Your existing code will work with very little change. 
          while (<TESTFILE>) {
          #@tmp = split;           # Split elements into an array.
          #push @AoA, [ @tmp ];    # Add an anonymous array reference 
+to @AoA.
          @tmp = split /\|/;
          $AoA[$tmp[0]-1] = []if !defined $AoA[$tmp[0]-1];
          push @{$AoA[$tmp[0]-1]}, $tmp[1];
          }

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Bill

In reply to Re: array of arrays by BillKSmith
in thread array of arrays by virtualweb

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