Lightweight Ruby Interface Output Engine

Question

I have a great Ruby application that just screams about adding an output mechanism; I don’t need a lot of functionality, I’m not afraid to integrate C libraries, and I am empty in my Googling.

There seem to be a lot of rules in Python and the JVM. while I would rather use Python, I am not rewriting the whole damn application to add an output mechanism, so I would really like to see if such a thing exists.

Does anyone have any ideas?

Answer 1

Here are some pointers I found on Google. I added the last action after certain gems to indicate if they were saved and sorted by that date.

• See this question here at stackoverflow.com: Ruby and Rules Engines
• ruleby (July 26, 2011)
• unruly (May 13, 2011)
• rdfs (June 14, 2010)
• ruby-rules (March 30, 2007)
• khammurabi (August 4, 2005)
• SIE (February 4, 2002)
• treetop (irrelevant, is a parser generator)

A lot of options, maybe you like something?

Answer 2

Adding a new answer to the old question:

The wongi-engine is currently the best (only?) choice for the Ruby rule engine. It is based on the Rete algorithm and has some of the following github information.

All parameters set by rdvdijk above are either no longer supported, or are completely dead and gone.

As an alternative to Ruby Quiz, there is an extremely lightweight output engine, fully written in Ruby using a directed graph.