Alan Manuel Gloria:
> 4. I can't accept #4 because I'm not assured that it is easy to
> implement given a one-character lookahead implementation (Scheme).  I
> think that it is a significant implementation burden, in order to
> support what I consider to be minor advantages.

I just posted an updated reader with that implementation, it turned out to be 
really easy to implement with unread-char.  While unread-char isn't part of 
R5RS, it's available in at least two Schemes, and we could create little 
portability layer to implement unread-char for other Schemes.

So since it's easy to implement, can you accept #4 (period + space or tab as 
indentation)?

--- David A. Wheeler

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