Regular Expressions 101

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Community Patterns

3

Email

Python
Python
Submitted by anonymous - 8 years ago
3

Thorough UK Postcode Validator with In/Out code capture groups

Python
A more thorough UK postcode validator tested against all UK postcodes on a regular basis, but excluding the special GIRO postcode case out of personal preference. Additionally has capture groups for the In-code and Out-code sections. Requires case insensitive matching.
Submitted by Chris G - 8 years ago
4

Complete imgur link regex

Python
This regex grabs all kinds of imgur links and groups them in meaningful names aswell. This way you have full flow-control in your python-scripts.
Submitted by Mio - 10 years ago
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

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

Find and extract email domain

Python
Find and extract email domain. Ex: test@example.pt -> extract 'example.pt'
Submitted by Fnxk - 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
6

IOS3166 Country Code Identification REGEX

Python
IOS3166 Country Code Identification REGEX
Submitted by theitgeek@recu.org.uk - 9 years ago
6

Find consecutive duplicate words

Python
no description available
Submitted by anonymous - 9 years ago
7

CSS Import

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

domain - host

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

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
10

Find Reddit Threads

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

-2

Regular Expression
Rust

r"
(([^\n:#]*)(?::([^\n#]+))?)(?:#([0-9A-Za-z]+)(?:\((\d+\.?\d*)\))?)?
"
g
Open regex in editor

Description

The regex to match a single pro forma modification with all its intricacies.

Submitted by Douwe Schulte - a year ago