naive_mather

Calculates the result of a basic math equation stored in a String.

NaiveMather.calculate("3 + 4 * (3 + 4)")
 => 31

Only handles +, -, *, /, and parentheses.

Installation

1. Add the dependency to your shard.yml:

dependencies:
  naive_mather:
    github: blazerw/naive_mather

2. Run shards install

Usage

require "naive_mather"

Just pass your equation String to NaiveMather.calculate()

Development

Follow Crystal's guidelines: https://crystal-lang.org/reference/guides/writing_shards.html and realize that Spec2 is used for testing, specifically this fork

Contributing

1. Fork it (https://github.com/blazerw/naive_mather/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

Contributors

• Randy Wilson - creator and maintainer
• Lukasz Wrobel - Ruby version, the "real" creator