This is a collection of old Ruby code code written by Alex Dowad, which might be interesting or useful to some people.

ALL code in this repository is free for anybody to copy, modify, and use in any program, without attribution to the author (i.e. me). Enjoy! But make sure to test the code yourself if you intend to use it in production.

Overview:

/directed_graph.rb        -- a general-purpose directed graph manipulation library

/ruby-core                -- general-purpose Ruby utilities, such as extensions to core classes
/ruby-core/collections.rb -- extensions to Enumerable, Array, and Hash
/ruby-core/kernel.rb      -- generally useful functions which don't have an obvious "home"
                             so I put them in Kernel so they will be available everywhere

/ruby-threads             -- utilities for Ruby multithreading
/ruby-threads/threads.rb  -- custom extensions to Thread, Queue
                             also a "synchronized wrapper" for any Ruby object which wraps all methods in Mutex#synchronized
                             AND a general-purpose map-reduce implementation
/ruby-threads/countdown_latch.rb -- various general-purpose synchronizers for threaded code
/ruby-threads/cyclic_barrier.rb
/ruby-threads/semaphore.rb
/ruby-threads/read_write_lock.rb -- this one is especially useful

/chinese.rb               -- utilities for working with Chinese text
                             ALSO contains command-line driver to count word/character frequency for a Chinese text,
                             add Pinyin transcription next to Chinese words, or convert between traditional/simplified
                             characters
                             must be accompanied by Chinese dictionary file "cedict.utf8"

/rubber.rb                -- several interesting examples of Ruby metaprogramming