code: @Override
  	public void syntaxError(Recognizer<?, ?> recognizer, Object offendingSymbol, int line, int charPositionInLine,
  			String msg, RecognitionException e) {
  		
  	}
docs: /* (non-Javadoc)
  @see org.antlr.v4.runtime.ANTLRErrorListener#syntaxError(org.antlr.v4.runtime.Recognizer, java.lang.Object, int, int, java.lang.String, org.antlr.v4.runtime.RecognitionException)