can-dbc 9.0.0

A parser for the DBC format. The DBC format is used to exchange CAN network data.
Documentation 
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use std::borrow::Cow;
use std::convert::TryFrom;
use std::fs;
use std::str::from_utf8;

use can_dbc::encodings::Encoding;
use can_dbc::Dbc;
use clap::Parser;

#[derive(Parser)]
#[command(about, version)]
struct Args {
    /// Input file encoding. If not specified, UTF-8 is assumed.
    #[arg(short, long, default_value = "utf-8")]
    encoding: Option<String>,

    /// DBC file path
    #[arg(default_value = "./examples/sample.dbc", value_name = "FILE")]
    input: String,
}

fn main() {
    let args = Args::parse();
    let path = &args.input;

    let data = fs::read(path).expect("Unable to read input file");

    let data = if let Some(enc) = &args.encoding {
        let enc = Encoding::for_label(enc.as_bytes()).expect("Unknown encoding");
        enc.decode_without_bom_handling_and_without_replacement(&data)
            .expect("Unable to decode using specified encoding")
    } else {
        let data = from_utf8(&data).expect("Input file is not valid UTF-8. Consider specifying the encoding with the --encoding option.");
        Cow::Borrowed(data)
    };

    match Dbc::try_from(data.as_ref()) {
        Ok(dbc_content) => println!("{dbc_content:#?}"),
        Err(e) => eprintln!("Error parsing DBC file '{path}': {e}"),
    }
}