Michael Schimmel
97542b5ca4
The project now uses the `clap` crate for handling command-line arguments, replacing the previous manual parsing approach. This includes adding `clap` as a dependency and creating a `Cli` struct to define the command-line interface. The `main` function has been updated to parse these arguments and handle file input or direct script evaluation.
46 lines
1.2 KiB
Rust
46 lines
1.2 KiB
Rust
use myc::ast::environment::Environment;
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use clap::Parser;
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use std::fs;
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use std::path::PathBuf;
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#[derive(Parser)]
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#[command(author, version, about = "MYC AST Compiler CLI", long_about = None)]
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struct Cli {
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/// The script file to run
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#[arg(value_name = "FILE")]
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file: Option<PathBuf>,
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/// Run a script string directly
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#[arg(short, long)]
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eval: Option<String>,
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}
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fn main() {
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let cli = Cli::parse();
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let env = Environment::new();
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if let Some(script_str) = cli.eval {
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execute(&env, &script_str);
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} else if let Some(file_path) = cli.file {
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match fs::read_to_string(&file_path) {
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Ok(content) => execute(&env, &content),
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Err(e) => {
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eprintln!("Error reading file {:?}: {}", file_path, e);
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std::process::exit(1);
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}
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}
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} else {
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println!("MYC AST Compiler CLI. Use --help for usage.");
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}
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}
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fn execute(env: &Environment, source: &str) {
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match env.run_script(source) {
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Ok(result) => println!("{}", result),
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Err(e) => {
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eprintln!("Error: {}", 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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