/*  zweic -- a compiler for zwei
 *
 *  Stephane Micheloud & LAMP
 *
 *  $Id$
 */

package zweic;


/**
 * A small scanner test class; it reads in a file and prints out
 * the sequence of tokens.
 *
 * usage: scala zweic.ScannerTest <file.zwei>
 */
object ScannerTest {
  import java.io.{FileInputStream, IOException};

  def main(args: Array[String]): Unit = {
    if (args.length != 1) {
      Console.println("usage: scala zweic.ScannerTest <file.zwei>");
      System.exit(1)
    }
    try {
      val in = new FileInputStream(args(0));
      val scanner = new Scanner(in);
      while (scanner.token != Tokens.EOF) {
        Console.println(scanner.representation);
        scanner.nextToken
      }
      in.close()
    }
    catch {
      case e: IOException => Report.fail(e.getMessage());
    }
  }

}