Great question! I love Pandoc and use it often, but as a "universal" converter, it sometimes misses the nuances of specific pairs. Tylax is designed specifically for the LaTeX $\leftrightarrow$ Typst workflow. By focusing on just this 1-on-1 pair, we can offer: Better Math & Macros: A built-in macro expander handles custom commands (\newcommand) and complex nested math that general parsers often struggle with. Cleaner Code: The output is designed to be idiomatic and human-readable (e.g., using native Typst functions), not just "compilable." WASM Support: Being written in Rust means it runs instantly in the browser, making it easy to embed in web apps without a backend. Pandoc is the Swiss Army knife; we're trying to be a specialized tool just for this specific transition.

Thanks for the stress test! You are absolutely right, and I really appreciate you catching this edge case.

I've traced the issue in the codebase: 1. The recursion depth limit *is* triggering correctly (preventing an infinite loop). 2. However, when it bails out, it returns the partially expanded macro call (e.g., `\foo{x}`). 3. Since the macro definition was removed during the preprocessing step, the parser then sees `\foo` as an unknown command and converts it into an error comment, accidentally discarding the argument `{x}` in the process.

*The intended behavior* should definitely be to preserve the content (the `x`) even if the macro logic fails. I will fix the fallback logic to ensure it fails gracefully without eating the arguments.

Thanks again for the sharp eye! These kinds of checks are super helpful.