added parser logic

src/Interpreter/Repo.py

@@ -44,13 +44,14 @@ class Repo:
             'list',
             'dict'
         ]
+        self.format_chars = ['{', '}', '(', ')', ';', ':', ',']
         self.expr_chars = ['+', '-', '*', '/', '=', '^']
         self.bool_expr_chars = ['<', '>', '!', '!=', '==', '>=', '<=']
         self.bool_values = ['true', 'false']
-        self.format_chars = ['{', '}', '(', ')', ';', ':', ',']
 
         # runtime
         self.error = None
+        self.ast = []
 
     def output_tokens(self, toks: list) -> None:
         if self.debug and len(toks) > 0: