brainstem 0.1.0

A Brainfuck compiler and interpreter library, with a BrainStem frontend language.
Documentation 
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//! Integration tests for the brainstem library

#[test]
fn compile_and_run_brainstem() {
    let src = r#"var x = 2 + 2; putc("0" + x);"#;
    let bf = brainstem::compile_brain_stem(src).expect("compile");
    let mut output = Vec::new();
    let mut input = std::io::empty();
    let steps = brainstem::run_program::<u8>(&bf, &mut input, &mut output, Some(1000)).expect("run");
    assert!(steps > 0);
    assert_eq!(output, b"4");
}