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     1  | 
// Part 2 about an Interpreter for the Brainf*** language
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     2  | 
//========================================================
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object CW8b {
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type Mem = Map[Int, Int]
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// (2a) Complete the functions for safely reading  
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// and writing brainf*** memory. Safely read should
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// Return the value stored in the Map for a given memory
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// pointer, if it exists; otherwise it Returns 0. The
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// writing function generates a new Map with the
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// same data, except at the given memory pointer the
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    14  | 
// value v is stored.
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def sread(mem: Mem, mp: Int) : Int = 
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  mem.getOrElse(mp, 0)
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def write(mem: Mem, mp: Int, v: Int) : Mem =
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  mem.updated(mp, v)
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// (2b) Implement the two jumping instructions in the 
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// brainf*** language. In jumpRight, given a program and 
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    26  | 
// a program counter move the program counter to the right 
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// until after the *matching* ]-command. Similarly, 
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// jumpLeft implements the move to the left to just after
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// the *matching* [--command.
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def jumpRight(prog: String, pc: Int, level: Int) : Int = {
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    32  | 
  if (prog.length <= pc) pc 
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  else (prog(pc), level) match {
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    case (']', 0) => pc + 1
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    case (']', l) => jumpRight(prog, pc + 1, l - 1)
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    case ('[', l) => jumpRight(prog, pc + 1, l + 1)
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    case (_, l) => jumpRight(prog, pc + 1, l)
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  }
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}
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def jumpLeft(prog: String, p: Int, level: Int) : Int = {
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  if (p < 0) p 
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  else (prog(p), level) match {
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    case ('[', 0) => p + 1
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    case ('[', l) => jumpLeft(prog, p - 1, l - 1)
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    case (']', l) => jumpLeft(prog, p - 1, l + 1)
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    case (_, l) => jumpLeft(prog, p - 1, l)
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  }
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}
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//jumpLeft("[******]***", 7, 0)
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// (2c) Complete the run function that interpretes (runs) a brainf***
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// program: the arguments are a program, a program counter,
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// a memory counter and a brainf*** memory. It Returns the
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// memory at the stage when the excution of the brainf*** program
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// finishes. The interpretation finishes once the program counter
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// pc is pointing to something outside the program string.
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// If the pc points to a character inside the program, the pc, 
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// memory pointer and memory need to be updated according to 
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// rules of the brainf*** language. Then, recursively, run 
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// function continues with the command at the new program
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// counter. 
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// Implement the start function that calls run with the program
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// counter and memory counter set to 0.
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def run(prog: String, pc: Int, mp: Int, mem: Mem) : Mem = {
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  if (0 <= pc && pc < prog.length) { 
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    val (new_pc, new_mp, new_mem) = prog(pc) match {
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      case '>' => (pc + 1, mp + 1, mem)
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      case '<' => (pc + 1, mp - 1, mem)
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      case '+' => (pc + 1, mp, write(mem, mp, sread(mem, mp) + 1))
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      case '-' => (pc + 1, mp, write(mem, mp, sread(mem, mp) - 1))
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      case '.' => { print(sread(mem, mp).toChar); (pc + 1, mp, mem) }
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      case ',' => (pc + 1, mp, write(mem, mp, Console.in.read().toByte))
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      case '['  => 
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	if (sread(mem, mp) == 0) (jumpRight(prog, pc + 1, 0), mp, mem) else (pc + 1, mp, mem) 
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      case ']'  => 
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	if (sread(mem, mp) != 0) (jumpLeft(prog, pc - 1, 0), mp, mem) else (pc + 1, mp, mem) 
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      case _ => (pc + 1, mp, mem)
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    }		     
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    run(prog, new_pc, new_mp, new_mem)	
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  }
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  else mem
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}
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def start(prog: String, m: Mem) = run(prog, 0, 0, m)
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// some sample programs collected from the Internet
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//==================================================
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/*
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// first some contrived (small) programs
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// clears the 0-cell
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start("[-]", Map(0 -> 100)) 
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// copies content of the 0-cell to 1-cell
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start("[->+<]", Map(0 -> 10))
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// copies content of the 0-cell to 2-cell and 4-cell
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start("[>>+>>+<<<<-]", Map(0 -> 42))
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// prints out numbers 0 to 9
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start("""+++++[->++++++++++<]>--<+++[->>++++++++++<<]>>++<<----------[+>.>.<+<]""", Map())
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// some more "useful" programs
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// hello world program 1
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start("""++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]<-]>>.>---.+++++++
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       ..+++.>>.<-.<.+++.------.--------.>>+.>++.""", Map())
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// hello world program 2
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start("""++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>+
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      +.<<+++++++++++++++.>.+++.------.--------.>+.>.""", Map())
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// draws the Sierpinski triangle
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start("""++++++++[>+>++++<<-]>++>>+<[-[>>+<<-]+>>]>+[-<<<[
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      ->[+[-]+>++>>>-<<]<[<]>>++++++[<<+++++>>-]+<<++.[-]<<
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      ]>.>+[>>]>+]""", Map())
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//fibonacci numbers below 100
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start("""+++++++++++
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      >+>>>>++++++++++++++++++++++++++++++++++++++++++++
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      >++++++++++++++++++++++++++++++++<<<<<<[>[>>>>>>+>
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      +<<<<<<<-]>>>>>>>[<<<<<<<+>>>>>>>-]<[>++++++++++[-
