[Email-SIG] fixing the current email module

[Glenn Linderman]

On approximately 10/8/2009 8:47 PM, came the following characters from 
the keyboard of Tokio Kikuchi:
>>> Actually, as long as the prepended text is ASCII, all that work can be
>>> done on the encoded value.  When it is not ASCII, it may still be
>>> separated and recognizable.  Still that logic is more complex than
>>> decoding, handling as Unicode, and encoding.... when it works.  Just
>>> pointing out that there is more than one way to do things... 
>>>       
>
> Oh, really?
>
> Base64 is 3 to 4 octets encoding and there is no way to prepend padding.
>   

In header values, encoding is done using encoded-words.  A header value 
consists of a sequence of ASCII words, and encoded-words.  While an 
encoded word, that uses base64 encoding cannot easily be adjusted to 
prepend data into that encoded-word, additional ASCII or encoded-words 
can be prepended in front of the other ASCII or encoded words within the 
header-value.

So, yes, really!

-- 
Glenn -- http://nevcal.com/
===========================
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