A comprehensive package for processing, converting, and serving SGML on the command line, on the server side, or in the browser; see [1]. Also features SGML DTD

A comprehensive package for processing, converting, and serving SGML on the command line, on the server side, or in the browser; see [1]. Also features SGML DTDs (grammars) for W3C HTML 5, 5.1, 5.2, and Review Drafts January 2020 and 2023, which are the latest non-volatile W3C and WHATWG HTML recommendations/spec versions. [1]: https://www.npmjs.com/package/sgml https://www.npmjs.com/package/sgml Edit: your comment is a welcome reminder to improve the site, which isn't an easy thing to do however due to sheer volume of the material, even though it's using SGML for shared boilerplate inclusion, ToC/site nav and page nav generation, etc. (in fact, by calling sgmlproc from a Makefile)