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      <-[>>+>+<<<-]>>>[<<<+>>>-]+<[>[-]<[-]]>[<<[>>>+<<<
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      -]>>[-]]<<]>>>[>>+>+<<<-]>>>[<<<+>>>-]+<[>[-]<[-]]
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      >[<<+>>[-]]<<<<<<<]>>>>>[+++++++++++++++++++++++++
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      +++++++++++++++++++++++.[-]]++++++++++<[->-<]>++++
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      ++++++++++++++++++++++++++++++++++++++++++++.[-]<<
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      <<<<<<<<<<[>>>+>+<<<<-]>>>>[<<<<+>>>>-]<-[>>.>.<<<
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      [-]]<<[>>+>+<<<-]>>>[<<<+>>>-]<<[<+>-]>[<+>-]<<<-]""", Map())
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//outputs the square numbers up to 10000
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start("""++++[>+++++<-]>[<+++++>-]+<+[
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    >[>+>+<<-]++>>[<<+>>-]>>>[-]++>[-]+
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    >>>+[[-]++++++>>>]<<<[[<++++++++<++>>-]+<.<[>----<-]<]
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    <<[>>>>>[>>>[-]+++++++++<[>-<-]+++++++++>[-[<->-]+[<<<]]<[>+<-]>]<<-]<<-]""", Map())
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//collatz numbers (need to be typed in)
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start(""">,[[----------[
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      >>>[>>>>]+[[-]+<[->>>>++>>>>+[>>>>]++[->+<<<<<]]<<<]
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      ++++++[>------<-]>--[>>[->>>>]+>+[<<<<]>-],<]>]>>>++>+>>[
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      <<[>>>>[-]+++++++++<[>-<-]+++++++++>[-[<->-]+[<<<<]]<[>+<-]>]
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      >[>[>>>>]+[[-]<[+[->>>>]>+<]>[<+>[<<<<]]+<<<<]>>>[->>>>]+>+[<<<<]]
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      >[[>+>>[<<<<+>>>>-]>]<<<<[-]>[-<<<<]]>>>>>>>
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      ]>>+[[-]++++++>>>>]<<<<[[<++++++++>-]<.[-]<[-]<[-]<]<,]""", Map())
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// infinite collatz (never stops)
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start(""">>+>+<[[->>[>>]>>>[>>]+[<<]<<<[<<]>[>[>>]>>+>[>>]<+<[<<]<<<[<
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      <]>-]>[>>]>>[<<<<[<<]>+>[>>]>>-]<<<<[<<]+>>]<<[+++++[>+++++++
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      +<-]>.<++++++[>--------<-]+<<]>>[>>]+[>>>>[<<+>+>-]<-[>+<-]+<
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      [<<->>-[<<+>>[-]]]>>>[<<<+<<+>>>>>-]<<<[>>>+<<<-]<<[[-]>+>>->
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      [<+<[<<+>>-]<[>+<-]<[>+<-]>>>>-]<[>+<-]+<[->[>>]<<[->[<+++>-[
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      <+++>-[<+++>-[<[-]++>>[-]+>+<<-[<+++>-[<+++>-[<[-]+>>>+<<-[<+
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      ++>-[<+++>-]]]]]]]]]<[>+<-]+<<]>>>+<[->[<+>-[<+>-[<+>-[<+>-[<
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      +>-[<+>-[<+>-[<+>-[<+>-[<[-]>>[-]+>+<<-[<+>-]]]]]]]]]]]<[>+<-
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      ]+>>]<<[<<]>]<[->>[->+>]<[-[<+>-[<->>+<-[<+>-[<->>+<-[<+>-[<-
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      >>+<-[<+>-[<->>+<-[<+>-[<->>+<-[<+>-[<->>+<-[<+>-[<->>+<-[<+>
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      -[<->>+<-[<+>-[<->>+<-[<+>-]]]]]]]]]]]]]]]]]]]>[<+>-]<+<[<+++
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      +++++++>-]<]>>[<+>->>]<<[>+>+<<-]>[<+>-]+>[<->[-]]<[-<<-]<<[<
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      <]]++++++[>+++++++<-]>++.------------.[-]>[>>]<<[+++++[>+++++
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      +++<-]>.<++++++[>--------<-]+<<]+<]>[<+>-]<]>>>[>>]<<[>[-]<-<
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      <]++++++++++.[-]<<<[<<]>>>+<[->[<+>-[<+>-[<+>-[<+>-[<+>-[<+>-
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      [<+>-[<+>-[<+>-[<[-]>>[-]+>+<<-]]]]]]]]]]<[>+<-]+>>]<<[<<]>>]""", Map())
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start("""+++++[>+++++++++<-],[[>--.++>+<<-]>+.->[<.>-]<<,]""", Map())
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*/ 
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def splice(cs: List[Char], acc: List[(Char, Int)]) : List[(Char, Int)] = (cs, acc) match {
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  case (Nil, acc) => acc
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  case (c :: cs, Nil) => splice(cs, List((c, 1)))
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  case (c :: cs, (d, n) :: acc) => 
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    if (c == d) splice(cs, (c, n + 1) :: acc)
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    else splice(cs, (c, 1) :: (d, n) :: acc)
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}
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def spl(s: String) = splice(s.toList, Nil).reverse
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// simple instructions
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def instr(c: Char) : String = c match {
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  case '>' => "ptr++;"
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  case '<' => "ptr--;"
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  case '+' => "(*ptr)++;"
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  case '-' => "(*ptr)--;"
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  case '.' => "putchar(*ptr);"
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  case ',' => "*ptr = getchar();\n"
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  case '['  => "while(*ptr){"
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  case ']'  => "}"
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  case _ => ""
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}
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def instrs(prog: String) : String =
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  prog.toList.map(instr(_)).mkString
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//optimised instructions
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def instr2(c: Char, n: Int) : String = c match {
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   211  | 
  case '>' => "ptr += " + n.toString + ";"
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  case '<' => "ptr -= " + n.toString + ";"
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  case '+' => "(*ptr) += " + n.toString + ";"
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  case '-' => "(*ptr) -= " + n.toString + ";"
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  case '.' => "putchar(*ptr);" * n
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  case ',' => "*ptr = getchar();\n" * n
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  case '['  => "while(*ptr){" * n
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  case ']'  => "}" * n
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  case _ => ""
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}
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def instrs2(prog: String) : String =
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   223  | 
  spl(prog).map{ case (c, n) => instr2(c, n) }.mkString
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   224  | 
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// peephole optimisers are at
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// https://github.com/Wilfred/bfc#peephole-optimisations
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// http://calmerthanyouare.org/2015/01/07/optimizing-brainfuck.html
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   229  | 
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def compile_str(prog: String) : String = {
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   231  | 
  "#include <string.h>\n" ++
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   232  | 
  "#include <stdio.h>\n" ++
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   233  | 
  "char field[30000];\n" ++
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   234  | 
  "char *ptr = &field[15000];" ++
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   235  | 
  "int main()\n{\n" ++
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   236  | 
  "memset(field, '\\0', 30000);\n" ++
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  instrs2(prog) ++
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  "\n return 0;\n}"
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   239  | 
}
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   240  | 
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   241  | 
def compile(name: String, prog: String) = {
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   242  | 
  val fw = new java.io.FileWriter(name + ".c") 
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   243  | 
  fw.write(compile_str(prog)) 
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   244  | 
  fw.close()
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   245  | 
}
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   246  | 
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   247  | 
import sys.process._
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   248  | 
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   249  | 
def compile_run(prog: String) = {
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   250  | 
  compile("tmp", prog)
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   251  | 
  "gcc -O3 -o tmp tmp.c".!
