Class: ColoringBackend

Inherits:
Backend show all
Defined in:
lib/backends/coloring_backend.rb

Overview

This backend is just a dummy that isn’t actually useful for anything other than testing purposes.

Constant Summary collapse

COLORS = 
['white', 'red', 'green', 'blue', 'black']

Class Attribute Summary collapse

Class Method Summary collapse

Methods inherited from Backend

with_no_output, write_layers

Class Attribute Details

.layers ⇒ Object (readonly)

Returns the value of attribute layers.



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# File 'lib/backends/coloring_backend.rb', line 9

def layers
  @layers
end

Class Method Details

.run(file) ⇒ Object 



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# File 'lib/backends/coloring_backend.rb', line 11

def run(file)
  @layers = {}
  text = File.read(file)

  COLORS.each do |color|
    offset = 0
    while occurance = text.index(color, offset) do
      (@layers[file] ||= []) << Layer.new((occurance ... occurance + color.length),
                                          color, "Found a #{color}", self)
      offset += (occurance + 1)
    end
  end
  
  write_layers
end