52 lines
954 B
Rust
52 lines
954 B
Rust
use metrify::run;
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use std::env;
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use std::io;
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use std::io::Write;
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use std::process;
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fn main() {
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let args: Vec<String> = env::args().collect();
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let name = args[0].clone();
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let args = args[1..].join(" ");
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if args.is_empty() {
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loop {
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print!("> ");
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match io::stdout().flush() {
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Ok(_) => {}
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Err(err) => {
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eprintln!("{name}: Error: {err}");
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process::exit(1);
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}
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}
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let mut input = String::new();
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match io::stdin().read_line(&mut input) {
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Ok(_) => {}
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Err(err) => {
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eprintln!("{name}: Error: {err}");
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process::exit(1);
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}
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}
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if input.is_empty() {
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println!(); // Add a newline if user pressed ^D
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break;
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}
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match run(&input) {
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Ok(str) => println!("{str}"),
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Err(err) => {
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eprintln!("Error: {err}");
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}
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}
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}
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} else {
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match run(&args) {
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Ok(str) => println!("{str}"),
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Err(err) => {
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eprintln!("{name}: Error: {err}");
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process::exit(1);
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}
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}
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}
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}
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