func main()
	{
		※Brainf*ckのコードは下記のURLに掲載されているものを使用しています。
		Helloworldless Hello world by Mark Byers: 
			http://golf.shinh.org/reveal.rb?Helloworldless+Hello+world/Mark+Byers_1239553451&bf
	}
	do @brainfuck("++++++++[->->+++++>>>+>+>+>++>>++[+++<+]<]>->.-[->-[>]<<[<+]->-]>+>--.->---..>+++>.>>>++++[.<]")
end func

func brainfuck(src: []char)
	var data: []bit8 :: #[30000]bit8
	var ptr: int :: 0
	var i: int :: 0
	var reader: @Reader :: #@Reader
	while(i < ^src)
		switch(src[i])
		case '>'
			do ptr :+ 1
		case '<'
			do ptr :- 1
		case '+'
			do data[ptr] :+ 1b8
		case '-'
			do data[ptr] :- 1b8
		case '.'
			do cui@print([data[ptr] $ char])
		case ','
			do data[ptr] :: reader.getChar() $ bit8
		case '['
			if(data[ptr] = 0b8)
				var cnt: int :: 1
				while(cnt > 0)
					do i :+ 1
					switch(src[i])
					case '['
						do cnt :+ 1
					case ']'
						do cnt :- 1
					end switch
				end while
			end if
		case ']'
			if(data[ptr] <> 0b8)
				var cnt: int :: 1
				while(cnt > 0)
					do i :- 1
					switch(src[i])
					case '['
						do cnt :- 1
					case ']'
						do cnt :+ 1
					end switch
				end while
			end if
		end switch
		do i :+ 1
	end while
	do cui@print("\n")
end func

class Reader()
	var buff: []char
	var p: int

	*func ctor()
		do me.buff :: ""
		do me.p :: 0
	end func

	+func getChar(): char
		do me.p :+ 1
		if(me.p >= ^me.buff)
			do me.p :: 0
			do me.buff :: cui@input() ~ "\n"
		end if
		ret me.buff[me.p]
	end func
end class