This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Addrinfo.canonname (from ruby core) --- addrinfo.canonname => string or nil --- returns the canonical name as a string. nil is returned if no canonical name. The canonical name is set by Addrinfo.getaddrinfo when AI_CANONNAME is specified. list = Addrinfo.getaddrinfo("www.ruby-lang.org", 80, :INET, :STREAM, nil, Socket::AI_CANONNAME) p list[0] #=> #<Addrinfo: 221.186.184.68:80 TCP carbon.ruby-lang.org (www.ruby-lang.org)> p list[0].canonname #=> "carbon.ruby-lang.org"
This is MURDOC! A Ruby documentation browser inspired by Smalltalk-80. It allows you to learn about Ruby by browsing through its class hierarchies, and see any of its methods.