BFBackend: A Compiler Backend for Brainfuck

BFBackend is a Rust crate which allows you to use Rust functions to generate Brainfuck code.

Features

• Comparisons (equals, not equals, greater than, and less than)
• Text display
• Read strings of a specified length
• Setting single cells and arrays efficiently
• Efficiently matching on the value of a byte
• Multiplication, division, addition, subtraction, exponentiation
• General variable/memory manipulation utilities

Concepts

• Variable: a container for a slice of memory and variable data
• ByteRef: a reference to a specific cell in memory as well as a reference to the variable which the cell is a part of
• MemoryRange: a pointer to a start cell along with the size of the data

How to Use

• Create a BfContext:

  use bfbackend::BfContext;
  let ctx = BfContext::default();
  

• Run functions on it to generate Brainfuck code:

  let mut my_num = ctx.declare_and_set_byte(42);
  ctx.add_to_var(&mut my_num.get_byte_ref());
  

• Get your code:

  let code = ctx.build_code();
  println!("{code}");