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

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

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
2

sun_reservation_flights

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

sun-reservation-2-flights

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
1...870871872873874...902

Community Library Entry

2

Regular Expression
PCRE (PHP <7.3)

@
^(?<tag>(?:[a-zA-Z]\w*|_\w+))(?<memspec>(?:(?:(?:\s*\.(?:[a-zA-Z]\w*|_\w+)|(?:\s*\[(?:[^,\]]+)(?:,(?:[^,\]]+))*\]))*)(?:(?:\s*\.\d+|\.\s*(?:\s*\[(?:[^,\]]+)\]))?)))?(?<metadataspec>(?:\s*\.\@(?<metadataid>(?:[a-zA-Z]\w*|_\w+))(?<metadatamemspec>(?:(?:(?:\s*\.(?:[a-zA-Z]\w*|_\w+)|(?:\s*\[(?:[^,\]]+)(?:,(?:[^,\]]+))*\]))*)(?:(?:\s*\.\d+|\.\s*(?:\s*\[(?:[^,\]]+)\]))?)))?))?$
@
gm
Open regex in editor

Description

Locates valid Logix Designer tag operands

Submitted by anonymous - 9 years ago