I'd turn things outside in a little and have the sub actually sort the list rather than just supply a compare function especially as the sub name implies that sorting is what it is likely to do. Consider:

use strict;
use warnings;

my %sorts = (
    'case'   => sub {return sort @_},
    'ignore' => sub {return sort {uc $a cmp uc $b} @_},
    'num'    => sub {return sort {$a <=> $b} @_},
    'len'    => sub {return sort {length $a <=> length $b} @_},
);
my $modeMatch = '(' . join ('|', keys %sorts) . ')';


sub shortSorts {
    my ($type, @list) = @_;
    my ($mode) = lc ($type) =~ $modeMatch;

    @list = map {scalar reverse $_} @list if $type =~ /\brev\b/i;
    @list = $sorts{$mode}->(@list);
    @list = map {scalar reverse $_} @list if $type =~ /\brev\b/i;
    @list = reverse @list if $type =~ /\bdesc\b/i;

    return @list;
}

my @unsorted_array = qw(Red yellow Green cyan Blue magenta);

for my $sortType ('case rev desc', 'case desc', 'ignore') {
    print "$sortType:\n   ", join (', ', shortSorts($sortType, @unsort
+ed_array)), "\n";
}

[download]

Prints:

case rev desc:
   yellow, Green, cyan, Blue, Red, magenta
case desc:
   yellow, magenta, cyan, Red, Green, Blue
ignore:
   Blue, cyan, Green, magenta, Red, yellow

[download]
True laziness is hard work

In reply to Re: short sorts by GrandFather
in thread short sorts by Lady_Aleena

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