Convert a string numeric array to numeri array

alone.rb

module StringToArrayConverter
  NUMERIC_ARRAY_REGEX = /^\[([\d,\s\.\-\+]+)\]$/

  def to_numeric_array
    m = NUMERIC_ARRAY_REGEX.match(self.strip)
    m[1].split(",").map{|e| e.include?(".") ? e.to_f : e.to_i}
  end

  def is_a_numeric_array?
    !NUMERIC_ARRAY_REGEX.match(self.strip).nil?
  end
end

class String
  include StringToArrayConverter
end

# Use:
"[1, 2.345,  3   ,-5,+3,0.0] ".to_numeric_array # => [1, 2.345, 3, -5, 3, 0.0]