Regular Expressions 101

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Community Patterns

2

Asciidoc PlantUML Block

Java 8
Regex to select PlantUML Block in Asciidoc documents
Submitted by anonymous - 3 years ago
2

Pattern for usual email address

PCRE2 (PHP >=7.3)
Intentionally leaves out weird stuff such as IPV4 or IPV6 for the domain part and quoted usernames with invalid chars in the addressee part. Handles internationalized domains with soft validation (only structural matching) and blocks domain parts starting or ending with dashes or containing double d...
Submitted by Victor Schröder - 3 years ago
2

Max 30 Characters excluding brackets

PCRE2 (PHP >=7.3)
This is a simple regex for 30 characters limit excluding brackets
Submitted by jusuchin85 - 3 years ago (Last modified 3 years ago)
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 - 3 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 - 3 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 - 3 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 - 3 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 - 3 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

Task 4 Quiz

PCRE2 (PHP >=7.3)
It needs a major modification, since matching an integer is required. The accepted answer \d+ involves only "positive" integers. But -333 or +777 are also integers, which leads to two possible solutions with the last one being the most accurate: -?\d+ : The hyphen (optional minus sign) and a digit...
Submitted by seQuienSoy - 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

Mime type parser

.NET 7.0 (C#)
A "simple" regex to parse mime types. Handles all commonly occurring parts of a mime type string such as: Type Subtype Subtype's with an extra extension (e.g. svg+xml) (Optional input) Multiple parameters (Optional input)...
Submitted by Vespion - 2 years ago (Last modified 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
1...879880881882883...902

Community Library Entry

2

Regular Expression
PCRE2 (PHP >=7.3)

/
https:\/\/r(?:g|apidgator)\.(?:to|net)\/file.*?(?:(?=">)|(?:html|htm|rar|zip|txt)(?=" ))
/
gm
Open regex in editor

Description

  • 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
  • Locate the match information section and click on the Export icon
  • Select "Plain Text" from the popup modal side menu
  • Copy your Rapidgator Links without stress.

If it's helpful to you, don't forget to upvote so that others can benefit as well.

Submitted by SmartCoder - 3 years ago