> I suggest the developer also look into auto-generated visitor / traversal functions as well In fact, langcc already has visitor/traversal functions, though t

> I suggest the developer also look into auto-generated visitor / traversal functions as well In fact, langcc already has visitor/traversal functions, though they are not so well documented yet. I have just added an example (expr_simpl in https://github.com/jzimmerman/langcc/blob/main/examples/calc/calc_main.cpp https://github.com/jzimmerman/langcc/blob/main/examples/calc...). > Another suggestion is to make sure the grammar preserves source information (file, line, column span) This is already present as well (the calc example illustrates this functionality). > implement re-printing which preserves comments and whitespace I considered doing this, but it's surprisingly difficult to get the specification right, especially in whitespace-sensitive languages like Python.