[racket] Racketrivia: Using ' as an identifier suffix

Why isn’t x’ either a reader error or an unfinished expression (like an unclosed paren where it allows a multi-line expression)?

I notice DrRacket treats it the 2nd way (which makes perfect sense to me) but the command-line repl and (read-eval-print-loop) both do the weird thing where it evaluates the x and saves the quote for the next expression.  

Is there a reason that they don’t all do what DrRacket does?



On Jan 8, 2015, at 4:32 PM, Robby Findler <robby at eecs.northwestern.edu> wrote:

> Clearly proud. That's a helluva sequence. I had to scratch my head
> multiple times before replying.
> 
> Robby
> 
> 
> On Thu, Jan 8, 2015 at 3:22 PM, Greg Hendershott
> <greghendershott at gmail.com> wrote:
>>> You are being so terribly tricked by the reader here.
>> 
>> Thanks for the explanation! It all makes sense now.
>> 
>> I'm not sure whether to be chagrined or perversely proud that I
>> managed to stumble onto this sequence. :)
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