matches 123.4f 123.4F .4f .4F 5f 5F

Value must be either true or false

Validates Multiple email addresses seperated by comma.

-2.02^3(2+3.024)+3.14159-(45^23)/(19-4)

An extremely complete regex, that... Accepts international phones and most of regional phone numbers; Accepts phone numbers with/without "+", with/without space or "-" in the middle of the phone, and more. Gets groups of all important data of the phone number (local code, country code and the phone ...

this will exclude particular phrase from a line. means it will match only those line which dont have those word

smargs not margins

Matches the XML pages of the /quizzes routes for feedpager

https://www.conventionalcommits.org/en/v1.0.0/

For string splitting / deconstructing

Parses MS SQL Server version returned from executing SELECT @@version

PHP serialize / unserialize __sleep __wakeup __serialize __unserialize

The regex to match a single pro forma modification with all its intricacies.

This regex is to match Ascending or descending order of 8 digit number

By inserting this regex in a programming language to test it against Codeforces 1800A you'll solve the task