Supply an appropriate regular expression which will find all words which have the character ‘a’ in them, then 0 or more characters later have the string “epe”, then 0 or more characters later have the character “y”. The “y” character must occur AT THE END of the word in question, but the first ‘a’ d...

Invalid entries still can be interpreted, e.g. encode(0xAB) => qw== however invalid encoding qx== still can be correctly decoded: ...

Validates a common format for OAuth scopes.

FInds a valid date string in the formats mm-dd-yy or mm/dd/yy, as well as mm-dd-yyyy and mm/dd/yyyy.

There may be circumstances when you need to determine if there is any usage of XCTest's @testable annotation in unit test cases. One usage of this regex could be for a custom SwiftLint rule to require or disallow usage of @testable

Get all ampersands, but omits the ampersands that are part of any HTML entities.

Without lookaround, this regular expression also accepts P and PT as valid duration strings. If your library supports lookaround, I recommend that you use Full ISO 8601 Duration with lookaround (also in the library) instead, which will also reject P and PT.

With lookaround, this regular expression will reject P and PT as invalid duration strings. If your library does not support lookaround, I recommend that you use Full ISO 8601 Duration without lookaround (also in the library) instead, with the caveat that you will need to verify the string is not P o...

https://emailregex.com/

For each that it founds, it inserts a <![CDATA[ ... ]]>

Telephone number strict international section :- starting with '+' or '00' flexible local section for wider international and allows spaces for visual formatting Close enough for many requirements. Tweak to match your country/circumstances better. ...

(\([0-9]{2}\)\s?[0-9]{4,5}-?[0-9]{3,4})|([0-9]{10,11})|([0-9]{2}\s?[0-9]{8,9})