ipv4 with optional port

No leading or trailing spaces

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

Guid parser

Inverts the 2 attributes

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

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

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 ...

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...

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 ...

Matches alphanumeric, @, . , -

see owasp recommendation for things to remove from a csv export. this expression matches on following characters [. , ; + = - @ ' "] also carriage return make sure to clear strings for whitespace and choose your preferred methods for additional security from the examples in the owasp documentation...

sdfdsf

Any WhiteSpace Character

custom email

header of output from > 7z i

find title and page in text

I use this in a JSON template together with JObject data to create a JSON string

Match 1 is the IPID

(@url)([\s]=[\s])(?:')(.)(?:')(?:;)