# File lib/CharSetGroupProber.rb, line 62
        def feed(aBuf)
            for prober in @_mProbers
                unless prober then next end
                unless prober.active then next end
                st = prober.feed(aBuf)
                unless st then next end
                if st == :FoundIt
                    @_mBestGuessProber = prober
                    return get_state()                
                elsif st == :NotMe
                    prober.active = false
                    @_mActiveNum -= 1
                    if @_mActiveNum <= 0
                        @_mState = :NotMe
                        return get_state()
                    end                            
                end
            end
            return get_state()
        end