fixed additional comsumption of token if operator

src/Lexer.cpp

@@ -203,7 +203,6 @@ namespace dumb {
 
 
 		this->tokenStream.emplace_back(type, "", this->line, this->column);
-		this->consume();
 	}
 
 	void Lexer::readStringLiteral() {
@@ -267,6 +266,10 @@ namespace dumb {
 				std::cout << "Unexpected token '" << this->current() << "' on line " << this->line << " column " << this->column << std::endl;
 				exit(1);
 		}
+		if (std::isdigit(this->current())) {
+			std::cout << "Unexpected token '" << this->current() << "' on line " << this->line << " column " << this->column << std::endl;
+			exit(1);
+		}
 		this->tokenStream.emplace_back(Token::Type::INTEGER_LITERAL, std::to_string(value), line, column);
 		this->resetBuffer();
 	}