From: ts <decoux@...>
Date: 2002-11-05T22:14:54+09:00
Subject: Re: Newbie Problem with Shell#transact

>>>>> "X" == Xandy Johnson <xandy@fgm.com> writes:

X> "Why?"

 #transact use #instance_eval

 With

X>     sh.transact do
X>          results = jar("tf", jarfile) | grepcmd(@pattern)

 @pattern is interpreted as an instance variable of `sh' and not an
 instance variable of JarGrepper object, i.e.

pigeon% ruby
class A; attr_accessor :a; end
a = A.new
a.a = 12
@a = 24
a.instance_eval do
   p @a
end
^D
12
pigeon% 


Guy Decoux