Extend main for export

Project-02/main.py

@@ -100,8 +100,20 @@ if __name__ == "__main__":
             print("")
             pretty_print(ast)
 
-        # Show AST graph
-        if prompt_yesno("Display AST diagram?"):
+        # Export DOT
         dot_str = ast.to_dot()
+        if prompt_yesno("Export AST as .dot file?"):
+            default = f"{path.stem}.dot"
+            out = input(f"Filename [{default}]: ").strip()
+            if not out:
+                out = default
+            try:
+                Path(out).write_text(dot_str, encoding="utf-8")
+                print(f"Saved DOT file as: {out}")
+            except Exception as e:
+                print(f"Could not save DOT file: {e}")
+
+        # Display AST diagram
+        if prompt_yesno("Display AST diagram?"):
             render_ast_from_string(dot_str)
             print("Rendered AST diagram.")

Project-02/triplalex.py

@@ -16,7 +16,7 @@ reserved = {
     'false': 'FALSE'
 }
 
-# List of token names. This is always requiredy
+# List of token names.
 tokens = [
     'ID',
     'CONST',