From: Jun Young <juneng603@...>
Date: 2010-02-06T05:05:34+09:00
Subject: Re: weird action of 'nokogiri' library on Snow Leopard

On 2¿ù6ÀÏ, ¿ÀÀü4½Ã25ºÐ, Ben Bleything <b...@bleything.net> wrote:
> 2010/2/5 Jun Young <juneng...@gmail.com>:
>
> > it makes my script working. but, I am still wondering why it didn't
> > work.
>
> > I installed the library by using gems. why I have to load 'rubygems'
> > library also before calling 'nokogiri'??
>
> Because that is how it works :)
>
> RubyGems is a packaging system.  It works by manipulating Ruby's load
> path to include the lib directories of any gems you have installed...
> but to make that work, you must include RubyGems in your script.
> Starting with Ruby 1.9, RubyGems is built-in to Ruby, so you won't
> need to do that any more, but while you're using Ruby 1.8, you'll need
> to require rubygems whenever you want to use a gem.
>
> As an alternative, you can set the environment variable RUBYOPT to 'rubygems':
>
> [11:24:29] ben@folio (master)
> ~ $ cat d.rb
> require 'nokogiri'
> puts "nokogiri loaded successfully"
>
> [11:24:34] ben@folio (master)
> ~ $ ruby d.rb
> d.rb:1:in `require': no such file to load -- nokogiri (LoadError)
>   from d.rb:1
>
> [11:24:36] ben@folio (master)
> ~ $ export RUBYOPT="rubygems"
>
> [11:24:42] ben@folio (master)
> ~ $ ruby d.rb
> nokogiri loaded successfully

you make me clear, ben.
thanks :)