套件： libmath-base85-perl (0.4+dfsg-1)

Perl extension for base 85 numbers, as referenced by RFC 1924

RFC 1924 describes a compact, fixed-size representation of IPv6 addresses which uses a base 85 number system. Math::Base85 handles some of the uglier details of it.

The base 85 numbers (from 0 to 84) are as follows:

0..9 A..Z a..z ! # $ % & ( ) * + - ; < = > ? @ ^ _ ` { | } ~

At the moment, there's not much in this module. But it should be sufficient for the purposes of RFC 1924.

This module has a variable called $Math::Base85::base85_digits, which is a string containing the digits of the base 85 alphabet from lowest (0) to highest (~), in that order.