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

open 

        # Pathname.open

(from ruby core)
---
    pathname.open()
    pathname.open(mode="r" [, opt])                        -> file
    pathname.open([mode [, perm]] [, opt])                 -> file
    pathname.open(mode="r" [, opt]) {|file| block }        -> obj
    pathname.open([mode [, perm]] [, opt]) {|file| block } -> obj

---

Opens the file for reading or writing.

See File.open.

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.