Hash Extensions (Ruby) on pluginGeek

Hashie is a simple collection of useful Hash extensions.http://rdoc.info/projects/intridea/hashie

the ruby container you've always wanted: an ordered string/symbol indifferent hashhttps://github.com/ahoward/map

Git-like hashes and history for Ruby objectshttp://delano.github.com/gibbler

Simple Hash extension to make working with nested hashes (e.g. for configuration) easier and less error-prone.http://github.com/svenfuchs/hashr

Tiny module that allows you to easily adapt from one hash structure to another with a simple declarative DSL.http://ismasan.github.com/hash_mapper/

Facets Hashery Collection of Hash-based classeshttp://rubyworks.github.com/hashery