Here is the simplest example of what I'm playing with.

#!/usr/bin/perl 

use strict;
my $DOWARN = 0;

BEGIN { $SIG{'__WARN__'} = sub { warn $_[0] if $DOWARN } }

my $symbol_list = "symbolsV1p1.dat";
my @symbol_pool = ();
my $symbol_size = 0;
my $index = 0;
my $seed = "while ";
my $embryo = $seed;
my $MAX_ITER = 10;
my $i = 0;
my $result = undef;

print "test.pl started...\n";

# Open my file list of symbols and functions 
# I will randomly jumble around and eval. 
open(SYMBOLS, "<$symbol_list") or die "Could not open $symbol_list: $!
+\n";

while (<SYMBOLS>) {
    chomp $_;
    print "symbol_pool character is: $_\n";
    push(@symbol_pool, $_);
}
close(SYMBOLS);

$index = int(rand($symbol_size));
print "Initial embryo is:\n$embryo\n";
while (1) {
    $embryo = $embryo . $symbol_pool[$index] . ";";

    $result = eval($embryo);

    # Print out the successful string eval's
     if ($result != undef) {
        print "\n\nA working one liner has been generated!\n";
        print "$embryo\n";
        print "Line: $i\n\n";
        $i++;
    }

    # Truncate the string to keep it from growing infinitely long
    if (length($embryo) >= 80) {
        $embryo = $seed;
    }

    # Stop the script after I get a few successful string eval's
    if ($i == $MAX_ITER) {
        print "Program finished\n";
        exit(0);
    }

    $index = int(rand($symbol_size));

}

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In reply to Re^2: Perl 5.10 eval($string) memory leak by fuzzmonkey
in thread Perl 5.10 eval($string) memory leak by fuzzmonkey

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