Module: Q::Monomial2

Defined in:
lib/q/parser.rb

Instance Method Summary collapse

Instance Method Details

#eval(scope) ⇒ Object 



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# File 'lib/q/parser.rb', line 799

def eval scope
  if has_feet?
    feet = tail.elements.first.feet
    return operator.apply(scope, head, feet)
  end

  scope['_'] = head.eval(scope)
end

#has_feet? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/q/parser.rb', line 808

def has_feet?
  not tail.nil? and not tail.elements.first.nil? and not tail.elements.first.feet.nil?
end

#operator ⇒ Object 



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# File 'lib/q/parser.rb', line 812

def operator
  return nil if not has_feet?

  tail.elements.first.operator
end