Ruby Case-Insentive Strings

ci_string.rb

################################################## CIString (Case-Insensitive String) - HELPFUL FOR STRING COMPARISONS WHERE WE NEED TO IGNORE CASE ERRORS
class CIString < String
  def initialize(*args)
    if args[0].nil?
      args[0] = ""
    end
    super
  end
  def ==(val)
    val.is_a?(String) ? self.casecmp?(val) : false
  end
  def ===(val)
    val.is_a?(String) ? self.casecmp?(val) : false
  end
end
String.class_eval do
  prepend(CIStringFix = Module.new do
    def ==(val)
      val.is_a?(CIString) ? self.casecmp?(val) : super
    end
    def ===(val)
      val.is_a?(CIString) ? self.casecmp?(val) : super
    end
  end)
end