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   252  | 
  "./tmp".!
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   253  | 
  ()
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   254  | 
}
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   255  | 
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   256  | 
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   257  | 
compile_run("""++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]<-]>>.>---.+++++++
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   258  | 
       ..+++.>>.<-.<.+++.------.--------.>>+.>++.""")
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   259  | 
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   260  | 
compile_run("""++++++++[>+>++++<<-]>++>>+<[-[>>+<<-]+>>]>+[-<<<[
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   261  | 
      ->[+[-]+>++>>>-<<]<[<]>>++++++[<<+++++>>-]+<<++.[-]<<
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   262  | 
      ]>.>+[>>]>+]""")
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   263  | 
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   264  | 
compile_run("""      A mandelbrot set fractal viewer in brainf*** written by Erik Bosman
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   265  | 
+++++++++++++[->++>>>+++++>++>+<<<<<<]>>>>>++++++>--->>>>>>>>>>+++++++++++++++[[
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   266  | 
>>>>>>>>>]+[<<<<<<<<<]>>>>>>>>>-]+[>>>>>>>>[-]>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>[-]+
  | 
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 | 
   267  | 
<<<<<<<+++++[-[->>>>>>>>>+<<<<<<<<<]>>>>>>>>>]>>>>>>>+>>>>>>>>>>>>>>>>>>>>>>>>>>
  | 
| 
 | 
   268  | 
>+<<<<<<<<<<<<<<<<<[<<<<<<<<<]>>>[-]+[>>>>>>[>>>>>>>[-]>>]<<<<<<<<<[<<<<<<<<<]>>
  | 
| 
 | 
   269  | 
>>>>>[-]+<<<<<<++++[-[->>>>>>>>>+<<<<<<<<<]>>>>>>>>>]>>>>>>+<<<<<<+++++++[-[->>>
  | 
| 
 | 
   270  | 
>>>>>>+<<<<<<<<<]>>>>>>>>>]>>>>>>+<<<<<<<<<<<<<<<<[<<<<<<<<<]>>>[[-]>>>>>>[>>>>>
  | 
| 
 | 
   271  | 
>>[-<<<<<<+>>>>>>]<<<<<<[->>>>>>+<<+<<<+<]>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>
  | 
| 
 | 
   272  | 
[>>>>>>>>[-<<<<<<<+>>>>>>>]<<<<<<<[->>>>>>>+<<+<<<+<<]>>>>>>>>]<<<<<<<<<[<<<<<<<
  | 
| 
 | 
   273  | 
<<]>>>>>>>[-<<<<<<<+>>>>>>>]<<<<<<<[->>>>>>>+<<+<<<<<]>>>>>>>>>+++++++++++++++[[
  | 
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 | 
   274  | 
>>>>>>>>>]+>[-]>[-]>[-]>[-]>[-]>[-]>[-]>[-]>[-]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>-]+[
  | 
| 
 | 
   275  | 
>+>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>[>->>>>[-<<<<+>>>>]<<<<[->>>>+<<<<<[->>[
  | 
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 | 
   276  | 
-<<+>>]<<[->>+>>+<<<<]+>>>>>>>>>]<<<<<<<<[<<<<<<<<<]]>>>>>>>>>[>>>>>>>>>]<<<<<<<
  | 
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 | 
   277  | 
<<[>[->>>>>>>>>+<<<<<<<<<]<<<<<<<<<<]>[->>>>>>>>>+<<<<<<<<<]<+>>>>>>>>]<<<<<<<<<
  | 
| 
 | 
   278  | 
[>[-]<->>>>[-<<<<+>[<->-<<<<<<+>>>>>>]<[->+<]>>>>]<<<[->>>+<<<]<+<<<<<<<<<]>>>>>
  | 
| 
 | 
   279  | 
>>>>[>+>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>[>->>>>>[-<<<<<+>>>>>]<<<<<[->>>>>+
  | 
| 
