# File lib/zip/ioextras.rb, line 37
    def initialize
      super
      @lineno = 0
      @outputBuffer = ""
    end

# File lib/zip/ioextras.rb, line 108
    def each_line(aSepString = $/)
      while true
        yield readline(aSepString)
      end
    rescue EOFError
    end

# File lib/zip/ioextras.rb, line 96
    def flush
      retVal=@outputBuffer
      @outputBuffer=""
      return retVal
    end

# File lib/zip/ioextras.rb, line 79
    def gets(aSepString=$/)
      @lineno = @lineno.next
      return read if aSepString == nil
      aSepString="#{$/}#{$/}" if aSepString == ""
      
      bufferIndex=0
      while ((matchIndex = @outputBuffer.index(aSepString, bufferIndex)) == nil)
        bufferIndex=@outputBuffer.length
        if input_finished?
          return @outputBuffer.empty? ? nil : flush 
        end
        @outputBuffer << produce_input
      end
      sepIndex=matchIndex + aSepString.length
      return @outputBuffer.slice!(0...sepIndex)
    end

# File lib/zip/ioextras.rb, line 45
    def read(numberOfBytes = nil, buf = nil)
      tbuf = nil

      if @outputBuffer.length > 0
        if numberOfBytes <= @outputBuffer.length
          tbuf = @outputBuffer.slice!(0, numberOfBytes)
        else
          numberOfBytes -= @outputBuffer.length if (numberOfBytes)
          rbuf = sysread(numberOfBytes, buf)
          tbuf = @outputBuffer
          tbuf << rbuf if (rbuf)
          @outputBuffer = ""
        end
      else
        tbuf = sysread(numberOfBytes, buf)
      end

      return nil unless (tbuf)

      if buf
        buf.replace(tbuf)
      else
        buf = tbuf
      end

      buf
    end

# File lib/zip/ioextras.rb, line 102
    def readline(aSepString = $/)
      retVal = gets(aSepString)
      raise EOFError if retVal == nil
      return retVal
    end

# File lib/zip/ioextras.rb, line 73
    def readlines(aSepString = $/)
      retVal = []
      each_line(aSepString) { |line| retVal << line }
      return retVal
    end