perl-Class-Singleton: perl-Class-Singleton (Implementation of a "Singleton" class) perl-Class-Singleton: perl-Class-Singleton: Class::Singleton - Implementation of a "Singleton" class. perl-Class-Singleton: perl-Class-Singleton: perl-Class-Singleton: perl-Class-Singleton: perl-Class-Singleton: perl-Class-Singleton: perl-Class-Singleton: perl-Class-Singleton: