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

Re: create search string from array elements

by friedo (Prior)
on Jul 12, 2005 at 13:19 UTC ( #474270=note: print w/replies, xml ) Need Help??


in reply to create search string from array elements

If you want to be clever you could make an alternating pattern from the list of dates:

my $pat = join '|', @dates; my @files = grep /$pat/, @logfiles;

But I have no idea if that would be faster or slower than just doing a nested loop. A nested loop at least gives you the option of skipping the remainder when you've found a match.

my @files; foreach my $file( @logfiles ) { foreach my $date( @dates ) { if ( $file =~ /$date/ ) { push @files, $file; last; } } }

Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Node Status?
node history
Node Type: note [id://474270]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others making s'mores by the fire in the courtyard of the Monastery: (5)
As of 2023-02-07 09:28 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    I prefer not to run the latest version of Perl because:







    Results (38 votes). Check out past polls.

    Notices?