docs: private Expression expoOp(Data data) throws TemplateException {
  	Expression expr = unaryOp(data);
  
  	// Modulus Operation
  	while (data.srcCode.forwardIfCurrent('^') || data.srcCode.forwardIfCurrentAndNoWordAfter("exp")) {
  	    comments(data);
  	    expr = data.factory.opDouble(expr, unaryOp(data), Factory.OP_DBL_EXP);
  	}
  	return expr;
      }