Regular Expressions 101

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Community Patterns

2

Extract Rapidgator Links from a HTML web page (Works for rg.to and rapidgator.net)

PCRE2 (PHP >=7.3)
Click "open regex in editor" to open regex. Open a webpage containing Rapidgator Links - Either rg.to or rapidgator.net Right-click anywhere on the page and select "view page source" Copy the HTML markup containing the Rapidgator links to regex101.com Paste the HTML markup and set mode to match Loca...
Submitted by SmartCoder - 2 years ago
2

Detect RGB/RGBA colors in CSS

PCRE2 (PHP >=7.3)
JS function to convert RGB(A) to HEX color for single values: /** @param {string} color the RGB(A) color @return {string} the HEX color */ function rgba2hex(color)...
Submitted by WinterSilence - 2 years ago
2

US Social Security Number

PCRE2 (PHP >=7.3)
Finds a number that is 9 digits long. Can have spaces or hyphens in between the numbers and will still be found
Submitted by anonymous - 2 years ago
2

VKontakte wall post link regex | ВКонакте проверка ссылки на запись регулярное выражение

ECMAScript (JavaScript)
пипец капец боже мама я устал спаси госпади мою грушную дешу
Submitted by anonymous - 2 years ago (Last modified 2 years ago)
2

Find external resources in styles

ECMAScript (JavaScript)
Finds all external resources declared as url() in styles. Handles different quote types if any, even escaped ones: url(...) url('...') url("...") url(\'...\') url(\"...\")
Submitted by anonymous - 2 years ago
2

Dice-Throwing notation

PCRE2 (PHP >=7.3)
You can express the required dice-throwing as usual: 1d10, 2d6, 3d8... The first part (dice number) is mandatory. So, notations like "D10" are not computed, and they must be written as 1d10 The dice number may be expressed as [number]o[number]. For example: 1o3d10. That will mark to implement a Gaus...
Submitted by Hermes - 2 years ago (Last modified 2 years ago)
2

IPv6 CIDR Validator

ECMAScript (JavaScript)
This is a regex to validate the format of an IPv6-based CIDR range, where the IPv6 portion can be standard, mixed, and/or compressed notation. Supported by: .NET, Java, JavaScript, PCRE, Perl, Python, Ruby Adapted from IPv6 regex published in Regular Expressions Cookbook
Submitted by anonymous - 2 years ago
2

ULID

ECMAScript (JavaScript)
Match a ULID.
Submitted by Matthew Gibbons (@accuser) - 2 years ago
2

HTML Minifier

PCRE2 (PHP >=7.3)
https://stackoverflow.com/questions/5312349/minifying-final-html-output-using-regular-expressions-with-codeigniter Thanks to @Alan Moore
Submitted by anonymous - 2 years ago
2

Zoom links, only with passwords

.NET 7.0 (C#)
Group 1 will have meeting id, group 2 will have password
Submitted by anonymous - 2 years ago
2

Parse conventional commits message

PCRE2 (PHP >=7.3)
https://conventionalcommits.org Parses commits like type(scope)!: subject
Submitted by Alex Kinnee - 2 years ago
2

Email with gmail+ implementation

PCRE2 (PHP >=7.3)
Regex of email with ability to add gmail's +example system example: root email = user@gmail.com gmail+ = user+extra@gmail.com
Submitted by brad - 2 years ago
2

Good enough IPv6

PCRE (PHP <7.3)
A good enough approximation to IPv6 based on the examples at https://www.ibm.com/docs/en/ts3500-tape-library?topic=functionality-ipv4-ipv6-address-formats
Submitted by mig8447 - 2 years ago
2

Replace sub-strings in string

.NET 7.0 (C#)
Replace sub-strings in string
Submitted by anonymous - 2 years ago
2

Ultimate markdown parser

ECMAScript (JavaScript)
In order to neasting parsing work you need to run this regex multiple times on same target.
Submitted by Mateusz Budzisz - 2 years ago
2

RFC3339 - JavaScript

ECMAScript (JavaScript)
Regex to validate a string that is RFC3339 compliant in JavaScript. RFC3339: https://www.rfc-editor.org/rfc/rfc3339. Expands upon: https://regex101.com/r/qH0sU7 by adding named capture groups for coding best practices.
Submitted by Elliot Huffman - 2 years ago (Last modified 2 years ago)
2

Palindromes

PCRE2 (PHP >=7.3)
Matches palindromes: arbitrary length ignores non-significant characters (spaces, ponctuation) ignores accents, provided the text is NFD-normalized recursive palindromes (e.g. "a été à"): either match the longest one ("a été à") or the nested ones individually ("a", "été", "à") (see comment)
Submitted by NicolaF_ - 2 years ago (Last modified 2 years ago)
2

Phone number for all countries

.NET 7.0 (C#)
Phone number for all countries. Valid symbols: ( ), -, whitespace
Submitted by Alexander Smirnov - 2 years ago
2

Get ip address (only ipv4) Validator

.NET 7.0 (C#)
Get ip address (only ipv4) Validator
Submitted by Mr.Tang - 2 years ago (Last modified 2 years ago)
2

Aus Mobile number

.NET 7.0 (C#)
validates against multiple common formats
Submitted by anonymous - 2 years ago
1...7273747576...900

Community Library Entry

0

Regular Expression
.NET 7.0 (C#)

@"
^((((([a-zA-Z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-zA-Z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-zA-Z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-zA-Z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-zA-Z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-zA-Z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-zA-Z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-zA-Z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-zA-Z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-zA-Z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?)[;]?)+$
"
gm
Open regex in editor

Description

Validate a list of emails separated by a semicolon. Supports emails with accents and other alphabets. Valid email:

Abc@example.com;Abc.123@example.com;user+mailbox/department=shipping@example.com;éüöä^0@émäil.côm !#$%&'*+-/=?^_`.{|}~@example.com;"Abc@def"@example.com;"Fred Bloggs"@example.com;"Joe.\Blow"@example.com;Loïc.Accentué@voilà.fr δοκιμή@παράδειγμα.δοκιμή;我買@屋企.香港;二ノ宮@黒川.日本;медведь@с-балалайкой.рф;संपर्क@डाटामेल.भारत

Submitted by Mib - 3 years ago