Regular Expressions 101

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Community Patterns

1

Get src and srcset image attributes, and other attributes

PCRE (PHP <7.3)
Not depending on the src or srcset order, but some matches can be empty, depending on the img syntax.
Submitted by Geoffrey Crofte & Sébastien Decamme - 9 years ago
1

get user authentication

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

SEO RegExp

Python
SEO RegExp
Submitted by Jay Patel - 9 years ago
0

Last SEO RegExp

Python
Last SEO RegExp
Submitted by Jay Patel - 9 years ago
0

text validation

ECMAScript (JavaScript)
allows white spaces, -, Umlaut and ß
Submitted by anonymous - 9 years ago
1

Czech phone number

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
1

наличие автомобиля FALSE REG

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

наличие автомобиля TRUE REG

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

Впереди стоящий символ и последний

Python
Опережающая и ретроспективная проверки
Submitted by Суховерхоа Денис - 9 years ago
1

detect bot

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

yahya_asadi

ECMAScript (JavaScript)
trying to learn regex
Submitted by yahya_asadi - 9 years ago
0

Find all attributes and values of HTML tag

PCRE (PHP <7.3)
This regex will find all attributes, values, and the equal operator, as well as the white space between attributes. You can use this to extract all attributes to remove all inline styles.
Submitted by Demetri Ojeda - 9 years ago
1

Norwegian Address Pattern

PCRE (PHP <7.3)
Street name XXX, XXXX City XXX = House number XXXX = Zip code Example:...
Submitted by Yuppielabel - 9 years ago
1

? - One or Zero times Quantifier Example

ECMAScript (JavaScript)
Here, it matches ft or ft. & foot & feet
Submitted by Dinesh Dontha - 9 years ago
1

LUA double-quoted string

PCRE (PHP <7.3)
no description available
Submitted by Daniele V - 9 years ago
1

domain/url

Python
Finda a domain or a url, with ot without a port in a string. Includes http and https
Submitted by Shmuel Blitz - 9 years ago
1

parse input name

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

Apache Log Format Parser

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

input name parse variant 2

PCRE (PHP <7.3)
no description available
Submitted by Mikhail - 9 years ago
1

Alphanumeric splitter

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
1...186187188189190...902

Community Library Entry

0

Regular Expression
PCRE2 (PHP >=7.3)

/
^-?[0-9][0-9,\.]+$
/
gm
Open regex in editor

Description

test for numeric values with digit and thousand separators (, and ,) and also negative sign (-)

Submitted by anonymous - 3 years ago