https://github.com/maxim/ternary_types

Provides ternary singletons True, False, and Maybe with ==,!,&,|,^ operators implemented according to three-value logic.
https://github.com/maxim/ternary_types

Last synced: 4 days ago
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Provides ternary singletons True, False, and Maybe with ==,!,&,|,^ operators implemented according to three-value logic.

• Host: GitHub
• URL: https://github.com/maxim/ternary_types
• Owner: maxim
• License: mit
• Created: 2014-12-28T09:18:03.000Z (almost 10 years ago)
• Default Branch: main
• Last Pushed: 2023-01-08T18:46:37.000Z (almost 2 years ago)
• Last Synced: 2024-11-07T06:47:51.383Z (6 days ago)
• Language: Ruby
• Size: 9.77 KB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

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README

        
# ternary_types

Use True/False/Maybe singletons to evaluate 3-value logic for such great fun.

## Usage

```irb

require 'ternary_types'

T = TernaryTypes::True.instance

M = TernaryTypes::Maybe.instance

F = TernaryTypes::False.instance

!T # => #

!M # => #

T == F # => #

M == T # => #

M == M # => #

T == T # => #

T & F # => #

M & T # => #

T | F # => #

T ^ T # => #

include TernaryTypes::Coersion

Ternary(true) # => #

Ternary(:foo) # => #

Ternary(false) # => #

Ternary(nil) # => #

Ternary(:maybe) # => #

```

## Installation

Add this line to your application's Gemfile:

```ruby

gem 'ternary_types'

```

And then execute:

    $ bundle

Or install it yourself as:

    $ gem install ternary_types

## Contributing

1. Fork it ( https://github.com/[my-github-username]/ternary_types/fork )

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 a new Pull Request