Hi, all--
I have just written a 'string-case' macro--it is supposed to behave just
like case, except that it uses string=? in place of eqv? as its equality
predicate. But in the course of writing test cases, I have encountered a
surprise: the Chicken version of case appears to be non-compliant with R5RS.
The spec says
Syntax: <Key> may be any expression. Each <clause> should have the
form
((<datum1> ...) <expression1> <expression2> ...),
But the syntax implemented in Chicken appears to be
(<datum> <expression1> <expression2> ...)
E.g.:
csi> (define foo 'a)
csi> (case foo
---> (('a) 1)
---> (else 2))
2
csi> (case foo
---> ('a 1)
---> (else 2))
1
Or have I misunderstood something?
--
Matt Gushee
: Bantam - lightweight file manager : matt.gushee.net/software/bantam/ :
: RASCL's A Simple Configuration Language : matt.gushee.net/rascl/ :
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