Project

scoped_hash

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Scoped Hash provides scoped access to hash structure
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 Popularity
Downloads
4,350
Stars
0
Forks
0
Watchers
2
 Releases
Current version
0.1.1
Total releases
2
First release
2016-12-07
Latest release
2016-12-14
 Development
Primary Language
Ruby
Licenses
Average date of last 50 commits
2016-12-11
Reverse Dependencies
0

 Dependencies

Development

bundler
>= 0
minitest
>= 0
rake
>= 0

Runtime

mash
>= 0
 Project Readme

Scoped hash library

It provides scoped view to a hash (mash) data structure. When the requested scope does not exist, it would fall back to the non-scope key.

require 'scoped_hash'
smash = ScopedHash.new( 'tax': { min: 20, max: 40},
    'tax(democratic)': { min: 30, max: 50},
    'tax(republican)': { min: 10, max: 30})

smash.scope('democratic')[:tax][:min] == 30
smash.scope('republican')[:tax][:min] == 10
smash.scope('green')[:tax][:min] == 20

The best practice of this library is to create a YAML configuration file with scope annotation, for example the "config.yaml" could be:

tax:
  min: 20
  max: 40
  max(green): 60
tax(democratic):
  min: 30
  max: 50
tax(republican):
  min: 10
  max: 30

And the scoped access to the configuration could be as following:

require 'yaml'
require 'scoped_hash'

config = ScopedHash.new(YAML.load_file('config.yml'))

config.scope('democratic')[:tax][:min] == 30
config.scope('republican')[:tax][:min] == 10
config.scope('green')[:tax][:min] == 20

config[:tax][:max] == 40
config.scope('green')[:tax][:max] == 60

Installation

Simply use gem to install this library:

gem install scoped_hash