Here's my take. These assumptions are all easily changed in the code:

• A 'non-zero' number may have leading zero(s) (i.e., is numerically != 0), e.g., '01', '0023';
• A 'zero' may have multiple 0 digits (again, numerically == 0), e.g., '00', '000';
• A single non-zero number is 'consecutive';
• 'Consecutive' means consecutive increasing, with differences == 1.

>perl -wMstrict -le
"my $s = '0-0-0-0-23-34-2345-345-21-0-0-0-256-78-'
       . '0-0-0-0-0-0-0-56-45-3-34-0-'
       . '2-3-4-5-6-0-0-0-0-0-0-3-2-1-0-0-0-0-0-'
       . '21-22-0-0-0-0-1-0-0-0-0-'
       . '24-25-0-0-0-33-34-0-00-000-0000-'
       . '01-02-0-0-0-0-3-4-01-01-01-01'
       ;
 ;;
 my $nz = qr{ (?<! \d) \d* [1-9] \d* (?! \d) }xms;
 my $z  = qr{ (?<! \d) 0+            (?! \d) }xms;
 ;;
 my $nzs_4zs = qr{ $nz (?: - $nz)* (?: - $z){4} }xms;
 ;;
 print qq{'$_'}
   for grep { consecutive_nzs($_, $nz) } $s =~ m{$nzs_4zs}xmsg;
 ;;
 sub consecutive_nzs {
   my ($s, $nz_rx) = @_;
   my @nzs = $s =~ m{ $nz_rx }xmsg;
   $nzs[$_]+1 == $nzs[$_+1] || return for 0 .. $#nzs - 1;
   return 1;
   }
"
'2-3-4-5-6-0-0-0-0'
'21-22-0-0-0-0'
'1-0-0-0-0'
'33-34-0-00-000-0000'
'01-02-0-0-0-0'
[download]

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