class Mime::Mimes

def <<(type)
  @mimes << type
  @symbols << type.to_sym
end

def delete_if
  @mimes.delete_if do |x|
    if yield x
      @symbols.delete(x.to_sym)
      true
    end
  end
end

def each(&block)
  @mimes.each(&block)
end

def initialize
  @mimes = []
  @symbols = []
end