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Add command line interface to run programs

main
Sebastian Lohff 9 months ago
parent
commit
a2fac3c87e
  1. 240
      Cargo.lock
  2. 1
      Cargo.toml
  3. 38
      src/main.rs

240
Cargo.lock generated

@ -2,6 +2,246 @@ @@ -2,6 +2,246 @@
# It is not intended for manual editing.
version = 3
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1
Cargo.toml

@ -6,3 +6,4 @@ edition = "2021" @@ -6,3 +6,4 @@ edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
clap = { version = "3.0.0-rc.9", features = ["derive"] }

38
src/main.rs

@ -1,3 +1,5 @@ @@ -1,3 +1,5 @@
use clap::Parser;
fn check_brainfuck(prog: &str) -> bool {
/*
@ -122,14 +124,42 @@ fn run_brainfuck(prog: &str, debug: bool) { @@ -122,14 +124,42 @@ fn run_brainfuck(prog: &str, debug: bool) {
}
}
/// Brainfuck interpreter in RUST!
#[derive(Parser, Debug)]
#[clap(about, version, author)]
struct Args {
/// Program to run (as string)
#[clap(short, long)]
program: Option<String>,
/// File to read program from
#[clap(short, long)]
file: Option<String>,
/// Debug output
#[clap(short, long)]
debug: bool,
}
fn main() {
println!("Welcome to rust BF!");
//let prog = "xxx]]";
let prog = "++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]<-]>>.>---.+++++++..+++.>>.<-.<.+++.------.--------.>>+.>++.";
if ! check_brainfuck(prog) {
let args = Args::parse();
let prog;
if let Some(arg_prog) = args.program {
prog = arg_prog;
} else if let Some(file) = args.file {
prog = std::fs::read_to_string(file).unwrap().trim().into();
} else {
println!("Either give me a program or a file to run");
return;
}
if ! check_brainfuck(&prog) {
println!("Invalid program, aborting");
return;
}
run_brainfuck(prog, false);
run_brainfuck(&prog, args.debug);
}

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