public void insymbol() {
		try {
			nextSymbol = scanner.yylex();
		} catch (java.io.FileNotFoundException e) {
			System.out.println("File not found : \"" + fileName + "\"");
		} catch (java.io.IOException e) {
			System.out.println("IO error scanning file \"" + fileName + "\"");
			System.out.println(e);
		} catch (Exception e) {
			System.out.println("Unexpected exception:");
			e.printStackTrace();
		}
	}