Cloud Flare

email format control

Case insensitive match the whole word betwween \bword\b

This regular expression is build from the description of NINO number of GOV.UK,

Visual tag and Back tag cannot more than 15 characters or only can contain uppercase, lowercase, space and dash.

Convert camelCase to snake_case def camelCase2snake_case(txt): """ Convert camelCase to snake_case https://regex101.com/library/wUcSv4...

For example, using `Carl-bot to dump members of the @everyone role ordering highest of id`: `!dump @everyone %i:%u -o id` Example of return: 498984530968051713:lanjt#2129 ......

example

Match any url in text or html (http, https)

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 ...

This RegEx removes unused elements such as inline comments and blank lines in python code. This will save you tokens and time when using GPT-3+ or ChatGPT to help code and debug.

Accomodate for Discord's username changeover and match against either the old username or the new username. But only one or the other. Match: CesarHvl#9000 cesarhvl cesar.hvl...

The best way to parse URL via Regex. This can be used in javascript, PHP, etc.

Validates a streetname + housenr + extension Somestreet 12 b

A regex for validating decimal numbers in the European number format (in many parts of Europe at least, including Germany). A comma is used as a separator for the decimal number, a dot as a separator for thousand places.

Regex expression for comparing decimal numbers with the usual comparison operators such as (greater than), >= (greater than or equal to), != (not equal to), == (equal to), ... The regex also allows filtering of data from e.g. a database, whereby the first value is not needed, e.g. [FIELD] < 100

Port https://regex101.com/library/cX0pJ8 to PCRE2 (PHP >= 7.3)