 | 
   280  | 
<<<<<<[->>>[-<<<+>>>]<<<[->>>+>+<<<<]+>>>>>>>>>]<<<<<<<<[<<<<<<<<<]]>>>>>>>>>[>>
  | 
| 
 | 
   281  | 
>>>>>>>]<<<<<<<<<[>>[->>>>>>>>>+<<<<<<<<<]<<<<<<<<<<<]>>[->>>>>>>>>+<<<<<<<<<]<<
  | 
| 
 | 
   282  | 
+>>>>>>>>]<<<<<<<<<[>[-]<->>>>[-<<<<+>[<->-<<<<<<+>>>>>>]<[->+<]>>>>]<<<[->>>+<<
  | 
| 
 | 
   283  | 
<]<+<<<<<<<<<]>>>>>>>>>[>>>>[-<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<+>>>>>>>>>>>>>
  | 
| 
 | 
   284  | 
>>>>>>>>>>>>>>>>>>>>>>>]>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>+++++++++++++++[[>>>>
  | 
| 
 | 
   285  | 
>>>>>]<<<<<<<<<-<<<<<<<<<[<<<<<<<<<]>>>>>>>>>-]+>>>>>>>>>>>>>>>>>>>>>+<<<[<<<<<<
  | 
| 
 | 
   286  | 
<<<]>>>>>>>>>[>>>[-<<<->>>]+<<<[->>>->[-<<<<+>>>>]<<<<[->>>>+<<<<<<<<<<<<<[<<<<<
  | 
| 
 | 
   287  | 
<<<<]>>>>[-]+>>>>>[>>>>>>>>>]>+<]]+>>>>[-<<<<->>>>]+<<<<[->>>>-<[-<<<+>>>]<<<[->
  | 
| 
 | 
   288  | 
>>+<<<<<<<<<<<<[<<<<<<<<<]>>>[-]+>>>>>>[>>>>>>>>>]>[-]+<]]+>[-<[>>>>>>>>>]<<<<<<
  | 
| 
 | 
   289  | 
<<]>>>>>>>>]<<<<<<<<<[<<<<<<<<<]<<<<<<<[->+>>>-<<<<]>>>>>>>>>+++++++++++++++++++
  | 
| 
 | 
   290  | 
+++++++>>[-<<<<+>>>>]<<<<[->>>>+<<[-]<<]>>[<<<<<<<+<[-<+>>>>+<<[-]]>[-<<[->+>>>-
  | 
| 
 | 
   291  | 
<<<<]>>>]>>>>>>>>>>>>>[>>[-]>[-]>[-]>>>>>]<<<<<<<<<[<<<<<<<<<]>>>[-]>>>>>>[>>>>>
  | 
| 
 | 
   292  | 
[-<<<<+>>>>]<<<<[->>>>+<<<+<]>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>[>>[-<<<<<<<<
  | 
| 
 | 
   293  | 
<+>>>>>>>>>]>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>+++++++++++++++[[>>>>>>>>>]+>[-
  | 
| 
 | 
   294  | 
]>[-]>[-]>[-]>[-]>[-]>[-]>[-]>[-]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>-]+[>+>>>>>>>>]<<<
  | 
| 
 | 
   295  | 
<<<<<<[<<<<<<<<<]>>>>>>>>>[>->>>>>[-<<<<<+>>>>>]<<<<<[->>>>>+<<<<<<[->>[-<<+>>]<
  | 
| 
 | 
   296  | 
<[->>+>+<<<]+>>>>>>>>>]<<<<<<<<[<<<<<<<<<]]>>>>>>>>>[>>>>>>>>>]<<<<<<<<<[>[->>>>
  | 
| 
 | 
   297  | 
>>>>>+<<<<<<<<<]<<<<<<<<<<]>[->>>>>>>>>+<<<<<<<<<]<+>>>>>>>>]<<<<<<<<<[>[-]<->>>
  | 
| 
 | 
   298  | 
[-<<<+>[<->-<<<<<<<+>>>>>>>]<[->+<]>>>]<<[->>+<<]<+<<<<<<<<<]>>>>>>>>>[>>>>>>[-<
  | 
| 
 | 
   299  | 
<<<<+>>>>>]<<<<<[->>>>>+<<<<+<]>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>[>+>>>>>>>>
  | 
| 
 | 
   300  | 
]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>[>->>>>>[-<<<<<+>>>>>]<<<<<[->>>>>+<<<<<<[->>[-<<+
  | 
| 
 | 
   301  | 
>>]<<[->>+>>+<<<<]+>>>>>>>>>]<<<<<<<<[<<<<<<<<<]]>>>>>>>>>[>>>>>>>>>]<<<<<<<<<[>
  | 
| 
 | 
   302  | 
[->>>>>>>>>+<<<<<<<<<]<<<<<<<<<<]>[->>>>>>>>>+<<<<<<<<<]<+>>>>>>>>]<<<<<<<<<[>[-
  | 
| 
 | 
   303  | 
]<->>>>[-<<<<+>[<->-<<<<<<+>>>>>>]<[->+<]>>>>]<<<[->>>+<<<]<+<<<<<<<<<]>>>>>>>>>
  | 
| 
 | 
   304  | 
[>>>>[-<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<+>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
  | 
| 
 | 
   305  | 
]>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>[>>>[-<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<+>
  | 
| 
 | 
   306  | 
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>]>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>++++++++
  | 
| 
 | 
   307  | 
+++++++[[>>>>>>>>>]<<<<<<<<<-<<<<<<<<<[<<<<<<<<<]>>>>>>>>>-]+[>>>>>>>>[-<<<<<<<+
  | 
| 
 | 
   308  | 
