visible-character encoding?

[mattbishop]

Thank you for publishing this codec. Would you consider supporting a visible character set? I want to use encoded strings in data and it would help to be able to see them. I have a similar utility in my own code that uses this character set (non-contiguous BTW):

!#$%()*,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[]^_abcdefghijklmnopqrstuvwxyz{|}~¡¢£¤¥¦§¨©ª«¬®¯°±²³µ¶»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