This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.

read 

        # Dir.read

(from ruby core)
---
    dir.read -> string or nil

---

Reads the next entry from *dir* and returns it as a string. Returns
`nil` at the end of the stream.

    d = Dir.new("testdir")
    d.read   #=> "."
    d.read   #=> ".."
    d.read   #=> "config.h"

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.