>>>>>>>]<<<<<<<[->>>>>>>+<<<<<<+<]>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>[>>>>>>[
  | 
| 
 | 
   309  | 
-]>>>]<<<<<<<<<[<<<<<<<<<]>>>>+>[-<-<<<<+>>>>>]>[-<<<<<<[->>>>>+<++<<<<]>>>>>[-<
  | 
| 
 | 
   310  | 
<<<<+>>>>>]<->+>]<[->+<]<<<<<[->>>>>+<<<<<]>>>>>>[-]<<<<<<+>>>>[-<<<<->>>>]+<<<<
  | 
| 
 | 
   311  | 
[->>>>->>>>>[>>[-<<->>]+<<[->>->[-<<<+>>>]<<<[->>>+<<<<<<<<<<<<[<<<<<<<<<]>>>[-]
  | 
| 
 | 
   312  | 
+>>>>>>[>>>>>>>>>]>+<]]+>>>[-<<<->>>]+<<<[->>>-<[-<<+>>]<<[->>+<<<<<<<<<<<[<<<<<
  | 
| 
 | 
   313  | 
<<<<]>>>>[-]+>>>>>[>>>>>>>>>]>[-]+<]]+>[-<[>>>>>>>>>]<<<<<<<<]>>>>>>>>]<<<<<<<<<
  | 
| 
 | 
   314  | 
[<<<<<<<<<]>>>>[-<<<<+>>>>]<<<<[->>>>+>>>>>[>+>>[-<<->>]<<[->>+<<]>>>>>>>>]<<<<<
  | 
| 
 | 
   315  | 
<<<+<[>[->>>>>+<<<<[->>>>-<<<<<<<<<<<<<<+>>>>>>>>>>>[->>>+<<<]<]>[->>>-<<<<<<<<<
  | 
| 
 | 
   316  | 
<<<<<+>>>>>>>>>>>]<<]>[->>>>+<<<[->>>-<<<<<<<<<<<<<<+>>>>>>>>>>>]<]>[->>>+<<<]<<
  | 
| 
 | 
   317  | 
<<<<<<<<<<]>>>>[-]<<<<]>>>[-<<<+>>>]<<<[->>>+>>>>>>[>+>[-<->]<[->+<]>>>>>>>>]<<<
  | 
| 
 | 
   318  | 
<<<<<+<[>[->>>>>+<<<[->>>-<<<<<<<<<<<<<<+>>>>>>>>>>[->>>>+<<<<]>]<[->>>>-<<<<<<<
  | 
| 
 | 
   319  | 
<<<<<<<+>>>>>>>>>>]<]>>[->>>+<<<<[->>>>-<<<<<<<<<<<<<<+>>>>>>>>>>]>]<[->>>>+<<<<
  | 
| 
 | 
   320  | 
]<<<<<<<<<<<]>>>>>>+<<<<<<]]>>>>[-<<<<+>>>>]<<<<[->>>>+>>>>>[>>>>>>>>>]<<<<<<<<<
  | 
| 
 | 
   321  | 
[>[->>>>>+<<<<[->>>>-<<<<<<<<<<<<<<+>>>>>>>>>>>[->>>+<<<]<]>[->>>-<<<<<<<<<<<<<<
  | 
| 
 | 
   322  | 
+>>>>>>>>>>>]<<]>[->>>>+<<<[->>>-<<<<<<<<<<<<<<+>>>>>>>>>>>]<]>[->>>+<<<]<<<<<<<
  | 
| 
 | 
   323  | 
<<<<<]]>[-]>>[-]>[-]>>>>>[>>[-]>[-]>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>[>>>>>[-<
  | 
| 
 | 
   324  | 
<<<+>>>>]<<<<[->>>>+<<<+<]>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>+++++++++++++++[
  | 
| 
 | 
   325  | 
[>>>>>>>>>]+>[-]>[-]>[-]>[-]>[-]>[-]>[-]>[-]>[-]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>-]+
  | 
| 
 | 
   326  | 
[>+>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>[>->>>>[-<<<<+>>>>]<<<<[->>>>+<<<<<[->>
  | 
| 
 | 
   327  | 
[-<<+>>]<<[->>+>+<<<]+>>>>>>>>>]<<<<<<<<[<<<<<<<<<]]>>>>>>>>>[>>>>>>>>>]<<<<<<<<
  | 
| 
 | 
   328  | 
<[>[->>>>>>>>>+<<<<<<<<<]<<<<<<<<<<]>[->>>>>>>>>+<<<<<<<<<]<+>>>>>>>>]<<<<<<<<<[
  | 
| 
 | 
   329  | 
>[-]<->>>[-<<<+>[<->-<<<<<<<+>>>>>>>]<[->+<]>>>]<<[->>+<<]<+<<<<<<<<<]>>>>>>>>>[
  | 
| 
 | 
   330  | 
>>>[-<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<+>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>]>
  | 
| 
 | 
   331  | 
>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>[-]>>>>+++++++++++++++[[>>>>>>>>>]<<<<<<<<<-<<<<<
  | 
| 
 | 
   332  | 
<<<<[<<<<<<<<<]>>>>>>>>>-]+[>>>[-<<<->>>]+<<<[->>>->[-<<<<+>>>>]<<<<[->>>>+<<<<<
  | 
| 
 | 
   333  | 
<<<<<<<<[<<<<<<<<<]>>>>[-]+>>>>>[>>>>>>>>>]>+<]]+>>>>[-<<<<->>>>]+<<<<[->>>>-<[-
  | 
| 
 | 
   334  | 
<<<+>>>]<<<[->>>+<<<<<<<<<<<<[<<<<<<<<<]>>>[-]+>>>>>>[>>>>>>>>>]>[-]+<]]+>[-<[>>
  | 
| 
 | 
   335  | 
>>>>>>>]<<<<<<<<]>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>[-<<<+>>>]<<<[->>>+>>>>>>[>+>>>
  | 
| 
 | 
   336  | 
[-<<<->>>]<<<[->>>+<<<]>>>>>>>>]<<<<<<<<+<[>[->+>[-<-<<<<<<<<<<+>>>>>>>>>>>>[-<<
  | 
| 
 | 
