From: "Hal E. Fulton" <hal9000@...>
Date: 2002-06-23T05:00:51+09:00
Subject: Re: What do you think of this idiom?

----- Original Message ----- 
From: "David Alan Black" <dblack@candle.superlink.net>
To: "ruby-talk ML" <ruby-talk@ruby-lang.org>
Sent: Saturday, June 22, 2002 3:29 AM
Subject: Re: What do you think of this idiom?


> I think it isn't doing what you think :-)
> 
>   $ ruby getdir.rb  # with "Root = './'" added
>   Dir = non-existent
>   No such file or directory - "./non-existent"
> 
> Note that it's not using your error message, because the "if not"
> branch never happens: the stat on a bad directory name raises an
> exception of its own.  You could use test(?d,dir) to get a true/false
> test.

Right! Hadn't noticed that. That's why I post 
these things.
 
[snip]

>   s = getstr("Dir = ", "No such directory") {|dir| test(?d,dir)}

Ah, that's not bad. Good idea.


Hal Fulton