I doubt there are any simple solutions with just pack and unpack. Most of the complexity of the base2048 implementation I've linked comes from paying attention to Twitter's rules about what it considers a "text" or "CJK" or "sendable" character. Perl's comprehensive Unicode support (character classes in regexes etc.) might be useful, if you were to rewrite the thing in it.

In reply to Re^3: Losing Bits with Pack/Unpack by kikuchiyo
in thread Losing Bits with Pack/Unpack by o0lit3

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