From: Tanaka Akira <akr@...>
Date: 2009-02-14T17:45:26+09:00
Subject: [ruby-core:22070] Re: Dir.glob and duplicates?

In article <49967EC7.6080105@sun.com>,
  Charles Oliver Nutter <charles.nutter@sun.com> writes:

> In the JRuby dupe case it's 'a/**/b/**/e'.

It has no braces.  So the result should not have dupes.

> Either way though, since one would have to filter out dupes when 
> globbing, specifying that some globs may produce dupes seems like 
> over-specifying.

The usual explanation is that Dir.glob emurates shells.

However this doesn't explain why Dir.glob("{foo,bar}")
returns [] when echo {foo,bar} prints "foo bar".
-- 
Tanaka Akira