Class: Rundown::Processors::Frequency

Inherits:
Rundown::Processor show all
Defined in:
lib/rundown/processors/frequency.rb

Constant Summary

Constants inherited from Rundown::Processor

Rundown::Processor::PUNCTUATION

Instance Attribute Summary collapse

Attributes inherited from Rundown::Processor

#text, #words

Instance Method Summary collapse

Methods inherited from Rundown::Processor

#sentences

Constructor Details

#initialize(words, length = 1) ⇒ Frequency

Returns a new instance of Frequency.



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# File 'lib/rundown/processors/frequency.rb', line 6

def initialize(words, length=1)
  super(words)
  @length = length
end

Instance Attribute Details

#length ⇒ Object

Returns the value of attribute length.



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# File 'lib/rundown/processors/frequency.rb', line 4

def length
  @length
end

Instance Method Details

#cleanup_words! ⇒ Object 



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# File 'lib/rundown/processors/frequency.rb', line 11

def cleanup_words!
  @words = words.map {|w| w.gsub(/[^\w]/, '').downcase }.reject {|w| w.strip == ''  }
end

#process ⇒ Object 



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# File 'lib/rundown/processors/frequency.rb', line 15

def process
  cleanup_words!
  frequencies = {}

  words.length.times do
    phrase = words[0..length-1]

    if phrase.join('').length >= 1
      frequencies[phrase] ||= 0
      frequencies[phrase] += 1
    end

    @words = words.rotate
  end

  totals = {}
  frequencies.each do |phrase, freq|
    totals[freq] ||= []
    totals[freq] << phrase
  end

  totals
end