Regular Expressions 101

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Community Patterns

9

RFC 3987 compliant URL regex

ECMAScript (JavaScript)
This is a JavaScript port of the URL regex from http://stackoverflow.com/a/190405/384062 that includes a bug fix and some optimization. Mathias Bynens's Regenerate was used to convert unicode escapes. Bug fix: Eliminated stray | falsely allowing querystring to contain | ...
Submitted by Hans Meyer - 9 years ago
8

repeat group match

Python
no description available
Submitted by anonymous - 9 years ago
5

ipv6 Validation

PCRE (PHP <7.3)
Handle all condition for ipv6 example: 1) FE80::8329 2) FE80::FFFF:8329 3) FE80::B3FF:FFFF:8329 4) FE80::0202:B3FF:FFFF:8329...
Submitted by Lim Yew Teck, Nicholas - 9 years ago
10

money: either 0 or 2 dp

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 9 years ago
11

IPv4 Validator

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 4 years ago (Last modified a year ago)
5

Youtube ID matcher

ECMAScript (JavaScript)
Credit: https://gist.github.com/FinalAngel/1876898
Submitted by anonymous - 11 years ago
9

Extract url GET parameters

PCRE (PHP <7.3)
Returns key/value pair of a url. Also works with google fonts which has additional information
Submitted by anonymous - 10 years ago
9

UUID

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 10 years ago
10

Find Reddit Threads

Python
Simply searches for the thread-id in any kind of valid reddit-URL.
Submitted by Mio - 10 years ago
6

Split address line into street name and house number

PCRE (PHP <7.3)
This regular expression splits an address line like for example "1117 Franklin Blvd" into the street name and house number. It also supports addresses where street name and house number are the other way around (e.g. "Mustermannstr. 1"). Furthermore, this regular expression also supports address lin...
Submitted by Andre Wisplinghoff - 10 years ago
9

English date in "dd mmmm yyyy" format

Python
Parse an English date following the "dd mmmm yyyy" format.
Submitted by Tantale - 9 years ago
5

MAC address

ECMAScript (JavaScript)
a mac address separated by dashes or colons.
Submitted by anonymous - 9 years ago
11

youtube url match

ECMAScript (JavaScript)
extract video id, index, play list id from youtube url
Submitted by anonymous - 9 years ago
9

If-Then-Else Conditionals

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
6

Email with + symbol

ECMAScript (JavaScript)
email that accepts the plus (+) symbol
Submitted by luckcheese - 9 years ago
10

entity

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

Letters, numbers and blank space

PCRE (PHP <7.3)
The following regular expression matches only letter a-z A-Z numbers 0-9 and a blank space for a given string.
Submitted by Jordan Raychev - 9 years ago
7

Split quotes and single words

ECMAScript (JavaScript)
Find " and ' quoted strings and "orphaned"/single words in a string
Submitted by LoveIsGrief - 11 years ago
5

Accept url without www

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 11 years ago
0

number with or without thousands separator(.) and decimal part(,)

PCRE (PHP <7.3)
number with or without thousands separator(.) and decimal part(,) ES: 100000; 1.646; 13323,33; 3.444.434,44
Submitted by Basten - 10 years ago
1...45678...900

Community Library Entry

2

Regular Expression
PCRE (PHP <7.3)

/
\bvari?((?<=i)a)?((?<=a)b)?((?<=b)l)?((?<=l)e)?\b
/
g
Open regex in editor

Description

This reges searches all abbreviations of command "var|iable" in multiline script

Submitted by ibes - 10 years ago