32 lines
885 B
Rust
32 lines
885 B
Rust
pub fn read_brainfuck_code(source: &String) -> String {
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info!("Reading brainfuck source code from file: {}", source);
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match std::fs::read_to_string(source) {
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Ok(source) => clean(source).unwrap_or_else(|| {
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error!("The source code is empty");
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std::process::exit(2);
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}),
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Err(e) => {
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error!("Failed to read source code file: {}", e);
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eprintln!("Failed to read source code file: {}", e);
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std::process::exit(1);
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}
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}
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}
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fn clean(source: String) -> Option<String> {
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if source.is_empty() {
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return None;
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}
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let code: String = source
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.chars()
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.filter(|c| match c {
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'+' | '-' | '<' | '>' | '[' | ']' | '.' | ',' => true,
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_ => false,
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})
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.collect();
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if code.is_empty() {
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return None;
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}
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Some(code)
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}
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