Simple Regex to *validate * (no extraction!) an IPv4 Range which can be a comma separated mixture of IPv4 addresses IPv4 CIDRs IPv4 Ranges like 1.1.1.1-1.1.1.10 Examples : ...

testing

Given a version number MAJOR.MINOR.PATCH, increment the: MAJOR version when you make incompatible API changes. MINOR version when you add functionality in a backward compatible manner. PATCH version when you make backward compatible bug fixes. A pre-release version MAY be denoted by appending a hyp...

substitutes \[...\] with $$...$$

Substitute the oneliner GPT equations \(..\) to tex like i.e. $..$

Credit Card Carrier Prediction This regex is specifically designed to predict from the first few characters which carrier type the credit card number is.

Matches some number of a's followed by the same number of b's, usually written as a^nb^n for all natural numbers n. For regular expressions as formally defined in formal language theory, this is impossible, but modern day regex engines can do far more than match just regular languages. Note that eve...

for finding and extracting numbers from the viewbox attribute. see also my generalized SVG number regex. v2: added support for scientific notation

for correctly parsing numbers in SVG attributes like path d or viewBox with regex v2: added support for scientific notation

This is made to validate an ISO 8601 input in a Terraform variable validation block: validation { condition = can(regex("^P(\\d+Y)?(\\d+M)?(\\d+D)?(T(\\d+H)?(\\d+M)?(\\d+S)?)?$", var.value)) error_message = "The value must be a valid ISO 8601 duration string representing time. (e.g. PT...

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In this example we are searching for all element/component in JSX that have the is="secondary" prop. This regex was tested with VS Code

(?(?:(?:25[0-5]|(?:2[0-4]|1\d|[1-9]|)\d)\.?\b){4}) Originating from ^((25[0-5]|(2[0-4]|1\d|[1-9]|)\d)\.?\b){4}$ at only 43 chars Source: Danail Gabenski

Teste

Validates and obtains the Telegram user's username according to the rules for creating usernames

Validate if class name pass this criteria: A valid name should start with a letter (a-z)[A-Z] , an underscore (_), or a hyphen (-) which is followed by any numbers, hyphens, underscores, letters. A name should be at least two characters long. Cannot start with a digit, two hyphens or a hyphen fo...

To check for Egyptian phone numbers using a regular expression Format of Egyptian phone numbers: It starts with 01 (indicating mobile numbers). Followed by one of the following digits representing the mobile provider: 0 for Vodafone. 1 for Etisalat....

A regular expression for extracting the author, repository name, and optional branch from a Bitbucket repository or tree URL. Handles both HTTP(S) and direct Bitbucket links.

A regular expression for extracting the author, repository name, and optional branch from a GitLab repository or tree URL. Handles both HTTP(S) and direct GitLab links.

A regular expression for extracting the author, repository name, and optional branch from a GitHub repository or tree URL. Handles both HTTP(S) and direct GitHub links.