Class: AtomicAssessmentsImport::ExamSoft::Extractor::FeedbackDetector

Inherits:
Object
  • Object
show all
Defined in:
lib/atomic_assessments_import/exam_soft/extractor/feedback_detector.rb

Constant Summary collapse

TILDE_PATTERN = 
/~\s*(.+)/m
LABEL_PATTERN = 
/\A\s*(?:Explanation|Rationale):\s*(.+)/im
OPTION_PATTERN = 
/\A\s*\*?[a-oA-O]\s*[.)]/

Instance Method Summary collapse

Constructor Details

#initialize(nodes) ⇒ FeedbackDetector

Returns a new instance of FeedbackDetector.



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# File 'lib/atomic_assessments_import/exam_soft/extractor/feedback_detector.rb', line 11

def initialize(nodes)
  @nodes = nodes
end

Instance Method Details

#detect ⇒ Object 



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# File 'lib/atomic_assessments_import/exam_soft/extractor/feedback_detector.rb', line 15

def detect
  feedback_parts = []
  collecting = false

  @nodes.each do |node|
    text = node.text.strip

    if collecting
      # Stop collecting if we hit an option line
      break if text.match?(OPTION_PATTERN)
      feedback_parts << text unless text.empty?
      next
    end

    match = text.match(TILDE_PATTERN)
    if match
      first_part = match[1].strip
      feedback_parts << first_part unless first_part.empty?
      collecting = true
    end
  end

  return feedback_parts.join(" ").gsub(/\s+/, " ").strip unless feedback_parts.empty?

  @nodes.each do |node|
    text = node.text.strip
    match = text.match(LABEL_PATTERN)
    return match[1].gsub(/\s+/, " ").strip if match
  end

  nil
end