Basic list support

src/lexer/lexer.h

@@ -15,7 +15,7 @@
 class Lexer {
     private:
     std::vector<char> delimiters = {
-        '(', ')', '{', '}', '.', '\n', ' '
+        '(', ')', '{', '}', '[', ']', '.', '\n', ' ', ','
     };
     std::string file;
     size_t incrementor = -1;