Re: Can a string be a file hanle?

Yes it can, have a look at perldoc -f open:

sub subroutine {
    my $fh = shift;
    print $fh "Hello, filehandle!\n";
}

my $dest;
open my $fh, '>', \$dest;
subroutine($fh);
close $fh;
print "\$dest is '$dest'";
[download]

Cheers,
CombatSquirrel.

Entropy is the tendency of everything going to hell.

Comment on Re: Can a string be a file hanle? Download Code

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Re^2: Can a string be a file hanle? by JediWizard (Deacon) on Sep 26, 2004 at 23:14 UTC
That is a cool trick. I looked in opentut and open and didn't see any indication that such a thing was possible. Where did you find out you could do this? May the Force be with you	[reply]
Re^3: Can a string be a file hanle? by graff (Chancellor) on Sep 26, 2004 at 23:40 UTC
If you look about a third of the way down on the "open" man page that you linked to in your own reply, you'll find the part that describes how 'File handles can be opened to "in memory" files held in Perl scalars...'	[reply]
Re^3: Can a string be a file hanle? by ambrus (Abbot) on Sep 27, 2004 at 19:26 UTC
Stringstreams were introduced somewhere near perl 5.8. Check if you have a new enough perl. If you didn't see this in perlfunc or perlopentut, you might have a too old version.	[reply]
Re^4: Can a string be a file hanle? by JediWizard (Deacon) on Sep 27, 2004 at 20:28 UTC
That is the problem. I was looking at the docs for Perl 5.6.1. I also have 5.8.0 installed on my machine, and looking at the docs for that, I do see the Stringstreams mentioned. Thank you ambrus. May the Force be with you	[reply]