From: Florian Gross <flgr@...>
Date: 2004-11-26T04:47:57+09:00
Subject: Re: [Q] Catching exceptions at top level

Laurent Julliard wrote:

> I have sort of a trivial question here that I'm afraid is so simple that 
> I could not find the answer :-(
> 
> I'd like to be able to catch all unrescued exceptions raised in a Ruby 
> script in the END block that is executed last before the script 
> terminates. The goal is to intercept the the exception raised and 
> process the exception message and stack trace before it is printed

I think you can just edit the object that is in $!. If you want a 
solution without using perlish variables wrap the whole application in a 
rescue clause like this:

begin
   code
   more code
   and so on ...
rescue Exception => error
   do something with error
   raise # reraise the exception
end