/******************************************************************************
 * This program simply copies a file to the console character by
 * character like the Unix 'cat' program.
 * 
 * Copyright © 2020 Richard Lesh.  All rights reserved.
 *****************************************************************************/

mod utils;
use std::error;
use std::sync::Arc;

fn readTextFile(filespec:&str) -> Result<(), Arc<dyn error::Error>> {
	utf8mode(ifh);
	let mut c:i32 = 0;
	while getcodepoint(c,ifh) {
		putcodepoint(c);
	}
	close(ifh);
}

fn main() {
	if args.len() != 2 {
		println!("Syntax: {} {{filename}}", utils::program_name().expect("program name should not be empty!"));
		exit(1);
	}
	let mut filespec:String = args[1];
	match (|| -> Result<(), Arc<dyn error::Error>>{
		readTextFile(&filespec)?;
		return Ok(());
	})() {
		Ok(()) => {},
		Err(ex) => {
			if let Some(ex) = utils::isCustomErrorType(ex.clone(), io::Error("".to_string())){
				println!("Error: {}", format!("{}", ex));
			}
		}
	};
}