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On 09/17/2014 10:45 AM, John Cowan wrote:
Per Bothner scripsit:
For quote/read identity (which is not essential but is desirable, especially if you might have circular lists) read should be allowed to return an immutable list.I see that Kawa does so, but I think it's not conformant to RnRS: the ( ... ) syntax in `read` should return mutable lists.
I added a flag to the Kawa reader, so it returns mutable pairs when called directly by the read procedure, but returns immutable pairs when called by "the parser" (i.e. when reading expressions to be compiled/evaluated). This seems a workable solution: specifically quoted lists get read as immutable pairs. -- --Per Bothner per@xxxxxxxxxxx http://per.bothner.com/