f_name may contain spaces, numbers, characters,... so I would go for a but then I couldn't use [...]? anymore to match the second line?

Get iframe src

A solution for capture query params.

Python

A more thorough UK postcode validator tested against all UK postcodes on a regular basis, but excluding the special GIRO postcode case out of personal preference. Additionally has capture groups for the In-code and Out-code sections. Requires case insensitive matching.

Checks validity of an EA number first two digits 01-12 followed by hyphen then a number from 0-4 and then 4 numbers or uppercase letters and ending in a 1 or 4 for example "05-1J7601". Adding a capital C to the beginning is also accepted "C05-1J7601", along with the entry of 2 X's hyphen and 6 X's ...

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)

With this C# regex, you can easily match/Parse Nested HTML tags. Example input: someTitle ...

Match any layer bracket pair

This is simplified from my last submission.

matches: + example: +52 33 3884 7720 +1 770 343 5788

This regex grabs all kinds of imgur links and groups them in meaningful names aswell. This way you have full flow-control in your python-scripts.