   337  | 
+>>]<]>[-<<-<<<<<<<<<<+>>>>>>>>>>>>]<<<]>>[-<+>>[-<<-<<<<<<<<<<+>>>>>>>>>>>>]<]>
  | 
| 
 | 
   338  | 
[-<<+>>]<<<<<<<<<<<<<]]>>>>[-<<<<+>>>>]<<<<[->>>>+>>>>>[>+>>[-<<->>]<<[->>+<<]>>
  | 
| 
 | 
   339  | 
>>>>>>]<<<<<<<<+<[>[->+>>[-<<-<<<<<<<<<<+>>>>>>>>>>>[-<+>]>]<[-<-<<<<<<<<<<+>>>>
  | 
| 
 | 
   340  | 
>>>>>>>]<<]>>>[-<<+>[-<-<<<<<<<<<<+>>>>>>>>>>>]>]<[-<+>]<<<<<<<<<<<<]>>>>>+<<<<<
  | 
| 
 | 
   341  | 
]>>>>>>>>>[>>>[-]>[-]>[-]>>>>]<<<<<<<<<[<<<<<<<<<]>>>[-]>[-]>>>>>[>>>>>>>[-<<<<<
  | 
| 
 | 
   342  | 
<+>>>>>>]<<<<<<[->>>>>>+<<<<+<<]>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>+>[-<-<<<<+>>>>
  | 
| 
 | 
   343  | 
>]>>[-<<<<<<<[->>>>>+<++<<<<]>>>>>[-<<<<<+>>>>>]<->+>>]<<[->>+<<]<<<<<[->>>>>+<<
  | 
| 
 | 
   344  | 
<<<]+>>>>[-<<<<->>>>]+<<<<[->>>>->>>>>[>>>[-<<<->>>]+<<<[->>>-<[-<<+>>]<<[->>+<<
  | 
| 
 | 
   345  | 
<<<<<<<<<[<<<<<<<<<]>>>>[-]+>>>>>[>>>>>>>>>]>+<]]+>>[-<<->>]+<<[->>->[-<<<+>>>]<
  | 
| 
 | 
   346  | 
<<[->>>+<<<<<<<<<<<<[<<<<<<<<<]>>>[-]+>>>>>>[>>>>>>>>>]>[-]+<]]+>[-<[>>>>>>>>>]<
  | 
| 
 | 
   347  | 
<<<<<<<]>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>[-<<<+>>>]<<<[->>>+>>>>>>[>+>[-<->]<[->+
  | 
| 
 | 
   348  | 
<]>>>>>>>>]<<<<<<<<+<[>[->>>>+<<[->>-<<<<<<<<<<<<<+>>>>>>>>>>[->>>+<<<]>]<[->>>-
  | 
| 
 | 
   349  | 
<<<<<<<<<<<<<+>>>>>>>>>>]<]>>[->>+<<<[->>>-<<<<<<<<<<<<<+>>>>>>>>>>]>]<[->>>+<<<
  | 
| 
 | 
   350  | 
]<<<<<<<<<<<]>>>>>[-]>>[-<<<<<<<+>>>>>>>]<<<<<<<[->>>>>>>+<<+<<<<<]]>>>>[-<<<<+>
  | 
| 
 | 
   351  | 
>>>]<<<<[->>>>+>>>>>[>+>>[-<<->>]<<[->>+<<]>>>>>>>>]<<<<<<<<+<[>[->>>>+<<<[->>>-
  | 
| 
 | 
   352  | 
<<<<<<<<<<<<<+>>>>>>>>>>>[->>+<<]<]>[->>-<<<<<<<<<<<<<+>>>>>>>>>>>]<<]>[->>>+<<[
  | 
| 
 | 
   353  | 
->>-<<<<<<<<<<<<<+>>>>>>>>>>>]<]>[->>+<<]<<<<<<<<<<<<]]>>>>[-]<<<<]>>>>[-<<<<+>>
  | 
| 
 | 
   354  | 
>>]<<<<[->>>>+>[-]>>[-<<<<<<<+>>>>>>>]<<<<<<<[->>>>>>>+<<+<<<<<]>>>>>>>>>[>>>>>>
  | 
| 
 | 
   355  | 
>>>]<<<<<<<<<[>[->>>>+<<<[->>>-<<<<<<<<<<<<<+>>>>>>>>>>>[->>+<<]<]>[->>-<<<<<<<<
  | 
| 
 | 
   356  | 
<<<<<+>>>>>>>>>>>]<<]>[->>>+<<[->>-<<<<<<<<<<<<<+>>>>>>>>>>>]<]>[->>+<<]<<<<<<<<
  | 
| 
 | 
   357  | 
<<<<]]>>>>>>>>>[>>[-]>[-]>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>[-]>[-]>>>>>[>>>>>[-<<<<+
  | 
| 
 | 
   358  | 
>>>>]<<<<[->>>>+<<<+<]>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>[>>>>>>[-<<<<<+>>>>>
  | 
| 
 | 
   359  | 
]<<<<<[->>>>>+<<<+<<]>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>+++++++++++++++[[>>>>
  | 
| 
 | 
   360  | 
>>>>>]+>[-]>[-]>[-]>[-]>[-]>[-]>[-]>[-]>[-]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>-]+[>+>>
  | 
| 
 | 
   361  | 
>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>[>->>>>[-<<<<+>>>>]<<<<[->>>>+<<<<<[->>[-<<+
  | 
| 
 | 
   362  | 
>>]<<[->>+>>+<<<<]+>>>>>>>>>]<<<<<<<<[<<<<<<<<<]]>>>>>>>>>[>>>>>>>>>]<<<<<<<<<[>
  | 
| 
 | 
   363  | 
[->>>>>>>>>+<<<<<<<<<]<<<<<<<<<<]>[->>>>>>>>>+<<<<<<<<<]<+>>>>>>>>]<<<<<<<<<[>[-
  | 
| 
 | 
   364  | 
]<->>>>[-<<<<+>[<->-<<<<<<+>>>>>>]<[->+<]>>>>]<<<[->>>+<<<]<+<<<<<<<<<]>>>>>>>>>
  | 
| 
 | 
   365  | 
[>+>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>[>->>>>>[-<<<<<+>>>>>]<<<<<[->>>>>+<<<<
  | 
| 
 | 
   366  | 
