Re^4: Need help from the esteemed monks on scoping/hashes

[garbage777]

Hi Dragonchild, As per your advice, I just rechecked that in the script at line 27 (below is the snippet of the script with line number), I am assigning each key, value pairs to a hash called "%mapping". Please see below -

     24        if (/NAME_MAP/ .. /PORTS/) {
     25          next if (/NAME_MAP/);
     26          next if (/PORTS/);
     27          %mapping = split;
     28          @keys = sort keys %mapping;
     29          foreach $k1 (sort keys %mapping) {
     30              print "$k1 = $mapping{$k1}\n";
     31          }
     32        }

However, it looks like in the next block of the code beginning at line "if (/D_NET/){...", the hash "%mapping" is not visible with in the "if(/D_NET/){..." block of the script. Please help as I am a total noobeee with Perl. Thank you very much for all the suggestions. Best Regards, Dan.

[matze]

With %mapping = split; you are overwriting your old mapping. You should use something like

my ( $key, $value ) = split;
$mapping{ $key } = $value if defined( $key ) and defined( $value );

to preserve previous mappings.