Re: Dredging up patterns

From: Rahul Jain (rjain_at_nyct.net)
Date: 06/02/04 

Date: Wed, 02 Jun 2004 01:22:43 -0400

tayss_temp2@yahoo.com (Tayssir John Gabbour) writes:

> - Patterns seem to cluster at the limits of a language. If I believe
> patterns in other languages are about working around language
> limitations, then I should look at lisp patterns to see where the
> boundaries are drawn.

Hmm... what is the limitation of CL that makes it a pattern and not...
something else... to have sequence operators take start and end keyword
parameters (which are interpreted in a specific way) to restrict the
operation to a specific slice of the sequence?

It's not the fact that array slices can't be passed around as
independent sequence objects, because they can be. Maybe it's the lack
of efficient dynamic-extent (actually allocated on the stack) displaced
arrays? Still, I don't know that I'd always end up using displaced
arrays when I want to limit a sequence operator to a specific portion of
the sequence. 

-- 
Rahul Jain
rjain@nyct.net
Professional Software Developer, Amateur Quantum Mechanicist

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