code: protected void updateLastCRLFInfo(int index, int pos, boolean isCR) {
          this.lastCRLFBufferIndex = index;
          this.lastCRLFPosition = pos;
          this.lastCRLFisCR = isCR;
      }
docs: Set the relevant information for the CRLF position information from the
  parsing code.
  
  @param index
  @param pos
  @param isCR