Matches alphanumeric, @, . , -

There is not word boundary between the >< and as there seem to be at least 1 or more uppercase characters, then quantifier can be + to match 1 or more times. If you don't want to split at the start of the string, creating an empty entry in the result list, you can assert using a negative lookbehind ...

Camel Case - digits allowed - Upto 3 upper case letters To be proper camel case a word with digits allowed and upto 3 upper case letters, a word: MUST start with a lower case alphabet (a through z) MUST have no spaces, punctuation or special characters CAN have at most 3 uppercase alphabets in a ro...

To be proper camel case a word with no digits allowed and upto 3 upper case letters, a word: Must start with a lower case alphabet (a through z) Must have no digits (0 - 9) MUST have no spaces, punctuation or special characters Can have at most 3 uppercase alphabets in a row Can end in an uppercase ...

A neat regular expression to extract web urls and emails from a paragraph or a text stream.

Flexible postcode validation with or without space as outlined here, but added optional space for flexibility https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/488478/Bulk_Data_Transfer_-_additional_validation_valid_from_12_November_2015.pdf

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

nginx access log regex

find/replace oracle package body new type

Substitui tudo que não for letra, número e traço

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

Inverts the 2 attributes

Guid parser

(\+977)?9\d{8}

No leading or trailing spaces

ipv4 with optional port

Match all filenames in any URL including those with ANSI escaped characters (dotNET version)

Developed for posh-git

[A-Za-z0-9]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+) `

Regex para uso com Grafana Loki Log feito via Mangle, com prefix $user do freeradius.