On 6/7/07, Paul Lalli <[EMAIL PROTECTED]> wrote:
On Jun 7, 10:53 am, [EMAIL PROTECTED] (Rodrick Brown) wrote:
> Is there a simple method to read data from scalar like a file handle?
Yes. Simpler than you might imagine. Just pass a reference to your
scalar to open(), rather than the name of a file.
#!/usr/bin/perl
use strict;
use warnings;
my $data = "lots of random\ntext including\newlines\n";
open my $fh, '<', \$data
or die "Cannot open data stream: $!";
print while <$fh>;
__END__
Paul Lalli
snip
Nifty, I didn't remember this at all, so I went back and reread the
perldoc for open. Apparently it was added with 5.8. So, amend my
answer to if your code might run on a pre-Perl 5.8 interpreter use
IO::String, otherwise use the new functionality.
from perldoc -f open
Since v5.8.0, perl has built using PerlIO by default. Unless
you've changed this (i.e. Configure -Uuseperlio), you can open
file handles to "in memory" files held in Perl scalars via:
open($fh, '>', \$variable) || ..
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