Beefy Boxes and Bandwidth Generously Provided by pair Networks
There's more than one way to do things
 
PerlMonks  

Re: Custom Sort An AoA

by johngg (Canon)
on Apr 01, 2014 at 18:34 UTC ( [id://1080622]=note: print w/replies, xml ) Need Help??


in reply to Custom Sort An AoA

A kind-of recursive sort that doesn't require decoration.

use strict; use warnings; use Data::Dumper; my @AoA = ( ['blah', 'asdf', 'foo', 'bar'], ['two'], ['zzz', 'def', 'ghi'], ['one'], ['mmm', 'def', 'ghi'], ['qqq', 'xyz', 'aaa'], ); my @sortedAoA = do { my $recSort; $recSort = sub { my @arrA = @{ $_[ 0 ] }; my @arrB = @{ $_[ 1 ] }; return 0 unless @arrA; return ( pop( @arrA ) cmp pop( @arrB ) ) || $recSort->( \ @arrA, \ @arrB ); }; sort { @$a <=> @$b || $recSort->( $a, $b ) } @AoA; }; print Data::Dumper->Dumpxs( [ \ @sortedAoA ], [ qw{ *sortedAoA } ] );

The output.

@sortedAoA = ( [ 'one' ], [ 'two' ], [ 'qqq', 'xyz', 'aaa' ], [ 'mmm', 'def', 'ghi' ], [ 'zzz', 'def', 'ghi' ], [ 'blah', 'asdf', 'foo', 'bar' ] );

I hope this is of interest.

Update: Renamed the @revA and @revB variables to @arrA and @arrB as the final solution used pop rather than reverse and shift but I'd forgotten to rename at the time.

Cheers,

JohnGG

Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Node Status?
node history
Node Type: note [id://1080622]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this?Last hourOther CB clients
Other Users?
Others drinking their drinks and smoking their pipes about the Monastery: (3)
As of 2024-04-26 00:33 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found