This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# StringIO.lineno (from ruby core) --- strio.lineno -> integer --- Returns the current line number. The stream must be opened for reading. `lineno` counts the number of times `gets` is called, rather than the number of newlines encountered. The two values will differ if `gets` is called with a separator other than newline. See also the `$.` variable.
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.