Hash of array of hashes

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

Hi Monks, I am trying to create a Hash or array of hashes for the following condition

1 | p1=v1,p2=v2 | p3=v3,p4=v4
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My hash of array of hashes should be some thing like this

%hash = (
1 => [
    {p1 => v1, p2 => v2},
    {p3 => v3, p4 => v4}
    
]
);
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I have written the following code. It seems to be not working, can any one suggest what is wrong in this snippet

my @conditioin = split(/\|/);
%{$mapping_rule{$condition[0]}}->[0]} = map {split (/=/, $_)} = map {s
+plit (/\,/, $condition[1])};
%{$mapping_rule{$condition[0]}}->[1]} = map {split (/=/, $_)} = map {s
+plit (/\,/, $condition[2])};
foreach my $rule (keys %mapping_rule) {
    print "rule is $rule\n";
    foreach my $cond (@{$mapping_rule{$rule}}) {
        foreach my $param (keys %{$mapping_rule{$rule}->{$cond}}) {
            print "Parameter is $param and value is ${$mapping_rule{$r
+ule}->{$cond}->{$param}}\n";
        }
    }
}
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Comment on Hash of array of hashes Select or Download Code

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Re: Hash of array of hashes by monarch (Priest) on Jul 08, 2005 at 06:38 UTC
Solved! Read more... (874 Bytes) Produces: `$VAR1 = { '1' => [ { 'p2' => 'v2', 'p1' => 'v1' }, { 'p3' => 'v3', 'p4' => 'v4' } ] };` [download]	[reply] [d/l] [select]
Re^2: Hash of array of hashes by Anonymous Monk on Jul 08, 2005 at 06:51 UTC
Thanks, that was really fast and really good.	[reply]
Re: Hash of array of hashes by sh1tn (Priest) on Jul 08, 2005 at 06:28 UTC
`... foreach my $cond (@{$mapping_rule{$rule}}) { foreach my $param (keys %{$cond}) { ...` [download]	[reply] [d/l]
Re: Hash of array of hashes by ww (Archbishop) on Jul 08, 2005 at 14:06 UTC
You may wish to note that $condition[0] does not relate to any element of @conditioin ...which is just one of the examples in your original post that show why using strict and warn is such good practice. the (relevant) others are: `Unmatched right curly bracket at mapping.pl line 7, at end of line syntax error at mapping.pl line 7, near "]}"` [download] Perhaps these are merely typos created while posting your question; if so, another recommendation: cut and paste code, rather than risk introducing irrelevant typos (or, as has occasionally occured, fixing a problem by eliminating a typo).	[reply] [d/l]