Regular Expressions 101

A Unicode friendly parser for Datalog, the functor-free subset of pure Prolog.

Can be used to test the validity of an external resource `` function isExternalUrlResource($url) { if(preg_match('!^(?https?)?:?(?\/\/)(?[a-zA-Z0-9]+[\.]+[a-zA-Z0-9-.]+)(?:\d+)?(?[a-zA-Z0-9\/]+.*)?$!i', $url, $matches)) { return isset($matches['host']) && isset($matches[...

Depending on RE parser, you will be left with MacOS scutil service keys (UUIDs) and their servicetag, if any. Developed while working on a very elusive problem

When using the MS Graph API, Microsoft in their infinite wisdom don't always just send you back the resource ID - for chats, they send this ridiculous string instead. This tiny bit of regex will let you grab the Chat ID easily without having to do some other crazy work to figure out what user chat t...

Safety-measure protocol for online communities.

This is to find profile ids for pixiv.net

regEx for simple date

See the chapter On the Subject of Passwords in Bomb Defusal Manual

Scrubbing plain text wanted to ignore extra whitespaces at the end of the string.

regex for '' deletion

dict python key and bracket

Extracts the / from links like https://steamcommunity.com/id/rafa_br34/ or https://steamcommunity.com/profiles/76561198449824687/

Title

Verifies whether each input line contains a valid three- or six-digit hexadecimal number, commonly used as color codes in CSS and other technologies. Each number must begin with the "#" sign. I've seen other regexes for this which use individual expressions for a three-digit number and a six-digit...

https://regex101.com/r/hIak43/1

Detects chess Algebraic notation. See: https://en.wikipedia.org/wiki/Algebraic_notation_(chess) Using Regexp groups to know what information is present on the notation (pieces or move disambiguation). Only supported by Flavor that has named group verification.

Regex for JSON Path Source Specs and cases were taken from here: Link to npm library jsonpath Accessibility...

RE-24806