From: Joel VanderWerf <vjoel@...>
Date: 2008-08-29T06:26:43+09:00
Subject: Re: Subtle bug with catch/throw. Am I missing something?

John Pritchard-williams wrote:
> Patrick Li wrote:
>> Thanks for your responses.
>>
>> I think I understand now. I was just using the catch as a lazy way to 
>> break out of the loop. I can just use a loop flag instead then.
>>
>> I still don't know why the "puts" statement avoids the error. The "do" 
>> after the "while" doesn't help either.
> 
> Patrick,
> 
> Again total guesswork , but based on the other posts from people who 
> actually know what they are talking about... - sounds like the symbol 
> ':exit' is possibly out-of-scope by the time the 'throw' is executed.

Symbols are literal values, so they are not affected by scope.

-- 
       vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407