SimpleLogic

A ruby gem that parses and evaluates simple boolean statements specified as a string. Useful for evaluating user supplied business rules in your application without using ruby's eval().

Build Status

Installation

Add this line to your application's Gemfile:

gem 'simple_logic'

And then execute:

$ bundle

Or install it yourself as:

$ gem install simple_logic

Usage

context = { hungry: true, fridge_empty: true, restaurant_nearby: true}
in_luck = SimpleLogic.eval("hungry && !fridge_empty || restaurant_nearby", context)
# => true

Contributing

  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create new Pull Request