From: Tim Hunter <rmagick@...>
Date: 2009-07-22T00:11:50+09:00
Subject: Re: *%w[..lib]

William Djingga wrote:
> Hi All,
> 
> $:.unshift File.join(File.dirname(__FILE__), *%w[.. lib])
> 
> what does *%w mean in the line above?

%w[.. lib] creates an array of words. The result is ["..", "lib"]. The 
asterisk causes the array elements to be passed as separate arguments to 
File.dirname. It's exactly equivalent to this (except it's harder to 
understand):

$:.unshift File.join(File.dirname(__FILE__), "..", "lib")

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