From: Dirk Traulsen <dirk.traulsen@...>
Date: 2007-10-15T01:53:23+09:00
Subject: Re: top 10 last played mp3's

Am 14 Oct 2007 um 23:55 hat Phrogz geschrieben:

> Dir['/share/music/**/*.mp3', '/share/music/*.mp3']

The above has a flaw.
Dir['/share/music/**/*.mp3'] already includes the *.mp3 in 
'/share/music/ itself, so when you add '/share/music/*.mp3' in Dir.glob 
you add the *.mp3 from that directory again with the result that you 
have them two times in your array:

aaa/
aaa/x.mp3
aaa/bbb/
aaa/bbb/y.mp3
aaa/bbb/ccc
aaa/bbb/ccc/z.mp3

p Dir['aaa/**/*.mp3'].sort
    #=> ["aaa/x.mp3", "aaa/bbb/y.mp3", "aaa/bbb/ccc/z.mp3"]

p Dir['aaa/**/*.mp3','aaa/*.mp3'].sort
    #=> ["aaa/x.mp3", "aaa/x.mp3", 
         "aaa/bbb/y.imp3", "aaa/bbb/ccc/z.mp3"]


Dirk Traulsen