Beefy Boxes and Bandwidth Generously Provided by pair Networks
XP is just a number
 
PerlMonks  

Re^4: sorting a complex multidimensional hash

by BrowserUk (Pope)
on Jul 22, 2004 at 20:47 UTC ( #376714=note: print w/ replies, xml ) Need Help??


in reply to Re^3: sorting a complex multidimensional hash
in thread sorting a complex multidimensional hash

That's not too hard to do:

print for map{ my( $n1, $a1, $n2, $a2, $value ) = unpack 'N A4 N A4 A*', $_; "{$n1.$a1}{$n2.$a2} => $value" } sort map { my $key1 = $_; map { pack 'N A4 N A4 A*', split( '\.', $key1 ), split( '\.', $_ ), $hash{ $key1 }{ $_ } } keys %{ $hash{ $_ } }; } keys %hash;

but it does introduce a limitation.

As coded above, the character part of the keys is limited to 4 characters each. They can be shorter but no longer. If this isn't long enough, you must adjust the formats ( 'N A4 N A4 A*' ) to say 'N A10 N A10 A*' for up to 10 chars, in both the pack and the unpack.


Examine what is said, not who speaks.
"Efficiency is intelligent laziness." -David Dunham
"Think for yourself!" - Abigail
"Memory, processor, disk in that order on the hardware side. Algorithm, algoritm, algorithm on the code side." - tachyon


Comment on Re^4: sorting a complex multidimensional hash
Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://376714]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others chanting in the Monastery: (7)
As of 2015-07-31 03:47 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









    Results (274 votes), past polls