Doesn't look that bad to me...
#!/usr/bin/perl -l
use strict; # https://perlmonks.org/?node_id=11125762
use warnings;
my $set = Some::Module->new(qw(oops foo bar bat));
print $set->contains('foo'); # true
print $set->contains('FOO'); # true
print $set->contains('Ops'); # false
print $set->after('foo'); # 'bar'
print $set->is_last('bar'); # false
print $set->is_last('BAT'); # true
print $set->is_last('bat'); # true
package Some::Module;
sub new
{
my $self = shift;
bless [ @_ ], ref $self || $self;
}
sub contains
{
my ($self, $item) = @_;
scalar grep /^\Q$item\E\z/i, @$self;
}
sub after
{
my ($self, $item, %hash) = @_;
@hash{map lc, @$self} = @$self[1..$#$self];
$hash{lc $item};
}
sub is_last
{
my ($self, $item) = @_;
@$self ? $self->[-1] =~ /^\Q$item\E\z/i : 0;
}
Outputs:
1
1
0
bar
1
1
EDIT: fixed some incorrect comments
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