Beefy Boxes and Bandwidth Generously Provided by pair Networks
Welcome to the Monastery

Re: Better way to get the results of grep()?

by eye (Chaplain)
on Dec 09, 2009 at 19:44 UTC ( #812017=note: print w/replies, xml ) Need Help??

in reply to Better way to get the results of grep()?

Rather than using an intermediate array and saving its first element, you could save the first element from the list that grep produces.
($curFrom) = grep(/^From:/, @header); ($curSubject) = grep(/^Subject:/, @header);
Note that using the 'o' modifier on the regular expression does not offer a benefit in this instance. It is only useful when the regular expression would be re-evaluated on each execution (as when it includes a variable).

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://812017]
and all is quiet...

How do I use this? | Other CB clients
Other Users?
Others examining the Monastery: (4)
As of 2017-01-21 16:51 GMT
Find Nodes?
    Voting Booth?
    Do you watch meteor showers?

    Results (185 votes). Check out past polls.