On 09/27/2011 08:15 PM, Jon Stenerson wrote:
I'm trying to understand what this is supposed to do:
(define (parse stx)
(syntax-case stx ()
[(_ p ...) #'(p ...)]))
(display (parse #'(1 2 3)))
If I run this in DrRacket with first line #lang racket
I get a syntax object containing a list: #<syntax:7:17 (2 3)>
If I run with #!r6rs instead I get a list of syntax objects:
{ #<syntax:9:21 2> #<syntax:9:23 3> }
Is this a legitimate difference between two languages? Or is one of them
right and the other wrong?
Both languages are behaving according to their specifications, so I
suppose you could call that a legitimate difference. I think the Racket
rules about representing syntax are superior to the R6RS rules, though,
so Racket is right and R6RS is somewhat less right.
Ryan
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