[squeak-dev] Re: The future of Squeak & Pharo (was Re: [Pharo-project] [ANN] Pharo MIT license clean)

Paolo Bonzini paolo.bonzini at gmail.com
Mon Jun 29 22:09:11 UTC 2009


On 06/29/2009 11:08 PM, Eliot Miranda wrote:
>
> On reading this my first question us "what should at: do?".  Have you
> thought this through?  Does at: have to search for TAG marks and skip
> over them, or is the problem punted up to the client?

Tags are zero-width Unicode characters just like the byte-order mark 
U+FEFF.  Note that the tag uses a completely different set of characters 
than the normal Latin alphabet.  Similar to how in UTF-8/UTF-16 it is 
possible to find in O(1) time the beginning of a character, in this RFC 
it is always clear if a character is part of a tag or not.

Paolo



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