Regular Expressions 101

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Community Patterns

4

Equation matching (without equal)

Python
use this to get value of any side of an equation. You can combine this with https://regex101.com/r/fH5kJ1/1
Submitted by Kerosene2000 - 9 years ago
4

CloudFlare

PCRE2 (PHP >=7.3)
Cloud Flare
Submitted by anonymous - 3 years ago
4

Email

PCRE2 (PHP >=7.3)
email format control
Submitted by ahmetbarut - 3 years ago
5

import url image

Python
import url image
Submitted by bartimeys - 9 years ago
5

Form Tag

Python
Form Tag
Submitted by Jay Patel - 9 years ago
5

psswd

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

Bible reference extractor

Python
For scraping http://skepticsannotatedbible.com/
Submitted by antaytheist-owner - 9 years ago
5

Match Only Text

Python
no description available
Submitted by anonymous - 8 years ago
5

Match any url in text or html (http, https)

PCRE2 (PHP >=7.3)
Match any url in text or html (http, https)
Submitted by Jérémy Munsch - 3 years ago
6

Find consecutive duplicate words

Python
no description available
Submitted by anonymous - 9 years ago
6

Find and extract email domain

Python
Find and extract email domain. Ex: test@example.pt -> extract 'example.pt'
Submitted by Fnxk - 9 years ago
7

CSS Import

Python
no description available
Submitted by anonymous - 11 years ago
7

SO: fail2ban regular to find 403 request in nginx

Python
http://stackoverflow.com/q/25778420/2072035
Submitted by anonymous - 10 years ago (Last modified a year ago)
7

IOS3166 Country Code Identification REGEX

Python
IOS3166 Country Code Identification REGEX
Submitted by theitgeek@recu.org.uk - 10 years ago
8

Extract Protocol, URL, URL Path, get parameters and hash from URI

Python
This is simplified from my last submission.
Submitted by Dale O'Brien - 11 years ago
8

repeat group match

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

English date in "dd mmmm yyyy" format

Python
Parse an English date following the "dd mmmm yyyy" format.
Submitted by Tantale - 10 years ago
9

domain - host

Python
no description available
Submitted by anonymous - 9 years ago
10

entity

Python
no description available
Submitted by anonymous - 9 years ago
10

extract subdomain(if available) or domain from URL

Python
This regex should extract the subdomain, if any, or the domain, if no subdomain is used, from an arbitrary URL
Submitted by trevi@twanda.com - 9 years ago
1...261262263264

Community Library Entry

-1

Regular Expression
Python

r"
(\A|\s)#(\w+)
"
g
Open regex in editor

Description

Using the twitter API, take a tweet object and find & link #tags to embed in HTML

Submitted by @triplec1988 - 11 years ago