Regular Expressions 101

Order By

Sponsors
There are currently no sponsors. Become a sponsor today!

Community Patterns

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

Match fluid-width-video-wrapper YouTube video

PCRE (PHP <7.3)
no description available
Submitted by Erica Franz - 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

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

Atomic group

PCRE (PHP <7.3)
Atomic Groups are non-capturing and once a match is made will exit the atomic group and throw away all backtracks. Use Atomic Groups for optimising performance. A non-atomic expression \b(foobar|foot|foo)\b and a test string of foots will: match foo of foobar => fail and backtrack to the 2nd alter...
Submitted by anonymous - 9 years ago
1

hastags shortcuts

PCRE (PHP <7.3)
This regexp is used in the SPIP cms for create tags fastly when you are writting a post.
Submitted by pierre.laszczak@gmail.com - 9 years ago
1

ConnectionStringServerDatabase

Python
Extract the server and database name from SQL Server connection string
Submitted by Davos - 9 years ago
1

Lines file First and Last Node

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

Java

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

pohe no nubmer valdiation

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

CR with no LF or PG at the end

PCRE (PHP <7.3)
Match lines with CR (Carriege Return) with no LF (Line Feed - New Line) or PG (Page Break) next to it.
Submitted by Hans Mauricio Burbano E - 9 years ago
1...111112113114115...572

Community Library Entry

0

Regular Expression
Python

r"
^\s{7}([-A]?\d+)\s+((.|\n)*?)\n^\s{24}([A-Z]{0,2}\d{3}(\.\d+)?(\s(\w+))?)
"
gm
Open regex in editor

Description

Matches entries in a library catalogue.

Submitted by anonymous - a year ago