Regular Expressions 101

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Community Patterns

2

Bitstream with not more than 4 repeating bits

PCRE (PHP <7.3)
0111100 will be matched whereas 0111110 will not. Change \1{4} to max repeating count. For max 9 repeating -> \1{9}
Submitted by anonymous - 9 years ago
2

ukrainian alphabet

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

Date or N/A

ECMAScript (JavaScript)
Accepts Date or not applicable string.
Submitted by Toufique Ahmed - 9 years ago
2

string contains

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

test

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

Email Cleanup

PCRE (PHP <7.3)
Working on email link cleanup.
Submitted by anonymous - 9 years ago
2

extract hostname

PCRE (PHP <7.3)
extracts hostname from url
Submitted by Kristine Poghosyan - 9 years ago
2

problem for homework

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

extension libre office

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

Observatorio do Trabalho

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

Logix Designer tag operand

PCRE (PHP <7.3)
Locates valid Logix Designer tag operands
Submitted by anonymous - 9 years ago
2

FEN Regex

PCRE (PHP <7.3)
This will match an FEN string (https://en.wikipedia.org/wiki/Forsyth%E2%80%93Edwards_Notation). It is not strict in having each rank separated by a '\' character, although it is strict in the order of characters for the Castling section. Anything not following the order of KQkq in the case where cas...
Submitted by NazarioJL - 9 years ago
2

Shortcode

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

UK phone number

PCRE (PHP <7.3)
UK phone number
Submitted by Andrea SonnY - 9 years ago
2

matching regex and boolean patterns in a string

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

Match a specific CSV field.

PCRE (PHP <7.3)
Fields terminated by ';' even if the fields are surrounded by " does not accept newlines. Change the central qualifier to get the column. if you want the Xth field write X-1 and use the 3° mathing group OR write X and use the 2° match.
Submitted by anonymous - 9 years ago
2

kasd; fk.!@#$%^&*()*()%^&*()_

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

mystem

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

thy_reservation_flights

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

thy_reservations_names

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
1...869870871872873...902

Community Library Entry

0

Regular Expression
Python

r"
<a[\S ]*href=\"([a-zA-Z0-9\/\.:]*)\"[\S ]*[\s]*><img[\S ]*src=\"([a-zA-Z0-9\/\.]*)\"[\S ]*[\s]*\/{0,1}><\/a>
"
gms
Open regex in editor

Description

Finds image links, for example, links to other's pages on personal webpages.

Submitted by anonymous - 2 years ago