<<[->>>[-<<<+>>>]<<<[->>>+>+<<<<]+>>>>>>>>>]<<<<<<<<[<<<<<<<<<]]>>>>>>>>>[>>>>>>
  | 
| 
 | 
   367  | 
>>>]<<<<<<<<<[>>[->>>>>>>>>+<<<<<<<<<]<<<<<<<<<<<]>>[->>>>>>>>>+<<<<<<<<<]<<+>>>
  | 
| 
 | 
   368  | 
>>>>>]<<<<<<<<<[>[-]<->>>>[-<<<<+>[<->-<<<<<<+>>>>>>]<[->+<]>>>>]<<<[->>>+<<<]<+
  | 
| 
 | 
   369  | 
<<<<<<<<<]>>>>>>>>>[>>>>[-<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<+>>>>>>>>>>>>>>>>>
  | 
| 
 | 
   370  | 
>>>>>>>>>>>>>>>>>>>]>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>+++++++++++++++[[>>>>>>>>
  | 
| 
 | 
   371  | 
>]<<<<<<<<<-<<<<<<<<<[<<<<<<<<<]>>>>>>>>>-]+>>>>>>>>>>>>>>>>>>>>>+<<<[<<<<<<<<<]
  | 
| 
 | 
   372  | 
>>>>>>>>>[>>>[-<<<->>>]+<<<[->>>->[-<<<<+>>>>]<<<<[->>>>+<<<<<<<<<<<<<[<<<<<<<<<
  | 
| 
 | 
   373  | 
]>>>>[-]+>>>>>[>>>>>>>>>]>+<]]+>>>>[-<<<<->>>>]+<<<<[->>>>-<[-<<<+>>>]<<<[->>>+<
  | 
| 
 | 
   374  | 
<<<<<<<<<<<[<<<<<<<<<]>>>[-]+>>>>>>[>>>>>>>>>]>[-]+<]]+>[-<[>>>>>>>>>]<<<<<<<<]>
  | 
| 
 | 
   375  | 
>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>->>[-<<<<+>>>>]<<<<[->>>>+<<[-]<<]>>]<<+>>>>[-<<<<
  | 
| 
 | 
   376  | 
->>>>]+<<<<[->>>>-<<<<<<.>>]>>>>[-<<<<<<<.>>>>>>>]<<<[-]>[-]>[-]>[-]>[-]>[-]>>>[
  | 
| 
 | 
   377  | 
>[-]>[-]>[-]>[-]>[-]>[-]>>>]<<<<<<<<<[<<<<<<<<<]>>>>>>>>>[>>>>>[-]>>>>]<<<<<<<<<
  | 
| 
 | 
   378  | 
[<<<<<<<<<]>+++++++++++[-[->>>>>>>>>+<<<<<<<<<]>>>>>>>>>]>>>>+>>>>>>>>>+<<<<<<<<
  | 
| 
 | 
   379  | 
<<<<<<[<<<<<<<<<]>>>>>>>[-<<<<<<<+>>>>>>>]<<<<<<<[->>>>>>>+[-]>>[>>>>>>>>>]<<<<<
  | 
| 
 | 
   380  | 
<<<<[>>>>>>>[-<<<<<<+>>>>>>]<<<<<<[->>>>>>+<<<<<<<[<<<<<<<<<]>>>>>>>[-]+>>>]<<<<
  | 
| 
 | 
   381  | 
<<<<<<]]>>>>>>>[-<<<<<<<+>>>>>>>]<<<<<<<[->>>>>>>+>>[>+>>>>[-<<<<->>>>]<<<<[->>>
  | 
| 
 | 
   382  | 
>+<<<<]>>>>>>>>]<<+<<<<<<<[>>>>>[->>+<<]<<<<<<<<<<<<<<]>>>>>>>>>[>>>>>>>>>]<<<<<
  | 
| 
 | 
   383  | 
<<<<[>[-]<->>>>>>>[-<<<<<<<+>[<->-<<<+>>>]<[->+<]>>>>>>>]<<<<<<[->>>>>>+<<<<<<]<
  | 
| 
 | 
   384  | 
+<<<<<<<<<]>>>>>>>-<<<<[-]+<<<]+>>>>>>>[-<<<<<<<->>>>>>>]+<<<<<<<[->>>>>>>->>[>>
  | 
| 
 | 
   385  | 
>>>[->>+<<]>>>>]<<<<<<<<<[>[-]<->>>>>>>[-<<<<<<<+>[<->-<<<+>>>]<[->+<]>>>>>>>]<<
  | 
| 
 | 
   386  | 
<<<<[->>>>>>+<<<<<<]<+<<<<<<<<<]>+++++[-[->>>>>>>>>+<<<<<<<<<]>>>>>>>>>]>>>>+<<<
  | 
| 
 | 
   387  | 
<<[<<<<<<<<<]>>>>>>>>>[>>>>>[-<<<<<->>>>>]+<<<<<[->>>>>->>[-<<<<<<<+>>>>>>>]<<<<
  | 
| 
 | 
   388  | 
<<<[->>>>>>>+<<<<<<<<<<<<<<<<[<<<<<<<<<]>>>>[-]+>>>>>[>>>>>>>>>]>+<]]+>>>>>>>[-<
  | 
| 
 | 
   389  | 
<<<<<<->>>>>>>]+<<<<<<<[->>>>>>>-<<[-<<<<<+>>>>>]<<<<<[->>>>>+<<<<<<<<<<<<<<[<<<
  | 
| 
 | 
   390  | 
<<<<<<]>>>[-]+>>>>>>[>>>>>>>>>]>[-]+<]]+>[-<[>>>>>>>>>]<<<<<<<<]>>>>>>>>]<<<<<<<
  | 
| 
 | 
   391  | 
<<[<<<<<<<<<]>>>>[-]<<<+++++[-[->>>>>>>>>+<<<<<<<<<]>>>>>>>>>]>>>>-<<<<<[<<<<<<<
  | 
| 
 | 
   392  | 
<<]]>>>]<<<<.>>>>>>>>>>[>>>>>>[-]>>>]<<<<<<<<<[<<<<<<<<<]>++++++++++[-[->>>>>>>>
  | 
| 
 | 
   393  | 
>+<<<<<<<<<]>>>>>>>>>]>>>>>+>>>>>>>>>+<<<<<<<<<<<<<<<[<<<<<<<<<]>>>>>>>>[-<<<<<<
  | 
| 
 | 
   394  | 
<<+>>>>>>>>]<<<<<<<<[->>>>>>>>+[-]>[>>>>>>>>>]<<<<<<<<<[>>>>>>>>[-<<<<<<<+>>>>>>
  | 
| 
 | 
   395  | 
>]<<<<<<<[->>>>>>>+<<<<<<<<[<<<<<<<<<]>>>>>>>>[-]+>>]<<<<<<<<<<]]>>>>>>>>[-<<<<<
  | 
| 
 | 
   396  | 
