module Aio::Base::Toolkit::String
	class << self

		# 终极解决方案
    # 遇到了 invalid byte sequence in UTF-8 (ArgumentError) 问题
    # 解决办法参考 https://stackoverflow.com/questions/29877310/invalid-byte-sequence-in-utf-8-argumenterror
		def safe(str)
			case Aio::Base::Toolkit::OS.os_family
			when "unix"
				if ! str.valid_encoding?
					str = str.encode("UTF-16be", :invalid=>:replace, :replace=>"?").encode('UTF-8')
				end 
			when "windows"
				#str = str.force_encoding("UTF-8")
				str = str.encode("UTF-16be", :invalid=>:replace, :replace=>"?").encode('UTF-8')
			end
      return str 
		end 

		# 改写成安全的Windows书写方式
		def safe_path(path)
			if Aio::Base::Toolkit::OS.windows?
				path.gsub!("/", "\\")
			end
		end
	end
end