From: Ilias Lazaridis <ilias@...>
Date: 2005-03-22T06:29:52+09:00
Subject: Re: [EVALUATION] - E03 - jamLang Evaluation Case Applied to Ruby

Martin Ankerl wrote:
>>> You can think of the whole file as "main". The code will be read from
>>> top to bottom.
> [...]
> 
>> This means that ruby is _not_ strictly Object Oriented.
> 
> Ruby is not strictly OO, but not for the reason you think. Here is a 
> nice explenation why:
> http://www.rubycentral.com/book/classes.html#S3

impressive.

>> And this means that I can drop the "if __FILE__ [...]" construct.
> 
> __FILE__ is the name of the current source file.

ok, here i guessed right (intuitive naming).

> $0 is the name of the top-level ruby program being executed.

here i thought that "$0" represents "NULL".

$0 => main-file (or entry-file, or top-level file, or top-level program)

> So this construct just checks if this the source file is the file that 
> is executed directly with e.g. 'ruby talker.rb', and only if this is the 
> case, the codeblock will be executed.

Ok, now it's clear.

> martinus

..

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