From: Chad Perrin <perrin@...>
Date: 2007-04-16T02:48:59+09:00
Subject: Re: Ruby Truth Table Generator

On Mon, Apr 16, 2007 at 01:21:05AM +0900, Stephen Duncan wrote:
> I was working on some code (in Java), which had a somewhat complicated
> nested pair of if statements.  It occurred to me that I could try to
> do some boolean algebra and see if I could simplify the expression.
> Since I hadn't done that in probably 7+ years, I screwed up; a lot.  I
> find myself needing to generate the truth tables (
> http://en.wikipedia.org/wiki/Truth_table ) to verify my work fairly
> frequently.  So I developed a Ruby program to generate truth tables
> for me: http://jrduncans.googlecode.com/svn/trunk/truthtable  The core
> code is here: 
> http://jrduncans.googlecode.com/svn/trunk/truthtable/lib/truthtable.rb
> 
> I'd like to say I just whipped this up, but I'm still a Ruby-newbie,
> so this took me a few days.  I'd love to get some feedback on the
> code.  I'd also like to know if anybody finds it actually useful for
> them, and if so how I should go about making it easier to get/find.
> If you run 'rake install_gem', you'll get an executable "truthtable"
> that allows you to pass in the expression on the command-line to
> generate the truth table.
> 
> Thanks in advance to anyone who takes the time to check it out,

Excellent!  I've been thinking of using Perl or Ruby to write a truth
table generator, and just haven't gotten around to it.  I'll definitely
have a look at yours.  Thank you!

-- 
CCD CopyWrite Chad Perrin [ http://ccd.apotheon.org ]
"It's just incredible that a trillion-synapse computer could actually
spend Saturday afternoon watching a football game." - Marvin Minsky