From: "Peña, Botp" <botp@...>
Date: 2007-11-15T22:16:41+09:00
Subject: Re: Shadowing bug??

From: tho_mica_l [mailto:micathom@gmail.com] 
# x = 1
# (2..3).each {|x|}
# p x
# => 3
# 
# I think this is intended though and AFAIK this behaviour is subject
# to change in 2.0 and maybe has already changed in 1.9.

indeed.
C:\ruby1.9\bin>irb

irb(main):001:0> x = 1
=> 1
irb(main):002:0> (2..3).each {|x|}
=> 2..3
irb(main):003:0> p x
1
=> 1

kind regards -botp