rpmohn / panix.com (Ross Mohn) wrote in
<8FFA9C452rpmohnpanixcom / 166.84.0.240>: 

>I know that Hash#- operator is defined (because I use it :-), but I
>can't find anything documenting it in Prog_Ruby. Am I missing it? Is it
>inherited or mixed-in from someplace that I'm missing? 

Oops, I forgot that I had actually defined it myself. Sorry.

(for my purposes, this is what I did, though I see that it is not 
appropriate for all:

class Hash
  def -(other)
    tmp = Hash.new
    self.each { |key, val| tmp[key]=val unless other.has_key?(key) }
    tmp
  end
end

)

-- 
Ross Mohn
rpmohn / panix.com