diff --git a/headers/helperFunctions/HelperFunctions.h b/headers/helperFunctions/HelperFunctions.h
index 92fb5cb..70feb45 100644
--- a/headers/helperFunctions/HelperFunctions.h
+++ b/headers/helperFunctions/HelperFunctions.h
@@ -4,7 +4,7 @@
 #include <vector>
 #include <bitset>
 
-std::vector<std::string> splitString(const std::string& input, std::string delimiter) {
+inline std::vector<std::string> splitString(const std::string& input, std::string delimiter) {
     std::vector<std::string> tokens;
     std::string token;
     size_t start = 0;
@@ -24,7 +24,7 @@ std::vector<std::string> splitString(const std::string& input, std::string delim
     return tokens;
 }
 
-std::string trim(const std::string& str) {
+inline std::string trim(const std::string& str) {
     // Find the first non-whitespace character
     size_t start = str.find_first_not_of(" \t\n\r");
 
@@ -40,7 +40,7 @@ std::string trim(const std::string& str) {
     return str.substr(start, end - start + 1);
 }
 
-std::string replaceSubstring(const std::string& str, const std::string& findSubstring, const std::string& replacement) {
+inline std::string replaceSubstring(const std::string& str, const std::string& findSubstring, const std::string& replacement) {
     std::string result = str;
     size_t startPos = result.find(findSubstring);
 
@@ -52,11 +52,11 @@ std::string replaceSubstring(const std::string& str, const std::string& findSubs
     return result;
 }
 
-bool isHexDigit(char c) {
+inline bool isHexDigit(char c) {
     return (std::isdigit(c) || (std::isxdigit(c) && std::islower(c)));
 }
 
-u_long binaryStringToLong(const std::string& binaryString) {
+inline u_long binaryStringToLong(const std::string& binaryString) {
     std::string binaryDigits = binaryString.substr(2);  // Remove the '0b' prefix
     u_long result = 0;
     for (char ch : binaryDigits) {
diff --git a/source/Lexer.cpp b/source/Lexer.cpp
index 6e36bfb..50ed1f5 100644
--- a/source/Lexer.cpp
+++ b/source/Lexer.cpp
@@ -1,5 +1,7 @@
 #include "../headers/Lexer.h"
+#include "../headers/helperFunctions/HelperFunctions.h"
 #include <cctype>
+#include <stdexcept>
 
 using namespace std;
 
@@ -202,7 +204,7 @@ std::vector<Token> Lexer::Tokenize(std::string source){
                 }
                 else
                 {
-                    if(!src.empty() && ishexnumber(src[0]))
+                    if(!src.empty() && (src[0]))
                     {
                         if(notationChar == 'b') {
                             while (!src.empty() && (src[0] == '0' || src[0] == '1')) {
@@ -212,7 +214,7 @@ std::vector<Token> Lexer::Tokenize(std::string source){
                         }
                         else if(notationChar == 'x')
                         {
-                            while (!src.empty() && ishexnumber(src[0])) {
+                            while (!src.empty() && std::isxdigit(src[0])) {
 
                                 num += src[0];
                                 advance();
diff --git a/source/main.cpp b/source/main.cpp
index 902b4af..0778e7f 100644
--- a/source/main.cpp
+++ b/source/main.cpp
@@ -4,51 +4,12 @@
 
 
 #include "../headers/bob.h"
-#include "../headers/Expression.h"
-#include "../headers/Lexer.h"
-#include "../headers/ASTPrinter.h"
-#include "../headers/TypeWrapper.h"
+
 int main(){
     Bob bobLang;
 
     //bobLang.runFile("source.bob");
     bobLang.runPrompt();
 
-    //ASTPrinter printer;
-//
-//    std::shared_ptr<Expr<std::shared_ptr<Object>>> expression = std::make_shared<BinaryExpr<std::shared_ptr<Object>> >(
-//            std::make_shared<UnaryExpr<std::shared_ptr<Object>>>(
-//                    Token{MINUS, "-", 1},
-//                    std::make_shared<LiteralExpr<std::shared_ptr<Object>>>("123", true)
-//                    ),
-//            Token{MINUS, "-", 1},
-//            std::make_shared<GroupingExpr<std::shared_ptr<Object>>>(
-//                    std::make_shared<LiteralExpr<std::shared_ptr<Object>>>("45.67", true)
-//                    )
-//            );
-//
-////    Expr<std::string>* e = new BinaryExpr<std::string>(
-////                new UnaryExpr<std::string>(Token{MINUS, "-", 0}, new LiteralExpr<std::string>("123")),
-////                Token{STAR, "*", 0},
-////                new UnaryExpr<std::string>(Token{PLUS, "+", 0}, new LiteralExpr<std::string>("535"))
-////            );
-//
-//
-//    std::cout << std::dynamic_pointer_cast<String>(printer.print(expression.get()))->value;
-//
-//    std::cout << std::endl;
-
-    //bobLang.runPrompt();
-
-//    std::shared_ptr<Object> object = std::make_shared<String>(String{"Hi"});
-//
-//    if(auto num = std::dynamic_pointer_cast<Number>(object))
-//    {
-//        std::cout << num->value << std::endl;
-//    }else if(auto str = std::dynamic_pointer_cast<String>(object))
-//    {
-//        std::cout << str->value << std::endl;
-//    }
-
     return 0;
 }