Ah, didn't even think about the REPL causing trouble here.

Thanks.

On Sunday, April 13, 2014 5:30:09 PM UTC+2, squeegee wrote:
>
>
> On Apr 13, 2014, at 8:31 AM, Thomas Heller <th.h...@gmail.com<javascript:>> 
> wrote:
>
> […] confusing error messages.
>
> user=> (pr-str #time/local-datetime [2014 4 1 0 0 2 99999999999])
>
> […]
>
> RuntimeException Unmatched delimiter: ) 
>  clojure.lang.Util.runtimeException (Util.java:221)
>
>
> Using default #inst reader gives the same behavior.
>
> This is an artifact of how the repl currently works. Its input is a stream 
> of characters to which it applies the read, eval, and print operations in a 
> loop. There is prompt-handling code in the repl that makes it feel “turn” 
> oriented in most cases, but this case isn’t handled. It does not currently 
> implement “on exception in read, flush the rest of the pending user input 
> and re-prompt”.
>
> Here’s an example with a vanilla clojure 1.6.0 (java -jar <the clojure 
> 1.6.0.jar>) that may clarify what’s going on:
>
> user=> (println 1 2 3 #inst "4" 5 6 7 8 9)
> RuntimeException Unrecognized date/time syntax: 4 
>  clojure.instant/fn--6236/fn--6237 (instant.clj:118)
> 5
> 6
> 7
> 8
> 9
> RuntimeException Unmatched delimiter: ) 
>  clojure.lang.Util.runtimeException (Util.java:221)
>
> The start of the list "(println 1 2 3” reads fine, then the #inst read 
> throws an exception. After the exception, the repl starts working on the 
> remainder of the input characters as if it were fresh user input. It sees 
> integers and prints them. When it hits “)”, there’s no corresponding “(“ 
> pending, so it throws again.
>
> —Steve
>
>

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