Regular Expressions 101

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Community Patterns

7

CSS Import

Python
no description available
Submitted by anonymous - 10 years ago
7

split URL into location-resource-params (JavaScript)

ECMAScript (JavaScript)
Extract resource location, name and query parameters from a URL (JavaScript version)
Submitted by cebence - 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)
7

if, else if, else condtion match

ECMAScript (JavaScript)
matches full if condition statment eg: if(condition){ ... } else if(condition){ ... }else{...
Submitted by Ivan Jakesevic - 10 years ago
7

TimezoneOffset

ECMAScript (JavaScript)
used to parse timezone in the format -08:00 or +05:30
Submitted by Neha - 10 years ago
7

simple common lisp tokenizer

ECMAScript (JavaScript)
main symbols and comments are supported
Submitted by d4rw1n1s7@gmail.com - 10 years ago
7

Match text (not within html tag)

ECMAScript (JavaScript)
no description available
Submitted by Moistly - 9 years ago
7

simple email

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 9 years ago
7

Date validation

ECMAScript (JavaScript)
Besides leap year handling, this takes care of date validation in the yy-mm-dd format.
Submitted by anonymous - 9 years ago
7

Extract currency with currency symbol if present

ECMAScript (JavaScript)
Extracts values of the form £nnn,nnn.nn or $nnn.nnn from text
Submitted by Simon Gardner - 9 years ago
7

IP Address (with 0s)

ECMAScript (JavaScript)
Matches all valid IP addresses from 0.0.0.0 to 255.255.255.255
Submitted by Ryan Plummer - 9 years ago
7

Date and time format - ISO 8601

ECMAScript (JavaScript)
Matches ISO 8601 date formats
Submitted by Ettienne - 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
8

repeat group match

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

UUID

ECMAScript (JavaScript)
no description available
Submitted by anonymous - 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
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
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
1...293294295296297

Community Library Entry

9

Regular Expression
Python

r"
(?=^.{4,253}$)(^((?!-)[a-zA-Z0-9-]{1,63}(?<!-)\.)+[a-zA-Z]{2,63}$)
"
Open regex in editor

Description

no description available

Submitted by anonymous - 9 years ago