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

package zweic;


/**
 * A small parser test class; it reads in a file and prints out
 * every/the first syntax error that is found. Programs which
 * do not yield error messages are supposed to be syntactically
 * correct.
 *
 * usage: scala zweic.ParserTest <file.zwei>
 */
object ParserTest {
  import java.io.{FileInputStream, IOException};

  def main(args: Array[String]): Unit = {
    if (args.length == 0) {
      Console.println("usage: scala zweic.ParserTest <file.zwei>");
      System.exit(1)
    }
    try {
      val in = new FileInputStream(args(0));
      new Parser(in).parse;
      in.close();
      if (Report.errors > 0)
        System.err.println(Report.errors + " errors found." );
      System.exit(if (Report.errors > 0) 1 else 0);
    }
    catch {
      case e: IOException => Report.fail(e.getMessage());
    }
  }

}