Regular Expressions 101

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Community Patterns

10

Find Reddit Threads

Python
Simply searches for the thread-id in any kind of valid reddit-URL.
Submitted by Mio - 9 years ago
10

entity

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

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 - 8 years ago
81

Distinguish torrent files (series vs movies)

Python
A neat regex for finding out whether a given torrent name is a series or a movie. Returns the full name of the series with the separator needed to make it pretty (ie, replace it with space or what you want). Also returns the season number or the year for the movie/series, depending on what was prev...
Submitted by Firas Dib - 10 years ago (Last modified 9 months ago)
5

Form Tag

Python
Form Tag
Submitted by Jay Patel - 8 years ago
5

psswd

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

Find and extract email domain

Python
Find and extract email domain. Ex: test@example.pt -> extract 'example.pt'
Submitted by Fnxk - 8 years ago
5

Match Only Text

Python
no description available
Submitted by anonymous - 8 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 9 months 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
6

IOS3166 Country Code Identification REGEX

Python
IOS3166 Country Code Identification REGEX
Submitted by theitgeek@recu.org.uk - 9 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 - 8 years ago
8

repeat group match

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

Find consecutive duplicate words

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

Bible reference extractor

Python
For scraping http://skepticsannotatedbible.com/
Submitted by antaytheist-owner - 8 years ago
9

domain - host

Python
no description available
Submitted by anonymous - 9 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 - 10 years ago
3

how to match both lines?

Python
f_name may contain spaces, numbers, characters,... so I would go for a but then I couldn't use [...]? anymore to match the second line?
Submitted by anonymous - 10 years ago
3

Find URLs in markdown where the lines have been wrapped

Python
no description available
Submitted by anonymous - 10 years ago
123...104

TCP/UDP Port

0

Regular Expression
PCRE (PHP <7.3)

/
^([0-9]|[1-9][0-9]|[1-9][0-9]{2}|[1-9][0-9]{3}|[1-5][0-9]{4}|6[0-4][0-9]{3}|65[0-4][0-9]{2}|655[0-2][0-9]|6553[0-5])$
/
gm
Open regex in editor

Description

Matches a TCP or UDP port. This will only match a string of digits between 0-65535.

It does not support zero-padded ports.

Submitted by anonymous - 5 years ago