From: Hans Mackowiak <lists@...>
Date: 2013-02-22T04:13:29+09:00
Subject: Re: Difference between pretty_print_cycle and pretty_print.

what the heck is the problem with "already printed" ??

require "pp"
class A
attr_accessor :data
end

o=A.new
o.data = o

pp o # => #<A:0x00000001e0e178 @data=#<A:0x00000001e0e178 ...>>

a = []
a << a
pp a #=> [[...]]

h = {}
h[h]=h
pp h #=> {{...}=>{...}}


pretty_print_cycle is for making the ... variants

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