How can I maintain a sorted hash in Perl?

Posted by srk on Stack Overflow See other posts from Stack Overflow or by srk
Published on 2010-03-25T09:20:30Z Indexed on 2010/03/25 17:43 UTC
Read the original article Hit count: 137

Filed under:

array

|

hashes

|

sorting

|

perl

 @aoh =(
     {
        3 => 15,
        4 => 8,
        5 => 9,
     },
     {
        3 => 11,
        4 => 25,
        5 => 6,
     },
    {
        3 => 5,
        4 => 18,
        5 => 5,
    },
    {
        0 => 16,
        1 => 11,
        2 => 7,
    },
    {
        0 => 21,
        1 => 13,
        2 => 31,
     },
    {
        0 => 11,
        1 => 14,
        2 => 31,
    },
    );

I want the hashes in each array index sorted in reverse order based on values..

@sorted = sort { ........... please fill this..........} @aoh;

expected output

@aoh =(
 {
    4 => 8,
    5 => 9,
    3 => 15,
 },
 {
    5 => 6,
    3 => 11,
    4 => 25,
},
{
    5 => 5,
    3 => 5,
    4 => 18,
},
{
     2 => 7,
     1 => 11,
     0 => 16,
},
{
    1 => 13,
    0 => 21,
    2 => 31,
 },
{
    0 => 11,
    1 => 14,
    2 => 31,
},
);

Please help.. Thanks in advance.. Stating my request again: I only want the hashes in each array index to be sorted by values.. i dont want the array to be sorted..

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