Retrieve the file extension of a filename

This expression looks for sequences of PHP arrays, either closed with ] or ) with unnecessary trailing commas and captures the content divided into three parts, except by the comma itself. You can use it to search an replace in editors like VSCode like this: Search: ([\])]),(\s\n\s*)([\])]) Replac...

Find and change changelog version numbers in a CHANGELOG.md file.

Hace coincidir números decimales y exponenciales aislados para el sistema de numeración decimal. 22e22 22e+22 +22e22 +22e+22 22.22 22. .22 22.e22 22.e+22 22.22e22 22.22e+22 .22e22 .22e+22 88e 88e+ e88 e+88 88e88.

Regex validação número celular e fixo Somente números nacionais Com ou sem DDI 55 (com ou sem + e/ou 00) DDD obrigatório (com ou sem parênteses) Com ou sem Dígito 9...

with obfuscation

Regex for parsing markdown link. Named group "text", "url" and "alt.

This regex captures the IDs in a message link in separate capture groups. Warning: Due to my personal use case, it doesn't care if it's a real Discord message URL. You can pretty easily add that yourself if you need it tho. Capturing groups: Match 1: The whole ID string starting with / and may be e...

RFC5322 with WHATWG standard email id regex pattern

Regex for validating ISO 8601:2004E durations, complete with named capture groups.

Given a string, find matching parenthesis, brackets, and/or curly brackets.

Regex for Matching Jap Romaji Chars. I am in the middle of making an interface for Anki that works life wanikani. This way I can practice my own cards instead of a set syllabus. For that I need to make a Japanese Kana input, so I went with the good old regex to match all the romaji groups which ca...

Matches any decimal number. Supports positive/negative sign, thousands separators, and implicit zeros.

Matches any mathematically correct decimal number which is not formatted.

Matches any mathematically correct dozenal number which is not formatted.

Matches any dozenal number. Supports positive/negative sign, thousands separators, and implicit zeros.

Matches dozenal numbers. Supports positive/negative sign and thousands separators.

Matches decimal numbers. Supports positive/negative sign and thousands separators.

Regex that matches the old ISBN-10 format and captures all relevant groups. It does not verify that the ISBN is valid though. The format specification is based on the following website: https://isbn-information.com/the-10-digit-isbn.html and the International ISBN Agency user's manual.

Regex that matches the new (as of 2007) ISBN-13 format and captures all relevant groups. It does not verify that the ISBN is valid though. The format specification is based on the following website: https://isbn-information.com/the-13-digit-isbn.html and the International ISBN Agency user's manual.