[plt-scheme] How do I convert (values ...) to something I can do something with?

From: Lee Spector (lspector at hampshire.edu)
Date: Fri Mar 12 11:33:03 EST 2010

FYI Clojure uses [] for vector literals and {} for maps, and there are a variety of reader macro prefixes to (), [] and {} that do other things. I've never liked the way that non-() brackets have been used in other Lisps, but the Clojure conventions are making a lot of sense to me...

On Mar 12, 2010, at 11:06 AM, Hugh Myers wrote:

> Mu-Lisp used the ']' as a close all--- great for a beginner, less
> great for someone trying to debug misplaced ')' internal to over all
> expression ;-)
> --hsm
> On Fri, Mar 12, 2010 at 10:44 AM,  <hendrik at topoi.pooq.com> wrote:
>> On Thu, Mar 11, 2010 at 09:43:31PM -0500, Jim Wise wrote:
>>> Hugh Myers <hsmyers at gmail.com> writes:
>>>> There are Lisp dialects that allow the usage of '{' in addition to
>>>> '('--- probably not Scheme...
>>> Yeah -- R5RS and R6RS reserve '{' and '}' for use of future report
>>> versions.  R6Rs allows use of '[' and ']' in addition to '(' and ')' --
>>> these were explicitly reserved in R5RS.
>> If I recall correctly, the original Scheme compiler (wasn't it called
>> Rabbit?) contained code where '[' and ']' were used to denote 'hunks',
>> which I think were kind of like small arrays used as structures.
>> But maybe that was a relic from the Lisp that Rabbit was written in,
>> rahter than part of Scheme itself.
>> And there have been a number of dialects that used ']' as a kind of
>> superparenthis that closes all open parentheses back to a matching '['
>> or to the start of the s-expression, whichever comes first.  That
>> superficialy resembles what I was doing, but I utterly reject that,
>> becaue it hides parenthesis mismatch instead of making it easier to see.
>> -- hendrik
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Lee Spector, Professor of Computer Science
School of Cognitive Science, Hampshire College
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lspector at hampshire.edu, http://hampshire.edu/lspector/
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