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Journal of nicholas (3034)

Friday April 14, 2006
05:39 PM

Who needs string eval?

[ #29330 ]

use strict;
use warnings;
require PerlIO::scalar;

unshift @INC, sub {
    my $file = $_[1];
    if (ref $file) {
        my $fh;
        open $fh, "<", $file or die $!;
        return $fh;

do \('print "Hello ' . (shift || "world") . '\n"');

No string eval there. No sir. I wonder if it circumvents things like Safe...


This is terser. You don't need the BEGIN block, but it demonstrates that the technique is robust and automatically lets regular filenames through. (In this case PerlIO/

use strict;
use warnings;

    unshift @INC, sub {

require PerlIO::scalar;

open my $fh, "<", \('print "Hello ' . (shift || "world") . '\n"');
do $fh;

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