Minilisp

Minilisp is a micro Lisp interpreter implemented in Ruby so you can do a lisp sorcery in hacking your ruby projects. :p

Installation

Add this line to your application's Gemfile:

gem 'minilisp'

And then execute:

$ bundle

Or install it yourself as:

$ gem install minilisp

Usage

The LISP interpreter is just a Ruby class that evals expressions in Ruby data structures, like so:

l = Minilisp::Interpreter.new

l.eval [:label, :a, 42]

l.eval :a
#=> 42

l.eval [:eq, 42, :a]
#=> true

l.eval [:quote, [1, 2]]
#=> [1, 2]

l.eval [:car, [:quote, [1, 2]]]
#=> 1

l.eval [:cdr, [:quote, [1, 2]]]
#=> [2]

l.eval [:cons, 1, [:quote, [2,3]]]
#=> [1, 2, 3]

l.eval [:if, [:eq, 1, 2], 42, 43]
#=> 43

l.eval [:atom, [:quote, [1,2]]]
#=> false

l.eval [:label, :second, [:quote, [:lambda, [:x],   [:car, [:cdr, :x]]]]]

l.eval [:second, [:quote, [1, 2, 3]]]
#=> 2

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

Acknowledgement

License

MIT.