POP3 authentication error.
The writer adapter class
Represents an SMTP authentication error.
Represents an SMTP command syntax error (error code 500)
Raises when the given argument does not match required format.
An abstract class for enumerating pseudo-prime numbers.
Concrete subclasses should override succ, next, rewind.
An implementation of PseudoPrimeGenerator which uses a prime table generated by trial division.
Generates all integers which are greater than 2 and are not divisible by either 2 or 3.
This is a pseudo-prime generator, suitable on checking primality of an integer by brute force method.
Internal use. An implementation of Eratosthenes’ sieve
A set of rule and position in it’s RHS. Note that the number of pointers is more than rule’s RHS array, because pointer points right edge of the final symbol when reducing.