I need help creating a hash.  I am Stumped!

Posted on 2003-03-27
Medium Priority
Last Modified: 2010-03-05
I need to create a hash by parsing the following information.  I would like my hash to look like this.

%Hashname (
            template:Actioncode => i
            SBID       => 100200401
            BusName    => Mikes System Test1
            City       => Douglas
            State      => MA
            Zip        => 01516
            Phone      => 5084742781
            CategoryID => 14438

This is the information that I would be parsing in the file.  The idea is to recreate the hash for each line below the template line.
I would greatly appreciate this.  One thing to note is that the script would have to be dynamic becuase the template line wont always look like that.  It could have extra fields.  Thank you!

i|100200401|Mikes System Test1|Douglas|MA|01516|5084742781|14438
i|100200402|Mikes System Test2|Douglas|MA|01516|5084742782|14438
i|100200403|Mikes System Test3|Douglas|MA|01516|5084742783|14438
i|100200404|Mikes System Test4|Douglas|MA|01516|5084742784|14438
i|100200405|Mikes System Test5|Douglas|MA|01516|5084742785|14438

Here's all i got now.

# open up the text file to parse.
open (IUD, "SomeTextfile.txt") or die "Can't open textfile: $!";
while (<IUD>)
   # create my hash

close IUD;

Question by:maddhacker24
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LVL 48

Expert Comment

ID: 8221399
use strict;

open IUD, "SomeTextfile.txt" or die "Can not open textfile: $!\n";

chomp ($_) = <IUD>;
my @fields = split(/\|/);
my %hash;

while (<IUD>) {
  my $i=0;
  foreach split(/\|/) {
    $hash{$fields[$i]} = $_;

close IUD;

However, I'm sure someone will come up with a 1 line map solution.

Accepted Solution

holli earned 500 total points
ID: 8223326
use Data::Dumper;
use strict;

open (IUD, "t.txt") or die "Can't open textfile: $!";

# split fields line
my $line = <IUD>; chomp ($line);
my @f = split (/\|/, $line);
my @data = ();
my %data = ();

while ($line = <IUD>)
  # split value line
  chomp ($line);
  my @v = split (/\|/, $line);

  # create my hash
  my %h = map { $f[$_], $v[$_] } (0..$#v);

  # build array of hashes
  push @data, \%h;

  # or hash of hashes with SBID as field
  $data{$f[1]} = \%f;


print Dumper (\@data);
close IUD;

Author Comment

ID: 8289022
Thank you very much!

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