[PATCH] Pathname.to_a

Hi folks,
today I found myself wanting to get the parent directory name of a file, so I 
was looking whether Pathname has an to_a so I could do:

parent_dir = path.to_a[-2]

Since it didn't exist, I've written a small patch against CVS to add this 
simple function, maybe you find it useful :-)

C'ya,
	Marc

-- 
Marc Haisenko
Comdasys AG

Rüdesheimer Straße 7
D-80686 München
Tel:   +49 (0)89 - 548 43 33 21
Fax:   +49 (0)89 - 548 43 33 29
e-mail: [e-mail]
http://www.comdasys.com

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--- pathname.rb.orig	2006-07-08 10:56:27.000000000 +0200
+++ pathname.rb	2006-08-09 14:10:54.000000000 +0200
@@ -242,6 +242,13 @@
     @path.dup
   end
 
+  # Return the path as an Array.
+  def to_a
+    a = @path.split SEPARATOR_PAT
+    a.shift if a[0].size == 0
+    a
+  end
+
   # to_path is implemented so Pathname objects are usable with File.open, etc.
   alias_method TO_PATH, :to_s
 

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