From: Christian Kerth <christian.kerth@...>
Date: 2008-11-26T18:19:35+09:00
Subject: Exclude members from YAML conversion?

Hi!

I have the following class:

class user

attr_accessor :userid, :username

def initialize
@userid = ""
@username = ""

@prefix = false
@unprefix = false
end

end

when i convert that with to_yaml, all 4 member variables are translated
into the yaml string. I need to exclude the members @prefix and
@unprefix, they are used just for internal decisions and dosn't need to
be in the yaml string.

how do i do that?
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