/******************************************************************************
 * This program simply writes characters from the alphabet to a file.
 * 
 * Copyright © 2020 Richard Lesh.  All rights reserved.
 *****************************************************************************/

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

fn writeTextFile(filespec:&str) -> Result<(), Arc<dyn error::Error>> {
	utf8mode(ofh);
// Latin alphabet
	{
		let mut c:i32 = 0x41;
		while c <= 0x5A {
			putcodepoint(c,ofh);
			c += 1;
		}
	}
	putchar('\n',ofh);
// Greek alphabet
	{
		let mut c:i32 = 0x391;
		while c <= 0x3A9 {
			putcodepoint(c,ofh);
			c += 1;
		}
	}
// Cyrillic alphabet
	{
		let mut c:i32 = 0x410;
		while c <= 0x42F {
			putcodepoint(c,ofh);
			c += 1;
		}
	}
	putchar('\n',ofh);
// Katakana alphabet
	{
		let mut c:i32 = 0x30A0;
		while c <= 0x30FF {
			putcodepoint(c,ofh);
			c += 1;
		}
	}
	putchar('\n',ofh);
	close(ofh)?;
}

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>>{
		writeTextFile(&filespec)?;
		return Ok(());
	})() {
		Ok(()) => {},
		Err(ex) => {
			if let Some(ex) = utils::isCustomErrorType(ex.clone(), io::Error("".to_string())){
				println!("Error: {}", format!("{}", ex));
			}
		}
	};
}