I think there's a few Rust ones knocking around, some LLM-assisted. I've recently had Claude re-implement the inline parser (https://github.com/oxidecomputer/react-asciidoc) using our large corpus (600+) of AsciiDoc documents
Had it convert it in this and the stock version, compare the output, fix and repeat.
Had it convert it in this and the stock version, compare the output, fix and repeat.