Regular Expressions find/replace

Question

How to I do a search for @anydomain.anyTLD using regular expressions?

Answer 1

@[a-zA-Z0-0\-]*\.[a-zA-Z\.]*

You could improve that but I don't think n++ deals with more complicated regex patterns.

Ideally we'd just use something like

/@[a-z0-9\-]\.[a-z\.\-]{1,40}/i

Which supports everything from the iana TLD list But N++ doesn't support that.

And if we want to get fancy we could do

(?:[a-z0-9!#$%&'*+/=?^_{|}~-]+(?:.[a-z0-9!#$%&'*+/=?^_{|}~-]+)*|"(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])*")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[a-z0-9-]*[a-z0-9]:(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21-\x5a\x53-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])+)\])

Which supports RFC2822 (see here for more details)