Fixed up the code a bit and fixed a memory leak bug (of course, there's still no good way to free Tokens but that'll be sorted out later).

src/main.c

@@ -26,7 +26,7 @@ int main(int argc, char* args[]) {
         Token* t = (Token*) list->content[i];
 
         printf("[%i] '%s'", t->type, t->lexeme);
-        if (t->type == NUMBER || t->type == HEX) printf(" NUM: %ld", (long) t->value);
+        if (t->type == NUMBER || t->type == HEX) printf(" NUM: %ld", *((long *) t->value));
         printf("\n");
     }
 

src/scanner.c

@@ -1,4 +1,6 @@
 #include "../includes/scanner.h"
+#include <stdlib.h>
+#include <string.h>
 
 const char* SourceCode;
 int Line = 0;
@@ -93,20 +95,26 @@ Token* ParseNumber(void) {
     if (length == 0) return NULL;
 
     char* lexeme = calloc(sizeof(char), length + 1);
+    long* value = calloc(1, sizeof(long));
 
     if (!lexeme) {
         fprintf(stderr, "Failed to calloc space for number. %s.\n", strerror(errno));
         return NULL;
     }
 
+    if (!value) {
+        free(lexeme);
+        fprintf(stderr, "Failed to calloc space for the raw numeric value of a token. %s.\n", strerror(errno));
+        return NULL;
+    }
+
     memcpy(lexeme, &SourceCode[start], length);
-    //Setting the base to zero means the function will detect the base.
+    
-    //https://pubs.opengroup.org/onlinepubs/7908799/xsh/strtol.html
+    *value = strtol(lexeme, NULL, base);
-    printf("Number Parsed: %s (%ld)\n", lexeme, strtol(lexeme, NULL, 0));
 
-    if (base == 10) return CreateToken(lexeme, lexeme, Line, NUMBER);
+    if (base == 10) return CreateToken(lexeme, value, Line, NUMBER);
 
-    return CreateToken(lexeme, lexeme, Line, HEX);
+    return CreateToken(lexeme, value, Line, HEX);
 }
 
 Token* ParseDirective(void) {
@@ -132,6 +140,7 @@ Token* ParseDirective(void) {
     }
     else if (strcmp(directive, ".org") == 0) {
         fprintf(stderr, "[Warning] Org is not a supported directive.\n");
+        free(directive);
         IgnoreLine();
         return NULL;
     }