From: "Benjamin J. Tilly" <ben_tilly@...>
Date: 2001-05-02T05:25:45+09:00
Subject: [ruby-talk:14514] Re: How to do it the Ruby-way 1

>===== Original Message From Stefan Matthias Aust <sma@3plus4.de> =====
>On Tue, 1 May 2001 03:55:51 +0900, Dave Thomas
><Dave@PragmaticProgrammer.com> wrote:
>
>>A useful idiom is
>>
>>    @@cache[name] ||= File.open(name).read
>
>Thanks Dave, that's clever...

FYI, in Perl the nickname for that is the Orcish Maneuver for
"or-cache".

There are some Perl books which are very useful for Ruby
simply because so much translates pretty much directly.  In
particular "Effective Perl Programming" has a lot of useful
idioms like the above.

Cheers,
Ben