Beefy Boxes and Bandwidth Generously Provided by pair Networks
Your skill will accomplish
what the force of many cannot

Shuckin' the Email Addy

by Anonymous Monk
on Sep 07, 2000 at 06:10 UTC ( #31353=perlquestion: print w/replies, xml ) Need Help??

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

I've got some mailing lists in this format:




What I am working on is a bit of code to pull a clean email address out of either format and store it in a scalar (or perhaps two scalars.... one for the username and one for the domain). (The formats are mixed up within the mailing list file.)

Is there a simple regexp to do this?

Can someone help me? :)

(I can handle the code for looping through each line of the file. But I am stumped as to the precise regexp I need to use to extract the email address and whether or not I need to use split() or simply s/// or perhaps m// to do the trick.)

Perhaps there is more than one way to do it. :)

Replies are listed 'Best First'.
Re: Shuckin' the Email Addy
by chromatic (Archbishop) on Sep 07, 2000 at 06:17 UTC
    Note that the perlfaq correctly notes that there is no simple regex to match an RFC-822 compliant e-mail address. Please note this!

    With that in mind, if your data file is as simple as what you say, I would do something like this:

    (undef, $address, undef) = split '', $line;

    I wouldn't bother with trying to match anything else, I'd just split. Again, this depends on your text file being *very* simple, as simple as you've described it above.

    For anything else, the modules Email::Find and Email::Valid might come in handy.

      There is a module EMail::Find specifically for searching text for e-mail addresses. I don't know how well it works. It does come with RFC822 validation code (Email::Valid, mentioned elsewhere), though. There is also a module RFC::RFC822::Address that checks (strictly) for the validity of an RFC822 e-mail address.
      chromatic, that is exactly what I need!


      By the way, you're advisory about trying to validate e-mail addresses is well-taken, but the format of the source file is pretty simple so your split idea should fit the bill.

      Thanks again.

Log In?

What's my password?
Create A New User
Domain Nodelet?
Node Status?
node history
Node Type: perlquestion [id://31353]
Approved by root
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others musing on the Monastery: (5)
As of 2022-05-19 16:15 GMT
Find Nodes?
    Voting Booth?
    Do you prefer to work remotely?

    Results (72 votes). Check out past polls.