This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# IO.readline (from ruby core) --- ios.readline(sep=$/ [, getline_args]) -> string ios.readline(limit [, getline_args]) -> string ios.readline(sep, limit [, getline_args]) -> string --- Reads a line as with IO#gets, but raises an EOFError on end of file.
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.