From: Gavin Sinclair <gsinclair@...>
Date: 2002-12-08T14:31:33+09:00
Subject: Re: Ruminations...


From: "Ted" <ted@datacomm.com>


> I was looking at "Ruby in a Nutshell" on Amazon's site and came across this
in the Introduction on page 3:
>
> begin
>   f = open(path)
> rescue
>   puts "#{path} does not exist."
>   exit 1
> end
>
> Concerns:
>   * What if the file exists, but the open uncovers some other condition.  The
problem has been misdiagnosed;

Correct, it should rescue a specific error, like Errno::ENOENT.

>   * The "routine" has more than one exit.  This violates the "one entry, one
exit" rule of structured programming.

The snippet is out of context, so your conclusion is unjustifiably harsh :)

Gavin