One-shot a regexp, sure. One-shot a full compiler, not a chance. Check out the repository - it has a full compiler that produces binaries, and a bunch of addit

One-shot a regexp, sure. One-shot a full compiler, not a chance. Check out the repository - it has a full compiler that produces binaries, and a bunch of additional tooling. Doing that, even if he'd asked for a compiler for an existing language with no changes, is impressive.