This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# String.pathmap_replace (from gem rake-13.0.6) --- pathmap_replace(patterns, &block) --- Perform the pathmap replacement operations on the given path. The patterns take the form 'pat1,rep1;pat2,rep2...'. This String extension comes from Rake
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.