From: Gennady <gfb@...>
Date: 2004-06-11T01:49:29+09:00
Subject: String#scan strangeness

Hi there,

[linux.gfbs:281]gfb> ruby -v
ruby 1.6.8 (2003-10-15) [i686-linux]
[linux.gfbs:282]gfb> irb
irb(main):001:0> a = "a b c d "
=> "a b c d "
irb(main):002:0> a.scan %r{((\S+\s+){2,2})}
=> [["a b ", "b "], ["c d ", "d "]]
irb(main):003:0>

I am just wondering why String#scan "looses" a group in every match. I 
would expect the following result:

=> [["a b ", "a ", "b "], ["c d ", "c ", "d "]]

or even

=> [["a b ", ["a ", "b "]], ["c d ", ["c ", "d "]]]

Where am I wrong in my expectations?

Thank you,
Gennady.

P.S.
   It works the same way in Ruby 1.8.0 as well.