tl;dr, but... for parsing a VCD file, don't reinvent this wheel if you don't have to: Verilog::VCD. For example, the following code parses your VCD file and shows all signal names, times and values: 
use warnings FATAL => 'all';
use strict;
use Verilog::VCD qw(parse_vcd);

my $file = shift;
my $vcd  = parse_vcd($file);

for my $code (keys %{ $vcd }) {
    my $name  = "$vcd->{$code}{nets}[0]{hier}.$vcd->{$code}{nets}[0]{n
+ame}";
    my $times = @{ $vcd->{$code}{tv} };
    for my $aref (@{ $vcd->{$code}{tv} }) {
        print "$name @{ $aref }\n";
    }
}

__END__

JUNKSIGNALS_TB.RIGHT 0 1
JUNKSIGNALS_TB.RIGHT 10 0
JUNKSIGNALS_TB.SERIAL 0 1
JUNKSIGNALS_TB.I2 0 0
JUNKSIGNALS_TB.DUTJNKCELL.lnx5_out 0 0
JUNKSIGNALS_TB.DUTJNKCELL.lnx3_out 0 0
JUNKSIGNALS_TB.DUTJNKCELL.lnx4_out 0 1
JUNKSIGNALS_TB.I1 0 0
JUNKSIGNALS_TB.DUTJNKCELL.lnx2_out 0 1
JUNKSIGNALS_TB.DUTJNKCELL.lnx2_out 10 0
JUNKSIGNALS_TB.ZEN 0 1
JUNKSIGNALS_TB.ZEN 10 0
JUNKSIGNALS_TB.DUTJNKCELL.lnx0_out 0 0
JUNKSIGNALS_TB.DUTJNKCELL.lnx0_out 10 1
JUNKSIGNALS_TB.DUTJNKCELL.lnx1_out 0 0
JUNKSIGNALS_TB.DUTJNKCELL.lnx1_out 10 1
JUNKSIGNALS_TB.I0 0 0
JUNKSIGNALS_TB.I0 10 1

[download]

If you can explain in words what you are trying to accomplish, I can try to help (I speak Verilog). Also keep in mind that hashes are un-ordered in Perl, and generally, you want to sort the keys.

UPDATE: A few years ago, some translated this Perl code to Python: https://pypi.python.org/pypi/Verilog_VCD

In reply to Re: Why are Hash keys different for the same hash? Confusing. (VCD) by toolic
in thread Why are Hash keys different for the same hash? Confusing. by Anonymous Monk

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