<<<+>>>>>>>>]<<<<<<<<[->>>>>>>>+>[>+>>>>>[-<<<<<->>>>>]<<<<<[->>>>>+<<<<<]>>>>>>
  | 
| 
 | 
   397  | 
>>]<+<<<<<<<<[>>>>>>[->>+<<]<<<<<<<<<<<<<<<]>>>>>>>>>[>>>>>>>>>]<<<<<<<<<[>[-]<-
  | 
| 
 | 
   398  | 
>>>>>>>>[-<<<<<<<<+>[<->-<<+>>]<[->+<]>>>>>>>>]<<<<<<<[->>>>>>>+<<<<<<<]<+<<<<<<
  | 
| 
 | 
   399  | 
<<<]>>>>>>>>-<<<<<[-]+<<<]+>>>>>>>>[-<<<<<<<<->>>>>>>>]+<<<<<<<<[->>>>>>>>->[>>>
  | 
| 
 | 
   400  | 
>>>[->>+<<]>>>]<<<<<<<<<[>[-]<->>>>>>>>[-<<<<<<<<+>[<->-<<+>>]<[->+<]>>>>>>>>]<<
  | 
| 
 | 
   401  | 
<<<<<[->>>>>>>+<<<<<<<]<+<<<<<<<<<]>+++++[-[->>>>>>>>>+<<<<<<<<<]>>>>>>>>>]>>>>>
  | 
| 
 | 
   402  | 
+>>>>>>>>>>>>>>>>>>>>>>>>>>>+<<<<<<[<<<<<<<<<]>>>>>>>>>[>>>>>>[-<<<<<<->>>>>>]+<
  | 
| 
 | 
   403  | 
<<<<<[->>>>>>->>[-<<<<<<<<+>>>>>>>>]<<<<<<<<[->>>>>>>>+<<<<<<<<<<<<<<<<<[<<<<<<<
  | 
| 
 | 
   404  | 
<<]>>>>[-]+>>>>>[>>>>>>>>>]>+<]]+>>>>>>>>[-<<<<<<<<->>>>>>>>]+<<<<<<<<[->>>>>>>>
  | 
| 
 | 
   405  | 
-<<[-<<<<<<+>>>>>>]<<<<<<[->>>>>>+<<<<<<<<<<<<<<<[<<<<<<<<<]>>>[-]+>>>>>>[>>>>>>
  | 
| 
 | 
   406  | 
>>>]>[-]+<]]+>[-<[>>>>>>>>>]<<<<<<<<]>>>>>>>>]<<<<<<<<<[<<<<<<<<<]>>>>[-]<<<++++
  | 
| 
 | 
   407  | 
+[-[->>>>>>>>>+<<<<<<<<<]>>>>>>>>>]>>>>>->>>>>>>>>>>>>>>>>>>>>>>>>>>-<<<<<<[<<<<
  | 
| 
 | 
   408  | 
<<<<<]]>>>]""")
  | 
| 
 | 
   409  | 
  | 
| 
 | 
   410  | 
compile_run("""
 | 
| 
 | 
   411  | 
>+>+>+>+>++<[>[<+++>-
  | 
| 
 | 
   412  | 
  | 
| 
 | 
   413  | 
  >>>>>
  | 
| 
 | 
   414  | 
  >+>+>+>+>++<[>[<+++>-
  | 
| 
 | 
   415  | 
  | 
| 
 | 
   416  | 
    >>>>>
  | 
| 
 | 
   417  | 
    >+>+>+>+>++<[>[<+++>-
  | 
| 
 | 
   418  | 
  | 
| 
 | 
   419  | 
      >>>>>
  | 
| 
 | 
   420  | 
      >+>+>+>+>++<[>[<+++>-
  | 
| 
 | 
   421  | 
  | 
| 
 | 
   422  | 
        >>>>>
  | 
| 
 | 
   423  | 
        +++[->+++++<]>[-]<
  | 
| 
 | 
   424  | 
        <<<<<
  | 
| 
 | 
   425  | 
  | 
| 
 | 
   426  | 
      ]<<]>[-]
  | 
| 
 | 
   427  | 
      <<<<<
  | 
| 
 | 
   428  | 
  | 
| 
 | 
   429  | 
    ]<<]>[-]
  | 
| 
 | 
   430  | 
    <<<<<
  | 
| 
 | 
   431  | 
  | 
| 
 | 
   432  | 
  ]<<]>[-]
  | 
| 
 | 
   433  | 
  <<<<<
  | 
| 
 | 
   434  | 
  | 
| 
 | 
   435  | 
]<<]>.""")
  | 
| 
 | 
   436  | 
  | 
| 
 | 
   437  | 
// benchmarks
  | 
| 
 | 
   438  | 
compile_run(""">++[<+++++++++++++>-]<[[>+>+<<-]>[<+>-]++++++++
 | 
| 
 | 
   439  | 
[>++++++++<-]>.[-]<<>++++++++++[>++++++++++[>++
  | 
| 
 | 
   440  | 
++++++++[>++++++++++[>++++++++++[>++++++++++[>+
  | 
| 
 | 
   441  | 
+++++++++[-]<-]<-]<-]<-]<-]<-]<-]++++++++++.""")
  | 
| 
 | 
   442  | 
  | 
| 
 | 
   443  | 
//
  | 
| 
 | 
   444  | 
compile_run("""++++[>++++<-]>[>+>++>[+++++++>]+++[<]>-]>>>>>>>>-.
 | 
| 
 | 
   445  | 
<<<<.<..+++.<.>>>>.<<<.+++.------.>-.<<+.<------.""")
  | 
| 
 | 
   446  | 
  | 
| 
 | 
   447  | 
compile_run("""++++++++[->-[->-[->-[-]<]<]<]
 | 
| 
 | 
   448  | 
>++++++++[<++++++++++>-]<[>+>+<<-]>-.>-----.>""")
  | 
| 
 | 
   449  | 
  | 
| 
 | 
   450  | 
  | 
| 
 | 
   451  | 
  | 
| 
 | 
   452  | 
  | 
| 
 | 
   453  | 
// register to BF compiler
  | 
| 
 | 
   454  | 
// https://gergo.erdi.hu/blog/2010-09-06-from_register_machines_to_brainfuck,_part_1/
  | 
| 
 | 
   455  | 
}
  |