescript operator

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
2

find numbers with 2 commas

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
0

Isolates Formatted money String inside HTML tags

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
2

IP with Subnet

PCRE (PHP <7.3)
IP address with Subnet
Submitted by Matt Masse - 9 years ago
1

apache log parser

Python
no description available
Submitted by Claudio Borges - 9 years ago
2

Date between 1950 and 2050

ECMAScript (JavaScript)
Date in format MM-dd-yyyy
Submitted by Daniel Quijada - 9 years ago
1

Empty string test

PCRE (PHP <7.3)
Regular for testing empty strings for validation purpose
Submitted by anonymous - 9 years ago
1

Camel case string splitter

PCRE (PHP <7.3)
Splits CamelCase single string into separate strings. Can be used for transforming CamelCase to snake_case. Also works with numbers and capital letter shortcuts (e.g SomeWTFVariable1).
Submitted by Nicolas - 9 years ago
1

json comment - first attempt

Python
no description available
Submitted by Mark - 9 years ago
3

Extract Java Exception Message Field

PCRE (PHP <7.3)
Exception Message: java.lang.NullPointerException: Sample Java Logback Exception at Sample.errorLevel3(Sample.java:35) at Sample.errorLevel2(Sample.java:31) at Sample.errorLevel1(Sample.java:27)...
Submitted by Amit - 9 years ago
2

SED

Python
no description available
Submitted by anonymous - 9 years ago
1

java

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 9 years ago
1

Address Match

Python
no description available
Submitted by Awk - 9 years ago
2

notepad++

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
2

replace any character with more than two occurrence

ECMAScript (JavaScript)
no description available
Submitted by papky - 9 years ago
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Community Library Entry

1

Regular Expression
PCRE2 (PHP >=7.3)

/
(00|1|(01|10)((00)*|1*)(0|01*))
/
mg
Open regex in editor

Description

L1 = {w ∈ Σ ∗ = {0, 1} ∗ | |w|0 = 2k, k ∈ N}

Submitted by Alan Dantas - a year ago