Class: RubyLabs::RandomArray

Inherits:
Array
  • Object
show all
Defined in:
lib/rubylabs.rb

Overview

RandomArray

Similar to TestArray, but draws random words from a file.

Constant Summary collapse

@@sources = 
{
  :cars => "#{data}/cars.txt",
  :colors => "#{data}/colors.txt",
  :fruit => "#{data}/fruit.txt",
  :words => "#{data}/wordlist.txt",
}

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(src, n) ⇒ RandomArray

Returns a new instance of RandomArray.



220
221
222
223
224
225
226
227
228
229
230
231
 
# File 'lib/rubylabs.rb', line 220

def initialize(src, n)
	fn = @@sources[src] or raise "RandomArray: undefined array type: #{src}"
	words = File.open(fn).readlines
	a = Hash.new
	while a.size < n
	  w = words[rand(words.length)].chomp
		a[w] = 1		
	end
	a.keys.each do |w|
	  self << w
	end
end

Class Method Details

.sources ⇒ Object 



233
234
235
 
# File 'lib/rubylabs.rb', line 233

def RandomArray.sources
 return @@sources.keys.sort { |a,b| a.to_s <=> b.to_s }
end