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Introduction

Fuck This compiles Brainfuck programs to Java bytecode. It emits standalone Java SE 5 class files. Fuck This is written in ANSI C (C90).

License

This software is released under the terms of the WTFPL. Naturally.

Usage Example

$ echo '++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]<-]>>.>---.+++++++..++
+.>>.<-.<.+++.------.--------.>>+.>++.' > hello.bf
$ ./ft hello.bf Hello
$ file Hello.class
Hello.class: compiled Java class data, version 49.0 (Java 1.5)
$ java Hello
Hello World!

For detailed instructions, supply the --help option.

Portability Notes

Brainfuck, despite its simplicity, is not a well defined language. Here is how Fuck This behaves with respect to the language's ambiguities:

  • The array is 30,000 cells long and each cell is a byte.
  • Incrementing a value of 255 yields 0 and decrementing a value of 0 yields 255.
  • Moving the index past array boundaries is allowed, but trying to access data there will crash the program.
  • The , command returns newlines exactly as they appear on the host filesystem (a 13 followed by a 10 on Windows, and just a 10 elsewhere).
  • The , command returns -1 (255) when EOF is reached.

This is known as Fuck This Flavored Brainfuck.

Building

Just run make in the root Fuck This directory to compile the executable. make clean is also supported.