Make consistent hashcodes from flat Hashes, regardless of key ordering. Useful for hashing rows in a table.

Hash based directed and undirected graph implementations for Ruby

Hashie2 + ActiveModel 3, offering declared properties, validations, JSON serialization/deserialization

Make hash-based object initialization easy! Provides hash_make method that can consider parameter name, type, default value, validation, and requiredd/not, according to the specification provided. Also, by default assigns by default to instance variable of same name as parameter.

HashMan takes any number (or uuid) and converts it to a unique hash. Includes methods on your class to access and reverse hash

Gem for acsess to api HashNest

A little lib which maps original keys to the new ones and more

Implements methods for Hash class for getting weighted random samples with and without replacement, as well as regular random samples

A simple Hash to JSON serializer with some helpers to improve JSON model columns.

A Ruby DSL and parser for converting hashes into trees of data objects.

Command line app that produces the MD5 hash of all files in a set of folders

HashTML is a gem for parsing HTML documents to Ruby Hash-like objects.

Ruby library to interact with in-memory hash database collections. Offers very little technical dependencies. In order to develop or run the tests for your application you just need ruby installed, run bundle install and you're good to go. No need to install and start your database, migrate, etc.

has_metadata lets you move non-indexed and weighty columns off of your big tables by creating a separate metadata table to store all this extra information. Works with Ruby 1.9. and Rails 3.0.

Reduce your table width and migration overhead by moving non-indexed columns to a separate metadata column.

Hastur API client gem

HaTeMiLe (HTML Accessible) is a open source library developed to improve accessibility converting a HTML code in a new HTML code more accessible, its features is based in WCAG 2.0 document, eMAG 3.1 document and some features of Job Access With Speech (JAWS), Opera before version 15 and Mozilla Firefox.

The HTTP toolkit

A translation for the string centric hstore extension

Helper for generating guides articles from textile source. Extracted from railties-3.0.0.beta3 project.