Regular Expressions 101

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Community Patterns

1

Regex for e-mail verification

PCRE (PHP <7.3)
This regex checks if an email address is valid. It doesn't allow domain parts in the format [255.255.255.255]. It requires at least a domain and tld. (me@local is not allowed) It does allow quoted strings in the local part. It doesn't allow comments. Neither in the local nor in the domain part. It...
Submitted by anonymous - 9 years ago
1

test

ECMAScript (JavaScript)
teste
Submitted by test - 9 years ago
1

php `define` match

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

2 or more space between text

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

Aggregates

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

C2I_BIO_2A_D1.2.02_21405520.txt

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

1

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

cuke-orderFills

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

Regex for Youtube

PCRE (PHP <7.3)
Regex to catch youtube traffic in a Mikrotik router
Submitted by HMBE - 9 years ago
1

kl

ECMAScript (JavaScript)
jhkjnbkn
Submitted by kjnlkj - 9 years ago
1

Match fluid-width-video-wrapper YouTube video

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

Match URL

ECMAScript (JavaScript)
no description available
Submitted by http://piecedigital.github.io - 9 years ago
1

Season and episode extractor

Python
extract form the name of a tvseries file the season ande episode
Submitted by 0b1w4n - 9 years ago
1

\A(?:[A-Za-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[A-Za-z0-9!#$%&'*+/=?^_`{|}~-

ECMAScript (JavaScript)
fasfasfsafas
Submitted by anonymous - 9 years ago
1

dfrgeagtcer

PCRE (PHP <7.3)
regcergtecrhcethgeargerer
Submitted by regerhsrthrstchrtxhdrsxthjsrthrthrth - 9 years ago
1

Polynomials regex

PCRE (PHP <7.3)
Decompose polynomials of type +/- NUMBERx ^ NUMBER
Submitted by anonymous - 9 years ago
1

Positive lookahead

PCRE (PHP <7.3)
finds the first bar (Find "bar" which has "bar" after it)
Submitted by anonymous - 9 years ago
1

positive lookahead and positive lookbehind

PCRE (PHP <7.3)
Look ahead Positive(?=) Find expression A where expression B follows A(?=B) ...
Submitted by anonymous - 9 years ago
1

POSITIVE LOOK AHEAD AND POSITIVE LOOK BEHIND

PCRE (PHP <7.3)
Look ahead Positive(?=) Find expression A where expression B follows A(?=B) ...
Submitted by anonymous - 9 years ago
1

Positive Look ahead and Look Behind

PCRE (PHP <7.3)
Look ahead Positive(?=) Find expression A where expression B follows A(?=B) ...
Submitted by Rajesh - 9 years ago
1...150151152153154...897

Community Library Entry

1

Regular Expression
PCRE (PHP <7.3)

/
^(?=.*property="og:image").*content="(?P<content>[^"]+)".*$
/
gm
Open regex in editor

Description

regcergtecrhcethgeargerer

Submitted by regerhsrthrstchrtxhdrsxthjsrthrthrth - 9 years ago