https://github.com/danini-the-panini/json-lisp-ruby

Execute lisp-like s-expressions written in JSON (Ruby Gem Edition)
https://github.com/danini-the-panini/json-lisp-ruby

Last synced: 15 days ago
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Execute lisp-like s-expressions written in JSON (Ruby Gem Edition)

• Host: GitHub
• URL: https://github.com/danini-the-panini/json-lisp-ruby
• Owner: danini-the-panini
• License: mit
• Created: 2018-02-17T09:24:42.000Z (almost 7 years ago)
• Default Branch: master
• Last Pushed: 2018-02-17T12:03:19.000Z (almost 7 years ago)
• Last Synced: 2024-12-03T01:37:34.535Z (20 days ago)
• Language: Ruby
• Size: 12.7 KB
• Stars: 1
• Watchers: 0
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

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README

        
# JSON::Lisp

Execute lisp-like s-expressions written in JSON.

The aim of JSON-Lisp is to allow for an executable code format that is simple and portable, as well as easy to parse and execute in a controlled, sandboxed environment. This allows it to be stored in a database, sent over an HTTP connection, collected from user input, and executed on either a client or a server's machine.

## Installation

Add this line to your application's Gemfile:

```ruby

gem 'json-lisp'

```

And then execute:

    $ bundle

Or install it yourself as:

    $ gem install json-lisp

## Usage

```ruby

constants = {

  "a" => 5,

  "b" => 7,

  "+" => -> (a, b) { a + b },

  "-" => -> (a, b) { a - b }

}

json_lisp_env = JSON::Lisp::Env.new(constants)

json_lisp_env.evaluate(["+", "a", "b"])           #=> 12

json_lisp_env.evaluate(["-", "a", 3])             #=> 2

json_lisp_env.evaluate(["+", 2, "b"])             #=> 9

json_lisp_env.evaluate(["+", "a", ["-", "b", 2]]) #=> 10

json_lisp_env.evaluate_json('["+", "a", ["-", "b", 2]]') #=> 10

```

## See Also

1. [JSON Lisp for JavaScript](https://github.com/jellymann/json-lisp-js)

## Development

After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake test` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release`, which will create a git tag for the version, push git commits and tags, and push the `.gem` file to [rubygems.org](https://rubygems.org).

## Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/jellymann/json-lisp-ruby.

## License

The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).