You have a long method that uses local variables in such a way that you cannot apply Extract Method

Turn the method into its own object so that all the local variables become fields on that object. You can then decompose the method into other methods on the same object.

(Fowler, p. 135)

Here's how it looks:

sub validate{
    my $self = shift;
    my $errors_ref;

    my $validation_profile = $self->get_validation_profile();
    my $input = $self->get_input();
    my $result = $self->process_input_against_profile(
        $input => $validation_profile );
    if ( $result->{success} ) {
        return { success => 1 };
    }
    else {
        $errors_ref = $self->process_errors( $result );
        return {
            success => 0,
            errors => $errors_ref,
        };
    }
}
[download]

becomes

sub validate{
    my $self = shift;

    return Validator->new( $self->get_input )->validate();
}

package Validator;

sub validate{
    my $validator = shift;
    my $result = $validator->process_input_against_profile();
    if ( $result->success() ) {
        return { success => 1 };
    }
    else {
        return {
            success => 0,
            errors => $result->errors(),
        };
    }
}
[download]

Get the code

perl -e 'split//,q{john hurl, pest caretaker}and(map{print @_[$_]}(joi
+n(q{},map{sprintf(qq{%010u},$_)}(2**2*307*4993,5*101*641*5261,7*59*79
+*36997,13*17*71*45131,3**2*67*89*167*181))=~/\d{2}/g));'
[download]