Class: Wikipedia::VandalismDetection::Features::CharacterSequence

Inherits:
Base
  • Object
show all
Defined in:
lib/wikipedia/vandalism_detection/features/character_sequence.rb

Overview

This feature computes the length of the longest sequence of the same character in the inserted text.

Instance Method Summary collapse

Methods inherited from Base

#count

Instance Method Details

#calculate(edit) ⇒ Object 



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# File 'lib/wikipedia/vandalism_detection/features/character_sequence.rb', line 10

def calculate(edit)
  super

  sequence_hash = edit.inserted_text.scan(/((.)\2*)/).group_by{ |s, c| s.length }
  sequence_hash.empty? ? 0 : sequence_hash.max.first
end