[gem]: https://rubygems.org/gems/transproc
[travis]: https://travis-ci.org/solnic/transproc
[gemnasium]: https://gemnasium.com/solnic/transproc
[codeclimate]: https://codeclimate.com/github/solnic/transproc
[coveralls]: https://coveralls.io/r/solnic/transproc
[inchpages]: http://inch-ci.org/github/solnic/transproc

# Transproc

[![Gem Version](https://badge.fury.io/rb/transproc.svg)][gem]
[![Build Status](https://travis-ci.org/solnic/transproc.svg?branch=master)][travis]
[![Dependency Status](https://gemnasium.com/solnic/transproc.png)][gemnasium]
[![Code Climate](https://codeclimate.com/github/solnic/transproc/badges/gpa.svg)][codeclimate]
[![Test Coverage](https://codeclimate.com/github/solnic/transproc/badges/coverage.svg)][codeclimate]
[![Inline docs](http://inch-ci.org/github/solnic/transproc.svg?branch=master)][inchpages]

Functional transformations for Ruby. It's currently used as one of the data
mapping backends in [Ruby Object Mapper](http://rom-rb.org).

## Installation

Add this line to your application's Gemfile:

```ruby
gem 'transproc'
```

And then execute:

    $ bundle

Or install it yourself as:

    $ gem install transproc

## Usage

``` ruby
require 'transproc/all'

# compose transformation functions
transformation = Transproc(:symbolize_keys) >> Transproc(:map_hash, user_name: :name))

# call the function
transformation['user_name' => 'Jane']
# => {:name=>"Jane"}

# or using a helper (no, it's not a good idea to include it here :))
include Transproc::Composer

transformation = compose do |fns|
  fns << t(:symbolize_keys) << t(:map_hash, user_name: :name)
end

transformation['user_name' => 'Jane']
# => {:name=>"Jane"}
```

## Credits

This project is inspired by the work of following people:

* [Markus Schirp](https://github.com/mbj) and [morpher](https://github.com/mbj/morpher) project
* [Josep M. Bach](https://github.com/txus) and [kleisli](https://github.com/txus/kleisli) project

## Contributing

1. Fork it ( https://github.com/solnic/transproc/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