From: Brian Adkins <lojicdotcom@...>
Date: 2009-02-26T03:00:20+09:00
Subject: Re: Using "rescue" inline

I�aki Baz Castillo <ibc@aliax.net> writes:

> Hi, is it correct the following "rescue" usage?
>
> myvar = 1  # Fixnum
> othervar = myvar.downcase rescue myvar
> => 1
>
> It seems to work, but is it really correct? Thanks.

Naturally, "correctness" depends on what you're trying to
accomplish. That is one valid use of rescue as a statement modifier
which will assign the value of myvar.downcase to othervar unless the
downcase method raises an exception, in which case it will assign
myvar instead. You can also use more than one rescue as in:

x = foo(y) rescue bar(y) rescue baz(y) rescue nil

-- 
Brian Adkins
http://lojic.com/