Which is really sad. This is the actual reason why I preferred C over Python[*] for that project, so I could use my own library for HTML generation, which does exactly that. It also ameliorates the `goto cleanup;` thing, since now you can just tell the library to throw subtrees away. And the best thing is, that you can MOVE, and COPY them, which means you can generate code once and then fill it with the data and still later modify it. This means you can also refer to earlier generated values to generate something else, without needing to store everything twice or reparse your own output.

[*] I mean yeah, I could have written a wrapper, but that would have taken far more time.