class virtual augment_raw_in_channel :object..end
compl_in_channel by calling
the methods of raw_in_channel. There is no additional buffering.
The performance of the method input_line is very bad (consider
to override it, e.g. by enhanced_input_line as defined below).method virtual input : string -> int -> int -> intraw_in_channelmethod virtual close_in : unit -> unitraw_in_channelmethod virtual pos_in : intraw_in_channel