From: aaaa aaaaaaaaaaa <mk@...>
Date: 2010-08-18T18:23:45+09:00
Subject: Re: Base64 multiple by 4

Brian Candler wrote:
> irb(main):001:0> s = ["hello world"].pack("m")
> => "aGVsbG8gd29ybGQ=\n"
> irb(main):002:0> s.unpack("m").first
> => "hello world"

Once again, that's what not I wanted. Heres an example of what I wanted 
(and now have):

>> RBase64.charset = (20..84).map(&:chr).join
=> "\x14\x15\x16\x17\x18\x19\x1A\e\x1C\x1D\x1E\x1F 
!\"\#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRST"
>> RBase64.encode "my secret string"
=> "/+840J)70:)H\x1C\e!H0:9B-D=="
>> RBase64.decode "/+840J)70:)H\x1C\e!H0:9B-D=="
=> "my secret string"
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