# encoding: utf-8

module OS

  class << self
    def windows?
      (/cygwin|mswin|mingw|bccwin|wince|emx/ =~ RUBY_PLATFORM) != nil
    end

    def mac?
     (/darwin/ =~ RUBY_PLATFORM) != nil
    end

    def unix?
      !OS.windows?
    end

    def linux?
      OS.unix? && !OS.mac?
    end
  end
end