Regular Expressions 101

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Community Patterns

6

search word with an accent

ECMAScript (JavaScript)
search any word with an accent
Submitted by Thegner Pierre - 9 years ago
6

Find consecutive duplicate words

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

Email with + symbol

ECMAScript (JavaScript)
email that accepts the plus (+) symbol
Submitted by luckcheese - 9 years ago
6

Spanish DNI/NIE check fist pass

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

Simple Number

ECMAScript (JavaScript)
Verifies Number is a negative/positive number. Number may be a decimal, but if it is, it requires at least one number before and after the decimal place. Decimal numbers may also be negative or positive. Only 1 decimal place is allowed.
Submitted by David P Smith - 9 years ago
6

HTML tag stripper

PCRE (PHP <7.3)
This regex will identify all html start and end tags.
Submitted by anonymous - 9 years ago
6

Validate Birth Date (d/m/Y)

PCRE (PHP <7.3)
From 1970 to 2015 Replace: (\d{4})$ for (19[7-9]\d|200-1)$
Submitted by Valdeir Santana - 9 years ago
6

Find and extract email domain

Python
Find and extract email domain. Ex: test@example.pt -> extract 'example.pt'
Submitted by Fnxk - 9 years ago
6

Email

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 9 years ago
7

Split quotes and single words

ECMAScript (JavaScript)
Find " and ' quoted strings and "orphaned"/single words in a string
Submitted by LoveIsGrief - 11 years ago
7

CSS Import

Python
no description available
Submitted by anonymous - 11 years ago
7

PAN CARD validation

PCRE (PHP <7.3)
checks for valid PAN card for Indian users.
Submitted by karan thakkar - 11 years ago
7

split URL into location-resource-params (JavaScript)

ECMAScript (JavaScript)
Extract resource location, name and query parameters from a URL (JavaScript version)
Submitted by cebence - 11 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

if, else if, else condtion match

ECMAScript (JavaScript)
matches full if condition statment eg: if(condition){ ... } else if(condition){ ... }else{...
Submitted by Ivan Jakesevic - 10 years 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

simple common lisp tokenizer

ECMAScript (JavaScript)
main symbols and comments are supported
Submitted by d4rw1n1s7@gmail.com - 10 years ago
7

rsyslog test

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

Match text (not within html tag)

ECMAScript (JavaScript)
no description available
Submitted by Moistly - 10 years ago
1...895896897898899...902

Community Library Entry

0

Regular Expression
PCRE2 (PHP >=7.3)

/
(?<=[ ;|,:]|^)([A-Z\.\-a-z1-9]+@[A-Za-z1-9]+?\.[A-Za-z1-9\.]+?)(?=[ ;|,:]|$)
/
gm
Open regex in editor

Description

Select emails from a string

Submitted by anonymous - 2 years ago