verbena 0.1.0

Scripting language
Documentation 
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use std::env;
use std::fs;
use std::process;
use verbena::*;

fn main() {
    // Get command line arguments
    let args: Vec<String> = env::args().collect();

    // Check if a filename was provided
    if args.len() < 2 {
        eprintln!("Usage: {} <file>", args[0]);
        process::exit(1);
    }

    // Get the filename from command line arguments
    let file = &args[1];

    // Read the file contents
    let text = match fs::read_to_string(file) {
        Ok(text) => text,
        Err(e) => {
            eprintln!("Error reading {}: {}", file, e);
            process::exit(1);
        }
    };

    // Run the program
    let text = prep(&text);
    match parse(&text) {
        Err(e) => {
            eprintln!("{}", e.format_error(file, &text));
            process::exit(1);
        }
        Ok(program) => {
            let mut process = Process::new(program);
            if let Err(e) = process.run() {
                eprintln!("{}", e.format_error(file, &text));
                process::exit(1);
            }
        }
    }
}