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Re: Question regarding FORMAT with ~:^ within ~:{

>> I have a question regarding the correct behavior of FORMAT.  Please
>> open up your CLtL books to page 406 and tell me what the following
>> construct should return:
>> 	(format nil "~:{~@?~:^...~}" '(("a") ("b")))
Should return "a" for exactly the reason you gave.  Otherwise "To
terminate the entire iteration process, use ~:^." is meaningless.

KCL returns "a".